NuVasive NVM5 Manual De Instrucciones página 16

INDICATIONS AND SAFETY cont.
Contraindications
The NVM5 System may not be effective, and is not intended for use, when
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neuromuscular block or epidural blocks have been used for, or in conjunction with,
anesthesia. Contraindications to use of transcranial Motor Evoked Potential (MEP)
monitoring include epilepsy, cortical lesions, convexity skull defects, raised intracranial
pressure, cardiac disease, proconvulsant medications or anesthetics, intracranial
electrodes, vascular clips or shunts, and cardiac pacemakers or other implanted
biomedical devices. Otherwise unexplained intraoperative seizures and possibly
arrhythmias are indications to abort MEP.
Medical conditions that contraindicate the use of the NuVasive Bendini Spinal Rod
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Bending System and its associated applications include any medical conditions that may
contraindicate the medical procedure itself.
CONTRAINDICATION: Neuromuscular Block or paralytics should not be in effect during
the use of NVM5 EMG as they might interfere with the electromyography readings.
CONTRAINDICATION: Do not use the NVM5 System in conjunction with high frequency
electromagnetic diathermy devices. Failure to do so may result in patient burns at the
electrode sites.
CONTRAINDICATION: Use of MEPs is contraindicated in patients with a history of head
injury, cerebral aneurysm, stroke, seizures, other neurological impairments, or patients
with metal plates or fragments in their head.
CONTRAINDICATION: Do not attempt to use this device when using paralyzing agents on
the patient, as nerve surveillance may be compromised.
CONTRAINDICATION: Do not use cutaneous electrodes for stimulation (stimulation
electrodes) if the patient has a cardiac pacemaker, implanted defibrillator, or other
implanted metallic or electronic device. Such use could cause electric shock, burns,
electrical interference, or death.
CONTRAINDICATION: Minimize coupling with electrosurgical equipment when setting up
the NVM5 System. Some actions that may help reduce electrical coupling include: locate
the electrosurgical patient return pad as close to the surgical site as practical; route the
monopolar and bipolar electrosurgical wiring together and away from any other patient
connected leads and electrodes; minimize the activation of electrosurgical instruments
while they are not in patient contact; plug the electrosurgical generator equipment into
a separate power outlet from any other patient-connected electrical device; and use the
lowest electrosurgical power setting that achieves the surgical requirement.
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