D - VCOMcc
... Comparison of the stroke volumes obtained while Mr. Lipoma had a heart rate of 82 with that when his rate was 52 beats per minute suggests that Mr. Lipoma has a) a very compliant left ventricle. E. Normal b) atrial flutter. c) a noncompliant left ventricle.* d) increased cardiac reserve. 4. Blood pr ...
... Comparison of the stroke volumes obtained while Mr. Lipoma had a heart rate of 82 with that when his rate was 52 beats per minute suggests that Mr. Lipoma has a) a very compliant left ventricle. E. Normal b) atrial flutter. c) a noncompliant left ventricle.* d) increased cardiac reserve. 4. Blood pr ...
Lab10
... The blood pressure in the arteries rises and falls with the phases of the heart beat. The highest pressure in the arteries, produced by ventricular contraction is known as the SYSTOLIC BLOOD PRESSURE. The lowest pressure in the arteries, produced by ventricular relaxation is known as the DIASTOLIC B ...
... The blood pressure in the arteries rises and falls with the phases of the heart beat. The highest pressure in the arteries, produced by ventricular contraction is known as the SYSTOLIC BLOOD PRESSURE. The lowest pressure in the arteries, produced by ventricular relaxation is known as the DIASTOLIC B ...
LV Dssynchrony and Cardiac Resynchronization Therapy in Heart
... Echocardiographic parameters assessing dyssynchrony do not have enough predictive value to be recommended as selection criteria for CRT beyond current indications ...
... Echocardiographic parameters assessing dyssynchrony do not have enough predictive value to be recommended as selection criteria for CRT beyond current indications ...
Cardiac transplantation is still the method of choice in the treatment
... survival in patients with heart failure was worse than in patients with most cancers. One-year survival with heart failure was less than 60%, and 4-year survival was about 35%, thus heart failure was dubbed “more malignant then cancer”. During the last 20 years, a significant progress in the treatme ...
... survival in patients with heart failure was worse than in patients with most cancers. One-year survival with heart failure was less than 60%, and 4-year survival was about 35%, thus heart failure was dubbed “more malignant then cancer”. During the last 20 years, a significant progress in the treatme ...
Original Contributions
... and ranged from 0.75 to 13.8 minutes in vulnerable pigs. Intracerebroventricular administration of L-propranolol (0.05 mg/kg) prolonged the time to VF compared with Ringer's solution and D-propranolol (p<0.05). The high dose of L-propranolol also reduced the incidence of VF (7/15 fibrillated) compar ...
... and ranged from 0.75 to 13.8 minutes in vulnerable pigs. Intracerebroventricular administration of L-propranolol (0.05 mg/kg) prolonged the time to VF compared with Ringer's solution and D-propranolol (p<0.05). The high dose of L-propranolol also reduced the incidence of VF (7/15 fibrillated) compar ...
SUDDEN DEATH IN YOUNG ATHLETES
... Although sudden death during sport is a rare event, it always has a tragic impact because it occurs in apparently healthy individuals and assumes great visibility through the news media, due to the high public profile of competitive athletes [1-4]. For centuries it was a mystery why cardiac arrest s ...
... Although sudden death during sport is a rare event, it always has a tragic impact because it occurs in apparently healthy individuals and assumes great visibility through the news media, due to the high public profile of competitive athletes [1-4]. For centuries it was a mystery why cardiac arrest s ...
A. Atrial Septal Defect
... role of systemic-to-pulmonary artery shunt vs. total repair types of aortic-to-pulmonary artery shunts extracorporeal bypass and myocardial protection ventricular septal defect closure by transventricular or transatrial approach techniques for relief of right ventricular outflow tract obstruction an ...
... role of systemic-to-pulmonary artery shunt vs. total repair types of aortic-to-pulmonary artery shunts extracorporeal bypass and myocardial protection ventricular septal defect closure by transventricular or transatrial approach techniques for relief of right ventricular outflow tract obstruction an ...
The Teleost Heart: A Morphological Approach*
... The outflow tract, the ventricle (V), and the atrioventricular (AV) regions are exposed. The bulbus (B) shows well-marked longitudinal ridges. The cranial bulbus boundary corresponds to the pericardial insertion (arrow). The conus supports three semilunar valves of roughly equal size (arrowheads). T ...
... The outflow tract, the ventricle (V), and the atrioventricular (AV) regions are exposed. The bulbus (B) shows well-marked longitudinal ridges. The cranial bulbus boundary corresponds to the pericardial insertion (arrow). The conus supports three semilunar valves of roughly equal size (arrowheads). T ...
Sudden Cardiac Death Thirty Years Ago and at Present. The Role of
... range of reflex changes in the ratio of sympathetic to vagal ventricular activation over time, occurring immediately after coronary artery occlusion at the onset of acute myocardial infarction (AMI). Another trigger of VF is autonomic disturbance due to emotional stress. Experimental and clinical re ...
... range of reflex changes in the ratio of sympathetic to vagal ventricular activation over time, occurring immediately after coronary artery occlusion at the onset of acute myocardial infarction (AMI). Another trigger of VF is autonomic disturbance due to emotional stress. Experimental and clinical re ...
Temporal Trends in Hospitalisations for Heart Failure
... , which undoubtedly has led to a reduction in the incidence of heart failure. The observed mean length of stay did not decrease over the 8 year period but slightly increased from 12.0 days to 12.4 days, a relative increase of 3.2% over the 8-year period. Although not statically significant it did sh ...
... , which undoubtedly has led to a reduction in the incidence of heart failure. The observed mean length of stay did not decrease over the 8 year period but slightly increased from 12.0 days to 12.4 days, a relative increase of 3.2% over the 8-year period. Although not statically significant it did sh ...
Absent right and persistent left superior vena cava
... valves consistent with age related changes. There was no la boratory evidence of any metabolic or ischemic etiologies for the conduction disease. Given her age, clinical presenta tion, underlying conduction disease in the setting of no sig nificant structural abnormalities on echocardiography, an ...
... valves consistent with age related changes. There was no la boratory evidence of any metabolic or ischemic etiologies for the conduction disease. Given her age, clinical presenta tion, underlying conduction disease in the setting of no sig nificant structural abnormalities on echocardiography, an ...
VENTRICULAR SEPTAL DEFECT SIMULATING PATENT DUCTUS
... This combination was described by Laubry and Pezzi (1921) and Laubry et al. (1933). In describing Eisenmenger's complex, Taussig (1947) stated that the aortic cusp which lies above the ventricular septal defect is often abnormally large and deep and sometimes at a lower level than the other two cusp ...
... This combination was described by Laubry and Pezzi (1921) and Laubry et al. (1933). In describing Eisenmenger's complex, Taussig (1947) stated that the aortic cusp which lies above the ventricular septal defect is often abnormally large and deep and sometimes at a lower level than the other two cusp ...
Diminished Baroreflex Sensitivity in High Blood Pressure
... to stimulate the baroreflex.6 Both drugs caused rises in systolic, diastolic, and mean BP, with little change in pulse pressure. The records were analyzed by methods which have been described in detail elsewhere,5' 7 and which are summarized here. All systolic and diastolic pressure pulses and R-R i ...
... to stimulate the baroreflex.6 Both drugs caused rises in systolic, diastolic, and mean BP, with little change in pulse pressure. The records were analyzed by methods which have been described in detail elsewhere,5' 7 and which are summarized here. All systolic and diastolic pressure pulses and R-R i ...
Cardiac Responses during Stimulation of the Dorsal Motor Nucleus
... while NA somata can affect heart rate. Stimulation of the DMN produced decreases in the indices of ventricular contractility (dP/dt and SGF) but no HR changes (Figs. 1 and 2). NA stimulation resulted in HR decreases (Figs. 3 and 4). The responses to stimulating either nucleus were abolished by ipsil ...
... while NA somata can affect heart rate. Stimulation of the DMN produced decreases in the indices of ventricular contractility (dP/dt and SGF) but no HR changes (Figs. 1 and 2). NA stimulation resulted in HR decreases (Figs. 3 and 4). The responses to stimulating either nucleus were abolished by ipsil ...
Clinical Spectrum of Acute or New
... most common sustained or new onset arrhythmia affecting 1–2% of the population, and this figure is likely to increase in the coming years. 1,2 The prevalence of AF increases with age, from 0.5% at 40–50 years, to 5–15% at 80 years. 3-5 AF increases the risk of stroke 5-folds and one in five of all s ...
... most common sustained or new onset arrhythmia affecting 1–2% of the population, and this figure is likely to increase in the coming years. 1,2 The prevalence of AF increases with age, from 0.5% at 40–50 years, to 5–15% at 80 years. 3-5 AF increases the risk of stroke 5-folds and one in five of all s ...
Acute Myocardial Infarction due to Coronary Artery Embolism
... Acute Myocardial Infarction due to Coronary Artery Embolism in a Patient with a Tissue Aortic Valve Replacement ...
... Acute Myocardial Infarction due to Coronary Artery Embolism in a Patient with a Tissue Aortic Valve Replacement ...
Ike - Wendy Blount, DVM
... • Owner gave furosemide for one week after the dental, and quit – she had bandaids on her fingers • One year later, Warner doing well • Owner declined recommended follow-up diagnostics • Presumptive diagnosis is HCM • If the cat had cardiac LSA, he would no longer be alive ...
... • Owner gave furosemide for one week after the dental, and quit – she had bandaids on her fingers • One year later, Warner doing well • Owner declined recommended follow-up diagnostics • Presumptive diagnosis is HCM • If the cat had cardiac LSA, he would no longer be alive ...
Circulatory Failure after Anesthesia Induction
... blockers, or nitroglycerin failed to show beneficial effects; therefore, we did not consider the administration of these agents. Isoflurane was chosen in this patient because it was shown to lower pulmonary vascular resistance.12 Any factor that worsens pulmonary hypertension (hypoxia, acidosis, lig ...
... blockers, or nitroglycerin failed to show beneficial effects; therefore, we did not consider the administration of these agents. Isoflurane was chosen in this patient because it was shown to lower pulmonary vascular resistance.12 Any factor that worsens pulmonary hypertension (hypoxia, acidosis, lig ...
Effects of Long-Term Biventricular Stimulation for
... Inclusion criteria were dilated cardiomyopathy, NYHA functional class III to IV heart failure, QRS duration ⱖ120 ms, and PR interval ⱖ160 ms. The study was closed in September 2000 after 53 device implants because of slow patient enrollment. Factors contributing to slow enrollment were the need for ...
... Inclusion criteria were dilated cardiomyopathy, NYHA functional class III to IV heart failure, QRS duration ⱖ120 ms, and PR interval ⱖ160 ms. The study was closed in September 2000 after 53 device implants because of slow patient enrollment. Factors contributing to slow enrollment were the need for ...
Cardiac System - Nursing Education Consultants
... B. The apex of the heart points downward and to the left; the apex comes in contact with the chest wall at about the fifth to sixth intercostal space. In the healthy individual, the point of maximum impulse (PMI) may be palpated here; this is also the area to auscultate when evaluating the apical h ...
... B. The apex of the heart points downward and to the left; the apex comes in contact with the chest wall at about the fifth to sixth intercostal space. In the healthy individual, the point of maximum impulse (PMI) may be palpated here; this is also the area to auscultate when evaluating the apical h ...
Beta-blockers for the prevention of sudden cardiac death in heart
... © 2013 Al-Gobari et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the origin ...
... © 2013 Al-Gobari et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the origin ...
3D anatomical modelling of the human cardiac conduction system
... Figure 1.1. Anatomical location of sinus node. ........................................................ 19 Figure 1.2. Histology and immunohistochemistry for Cx43 of human sinus node and surrounding tissue. ............................................................................................. ...
... Figure 1.1. Anatomical location of sinus node. ........................................................ 19 Figure 1.2. Histology and immunohistochemistry for Cx43 of human sinus node and surrounding tissue. ............................................................................................. ...
Document
... Poor systolic performance of the heart resulting in decreased cardiac output and increased venous pressures Typically occurs in association with impaired left ventricular systolic function due to any number of causes Left ventricular ejection fraction (LVEF) of <40% Heart Failure with Preser ...
... Poor systolic performance of the heart resulting in decreased cardiac output and increased venous pressures Typically occurs in association with impaired left ventricular systolic function due to any number of causes Left ventricular ejection fraction (LVEF) of <40% Heart Failure with Preser ...
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.