A STUDY OF CORONARY DOMINANCE
... When both the nodal tissues are irrigated by the same coronary artery, in case of occlusion of that artery the effect of the ischaemia on the conducting system could be severe enough, to result in cardiac arrest. Hence incidence of the same coronary artery supplying both SA and AV nodal tissues was ...
... When both the nodal tissues are irrigated by the same coronary artery, in case of occlusion of that artery the effect of the ischaemia on the conducting system could be severe enough, to result in cardiac arrest. Hence incidence of the same coronary artery supplying both SA and AV nodal tissues was ...
Cardiovascular System
... against the inner walls of blood vessels anywhere in the cardiovascular system, although the term "blood pressure" usually refers to arterial pressure. ...
... against the inner walls of blood vessels anywhere in the cardiovascular system, although the term "blood pressure" usually refers to arterial pressure. ...
Heart to Heart: Strategizing an Evidence
... knowledgeable about how firefighting impacts the development of cardiovascular conditions, and how it can serve as a triggering event in individuals with underlying cardiovascular disease. The National Fallen Firefighters Foundation (NFFF) has emerged as a leading voice in occupational health and sa ...
... knowledgeable about how firefighting impacts the development of cardiovascular conditions, and how it can serve as a triggering event in individuals with underlying cardiovascular disease. The National Fallen Firefighters Foundation (NFFF) has emerged as a leading voice in occupational health and sa ...
The Psychological Impact of Test Results Following Diagnostic
... these variables were then compared between patients diagnosed with normal arteries and patients diagnosed with diseased arteries. Results: Compared to positive-testing patients, patients with normal test results reported significant changes toward more positive illness perceptions following testing, ...
... these variables were then compared between patients diagnosed with normal arteries and patients diagnosed with diseased arteries. Results: Compared to positive-testing patients, patients with normal test results reported significant changes toward more positive illness perceptions following testing, ...
BASIC ECG INTERPRETATION
... coordinated pattern which causes the atria to quiver rather than contract. This of course moves NO BLOOD. Blood still however moves between the atria and ventricles but only via passive filling such that you loose the 30% of ventricular filling given by the atrial kick. Different pacemaker sites ...
... coordinated pattern which causes the atria to quiver rather than contract. This of course moves NO BLOOD. Blood still however moves between the atria and ventricles but only via passive filling such that you loose the 30% of ventricular filling given by the atrial kick. Different pacemaker sites ...
Patient Information for the Medtronic CoreValve
... can occur as a result of your diseased aortic heart valve. For example, patients with severe AS may take medicines that help control irregular heartbeats or prevent blood clots. These medicines may help control your symptoms for a period of time; however, without aortic valve replacement, severe AS ...
... can occur as a result of your diseased aortic heart valve. For example, patients with severe AS may take medicines that help control irregular heartbeats or prevent blood clots. These medicines may help control your symptoms for a period of time; however, without aortic valve replacement, severe AS ...
Cardiovascular Risk Reduction in Patients with Type 2 Diabetes
... and exercise are often recommended. The Look AHEAD trial studied the benefits of weight loss and exercise in the treatment of T2DM through a randomized control trial involving more than 5000 overweight patients with T2DM. Patients were randomly assigned to intensive lifestyle interventions targeting ...
... and exercise are often recommended. The Look AHEAD trial studied the benefits of weight loss and exercise in the treatment of T2DM through a randomized control trial involving more than 5000 overweight patients with T2DM. Patients were randomly assigned to intensive lifestyle interventions targeting ...
Development of a cardiopulmonary mathematical model
... can be used to describe the veins with some adjustment. A higher value is assigned to the volume constant Φ as the capacitance is relatively constant and veins are more compliant than arteries. Nutrients and waste products exchange between blood and tissue in the capillaries, and for this reason, th ...
... can be used to describe the veins with some adjustment. A higher value is assigned to the volume constant Φ as the capacitance is relatively constant and veins are more compliant than arteries. Nutrients and waste products exchange between blood and tissue in the capillaries, and for this reason, th ...
Topic 2 - International School Bangkok
... Q is found by multiplying the heart rate (bpm) by the stroke volume (ml of blood/beat) HR increases in direct proportion to the increase in exercise intensity Initially Q increases as a result of both increase in HR and SV Maximal SV is achieved during sub-maximal work Any increase in Q ...
... Q is found by multiplying the heart rate (bpm) by the stroke volume (ml of blood/beat) HR increases in direct proportion to the increase in exercise intensity Initially Q increases as a result of both increase in HR and SV Maximal SV is achieved during sub-maximal work Any increase in Q ...
pdf
... In hypertrophic cardiomyopathy, the LV-RV myocardial thickness is increased without an underlying structural abnormality. It has been associated with maternal diabetes and often regresses during the first 6 months of life. Ventricular hypertrophy can also be seen because of increased afterload. Decr ...
... In hypertrophic cardiomyopathy, the LV-RV myocardial thickness is increased without an underlying structural abnormality. It has been associated with maternal diabetes and often regresses during the first 6 months of life. Ventricular hypertrophy can also be seen because of increased afterload. Decr ...
PDF - Herbert Publications
... SA nodal reentrant tachycardia or SANRT is an uncommon arrhythmia, that usually occurs in patients with structural heart disease [1]. In patients referred for electrophysiologic studies due to Electrocardiogram (EKG) showing a supraventricular tachycardia (SVT), SANRT comprises from 2 to 17 percent ...
... SA nodal reentrant tachycardia or SANRT is an uncommon arrhythmia, that usually occurs in patients with structural heart disease [1]. In patients referred for electrophysiologic studies due to Electrocardiogram (EKG) showing a supraventricular tachycardia (SVT), SANRT comprises from 2 to 17 percent ...
Left ventricular systolic and diastolic dyssynchrony
... Eugene B. WU and Cheuk-Man YU Li Ka Shing Institute of Health and Sciences, Institute of Vascular Medicine, Division of Cardiology, Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China ...
... Eugene B. WU and Cheuk-Man YU Li Ka Shing Institute of Health and Sciences, Institute of Vascular Medicine, Division of Cardiology, Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China ...
Assessment of Pulmonary Arterial Hypertension by Magnetic
... The RV diastolic function could be evaluated by analyzing the blood flow pattern through the tricuspid valve. As shown in Figure 8, 2 sets of velocity-encoded magnitude and phase images are acquired at the tricuspid valve level. The images are used to derive the flow curve, from which the early and ...
... The RV diastolic function could be evaluated by analyzing the blood flow pattern through the tricuspid valve. As shown in Figure 8, 2 sets of velocity-encoded magnitude and phase images are acquired at the tricuspid valve level. The images are used to derive the flow curve, from which the early and ...
June - North American - Congenital Cardiology Today
... more effective than medical therapy, to date, it has not been shown to positively impact survival and in fact, may result in significant long-term sequelae.15-16 Several recent large studies have suggested that ligation is independently associated with the development of chronic lung disease and neu ...
... more effective than medical therapy, to date, it has not been shown to positively impact survival and in fact, may result in significant long-term sequelae.15-16 Several recent large studies have suggested that ligation is independently associated with the development of chronic lung disease and neu ...
Atrial arrhythmias
... (like triggered activity) may result in atrial, junctional, or ventricular beats occurring singly, in pairs, in runs, or as a sustained ectopic rhythm. Common causes of reentry include myocardial ischemia or injury, hyperkalemia, and the presence of an accessory conduction pathway between the atria ...
... (like triggered activity) may result in atrial, junctional, or ventricular beats occurring singly, in pairs, in runs, or as a sustained ectopic rhythm. Common causes of reentry include myocardial ischemia or injury, hyperkalemia, and the presence of an accessory conduction pathway between the atria ...
Epicardial Pacing
... • Venous obstructions Leads generally more reliable than epicardial • Pace related impaired ventricular function. implants • Lead infections Procedure more easy • Lead extraction Less thresholds necessity Fast adaptation to new • Interaction with cardiac pacemaker systems valves • Impossible in some ...
... • Venous obstructions Leads generally more reliable than epicardial • Pace related impaired ventricular function. implants • Lead infections Procedure more easy • Lead extraction Less thresholds necessity Fast adaptation to new • Interaction with cardiac pacemaker systems valves • Impossible in some ...
Congestive Heart Failure
... • Seeing a counselor can help you with some of your worries and make you feel better. • Follow your exercise or activity plan doing things you enjoy. • Get a good night’s sleep. • Follow your treatment plan including taking your medicines as instructed. • Tell your doctor if you have any feelin ...
... • Seeing a counselor can help you with some of your worries and make you feel better. • Follow your exercise or activity plan doing things you enjoy. • Get a good night’s sleep. • Follow your treatment plan including taking your medicines as instructed. • Tell your doctor if you have any feelin ...
TotaI Excitation of the IsoIated Human Heart
... The crista supraventricularis is activated late; in the two hearts on which detailed information about the septal half of the crista supraventricularis can be given, excitation proceeded from the left side to the right, merging after about 45 msec with a front reaching the crista through the free wa ...
... The crista supraventricularis is activated late; in the two hearts on which detailed information about the septal half of the crista supraventricularis can be given, excitation proceeded from the left side to the right, merging after about 45 msec with a front reaching the crista through the free wa ...
Echocardiographic Evaluation of Orthotopic Heart Transplantation
... and infection play a dominant role in the mortality (16, 17), while the main causes of complications in the longterm survivors are chronic rejection and the side effects ...
... and infection play a dominant role in the mortality (16, 17), while the main causes of complications in the longterm survivors are chronic rejection and the side effects ...
11/4/16 - ERS 4 KIDS
... Can cause syncope -> torsades de pointes -> v. fib arrest Treatment = beta blockers ...
... Can cause syncope -> torsades de pointes -> v. fib arrest Treatment = beta blockers ...
... standard operation in nearly all institutions. In 1952, Lev1 first described maldevelopment of the left-sided cardiac structures in combination with a small ascending aorta and transverse arch. By 1958, Noonan and Nadas2 had defined the syndrome further to describe a variety of cardiac malformations ...
ТАШКЕНТСКАЯ МЕДИЦИНСКАЯ АКАДЕМИЯ
... Most often the source of increased production of electrical impulses atrioventricular node. The patient complains of frequent palpitations, discomfort in the chest. Sometimes there are pains in the heart, shortness of breath. Often accompanied by an attack of tachycardia dizziness, weakness. If the ...
... Most often the source of increased production of electrical impulses atrioventricular node. The patient complains of frequent palpitations, discomfort in the chest. Sometimes there are pains in the heart, shortness of breath. Often accompanied by an attack of tachycardia dizziness, weakness. If the ...
mmol/L
... • ‘If the creatine kinase concentration is markedly elevated (>10 times upper limit of normal), and myopathy is suspected or diagnosed, treatment should be discontinued’ • Monitoring of creatine kinase is required if patients of lipid-lowering medications have muscle symptoms BNF March 2001 p125 ...
... • ‘If the creatine kinase concentration is markedly elevated (>10 times upper limit of normal), and myopathy is suspected or diagnosed, treatment should be discontinued’ • Monitoring of creatine kinase is required if patients of lipid-lowering medications have muscle symptoms BNF March 2001 p125 ...
SVT
... Activity have been found as causes • Rates 120 to 150 • Usually 1:1 AVN conduction and persistence despite AV block • Usually from right atria (Ring of Fire) • Can be seen as an incisional tachycardia from previous surgery..i.e. ASD repair • May see remission in children so do not attempt ablation u ...
... Activity have been found as causes • Rates 120 to 150 • Usually 1:1 AVN conduction and persistence despite AV block • Usually from right atria (Ring of Fire) • Can be seen as an incisional tachycardia from previous surgery..i.e. ASD repair • May see remission in children so do not attempt ablation u ...
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.