Ventricular Ectopy - Civil Aviation Authority
... b) complex forms seen including non-sustained ventricular tachycardia c) long runs of bigeminy seen d) >20 VEBs per minute seen 2) By a cardiological specialist: 3) Exercise ECG - Bruce protocol and symptom limited. Requirements are at least 9 minutes and no significant ECG or blood pressure changes ...
... b) complex forms seen including non-sustained ventricular tachycardia c) long runs of bigeminy seen d) >20 VEBs per minute seen 2) By a cardiological specialist: 3) Exercise ECG - Bruce protocol and symptom limited. Requirements are at least 9 minutes and no significant ECG or blood pressure changes ...
Tetrology of fallot
... blood flow from MAPCAs, true pulmonary arteries (isolated supply), or both (dual supply). In addition, all points of stenosis in each MAPCA need to be identified ...
... blood flow from MAPCAs, true pulmonary arteries (isolated supply), or both (dual supply). In addition, all points of stenosis in each MAPCA need to be identified ...
Chapter 20: The Cardiovascular System: The Heart
... According to the Frank-Starling law of the heart, a greater preload (stretch) on cardiac muscle fibers just before they contract increases their force of contraction during systole. Preload is proportional to EDV. EDV is determined by length of ventricular diastole and venous return. The Frank-Starl ...
... According to the Frank-Starling law of the heart, a greater preload (stretch) on cardiac muscle fibers just before they contract increases their force of contraction during systole. Preload is proportional to EDV. EDV is determined by length of ventricular diastole and venous return. The Frank-Starl ...
general information
... Priebe and Beuckelmann, Circ Res 1998;82:1206-1223 Bernus et al., AJP Heart Circ Physiol 2002;282:H2296-H2308 ...
... Priebe and Beuckelmann, Circ Res 1998;82:1206-1223 Bernus et al., AJP Heart Circ Physiol 2002;282:H2296-H2308 ...
Chapter 20
... According to the Frank-Starling law of the heart, a greater preload (stretch) on cardiac muscle fibers just before they contract increases their force of contraction during systole. Preload is proportional to EDV. EDV is determined by length of ventricular diastole and venous return. The Frank-Starl ...
... According to the Frank-Starling law of the heart, a greater preload (stretch) on cardiac muscle fibers just before they contract increases their force of contraction during systole. Preload is proportional to EDV. EDV is determined by length of ventricular diastole and venous return. The Frank-Starl ...
07_01 - Assessment of Cardiovascular System
... Heart Sounds There are 2 basic normal heart sounds and several abnormal ones. Normal: S1 (produced by closure of the atrioventricular valves, mitral and tricuspid)- at mitral area and tricuspid area S1 is louder than S2. The sound is a dull, low pitched “lub.” S2 (produced by closure of aorti ...
... Heart Sounds There are 2 basic normal heart sounds and several abnormal ones. Normal: S1 (produced by closure of the atrioventricular valves, mitral and tricuspid)- at mitral area and tricuspid area S1 is louder than S2. The sound is a dull, low pitched “lub.” S2 (produced by closure of aorti ...
Segmental Approach to CHD and Evaluation of Intracardiac
... Steps in the segmental approach to heart disease • Anatomic type of each of the 3 major segments. For example {S,D,D}, {I,L,L}, {S,D,L} etc. • How each segment is connected to the adjacent segment (CAVC, DILV, TGA etc. ) • Associated anomalies within each segment, or between them (TAPVR, ASD, VSD, ...
... Steps in the segmental approach to heart disease • Anatomic type of each of the 3 major segments. For example {S,D,D}, {I,L,L}, {S,D,L} etc. • How each segment is connected to the adjacent segment (CAVC, DILV, TGA etc. ) • Associated anomalies within each segment, or between them (TAPVR, ASD, VSD, ...
Ventricular Tachycardia (VT) and Sudden Cardiac Arrest (SCA)
... * Hazard ratios for death from any cause in the ICD group compared with the non-ICD group. Includes only ICD and amiodarone patients from CASH. ‡CI Upper Bound 1.112 CI indicates Confidence Interval, NS = Not statistically significant, NSVT = nonsustained ventricular tachycardia, SAECG = signal-aver ...
... * Hazard ratios for death from any cause in the ICD group compared with the non-ICD group. Includes only ICD and amiodarone patients from CASH. ‡CI Upper Bound 1.112 CI indicates Confidence Interval, NS = Not statistically significant, NSVT = nonsustained ventricular tachycardia, SAECG = signal-aver ...
Improved Cardiac Output with Right Ventricular Septal Pacing in a
... A 55-year-old gentleman with ischemic cardiomyopathy and severe left ventricular dysfunction (ejection fraction 25%) received an implantable cardioverter defibrillator (ICD) for primary prevention of sudden cardiac death. Although he had New York Heart Association class II-III heart failure symptoms ...
... A 55-year-old gentleman with ischemic cardiomyopathy and severe left ventricular dysfunction (ejection fraction 25%) received an implantable cardioverter defibrillator (ICD) for primary prevention of sudden cardiac death. Although he had New York Heart Association class II-III heart failure symptoms ...
The Annals of Thoracic Surgery
... failure. This case argues that AAA should no longer be considered a contraindication for VAD implantation, provided the AAA repair is made before or simultaneously with device placement. Keywords: Aneurysm; Circulatory assist devices; Heart failure; Transplantation, heart; Vascular disease. ...
... failure. This case argues that AAA should no longer be considered a contraindication for VAD implantation, provided the AAA repair is made before or simultaneously with device placement. Keywords: Aneurysm; Circulatory assist devices; Heart failure; Transplantation, heart; Vascular disease. ...
A1987K475500001
... Geisinger Clinic Danville, PA 17822 April 17, 1987 In 1895 0. Langendorff published his very classic paper’ on the perfusion of isolated hearts by antigrade flow of a physiological salt solution down the cannulated aorta. Various modifications of this procedure are still in use, and they are commonl ...
... Geisinger Clinic Danville, PA 17822 April 17, 1987 In 1895 0. Langendorff published his very classic paper’ on the perfusion of isolated hearts by antigrade flow of a physiological salt solution down the cannulated aorta. Various modifications of this procedure are still in use, and they are commonl ...
Lecture 1
... • Subendocardial lesions, aggravated by regurgitant jets, may induce irregular thickenings called MacCallum plaques, usually in the left atrium. ...
... • Subendocardial lesions, aggravated by regurgitant jets, may induce irregular thickenings called MacCallum plaques, usually in the left atrium. ...
Cardiac Review
... segment becomes elevated in that lead. - When a lead sees the infarct from the opposite perspective, the ST segment may be depressed in that lead. - Reciprocal changes – not necessary to ...
... segment becomes elevated in that lead. - When a lead sees the infarct from the opposite perspective, the ST segment may be depressed in that lead. - Reciprocal changes – not necessary to ...
Full Text:PDF - The Turkish Journal of Pediatrics
... significantly shorter when compared to the patients on a gluten-free diet (Group 2) (p=0.002, p=0.015, respectively) and the diastolic cardiac function parameters were much more affected in the newly diagnosed Celiac patients. The limitations of our study are the sample size and the cross-sectional ...
... significantly shorter when compared to the patients on a gluten-free diet (Group 2) (p=0.002, p=0.015, respectively) and the diastolic cardiac function parameters were much more affected in the newly diagnosed Celiac patients. The limitations of our study are the sample size and the cross-sectional ...
CRT Overview - February 2004
... Cardiac Resynchronization Therapy • Cardiac resynchronization, in association with an optimized AV delay, improves hemodynamic performance by forcing the left ventricle to complete contraction and begin relaxation earlier, allowing an increase in ventricular filling time. • Coordinate activation of ...
... Cardiac Resynchronization Therapy • Cardiac resynchronization, in association with an optimized AV delay, improves hemodynamic performance by forcing the left ventricle to complete contraction and begin relaxation earlier, allowing an increase in ventricular filling time. • Coordinate activation of ...
Atherosclerosis
... interleukin-1, tumour necrosis factor-alpha, interferon-gamma, plateletderived growth factors, and matrix metalloproteinases are released by activated macrophages; they cause the intimal smooth muscle cells overlying the plaque to become senescent and collagen cross-struts within the plaque to degra ...
... interleukin-1, tumour necrosis factor-alpha, interferon-gamma, plateletderived growth factors, and matrix metalloproteinases are released by activated macrophages; they cause the intimal smooth muscle cells overlying the plaque to become senescent and collagen cross-struts within the plaque to degra ...
Management of chronic heart failure
... - patients with heart failure and atrial fibrillation. - patients with severe heart failure, digoxin reduces the likelihood of hospitalisation for heart failure Statin therapy is recommended in CHF for the secondary prevention of cardiovascular disease. Some studies have shown a possible benefit s ...
... - patients with heart failure and atrial fibrillation. - patients with severe heart failure, digoxin reduces the likelihood of hospitalisation for heart failure Statin therapy is recommended in CHF for the secondary prevention of cardiovascular disease. Some studies have shown a possible benefit s ...
Late Ventricular Diastole
... semilunar valves close When ventricular pressure is less than atrial pressure, the atrioventricular valves open ; the ventricles begin to fill Isovolumetric Period of Relaxation ...
... semilunar valves close When ventricular pressure is less than atrial pressure, the atrioventricular valves open ; the ventricles begin to fill Isovolumetric Period of Relaxation ...
The Heart - LSH Student Resources
... Complete – large combined AV septal defect and a common AV valve – all 4 ...
... Complete – large combined AV septal defect and a common AV valve – all 4 ...
Cardiac Function
... • AV valve opens as atrial exceeds ventricular pressure and ventricular filling begins – rapid at first and then slows*** ***insures that filling is not impaired during exercise when heart rate is high and time in diastole is decreasing – Blood enters the atrium from the pulmonary veins so ventricle ...
... • AV valve opens as atrial exceeds ventricular pressure and ventricular filling begins – rapid at first and then slows*** ***insures that filling is not impaired during exercise when heart rate is high and time in diastole is decreasing – Blood enters the atrium from the pulmonary veins so ventricle ...
CV Pathophysiology
... fibers at the time of stimulation…more stretch = greater force of contraction b. Preload = ventricular wall stress at the end of diastole…in other words the stretch of the wall after diastolic filling ...
... fibers at the time of stimulation…more stretch = greater force of contraction b. Preload = ventricular wall stress at the end of diastole…in other words the stretch of the wall after diastolic filling ...
Diagnostic and Therapeutic Procedures
... achieved, the nature of induced chest pain, the maximum amount of ST-segment depression, changes in heart rate and blood pressure, and other parameters should be recorded as structured data. However, from an electronic health record perspective (the subject of this document), the data elements we ha ...
... achieved, the nature of induced chest pain, the maximum amount of ST-segment depression, changes in heart rate and blood pressure, and other parameters should be recorded as structured data. However, from an electronic health record perspective (the subject of this document), the data elements we ha ...
www.sjhg.org
... can result from any structural or functional cardiac disorder that impairs ability of ventricle to fill with or eject blood Impact! ...
... can result from any structural or functional cardiac disorder that impairs ability of ventricle to fill with or eject blood Impact! ...
Hypertrophic cardiomyopathy
Hypertrophic cardiomyopathy (HCM) is a primary disease of the myocardium (the muscle of the heart) in which a portion of the myocardium is hypertrophied (thickened) without any obvious cause, creating functional impairment of the cardiac muscle. It is a leading cause of sudden cardiac death in young athletes.The occurrence of hypertrophic cardiomyopathy is a significant cause of sudden unexpected cardiac death in any age group and as a cause of disabling cardiac symptoms. Younger people are likely to have a more severe form of hypertrophic cardiomyopathy.HCM is frequently asymptomatic until sudden cardiac death, and for this reason some suggest routinely screening certain populations for this disease.A cardiomyopathy is a disease that affects the muscle of the heart. With HCM, the myocytes (cardiac contractile cells) in the heart increase in size, which results in the thickening of the heart muscle. In addition, the normal alignment of muscle cells is disrupted, a phenomenon known as myocardial disarray. HCM also causes disruptions of the electrical functions of the heart. HCM is most commonly due to a mutation in one of nine sarcomeric genes that results in a mutated protein in the sarcomere, the primary component of the myocyte (the muscle cell of the heart). These are predominantly single-point missense mutations in the genes for beta-myosin heavy chain (MHC), myosin-binding protein C, cardiac troponinT, or tropomyosin. These mutations cause myofibril and myocyte structural abnormalities and possible deficiencies in force generation. Not to be confused with dilated cardiomyopathy or any other cardiomyopathy.While most literature so far focuses on European, American, and Japanese populations, HCM appears in all ethnic groups. The prevalence of HCM is about 0.2% to 0.5% of the general population.