Why was the great Greek physician Galen unable to figure out that
... Charles Harris, a professor of the medical humanities, in his 1973 book The Heart and the Vascular System in Ancient Greek Medicine, examines the pieces of the puzzle that Galen held: Galen knew that the heart was associated with the pulsing of the arteries. He knew that the arteries and the veins r ...
... Charles Harris, a professor of the medical humanities, in his 1973 book The Heart and the Vascular System in Ancient Greek Medicine, examines the pieces of the puzzle that Galen held: Galen knew that the heart was associated with the pulsing of the arteries. He knew that the arteries and the veins r ...
Atrial Septal Defect and the CardioSEAL™ Device
... implant device developed and manufactured by Nitinol Medical Technologies, Inc. It is a “double umbrella” with Dacron fabric attached to metal arms. These arms place the device over the defect and hold the device in place until tissue grows over it. HISTORY: The CardioSEAL™ device is the second gene ...
... implant device developed and manufactured by Nitinol Medical Technologies, Inc. It is a “double umbrella” with Dacron fabric attached to metal arms. These arms place the device over the defect and hold the device in place until tissue grows over it. HISTORY: The CardioSEAL™ device is the second gene ...
EKG Training - 2017 HSTEA Winter Conference
... • Transmembrane potential – electrical difference between the inside and outside of the cell • Action potential – changes that occur during the process of depolarization and repolarization within a cell as activated by electrical impulse • Refractory period – time during which the cell is unable to ...
... • Transmembrane potential – electrical difference between the inside and outside of the cell • Action potential – changes that occur during the process of depolarization and repolarization within a cell as activated by electrical impulse • Refractory period – time during which the cell is unable to ...
- Wiley Online Library
... with HCM. The diagnosis of MVHOCM (midcavitary gradient ≥30 mmHg) was observed in 46 patients. This group was more symptomatic and with a greater tendency to sudden cardiac death (SCD). The formation of apical aneurysm was a marker of fatal arrhythmias. The following risk markers for SCD are present ...
... with HCM. The diagnosis of MVHOCM (midcavitary gradient ≥30 mmHg) was observed in 46 patients. This group was more symptomatic and with a greater tendency to sudden cardiac death (SCD). The formation of apical aneurysm was a marker of fatal arrhythmias. The following risk markers for SCD are present ...
File
... > Subscript (f) stands for funny current because scientists did not understand them - If Channel opens at negative membrane potential: > Na+ influx exceeds K+ efflux > Net influx of positive charge depolarizes autorhythmic cell > As membrane becomes more, If channels close and Ca2+ channels open > C ...
... > Subscript (f) stands for funny current because scientists did not understand them - If Channel opens at negative membrane potential: > Na+ influx exceeds K+ efflux > Net influx of positive charge depolarizes autorhythmic cell > As membrane becomes more, If channels close and Ca2+ channels open > C ...
Aortic Stenosis Fact Sheets
... traditional open-chest surgery, a procedure called transcatheter aortic valve replacement (TAVR) is available as a treatment option. The Edwards SAPIEN Transcatheter Heart Valve is approved by the U.S. Food and Drug Administration (FDA) as a therapy for patients with severe symptomatic native aortic ...
... traditional open-chest surgery, a procedure called transcatheter aortic valve replacement (TAVR) is available as a treatment option. The Edwards SAPIEN Transcatheter Heart Valve is approved by the U.S. Food and Drug Administration (FDA) as a therapy for patients with severe symptomatic native aortic ...
THE HEART AND CIRCULATION
... any other muscle in the body and needs a much richer blood supply than other muscles. The heart supplies blood to itself through two coronary arteries, the right and the left, which leave the aorta about 1/2 inch above the aortic valve and run around the outside of the heart. Both arteries lie in gr ...
... any other muscle in the body and needs a much richer blood supply than other muscles. The heart supplies blood to itself through two coronary arteries, the right and the left, which leave the aorta about 1/2 inch above the aortic valve and run around the outside of the heart. Both arteries lie in gr ...
Unusual cause ofpraecordial pansystolic murmur
... The association of cardiac murmurs and preexcitation has been reported by several authors (Bergland et al., I966). On the other hand, transient praecordial murmurs have been associated with anomalous bands of the left ventricle (Roberts, 1969). This report describes briefly a patient with extensive ...
... The association of cardiac murmurs and preexcitation has been reported by several authors (Bergland et al., I966). On the other hand, transient praecordial murmurs have been associated with anomalous bands of the left ventricle (Roberts, 1969). This report describes briefly a patient with extensive ...
"Design and Control of Motion Compensation Cardiac
... This project is intended to revolutionize cardiac ablations and surgeries. ...
... This project is intended to revolutionize cardiac ablations and surgeries. ...
Nerve activates contraction - Chicagoland Jewish High School
... • The left ventricle pumps oxygen-rich blood out to the body tissues through the systemic circulation. • Blood leaves the left ventricle via (6) the aorta, which conveys blood to arteries leading throughout the body. • The first branches from the aorta are the coronary arteries, which supply blood ...
... • The left ventricle pumps oxygen-rich blood out to the body tissues through the systemic circulation. • Blood leaves the left ventricle via (6) the aorta, which conveys blood to arteries leading throughout the body. • The first branches from the aorta are the coronary arteries, which supply blood ...
curriculum vitae - Gulf Job Seeker
... Hospital, Dubai, performed a most demanding and therefore not usually opted for procedure called Total Arterial Revascularization Triple Bypass Surgery on Beating Heart using a composite conduit (LIMA-RADIAL `Y'). The operation, which was done recently, was a complete success. The chief cardiac surg ...
... Hospital, Dubai, performed a most demanding and therefore not usually opted for procedure called Total Arterial Revascularization Triple Bypass Surgery on Beating Heart using a composite conduit (LIMA-RADIAL `Y'). The operation, which was done recently, was a complete success. The chief cardiac surg ...
VANDERBILT HEART AND VASCULAR INSTITUTE
... In 2016, the Vanderbilt Heart and Vascular Institute (VHVI) saw continued growth of its innovative clinical and research programs. This issue of Vanderbilt Heart highlights several of these initiatives. On page 4, Dr. Joshua Beckman describes the new Section of Vascular Medicine. In collaboration wi ...
... In 2016, the Vanderbilt Heart and Vascular Institute (VHVI) saw continued growth of its innovative clinical and research programs. This issue of Vanderbilt Heart highlights several of these initiatives. On page 4, Dr. Joshua Beckman describes the new Section of Vascular Medicine. In collaboration wi ...
Renal system
... a. Adrenal medulla hormones: NE and EPI. NE is a vasoconstrictor. EPI increase cardiac output by increasing cardiac muscle contractility b. Atrial natriuretic peptide (ANP): Atrial peptide hormone reduces blood pressure by antagonizing aldosterone. It increases water excretion from kidney. c. Antidi ...
... a. Adrenal medulla hormones: NE and EPI. NE is a vasoconstrictor. EPI increase cardiac output by increasing cardiac muscle contractility b. Atrial natriuretic peptide (ANP): Atrial peptide hormone reduces blood pressure by antagonizing aldosterone. It increases water excretion from kidney. c. Antidi ...
Collison 2014
... Born and schooled in Bangalore, I completed my MBBS and MS from CMC Vellore, before moving to Escorts Heart Institute and Research Centre, New Delhi in 2002 for cardiac surgery training. I worked at this world renowned hospital for 9 years, where I gained wide exposure to the practical aspects of ca ...
... Born and schooled in Bangalore, I completed my MBBS and MS from CMC Vellore, before moving to Escorts Heart Institute and Research Centre, New Delhi in 2002 for cardiac surgery training. I worked at this world renowned hospital for 9 years, where I gained wide exposure to the practical aspects of ca ...
(1%) patients who were lost to follow
... Figure 2. Adjusted Hazard Ratios for Self-Reported Diagnosed Diabetes and Coronary Heart Disease, Ischemic Stroke, and Death from Any Cause, According to the Baseline Glycated Hemoglobin Value. The hazard ratios are per each absolute increase of 1 percentage point in the glycated hemoglobin value ...
... Figure 2. Adjusted Hazard Ratios for Self-Reported Diagnosed Diabetes and Coronary Heart Disease, Ischemic Stroke, and Death from Any Cause, According to the Baseline Glycated Hemoglobin Value. The hazard ratios are per each absolute increase of 1 percentage point in the glycated hemoglobin value ...
Interpreting ECGs with Confidence: Part 2
... SVT (Figure 4) is an infrequent arrhythmia defined as 3 or more SV beats in succession. SVT is usually associated with significant heart 4 disease and atrial enlargement. A unique form of SVT is associated with an accessory pathway connecting the atria and ventricles. When occurring as a paroxysm, t ...
... SVT (Figure 4) is an infrequent arrhythmia defined as 3 or more SV beats in succession. SVT is usually associated with significant heart 4 disease and atrial enlargement. A unique form of SVT is associated with an accessory pathway connecting the atria and ventricles. When occurring as a paroxysm, t ...
3 stages
... intoxication, fever, anemia. In healthy people, it occurs in the emotional and physical stress. As noncardiac causes of sinus tachycardia may be an imbalance of autonomic nervous system tone dominated sympathic. There clinically manifested sinus tachycardia palpitations, feeling of heaviness in the ...
... intoxication, fever, anemia. In healthy people, it occurs in the emotional and physical stress. As noncardiac causes of sinus tachycardia may be an imbalance of autonomic nervous system tone dominated sympathic. There clinically manifested sinus tachycardia palpitations, feeling of heaviness in the ...
About the heart - Cardiomyopathy UK
... may feel overwhelmed. You may have read information about the condition that has really worried you. It is natural to have lots of questions, and you may want to talk to someone who understands. Although the possibility of a diagnosis of cardiomyopathy may feel devastating, with the right informatio ...
... may feel overwhelmed. You may have read information about the condition that has really worried you. It is natural to have lots of questions, and you may want to talk to someone who understands. Although the possibility of a diagnosis of cardiomyopathy may feel devastating, with the right informatio ...
amyloidosis
... 6 weeks after discharge, the patient was readmitted. Her edema began increase, with worsening dyspnea and more frequent anginal attacks. TT 37,1 C, BP 110/50, P 68, grade 3 systolic murmer over precordium and at the apex. The spleen was palpated 9 cm below the costal margin. Peripheral edema, vibrat ...
... 6 weeks after discharge, the patient was readmitted. Her edema began increase, with worsening dyspnea and more frequent anginal attacks. TT 37,1 C, BP 110/50, P 68, grade 3 systolic murmer over precordium and at the apex. The spleen was palpated 9 cm below the costal margin. Peripheral edema, vibrat ...
DOC (Eng)
... located in the oval fossa. The rarity of cardiac tumors (0.002-0.005% of all autopsies) is explained by a cardiac muscle metabolism, limited lymphatic connections as well as the fact that damage to the myocardium initiates degenerative processes. The etiology of a mixoma is not completely clear. The ...
... located in the oval fossa. The rarity of cardiac tumors (0.002-0.005% of all autopsies) is explained by a cardiac muscle metabolism, limited lymphatic connections as well as the fact that damage to the myocardium initiates degenerative processes. The etiology of a mixoma is not completely clear. The ...
Manuscript
... rate, including emotion/mood, body position, fitness, activity, temperature/weather, medication, and even genes. There are nine main types of heart rates. The first and most common is a Normal Sinus Rhythm, which ranges from 60-100 beats per minute. Another common heart rate is Premature Ventricula ...
... rate, including emotion/mood, body position, fitness, activity, temperature/weather, medication, and even genes. There are nine main types of heart rates. The first and most common is a Normal Sinus Rhythm, which ranges from 60-100 beats per minute. Another common heart rate is Premature Ventricula ...
3 stages
... intoxication, fever, anemia. In healthy people, it occurs in the emotional and physical stress. As noncardiac causes of sinus tachycardia may be an imbalance of autonomic nervous system tone dominated sympathic. There clinically manifested sinus tachycardia palpitations, feeling of heaviness in the ...
... intoxication, fever, anemia. In healthy people, it occurs in the emotional and physical stress. As noncardiac causes of sinus tachycardia may be an imbalance of autonomic nervous system tone dominated sympathic. There clinically manifested sinus tachycardia palpitations, feeling of heaviness in the ...
Cardiac Resynchronization Therapy for€Mild Heart Failure
... or the American College of Cardiology. From the Tufts University School of Medicine, New England Cardiac ...
... or the American College of Cardiology. From the Tufts University School of Medicine, New England Cardiac ...
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.