نتایج جستجو برای: rv

تعداد نتایج: 8365  

Journal: :Journal of the American College of Cardiology 2012
Andrew D M Grant Nicholas G Smedira Randall C Starling Thomas H Marwick

OBJECTIVES This study sought to determine the utility of quantitation of right ventricular (RV) function in predicting RV failure in patients undergoing left ventricular assist device (LVAD) implantation. BACKGROUND Clinical evaluation alone seems insufficient for predicting RV failure, an important cause of morbidity and mortality after LVAD implantation. METHODS Clinical, hemodynamic, and...

Journal: :Cardiovascular research 2017
Cathelijne E E van der Bruggen Ryan J Tedford Martin Louis Handoko Jolanda van der Velden Frances S de Man

In pulmonary arterial hypertension (PAH), right ventricular (RV) adaptation is essential to overcome the chronic increases in RV pressure overload. Ultimately, RV compensatory mechanisms are not sufficient and patients succumb to RV failure. The processes underlying the transition of RV adaptation to RV failure are not well understood. In this review, we propose that important insights in RV ad...

2017
Min Jae Yang Jin Hong Kim Jae Chul Hwang Byung Moo Yoo Soon Sun Kim Sun Gyo Lim Je Hwan Won

The rendezvous approach is a salvage technique after failure of endoscopic retrograde cholangiography (ERC). In certain circumstances, percutaneous-endoscopic rendezvous (PE-RV) is preferred, and endoscopic ultrasound-guided rendezvous (EUS-RV) is difficult to perform. We aimed to evaluate PE-RV outcomes, describe the PE-RV techniques, and identify potential indications for PE-RV over EUS-RV.Re...

Journal: :Circulation journal : official journal of the Japanese Circulation Society 2013
Yoshiki Motoji Hidekazu Tanaka Yuko Fukuda Keiko Ryo Noriaki Emoto Hiroya Kawai Ken-ichi Hirata

BACKGROUND The development of right ventricular (RV) dysfunction in pulmonary hypertension (PH) patients is associated with adverse outcome, so that the assessment of RV function has become increasingly important in the management of such patients. The present objective was to test the hypothesis that RV free-wall longitudinal speckle-tracking strain (RV-free), an independent echocardiographic ...

Journal: :Circulation. Cardiovascular imaging 2017
Jan Janoušek Jan Kovanda Miroslav Ložek Viktor Tomek Pavel Vojtovič Roman Gebauer Peter Kubuš Miroslav Krejčíř Joost Lumens Tammo Delhaas Frits Prinzen

BACKGROUND Electromechanical discoordination may contribute to long-term pulmonary right ventricular (RV) dysfunction in patients after surgery for congenital heart disease. We sought to evaluate changes in RV function after temporary RV cardiac resynchronization therapy. METHODS AND RESULTS Twenty-five patients aged median 12.0 years after repair of tetralogy of Fallot and similar lesions we...

2016
Zainab Ali Houda Harastani Moza Hammadi Lina Reslan Soha Ghanem Farah Hajar Ahmad Sabra Amjad Haidar Adlette Inati Mariam Rajab Hassan Fakhouri Bassam Ghanem Ghassan Baasiri Bernard Gerbaka Hassan Zaraket Ghassan M. Matar Ghassan Dbaibo

INTRODUCTION Globally, rotavirus (RV) is the leading cause of gastroenteritis (GE) in children. Longitudinal data about changes in RV genotype distribution and vaccine effectiveness (VE) are scarce. This study was conducted in Lebanon over 3 consecutive RV seasons to estimate the rate of RVGE hospitalization, identify RV genotypes, determine the seasonal and geographical variations, and calcula...

2017
Haleh Ganjian Christin Zietz Diana Mechtcheriakova Dieter Blaas Renate Fuchs

Of the more than 150 human rhinovirus (RV) serotypes, 89 utilize intercellular adhesion molecule-1 (ICAM-1) for cell entry. These belong either to species A or B. We recently demonstrated that RV-B14 and RV-A89, despite binding this same receptor, are routed into distinct endosomal compartments for release of their RNA into the cytosol. To gain insight into the underlying mechanism we now compa...

Journal: :Circulation 2017
Navin K Kapur Michele L Esposito Yousef Bader Kevin J Morine Michael S Kiernan Duc Thinh Pham Daniel Burkhoff

Right ventricular (RV) failure remains a major cause of global morbidity and mortality for patients with advanced heart failure, pulmonary hypertension, or acute myocardial infarction and after major cardiac surgery. Over the past 2 decades, percutaneously delivered acute mechanical circulatory support pumps specifically designed to support RV failure have been introduced into clinical practice...

Journal: :Circulation. Cardiovascular imaging 2015
Oliver J Rider Andrew J M Lewis Adam J Lewandowski Ntobeko Ntusi Richard Nethononda Steffen E Petersen Jane M Francis Alex Pitcher Rajarshi Banerjee Paul Leeson Stefan Neubauer

BACKGROUND As right ventricular (RV) remodeling in obesity remains underinvestigated, and the impact of left ventricular (LV) diastolic dysfunction on RV hypertrophy is unknown, we aimed to investigate whether (1) sex-specific patterns of RV remodeling exist in obesity and (2) LV diastolic dysfunction in obesity is related to RV hypertrophy. METHODS AND RESULTS Seven hundred thirty-nine subje...

2007
Leo G. Kevin Matthew Barnard

Whilst failure of the left ventricle (LV) has been the subject of intense interest for decades, failure of the right ventricle (RV) has tended to receive scant attention. Indeed, the RV was long considered a relatively passive conduit for blood flow between the systemic and pulmonary circulations. More recently, the importance of the RV in maintaining haemodynamic stability and organ function h...

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