Nature of the problem Many congenital cardiac malformations result in a heart with only one effective ventricle. In most of these there is a second ventricle present, but it is too small to sustain cardiac output making construction of a biventricular circulation impossible. These hearts may be classified according to the atrioven-tricular connection. There are two possibilities: the atria are ...

A case of a previously unreported anomaly is presented in which absence of the aortic valve cusps, mitral atresia, a normal left ventricle, and an intact ventricular septum were diagnosed by cross sectional echocardiography. The development of a normal left ventricle, rather than the hypoplastic ventricle usually associated with mitral atresia, is explained by filling of the ventricular cavity ...

The evolution of myocardial infarction 24 hours after ligating both the right coronary artery and the obtuse marginal branch of the left circumflex coronary artery was examined in 33 anesthetized dogs. Postmortem coronary angiography and a tracer microsphere technique were used to determine risk areas and their collateral blood flows, respectively. The mean weight of the risk areas was 11.3 +/-...

Fifty-seven cases of single (common) ventricle with transposition of the great vessels are reviewed. The diagnosis had been confirmed by necropsy in 25 and by angiocardiography in 32 cases. Single (common) ventricle is defined as that condition in which both atrioventricular valves separately enter a single ventricular cavity. According to this definition, cases presenting with common atriovent...

A case, the sixth, ofdouble outlet left ventricle is reported, the diagnosis being made by cardiac catheterization and angiocardiography. Though the existence of such a malformation has been questioned on embryologicalgrounds, double outlet left ventricle must now be regarded as a recognized cardiac anomaly. The embryological significance of this case is discussed and it is suggested that the m...

Single ventricle heart is defined as a rare cardiac abnormality with a single ventricle chamber involving diverse functional and physiological defects. Our case is of a ten month-old baby boy who died shortly after admission to the hospital due to vomiting and diarrhoea. Autopsy findings revealed cyanosis of finger nails and ears. Internal examination revealed; large heart, weighing 60 grams, s...

In a previous study the possibility that tetralogy of Fallot and transposition of the great arteries may arise as a result of embryonic arrests in the normal rotation of the junction of the outflow tract and the great arteries was investigated. The results suggested that the development of other transposition complexes such as double-outlet right ventricle might also be related to arrests in th...

background & importance: idiopathic stenosis of the foramina of magendie and luschka is a rare cause of obstructive hydrocephalus involving the fourth ventricle. case presentation: we reported the case of a 40-year-old woman who developed headaches and vertigo for several months and more recently gait disturbance. the ct scan showed quadri-ventricular hydrocephalus involving mainly the fourth v...