Mechanisms of Cardiac Arrhythmias (PDF Available)
... increased rate of phase 4 depolarization [14]. When this occurs in the SA node, it can lead to an increase in heart rate, termed sinus tachycardia. This can be physiological, due to increased sympathetic tone during exercise, or pathophysiological, due to hypovolemia, ischemia, or electrolyte distur ...
... increased rate of phase 4 depolarization [14]. When this occurs in the SA node, it can lead to an increase in heart rate, termed sinus tachycardia. This can be physiological, due to increased sympathetic tone during exercise, or pathophysiological, due to hypovolemia, ischemia, or electrolyte distur ...
Group 2 etiologyCHF
... Generally, heart failure (HF) is a clinical syndrome that occurs in patients who have an abnormality in cardiac structure or function due to either inherited or acquired causes (Mann, 2008). These abnormalities lead to cardiac dysfunction which results in inadequate cardiac and systemic perfusion (B ...
... Generally, heart failure (HF) is a clinical syndrome that occurs in patients who have an abnormality in cardiac structure or function due to either inherited or acquired causes (Mann, 2008). These abnormalities lead to cardiac dysfunction which results in inadequate cardiac and systemic perfusion (B ...
Chapter 18 - DocShare.tips
... 1. Means of stimulation: ~1% of cardiac muscle cells are self excitable (automaticity or autorhythmicity) can initiate their own contraction and that of the rest of the heart 2. Organ vs. motor unit contraction: The heart contracts as a unit or not at all. How? _______ 3. Length of absolute refracto ...
... 1. Means of stimulation: ~1% of cardiac muscle cells are self excitable (automaticity or autorhythmicity) can initiate their own contraction and that of the rest of the heart 2. Organ vs. motor unit contraction: The heart contracts as a unit or not at all. How? _______ 3. Length of absolute refracto ...
Lab 4 Toad Heart Lab Protocol.pages
... (1835–1910) developed a perfusion solution (Ringer’s solution) that could sustain an isolated organ from a pithed animal. A classic example of this phenomenon is the frog heart, which will continue to beat in situ for several hours allowing for the study of basic cardiac functions. The heart is made ...
... (1835–1910) developed a perfusion solution (Ringer’s solution) that could sustain an isolated organ from a pithed animal. A classic example of this phenomenon is the frog heart, which will continue to beat in situ for several hours allowing for the study of basic cardiac functions. The heart is made ...
MANAGEMENT OF CHRONIC HEART FAILURE
... This is determined largely by the intrinsic strength and integrity of the muscle cells. Force of contraction is decreased by: • ischaemic heart disease (myocardial infarction or chronic severe ischaemia). • Specific disorders affecting heart muscle e.g. hypertension and myocarditis. • Disorders of h ...
... This is determined largely by the intrinsic strength and integrity of the muscle cells. Force of contraction is decreased by: • ischaemic heart disease (myocardial infarction or chronic severe ischaemia). • Specific disorders affecting heart muscle e.g. hypertension and myocarditis. • Disorders of h ...
Idiopathic ventricular tachycardia arising from the right ventricular apex
... that started while he was working at his desktop. Twelvelead ECG showed wide QRS complex tachycardia, left bundle with left superior axis morphology, late transition at a cycle length of 230 ms (Figure 1B). The tachycardia was haemodynamically well tolerated. Following failure to convert the patient ...
... that started while he was working at his desktop. Twelvelead ECG showed wide QRS complex tachycardia, left bundle with left superior axis morphology, late transition at a cycle length of 230 ms (Figure 1B). The tachycardia was haemodynamically well tolerated. Following failure to convert the patient ...
Chapter 21 - heart - Fullfrontalanatomy.com
... out by sympathetic ¶sympathetic fibers via vagus nerve) D. Echocardiogram (ECG, EKG) - measures the depolarization of the heart’s chambers. 1. Bradycardia: slow heartbeat: (Fewer than 60 heartbeats/min.) 2. Tachycardia: fast heart beat (more than 100 beats/min.) 3. Fibrillation: heart beats rapi ...
... out by sympathetic ¶sympathetic fibers via vagus nerve) D. Echocardiogram (ECG, EKG) - measures the depolarization of the heart’s chambers. 1. Bradycardia: slow heartbeat: (Fewer than 60 heartbeats/min.) 2. Tachycardia: fast heart beat (more than 100 beats/min.) 3. Fibrillation: heart beats rapi ...
Other Cardiac Conditions and the ECG
... • Acute blockage of one of the pulmonary arteries • Leads to obstruction of blood flow to the lung segment supplied by the artery • Produces large S wave in lead I, deep Q wave in lead III, inverted T wave in lead III – Called the S1 Q3 T3 pattern ...
... • Acute blockage of one of the pulmonary arteries • Leads to obstruction of blood flow to the lung segment supplied by the artery • Produces large S wave in lead I, deep Q wave in lead III, inverted T wave in lead III – Called the S1 Q3 T3 pattern ...
Icd 10 code for congestive heart failure with preserved ejection fraction
... preserved left ventricular ejection fraction (HFpEF). INTRODUCTION. Heart failure with preserved ejection fraction (HFpEF) is a clinical syndrome in which patients have symptoms and signs of HF with normal or near normal. Congestive heart failure occurs when the cardiac output is not adequate enough ...
... preserved left ventricular ejection fraction (HFpEF). INTRODUCTION. Heart failure with preserved ejection fraction (HFpEF) is a clinical syndrome in which patients have symptoms and signs of HF with normal or near normal. Congestive heart failure occurs when the cardiac output is not adequate enough ...
LVAD FactSheet020711final_THOR
... and is typically caused by persistent high blood pressure, heart attack, valve disease and other forms of heart disease or birth defects. Left untreated, the lack of adequate blood flow causes the organs to progressively fail, resulting in numerous medical complications that deteriorate a person’s q ...
... and is typically caused by persistent high blood pressure, heart attack, valve disease and other forms of heart disease or birth defects. Left untreated, the lack of adequate blood flow causes the organs to progressively fail, resulting in numerous medical complications that deteriorate a person’s q ...
Cardiology - Pericardial Effusion
... About the Diagnosis Pericardial effusion refers to an accumulation of fluid around the heart, within the pericardium. The pericardium is a membranous sac that surrounds the heart. When fluid accumulates slowly, the pericardium stretches and enlarges to accommodate the fluid. More rapid accumulation ...
... About the Diagnosis Pericardial effusion refers to an accumulation of fluid around the heart, within the pericardium. The pericardium is a membranous sac that surrounds the heart. When fluid accumulates slowly, the pericardium stretches and enlarges to accommodate the fluid. More rapid accumulation ...
Atrial Fibrillation - CardiacAndVascular.com
... be needed if a rapid heartbeat causes discomfort or decreased energy. Adults over age 75 with lone atrial fibrillation are still at risk for stroke and require treatment with anticoagulant medications. What are the complications of atrial fibrillation? Atrial fibrillation often causes shortness of b ...
... be needed if a rapid heartbeat causes discomfort or decreased energy. Adults over age 75 with lone atrial fibrillation are still at risk for stroke and require treatment with anticoagulant medications. What are the complications of atrial fibrillation? Atrial fibrillation often causes shortness of b ...
Aortic to right atrial fistula secondary to chronic ruptured sinus of
... less than 1% of patients undergoing open cardiac surgical procedures (1). Approximately 65-85% of SOVAs originate from the right sinus of Valsalva, while SOVAs originating from noncoronary (10-30%) ...
... less than 1% of patients undergoing open cardiac surgical procedures (1). Approximately 65-85% of SOVAs originate from the right sinus of Valsalva, while SOVAs originating from noncoronary (10-30%) ...
Cardiomyopathy - Society for Pediatric Anesthesia
... • Many anesthetics are myocardial depressants – Propofol • Decreases preload (dilates venous capacitance vessels) • Decreases afterload (SVR) • Decreased myocardial contractility ...
... • Many anesthetics are myocardial depressants – Propofol • Decreases preload (dilates venous capacitance vessels) • Decreases afterload (SVR) • Decreased myocardial contractility ...
the microscopical picture as identical with Kaposi`s sarcoma
... The patient was a well-built adult African male, aged about 38 years, who was admitted to the Salisbury Native Hospital. He complained that his feet and later his legs had begun to swell four months before and had become progressively worse until the time of his admission when it reached well up his ...
... The patient was a well-built adult African male, aged about 38 years, who was admitted to the Salisbury Native Hospital. He complained that his feet and later his legs had begun to swell four months before and had become progressively worse until the time of his admission when it reached well up his ...
S0735109711013441_mmc1
... Induction of cardiac hypertrophy in rats. Adult male Wistar rats (520±46g) were also used in this study. Left ventricular hypertrophy was induced at three weeks of age (body weight <60 g) according to previously described methods (1). The animals were anesthetized (pentobarbital 60 mg/kg), the thor ...
... Induction of cardiac hypertrophy in rats. Adult male Wistar rats (520±46g) were also used in this study. Left ventricular hypertrophy was induced at three weeks of age (body weight <60 g) according to previously described methods (1). The animals were anesthetized (pentobarbital 60 mg/kg), the thor ...
Corlentor : EPAR - Summary for the public
... How has Corlentor been studied? Corlentor has been studied in five main studies involving over 4,000 adults with long-term stable angina. The medicine was compared with placebo (a dummy treatment) in 360 patients, atenolol (a beta-blocker) in 939 patients and amlodipine (another medicine used to tre ...
... How has Corlentor been studied? Corlentor has been studied in five main studies involving over 4,000 adults with long-term stable angina. The medicine was compared with placebo (a dummy treatment) in 360 patients, atenolol (a beta-blocker) in 939 patients and amlodipine (another medicine used to tre ...
CATHETER ABLATION / EP STUDY What is it?
... An electrophysiology (EP) study is a test done in a hospital where electrode catheters (long wires) are introduced into the veins and placed under X-ray guidance into the heart. They (EP studies) are used to study abnormal heart rhythms under controlled situations to diagnose what the specific probl ...
... An electrophysiology (EP) study is a test done in a hospital where electrode catheters (long wires) are introduced into the veins and placed under X-ray guidance into the heart. They (EP studies) are used to study abnormal heart rhythms under controlled situations to diagnose what the specific probl ...
Laboratory 15 Electrocardiograph Lab (ECG) and Heart Sounds
... Discriminate between the two classic heart sounds and relate them to events in the ECG and cardiac cycle. ...
... Discriminate between the two classic heart sounds and relate them to events in the ECG and cardiac cycle. ...
Sport and Arrhythmogenic Right Ventricular Cardiomyopathy
... occur during exercise at low altitude and to cause right ventricular and atrial dilatation.(7,8) It is possible that the patients with ARVC who are prone to arrhythmias may also develop high pulmonary pressures during exercise, resulting in ventricular stretch with its electropathophysiological cons ...
... occur during exercise at low altitude and to cause right ventricular and atrial dilatation.(7,8) It is possible that the patients with ARVC who are prone to arrhythmias may also develop high pulmonary pressures during exercise, resulting in ventricular stretch with its electropathophysiological cons ...
Cardiovascular system
... Property of cardiac muscle to generate its own impulse. The SA-node initiates the impulse which is conducted to whole heart by other junctional tissues. The property of conducting the impulse is known as conductivity. Although the impulse in the heart comes through junctional tissue, each part of ca ...
... Property of cardiac muscle to generate its own impulse. The SA-node initiates the impulse which is conducted to whole heart by other junctional tissues. The property of conducting the impulse is known as conductivity. Although the impulse in the heart comes through junctional tissue, each part of ca ...
(preload, contractility and afterload) and heart failure
... Systolic failure: The heart looses it’s ability to contract or pump blood into the circulation. Diastolic failure: The heart looses it’s ability to relax because it becomes stiff. Heart cannot fill properly between each beat. ...
... Systolic failure: The heart looses it’s ability to contract or pump blood into the circulation. Diastolic failure: The heart looses it’s ability to relax because it becomes stiff. Heart cannot fill properly between each beat. ...
- SlideBoom
... CHF patients sometimes experience shortness of breath and weakness because insufficient levels of blood receive oxygenation. Patients with very poorly functioning hearts may become irritable or suffer other side effects of poor circulation, too, including swollen feet. ...
... CHF patients sometimes experience shortness of breath and weakness because insufficient levels of blood receive oxygenation. Patients with very poorly functioning hearts may become irritable or suffer other side effects of poor circulation, too, including swollen feet. ...
Copyright (c) 2015 Intel Corporation. All rights reserved. This library
... This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it wil ...
... This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it wil ...