A classification with clinical significance is proposed for ventricular septal defect based on the study of 220 hearts with defects of the ventricular septum. All had atrioventricular and ventriculoarterial concordance with normal relations of cardiac structure. For the purpose of classification, the ventricular septum was considered as possessing muscular and membranous portions, the muscular ...

today, with emphasis on the mechanical heart and heart transplantation from one human to another andone species to another, a knowledge of the anatomy of the bird’s heart could contribute to theseaccomplishments. eight male adult ostriches were used to study the heart macroscopically. this studyrevealed that the ostrich heart has some different features from the other birds. in the ostrich, fib...

Today, with emphasis on the mechanical heart and heart transplantation from one human to another andone species to another, a knowledge of the anatomy of the bird’s heart could contribute to theseaccomplishments. Eight male adult ostriches were used to study the heart macroscopically. This studyrevealed that the ostrich heart has some different features from the other birds. In the ostrich, fib...

The muscular ventricular septum separates the flow of oxygenated and de-oxygenated blood in air-breathing vertebrates. Defects within it, termed muscular ventricular septal defects (VSDs), are common, yet less is known about how they arise than rarer heart defects. Mutations of the cardiac transcription factor NKX2-5 cause cardiac malformations, including muscular VSDs. We describe here a genet...

background there are two main surgical approaches, simple ulnar nerve decompression at the elbow, and anterior transposition of the nerve in treatment of cubital tunnel syndrome. both techniques were reported in literature in details with similar reported success rates. here, we present a modified simple de-compression surgical technique in treatment of cubital tunnel syndrome. methods fifty ei...

1900 years ago Galen stated that blood seeps through the perforations in the interventricular septum. However, William Harvey, working 400 years ago, failed to find any. In this study an aqueous solution of a black dye was gently pumped by hand into the right ventricle of 20 porcine hearts. The area in the middle ofthe left muscular part of the interventricular septum in 13 of the hearts was bl...

Background. The mechanics involved in development of the inlet component of the morphologically right ventricle are, as yet, undecided. Some argue that this component is derived from the descending limb of the ventricular loop, and that the inlet and apical trabecular components of the muscular ventricular septum have separate developmental origins. Others state that the entirety of the right v...

Zenker’s diverticulum is a rare disease occurring in less than 0.5% of the global population. Currently, the diverticuloscope-assisted diverticulotomy represents the traditional procedure, the diverticuloscope enabling better exposure of the muscular fibers. Although effective and safer than surgery, this technique could be complicated by perforation, which is reported in as many as 6.5 % of pa...

The objective of this study was to establish a dependable technique for imaging the interventricular septum and ventricular septal defects in infants. Subxiphoid two-dimensional echocardiograms were performed on 81 infants who were 1 day to 12 months (median 43 days) old and weighed 1.6-8.6 kg (median 3.4 kg). A short-focus, 5-MHz crystal with a 13-mm active element diameter was used in all stu...