Surgical Repair of Posterior Mitral Valve Prolapse
... sliding repair) and annular procedure (prosthetic annuloplasty), can be performed without advanced techniques. Data from the Society of Thoracic Surgeons (STS) Database suggest that that only a small proportion of patients with degenerative mitral valve disease are treated at high-volume centers by ...
... sliding repair) and annular procedure (prosthetic annuloplasty), can be performed without advanced techniques. Data from the Society of Thoracic Surgeons (STS) Database suggest that that only a small proportion of patients with degenerative mitral valve disease are treated at high-volume centers by ...
CLINICAL PROGRESS Velocity of Blood Flow in Health and Disease
... the consequent venous distention with the increased cross-section area of the flowing stream tends to slow the velocity of blood flow. In the heart, a number of factors influence the circulation time. Congenital cardiac anomalies with a significant right-to-left shunt usually produce a short circula ...
... the consequent venous distention with the increased cross-section area of the flowing stream tends to slow the velocity of blood flow. In the heart, a number of factors influence the circulation time. Congenital cardiac anomalies with a significant right-to-left shunt usually produce a short circula ...
Teaching Rounds in Cardiac Electrophysiology
... delivered at the PSMA eliminated AP conduction, although the ventricular activation time was not significantly earlier than the PSTA region. APs at this region have distinct ECG characteristics and are correlated with anatomic Section 3 (Figure 2), where a wide portion of atrial myocardium overrides ...
... delivered at the PSMA eliminated AP conduction, although the ventricular activation time was not significantly earlier than the PSTA region. APs at this region have distinct ECG characteristics and are correlated with anatomic Section 3 (Figure 2), where a wide portion of atrial myocardium overrides ...
030327 Cardiovascular Effects of Continuous
... heart failure, found rates of prevalence of obstructive sleep apnea of 37 percent and 11 percent, respectively.5,6 In addition, obstructive sleep apnea is associated with significantly increased odds of having heart failure.7 Normally, sleep is accompanied by reductions in central sympathetic outflo ...
... heart failure, found rates of prevalence of obstructive sleep apnea of 37 percent and 11 percent, respectively.5,6 In addition, obstructive sleep apnea is associated with significantly increased odds of having heart failure.7 Normally, sleep is accompanied by reductions in central sympathetic outflo ...
Variaties in de ziekenhuispraktijk bij acuut myocardinfarct in
... 2,5% viermaal tijdens de episode. De incidentie van index-opnames was 114 per 100 000 persoonsjaren. De regionale spreiding is consistent met de hogere sterfte aan coronaire hartziekten in het bekken van Samber en Maas en in Limburg. 2 op 3 (66,44) waren mannen van gemiddeld 64,7 jaar oud en 1 op 3 ...
... 2,5% viermaal tijdens de episode. De incidentie van index-opnames was 114 per 100 000 persoonsjaren. De regionale spreiding is consistent met de hogere sterfte aan coronaire hartziekten in het bekken van Samber en Maas en in Limburg. 2 op 3 (66,44) waren mannen van gemiddeld 64,7 jaar oud en 1 op 3 ...
Congenital heart diseases Simple complement 1. The most
... E. Tetralogy of Fallot 2. CHD with left-right shunt are the follows, except: A. Ventricular septal defect (VSD) B. Atrial septal defect (ASD) C. Tetralogy of Fallot D. Atrioventricular septal defect E. Patent ductus arteriosus 3. CHD with decreased pulmonary flow is: A. ASD B. Tetralogy of Fallot C. ...
... E. Tetralogy of Fallot 2. CHD with left-right shunt are the follows, except: A. Ventricular septal defect (VSD) B. Atrial septal defect (ASD) C. Tetralogy of Fallot D. Atrioventricular septal defect E. Patent ductus arteriosus 3. CHD with decreased pulmonary flow is: A. ASD B. Tetralogy of Fallot C. ...
Venous Thromboembolism Increases the Risk of Atrial Fibrillation
... fibrillation. BMI, total cholesterol, and blood pressure were highest among those with VTE and atrial fibrillation, followed by those with atrial fibrillation only, those with VTE only, and the lowest mean values were registered among those with no events. Self-reported cardiovascular disease and diabe ...
... fibrillation. BMI, total cholesterol, and blood pressure were highest among those with VTE and atrial fibrillation, followed by those with atrial fibrillation only, those with VTE only, and the lowest mean values were registered among those with no events. Self-reported cardiovascular disease and diabe ...
Acute, ambulatory and central blood pressure measurements in diabetes Magnus Olof Wijkman
... Ambulatory systolic blood pressure predicts left ventricular mass in type 2 diabetes, independently of central systolic blood pressure. Submitted. ...
... Ambulatory systolic blood pressure predicts left ventricular mass in type 2 diabetes, independently of central systolic blood pressure. Submitted. ...
Right ventricular reserve in a piglet model of chronic pulmonary hypertension
... Survival in patients with pulmonary hypertension (PH) is closely related to right ventricular (RV) function [1–3]. In haemodynamics-based studies, low cardiac index (CI) and increased right atrial pressure (RAP) at rest are strong predictors of outcome [4]. While the majority of studies have focused ...
... Survival in patients with pulmonary hypertension (PH) is closely related to right ventricular (RV) function [1–3]. In haemodynamics-based studies, low cardiac index (CI) and increased right atrial pressure (RAP) at rest are strong predictors of outcome [4]. While the majority of studies have focused ...
A molecular and genetic outline of cardiac - UvA-DARE
... conserved signalling pathways that guide cardiac differentiation39 in turn activate the expression of cardiac transcription factors, of which Nkx2‐5, Gata4, T‐box transcription factor Tbx5, Hand2 and Mef2c are deemed crucial.40‐43 In agreement with this, mutations in genes en ...
... conserved signalling pathways that guide cardiac differentiation39 in turn activate the expression of cardiac transcription factors, of which Nkx2‐5, Gata4, T‐box transcription factor Tbx5, Hand2 and Mef2c are deemed crucial.40‐43 In agreement with this, mutations in genes en ...
Persistent left superior vena cava and right superior
... address the only remaining possibility; namely, that extrathoracic systemic venous collateralization shunted venous flow from the right to left superior vena cava in the manner just described. Pressurized bolus injection of echo contrast medium or radioisotope under these circumstances might tempora ...
... address the only remaining possibility; namely, that extrathoracic systemic venous collateralization shunted venous flow from the right to left superior vena cava in the manner just described. Pressurized bolus injection of echo contrast medium or radioisotope under these circumstances might tempora ...
EKG Workshop – Beyond the Basics - AAIM
... that mimic the ECG diagnosis of anteroseptal MI, conventionally defined by QS or Qr complexes (i.e., absence of an initial positive deflection) in the precordial lead V2 (an abnormal finding) and possibly V1 (not necessarily abnormal). The key tip-off for this technical error involves orientation of ...
... that mimic the ECG diagnosis of anteroseptal MI, conventionally defined by QS or Qr complexes (i.e., absence of an initial positive deflection) in the precordial lead V2 (an abnormal finding) and possibly V1 (not necessarily abnormal). The key tip-off for this technical error involves orientation of ...
The right ventricle: interaction with the pulmonary circulation
... Also, instantaneous venous return varies widely for a constant cardiac output as ventilatory efforts alter the dynamic pressure gradient for venous return. Normally, blood flow varies with minimal changes in pulmonary arterial pressure. Similarly, RV filling normally occurs with minimal increases in ...
... Also, instantaneous venous return varies widely for a constant cardiac output as ventilatory efforts alter the dynamic pressure gradient for venous return. Normally, blood flow varies with minimal changes in pulmonary arterial pressure. Similarly, RV filling normally occurs with minimal increases in ...
The role of endomyocardial biopsy in the management of
... efficacy of a procedure or treatment; † Class IIa: conditions for which the weight of evidence/ opinion is in favor of usefulness/efficacy; † Class IIb: conditions for which usefulness/efficacy is less well established by evidence/opinion; and † Class III: conditions for which there is evidence and/or ...
... efficacy of a procedure or treatment; † Class IIa: conditions for which the weight of evidence/ opinion is in favor of usefulness/efficacy; † Class IIb: conditions for which usefulness/efficacy is less well established by evidence/opinion; and † Class III: conditions for which there is evidence and/or ...
cardiac rhythm interpretation
... d. Size and Time Intervals of EKG Waves. The size of the deflection waves and particular time intervals are important when you are reading an electrocardiogram. For example, the duration of a normal "P" wave is between 0.06 and 0.1 seconds, the time it takes for depolarization current to pass throu ...
... d. Size and Time Intervals of EKG Waves. The size of the deflection waves and particular time intervals are important when you are reading an electrocardiogram. For example, the duration of a normal "P" wave is between 0.06 and 0.1 seconds, the time it takes for depolarization current to pass throu ...
Pectus excavatum
... pseudonyms describing the same deformity of gations blame their abnormal findings on the dewhich the aetiology remains unknown and open to formity of the chest wall, but we believe that a speculation. Brodkin (1953) and Chin (1957) blame negative pressure behind the sternum is the main the xiphoid o ...
... pseudonyms describing the same deformity of gations blame their abnormal findings on the dewhich the aetiology remains unknown and open to formity of the chest wall, but we believe that a speculation. Brodkin (1953) and Chin (1957) blame negative pressure behind the sternum is the main the xiphoid o ...
Atrial fibrillation and flutter: Management issues
... -Less side effect burden but less effective in maintaining sinus rhythm, requires hospitalization for QT monitoring during initiation, CKD is contraindication, needs ...
... -Less side effect burden but less effective in maintaining sinus rhythm, requires hospitalization for QT monitoring during initiation, CKD is contraindication, needs ...
T1 Mapping for Myocardial Fibrosis by Cardiac Magnetic
... myocardium tissue is therefore qualitative. Semi-quantitative analysis of LGE can be performed using signal thresholding applied to LGE images; however, there are differences in technique for infarct quantitation (8), and this is only relevant when regional scar/enhancement is present; it does not a ...
... myocardium tissue is therefore qualitative. Semi-quantitative analysis of LGE can be performed using signal thresholding applied to LGE images; however, there are differences in technique for infarct quantitation (8), and this is only relevant when regional scar/enhancement is present; it does not a ...
Feline Hypertrophic Cardiomyopathy
... Any cat that dies suddenly or dies from HCM should have a necropsy (i.e., post mortem examination). Most cats with HCM will have a heart that weighs more than 20 grams and most cats with severe HCM will have a heart that weighs more than 30 grams. Myocardial fiber disarray, the hallmark microscopic ...
... Any cat that dies suddenly or dies from HCM should have a necropsy (i.e., post mortem examination). Most cats with HCM will have a heart that weighs more than 20 grams and most cats with severe HCM will have a heart that weighs more than 30 grams. Myocardial fiber disarray, the hallmark microscopic ...
Heart Rate in Relation to Insulin Sensitivity and
... - and - adrenergic receptors. Acute adrenergic stimuli, such as insulin-induced hypoglycemia, markedly blunt insulin secretion, mainly via 2-receptors, but catecholamines in low concentrations potentially stimulate insulin secretion by activating 2-receptors (21). Alternatively, one might also as ...
... - and - adrenergic receptors. Acute adrenergic stimuli, such as insulin-induced hypoglycemia, markedly blunt insulin secretion, mainly via 2-receptors, but catecholamines in low concentrations potentially stimulate insulin secretion by activating 2-receptors (21). Alternatively, one might also as ...
Valvular Heart Disease: A Primer for the Clinical Pharmacist
... Valvular heart disease is a commonly encountered clinical condition that is not taught in most undergraduate and graduate pharmacy programs, leaving the practicing pharmacist without basic knowledge to expand on and subsequently apply to direct patient care. Unlike other areas of cardiology in which ...
... Valvular heart disease is a commonly encountered clinical condition that is not taught in most undergraduate and graduate pharmacy programs, leaving the practicing pharmacist without basic knowledge to expand on and subsequently apply to direct patient care. Unlike other areas of cardiology in which ...
Role of Structural Barriers in the Mechanism of Alternans
... produced by a 10x2 mm epicardial laser-lesion. In controls, APD alternated in phase at all ventricular sites above a critical heart rate, i.e. concordant alternans. Also, above a faster critical heart rate threshold, APD alternated with opposite phase between sites, i.e. discordant alternans. In con ...
... produced by a 10x2 mm epicardial laser-lesion. In controls, APD alternated in phase at all ventricular sites above a critical heart rate, i.e. concordant alternans. Also, above a faster critical heart rate threshold, APD alternated with opposite phase between sites, i.e. discordant alternans. In con ...
Essentials of Anatomy and Physiology, 9e (Marieb)
... 14) Which one of the following represents the correct path for the transmission of an impulse in the intrinsic conduction system of the heart: A) atrioventricular (AV) node, sinoatrial (SA) node, atrioventricular (AV) bundle, right and left bundle branches, Purkinje fibers B) atrioventricular (AV) n ...
... 14) Which one of the following represents the correct path for the transmission of an impulse in the intrinsic conduction system of the heart: A) atrioventricular (AV) node, sinoatrial (SA) node, atrioventricular (AV) bundle, right and left bundle branches, Purkinje fibers B) atrioventricular (AV) n ...
Alprostadil in duct dependent congenital heart conditions in neonates
... Rarely some of these infants may need a much higher dose (upto 200 nanograms/kg/min) which should be used after urgent discussion with the paediatric cardiologist or intensivist. The infusion rate can be reduced to 50 nanograms/Kg/min if there is rapid improvement but this is usually done after card ...
... Rarely some of these infants may need a much higher dose (upto 200 nanograms/kg/min) which should be used after urgent discussion with the paediatric cardiologist or intensivist. The infusion rate can be reduced to 50 nanograms/Kg/min if there is rapid improvement but this is usually done after card ...
Coronary artery disease
Coronary artery disease (CAD), also known as ischemic heart disease (IHD), atherosclerotic heart disease, atherosclerotic cardiovascular disease, and coronary heart disease, is a group of diseases that includes: stable angina, unstable angina, myocardial infarction, and sudden coronary death. It is within the group of cardiovascular diseases of which it is the most common type. A common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Occasionally it may feel like heartburn. Usually symptoms occur with exercise or emotional stress, last less than a few minutes, and gets better with rest. Shortness of breath may also occur and sometimes no symptoms are present. The first sign is occasionally a heart attack. Other complications include heart failure or an irregular heartbeat.Risk factors include: high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol, among others. Other risks include depression. The underlying mechanism involves atherosclerosis of the arteries of the heart. A number of tests may help with diagnoses including: electrocardiogram, cardiac stress testing, coronary computed tomographic angiography, and coronary angiogram, among others.Prevention is by eating a healthy diet, regular exercise, maintaining a healthy weight and not smoking. Sometimes medication for diabetes, high cholesterol, or high blood pressure are also used. There is limited evidence for screening people who are at low risk and do not have symptoms. Treatment involves the same measures as prevention. Additional medications such as antiplatelets including aspirin, beta blockers, or nitroglycerin may be recommended. Procedures such as percutaneous coronary intervention (PCI) or coronary artery bypass surgery (CABG) may be used in severe disease. In those with stable CAD it is unclear if PCI or CABG in addition to the other treatments improve life expectancy or decreases heart attack risk.In 2013 CAD was the most common cause of death globally, resulting in 8.14 million deaths (16.8%) up from 5.74 million deaths (12%) in 1990. The risk of death from CAD for a given age has decreased between 1980 and 2010 especially in the developed world. The number of cases of CAD for a given age has also decreased between 1990 and 2010. In the United States in 2010 about 20% of those over 65 had CAD, while it was present in 7% of those 45 to 64, and 1.3% of those 18 to 45. Rates are higher among men than women of a given age.