Left-sided anomalies in Ebstein's malformation of the tricuspid valve.

A review of 34 autopsied cases with classical Ebstein's malformation of the tricuspid valves revealed 8 cases with left-sided anomalies. Among these, appearing in 1 case each, were aortic atresia and persistent common atrioventricular canal. The latter 2 conditions were dominant clinically.

Three-dimensional teaching model for coronary angiography.

In order to improve the understanding and interpretation of cine coronary arteriograms obtained in various angled projections, a three-dimensional wire model was constructed. The main coronary arteries and most important muscular branches are simulated by a wire skeleton. The model can be rotated to simulate the standard right and left anterior oblique and left lateral projections.

Percutaneous circle-tube nephroureterostomy.

A method for placement of a circle nephroureterostomy tube in patients with cutaneous ureterostomies is described. The technique requires local anesthesia only and, because the 16F tubes become incrusted less often in these patients than do ureteral stents, the tubes need to be changed only every 3 to 6 months.

Isolation of a subclavian artery.

Eight patients with isolation of a subclavian artery are described. Isolation of subclavian artery is defined as a loss of continuity between the subclavian artery and aorta but with persistent connection to the homolateral pulmonary artery through a ductus arteriosus. The connecting ductus arteriosus may or may not be patent.

The three types of criss-cross heart: a simple rotational anomaly.

Criss-cross heart is an angiographically confusing malformation where apparent crossing but not mixing of contrast medium is seen at atrioventricular level. The malformation can be understood by a clockwise or counter-clockwise ventricular rotation. In the normal heart or one with complete transposition ventricular rotation is clockwise.

Signs of membranous subaortic stenosis appearing after correction of persistent common atrioventricular canal.

Two cases are presented of persistent common atrioventricular (A-V) canal with interventricular communication in which associated membranous subaortic stenosis became apparent only after correction of the basic malformation and replacement of the mitral valve. The features of the membranous subaortic stenosis present only after operation were a left ventricular outflow pressure gradient and angiocardiographic demonstration of the membrane. In one case, additional echocardiograms demonstrated systolic flutter of the aortic cusps after the first operation (no echocardiograms were taken preoperatively).

Embolization of the spermatic vein for treatment of infertility: a new approach.

A new transjugular technique for spermatic venography and nonsurgical transcatheter occlusion of incompetent spermatic veins is described. With this technique, the left spermatic vein was easily catheterized in 28 of 30 patients examined, and in 21 patients the vein could be occluded. Right spermatic vein catheterization was attempted in 25 patients.

Radiographic scanning in barium examinations of the gastrointestinal tract.

The possibility of using radiographic scanning for gastrointestinal studies was evaluated experimentally. Two tubular barium-filled phantoms containing simulated ulcers and polyps were placed in a 25-cm water container, and radiographs made with the conventional technique and scanographic technique were compared. Images obtained with the radiographic scanner were superior in contrast and sharpness.

Syphilitic aneurysms of the innominate artery.

Syphilitic aortitis can cause formation of fusiform or saccular aneurysms of the ascending aorta or transverse arch. The authors report 3 cases in which a saccular aneurysm developed at the origin of the innominate artery and was seen as a mediastinal mass on the chest radiograph.

Selective opacification of arteries with balloon-occlusion angiography.

Selective catheterization of vessels for angiography in infants is often difficult. The authors describe the use of a balloon-tipped catheter to direct contrast material to a selected area; consequently, smaller volumes of contrast material are used than is usually required for conventional angiography. The angiograms obtained provide excellent anatomic visualization.

A combination of stainless steel coil and compressed Ivalon: a new technique for embolization of large arteries and arteriovenous fistulas.

The abdominal aortas in eight dogs were successfully occluded with a combination of stainless steel coils and compressed Ivalon (polyvinyl alcohol). There was no evidence of recanalization up to six months later. This combination is useful for the embolization of large arteries and arteriovenous fistulas.