Pacemaker Learning Package
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| Asynchronous Pacing DOO
Pacemaker will not sense the pt’s intrinsic rhythm & will pace the pt regardless of any intrinsic activity BEWARE if the mode is set in DOO or if the sensitivity number is set too high ( 20mV) you will cause asynchronous pacing Asynchronous pacing is DANGEROUS as it can cause fatal arrhythmias (VT & VF) Used in OT to prevent interference from diathermy Liverpool Hospital Intensive Care: Learning Packages Intensive Care Unit Pacemaker Learning Package LH_ICU2016_Learning_Package_Pacemaker_Learning_Package 31 | P a g e VDD Allows for pacing in patients with ventricular pacing wires only. Only paces the ventricles Atrial and ventricular sensing Inhibited response to sensing in the ventricle and triggered response to sensing in the atrium Will pace the ventricle depending on what it senses in the atria and ventricle If it senses ventricular activity then it won’t pace If it doesn’t sense ventricular activity it will be triggered to pace the ventricle after it senses the hearts intrinsic atrial activity Figure 19:uptodate.com. A single pacemaker spike (marked by red lines) is followed by a QRS complex which is wide and bizarre and resembles a ventricular beat. There are some normal intervening QRS complexes that suppress the pacemaker when they occur faster than the rate set for the pacemaker. Liverpool Hospital Intensive Care: Learning Packages Intensive Care Unit Pacemaker Learning Package LH_ICU2016_Learning_Package_Pacemaker_Learning_Package tải về 1.43 Mb. Chia sẻ với bạn bè của bạn:
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