PULMONARY ATRESIA WITH INTACT VENTRICULAR SEPTUM
... This is well shown in the present case by the consecutive electrocardiographic records which show a change in axis direction from 85° to 120°. The electrical position is vertical, and the tracings show a progressive degree of clockwise rotation. The development of the giant P waves is also a notewor ...
... This is well shown in the present case by the consecutive electrocardiographic records which show a change in axis direction from 85° to 120°. The electrical position is vertical, and the tracings show a progressive degree of clockwise rotation. The development of the giant P waves is also a notewor ...
Spotlight: Manuel Antunes, MD, PhD, DSc
... in cardiothoracic surgery in South Africa. He started as a junior resident and progressively occupied the full range of positions (consultant, senior consultant, chief consultant, professor, and head of the department) in the Division of Cardiothoracic Surgery of the Johannesburg Hospital and the Un ...
... in cardiothoracic surgery in South Africa. He started as a junior resident and progressively occupied the full range of positions (consultant, senior consultant, chief consultant, professor, and head of the department) in the Division of Cardiothoracic Surgery of the Johannesburg Hospital and the Un ...
PDF Article
... locally by the vessel wall may be reduced, thus favoring platelet aggregation (14). If the endothelium is normal, platelet products such as adenosine triphosphate and serotonin cause relaxation as.does thrombin, of the smooth muscle by the formation of an unknown substance or substances (endothelium ...
... locally by the vessel wall may be reduced, thus favoring platelet aggregation (14). If the endothelium is normal, platelet products such as adenosine triphosphate and serotonin cause relaxation as.does thrombin, of the smooth muscle by the formation of an unknown substance or substances (endothelium ...
No Slide Title
... Basic Anatomy and Physiology • There are 3 major types of blood vessels: arteries, veins, and capillaries – An artery is a blood vessel that carries blood away from the heart – Veins are low-pressure collecting system that returns blood to the heart – Capillaries are single-cell-thick vessels that ...
... Basic Anatomy and Physiology • There are 3 major types of blood vessels: arteries, veins, and capillaries – An artery is a blood vessel that carries blood away from the heart – Veins are low-pressure collecting system that returns blood to the heart – Capillaries are single-cell-thick vessels that ...
Types of Congenital Heart Defects
... The pulmonary valve is in the right side of the heart, between the right ventricle and the entrance to the pulmonary artery. This artery carries blood from the heart to the lungs. The mitral valve is in the left side of the heart, between the left atrium and the left ventricle. The aortic valve is i ...
... The pulmonary valve is in the right side of the heart, between the right ventricle and the entrance to the pulmonary artery. This artery carries blood from the heart to the lungs. The mitral valve is in the left side of the heart, between the left atrium and the left ventricle. The aortic valve is i ...
Double-blind crossover comparison of enoximone and
... can provoke serious arrhythmias, particularly when the patient is taking digitalis also. The limited value of digitalis as an effective inotropic agent over the long term is combined with a well-recognized and high incidence of adverse effects.' The shortcomings of standard therapy has led to a sear ...
... can provoke serious arrhythmias, particularly when the patient is taking digitalis also. The limited value of digitalis as an effective inotropic agent over the long term is combined with a well-recognized and high incidence of adverse effects.' The shortcomings of standard therapy has led to a sear ...
Patent Ductus Arteriosus
... • Manage fluid buildup in the lungs (known as “pulmonary edema”) with medications to remove excess fluid from the body (known as “diuretics,” such as furosemide) and, if necessary, oxygen, medications to dilate blood vessels (known as “vasodilators,” such as nitrates), and cage rest • Following stab ...
... • Manage fluid buildup in the lungs (known as “pulmonary edema”) with medications to remove excess fluid from the body (known as “diuretics,” such as furosemide) and, if necessary, oxygen, medications to dilate blood vessels (known as “vasodilators,” such as nitrates), and cage rest • Following stab ...
10 Heart Rate BP Vital Signs
... Since the earliest days of medicine heart rate has been recognized as a vital sign—an indicator of health, disease, excitement, and stress. Medical personnel use the heart rate to provide clues as to the presence of many medical conditions. Reflex changes in heart rate are one of the body’s most bas ...
... Since the earliest days of medicine heart rate has been recognized as a vital sign—an indicator of health, disease, excitement, and stress. Medical personnel use the heart rate to provide clues as to the presence of many medical conditions. Reflex changes in heart rate are one of the body’s most bas ...
OBESITY AND CONGESTIVE HEART FAILURE
... substrate for obesity-induced CHF, often referred to as obesity cardiomyopathy. Substantial weight loss reverses many of the changes in cardiac structure and function as well as many of the clinical manifestations of obesity cardiomyopathy. Right ventricular failure may result from LV failure and ma ...
... substrate for obesity-induced CHF, often referred to as obesity cardiomyopathy. Substantial weight loss reverses many of the changes in cardiac structure and function as well as many of the clinical manifestations of obesity cardiomyopathy. Right ventricular failure may result from LV failure and ma ...
Document
... necessary to keep the insides of these cells relatively electronegative. These ions pass into and out of the cell through special ion channels in the cell membrane. The most common natural cause of sudden death in young persons is a disturbance in the electrical flow through the heart, called an arr ...
... necessary to keep the insides of these cells relatively electronegative. These ions pass into and out of the cell through special ion channels in the cell membrane. The most common natural cause of sudden death in young persons is a disturbance in the electrical flow through the heart, called an arr ...
The Cardiovascular System
... • Aortaarteries • Arteriescapillaries, drop off O2, pick up Co2, repeat cycle. • Oxygen and pressure higher in arteries • Pulmonary arteries are the only arteries in the body that carry deoxygenated blood! ...
... • Aortaarteries • Arteriescapillaries, drop off O2, pick up Co2, repeat cycle. • Oxygen and pressure higher in arteries • Pulmonary arteries are the only arteries in the body that carry deoxygenated blood! ...
Volume
... Low preload is the cause of the decreased CO in case of syncope and shock In heart failure the preload is not decreased but it is increased as one of the the compensatory mechanisms ...
... Low preload is the cause of the decreased CO in case of syncope and shock In heart failure the preload is not decreased but it is increased as one of the the compensatory mechanisms ...
Alterations in Cardiovascular Function
... • initially R sided failure, progressing to L sided and eventual bilateral failure ...
... • initially R sided failure, progressing to L sided and eventual bilateral failure ...
01. Pathophysiology of cardiovasc diseases
... Drugs, which cause vessels spasm (influent on kidney), hormonal contraceptives ...
... Drugs, which cause vessels spasm (influent on kidney), hormonal contraceptives ...
Swan-Ganz RN ICU
... • Right-sided Filling Pressure: CVP – has been used as a rough estimate of LV Preload, but it may be an unreliable indicator of ventricular function (especially in the critically ill patient) ...
... • Right-sided Filling Pressure: CVP – has been used as a rough estimate of LV Preload, but it may be an unreliable indicator of ventricular function (especially in the critically ill patient) ...
Outpatient Cardiovascular Telemetry
... had undergone 24 hours of monitoring with a Holter monitor, which failed to provide diagnostic information. These patients were randomized to 30 days of monitoring with MCOT (MCOT Group) or with an external loop monitor (Loop Group). Most of the patients in the Loop Group were required to activate t ...
... had undergone 24 hours of monitoring with a Holter monitor, which failed to provide diagnostic information. These patients were randomized to 30 days of monitoring with MCOT (MCOT Group) or with an external loop monitor (Loop Group). Most of the patients in the Loop Group were required to activate t ...
ENTC 4350
... pulse rates ranging from 30 to 155 bpm, feedback sensitivities from 0.7 to 4.5 V, pulse amplitudes from 2.5 to 10 V, and pulse widths from 0.25 to 1 ms, among ...
... pulse rates ranging from 30 to 155 bpm, feedback sensitivities from 0.7 to 4.5 V, pulse amplitudes from 2.5 to 10 V, and pulse widths from 0.25 to 1 ms, among ...
Adjunctive treatment with eplerenone reduced
... The EPHESUS trial by Pitt and colleagues clearly showed that eplerenone, an aldosterone inhibitor, reduces mortality in patients with LVSD and heart failure following an acute MI. Based largely on this trial, the U.S. Food and Drug Administration approved eplerenone in October 2003 for use in patien ...
... The EPHESUS trial by Pitt and colleagues clearly showed that eplerenone, an aldosterone inhibitor, reduces mortality in patients with LVSD and heart failure following an acute MI. Based largely on this trial, the U.S. Food and Drug Administration approved eplerenone in October 2003 for use in patien ...
Print - Circulation Research
... clip was omitted. In two control animals, a nonconstricting clip was used with no change in results. Histologic Studies.—Since use of tissue for enzyme determinations precluded microscopic analysis of the heart in some animals in the experimental group, identically operated weightmatched controls we ...
... clip was omitted. In two control animals, a nonconstricting clip was used with no change in results. Histologic Studies.—Since use of tissue for enzyme determinations precluded microscopic analysis of the heart in some animals in the experimental group, identically operated weightmatched controls we ...
EXCITATION AND CONDUCTING SYSTEM OF HEART LEARNING
... • Right and left bundle branches: extend beneath endocardium to apices of right and left ventricles • The Bundle of HIS can generate 30-40 signals a minute. ...
... • Right and left bundle branches: extend beneath endocardium to apices of right and left ventricles • The Bundle of HIS can generate 30-40 signals a minute. ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... reduction may decrease plasma renin activity and aldosterone levels. [13] Physical fitness is a .general state of health and well-being and, more specifically, the ability to perform aspects of sports or occupations. Physical fitness is generally achieved through correct nutrition, moderate to vigor ...
... reduction may decrease plasma renin activity and aldosterone levels. [13] Physical fitness is a .general state of health and well-being and, more specifically, the ability to perform aspects of sports or occupations. Physical fitness is generally achieved through correct nutrition, moderate to vigor ...
Regional differences in the Diameter of coronary Sinus among Black
... Figure 1: Photograph of heart showing the coronary sinus in the left atrio-ventricular groove. Note that the coronary sinus is formed by the confluence of great cardiac vein (GCV) and oblique vein of Marshall. LA-left atrium, LV-left ventricle, RA-right atrium, RVright ventricle The CS was divided i ...
... Figure 1: Photograph of heart showing the coronary sinus in the left atrio-ventricular groove. Note that the coronary sinus is formed by the confluence of great cardiac vein (GCV) and oblique vein of Marshall. LA-left atrium, LV-left ventricle, RA-right atrium, RVright ventricle The CS was divided i ...
Distribution of congenital heart disease in Turkey
... (13.1%) (4). Results of several studies from different countries show distributions similar to those in our study, with VSD (22.2%) being the most frequent congenital heart disease, followed by ASD (11.1%), PDA (9.2%), and PS (4.4%) (8-11). ...
... (13.1%) (4). Results of several studies from different countries show distributions similar to those in our study, with VSD (22.2%) being the most frequent congenital heart disease, followed by ASD (11.1%), PDA (9.2%), and PS (4.4%) (8-11). ...
Long-Term Survival with Cardiac Resynchronization Therapy in Mild
... Moderate to severe heart failure (NYHA Class III-IV) with EF ≤ 35% and QRS duration ≥ 120 ms Left bundle branch block (LBBB) with QRS ≥ 130 ms, EF ≤ 30%, and mild (NYHA Class II) ischemic or nonischemic heart failure or asymptomatic (NYHA Class I) ischemic heart failure Contraindications There a ...
... Moderate to severe heart failure (NYHA Class III-IV) with EF ≤ 35% and QRS duration ≥ 120 ms Left bundle branch block (LBBB) with QRS ≥ 130 ms, EF ≤ 30%, and mild (NYHA Class II) ischemic or nonischemic heart failure or asymptomatic (NYHA Class I) ischemic heart failure Contraindications There a ...
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.