RR interval variation, the QT interval index and risk of primary
... following myocardial infarction putatively depends on its ability to reflect tonic activity of cardiac parasympathetic efferents, the post-infarction decline of which may be arrhythmogenic[17,18]. Although inverse associations between heart rate variability, incident coronary heart disease and all-ca ...
... following myocardial infarction putatively depends on its ability to reflect tonic activity of cardiac parasympathetic efferents, the post-infarction decline of which may be arrhythmogenic[17,18]. Although inverse associations between heart rate variability, incident coronary heart disease and all-ca ...
AV node
... Since ventricular function matters most to the body, the two principal events of the cycle for us to understand are ventricular filling (during ventricular diastole), and ventricular ejection (during ventricular systole). ...
... Since ventricular function matters most to the body, the two principal events of the cycle for us to understand are ventricular filling (during ventricular diastole), and ventricular ejection (during ventricular systole). ...
Impacts of aortic stenosis and hypertension on left ventricular
... Concentric left ventricular hypertrophy is an adaptive mechanism compensating for pressure overload mainly by an increase of the myocardial wall thickness. But ultimately, left ventricular hypertrophy may lead to the development of myocardial ischemia, symptoms (i.e. angina, shortness of breath, diz ...
... Concentric left ventricular hypertrophy is an adaptive mechanism compensating for pressure overload mainly by an increase of the myocardial wall thickness. But ultimately, left ventricular hypertrophy may lead to the development of myocardial ischemia, symptoms (i.e. angina, shortness of breath, diz ...
optogenetics: a novel approach in pacing haert tissue and engender
... addition, electrical stimulation produces inhomogeneous areas of de- and hyperpolarization using unipolar point stimulation or global field stimulation of cardiomyocytes and whole hearts3,4. To overcome these limitations many researchers have done which finally lead to the stimulation of mammalian c ...
... addition, electrical stimulation produces inhomogeneous areas of de- and hyperpolarization using unipolar point stimulation or global field stimulation of cardiomyocytes and whole hearts3,4. To overcome these limitations many researchers have done which finally lead to the stimulation of mammalian c ...
PDF - Oxford Academic
... significantly vary with follow up, the rise in pulmonary blood flow for a given exercise load is therefore due to an increasing stroke volume. Epstein et a/.[l8], studying healthy corrected atrial septal defect patients (youngest 14 years) demonstrated a reduction in the rise in cardiac output (meas ...
... significantly vary with follow up, the rise in pulmonary blood flow for a given exercise load is therefore due to an increasing stroke volume. Epstein et a/.[l8], studying healthy corrected atrial septal defect patients (youngest 14 years) demonstrated a reduction in the rise in cardiac output (meas ...
Shone`s Complex
... obstruction and, rarely, valvar regurgitation. 4 Oosthoek et al4 suggested that these morphological features distinguish a parachute-like mitral valve from a true PMV. Shone’s complex is a rare congenital anomaly. Fewer than 100 patients have been reported in the literature.3 It is mostly detected i ...
... obstruction and, rarely, valvar regurgitation. 4 Oosthoek et al4 suggested that these morphological features distinguish a parachute-like mitral valve from a true PMV. Shone’s complex is a rare congenital anomaly. Fewer than 100 patients have been reported in the literature.3 It is mostly detected i ...
Heart Block Second Degree
... is benign. However when the block is associated with structural heart disease the prognosis will be related more to the underlying heart disease. Reversible causes should be always excluded, such as myocardial ischaemia and/or drug effects. Type I block in the specific setting of ACS places the pati ...
... is benign. However when the block is associated with structural heart disease the prognosis will be related more to the underlying heart disease. Reversible causes should be always excluded, such as myocardial ischaemia and/or drug effects. Type I block in the specific setting of ACS places the pati ...
Detection of ST Segment Elevation Myocardial Infarction (STEMI
... imminent prognosis from the perspectives of acuteness, territory at risk, grade of ischemia, response to reperfusion therapy, and infarct size[1][2]. The non-ST elevation infarctions (non-STEMIs) or unstable angina pectoris are also been investigated as markers for characterization from an array of ...
... imminent prognosis from the perspectives of acuteness, territory at risk, grade of ischemia, response to reperfusion therapy, and infarct size[1][2]. The non-ST elevation infarctions (non-STEMIs) or unstable angina pectoris are also been investigated as markers for characterization from an array of ...
AHA Scientific Statement
... patients over 5 years of follow-up in the CONCOR database12; 61% of admissions were for cardiovascular causes. In the United States, 20% of hospital admissions of people with ACHD are for heart failure, and the prognosis is worse for these patients than for those with ACHD admitted for other reasons ...
... patients over 5 years of follow-up in the CONCOR database12; 61% of admissions were for cardiovascular causes. In the United States, 20% of hospital admissions of people with ACHD are for heart failure, and the prognosis is worse for these patients than for those with ACHD admitted for other reasons ...
Selective serotonin reuptake inhibitors and cardiovascular events: A
... physical impairment.[9] The importance of this issue is that depression has been well identified as an independent determinant in lowering patients’ survival. Given the importance of the role of depression in predicting the outcome of cardiovascular disorders, current medications for treating depres ...
... physical impairment.[9] The importance of this issue is that depression has been well identified as an independent determinant in lowering patients’ survival. Given the importance of the role of depression in predicting the outcome of cardiovascular disorders, current medications for treating depres ...
Cardiovascular Malformations and Complications in Turner Syndrome
... was 4.7 years younger. An age-matched control group was not evaluated. Although the mean aortic root diameter of the patients with Turner syndrome was significantly greater than that of the control group (2.59 6 0.26 cm and 2.24 6 0.25 cm, respectively, P 5 ,.001), nonetheless, the aortic root diame ...
... was 4.7 years younger. An age-matched control group was not evaluated. Although the mean aortic root diameter of the patients with Turner syndrome was significantly greater than that of the control group (2.59 6 0.26 cm and 2.24 6 0.25 cm, respectively, P 5 ,.001), nonetheless, the aortic root diame ...
Right Atrial Volume Index in Chronic Systolic Heart Failure and
... Heart Association [NYHA] functional class II to IV) chronic systolic heart failure (9), in whom echocardiographic evaluation allowed reliable measurement of RA volume. Eligible patients were 18 to 75 years of age, with left ventricular ejection fraction (LVEF) ⱕ35%. Patients were excluded by a histo ...
... Heart Association [NYHA] functional class II to IV) chronic systolic heart failure (9), in whom echocardiographic evaluation allowed reliable measurement of RA volume. Eligible patients were 18 to 75 years of age, with left ventricular ejection fraction (LVEF) ⱕ35%. Patients were excluded by a histo ...
a PDF of this article. - Journal of Invasive Cardiology
... arteries and myocardial capillaries; in contrast, the cardiac venous system has traditionally been forgotten. The studies described in the literature in the last decades are very scarce and have been limited to anatomy and topography of the CS and its related veins. In this sense, the new requiremen ...
... arteries and myocardial capillaries; in contrast, the cardiac venous system has traditionally been forgotten. The studies described in the literature in the last decades are very scarce and have been limited to anatomy and topography of the CS and its related veins. In this sense, the new requiremen ...
Thrombosis in one coronary artery causes
... cavities flushed with saline. The atria and right ventricles were removed and discarded. The left ventricle was fixed in 10 % formaldehyde solution prior to analysis. Tissue for radioactive counting was obtained by slicing the left ventricle into 4 mm transverse sections from apex to base. The regio ...
... cavities flushed with saline. The atria and right ventricles were removed and discarded. The left ventricle was fixed in 10 % formaldehyde solution prior to analysis. Tissue for radioactive counting was obtained by slicing the left ventricle into 4 mm transverse sections from apex to base. The regio ...
hypothyroidism - Hormone Health Network
... Thyroid hormones regulate how your body uses and stores energy. These hormones also help your brain, heart, muscles, and other organs work properly. They affect your breathing, nervous system, body temperature, and weight. ...
... Thyroid hormones regulate how your body uses and stores energy. These hormones also help your brain, heart, muscles, and other organs work properly. They affect your breathing, nervous system, body temperature, and weight. ...
Arrhythmia Review
... electrolytes…obviously in a situation like this you are going to be treating the underlying problem – either with anti-ischemic treatments in situations like anginal CHF (remember “LMNOP”- Lasix, Morphine, Nitrates, Oxygen and Position); or clot-busting an acute MI – and hopefully this will minimize ...
... electrolytes…obviously in a situation like this you are going to be treating the underlying problem – either with anti-ischemic treatments in situations like anginal CHF (remember “LMNOP”- Lasix, Morphine, Nitrates, Oxygen and Position); or clot-busting an acute MI – and hopefully this will minimize ...
lained severe pulmonary hypertension in ... H J. L.O.
... hypertension are chronic lung diseases causing hypoxaemia and repeated stretching of the pulmonary vessels [24). Cardiac anomalies, valve diseases, shunts, and conditions inducing hypoxaemia like sleep apnoea, may increase pulmonary blood pressure. Chronic pulmonary embolism, causing hypoxaemia, and ...
... hypertension are chronic lung diseases causing hypoxaemia and repeated stretching of the pulmonary vessels [24). Cardiac anomalies, valve diseases, shunts, and conditions inducing hypoxaemia like sleep apnoea, may increase pulmonary blood pressure. Chronic pulmonary embolism, causing hypoxaemia, and ...
Influence of Psychological Stress on Systolic
... the systolic and diastolic function of the heart. The ratio of QT to TQ interval within a cardiac cycle (i.e. QTTQ ratio) represents the synchronized contraction and relaxation operation of the heart. Besides QTTQ, the ratio of TQ to RR interval (i.e. TQRR ratio) can also be used as a non-invasive m ...
... the systolic and diastolic function of the heart. The ratio of QT to TQ interval within a cardiac cycle (i.e. QTTQ ratio) represents the synchronized contraction and relaxation operation of the heart. Besides QTTQ, the ratio of TQ to RR interval (i.e. TQRR ratio) can also be used as a non-invasive m ...
The european infarction study experience
... cebo for the first 3 days. If no unwanted effects occurred during this time, the dose was increased to 160 mg twice daily. The second 24 hour electrocardiogram was performed in outpatients, that is, in 632 of the 736,5 to 12 days (median 10) after the start of the study medication intake. The pa• ti ...
... cebo for the first 3 days. If no unwanted effects occurred during this time, the dose was increased to 160 mg twice daily. The second 24 hour electrocardiogram was performed in outpatients, that is, in 632 of the 736,5 to 12 days (median 10) after the start of the study medication intake. The pa• ti ...
Fractional Flow Reserve versus Angiography for Guiding
... The design of this study has been described previously (Fig. 1).22 In eligible patients with multivessel coronary artery disease, the investigator indicated which lesions had stenosis of at least 50% of their diameter and were thought to require PCI on the basis of angiographic appearance and clinic ...
... The design of this study has been described previously (Fig. 1).22 In eligible patients with multivessel coronary artery disease, the investigator indicated which lesions had stenosis of at least 50% of their diameter and were thought to require PCI on the basis of angiographic appearance and clinic ...
Spontaneous resolution of ventricular tachycardia with right bundle
... that outcome was better when VT originated in the right ventricle. Spontaneous resolution of VT occurred in our patient four years after initiation of VT attack. But during this period the patient needed antiarrhythmic drug therapy to treat left ventricular dysfunction due to incessant VT. Radiofreq ...
... that outcome was better when VT originated in the right ventricle. Spontaneous resolution of VT occurred in our patient four years after initiation of VT attack. But during this period the patient needed antiarrhythmic drug therapy to treat left ventricular dysfunction due to incessant VT. Radiofreq ...
Mortality Risk Reduction Associated With Smoking Cessation in
... Objective To conduct a systematic review to determine the magnitude of risk reduction achieved by smoking cessation in patients with CHD. Data Sources Nine electronic databases were searched from start of database to April 2003, supplemented by cross-checking references, contact with experts, and wi ...
... Objective To conduct a systematic review to determine the magnitude of risk reduction achieved by smoking cessation in patients with CHD. Data Sources Nine electronic databases were searched from start of database to April 2003, supplemented by cross-checking references, contact with experts, and wi ...