Ad
related to: balloon instead of stent surgery
Search results
Results From The WOW.Com Content Network
The initial form of angioplasty was 'plain old balloon angioplasty' without stenting, until the invention of bare metal stents in the mid-1980s to prevent the abrupt closure that sometimes occurred plain old balloon angioplasty. [1] Bare metal stents were found to cause in-stent restenosis as a result of neointimal hyperplasia and stent ...
Aortic valvuloplasty, also known as balloon aortic valvuloplasty (BAV), is a procedure used to improve blood flow through the aortic valve in conditions that cause aortic stenosis, or narrowing of the aortic valve. It can be performed in various patient populations including fetuses, newborns, children, adults, and pregnant women.
Balloon angioplasty is the inflation of a balloon (often part of an integrated medical device combining a balloon, guidewire, and stent) within the coronary artery to 'crush' the plaque causing the occlusion into the walls of the artery. Balloon angioplasty is still often performed as a part of PCI procedure, it is rarely the only activity ...
Stent technology improved rapidly, and in 1989 the Palmaz-Schatz balloon-expandable intracoronary stent was developed. [24] [25] Initial results with the Palmaz-Schatz stents were excellent when compared to balloon angioplasty, with a significantly lower incidence of abrupt closure and peri-procedure heart attack. [26]
The balloon is subsequently expanded, compressing the accumulated plaque to allow increased blood flow. This was a substantial improvement over bypass surgery in terms of invasiveness, but unfortunately restenosis, a recurrence of arterial clogging, occurred in nearly 50% of patients after the balloon was removed.
This procedure is different from Rotoblation (Percutaneous Transluminal Rotational Atherectomy or PCRA) whereby a diamond tipped device spins at high revolutions to cut away calcific (chalky) atheroma usually prior to coronary stenting. Boston Scientific's Flextome is the most widely used cutting balloon.
Balloon pulmonary angioplasty (BPA) is an emerging minimally invasive procedure to treat chronic thromboembolic pulmonary hypertension (CTEPH) in people who are not suitable for pulmonary thromboendarterectomy (PTE) or still have residual pulmonary hypertension and areas of narrowing in the pulmonary arterial tree following previous PTE.
Since the later 1990s, most angioplasties also involve a stent over the angioplasty balloon; the balloon is hydraulically expanded, typically at 6–25 atmospheres of internal pressure, then deflated and removed while the stent remains behind to mechanically support the lumen remaining in the new, more open shape as created by the hydraulically ...