BACKGROUND AND OBJECTIVES Trans-stenotic pressure gradient across the constriction (PG), a hemodynamic variable of atheromatous renal artery stenosis (ARAS), is a widely used indicator for angioplasty, but its association with the outcome of angioplasty has not been fully investigated. DESIGN, SETTING, PARTICIPANTS & MEASUREMENTS In 34 hypertensive cases with unilateral ARAS, we evaluated hem...

The relative safety and thrombogenicity of pulsed excimer and thermal laser angioplasty systems were compared in 20 normal coronary artery segments in a total of seven pigs. Using similar over the wire catheter systems and laser delivery periods of 3 to 5 s, thermal laser angioplasty was achieved with a 1.3 mm metal probe heated with 10 W of continuous argon laser energy and excimer laser angio...

BACKGROUND Intracranial atherosclerosis accounts for 8% to 10% of all ischemic strokes, and intracranial angioplasty is increasingly performed to treat stenotic lesions. We report an autopsy case and discuss the effects of intracranial angioplasty for atherosclerotic arteries. CASE DESCRIPTION A 77-year-old patient died 9 days after angioplasty of the left middle cerebral artery as a result o...

transluminal coronary angioplasty (PTCA) was developed 12 years ago, it was seen as a limited technique applicable to no more than 5% to 10% of the patients undergoing coronary bypass surgery. However. over the last 5 years improvements in angioplasty equipment and technique have allowed balloon angioplasty to expand to the point where more than 200,000 coronary angioplasties were performed in ...

Review of the MEDLINE, Embase, Web Science, and Cochrane databases through February 1, 2021. There were 1348 patients from 14 eligible studies (10 prospective, randomized; 4 retrospective) with femoropopliteal artery in-stent restenosis (FP-ISR) who underwent plain old balloon angioplasty (POBA), drug-coated (DCBA), peripheral cutting angioplasty, Viabahn endoprosthesis, directional atherectomy...

background: c linical trials of revascularization have routinely under-enrolled elderly subjects. thus, symptom relief and improved survival might not apply to elderly patients, in whom the risk of mortality and disability from revascularization procedures seems to be high and co-morbidity is more prevalent. the present case control study was performed to draw a comparison in terms of the proce...

Balloon dilatation angioplasty was successfully performed in five patients (ages 18 months to 17 years) with discrete aortic coarctation. The catheter size was No. 8F or 9F. Selection of balloon diameter was based on angiographic measurements of the aorta determined proximal and distal to the coarctation site. A 10 sec inflation-deflation cycle at 6 to 8 atmospheres (90 to 120 psi) was performe...

BACKGROUND An inverse relation exists between the number of coronary angioplasty procedures performed by physicians or hospitals and short-term mortality. It is not known, however, whether a similar relation holds for physicians and hospitals that perform primary angioplasty for acute myocardial infarction. METHODS AND RESULTS We analyzed data from the 1995 New York State Coronary Angioplasty...

R estenosis is a significant limitation of catheter-based treatment of coronary artery disease. Early in the development of balloon angioplasty, restenosis was quite common, occurring in 30% to 40% of patients (1). Following successful angioplasty, patients who had become symptomfree developed the same symptoms they had experienced prior to the intervention. Repeat angiography demonstrated a re...

Transluminal angioplasty of brachiocephalic vessels for atherosclerotic lesions is now being performed in selected cases. We have thus far treated 17 cases of vertebral artery stenosis and one case of basilar artery stenosis by intravascular balloon dilatation techniques. Clinical presenting symptoms included vertebral basilar insufficiency, repeated transient ischemic attacks (TIAs), and multi...