Quiz

ECG 4.2

Patient: 69-year-old man implanted with a Medtronic dual-chamber pacemaker following repeated syncopes due to sinus node dysfunction; the 2 pacing leads are well positioned with normal pacing impedances, correct sensing and satisfactory pacing thresholds; 3 days after implantation, pacemaker evaluation; programming of various pacing modes and recording of tracings; for this first tracing, ; device programmed to DOO mode;

 

 

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