For complete MRI guidance, parameters and cautions for all Abbott neuromodulation systems, please see the MRI Procedure Information for the patient's implanted device.
For complete MRI guidance, parameters and cautions for all Abbott neuromodulation systems, please see the MRI Procedure Information for the patient's implanted device.
We know that MRI images are used as a tool to visualize diagnostic imaging and help provide information that may be useful to a clinician. That's why we’ve designed our devices and technologies to fit as seamlessly as possible into this critical step in your diagnostic workflow. Certain Abbott neurostimulation systems are MR Conditional with 1.5T closed bore scanners subject to conditions in the MRI Procedures Manual.
Before your patient undergoes an MRI scan:
Confirm the MR Conditional components and location of the system (this information is included on the Abbott Patient Implant card).
Confirm that no adverse conditions to MR scanning are present.
Ensure the patient’s neurostimulation system is in MRI mode.
Review the general scan requirements.
Confirm implant locations and scan requirements for the patient’s system.
Please select 'Scan Details' in the table below to view specific scan requirements.
We offer products that are MR Conditional for spinal cord stimulation (SCS) and dorsal root ganglion (DRG) therapy. Learn more about the scan details for our MR Conditional products below.
WARNING: For a neurostimulation system to be MR Conditional, all implanted components must be approved MR Conditional models and implanted in approved locations according to the following table. If the implanted system contains components or models not listed in the following table, then the system is considered MR Unsafe. In addition, a component must be implanted in its approved location as listed in the following table or the entire implanted system is considered MR Unsafe.
| Generator | Lead Type | Lead Length | Location | |
|---|---|---|---|---|
| Eterna™ SCS System (model 32400) | Octrode™
Penta™ | 60cm | Upper buttock, low back, midline, flank or abdomen | Scan Details |
Octrode™
TriCentris™ | 90cm | |||
Proclaim™ XR 5 & 7 | Octrode™
Penta™ | 60 cm | Upper buttock, low back, midline, flank or abdomen
Upper buttock, low back, midline, flank or abdomen |
|
| Protege™ or Prodigy™ MRI IPG (models 3771, 3772) | Octrode™
Penta™ | 60 cm | Upper buttock, low back, midline, flank or abdomen NOTE: Lead tip must be located between T7 and T12 | Scan Details |
| Proclaim™ DRG (model 3664) | MN20450-50 or MN20450-50A | 50 cm | Upper buttock, low back, flank, or abdomen NOTE: Lead tip must be located between C6 and S2 | Scan Details |
Abbott offers two types of MR Conditional, fully implanted DBS configurations:
WARNING: For an MR Conditional system, all implanted components must be approved MR Conditional models. If the implanted system contains any other components or models than what appears in the following tables, then the system is considered untested for an MRI environment.
All components listed must be implanted unless noted as "optional." Up to two leads, lead protection boots, and burr hole covers may be implanted. See Full System Components below if the patient has an IPG and extensions implanted.
For complete guidance, directions, and cautions on MRI safety with a specific device, please review the MRI procedure clinician's manual.
Approved models and implant locations for an MR Conditional lead-only system
| Component | Model | Location | |
|---|---|---|---|
| Lead | 6170 directional lead, 30 cm, 0.5-mm spacing, black 6171 directional lead, 30 cm, 1.5-mm spacing, black 6172 directional lead, 40 cm, 0.5-mm spacing, black 6173 directional lead, 40 cm, 1.5-mm spacing, black | • Fully implanted in the brain, routed under the scalp • Must be connected to a lead protection boot | Scan Details |
| Lead protection boot | Included in lead kit | • Fully implanted under the skin • Must be connected to a lead | |
| Burr hole cover (optional) | 6010 Guardian™ cranial burr hole cover system | Head |
All components listed must be implanted unless noted as "optional." Up to two IPGs, leads, extensions, and burr hole covers may be implanted.
For complete guidance, directions, and cautions on MRI safety with a specific device, please review the MRI procedure clinician's manual.
Approved models and implant locations for an MR Conditional full system
| Component | Model | Location | |
|---|---|---|---|
| IPG* | 6660 Infinity 5 IPG 6662 Infinity 7 IPG | • Pectoral • Abdomen | Scan Details |
| Lead | 6170 directional lead, 30 cm, 0.5-mm spacing, black 6171 directional lead, 30 cm, 1.5-mm spacing, black 6172 directional lead, 40 cm, 0.5-mm spacing, black 6173 directional lead, 40 cm, 1.5-mm spacing, black | • Fully implanted in the brain, routed under the scalp and connected to an extension • May cross the head's midline | |
| Extension | 6371 flexible extension, 50 cm 6372 flexible extension, 60 cm | Head and neck, routed to the IPG on the same side of the body as the IPG | |
| Burr hole cover (optional) | 6010 Guardian™ cranial burr hole cover system | Head |
*The IPG port plug associated with these models is also an MR Conditional component
The following warnings, precautions, and potential adverse events apply when performing MRI scans on Abbott MR Conditional SCS/DRG systems.
Unapproved components. Do not perform an MRI scan on patients who have any components of a neurostimulation system that are unapproved for use in an MR environment. Serious patient injury could occur.
Abandoned devices. Do not perform an MRI scan on patients who have an incomplete neurostimulation system, where a lead is present without the IPG or disconnected from the system. Serious patient injury could occur.
Nonfunctional leads. Do not perform an MRI scan on patients when the “MRI is Not Advised. There may be a problem with the implanted lead(s).” message displays when attempting to enter MRI mode on the patient controller. MRI scans of nonfunctional leads may result in excessive heating occurring at the location of the implanted lead electrodes and serious patient injury.
Location of implanted system. To meet the MR Conditional requirements, components must be implanted according to the approved locations specified by the MRI labeling. The MR Conditional leads must be implanted in the epidural space and routed subcutaneously to the IPG pocket. Two leads should travel in close proximity to one another from the IPG to the spine. Lead tips can be located at different spinal epidural levels. MRI scans of implants that are not located in approved locations can possibly result in increased unintended stimulation, excessive heating at the lead electrodes, and serious patient injury.
Location of RF transmit-receive coils [Select systems only, refer to the MR Procedure Information to determine applicability]. Head or extremity MRI scans can be conducted safely using a Detachable Head or Extremity RF transmit-receive coil when no parts of the implanted neurostimulation system are within the transmit-receive coil according to the conditions specified for each system in the MRI labeling. This can be confirmed with X-ray imaging of the neck, head, and extremity regions or by referring to the patient records.
Skin erosion. Do not perform an MRI scan on patients who have any portion of their implanted system exposed due to skin erosion. The MRI scan may result in excessive heating of the system and serious patient injury.
Neurostimulation trial systems. Do not perform an MRI scan on patients who have an external neurostimulation trial system or any components that are not fully implanted. Serious patient injury could occur.
Multiple neurostimulation systems. Do not perform an MRI scan on patients who have multiple MR Conditional neurostimulation systems for pain (multiple IPGs for pain). MRI scans may result in excessive heating of the lead electrodes and serious patient injury.
Other implanted medical devices. Prior to an MRI examination, determine whether the patient has multiple medical device implants, either active medical device implants (such as deep brain stimulation systems, implantable cardiac defibrillators, pacemakers) or passive medical device implants (such as spinal hardware, stents). Of all medical device implants, the most restrictive MRI exposure requirements must be used. Do not conduct an MRI scan if any conditions or implants prohibit it, as serious patient injury could occur. If you are unclear what implants are present, perform an X‑ray to determine the implant type and location.
Imaging with atoms other than hydrogen. Do not conduct MRI scans with nonproton scanning frequencies (such as 13C, 23Na, or 31P). Frequencies other than 64 MHz could cause device damage, excessive heating, and serious patient injury.
MRI system type. Only use 1.5T cylindrical-bore magnet, horizontal field orientation MRI systems. Do not scan with other MRI systems, such as 1.0T and 3.0T machines or vertical field orientation machines, as device damage, excessive heating of implanted components, and serious patient injury could occur.
Patient position. Do not scan with the patient in any prone positions or “superman” positions (where the patient's arm is raised above his or her head). Use of these positions could cause device damage and excessive heating of implanted components, which could result in serious patient injury.
Operating mode. Do not conduct MRI scans in first-level controlled or second-level controlled operating mode. These modes allow higher levels of RF energy and may cause excessive heating of implanted components, which could result in serious patient injury.
SAR or B1+rms limits. For scans requiring maximum SAR <2 W/kg or specific maximum B1+rms value, personnel knowledgeable in MR safety should be involved to optimally plan the scan and actively monitor SAR or B1+rms levels during the scan. Ensure the scanner displays the SAR or B1+rms value prior to starting the scan. Exceeding the SAR or B1+rms limits may cause excessive heating of implanted components, which could result in serious patient injury.
Transmit coils. Only use circularly polarized transmit coil designs. Do not scan with other transmit coil designs (for example, linear, phased-array, or saddle) as serious patient injury could occur.
Active scan time. The total active scan time must be limited to 30 minutes per session with a wait time of 30 minutes between sessions. Exceeding the active scan time limit increases the risk of excessive heating and serious patient injury.
Fever. Before an MRI scan, determine the patient's body temperature. If the patient has a fever, do not perform an MRI scan. The MR Conditional evaluation has been performed for patients with a typical body temperature of 37°C (98.6°F). Elevated body temperature in conjunction with tissue heating caused by the MRI scan could result in excessive heating of implanted components and serious patient injury.
External devices. Do not allow external control devices into the scanner magnet room, such as a programmer, controller, or charging system. Because these devices contain ferromagnetic material, they can be affected by the MRI magnet, may present a projectile hazard, and are considered MR Unsafe.
Electromagnetic interference (EMI). Some electrical equipment, such as an MRI machine, may generate enough EMI to interfere with the operation of the internal or external electronic components of a neurostimulation system if the equipment is too close to the system component. To mitigate the effects of possible EMI, increase the distance between the electrical equipment and the system component that is affected, and try performing the operation again.
Lead electrode heating resulting in patient discomfort, tissue damage, or serious patient injury
IPG heating resulting in tissue damage in the implant pocket or patient discomfort or both
Induced currents on leads resulting in overstimulation or shocking sensations
Damage to the IPG or leads causing the system to fail to deliver stimulation or causing the system to deliver overstimulation
Damage to the functionality or mechanical integrity of the IPG resulting in the inability to communicate with the IPG
Movement or vibration of the IPG or leads
The following warnings, precautions, and potential adverse events apply when performing MRI scans on Abbott MR Conditional DBS systems.
Unapproved components. Do not perform an MRI scan on patients who have any components of a neurostimulation system that are unapproved for use in an MR environment.
Abandoned devices. Do not perform an MRI scan on patients who have any abandoned neurostimulation devices, such as an implantable pulse generator (IPG), lead, extension, or adapter.
Nonfunctional leads or extensions. Do not perform an MRI scan on patients with broken or intermittent MR Conditional leads or extensions, or impedance measurements not within the impedance limits. MRI scans of patients with nonfunctional leads may result in higher than normal heating occurring at the location of the implanted lead electrodes.
Location of implanted system. To meet the MR Conditional requirements, components must be implanted according to the approved locations specified by the MRI labeling. Implant location can be confirmed with X-ray imaging or by referring to the patient records. The MR Conditional leads and extensions must be fully implanted under the skin and routed on the same side of the body as the IPG pocket.
Routing multiple leads and extensions to the same IPG. If multiple MR Conditional leads and extensions are routed to the same IPG, they should be routed in close proximity on the same side of the body as the IPG. Nonadjacent leads and extensions can result in increased unintended stimulation or heating at the lead electrodes.
Partially implanted or exposed components. Do not perform an MRI scan on patients who have any portion of their system exposed due to partial implantation or skin erosion. The MRI scan may cause heating of the system, which could result in serious patient injury.
Multiple neurostimulation systems. If a patient is implanted with two DBS IPGs, ensure that both IPGs are set to MRI mode before scanning. If a patient is implanted with one lead-only system and one full system, follow the more restrictive MRI scanning requirements of the systems, and ensure that the IPG is set to MRI mode before scanning.
Other implanted medical devices. Scanning patients who have other MR Conditional devices is acceptable as long as all the MR Conditional requirements for each of the implanted devices are met. Do not conduct an MRI scan if any conditions or implants prohibit it. If you are unclear what implants are present, perform an X‑ray to determine the implant type and location.
Imaging with atoms other than hydrogen. Imaging with atoms other than hydrogen has not been tested and could result in serious patient injury.
Patient body temperature. Before an MRI scan, determine the patient's body temperature. If the patient has a fever, you should not perform an MRI scan.
External devices. Do not allow external control devices, such as a patient controller or clinician programmer, into the scanner magnet room. Because these devices contain ferromagnetic material, they can be affected by the MRI magnet, may present a projectile hazard, and are considered MR Unsafe.
Electromagnetic interference (EMI). Some electrical equipment, such as an MRI machine, may generate enough EMI to interfere with the operation of the internal or external electronic components of a neurostimulation system if the equipment is too close to the system component. To mitigate the effects of possible EMI, increase the distance between the electrical equipment and the system component that is affected, and try performing the operation again.
Turning off stimulation before a scan. When you set a full system into MRI mode, stimulation turns off. Carefully consider a patient’s underlying medical condition and disease symptoms before turning off a neurostimulation system when performing an MRI scan. Consult with the appropriate medical professional, such as a patient’s DBS managing clinician, to determine if it is safe to turn off stimulation to conduct an MRI scan. Do not conduct an MRI scan if stimulation needs to stay on.
Lead electrode heating resulting in tissue damage or serious patient injury
IPG heating resulting in tissue damage in the implant pocket or patient discomfort or both
Induced currents on leads resulting in unpleasant sensations or motor disturbances
Damage to the IPGs, leads, or extensions causing the system to fail to deliver stimulation or causing the system to deliver overstimulation
Damage to the functionality or mechanical integrity of the IPG resulting in the inability to communicate with the IPG
Movement or vibration of the IPGs, leads, or extensions
23-85172 MAT-2312884 v1.0 | Item approved for EMEA use only.
Read this section to gather important prescription and safety information. For specific indications, contraindications, instructions, warnings, precautions, and adverse effects about system components available in your country or region, see the approved clinician's manual for those components.
This neurostimulation system is designed to deliver low-intensity electrical impulses to nerve structures. The system is intended to be used with leads and associated extensions that are compatible with the system.
This neurostimulation system is indicated for the management of chronic, intractable pain.
This neurostimulation system is contraindicated for patients who are
Patients who failed to receive effective pain relief during trial stimulation are contraindicated to process to the permanent implant procedure.
Some models of this system are Magnetic Resonance (MR) Conditional, and patients with these devices may be scanned safely with magnetic resonance imaging (MRI) when the conditions for safe scanning are met. For more information about MR Conditional neurostimulation components and systems, including equipment settings, scanning procedures, and a complete listing of conditionally approved components, refer to the MRI procedures clinician's manual for neurostimulation systems (available online at medical.abbott/manuals).
The following warnings apply to this neurostimulation system.
Clinician training. Implanting physicians should be experienced in the diagnosis and treatment of chronic pain syndromes and have undergone surgical and device implantation training for dorsal root ganglion (DRG) neurostimulation systems.
Pregnancy and nursing. Safety and effectiveness of neurostimulation for use during pregnancy and nursing have not been established.
Pediatric use. The safety and effectiveness of neurostimulation for pediatric use have not been established.
External defibrillators. Safety for use of external defibrillator discharges on a patient receiving neurostimulation has not been established. External defibrillation can cause induced currents in the lead-extension portion of the neurostimulation system. After defibrillation, confirm the neurostimulation system is still working.
Magnetic resonance imaging (MRI). Some patients may be implanted with the components that make up a Magnetic Resonance (MR) Conditional system, which allows them to receive an MRI scan if all the requirements for the implanted components and for scanning are met. A physician can help determine if a patient is eligible to receive an MRI scan by following the requirements provided by Abbott Medical. Physicians should also discuss any risks of MRI with patients.
Patients without an MR Conditional neurostimulation system should not be subjected to MRI because the electromagnetic field generated by an MRI may damage the device electronics, cause heating at the lead tip that could result in tissue damage, and induce voltage through the lead that could jolt or shock the patient.
Computed tomography (CT). If the patient requires a CT scan, all stimulation should be turned off before the procedure. If stimulation is not turned off, the patient may experience a momentary increase in stimulation, which may be uncomfortable. Before beginning a CT scan, the operator should use CT scout views to determine if implanted or externally worn electronic medical devices are present and if so, their location relative to the programmed scan range.
Important note: For CT procedures that require scanning over the medical device continuously for more than a few seconds, as with CT perfusion or interventional exams, attending staff should be ready to take emergency measures to treat adverse reactions if they occur.
After CT scanning directly over the implanted or externally worn electronic medical device:
Diathermy therapy. Do not use short-wave diathermy, microwave diathermy, or therapeutic ultrasound diathermy (all now referred to as diathermy) on patients implanted with a neurostimulation system. Energy from diathermy can be transferred through the implanted system and cause tissue damage at the location of the implanted electrodes, resulting in severe injury or death.
Diathermy is further prohibited because it may also damage the neurostimulation system components. This damage could result in loss of therapy, requiring additional surgery for system implantation and replacement. Injury or damage can occur during diathermy treatment whether the neurostimulation system is turned on or off. Advise patients to inform their healthcare professional that they should not be exposed to diathermy treatment.
Electrosurgery. To avoid harming the patient or damaging the neurostimulation system, do not use monopolar electrosurgery devices on patients with implanted neurostimulation systems. Before using an electrosurgery device, place the device in Surgery Mode using the patient controller app or clinician programmer app. Confirm the neurostimulation system is functioning correctly after the procedure.
During implant procedures, if electrosurgery devices must be used, take the following actions:
Implanted cardiac systems. Physicians need to be aware of the risk and possible interaction between a neurostimulation system and an implanted cardiac system, such as a pacemaker or defibrillator. Electrical pulses from a neurostimulation system may interact with the sensing operation of an implanted cardiac system, causing the cardiac system to respond inappropriately. To minimize or prevent the implanted cardiac system from sensing the output of the neurostimulation system,
Other active implantable devices. The effect of other implanted devices, including deep brain stimulators, peripheral nerve stimulators, implanted drug delivery pumps, and cochlear implants on the neurostimulation system are unknown.
Radiofrequency or microwave ablation. Safety has not been established for radiofrequency (RF) or microwave ablation in patients who have an implanted neurostimulation system. Induced electrical currents may cause heating, especially at the lead electrode site, resulting in tissue damage.
Emergency procedures. Instruct patients to designate a representative (family member or close friend) to notify any emergency medical personnel of their implanted neurostimulation system if emergency care is required. Patients will receive an identification card to carry with them that will inform emergency medical personnel of their implanted system. Advise patients to use caution when undergoing any procedure that could include radiofrequency (RF) or microwave ablation, defibrillation, or cardioversion.
Ultrasonic scanning equipment. The use of ultrasonic scanning equipment may cause mechanical damage to an implanted neurostimulation system if used directly over the implanted system.
Therapeutic radiation. Therapeutic radiation may damage the electronic circuitry of an implanted neurostimulation system, although no testing has been done and no definite information on radiation effects is available. Sources of therapeutic radiation include therapeutic X rays, cobalt machines, and linear accelerators. If radiation therapy is required, the area over the implanted IPG should be shielded with lead. Damage to the system may not be immediately detectable.
Restricted areas. Warn patients to seek medical guidance before entering environments that could adversely affect the operation of the implanted device, including areas protected by a warning notice preventing entry by patients fitted with a pacemaker.
Component manipulation by patients. The patient must be instructed to not rub or exert pressure on implanted components through the skin as this may cause lead dislodgement leading to stimulation at the implant site, IPG inversion leading to the inability to communicate with the device, or skin erosion that can lead to another surgical procedure or possible infection.
Implantation at vertebral levels above T10. The safety and efficacy of implantation of leads implanted above the T10 vertebral level have not been evaluated.
Number of leads implanted. The safety and efficacy of the implantation of greater than four leads have not been evaluated.
Lead movement. Patients should be instructed to avoid bending, twisting, stretching, and lifting objects over 2 kg (5 lb) for at least six weeks after implantation. These activities may cause lead movement, resulting in under stimulation or overstimulation for the patient. Excessive lead migration may require reoperation to replace the leads.
Scuba diving and hyperbaric chambers. Instruct patients to avoid scuba diving and entering hyperbaric chambers above 1.5 atmospheres absolute (ATA) because these activities might damage the neurostimulation system.
Operation of machines, equipment, and vehicles. In the clinical experience with this device, patients have experienced few effects when moving from lying down to sitting up. Therefore, it is unlikely patients will need to adjust stimulation when changing positions or moving. However, advise patients who feel uncomfortable paresthesia during postural changes that they should not operate potentially dangerous equipment such as power tools, automobiles, or other motor vehicles.
These patients should not climb ladders or participate in activities where postural changes or abrupt movements could alter the perception of stimulation intensity and cause patients to fall or lose control of equipment or vehicles or injure others.
Explosive and flammable gases. Do not use a clinician programmer or patient controller in an environment where explosive or flammable gas fumes or vapors are present. The operation of these devices could cause them to ignite, causing severe burns, injury, or death.
Keep the device dry. Programmer and controller devices are not waterproof. Keep them dry to avoid damage. Advise patients to not use their device when engaging in activities that might cause it to get wet, such as swimming or bathing.
Device components. The use of components not approved for use by Abbott Medical with this system may result in damage to the system and increased risk to the patient.
Device modification. The equipment is not serviceable by the customer. To prevent injury or damage to the system, do not modify the equipment. If needed, return the equipment to Abbott Medical for service.
Application modification. To prevent unintended stimulation, do not modify the operating system in any way. Do not use the application if the operating system is compromised (i.e., jailbroken).
Case damage. Do not handle the IPG if the case is pierced or ruptured because severe burns could result from exposure to battery chemicals.
Cremation. The IPG should be explanted before cremation because the IPG could explode. Return the explanted IPG to Abbott Medical.
IPG disposal. Return all explanted IPGs to Abbott Medical for safe disposal. IPGs contain batteries as well as other potentially hazardous materials. Do not crush, puncture, or burn the IPG because explosion or fire may result.
Product materials. Neurostimulation systems have materials that come in contact or may come in contact with tissue. A physician should determine whether or not a patient may have an allergic reaction to these materials before the system is implanted.
Conscious sedation. The placement of the leads involves some risk, as with any surgical procedure. Conscious sedation can cause side effects such as systemic toxicity, or cardiovascular or pulmonary problems. Use caution when sedating the patient. The patient must be awake and conversant during the procedure to minimize the likelihood of nerve damage.
Preventing infection. Always remove the trial leads before implanting the implant leads to avoid the risk of infection that may cause death if the leads are not removed. Use appropriate sterile technique when implanting leads and the IPG.
Lead damage from tools. Use extreme care when using sharp instruments or electrosurgery devices around the lead to avoid damaging the lead.
Needle positioning. Always be aware of the needle tip position. Use caution when positioning the needle to avoid unintended injury to surrounding anatomical structures.
Needle insertion. When using a contralateral approach, advance the needle slowly into the epidural space and take caution as it enters. The needle will be inserted at a steeper angle than in an antegrade approach and there is a greater chance of dural puncture that will lead to a cerebrospinal fluid leak.
Advancing components. Use fluoroscopy and extreme care when inserting, advancing, or manipulating the guidewire or lead in the epidural space to minimize the risk of a dural tear. Dural puncture can occur if needle or guidewire is advanced aggressively once loss of resistance is achieved. Advance the needle and guidewire slowly. Do not use excessive force to push the lead or sheath into the neural foramen as this may result in permanent or transient nerve damage.
Removing components. Use extreme care when removing the lead stylet, the delivery sheath, and the needle to ensure that the distal tip of the lead remains in the desired location. Removing each item in slow movements while holding the remaining components in place will assist this process.
Sheath insertion warning. Insertion of a sheath without the lead may result in dural puncture. Securing the lead with the lead stabilizer will mitigate this risk.
Sheath retraction. If the sheath needs to be retracted from the epidural space, verify that the steering wing is rotated away from the needle mark no more than 90 degrees. Failure to do so may result in damage to the sheath. Before reinserting the sheath, verify there is no damage to the sheath.
Sheath rotation. If the sheath is not responding to rotation, do not rotate the steering wing out of plane from the curve of the sheath more than 90 degrees. The tip of the sheath may whip around and could cause harm to the patient.
Lead insertion through sheath. If the lead is unable to deploy out of the sheath, inject sterile water or saline slowly to release tissue that may have entered between the sheath and the lead. Do not use excessive pressure when injecting through the sheath.
Removing a kinked sheath. If the sheath has been kinked during delivery, slowly retract through the needle with the curve facing the same direction as the bevel. Failure to do so can damage or cut the lead or sheath. If resistance is encountered, pull the needle out of the epidural space and then remove the sheath.
Providing strain relief. Failure to provide strain relief may result in lead migration requiring a revision procedure.
Anchoring leads. Do not suture directly onto the lead to avoid damaging the lead. Failure to appropriately anchor the lead may cause lead migration, motor activation, or painful stimulation.
Remove leads slowly. Remove leads slowly (at a suggested rate of 1 cm/s while holding the lead between the thumb and forefinger) to avoid breaking the lead and leaving fragments in the patient. If resistance is met while removing leads from the epidural space, do not use excessive force to extract. Always perform removal with the patient conscious and able to give feedback.
The following precautions apply to this neurostimulation system.
General Precautions
Sterilization and Storage
Handling and Implementation
Hospital and Medical Environments
Home and Occupational Environments
In addition to those risks commonly associated with surgery, the following risks are associated with using this neurostimulation system:
Additional risks to the patients, as a result of the placement and stimulation of the lead in the area of the dorsal root ganglion (DRG), include pain from setting the stimulation parameters too high. This may occur once the lead is in place and is connected to the neurostimulator and activated. The neurostimulator is controlled by a trained operator and the starting point for the stimulation will be set to the lowest available settings. Additionally, all patients will be awake and conversant during the procedure to minimize the impact.
MAT-2300507 v1.0 | Item approved for EMEA use only.
Read this section to gather important prescription and safety information. For specific indications, contraindications, instructions, warnings, precautions, and adverse effects about system components available in your country or region, see the approved clinician's manual for those components.
This neurostimulation system is designed to deliver low-intensity electrical impulses to nerve structures. The system is intended to be used with leads and associated extensions that are compatible with the system.
United States:
The neurostimulation system is indicated for the following conditions:
International:
The neurostimulation system is indicated for the following conditions:
United States:
This system is contraindicated for patients who meet the following criteria:
The following procedures are contraindicated for patients with a deep brain stimulation system. Advise patients to inform their healthcare professional that they cannot undergo the following procedures:
International:
Implantation of this neurostimulation system is contraindicated for the following:
The following procedures are contraindicated for patients that have been implanted with this device:
Diathermy therapy. Do not use short-wave diathermy, microwave diathermy, or therapeutic ultrasound diathermy (all now referred to as diathermy) on patients implanted with a neurostimulation system. Energy from diathermy can be transferred through the implanted system and can cause tissue damage at the location of the implanted electrodes, resulting in a severe injury or death.
Diathermy is further prohibited because it may also damage the neurostimulation system components. This damage could result in loss of therapy, requiring additional surgery for system replacement. Injury or damage can occur during diathermy treatment whether the neurostimulation system is turned on or off. All patients are advised to inform their healthcare professional that they should not be exposed to diathermy treatment.
Some models of this system are Magnetic Resonance (MR) Conditional, and patients with these devices may be scanned safely with magnetic resonance imaging (MRI) when the conditions for safe scanning are met. Scanning under different conditions may cause device malfunction, severe patient injury, or death. For more information about MR Conditional deep brain stimulation (DBS) components and systems, including equipment settings, scanning procedures, and a complete listing of conditionally approved components, refer to the MRI procedures clinician's manual for DBS systems (available online at manuals.sjm.com).
The following warnings apply to this neurostimulation system.
Pregnancy and nursing. Safety and effectiveness of neurostimulation for use during pregnancy and nursing have not been established. Patients should not use this neurostimulation system if they are pregnant or nursing.
Magnetic resonance imaging (MRI). Some patients may be implanted with the components that make up a Magnetic Resonance (MR) Conditional system, which allows them to receive an MRI scan if all the requirements for the implanted components and for scanning are met. A physician can help determine if a patient is eligible to receive an MRI scan by following the requirements provided by Abbott Medical. Physicians should also discuss any risks of MRI with patients.
If any component of the implanted neurostimulation system, such as an IPG, lead, or extension, does not meet the requirements for an MR Conditional system, do not perform an MRI scan. If a system does not meet the MR Conditional requirements, consider it MR Unsafe.
High stimulation outputs and charge density limits. Avoid excessive stimulation. A risk of brain tissue damage exists with parameter settings using high amplitudes and wide pulse widths. High amplitudes and wide pulse widths should only be programmed with due consideration of the warnings concerning charge densities.
The system can be programmed to use parameter settings outside the range of those used in the clinical studies. If the programming of stimulation parameters exceeds the charge density limit of 30 μC/cm2, a screen will appear warning you that the charge density is too high. Charge density can be reduced by lowering the stimulation amplitude or pulse width. For more information, see the clinician programmer manual.
Higher amplitudes and wider pulse widths may indicate a system problem or a suboptimal lead placement. Stimulation at high outputs may cause unpleasant sensations or motor disturbances or may render the patient incapable of controlling the patient controller. If unpleasant sensations occur, the device should be turned off immediately using the patient magnet.
Risk of depression, suicidal ideations, and suicide. New onset or worsening depression, which may be temporary or permanent, is a risk that has been reported with DBS therapy. Suicidal ideation, suicide attempts, and suicide are events that have also been reported. Therefore, physicians should consider the following:
Poor surgical risks. Neurostimulation should not be used on patients who are poor surgical risks or patients with multiple illnesses or active general infections.
Explosive or flammable gases. Do not use the clinician programmer or patient controller in an environment where explosive or flammable gas fumes or vapors are present. The operation of the clinician programmer or patient controller could cause them to ignite, causing severe burns, injury, or death.
Operation of machinery and equipment. Patients should not operate potentially dangerous machinery, power tools, or vehicles or engage in any activity that could be unsafe if their symptoms were to unexpectedly return.
Device components. The use of components not approved for use by Abbott Medical with this system may result in damage to the system and increased risk to the patient.
Electrosurgery. To avoid harming the patient or damaging the neurostimulation system, do not use monopolar electrosurgery devices on patients with implanted neurostimulation systems. Before using an electrosurgery device, place the device in Surgery Mode using the patient controller app or clinician programmer app. Confirm the neurostimulation system is functioning correctly after the procedure.
During implant procedures, if electrosurgery devices must be used, take the following actions:
Radiofrequency or microwave ablation. Careful consideration should be used before using radiofrequency (RF) or microwave ablation in patients who have an implanted neurostimulation system since safety has not been established. Induced electrical currents may cause heating, especially at the lead electrode site, resulting in tissue damage.
Implanted cardiac systems. Physicians need to be aware of the risk and possible interaction between a neurostimulation system and an implanted cardiac system, such as a pacemaker or defibrillator. Electrical pulses from a neurostimulation system may interact with the sensing operation of an implanted cardiac system, causing the cardiac system to respond inappropriately. To minimize or prevent the implanted cardiac system from sensing the output of the neurostimulation system,
Other active implanted devices. The neurostimulation system may interfere with the normal operation of another active implanted device, such as a pacemaker, defibrillator, or another type of neurostimulator. Conversely, the other active implanted device may interfere with the operation of the neurostimulation system.
Case damage. If the case of the implantable pulse generator (IPG) is pierced or ruptured, severe burns could result from exposure to battery chemicals.
Cremation. The IPG should be explanted before cremation because the IPG could explode. Return the explanted IPG to Abbott Medical.
Component disposal. Return all explanted components to Abbott Medical for safe disposal. IPGs contain batteries as well as other potentially hazardous materials. Do not crush, puncture, or burn the IPG because explosion or fire may result.
Coagulopathies. Physicians should use extreme care with lead implantation in patients with a heightened risk of intracranial hemorrhage. Physicians should also consider underlying factors, such as previous neurological injury or prescribed medications (anticoagulants), that may predispose a patient to the risk of bleeding.
Low frequencies. Stimulation frequencies at less than 30 Hz may cause tremor to be driven (meaning that tremor occurs at the same frequency as the programmed frequency). For this reason, programming at frequencies less than 30 Hz is not recommended.
IPG placement. The IPG should be placed into the pocket, at a depth not to exceed 4 cm (1.57 in), with the logo side facing toward the skin surface. Placing the IPG deeper than 4 cm (1.57 in) can impede or prohibit IPG communications with the clinician programmer or patient controller.
Return of symptoms and rebound effect. The abrupt cessation of stimulation for any reason will probably cause disease symptoms to return. In some cases, symptoms may return with a greater intensity than what a patient experienced before system implantation (rebound effect). In rare cases, this can create a medical emergency.
The following precautions apply to this neurostimulation system.
General Precautions
Surgeon training. Implanting physicians should be experienced in stereotactic and functional neurosurgery.
Clinician training. Clinicians should be familiar with deep brain stimulation therapy and be experienced in the diagnosis and treatment of the indication for which the deep brain stimulation components are being used.
Patient selection. Select patients appropriately for deep brain stimulation. The patient should be able and willing to use the patient controller and correctly interpret the icons and messages that appear on the screen.
Especially consider the following additional factors when selecting patients:
Infection. Follow proper infection control procedures. Infections may require that the device be explanted.
Electromagnetic interference (EMI). Some equipment in home, work, medical, and public environments can generate EMI that is strong enough to interfere with the operation of a neurostimulation system or damage system components. Patients should avoid getting too close to these types of EMI sources, which include the following examples: commercial electrical equipment (such as arc welders and induction furnaces), communication equipment (such as microwave transmitters and high-power amateur transmitters), high-voltage power lines, radiofrequency identification (RFID) devices, and some medical procedures (such as therapeutic radiation and electromagnetic lithotripsy).
Security, antitheft, and radiofrequency identification (RFID) devices. Some antitheft devices, such as those used at entrances or exits of department stores, libraries, and other public places, and airport security screening devices may affect stimulation. Additionally, RFID devices, which are often used to read identification badges, as well as some tag deactivation devices, such as those used at payment counters at stores and loan desks at libraries, may also affect stimulation.
Patients should cautiously approach such devices and should request help to bypass them. If they must go through or near a gate or doorway containing this type of device, patients should move quickly and then check their IPG to determine if it is turned on or off.
Unauthorized changes to stimulation parameters. Caution patients to not make unauthorized changes to physician-established stimulation parameters.
Damage to shallow implants. Falling and other traumatic accidents can damage shallowly implanted components such as the leads and extensions.
Keep programmers and controllers dry. The clinician programmer and patient controller are not waterproof. Keep them dry to avoid damage. Advise patients to not use the patient controller when engaging in activities that might cause it to get wet, such as swimming or bathing.
Handle the programmers and controllers with care. The clinician programmer and patient controllers are sensitive electronic devices that can be damaged by rough handling, such as dropping them on the ground.
Battery care. Batteries can explode, leak, or melt if disassembled, shorted (when battery connections contact metal), or exposed to high temperature or fire.
Long-term safety and effectiveness. The long-term safety and effectiveness of this neurostimulation system has not been established beyond 5 years. Safety and effectiveness has not been established for patients with a neurological disease other than Parkinson’s disease or essential tremor, previous surgical ablation procedures, dementia, coagulopathies, or moderate to severe depression; patients under 22 years; implantation in targets other than the STN for Parkinson's disease and the VIM for essential tremor; patients with an active implantable device; patients requiring MRI.
Sterilization and Storage
Single-use, sterile device. The implanted components of this neurostimulation system are intended for a single use only. Sterile components in this kit have been sterilized using ethylene oxide (EtO) gas before shipment and are supplied in sterile packaging to permit direct introduction into the sterile field. Do not resterilize or reimplant an explanted system for any reason.
Storage environment. Store components and their packaging where they will not come in contact with liquids of any kind. Detailed information on storage environment is provided in the appendix of this manual.
Handling and Implantation
Expiration date. An expiration date (or “use-before” date) is printed on the packaging. Do not use the system if the use-before date has expired.
Care and handling of components. Use extreme care when handling system components. Excessive heat, excessive traction, excessive bending, excessive twisting, or the use of sharp instruments may damage and cause failure of the components.
Package or component damage. Do not implant a device if the sterile package or components show signs of damage, if the sterile seal is ruptured, or if contamination is suspected for any reason. Return any suspect components to Abbott Medical for evaluation.
Exposure to body fluids or saline. Prior to connection, exposure of the metal contacts, such as those on the connection end of a lead or extension, to body fluids or saline can lead to corrosion. If such exposure occurs, clean the affected parts with sterile, deionized water or sterile water for irrigation, and dry them completely prior to lead connection and implantation.
Skin erosion. To avoid the risk of skin erosion, implant components at the appropriate depth and inform patients to avoid touching their skin where components are implanted. The IPG should be placed into the pocket, at a depth not to exceed 4.0 cm (1.57 in), with the logo side facing toward the skin surface.
System testing. To ensure correct operation, always test the system during the implant procedure, before closing the neurostimulator pocket, and before the patient leaves the surgery suite.
Device modification. The equipment is not serviceable by the customer. To prevent injury or damage to the system, do not modify the equipment. If needed, return the equipment to Abbott Medical for service.
Multiple leads. When multiple leads are implanted, route the lead extensions so the area between them is minimized. If the lead extensions are routed in a loop, the loop will increase the potential for electromagnetic interference (EMI).
Abandoned leads and replacement leads. The long-term safety associated with multiple implants, leads left in place without use, replacement of leads, multiple implants into the target structure, and lead explant is unknown.
Placement of lead connection in neck. The lead-extension connector should not be placed in the soft tissues of the neck due to an increased incidence of lead fracture.
Hospital and Medical Environments
Electrical medical treatment. In the case that a medical treatment is administered where an electrical current is passed through the body from an external source, first deactivate the IPG by setting all electrodes to off, turning stimulation off, and setting amplitude to zero. Regardless if the device is deactivated, take care to monitor the device for proper function during and after treatment.
High-output ultrasonics and lithotripsy. The use of high-output devices, such as an electrohydraulic lithotriptor, may cause damage to the electronic circuitry of an implanted IPG. If lithotripsy must be used, do not focus the energy near the IPG.
Ultrasonic scanning equipment. The use of ultrasonic scanning equipment may cause mechanical damage to an implanted neurostimulation system if used directly over the implanted system.
External defibrillators. The safety of discharge of an external defibrillator on patients with implanted neurostimulation systems has not been established.
Therapeutic radiation. Therapeutic radiation may damage the electronic circuitry of an implanted neurostimulation system, although no testing has been done and no definite information on radiation effects is available. Sources of therapeutic radiation include therapeutic X rays, cobalt machines, and linear accelerators. If radiation therapy is required, the area over the implanted IPG should be shielded with lead. Damage to the system may not be immediately detectable.
Electrocardiograms. Ensure the neurostimulator is off before initiating an electrocardiogram (ECG). If the neurostimulator is on during an ECG, the ECG recording may be adversely affected, resulting in inaccurate ECG results. Inaccurate ECG results may lead to inappropriate treatment of the patient.
Home and Occupational Environments
Patient activities and environmental precautions. Patients should take reasonable care to avoid devices that generate strong EMI, which may cause the neurostimulation system to unintentionally turn on or off. Patients should also avoid any activities that would be potentially unsafe if their symptoms were to return unexpectedly. These activities include but are not limited to climbing ladders and operating potentially dangerous machinery, power tools, and vehicles. Sudden loss of stimulation may cause patients to fall or lose control of equipment or vehicles, injure others, or bring injury upon themselves.
Control of the patient controller. Advise patients to keep the patient controller away from children and pets in order to avoid potential damage or other hazards.
Activities requiring excessive twisting or stretching. Patients should avoid activities that may put undue stress on the implanted components of the neurostimulation system. Activities that include sudden, excessive or repetitive bending, twisting, or stretching can cause component fracture or dislodgement. Component fracture or dislodgement may result in loss of stimulation, intermittent stimulation, stimulation at the fracture site, and additional surgery to replace or reposition the component.
Activities requiring coordination. Loss of coordination is a potential side effect of DBS therapy. Patients should exercise reasonable caution when participating in activities that require coordination, including those that they were able to perform prior to receiving DBS therapy (for example, swimming).
Bathing. Patients should exercise reasonable caution when bathing.
Component manipulation by patient. Advise your patient to avoid manipulating the implanted system components (e.g., the neurostimulator, the burr hole site). This can result in component damage, lead dislodgement, skin erosion, or stimulation at the implant site. Manipulation may cause device inversion, inhibiting the ability to use the magnet to start or stop stimulation.
Scuba diving or hyperbaric chambers. Patients should not dive below 30 m (100 ft) of water or enter hyperbaric chambers above 4.0 atmospheres absolute (ATA). Pressures below 30 m (100 ft) of water (or above 4.0 ATA) could damage the neurostimulation system. Before diving or using a hyperbaric chamber, patients should discuss the effects of high pressure with their physician.
Skydiving, skiing, or hiking in the mountains. High altitudes should not affect the neurostimulator; however, the patient should consider the movements involved in any planned activity and take precautions to avoid putting undue stress on the implanted system. Patients should be aware that during skydiving, the sudden jerking that occurs when the parachute opens may cause lead dislodgement or fractures, which may require surgery to repair or replace the lead.
Wireless use restrictions. In some environments, the use of wireless functions (e.g., Bluetooth® wireless technology) may be restricted. Such restrictions may apply aboard airplanes, near explosives, or in hazardous locations. If you are unsure of the policy that applies to the use of this device, please ask for authorization to use it before turning it on. (Bluetooth® is a registered trademark of Bluetooth SIG, Inc.)
Mobile phones. The effect of mobile phones on deep brain stimulation is unknown. Patients should be advised to avoid carrying mobile phones in their shirt pocket or otherwise placing them directly over the deep brain stimulation system components. If interference occurs, try holding the phone to the other ear or turning off the phone.
Household appliances. Household appliances that contain magnets (e.g., refrigerators, freezers, inductive cooktops, stereo speakers, mobile telephones, cordless telephones, standard wired telephones, AM/FM radios, and some power tools) may unintentionally cause the neurostimulation system to turn on or turn off.
Therapeutic magnets. Patients should be advised to not use therapeutic magnets. Therapeutic magnets (e.g., magnets used in pillows, mattress pads, back belts, knee braces, wrist bands, and insoles) may unintentionally cause the neurostimulation system to turn on or off.
Deep brain stimulation potentially has the following adverse effects:
Possible surgical complications. Surgical complications include, but are not limited to, the following:
Possible deep brain stimulation complications. Deep brain stimulation complications include, but are not limited to, the following:
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