Supraventricular Tachycardia - Children`s Heart Federation
... the atria via an additional (abnormal) pathway. This creates a circular movement of electrical signals from atria to ventricles and back. This causes the heart to race quite suddenly for seconds, minutes or hours usually without any trigger. ...
... the atria via an additional (abnormal) pathway. This creates a circular movement of electrical signals from atria to ventricles and back. This causes the heart to race quite suddenly for seconds, minutes or hours usually without any trigger. ...
Title goes here (Arial Narrow 28 pt) second line
... ‘An understanding of the basis of electrical activity of cardiac muscle and its relationship to basic mechanical events’ ● Bundle Branches ● Anatomy varies ● Right bundle extends down right side of interventricular septum to base of anterior papillary muscle where it divides ● Left bundle usually d ...
... ‘An understanding of the basis of electrical activity of cardiac muscle and its relationship to basic mechanical events’ ● Bundle Branches ● Anatomy varies ● Right bundle extends down right side of interventricular septum to base of anterior papillary muscle where it divides ● Left bundle usually d ...
Cardiac
... The purpose of reperfusion is to restore blood flow through a partially or fully obstructed coronary artery as early as possible in an attempt to minimise the extent and duration of myocardial ischaemia. ...
... The purpose of reperfusion is to restore blood flow through a partially or fully obstructed coronary artery as early as possible in an attempt to minimise the extent and duration of myocardial ischaemia. ...
![Heart sounds. Phonocardiogram. Carotidogram. []](http://s1.studyres.com/store/data/007908952_1-a6d5305206d60fd6ce288ec94dfea154-300x300.png)
Heart sounds. Phonocardiogram. Carotidogram. []
... 2.4. Pathological changes of the phonocardiogram (PC) - heart murmurs: represent abnormal, extra sounds with a relatively long duration (over 0.15 sec). These pathological heart sounds can be generated by turbulent flow, blood passage through valves with reduced diameters, or increased velocity of b ...
... 2.4. Pathological changes of the phonocardiogram (PC) - heart murmurs: represent abnormal, extra sounds with a relatively long duration (over 0.15 sec). These pathological heart sounds can be generated by turbulent flow, blood passage through valves with reduced diameters, or increased velocity of b ...
Tasers Circulation-2013-Zipes-e261-2
... Drs Vilke, Chan, and Karch question the “clinically healthy” wording I explained in a published correction for my article3 to mean clinically healthy from a cardiovascular standpoint without manifest cardiovascular symptoms. They suggest that several people may have had cardiac pathology. If true, u ...
... Drs Vilke, Chan, and Karch question the “clinically healthy” wording I explained in a published correction for my article3 to mean clinically healthy from a cardiovascular standpoint without manifest cardiovascular symptoms. They suggest that several people may have had cardiac pathology. If true, u ...
White Paper - AllMed Healthcare Management
... post-procedure complications. However, it should be noted that one of the main reasons that these ICDs did not fall under the guidelines was because they were implanted too soon. Many patients who received ICDs outside of the guidelines had low heart function and were at high risk of deadly heart rh ...
... post-procedure complications. However, it should be noted that one of the main reasons that these ICDs did not fall under the guidelines was because they were implanted too soon. Many patients who received ICDs outside of the guidelines had low heart function and were at high risk of deadly heart rh ...
Atrial Fibrillation, the Arrhythmia of the Elderly
... patients (approximately 70%) associated with chronic organic heart disease including valvular heart disease, coronary artery disease, hypertension, particularly if left ventricular hypertrophy is present, hypertrophic cardiomyopathy, dilated cardiomyopathy and congenital heart disease and most commo ...
... patients (approximately 70%) associated with chronic organic heart disease including valvular heart disease, coronary artery disease, hypertension, particularly if left ventricular hypertrophy is present, hypertrophic cardiomyopathy, dilated cardiomyopathy and congenital heart disease and most commo ...
HAP Discovery 14
... 2. Orient the heart with the right and left auricles pointing upwards in the dissection pan. There will be cleft that runs from the bottom right side of the heart to the upper left hand side of the heart, this is called the sulcus. 3. At this time you should locate the positions of the right atrium, ...
... 2. Orient the heart with the right and left auricles pointing upwards in the dissection pan. There will be cleft that runs from the bottom right side of the heart to the upper left hand side of the heart, this is called the sulcus. 3. At this time you should locate the positions of the right atrium, ...
MCQ 1
... a) may be carried out by skeletal, smooth or cardiac muscle or by glands b) is not influenced by higher centres in the brain c) results from activity in at least two central nervous synapses in series d) may involve simultaneous contraction of some skeletal muscles and relaxation of others e) can be ...
... a) may be carried out by skeletal, smooth or cardiac muscle or by glands b) is not influenced by higher centres in the brain c) results from activity in at least two central nervous synapses in series d) may involve simultaneous contraction of some skeletal muscles and relaxation of others e) can be ...
Blood Pressure and Pulse Rate
... as the blood is pushed through the capillaries. Then a new ventricular contraction repressurizes the system. This rhythmic change in arterial pressure is called the pulse and can be felt almost anywhere an artery can be pressed by a finger. If you exercise vigorously, the rate of your heartbeat, tha ...
... as the blood is pushed through the capillaries. Then a new ventricular contraction repressurizes the system. This rhythmic change in arterial pressure is called the pulse and can be felt almost anywhere an artery can be pressed by a finger. If you exercise vigorously, the rate of your heartbeat, tha ...
5 Comparative Cardiac Anatomy
... reducing infarct size. However, a detailed understanding of the coronary arterial anatomy was either lacking or overlooked at the time; subsequently, it was shown that dogs have a much more extensive coronary collateral circulation relative to humans (Fig. 1). Thus, even when major coronary arteries ...
... reducing infarct size. However, a detailed understanding of the coronary arterial anatomy was either lacking or overlooked at the time; subsequently, it was shown that dogs have a much more extensive coronary collateral circulation relative to humans (Fig. 1). Thus, even when major coronary arteries ...
CATS Clinical guideline Septic shock For every hour that a child
... haemodynamic status within the first fews hours of critical illness has a profound effect in reducing subsequent organ failure and improving over all survival. Children in septic shock are consistently under-resuscitated in the first few hours. ...
... haemodynamic status within the first fews hours of critical illness has a profound effect in reducing subsequent organ failure and improving over all survival. Children in septic shock are consistently under-resuscitated in the first few hours. ...
Chapter 5
... 1. Maintain the head tilt with one hand on the victim’s forehead, and place the first two fingers of other hand on the larynx (voice box). 2. Locate the carotid artery. 3. Exert only gentle pressure to avoid compressing the carotid artery, and feel for a pulse for as long as 10 seconds. 4. While che ...
... 1. Maintain the head tilt with one hand on the victim’s forehead, and place the first two fingers of other hand on the larynx (voice box). 2. Locate the carotid artery. 3. Exert only gentle pressure to avoid compressing the carotid artery, and feel for a pulse for as long as 10 seconds. 4. While che ...
The Enigma of β2-Adrenergic Receptor Gi Signaling in the Heart
... insults. For instance, agonist-induced 2AR stimulation prevents catecholamine-, hypoxia-, or reactive oxygen species (ROS)induced apoptotic death in both neonatal and adult rat cardiomyocytes.4 – 6 Moreover, in adult mice lacking the native 2AR, stimulation of the native 1AR by catecholamine caus ...
... insults. For instance, agonist-induced 2AR stimulation prevents catecholamine-, hypoxia-, or reactive oxygen species (ROS)induced apoptotic death in both neonatal and adult rat cardiomyocytes.4 – 6 Moreover, in adult mice lacking the native 2AR, stimulation of the native 1AR by catecholamine caus ...
The Physiological and Evolutionary Significance of
... Regulation of pulmonary and systemic vascular resistances results from changes in autonomic tone and the release of neurohumoral factors. In addition, these combined factors also influence heart rate, ventricular contractility, and ventricular blood volumes, which together can contribute to the size ...
... Regulation of pulmonary and systemic vascular resistances results from changes in autonomic tone and the release of neurohumoral factors. In addition, these combined factors also influence heart rate, ventricular contractility, and ventricular blood volumes, which together can contribute to the size ...
left main stem coronary artery stenosis
... occurred in 21 patients (70%) and double vessel disease in 2 patients (7%). Significant co-morbid factors included hypertension (80%), diabetes mellitus (43%), and smoking (23.3%). All the patients were operated as an emergency. Average grafts per patient were 3.1. All patients were considered for L ...
... occurred in 21 patients (70%) and double vessel disease in 2 patients (7%). Significant co-morbid factors included hypertension (80%), diabetes mellitus (43%), and smoking (23.3%). All the patients were operated as an emergency. Average grafts per patient were 3.1. All patients were considered for L ...
Evidence Based Medicine Examples
... • Stress perfusion CMR has been incorporated in daily practice. Data on its prognostic value are preliminary. • Methods • Dipyridamole stress CMR was performed in 420 patients with chest pain and known or suspected coronary artery disease. The extent (number of segments according to the 17-segment m ...
... • Stress perfusion CMR has been incorporated in daily practice. Data on its prognostic value are preliminary. • Methods • Dipyridamole stress CMR was performed in 420 patients with chest pain and known or suspected coronary artery disease. The extent (number of segments according to the 17-segment m ...
Measuring Left Ventricular Volumes in Two
... are absolutely crucial for precise determination of a wide variety of variables along with their correlations used during the assessment of left ventricular function (3-9), the 2D echocardiography is the most commonly used approach for such measurements. To typify universal cardiac functions, a sign ...
... are absolutely crucial for precise determination of a wide variety of variables along with their correlations used during the assessment of left ventricular function (3-9), the 2D echocardiography is the most commonly used approach for such measurements. To typify universal cardiac functions, a sign ...
The Inability to Identify the Top-class Athletes Based on Heart Rate
... gymnastics (1). Athletes were divided by the level of sportsmanship into two groups: 1.Sportsmen of top-class, 16 persons: honored master of sports - (4), the master of sports of international class - (12). 2. Athletes are not of top-class, 87: master of sports - (23), a candidate for master of spor ...
... gymnastics (1). Athletes were divided by the level of sportsmanship into two groups: 1.Sportsmen of top-class, 16 persons: honored master of sports - (4), the master of sports of international class - (12). 2. Athletes are not of top-class, 87: master of sports - (23), a candidate for master of spor ...
File
... • Starts with the aorta(largest artery) which begins at the left ventricle. • Divide into small arteries and arterioles until they reach capillary network. ...
... • Starts with the aorta(largest artery) which begins at the left ventricle. • Divide into small arteries and arterioles until they reach capillary network. ...
The Evolution of the Electrocardiogram in the Developing Head
... not reach the ventricles. Information from fetal electrocardiograms indicates that definable complexes, usually only QRS complexes, first appear on the fetal electrocardiogram between 10 and 12 weeks of embryonic age3. This suggests t, hat the cardiac rhythm in the early stages of development of the ...
... not reach the ventricles. Information from fetal electrocardiograms indicates that definable complexes, usually only QRS complexes, first appear on the fetal electrocardiogram between 10 and 12 weeks of embryonic age3. This suggests t, hat the cardiac rhythm in the early stages of development of the ...
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.