Based on some stationary periodic solutions and stationary soliton solutions, one studies the general solution for the relative lax system, and a number of exact solutions to the Korteweg-de Vries (KdV) equation are first constructed by the known Darboux transformation, these solutions include double and triple singular periodic solutions as well as singular soliton solutions whose amplitude d...

introduction fungal prosthetic valve endocarditis (pve) is rare but serious complication of valve replacement surgery. candida species, particularly candida albicans is the most common isolated pathogen in fungal pve (1–6%of cases). case presentation we describe a 35-year-old woman who underwent mechanical mitral valve replacement about 3 years ago. she was admitted with neurological symptoms a...

Mitral valve replacement (MVR) is usually performed in two methods of running and interrupted suturing. In running method, the suturing of the valve is usually with some traction on the annulus and also there is a risk of aortic valve injury. This study was conducted to evaluate a new technique for suturing to avoid these complications and decrease the time of cardiac arrest. One hundred an...

transcatheter aortic valve replacement (tavr) is a novel therapeutic intervention for the replacement of severely stenotic aortic valves in high-risk patients for standard surgical procedures. since the initial partner trial results, use of tavr has been on the rise each year. new delivery methods and different valves have been developed and modified in order to promote the minimally invasive p...

conclusions high risk patients needing avr are optimal candidates for transcatheter aortic valve implantation. tavi is a valuable solution for high risk patients needing avr. obtained results are comparable to results in transthoracic avr in standard candidates for aortic valve implantation. background transcatheter aortic valve implantation (tavi) has emerged as an alternative treatment to cla...

Background: One of the most important post-operation problems encountered with Hepaticojejunostomy (Kasai operation) in patients with biliary atresia is cholangitis. The aim of this study was to evaluate the efficiency of anti-reflux valve in decreasing the incidence of cholangitis after hepaticojejunostomy. Methods: Ten dogs were randomly divided into two groups of equal size. In group A Roux-...

Classic anti reflux procedures on children with a history of posterior urethral valve does not usually yield good results and often ends up with ureteral obstruction and even permanent urinary diversion. From 1981 through 1988,21 boys with history of posterior urethral valve (PUV) underwent evaluation for vesicoureteral (VU) reflux 17 boys had VU reflux. Following valve ablation, reflux di...

Background: Primary intra cardiac tumors are rare. In this article, we present papillary fibroelastoma of mitral valve chordae. Case Presentation: A 35-year old man presented with atypical chest pain and palpitation. Physical examination and electrocardiogram were normal. Transesophageal echocardiography (TEE) revealed a mass of 1015 mm attached to chordae of anteromedial papillary muscle of ...