Is Left Ventricular Noncompaction Only a Morphological Feature? A Case of Disappearance of Noncompaction after Surgical Correction of Aorto-Right Ventricular Fistula, Interventricular Septal Defect and Aortic Stenosis.

A 55-year-old man complaining of worsening dyspnea on exertion was diagnosed with restrictive interventricular septal defect, left ventricular noncompaction (LVNC), mild aortic valve stenosis and aorto-right ventricular fistula. He underwent surgical aortic valve replacement with a mechanical bileaflet valve (St. Jude n.

Pacing failure due to microdislodgement of ventricular pacing lead detected by home monitoring technology.

A 68-year-old woman affected by sick sinus syndrome was implanted with a dual-chamber pacemaker provided by home monitoring technology. After discharge, an increase in ventricular threshold and a high variability of R wave measurements were detected early by the home monitoring system. Manual tests confirmed the presence of pacing and sensing failure and a normal ventricular impedance.

Asymptomatic malposition of a pacing lead in the left ventricle: the case of a woman untreated with anticoagulant therapy for eight years.

We report the case of a woman with a low-rate atrial fibrillation and a wire lead inadvertently inserted in the left ventricle through an ostium secundum defect. The malposition of the lead was diagnosed 8 years after the procedure on the basis of the presence of a right bundle branch block pattern of the paced QRS, at echocardiography and at chest X-ray. The patient, who was neither on antiaggregant nor anticoagulant therapy, was asymptomatic.

Atrioventricular nodal reentrant tachycardia with ventriculoatrial block and unsuccessful ablation of the slow pathway.

We report the case of failed slow pathway ablation in a woman with typical AV nodal reentrant tachycardia (AVNRT) and periods of Wenckebach-like second-degree VA block and 2:1 VA block. The occurrence of VA block during AVNRT suggests the upper turnaround point of the circuit is confined to the AV node. This supports the notion that, at least in some cases, the location of the reentrant circuit for AVNRT is completely in the compact AV node.