90 y/o woman h/o sick sinus syndrome, AF, and a pacemaker presents with atypical CP. Troponins are negative, CTPA is negative for PE. She denies palpitations, shock-like sensations, or chest wall contractions. Palpated HR corresponds with QRS complexes on the monitor.
What's going on with this pacemaker? Is the malfunction the cause of her symptoms?
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