Patent ductus arteriosus (PDA), defined as an arterial connection between the pulmonary artery and the aorta, is a common congenital cardiac defect. The connection can be closed surgically or by transcatheter methods. The overall incidence of PDA in infants born prematurely is about 16 times higher than that in full term infants. Preterm infants with symptomatic heart failure secondary to persi...

• The study of pulmonary hypertension has been limited by lack of suitable means for producing chronic pulmonary hypertension in animals. Attempts to produce pulmonary hypertension in adult dogs, cats, and sheep by means of pneumoneetomy, hyposia, unilateral pulmonary artery ligation,' and repeated embolization, have resulted in only transient and inconsistent rises in pulmonary arterial pressu...

The remarkable success that has attended surgical ligation of the patent ductus arteriosus has aroused a new interest in a unique structure and has been the means of revealing striking gaps in our knowledge -of a comparatively common form of congenital heart disease. Unexpectedly, ligation of the infected ductus has shed a new light on the most serious of all forms of heart disease-bacterial en...

Hemodialysis access creation is one of the most commonly performed operations in peripheral vascular surgery. Minimal shunt volume flow rates in adult patients with antilogous shunts range between 300 and 500 ml /min are adequate for dialysis purposes and maintain the patency of the fistula. With an inappropriately high shunt flow, cardiac complications from volume overload and dialysis access-...

Background The ligation of the patent processus vaginalis (PPV) is the challenging issue during the orchidopexy in the patients who suffering undescended testis (UDT). In the present study we aimed to comparing the advantages of the orchidopexy with high-ligation method and the san-ligation method as a modified orchidopexy in our more than 6 years` experiences. Materials and Methods The medical...

The endothelial cytoskeleton plays a key role in arterial responses to acute changes in shear stress. We evaluated whether the intermediate filament protein vimentin is involved in the structural responses of arteries to chronic changes in blood flow (BF). In wild-type mice (V+/+) and in vimentin-deficient mice (V-/-), the left common carotid artery (LCA) was ligated near its bifurcation, and 4...

Hand ischemia is a rare complication of angioaccess surgery for hemodialysis. Management usually requires ligation of the arteriovenous fistula (AVF). The purpose of this report is to describe our experience with the use of the distal revascularization interval-ligation (DRIL) technique for treatment of ischemia without ligation of the AVF. From January 1999 to September 2002, the DRIL techniqu...

This study was designed to better understand how women in a developing region choose between the multiple options available to them for birthing. We conducted focused, open-ended ethnographic interviews with 38 nonindigenous, economically marginal women in Chiapas, Mexico. We found that although medical services for birthing were readily available to them, these women most often chose tradition...

RECENT reports have indicated that anomalous coronary arteries originating from the pulmonary artery may act as a channel for left-to-right shunt.1-4 Thus a large portion of the coronary blood flow may bypass the coronary capillary bed, pass through arterial anastomoses, and enter directly into the pulmonary artery by retrograde flow through the anomalous coronary with resultant myocardial isch...