Pacemaker-induced hypotension.
We report a case of hypotension and decreased cardiac output resulting from artificial ventricular pacemaker rhythm. Hemodynamic deterioration was associated with loss of normal time relationships between atrial and ventricular contraction and paradoxical fall in systemic vascular resistance despite a low output state. The therapeutic implications of this unusual response are discussed.
D000368:Aged; D001794:Blood Pressure; D002302:Cardiac Output; D005260:Female; D006327:Heart Block / Q000628:therapy; D006339:Heart Rate; D006352:Heart Ventricles; D006801:Humans; D007022:Hypotension / Q000209:etiology*; D009200:Myocardial Contraction; D010138:Pacemaker, Artificial / Q000009:adverse effects*; D013318:Stroke Volume; D014655:Vascular Resistance