This study aimed to determine the effective doses of cardiologist, nurses, and technical staff in pediatric angiography laboratory during their diagnostic therapeutic applications. also compares radiation dose applications performed country with exposed on a world scale. A total 39 coronary (CA) + percutaneous transluminal angioplasty (PTCA) methods were study. The received for each person sing...

Ten serial pathological cross sections at 1 mm intervals of both the left anterior descending artery at the site of a percutaneous transluminal coronary angioplasty and of the circumflex artery in the untreated stenotic area were studied at necropsy in a patient who died immediately after the procedure. The extent of calcification and atheroma were similar in both branches. Intimal or medial sp...

Percutaneous transluminal angioplasty was used to treat atherosclerotic lesions in 22 brachiocephalic arteries in 20 patients during a 2 1/2 year period. Seven subclavian, 13 vertebral, one external carotid, and one common carotid arteries were involved. Nineteen arteries were successfully dilated, but dilatation of two vertebral arteries and attempted recanalization of one subclavian artery fa...

Minimally invasive surgery started spreading worldwide in 1987, when the first laparoscopic cholecystectomy was performed. Meanwhile, improvement of endoscopic equipment and instruments allowed gastroenterologists to attempt more aggressive endoluminal interventions, even beyond the wall barrier. The first transgastric peritoneoscopy, in 2004, brought to light the concept of natural orifice tra...

Five children with renovascular hypertension were treated with percutaneous transluminal angioplasty, and followed for 12 to 32 months. Blood pressure fell to normal in four patients and improved in one. Angiographic and endocrinological improvements were associated with a fall in blood pressure and no complications were observed. Angioplasty is considered a safe, effective treatment for childr...

To determine if there is release of endothelial cells or plaque contents after percutaneous transluminal angioplasty, effluent from atherosclerotic segments of the aorta and iliac arteries of rabbits were collected before and after angioplasty. No endothelial cells or cholesterol plates were identified in the preangioplasty effluents. Only a few single endothelial cells and cholesterol crystals...

Background. The local effect of coronary angioplasty is evaluated on the basis of postangioplasty angiograms. Smooth-walled dilation is considered to represent minimal or no injury, whereas intraluminal haziness corresponds with wall laceration. This study correlates the preangioplasty and postangioplasty angiograms with the histopathology of the target sites. Methods and Results. The study inc...

Background. Several studies suggest that repeated percutaneous transluminal coronary angioplasty procedures at the same site are associated with a progressively increasing risk of further restenosis and that short time intervals between successive procedures are predictive of future restenoses. Methods and Results. We assessed by quantitative coronary angiography the angiographic probability of...

To investigate the feasibility of angioscopic-guided percutaneous transluminal coronary angioplasty and to elucidate the mechanism of efficacy of coronary stenting for acute myocardial infarction, we performed coronary angioscopy in 102 patients with stable angina or acute myocardial infarction. Thrombi and intimal flaps were observed in most patients after coronary angioplasty. Large intimal s...