نتایج جستجو برای: aortic regurgitation

تعداد نتایج: 122804  

Journal: :British heart journal 1989
S O Samstad L Hegrenaes T Skjaerpe L Hatle

Thirty four patients with aortic regurgitation were studied by continuous wave Doppler ultrasound. In 30 of these the regurgitation was graded by cineangiography as mild, moderate, or severe and in four severe regurgitation was confirmed at operation. The half times of the aortoventricular pressure differences obtained with Doppler compared well with those obtained from pressure recordings at c...

2005
Raffi Bekeredjian

Aortic regurgitation (AR) is characterized by diastolic reflux of blood from the aorta into the left ventricle (LV). Acute AR typically causes severe pulmonary edema and hypotension and is a surgical emergency. Chronic severe AR causes combined LV volume and pressure overload. It is accompanied by systolic hypertension and wide pulse pressure, which account for peripheral physical findings, suc...

2012
Ju Yong Lim Joon Bum Kim Sung-Ho Jung Suk Jung Choo Cheol Hyun Chung Jae Won Lee

BACKGROUND Although the aortic valve-sparing procedure has gained popularity in recent years, it still remains challenging in patients with advanced aortic regurgitation (AR). We compared the long-term outcomes of the aortic valve-sparing procedure with the Bentall operation in patients with advanced aortic regurgitation secondary to aortic root dilatation. MATERIALS AND METHODS A retrospecti...

Journal: :Cardiovascular Ultrasound 2006
Magnus Dencker Martin Stagmo

BACKGROUND Quadricuspid aortic valve is a rare congenital heart defect. Several different anatomical variations of a quadricuspid aortic valve has been described and aortic regurgitation is the predominant valvular dysfunction associated with quadricuspid aortic valve. CASE PRESENTATION A 68-year-old woman presented with almost a years history of increasing dyspnoea on exertion. The patient h...

2017
Toshinobu Yamagishi Masahiro Kashiura Kazuya Nakata Kazuki Miyazaki Takahiro Yukawa Takahiro Tanabe Kazuhiro Sugiyama Akiko Akashi Yuichi Hamabe

Case Sometimes it is difficult to diagnose circumferential aortic dissection with enhanced computed tomography alone. A 58-year-old woman presented with sudden-onset chest discomfort and loss of consciousness. Transthoracic echocardiogram showed mild aortic regurgitation. Enhanced computed tomography scans showed no obvious intimal tear or flap at the proximal ascending aorta, but an intimal fl...

Journal: :European heart journal 2010
Victoria Delgado Arnold C T Ng Nico R van de Veire Frank van der Kley Joanne D Schuijf Laurens F Tops Arend de Weger Giuseppe Tavilla Albert de Roos Lucia J Kroft Martin J Schalij Jeroen J Bax

AIMS Aortic regurgitation after transcatheter aortic valve implantation (TAVI) is one of the most frequent complications. However, the underlying mechanisms of this complication remain unclear. The present evaluation studied the anatomic and morphological features of the aortic valve annulus that may predict aortic regurgitation after TAVI. METHODS AND RESULTS In 53 patients with severe aorti...

2013
Akhlaque Uddin Timothy Fairbairn Christopher D Steadman Bernhard A Herzog Manish Motwani Ananth Kidambi Dominik Schlosshan Daniel Blackman Gerry P McCann Sven Plein John P Greenwood

Background Transcatheter Aortic Valve Implantation (TAVI) is increasingly used to treat patients with severe aortic stenosis at high surgical risk. The severity of post-implantation valvular or paravalvular regurgitation has been shown to adversely affect patient outcome. The aim of the study was to assess the prevalence and severity of aortic regurgitation (AR) at 6 months post-TAVI using card...

Journal: :Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia 2010
Takehito Mishima Kazuo Yamamoto Tsutomu Sugimoto Kenji Sakakibara Akifumi Uehara Shinpei Yoshii

Aortic regurgitation is occasionally caused by fibrous strands and more rarely by downward displacement of the aortic annulus. The present report describes an 18-year-old man with aortic regurgitation resulting from an anterior-posterior type of bicuspid aortic valve with fibrous strands and downward displacement of the anterior aortic annulus. A pair of fibrous strands at the anterior cusp of ...

2006
Lena Forsberg

....................................................................................................... 1 POPULÄRVETENSKAPLIG SAMMANFATTNING ................................. 3 LIST OF ORIGINAL PAPERS ........................................................................ 5 ABBREVIATIONS ............................................................................................. 6 INTRODUCTIO...

Journal: :British heart journal 1981
R Thompson I Ross R Elmes

Fifty patients with aortic and/or mitral regurgitation underwent gated pool imaging and cardiac catheterisation to quantify the severity of valvar regurgitation. Gated pool imaging was performed in the left anterior oblique projection and an estimate of regurgitant fraction derived by comparison of the left ventricular to right ventricular stroke volume expressed as a ratio. In 17 normal subjec...

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