Pacemaker-induced pseudotricuspid regurgitation.
A patient with aortic stenosis and ventricular pacemaker had clinical findings suggesting tricuspid regurgitation. Her presentation was actually caused by regular and constant cannon waves resulting from ventriculoatrial conduction of paced beats. The correct diagnosis was confirmed by abolition of hepatic pulsations during atrial pacing at the time of cardiac catheterization. Therapy consisted of restoring antegrade atrioventricular conduction.
D000368:Aged; D002304:Cardiac Pacing, Artificial / Q000009:adverse effects*; D005260:Female; D006801:Humans; D014262:Tricuspid Valve Insufficiency / Q000175:diagnosis / Q000209:etiology*