نتایج جستجو برای: ventricular tissue

تعداد نتایج: 1053699  

Journal: :Human pathology 1992
P Gallo G d'Amati F Pelliccia

Arrhythmogenic right ventricular cardiomyopathy (also known as arrhythmogenic right ventricular dysplasia) is characterized by adipose or fibroadipose tissue replacement of the right ventricular myocardium, whereas the left ventricle is substantively spared. Two cases of the disease with evidence of extensive left ventricular involvement at pathologic examination are described. Hearts from two ...

2016

Submit Manuscript | http://medcraveonline.com Abbreviations: AV: Atrio-Ventricular; AVD: Atrio-Ventricular Delay; AVI: Atrio-Ventricular Interval; CO: Cardiac Output; CRT: Cardiac Resynchronization Therapy; DDD: Dual Chamber Pacemaker with Dual Pacing-Dual Sensing-Dual Response to Heart Rate; ECG: Electrocardiogram; EF: Ejection Fraction; IQR: Interquartile Range; LA: Left Atrium; LAP: Left Atr...

Journal: :Circulation research 1965
E N MOORE J B PRESTON G K MOE

• The relationship between the functional refractory periods of the specialized cardiac conduction system and of the ventricular muscle is of major importance in the genesis of ventricular fibrillation by a single premature beat arising in the specialized conducting system. Wiggers and Wegria demonstrated that premature ventricular excitation must occur in late systole during the inscription of...

Journal: یافته 2005
fereidon Sabzi , hasan Teimori ,

Background: It has not been yet developed a ost suitable method to treat right ventricular failure due to pulmonar artery hypertention resulted from ventricular arrhythia. Though some case reports about patients ready to heart transplant using left assist device or biventral assist device as bridge have been published in Journals, but nocase concerning application of centrifugal pump for treatm...

Journal: :The European respiratory journal 2007
S Huez F Roufosse J-L Vachiéry A Pavelescu G Derumeaux J-C Wautrecht E Cogan R Naeije

Right ventricular function is frequently abnormal in patients with systemic sclerosis, but whether this is related to pulmonary vascular complications of the disease is unclear. Standard echocardiography with tissue Doppler imaging was performed at rest and during exercise for the study of right ventricular function and pulmonary circulation in 25 consecutive systemic sclerosis patients and in ...

باقری, بابک, دبیریان, مژده, درویشی خضری, هادی, مشتاقیان, شوکت, نباتی, مریم, گلشنی, صمد,

Background and purpose: Acceleration of diastolic filling in athletes is higher than healthy people and athletes' morphologic changes and cardiac function is controversial. This study aimed to compare the indices of left ventricular systolic and diastolic function between healthy isometric and isotonic athletes and non-athlete healthy individuals. Materials and methods: A case-control study ...

This study intended to assess the efficacy of acute administration of natural honey on cardiac arrhythmias and infarct size when it is used during the normothermic ischemia in isolated rat heart. During 30 min of regional normothermic ischemia followed by 120 min of reperfusion, the isolated hearts were perfused by a modified drug free Krebs-Henseleit solution (control) or the solution containi...

2010
Nitisha Hiranandani George E. Billman Paul M. L. Janssen

UNLABELLED Despite the widespread use of ventricular tissue in the investigation involving hydroxyl radical Aim: (OH*) injury, one of the most potent mediators in ischemia-reperfusion injury, little is known about the impact on atrial myocardium. In this study we thus compared the OH*-induced injury response between atrial and right ventricular muscles from both rabbits and dogs under identical...

Journal: :iranian journal of basic medical sciences 0
moslem najafi department of pharmacology, school of pharmacy, drug applied research center and research center for pharmaceutical nanotechnology, tabriz university of medical sciences, tabriz, iran elham ghasemian department of pharmacology, school of pharmacy, tabriz university of medical sciences, tabriz, iran fatemeh fathiazad department of pharmacognosy, school of pharmacy, tabriz university of medical sciences, tabriz, iran alireza garjani research center for pharmaceutical nanotechnology, tabriz university of medical sciences, tabriz, iran

objective(s) dracocephalum moldavica (d. moldavica) have been traditionally used as a cardiotonic agent in the folk medicine of some regions of iran. in the present study, effects of total extract of d. moldavica on ischemia/reperfusion induced arrhythmias and infarct size investigated in isolated rat heart. materials and methods the isolated hearts were mounted on a langendorff apparatus then ...

Journal: :Circulation research 1978
R J Myerburg H Gelband K Nilsson A Castellanos A R Morales A L Bassett

Thin sections of canine right and left ventricular endocardium and myocardium were studied in a tissue bath to compare conduction properties of intraventricular specialized conducting tissue [Purkinje fibers (PF)], the superficial layers of subendocardial ventricular muscle (SVM), and the deeper ventricular muscle (DVM) below this level. The study was carried out because of observations that so...

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