The importance of exercise echocardiography for clinical decision
... Mitral regurgitation is the second most prevalent valvulopathy in Europe after aortic stenosis.1 Primary mitral regurgitation has an organic cause such as rheumatic disease, myxomatous degeneration or endocarditis. In secondary mitral regurgitation, the mitral valve is structurally normal but dysfun ...
... Mitral regurgitation is the second most prevalent valvulopathy in Europe after aortic stenosis.1 Primary mitral regurgitation has an organic cause such as rheumatic disease, myxomatous degeneration or endocarditis. In secondary mitral regurgitation, the mitral valve is structurally normal but dysfun ...
AHA Conference Proceedings
... during balloon dilation and/or stenting, resulting from “active” disruption of the atherosclerotic plaque (type II embolization). The incidence of type I or type II atheroembolization during diagnostic or interventional procedures is not known. The diagnosis is suspected when subacute renal failure ...
... during balloon dilation and/or stenting, resulting from “active” disruption of the atherosclerotic plaque (type II embolization). The incidence of type I or type II atheroembolization during diagnostic or interventional procedures is not known. The diagnosis is suspected when subacute renal failure ...
Surgery for Atrial Fibrillation - ANNALS Academy of Medicine
... Atrial fibrillation is the most common sustained cardiac arrhythmia. 1 The overall prevalence of atrial fibrillation is 0.4%.2 This increases with age, reaching 3% to 5% in those over 65 years3,4 and 9% in those over 80 years.5 Atrial fibrillation is more common in patients with structural heart dis ...
... Atrial fibrillation is the most common sustained cardiac arrhythmia. 1 The overall prevalence of atrial fibrillation is 0.4%.2 This increases with age, reaching 3% to 5% in those over 65 years3,4 and 9% in those over 80 years.5 Atrial fibrillation is more common in patients with structural heart dis ...
Managing adult Fontan patients: where do we stand?
... scars within the atrial mass predispose these patients to atrial arrhythmias, predominantly of the atypical atrial flutter type [31–33]. Scarring within the atrial mass provides the substrate for macro re-entrant tachycardia circuits to form, and the occurrence of this intra-atrial re-entrant tachyc ...
... scars within the atrial mass predispose these patients to atrial arrhythmias, predominantly of the atypical atrial flutter type [31–33]. Scarring within the atrial mass provides the substrate for macro re-entrant tachycardia circuits to form, and the occurrence of this intra-atrial re-entrant tachyc ...
6 The Coronary System and Associated Medical Devices
... progresses, the myocardium downstream from the occluded artery becomes ischemic. Eventually, myocardial infarction may occur if the coronary artery disease is not detected and treated in a timely manner. Myocardial ischemia not only impairs the electrical and mechanical function of the heart, but al ...
... progresses, the myocardium downstream from the occluded artery becomes ischemic. Eventually, myocardial infarction may occur if the coronary artery disease is not detected and treated in a timely manner. Myocardial ischemia not only impairs the electrical and mechanical function of the heart, but al ...
Editorial Review Abnormalities of the coronary circulation
... common clinical finding. Its prevalence increases with age, rising to 23.7% in males over the age of 5 9 years and to 33% in females of the same age [l].The electrocardiogram is a less sensitive index of left ventricular hypertrophy [2, 31, but it is an ominous prognostic sign, being associated with ...
... common clinical finding. Its prevalence increases with age, rising to 23.7% in males over the age of 5 9 years and to 33% in females of the same age [l].The electrocardiogram is a less sensitive index of left ventricular hypertrophy [2, 31, but it is an ominous prognostic sign, being associated with ...
Materials and Methods - Frontiers in Bioscience
... carnitine supplementation. This was associated with a reduction in glucose utilisation. In summary carnitine supplementation prevents cardiac hypertrophy, and this effect is amplified with the duration of treatment. This is associated with a reduction in myocardial glucose utilisation but no signifi ...
... carnitine supplementation. This was associated with a reduction in glucose utilisation. In summary carnitine supplementation prevents cardiac hypertrophy, and this effect is amplified with the duration of treatment. This is associated with a reduction in myocardial glucose utilisation but no signifi ...
Recommendations for the Evaluation of Left Ventricular Diastolic
... instantaneous fall to low diastolic pressures, which allows for the maximum time for LV filling. This theoretically optimal situation is approached by the cyclic interaction of myofilaments and assumes competent mitral and aortic valves. Diastole starts at aortic valve closure and includes LV pressu ...
... instantaneous fall to low diastolic pressures, which allows for the maximum time for LV filling. This theoretically optimal situation is approached by the cyclic interaction of myofilaments and assumes competent mitral and aortic valves. Diastole starts at aortic valve closure and includes LV pressu ...
International Journal of Current Research and Review
... more dangerous than right coronary artery taking similar path, as a larger volume of myocardium is put at risk in the former case.[fig: 1] The variations in the origin of coronary arteries may be explained on embryological basis. The first evidence of coronary vessel development is the appearance at ...
... more dangerous than right coronary artery taking similar path, as a larger volume of myocardium is put at risk in the former case.[fig: 1] The variations in the origin of coronary arteries may be explained on embryological basis. The first evidence of coronary vessel development is the appearance at ...
Chapter 6
... isthmus towards the tricuspid valve annulus. The fast pathway of the AVN (blue) starts anterosuperiorly in the interatrial septum. Both the slow and fast pathway converge onto the AVN at sites known as the posterior and anterior nodal inputs, respectively. ...
... isthmus towards the tricuspid valve annulus. The fast pathway of the AVN (blue) starts anterosuperiorly in the interatrial septum. Both the slow and fast pathway converge onto the AVN at sites known as the posterior and anterior nodal inputs, respectively. ...
Final Public Summary Document - Word 100 KB
... In a number of the cases in the transcatheter group, subjects developed complete atrioventricular block (AVB) during the procedure. In these cases the catheterisation procedure was aborted and surgical VSD closure undertaken. In only one study (Oses 2010) was there a suggestion of an increased incid ...
... In a number of the cases in the transcatheter group, subjects developed complete atrioventricular block (AVB) during the procedure. In these cases the catheterisation procedure was aborted and surgical VSD closure undertaken. In only one study (Oses 2010) was there a suggestion of an increased incid ...
Coronary ischemia-reperfusion: role of nitric oxide and endothelin
... also damage myocardium (reperfusion injury), of which the pathophysiology and treatment remain uncertain. The interaction between NO and ET-1 may be relevant for regulating the coronary circulation, with predominance of NO over ET-1 under normal conditions. The coronary circulation plays a crucial r ...
... also damage myocardium (reperfusion injury), of which the pathophysiology and treatment remain uncertain. The interaction between NO and ET-1 may be relevant for regulating the coronary circulation, with predominance of NO over ET-1 under normal conditions. The coronary circulation plays a crucial r ...
Print - Circulation
... (1) Injecting radiopaque lead-agar mass of different colors into the main coronary arteries at a pressure of 150 to 200 mm. Hg. (2) Unrolling the heart so that the coronar'y arterial tree lay in one plane. (3) Taking a roentgenogram of the unrolled heart. (4) Carefully dissecting and opening the cor ...
... (1) Injecting radiopaque lead-agar mass of different colors into the main coronary arteries at a pressure of 150 to 200 mm. Hg. (2) Unrolling the heart so that the coronar'y arterial tree lay in one plane. (3) Taking a roentgenogram of the unrolled heart. (4) Carefully dissecting and opening the cor ...
Right ventricular remodeling and function in pulmonary arterial hypertension
... However, PAH cannot be cured with these therapies and long-term survival remains unsatisfactory38,39. The contrast between hemodynamic success and a poor prognosis after medical treatment, raises the question whether a reduced, but non-normalized PVR is automatically followed by an improved RV funct ...
... However, PAH cannot be cured with these therapies and long-term survival remains unsatisfactory38,39. The contrast between hemodynamic success and a poor prognosis after medical treatment, raises the question whether a reduced, but non-normalized PVR is automatically followed by an improved RV funct ...
Contemporary Echocardiography In Non
... Results: Of 55 patients, 76% were male while 20% had diabetes and 56% were current or previous smokers. Patients with diabetes and/or smoking history were more likely to have multiple coronary lesions and nine fold more likely to require coronary artery bypass grafting. 36% of patients had a left ve ...
... Results: Of 55 patients, 76% were male while 20% had diabetes and 56% were current or previous smokers. Patients with diabetes and/or smoking history were more likely to have multiple coronary lesions and nine fold more likely to require coronary artery bypass grafting. 36% of patients had a left ve ...
Cirrhosis - Portal Hypertension - AGA
... Study involved 90 patients with cirrhosis who had been vomiting blood due to variceal bleeding during the previous 12 hours. The 47 patients randomized to the intervention group received an intravenous bolus infusion of 125 mg erythromycin lactobionate in 50 mL normal saline. The other 43 patien ...
... Study involved 90 patients with cirrhosis who had been vomiting blood due to variceal bleeding during the previous 12 hours. The 47 patients randomized to the intervention group received an intravenous bolus infusion of 125 mg erythromycin lactobionate in 50 mL normal saline. The other 43 patien ...
Sleep apnoea as an independent risk factor
... treatment showed morbidity and mortality figures very similar to those obtained in the general population. The study by DOHERTY et al. [48] instead, suggested that untreated OSAS may increase the severity rather than the prevalence of cardiovascular disease. Indeed, the incidence of hypertension, is ...
... treatment showed morbidity and mortality figures very similar to those obtained in the general population. The study by DOHERTY et al. [48] instead, suggested that untreated OSAS may increase the severity rather than the prevalence of cardiovascular disease. Indeed, the incidence of hypertension, is ...
PACES/HRS Expert Consensus Statement on the Evaluation and
... 1. Introduction There have been multiple small series describing sustained VT in the pediatric patient with a normal heart, but there are very limited data regarding the incidence of this entity in the general population.3–7 In a school-based heart disease screening program in Japan, the incidence o ...
... 1. Introduction There have been multiple small series describing sustained VT in the pediatric patient with a normal heart, but there are very limited data regarding the incidence of this entity in the general population.3–7 In a school-based heart disease screening program in Japan, the incidence o ...
A Comprehensive look At heart structure, function, and health
... electrical currents are generated by the heart, they spread throughout the body and can be detected on the body’s surface and recorded by an electrocardiogram ...
... electrical currents are generated by the heart, they spread throughout the body and can be detected on the body’s surface and recorded by an electrocardiogram ...
Role of neural modulation in the pathophysiology of atrial fibrillation
... substantial portion of the treated AF population was unresponsive to AADs therapy. It is reasonable to assume that this group would constitute candidates for catheter or surgical ablation. Currently, use of either option (rate control or rhythm control) is dependent on the patient’s age, severity of ...
... substantial portion of the treated AF population was unresponsive to AADs therapy. It is reasonable to assume that this group would constitute candidates for catheter or surgical ablation. Currently, use of either option (rate control or rhythm control) is dependent on the patient’s age, severity of ...
Study of Third Coronary Artery in Adult Human Cadaveric Hearts
... Usually there are two coronary arteries, right and left. Sometimes supernumerary arteries may arise from the anterior aortic sinus. Commonest among them is the third coronary artery. A third coronary artery (TCA) has been defined as a direct branch from the anterior aortic sinus (Right coronary sinu ...
... Usually there are two coronary arteries, right and left. Sometimes supernumerary arteries may arise from the anterior aortic sinus. Commonest among them is the third coronary artery. A third coronary artery (TCA) has been defined as a direct branch from the anterior aortic sinus (Right coronary sinu ...
angiographic study of the normal coronary artery in patients
... to the ventricular muscle remains relatively constant, regardless of pressure fluctuations within the left and right coronary arteries (Frederic et al, 2003). The functional value of such anastomoses is variable, but they appear to become more effective in slowly progressive pathological condition, ...
... to the ventricular muscle remains relatively constant, regardless of pressure fluctuations within the left and right coronary arteries (Frederic et al, 2003). The functional value of such anastomoses is variable, but they appear to become more effective in slowly progressive pathological condition, ...
Screening for undiagnosed atrial fibrillation in the community
... period. Eighty-one patients had known atrial fibrillation (9.6% of those screened) and 35 of these patients were not on oral anticoagulation. New atrial fibrillation was diagnosed on the initial ECG in 10 patients (1.2% of those screened). Home ECG recordings were obtained on 403 individuals with a ...
... period. Eighty-one patients had known atrial fibrillation (9.6% of those screened) and 35 of these patients were not on oral anticoagulation. New atrial fibrillation was diagnosed on the initial ECG in 10 patients (1.2% of those screened). Home ECG recordings were obtained on 403 individuals with a ...
Effect of 2,3,7,8-Tetrachlorodibenzo-p
... reasons for these species differences are not known. It is possible that TCDD fails to induce cardiac teratogenicity during mammalian development or, alternatively, that the effects are subtle in nature and have not been studied in sufficient detail to identify their occurrence. Thus, in this study ...
... reasons for these species differences are not known. It is possible that TCDD fails to induce cardiac teratogenicity during mammalian development or, alternatively, that the effects are subtle in nature and have not been studied in sufficient detail to identify their occurrence. Thus, in this study ...
Atrial natriuretic polypeptide is removed by the lungs and released
... levels at the left atrium and thus could not show the hormone’s release from the left atrium. Rodeheffer et al. (12) reported significant decreases in plasma atrial natriuretic polypeptide levels in the pulmonary capillary bed compared with the pulmonary artery and the aorta in humans and suggested ...
... levels at the left atrium and thus could not show the hormone’s release from the left atrium. Rodeheffer et al. (12) reported significant decreases in plasma atrial natriuretic polypeptide levels in the pulmonary capillary bed compared with the pulmonary artery and the aorta in humans and suggested ...