نتایج جستجو برای: pump failure

تعداد نتایج: 431259  

Journal: :acta medica iranica 0
seyed jalil mirhosseini department of cardiovascular surgery, afshar hospital, shahid sadoughi university of medical sciences, yazd, iran. seyed khalil forouzannia department of cardiovascular surgery, afshar hospital, shahid sadoughi university of medical sciences, yazd, iran. ali hassan sayegh medical student and researcher of cardiac surgery, shahid sadoughi university of medical sciences, yazd, iran. mehdi sanatkar department of cardiovascular surgery, imam khomeini hospital, tehran university of medical sciences, tehran, iran.

atrial fibrillation (af) is the most common arrhythmia after cardiothoracic surgery. af following coronary artery bypass graft (cabg) is associated with an increase in morbidity, mortality, hemodynamic instability, thromboembolic events, severity of heart failure and icu and hospital stay. corticosteroids have a variety of beneficial effects on recovery after elective surgery. this study was de...

Journal: :Journal of Marine Science and Engineering 2023

The piston pump is the significant source of motive force in a hydraulic transmission system. Owing to changeable working conditions and complex structural characteristics, multiple friction pairs are prone wear failure. An accurate fault diagnosis method crucial guarantee for system reliability. Deep learning provides great insight into intelligent exploration machinery diagnosis. Hyperparamet...

Journal: :The Journal of physiology 2007
S Modi A W B Stanton W E Svensson A M Peters P S Mortimer J R Levick

Axillary surgery for breast cancer partially obstructs lymph outflow from the arm, chronically raising the lymphatic smooth muscle afterload. This may lead to pump failure, as in hypertensive cardiac failure, and could explain features of breast cancer treatment-related lymphoedema (BCRL) such as its delayed onset. A new method was developed to measure human lymphatic contractility non-invasive...

2005
Chyuan-Yow Tseng Chiu-Feng Lin

Possible faults existing in electronic diesel fuel injection control (EDC) systems include rack deformation, solenoid valve failure, and rack-travel sensor malfunction. Among these problems, the solenoid failure is the most likely to occur for in-use diesel engines. This paper focuses on developing the algorithm that can clearly classify the usability of a solenoid valve without disassembling t...

Journal: :Postgraduate medical journal 1990
J W Dean P A Poole-Wilson

The idea that diastolic dysfunction may give rise to symptoms of cardiac disease independent of any impairment of systolic function is not new, and was appreciated centuries ago.2 Traditional definitions of heart failure have focused on abnormalities of systolic or pump function ofthe heart, emphasizing the failure of cardiac output to meet the metabolic requirements of the body at peak workloa...

Journal: :The Journal of thoracic and cardiovascular surgery 2011
Damien J LaPar Castigliano M Bhamidipati T Brett Reece Joseph C Cleveland Irving L Kron Gorav Ailawadi

OBJECTIVE Selected patients appear to benefit from off-pump coronary artery bypass compared with conventional coronary artery bypass with cardiopulmonary bypass. It is unknown whether elderly patients undergoing isolated coronary artery bypass grafting operations derive any benefit when performed off-pump. We hypothesized that off-pump coronary bypass offers a greater operative benefit to elder...

2017
Md. Raquibul Hasan

This paper presents an investigation report of different components failure which affect the performance of an automobile engine. The premature breakage of a four cylinder diesel engine block, crankshaft, camshaft, crankshaft bearing, camshaft bush, engine oil pump was reported. It is found that the failure of each component having the same reason for its failure as reported from different plac...

2012
Yasser Awaad Tamer Rizk Iram Siddiqui Norbert Roosen Kelly Mcintosh G. Michael Waines

Increasingly, spasticity is managed with surgically implanted Intrathecal Baclofen pumps. Intrathecal Baclofen pump revision surgery unrelated to programmable pump end-of-life is not uncommon, requiring special attention during pre-, intra-, and postoperative management. We aimed to identify and describe complications of Intrathecal Baclofen pump as well as to report avoidance and management of...

Journal: :Italian heart journal. Supplement : official journal of the Italian Federation of Cardiology 2001
H Ector

BACKGROUND The independent prognostic value of elevated jugular venous pressure or a third heart sound in patients with heart failure is not well established. METHODS We performed a retrospective analysis of the Studies of Left Ventricular Dysfunction treatment trial, in which 2569 patients with symptomatic heart failure or a history of it were randomly assigned to receive enalapril or placeb...

1968
Qing Wang Ai Ying Xiao Christian Sheline Krzystztof Hyrc Aizhen Yang Mark P. Goldberg Dennis W. Choi Shan Ping Yu

pump) acts as an electrogenic ion transporter in the plasma membrane of all mammalian cells, each cycle of Na + , K +-pump activity extrudes three Na + ions from the cell, moves two K + ions into the cell and uses 1 ATP (Rakowski et al., 1989). The primary role of the Na + , K +-pump is therefore to maintain high intracellular K + and low intracellular Na +. Failure of the Na + , K +-pump resul...

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