- Disable anti-tachyarrhythmia therapy (shock[s] and antitachycardia pacing) in an ICD when EMI is expected.
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- Disable anti-tachyarrhythmia therapy where movement from shock might create a hazard (eg, intraocular surgery).
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- Produce asynchronous pacing in a pacing-dependent patient when EMI is expected.
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- Increase the paced heart rate in a patient with sinus node incompetence to augment perioperative cardiac output and oxygen delivery.
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- Disable a minute ventilation sensor to prevent inappropriate high rate pacing in the presence of any monopolar radiofrequency instruments.
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- Disable a mechanical rate sensor where surgery will likely produce mechanical stimulation near the pulse generator (eg, breast surgery).
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Magnet use may be an acceptable alternative to reprogramming with a programming machine if: |
- Response to magnet is known and effect is desirable
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- Access to magnet is adequate
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- Magnet can be easily removed in case of arrhythmia
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