Basic Pacing Concepts
... pacemaker ensures that the heart rate increases to provide additional cardiac output Adjusting Heart Rate to Activity Normal Heart Rate Rate Responsive Pacing Fixed-Rate Pacing ...
... pacemaker ensures that the heart rate increases to provide additional cardiac output Adjusting Heart Rate to Activity Normal Heart Rate Rate Responsive Pacing Fixed-Rate Pacing ...
Determination of Blood Volume in the Heart and Lungs
... passes the testing point (here called the primarily circulating indicator). (2) That maximum concentration at Point L is derived partly from the concentration of the indicator passing through the body for the second time (after having followed the shortest possible course through the body) and partl ...
... passes the testing point (here called the primarily circulating indicator). (2) That maximum concentration at Point L is derived partly from the concentration of the indicator passing through the body for the second time (after having followed the shortest possible course through the body) and partl ...
Arrhythmias and Dysrhythmias - American Academy of Family
... • In patients with nonvalvular AF, the CHA2DS2-VASc score is recommended for assessment of stroke risk. (Class 1: LOE B) January CT, Wann LS, Alpert JS, et al. 2014 AHA/ACC/HRS guideline for the management of patients with atrial fibrillation: a report of the American College of Cardiology/American ...
... • In patients with nonvalvular AF, the CHA2DS2-VASc score is recommended for assessment of stroke risk. (Class 1: LOE B) January CT, Wann LS, Alpert JS, et al. 2014 AHA/ACC/HRS guideline for the management of patients with atrial fibrillation: a report of the American College of Cardiology/American ...
the new zealand medical journal
... Results 930 patients were admitted with a suspected or definite ACS: 11% with a STsegment-elevation myocardial infarction (STEMI), 31% with a non-STEMI, 36% with unstable angina pectoris (UAP), and 22% with another cardiac or medical diagnosis. Cardiac investigations were limited: echocardiogram (20 ...
... Results 930 patients were admitted with a suspected or definite ACS: 11% with a STsegment-elevation myocardial infarction (STEMI), 31% with a non-STEMI, 36% with unstable angina pectoris (UAP), and 22% with another cardiac or medical diagnosis. Cardiac investigations were limited: echocardiogram (20 ...
Cor pulmonale - The Medical Post | Trusting Medicine
... Ventilation/perfusion (V/Q) scan or CT chest Hypercoagulability states evaluated by levels of proteins ...
... Ventilation/perfusion (V/Q) scan or CT chest Hypercoagulability states evaluated by levels of proteins ...
Anaesthetic Management Of Delivery In Patients With Heart Disease
... • 1st stage: T9-L1 • 2nd stage: S2-S4 • Operative delivery • Rectus muscles & parietal peritoneum innervated up to T6 • Block above T4 may block cardiac accelerator fibres ...
... • 1st stage: T9-L1 • 2nd stage: S2-S4 • Operative delivery • Rectus muscles & parietal peritoneum innervated up to T6 • Block above T4 may block cardiac accelerator fibres ...
A randomised placebo controlled trial of the effects of
... of hypertension in women. A rise in diastolic blood pressure and a steepening of the time dependent rise in systolic blood pressure occur in the postmenopause.4 Concurrently other adverse changes occur in cardiac risk factors including rises in LDL and insulin resistance, falls in HDL, and changes i ...
... of hypertension in women. A rise in diastolic blood pressure and a steepening of the time dependent rise in systolic blood pressure occur in the postmenopause.4 Concurrently other adverse changes occur in cardiac risk factors including rises in LDL and insulin resistance, falls in HDL, and changes i ...
File - Physiology At Large
... The Path of Blood Flow Through the Heart and Vasculature Anatomy of the Heart Electrical Activity of the Heart The Cardiac Cycle Cardiac Output and Its Control Dr. C. Gerin -F16 ...
... The Path of Blood Flow Through the Heart and Vasculature Anatomy of the Heart Electrical Activity of the Heart The Cardiac Cycle Cardiac Output and Its Control Dr. C. Gerin -F16 ...
Treatment of Congenital Complete Atrioventricular Heart Block With
... NLS is a passively acquired autoimmune condition with cutaneous erythematous lesions, congenital atrioventricular block, liver dysfunction, and hematological problems, due to transplacental passage of maternal anti-Ro/SSA and anti-La/SSB1 antibodies. The most serious manifestation of NLS is CHB whic ...
... NLS is a passively acquired autoimmune condition with cutaneous erythematous lesions, congenital atrioventricular block, liver dysfunction, and hematological problems, due to transplacental passage of maternal anti-Ro/SSA and anti-La/SSB1 antibodies. The most serious manifestation of NLS is CHB whic ...
Spatial relation of the right coronary artery to the cavotricuspid
... using a step-up protocoll starting at 30W with increments of 5W. The course of the RCA was tagged at the Ensite Verismo Workstation and segmentation data were exported for further analysis. Anatomical variations of the CTI were evaluated using multiplanar reconstructions of the CT-scans (Merge eFilm ...
... using a step-up protocoll starting at 30W with increments of 5W. The course of the RCA was tagged at the Ensite Verismo Workstation and segmentation data were exported for further analysis. Anatomical variations of the CTI were evaluated using multiplanar reconstructions of the CT-scans (Merge eFilm ...
The Weight of the Heart and Its Chambers in with and
... Over a few weeks and up to one year. (c) From one to three years. (d) Over three years. The diagnosis of hypertension was based upon a "fixed" diastolic blood pressure over 100 mm. and a systolic pressure over 150 mm. Hg prior to failure in patients without significant cardiac valvular lesions, anem ...
... Over a few weeks and up to one year. (c) From one to three years. (d) Over three years. The diagnosis of hypertension was based upon a "fixed" diastolic blood pressure over 100 mm. and a systolic pressure over 150 mm. Hg prior to failure in patients without significant cardiac valvular lesions, anem ...
Debt-free cardiac health - Journal of Cardiovascular Magnetic
... regarding internal work as a negative burden and external work as a positive expression of cardiac function, we show that hearts with a net energy debt cross over to failure, while hearts with a net positive energy expression function normally. Thus, EDebt provides additional information, since even ...
... regarding internal work as a negative burden and external work as a positive expression of cardiac function, we show that hearts with a net energy debt cross over to failure, while hearts with a net positive energy expression function normally. Thus, EDebt provides additional information, since even ...
Lipoma of the right atrium
... A 66-year-old asymptomatic woman with previous history of diabetes mellitus, coronary artery bypass, and an aortic valve-sparing operation for aortic root aneurysm (David I procedure) in 2005 was admitted to our hospital with the recent diagnosis of a right atrial mass detected by an outside transth ...
... A 66-year-old asymptomatic woman with previous history of diabetes mellitus, coronary artery bypass, and an aortic valve-sparing operation for aortic root aneurysm (David I procedure) in 2005 was admitted to our hospital with the recent diagnosis of a right atrial mass detected by an outside transth ...
Supraventricular Tachycardia in the Pediatric Trauma
... correlating with increased risk of arrhythmia.6 Children were not included in this study. However, trauma literature, as well as these studies, support that these laboratory tests rarely assist in diagnosis or treatment of cardiogenic shock in the ED.1 In a multiple injured patient who presents with ...
... correlating with increased risk of arrhythmia.6 Children were not included in this study. However, trauma literature, as well as these studies, support that these laboratory tests rarely assist in diagnosis or treatment of cardiogenic shock in the ED.1 In a multiple injured patient who presents with ...
Electrocardiographic changes in Chronic Obstructive Pulmonary
... indicator5. ECG abnormalities corresponding with raised PASP is present in patients long before they have the symptoms of right heart failure7,8. Recent studies in rats and humans have illustrated that even a mildly increased right ventricular pressure load is associated with substantial changes in ...
... indicator5. ECG abnormalities corresponding with raised PASP is present in patients long before they have the symptoms of right heart failure7,8. Recent studies in rats and humans have illustrated that even a mildly increased right ventricular pressure load is associated with substantial changes in ...
pressure - Warner Pacific College
... Cholesterol deposited beneath arterial endothelium forms plaques Fibrous tissue invasion; calcification Protrude into lumen and restrict blood flow May rupture: Rough surfaces cause clots Thrombus vs. embolus ...
... Cholesterol deposited beneath arterial endothelium forms plaques Fibrous tissue invasion; calcification Protrude into lumen and restrict blood flow May rupture: Rough surfaces cause clots Thrombus vs. embolus ...
Calcium channel blockers/antagonists
... • Vasodilator effect is maintained during chronic therapy in hypertensive patients ...
... • Vasodilator effect is maintained during chronic therapy in hypertensive patients ...
Complete atrioventricular block in an adult with congenitally
... heart disease. Usually, we insert a temporary pacing lead via femoral vein and IVC. Thus, we could find abnormal drainage of venous system and abnormal orientation of cardiac chambers and arteries. There is no problem in venous access for permanent pacemaker implantation because the connection betwe ...
... heart disease. Usually, we insert a temporary pacing lead via femoral vein and IVC. Thus, we could find abnormal drainage of venous system and abnormal orientation of cardiac chambers and arteries. There is no problem in venous access for permanent pacemaker implantation because the connection betwe ...
ECG signs of AV Blocks and Bundle Branch Blocks
... contact through myocardium. ECG finding in complete left bundle branch block (LBBB) or right bundle branch block (RBBB) is, prolongation of the QRS complex to or beyond 0.12s in duration. ...
... contact through myocardium. ECG finding in complete left bundle branch block (LBBB) or right bundle branch block (RBBB) is, prolongation of the QRS complex to or beyond 0.12s in duration. ...
- Wiley Online Library
... Heart failure with preserved ejection fraction (HFpEF) is a major and growing public health problem. Epidemiologic studies demonstrated that heart failure (HF) can be clinically diagnosed in patients with normal or preserved left ventricular ejection fraction. These patients are therefore termed as ...
... Heart failure with preserved ejection fraction (HFpEF) is a major and growing public health problem. Epidemiologic studies demonstrated that heart failure (HF) can be clinically diagnosed in patients with normal or preserved left ventricular ejection fraction. These patients are therefore termed as ...
The Great Masquerader Complete Heart Block
... in the electrophysiologic function of the myocardium. A high serum potassium level impairs the impulse conduction in purkinje fibers and ventricles more than that in the AV node. Therefore, although complete AV block (Complete Heart Block –CHB) can occur, it is a rare initial presentation. Here we p ...
... in the electrophysiologic function of the myocardium. A high serum potassium level impairs the impulse conduction in purkinje fibers and ventricles more than that in the AV node. Therefore, although complete AV block (Complete Heart Block –CHB) can occur, it is a rare initial presentation. Here we p ...
Congenital Absence of Right Superior Vena Cava
... Raymond F. Stainback, MD, Department of Adult Cardiology, Texas Heart Institute at St. Luke’s Episcopal Hospital, 6624 Fannin St., Suite 2480, Houston, TX 77030 ...
... Raymond F. Stainback, MD, Department of Adult Cardiology, Texas Heart Institute at St. Luke’s Episcopal Hospital, 6624 Fannin St., Suite 2480, Houston, TX 77030 ...
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.