Mintek LV, LV-T manual 13

Stratos LV/LV-T Technical Manual 5

Transcutaneous Electrical Nerve Stimulation (TENS) – Transcutaneous electrical nerve stimulation may interfere with CRT-P function. If necessary, the following measures may reduce the possibility of interference:

•Place the TENS electrodes as close to each other as possible.

•Place the TENS electrodes as far from the CRT-P/lead system as possible.

•Monitor cardiac activity during TENS use.

Defibrillation – The following precautions are recommended to minimize the inherent risk of CRT-P operation being adversely affected by defibrillation:

•The paddles should be placed anterior-posterior or along a line perpendicular to the axis formed by the CRT-P and the implanted lead.

•The energy setting should not be higher than required to achieve defibrillation.

•The distance between the paddles and the CRT-P/leads should not be less than 10 cm (4 inches).

Radiation – The CRT-P’s internal electronics may be damaged by exposure to radiation during radiotherapy. To minimize this risk when using such therapy, the CRT-P should be protected with local radiation shielding.

Lithotripsy – Lithotripsy treatment should be avoided for CRT-P patients since electrical and/or mechanical interference with the CRT-P is possible. If this procedure must be used, the greatest possible distance from the point of electrical and mechanical strain should be chosen in order to minimize a potential interference with the CRT-P.

Electrocautery – Electrocautery should never be performed within 15 cm (6 inches) of an implanted CRT-P or leads because of the danger of introducing fibrillatory currents into the heart and/or damaging the CRT-P. Pacing should be asynchronous and above the patient’s intrinsic rate to prevent inhibition by interference signals generated by the cautery. When possible, a bipolar electrocautery system should be used.