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... the symptomatologies in such patients are predominantly those related to other organ involvement rather than related to cardiac involvement. Diagnosis of intracardiac metastasis is usually made during post mortem examination unless the patient presents clinically with obvious clinical signs of arrhy ...
... the symptomatologies in such patients are predominantly those related to other organ involvement rather than related to cardiac involvement. Diagnosis of intracardiac metastasis is usually made during post mortem examination unless the patient presents clinically with obvious clinical signs of arrhy ...
finger pulse rate measurement using a low-cost microcontroller
... rate at around 120 bpm, while older children have heart rates at around 90 bpm. The heart rate rises gradually during exercises [2] and returns slowly to the rest value after exercise. The rate when the pulse returns to normal is an indication of the fitness of the person. Lower than normal heart ra ...
... rate at around 120 bpm, while older children have heart rates at around 90 bpm. The heart rate rises gradually during exercises [2] and returns slowly to the rest value after exercise. The rate when the pulse returns to normal is an indication of the fitness of the person. Lower than normal heart ra ...
Chapter 15 The Cardiovascular System: Blood Vessels and
... Veins of the Systemic Circulation • Drain blood from entire body & return it to right side of heart • Deep veins parallel the arteries in the region • Superficial veins are found just beneath the skin • All venous blood drains to either superior or inferior vena cava or coronary sinus ...
... Veins of the Systemic Circulation • Drain blood from entire body & return it to right side of heart • Deep veins parallel the arteries in the region • Superficial veins are found just beneath the skin • All venous blood drains to either superior or inferior vena cava or coronary sinus ...
Cardiac Cycle
... • A.V. valve open causing filling of ventricles with blood. • Rapid filling consists of 3 portions/parts; 1/3 rapid filling occurs( 80% of atrial blood without contraction of atria), 2/3 some quantity of blood flows, 3/3 atrial contraction occurs (causing remaining 20% of blood to flow as well) ...
... • A.V. valve open causing filling of ventricles with blood. • Rapid filling consists of 3 portions/parts; 1/3 rapid filling occurs( 80% of atrial blood without contraction of atria), 2/3 some quantity of blood flows, 3/3 atrial contraction occurs (causing remaining 20% of blood to flow as well) ...
Management of diastolic heart failure
... days after the resolution of acute LV failure showed identical values of EF and WMSI with the only change being a reduction in systolic blood pressure (139 ± 17 mm Hg, p < 0.01). None of the patients was diagnosed with mitral regurgitation during the pulmonary edema episode. The selection of the age ...
... days after the resolution of acute LV failure showed identical values of EF and WMSI with the only change being a reduction in systolic blood pressure (139 ± 17 mm Hg, p < 0.01). None of the patients was diagnosed with mitral regurgitation during the pulmonary edema episode. The selection of the age ...
left main coronary artery disease in patients with atrial septal defects
... in the genesis of angina, left ventricular dysfunction, arrhythmias and/or sudden death in patients with pulmonary arterial hypertension. The natural history of this disease and its proper treatment, however, remain unclear.7 Bijl et al reported a patient with extrinsic LMCA compression suffered a n ...
... in the genesis of angina, left ventricular dysfunction, arrhythmias and/or sudden death in patients with pulmonary arterial hypertension. The natural history of this disease and its proper treatment, however, remain unclear.7 Bijl et al reported a patient with extrinsic LMCA compression suffered a n ...
Complete Revascularization in Patients with Severe Left Ventricular
... Methods: From April 1994 to May 2002, 42 patients who underwent coronary artery bypass grafting (CABG) at our institution had impaired left ventricular (LV) function [an ejection fraction (EF) of 30% or less]. The average preoperative LVEF was 23.8%. The mean number of grafts was 4.6. Complete revas ...
... Methods: From April 1994 to May 2002, 42 patients who underwent coronary artery bypass grafting (CABG) at our institution had impaired left ventricular (LV) function [an ejection fraction (EF) of 30% or less]. The average preoperative LVEF was 23.8%. The mean number of grafts was 4.6. Complete revas ...
New onset atrial fibrillation after initiating amphetamine
... the majority of the patients being of older age.[1] Wellestablished risk factors for atrial fibrillation include congestive heart failure, hypertension, diabetes mellitus, hyperthyroidism, structural heart defects and heavy alcohol use.[2] It is important to further identify risk factors and precipi ...
... the majority of the patients being of older age.[1] Wellestablished risk factors for atrial fibrillation include congestive heart failure, hypertension, diabetes mellitus, hyperthyroidism, structural heart defects and heavy alcohol use.[2] It is important to further identify risk factors and precipi ...
physiology of nerve and muscle cells
... The heart as a pump. Mechanical events of the cardiac cycle. Events in late diastole. Atrial systole. Ventricular diastole. Early diastole. Length of systole and diastole. Electrocardiography. Standard leads normal electrocardiogram in human (I, II, III). Unipolar (V1–V6) leads. Waves of ECG, nature ...
... The heart as a pump. Mechanical events of the cardiac cycle. Events in late diastole. Atrial systole. Ventricular diastole. Early diastole. Length of systole and diastole. Electrocardiography. Standard leads normal electrocardiogram in human (I, II, III). Unipolar (V1–V6) leads. Waves of ECG, nature ...
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... conduct electrical impulses very rapidly. Typically results when the heart’s demand for oxygen exceeds its supply from the coronary circulation Specialized nerve tissue located in the internal carotid arteries and the aortic arch that detect changes in blood pressure The _____ septum separates the r ...
... conduct electrical impulses very rapidly. Typically results when the heart’s demand for oxygen exceeds its supply from the coronary circulation Specialized nerve tissue located in the internal carotid arteries and the aortic arch that detect changes in blood pressure The _____ septum separates the r ...
Blood vessel health - Mayo Clinic Health Letter
... actions of all of these vessels. It helps regulate vascular function and thereby affects all of your organs. It secretes a number of substances — including nitric oxide — that are necessary to balance blood vessel function. Among its known functions, the endothelium: ■ Plays a role in regulating s ...
... actions of all of these vessels. It helps regulate vascular function and thereby affects all of your organs. It secretes a number of substances — including nitric oxide — that are necessary to balance blood vessel function. Among its known functions, the endothelium: ■ Plays a role in regulating s ...
Part 2 - BHS Education Resource
... Third degree block, Complete Heart Block, AV dissociation PR and QRS are dissociated, or electrically independent ...
... Third degree block, Complete Heart Block, AV dissociation PR and QRS are dissociated, or electrically independent ...
Honors Project 14: Measuring Cardiac Output
... Cardiac output is measured by a technique known as dye dilution: A known amount D of dye is injected into a main vein near the heart. Blood carrying the dye circulates through the right ventricle of the heart, to the lungs, through the left auricle and left ventricle of the heart, and then into the ...
... Cardiac output is measured by a technique known as dye dilution: A known amount D of dye is injected into a main vein near the heart. Blood carrying the dye circulates through the right ventricle of the heart, to the lungs, through the left auricle and left ventricle of the heart, and then into the ...
Tetralogy of Fallot
... as B-T (Blalock-Taussig) shunt may take place prior to this. Uncommonly, later repairs may occur in mild cases with delayed diagnosis. Post-surgical correction, TOF patients may present to anaesthetists for procedures related to their disease, such as pulmonary valve (PV) replacement, Implantable Ca ...
... as B-T (Blalock-Taussig) shunt may take place prior to this. Uncommonly, later repairs may occur in mild cases with delayed diagnosis. Post-surgical correction, TOF patients may present to anaesthetists for procedures related to their disease, such as pulmonary valve (PV) replacement, Implantable Ca ...
Dynamic Properties of Cardiovascular Systems 1. INTRODUCTION
... spectrum of dynamical behavior, from stable points through stable cycles to a .. chaotic" behavior. It is shown that such an analysis of dynamic behavior yields those domains in the parameter spacethat correspond to a normal and abnormal beating heart, when the heart ejects time-invariant and time-v ...
... spectrum of dynamical behavior, from stable points through stable cycles to a .. chaotic" behavior. It is shown that such an analysis of dynamic behavior yields those domains in the parameter spacethat correspond to a normal and abnormal beating heart, when the heart ejects time-invariant and time-v ...
PDF Article
... with am&graphically proved coronary artery disease, enrolled patients at 15 clinical sites in the United States and Canada between 1974and 1979(8). Before the initiation of patient recruitment, the CASS protocol was approved by each institution’s committee on human research. Consecutive patients who ...
... with am&graphically proved coronary artery disease, enrolled patients at 15 clinical sites in the United States and Canada between 1974and 1979(8). Before the initiation of patient recruitment, the CASS protocol was approved by each institution’s committee on human research. Consecutive patients who ...
ECGs and arrhythmia identification
... The electrocardiogram (ECG) was the first piece of monitoring equipment to be made compulsory in human medicine (Moens and Coppens 2011). In veterinary medicine it is an extremely useful pre anaesthetic, perioperative and diagnostic tool. The ECG can provide valuable information about the electrical ...
... The electrocardiogram (ECG) was the first piece of monitoring equipment to be made compulsory in human medicine (Moens and Coppens 2011). In veterinary medicine it is an extremely useful pre anaesthetic, perioperative and diagnostic tool. The ECG can provide valuable information about the electrical ...
The Systolic phase
... Cardiac output changes due to the intensity of exercises we do. increasing intensity of exercises increases oxygen the body needs , with the result that increase in cardiac output Volume of blood that heart ejects per minute: During rest 5 l/min, during light exercises10 l/min, during moderate exe ...
... Cardiac output changes due to the intensity of exercises we do. increasing intensity of exercises increases oxygen the body needs , with the result that increase in cardiac output Volume of blood that heart ejects per minute: During rest 5 l/min, during light exercises10 l/min, during moderate exe ...
Pulmonary Atresia and Intact Ventricular Septum
... correlates with the size of the RV cavity. (B) The caliber of the pulmonary arteries is usually diminished. (C) The myocardium of patients with PA/IVS can demonstrate ischemia, fibrosis, or infarction. (D) An inverse relationship exists between ventricular endocardial fibroelastosis and extens ...
... correlates with the size of the RV cavity. (B) The caliber of the pulmonary arteries is usually diminished. (C) The myocardium of patients with PA/IVS can demonstrate ischemia, fibrosis, or infarction. (D) An inverse relationship exists between ventricular endocardial fibroelastosis and extens ...
Chapter 5 Clinical Assessment Of cardiovascular Structure
... (a) Anomalous left coronary artery from the pulmonary artery. (b) Tetralogy of Fallot. (c) Dextro-transposition of the great arteries. (d) Total anomalous pulmonary venous drainage. ...
... (a) Anomalous left coronary artery from the pulmonary artery. (b) Tetralogy of Fallot. (c) Dextro-transposition of the great arteries. (d) Total anomalous pulmonary venous drainage. ...
Heart Rate (Fast and Easy ECGs, Shade / Wesley)
... Rate Calculators • Easy to use but not always available • Ineffective on irregular rhythms where a consistent baseline is not present • Position the “start mark” on an R wave • Then find the next consecutive R wave – where it lines up is the approximate heart rate ...
... Rate Calculators • Easy to use but not always available • Ineffective on irregular rhythms where a consistent baseline is not present • Position the “start mark” on an R wave • Then find the next consecutive R wave – where it lines up is the approximate heart rate ...
Myocardial infarction
Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, occurs when blood flow stops to a part of the heart causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it is in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms, with women more likely than men to present atypically. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, or cardiac arrest.Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol intake, among others. The mechanism of an MI often involves the rupture of an atherosclerotic plaque, leading to complete blockage of a coronary artery. MIs are less commonly caused by coronary artery spasms, which may be due to cocaine, significant emotional stress, and extreme cold, among others. A number of tests are useful to help with diagnosis, including electrocardiograms (ECGs), blood tests, and coronary angiography. An ECG may confirm an ST elevation MI if ST elevation is present. Commonly used blood tests include troponin and less often creatine kinase MB.Aspirin is an appropriate immediate treatment for a suspected MI. Nitroglycerin or opioids may be used to help with chest pain; however, they do not improve overall outcomes. Supplemental oxygen should be used in those with low oxygen levels or shortness of breath. In ST elevation MIs treatments which attempt to restore blood flow to the heart are typically recommended and include angioplasty, where the arteries are pushed open, or thrombolysis, where the blockage is removed using medications. People who have a non-ST elevation myocardial infarction (NSTEMI) are often managed with the blood thinner heparin, with the additional use angioplasty in those at high risk. In people with blockages of multiple coronary arteries and diabetes, bypass surgery (CABG) may be recommended rather than angioplasty. After an MI, lifestyle modifications, along with long term treatment with aspirin, beta blockers, and statins, are typically recommended.Worldwide, more than 3 million people have ST elevation MIs and 4 million have NSTEMIs each year. STEMIs occur about twice as often in men as women. About one million people have an MI each year in the United States. In the developed world the risk of death in those who have had an STEMI is about 10%. Rates of MI for a given age have decreased globally between 1990 and 2010.