Key result
Electrophysiologic testing reveals left lateral accessory pathway SVT associated with an octopus-like papillary muscle.
Why the study?
Left ventricular papillary muscle abnormalities are rare and have been associated with mitral valve dysfunction and left ventricular obstruction, but their relation to accessory pathways is not well described.
Case Report (n=1)
May link rare LV papillary anomalies to accessory pathway SVT; leaves open systematic EP evaluation in congenital cases.
Left ventricular papillary muscle abnormalities are rare malformations. They have been related to significant mitral valve dysfunction and left ventricular midcavitary obstruction. We report our experience with a young adult who presented with palpitations. An echocardiogram on the patient showed an "octopus-like" left ventricular papillary muscle. Subsequent electrophysiologic testing showed evidence of supraventricular tachycardia via a left lateral accessory pathway associated with the abnormal insertion of the papillary muscle attachments.
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Patel et al. (2009) conducted a case report in Left ventricular papillary muscle abnormality and supraventricular tachycardia (n=1). Echocardiogram and electrophysiologic testing was evaluated. Electrophysiologic testing identified supraventricular tachycardia via a left lateral accessory pathway associated with an octopus-like left ventricular papillary muscle in a young adult.
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