Mechanisms of Activation of Cardiac Glycogen Phosphorylase in
... connected to the inspiratory cannula that was submerged in a 15-cm column of water. The beating hearts were frozen in situ by compressing them into thin (1-2 mm) wafers with silver clamps precooled in liquid nitrogen 0-120 seconds after the onset of either ischemia or anoxia (14). Ischemia was intro ...
... connected to the inspiratory cannula that was submerged in a 15-cm column of water. The beating hearts were frozen in situ by compressing them into thin (1-2 mm) wafers with silver clamps precooled in liquid nitrogen 0-120 seconds after the onset of either ischemia or anoxia (14). Ischemia was intro ...
Congenital coronary artery anomalies: a bridge from embryology to
... the ventricular trabeculae,12 the aortic root endothelium,4 liver sinusoids,13 and the epicardium8,14 has independently been suggested to give rise to coronary endothelium. During the last 20 years, most studies have focused on the epicardium as the origin of coronary endothelium.7 – 9,14,15 The epi ...
... the ventricular trabeculae,12 the aortic root endothelium,4 liver sinusoids,13 and the epicardium8,14 has independently been suggested to give rise to coronary endothelium. During the last 20 years, most studies have focused on the epicardium as the origin of coronary endothelium.7 – 9,14,15 The epi ...
Congenital coronary artery anomalies
... literature does not fully endorse the idea of the epicardium as the only source of coronary smooth muscle cells.9,17 – 19,26 This is evident when analysing results from genetic tracing of EPDCs using the Cre/LoxP system (see the previous section), which show a proportion of nonlabelled cells in the ...
... literature does not fully endorse the idea of the epicardium as the only source of coronary smooth muscle cells.9,17 – 19,26 This is evident when analysing results from genetic tracing of EPDCs using the Cre/LoxP system (see the previous section), which show a proportion of nonlabelled cells in the ...
Acute Myocardial Infarction: Serial Cardiac MR Imaging Shows a
... The study protocol was reviewed and approved by the local ethics committee. Written informed consent was obtained prior to inclusion of a patient in our study. We included patients with AMI who successfully underwent percutaneous coronary reperfusion by implantation of a bare metal stent within 12 h ...
... The study protocol was reviewed and approved by the local ethics committee. Written informed consent was obtained prior to inclusion of a patient in our study. We included patients with AMI who successfully underwent percutaneous coronary reperfusion by implantation of a bare metal stent within 12 h ...
ACC/AHA/ESC 2006 guidelines for management of patients with
... 2.2.5. Risk profiles and sudden cardiac death 3. Mechanisms and substrates . . . . . . . . . . . . . . 3.1. Substrate for ventricular arrhythmias . . . . . 3.2. Mechanisms of sudden cardiac death. . . . . . 4. Clinical presentations of patients with ventricular arrhythmias and sudden cardiac death . ...
... 2.2.5. Risk profiles and sudden cardiac death 3. Mechanisms and substrates . . . . . . . . . . . . . . 3.1. Substrate for ventricular arrhythmias . . . . . 3.2. Mechanisms of sudden cardiac death. . . . . . 4. Clinical presentations of patients with ventricular arrhythmias and sudden cardiac death . ...
ACC/AHA/ESC Practice Guidelines
... Advisory and Coordinating Committee in July 2006, and by the European Society of Cardiology Committee for Practice Guidelines in July 2006. When this document is cited, the American College of Cardiology Foundation, the American Heart Association, and the European Society of Cardiology request that ...
... Advisory and Coordinating Committee in July 2006, and by the European Society of Cardiology Committee for Practice Guidelines in July 2006. When this document is cited, the American College of Cardiology Foundation, the American Heart Association, and the European Society of Cardiology request that ...
EHRA/HRS Expert Consensus on Catheter Ablation of
... Clinical ventricular tachycardia (VT): VT that has occurred spontaneously based on analysis of 12-lead ECG QRS morphology and rate. There are many potential problems and assumptions with this designation as it is applied to inducible VT in the electrophysiology laboratory (see Endpoints for ablation ...
... Clinical ventricular tachycardia (VT): VT that has occurred spontaneously based on analysis of 12-lead ECG QRS morphology and rate. There are many potential problems and assumptions with this designation as it is applied to inducible VT in the electrophysiology laboratory (see Endpoints for ablation ...
Fiber tracking and fiber architecture description in cardiac DT
... which enables cardiac fiber configurations to be more clearly observed. The second concerns a new framework, namely cardiac fiber unfolding, which is an isometric mapping. Our fiber unfolding framework allows the quantitative description of three dimensional cardiac fiber architecture in a two dimension ...
... which enables cardiac fiber configurations to be more clearly observed. The second concerns a new framework, namely cardiac fiber unfolding, which is an isometric mapping. Our fiber unfolding framework allows the quantitative description of three dimensional cardiac fiber architecture in a two dimension ...
Conformal piezoelectric energy harvesting and storage from motions
... multilayer designs; (iii) in biocompatible forms, evaluated through cell cultures and large-scale, live animal models, on various locations/orientations on different internal organs, each approaching human scales; and (iv) for harvesting inside the body, via open and closed left thoracotomy experime ...
... multilayer designs; (iii) in biocompatible forms, evaluated through cell cultures and large-scale, live animal models, on various locations/orientations on different internal organs, each approaching human scales; and (iv) for harvesting inside the body, via open and closed left thoracotomy experime ...
Translational models of coronary artery disease, myocardial
... is replaced with scar tissue. Myocardial infarction results in various changes in cardiac structure and function over time that results in “adverse remodelling”. This remodelling may result in a progressive worsening of cardiac function and development of chronic heart failure. In this thesis, we de ...
... is replaced with scar tissue. Myocardial infarction results in various changes in cardiac structure and function over time that results in “adverse remodelling”. This remodelling may result in a progressive worsening of cardiac function and development of chronic heart failure. In this thesis, we de ...
PDF Article - ScienceDirect
... Twenty-one patients participatedin the study; 10in phase I and II in phase II. The mean age of phase I patients was 51 ± 16 years. Four of these 10 patients had a history of prior myocardial infarction and 6 had no identifiable structural heart disease. The mean age of phase II patients was 54 ± 15 ...
... Twenty-one patients participatedin the study; 10in phase I and II in phase II. The mean age of phase I patients was 51 ± 16 years. Four of these 10 patients had a history of prior myocardial infarction and 6 had no identifiable structural heart disease. The mean age of phase II patients was 54 ± 15 ...
ACC/AHA/ESC 2006 Guidelines for Management of
... This document was approved by the American College of Cardiology Foundation Board of Trustees in August 2006, by the American Heart Association Science Advisory and Coordinating Committee in July 2006, and by the European Society of Cardiology Committee for Practice Guidelines in July 2006. When cit ...
... This document was approved by the American College of Cardiology Foundation Board of Trustees in August 2006, by the American Heart Association Science Advisory and Coordinating Committee in July 2006, and by the European Society of Cardiology Committee for Practice Guidelines in July 2006. When cit ...
ACC/AHA/ESC 2006 Guidelines for Management of Patients With
... This document was approved by the American College of Cardiology Foundation Board of Trustees in August 2006, by the American Heart Association Science Advisory and Coordinating Committee in July 2006, and by the European Society of Cardiology Committee for Practice Guidelines in July 2006. When cit ...
... This document was approved by the American College of Cardiology Foundation Board of Trustees in August 2006, by the American Heart Association Science Advisory and Coordinating Committee in July 2006, and by the European Society of Cardiology Committee for Practice Guidelines in July 2006. When cit ...
Non Invasive Cardiac system (NICaS) Whole Body Electrical Bio
... technique knorvn as pulmonar,v arterl.- thermodilurion, *,hich incorporates the use of a pulmonarv arteq'catheter, or PlC. PuimonarY atterv thermodilution is considered the gold standard in cardiac output monitoriag. There are two basic versions oF this technique: bolus and continuous. In bolus, or ...
... technique knorvn as pulmonar,v arterl.- thermodilurion, *,hich incorporates the use of a pulmonarv arteq'catheter, or PlC. PuimonarY atterv thermodilution is considered the gold standard in cardiac output monitoriag. There are two basic versions oF this technique: bolus and continuous. In bolus, or ...
Right Ventricular Volume Determinations in 18 Patients
... atresia, intact ventricular septum, and hypoplastic and hypertensive right ventricle. A variety of surgical procedures were performed. In only 12 patients (66.7%) was right ventricular-pulmonary artery continuity achieved (group 1). Nine of these 12 patients persisted with systemic or suprasystemic ...
... atresia, intact ventricular septum, and hypoplastic and hypertensive right ventricle. A variety of surgical procedures were performed. In only 12 patients (66.7%) was right ventricular-pulmonary artery continuity achieved (group 1). Nine of these 12 patients persisted with systemic or suprasystemic ...
Coronary anomalies: single centre experience
... aortic sinus that terminates in a cordlike fibrotic structure without a patent lumen. – Hypoplastic coronary arteries have a small luminal diameter (usually <1 mm) and reduced length. The latter is often associated with the absence of the posterior descending coronary artery. – Coronary ectasia or a ...
... aortic sinus that terminates in a cordlike fibrotic structure without a patent lumen. – Hypoplastic coronary arteries have a small luminal diameter (usually <1 mm) and reduced length. The latter is often associated with the absence of the posterior descending coronary artery. – Coronary ectasia or a ...
2.2. The object of the study
... Novelty, scientific and practical value of the study The alternation of the cardiovascular system’s functional parameters (except RR interval) during the practice of different relaxation techniques has been studied for the first time in Lithuania. There was a new relaxation technique applied – Mindf ...
... Novelty, scientific and practical value of the study The alternation of the cardiovascular system’s functional parameters (except RR interval) during the practice of different relaxation techniques has been studied for the first time in Lithuania. There was a new relaxation technique applied – Mindf ...
The Combinatorial Activities of Nkx2.5 and dHAND Are Essential for
... mutants, the future right ventricular segment was hypoplastic as reported previously (Srivastava et al., 1997), with a single left ventricle and common atrial segment remaining (Figs. 1C, 1G, and 1K). Despite each mutant having what appeared to be a single ventricle and atrial chamber, the morpholog ...
... mutants, the future right ventricular segment was hypoplastic as reported previously (Srivastava et al., 1997), with a single left ventricle and common atrial segment remaining (Figs. 1C, 1G, and 1K). Despite each mutant having what appeared to be a single ventricle and atrial chamber, the morpholog ...
Mortality Study of the Significance of Extrasystoles in an
... The prognostic significance of extrasystoles was evaluated in 712 insured persons with this finding who were followed for an average period of 18 years. At the end of the study 356 persons were alive and 125 were dead. Two hundred and thirty-one persons had terminated their policies at a prior date ...
... The prognostic significance of extrasystoles was evaluated in 712 insured persons with this finding who were followed for an average period of 18 years. At the end of the study 356 persons were alive and 125 were dead. Two hundred and thirty-one persons had terminated their policies at a prior date ...
1 - Circulation Research
... which were then gradually lowered. Thus the dogsurvived a greater number of experimental discharges. After every discharge there was an interval of 5-15 minutes to allow the cardiac rhythm to i*ecover. When changes of cardiac rhythm of a permanent character or of long duration occurred, we discontin ...
... which were then gradually lowered. Thus the dogsurvived a greater number of experimental discharges. After every discharge there was an interval of 5-15 minutes to allow the cardiac rhythm to i*ecover. When changes of cardiac rhythm of a permanent character or of long duration occurred, we discontin ...
Involvement of mitogen-activated protein kinases and reactive
... either Src by PP2 or Ras by expression of Asn17 Ras ablated ouabain-induced increases in both [Ca2+]i and contractility. Clearly, the factors that relay extracellular ouabain to increases in [Ca2+]i and contractility must be the effectors of Ras. It is well established that [Ca2+]i is the central re ...
... either Src by PP2 or Ras by expression of Asn17 Ras ablated ouabain-induced increases in both [Ca2+]i and contractility. Clearly, the factors that relay extracellular ouabain to increases in [Ca2+]i and contractility must be the effectors of Ras. It is well established that [Ca2+]i is the central re ...
Table Of Contents ACC/AHA Guidelines for the Clinical Application
... diagnosing mitral valve prolapse (MVP) in a patient with chest pain or premature ventricular contractions in the absence of clinical findings consistent with MVP. Because there is no evidence that such patients have an increased risk of endocarditis beyond the general population which does not have ...
... diagnosing mitral valve prolapse (MVP) in a patient with chest pain or premature ventricular contractions in the absence of clinical findings consistent with MVP. Because there is no evidence that such patients have an increased risk of endocarditis beyond the general population which does not have ...
AHA Scientific Statement
... the procedure can be done in the intensive care unit under echocardiographic guidance.52,55– 66 Although balloon atrial septostomy is usually a safe procedure, complications have been reported. Transient rhythm disturbances are frequent67; on rare occasions they can be permanent or fatal. Premature ...
... the procedure can be done in the intensive care unit under echocardiographic guidance.52,55– 66 Although balloon atrial septostomy is usually a safe procedure, complications have been reported. Transient rhythm disturbances are frequent67; on rare occasions they can be permanent or fatal. Premature ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.