نتایج جستجو برای: aortic ring

تعداد نتایج: 233385  

Journal: :Interactive cardiovascular and thoracic surgery 2013
Giuseppe Bruschi Federico De Marco Alberto Barosi Paola Colombo Luca Botta Sandra Nonini Luigi Martinelli Silvio Klugmann

OBJECTIVES Transcatheter aortic valve implantation has emerged as a valuable option to treat patients with symptomatic severe aortic stenosis, who are not being considered for surgery because of significant comorbidities. Concerns exist over treating patients who have previously undergone mitral valve surgery for possible interference between the percutaneous aortic valve and the mitral prosthe...

Journal: :European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery 2014
Domenico Mazzitelli Christian Nöbauer J Scott Rankin Catalin C Badiu Magdalena Dorfmeister Philip S Crooke Anke Wagner Christian Schreiber Rüdiger Lange

OBJECTIVES Surgery for aortic root aneurysm without valve stenosis is increasingly being transformed from the Bentall procedure to valve-sparing aortic root remodelling or reimplantation. In this report, a new repair option is explored, with full functional 'restoration' of the aortic root complex using a geometric annuloplasty ring, leaflet repair, and sinus/ascending aortic replacement with a...

Journal: :British heart journal 1987
R R Phillips L M Gerlis N Wilson D R Walker

Operative balloon dilatation of the aortic valve was performed in seven neonates with critical stenosis of the aortic valve. The procedure was followed by the development of severe aortic regurgitation in four patients. Necropsy was performed in three and revealed partial detachment of the right coronary cusp of the aortic valve. Damage to the valve leaflet caused by balloon dilatation was prob...

Journal: :Cardiovascular journal of Africa 2013
Chih-Hsien Lee Li-Wei Ko Yi-Chang Lin Chih-Chien Yen Hsiang-Yu Yang Chih-Hong Kao Chien-Sung Tsai Yi-Ting Tsai

Aortic intramural haematoma is similar to classic aortic dissection, which causes a life-threatening medical condition, and immediate diagnosis and treatment are crucial. The optimal therapy for intramural haematoma of the abdominal aorta remains controversial. Conservative medical management is usually the first choice of treatment for uncomplicated cases. Surgical intervention is usually requ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1379

‏‎for the first time nakayama introduced qf-ring. in 1967 carl. faith and elbert a. walker showed that r is qf-ring if and only if each injective right r-module is projective if and only if each injective left r-modules is projective. in 1987 s.k.jain and s.r.lopez-permouth proved that every ring homomorphic images of r has the property that each cyclic s-module is essentialy embeddable in dire...

Journal: :The Journal of thoracic and cardiovascular surgery 2009
Jeng Wei Chung-Yi Chang Yi-Cheng Chuang Sung-How Sue Kuo-Chen Lee David Tung

OBJECTIVE To improve the surgical results of aortic dissection, we used a novel vascular ring connector for anastomosis. METHODS The vascular ring connector is a titanic ring used as a stent in the vascular graft to achieve a quick, blood-sealed, and sutureless anastomosis. From November 2007 to December 2008, 19 consecutive patients (age range 36-77 years; 16 male and 3 female) with aortic d...

2005
WILLIAM C. ROBERTS

Analysis of 95 necropsy patients with active infective endocarditis (AIE) involving 128 native cardiac valves (aortic = 59, mitral = 48, tricuspid = 20, and pulmonic = 1) disclosed 27 patients with ring abscesses involving 30 valves: the aortic valve ring was infected in 24 patients and only an atrioventricular valve ring (mitral in two, and tricuspid in one) in three patients. Comparison of th...

Journal: :European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery 2006
Emmanuel Lansac Isabelle Di Centa Nicolas Bonnet Pascal Leprince Akthar Rama Christophe Acar Alain Pavie Iradj Gandjbakhch

OBJECTIVE Dilation of aortic annulus, sinuses of Valsalva, and sinotubular junction (STJ) diameters are the characteristic lesions of aortic root aneurysm. The remodeling technique reduces STJ diameter and creates three neosinuses of Valsalva. Alternatively, the reimplantation technique reduces both annulus and STJ diameters to the detriment of aortic root dynamics. Although the remodeling tech...

Journal: :European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery 2013
Jan Vojacek Jaroslav Spatenka Tomas Holubec Pavel Zacek

The Ross procedure is an alternative technique to mechanical prosthesis and recent evidence suggests that it is associated with improved long-term survival and quality of life. However, late pulmonary autograft failure can occur more frequently in patients with significant dilation of the aortic annulus. Here, we present a technical modification of the Ross procedure--a case report of a patient...

Congenital anomalies of the great thoracic vessels have been reported in 20% of dogs and cats. In some cases, the vascular ring anomalies remain unrecognized throughout the lifetime of an animal. This report describes a case with an unusual vascular ring anomaly (VRA) that was detected during dissection on a cadaver of an approximately two-year-old male native mixed breed dog. No history of the...

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