Influence of Temperature on Development of Rigor Mortis in Dog
... furnish necessary information concerning the period at each temperature during which such measurements can be made. There is also evidence that from 1°C to 50 °C the temperature itself does not alter the pressure-volume relations before rigor begins. Based on this information it would be justified t ...
... furnish necessary information concerning the period at each temperature during which such measurements can be made. There is also evidence that from 1°C to 50 °C the temperature itself does not alter the pressure-volume relations before rigor begins. Based on this information it would be justified t ...
Taser X26 Discharges in Swine: Ventricular
... results are conflicting. Some studies, using a specially constructed Taser-like device (i.e., not a field issue Taser X26), have shown a large safety margin for the occurrence of VF in swine.7,23,24 Similarly, neither ventricular capture nor dysrhythmias have been observed in healthy human volunteer ...
... results are conflicting. Some studies, using a specially constructed Taser-like device (i.e., not a field issue Taser X26), have shown a large safety margin for the occurrence of VF in swine.7,23,24 Similarly, neither ventricular capture nor dysrhythmias have been observed in healthy human volunteer ...
Biochemical markers of myocardial injury
... enabled immunoinhibition to be used as the ®rst speci®c quantitative assay for CK-MB.66 The antibodies inhibit M-subunit activity, with residual enzyme activity being derived from B-subunits only; CK-BB is undetectable by activity measurement in serum, unless the patient has suffered a severe cerebr ...
... enabled immunoinhibition to be used as the ®rst speci®c quantitative assay for CK-MB.66 The antibodies inhibit M-subunit activity, with residual enzyme activity being derived from B-subunits only; CK-BB is undetectable by activity measurement in serum, unless the patient has suffered a severe cerebr ...
Effects of glycyl-glutamine dipeptide supplementation on myocardial
... ischemic damage by preventing cellular memand received anaesthesia, but were not burned. brane leakage [16]. In addition, it can protect Sixty-four burned rats from the B and GG groups myocardial cells by enabling ATP-depleted cells were inflicted with 30% total body surface area to maintain their s ...
... ischemic damage by preventing cellular memand received anaesthesia, but were not burned. brane leakage [16]. In addition, it can protect Sixty-four burned rats from the B and GG groups myocardial cells by enabling ATP-depleted cells were inflicted with 30% total body surface area to maintain their s ...
Transthoracic echocardiography in the perioperative setting
... systolic excursion (MAPSE). MAPSE is a reflection of left ventricular longitudinal contractility and is simply measured as the systolic excursion of the mitral valve annuli [41,42 ,43]. MAPSE must be measured in the apical four-chamber view. If only the parasternal views are available, the mitral-se ...
... systolic excursion (MAPSE). MAPSE is a reflection of left ventricular longitudinal contractility and is simply measured as the systolic excursion of the mitral valve annuli [41,42 ,43]. MAPSE must be measured in the apical four-chamber view. If only the parasternal views are available, the mitral-se ...
Myocardial hypertrophy and its role in heart failure with preserved
... Previous studies have suggested that patients with LVH and preserved EF may have subtle systolic dysfunction not reflected by the EF (7, 95). In recent years, LV deformation during systole has been quantified in multiple planes using speckle tracking echocardiography or MRI tissue tagging. Planes of ...
... Previous studies have suggested that patients with LVH and preserved EF may have subtle systolic dysfunction not reflected by the EF (7, 95). In recent years, LV deformation during systole has been quantified in multiple planes using speckle tracking echocardiography or MRI tissue tagging. Planes of ...
Contemporary Management of Acute Right Ventricular Failure: A
... Bedside focused cardiac ultrasound in the emergency department or intensive/coronary care unit is a first-line test in the assessment of RV size, function and load.40 It can be used to exclude frequent causes of acute RV failure, especially those needing immediate treatment (such as pericardial tamp ...
... Bedside focused cardiac ultrasound in the emergency department or intensive/coronary care unit is a first-line test in the assessment of RV size, function and load.40 It can be used to exclude frequent causes of acute RV failure, especially those needing immediate treatment (such as pericardial tamp ...
Bidirectional Ventricular Septal Defect Shunt: Quantification
... Results: On exercise he managed stage one of the protocol and achieved 75% of maximum predicted target heart rate. His oxygenation dropped from 93% to 74% on air. However, the pulmonary systolic pressure increased from 63mmHg to 104mmHg. The contraction of the right ventricle increased appropriately ...
... Results: On exercise he managed stage one of the protocol and achieved 75% of maximum predicted target heart rate. His oxygenation dropped from 93% to 74% on air. However, the pulmonary systolic pressure increased from 63mmHg to 104mmHg. The contraction of the right ventricle increased appropriately ...
WEDNESDAY, September 2
... The Symposium will offer an opportunity to bring together renowned scientists; clinicians, as well as basic scientists from all areas of cardiovascular research, the field, which has become extremely important, challenging and rewarding over the last decades. We hope to create an exciting, enjoyable ...
... The Symposium will offer an opportunity to bring together renowned scientists; clinicians, as well as basic scientists from all areas of cardiovascular research, the field, which has become extremely important, challenging and rewarding over the last decades. We hope to create an exciting, enjoyable ...
Alcohol Consumption, Left Atrial Diameter, and Atrial Fibrillation
... SAS version 9.4 (SAS Institute, Cary, NC) was used for all statistical analyses. Two-tailed P<0.05 were considered statistically significant. ...
... SAS version 9.4 (SAS Institute, Cary, NC) was used for all statistical analyses. Two-tailed P<0.05 were considered statistically significant. ...
Competing Risk of Cardiac Status and Renal Function During
... readmission for a cardiovascular reason within 180 days after discharge. RESULTS A significant reduction in NT-proBNP was not associated with worsening of renal function (WRF) or severe WRF (sWRF). A reduction of NT-proBNP of more than 30% during hospitalization determined prognosis (all-cause mortal ...
... readmission for a cardiovascular reason within 180 days after discharge. RESULTS A significant reduction in NT-proBNP was not associated with worsening of renal function (WRF) or severe WRF (sWRF). A reduction of NT-proBNP of more than 30% during hospitalization determined prognosis (all-cause mortal ...
2 Age-Related Changes in the Cardiovascular System
... United States over the age of 65 years is increasing. Current estimates indicate that approximately 30 to 35 million people are 65 years of age or older. In the year 2030, it is estimated that there will be approximately 55 to 60 million people in this age category. This aspect of our population has ...
... United States over the age of 65 years is increasing. Current estimates indicate that approximately 30 to 35 million people are 65 years of age or older. In the year 2030, it is estimated that there will be approximately 55 to 60 million people in this age category. This aspect of our population has ...
PACES/HRS Expert Consensus Statement on the Management of
... Wolff-Parkinson-White (WPW) electrocardiographic (ECG) pattern.1 The terminology WPW was first used to describe a “bundle-branch pattern” with a short PR interval in healthy young people prone to paroxysmal tachycardia and/or atrial fibrillation. Although isolated case reports preceded the 1930 land ...
... Wolff-Parkinson-White (WPW) electrocardiographic (ECG) pattern.1 The terminology WPW was first used to describe a “bundle-branch pattern” with a short PR interval in healthy young people prone to paroxysmal tachycardia and/or atrial fibrillation. Although isolated case reports preceded the 1930 land ...
Congenital_Heart_Dz
... Fatigue or dyspnea on exertion Supraventricular arrhythmias Paradoxical embolism, or recurrent pulmonary infections Death from RV failure or Arrhythmias in 40-50’s if uncorrected ...
... Fatigue or dyspnea on exertion Supraventricular arrhythmias Paradoxical embolism, or recurrent pulmonary infections Death from RV failure or Arrhythmias in 40-50’s if uncorrected ...
Echocardiographic parameters in healthy young adult Sphynx cats
... weight and echocardiographic values was observed. Lister and Buchanan measured the echocardiographic values in 2-D, whereas the other authors obtained the measurements in M-mode. In the future, measurements in 2-D mode only should be used. Our study had several limitations. The population of Sphynx ...
... weight and echocardiographic values was observed. Lister and Buchanan measured the echocardiographic values in 2-D, whereas the other authors obtained the measurements in M-mode. In the future, measurements in 2-D mode only should be used. Our study had several limitations. The population of Sphynx ...
Pathophysiology and current therapy of congestive heart failure
... due primarily to ventricular systolic dysfunction, diastolic dysfunction or a combination of the two. In most cases systolic dysfunction, as manifested by a decreased ejection fraction, will be the most common cause of congestive heart failure. In a minority of cases, diastolic dysfunction will be t ...
... due primarily to ventricular systolic dysfunction, diastolic dysfunction or a combination of the two. In most cases systolic dysfunction, as manifested by a decreased ejection fraction, will be the most common cause of congestive heart failure. In a minority of cases, diastolic dysfunction will be t ...
The Use of Central Venous Pressure in Critically Ill Patients
... constant cardiac function (i.e., constant heart rate, contractility, and afterload), a 1 mmHg change in right atrial pressure will result in a change of about 500 ml/min. Therefore small differences in the measurement of CVP due to differences in leveling, where the measurements are made with respec ...
... constant cardiac function (i.e., constant heart rate, contractility, and afterload), a 1 mmHg change in right atrial pressure will result in a change of about 500 ml/min. Therefore small differences in the measurement of CVP due to differences in leveling, where the measurements are made with respec ...
Heterogeneous responses of systolic and diastolic left ventricular
... Doppler imaging at rest and during exercise in heart failure with preserved ejection fraction (HFpEF) patients with borderline evidence of diastolic dysfunction at rest. Methods and results Results obtained from 52 HFpEF patients (left ventricular ejection fraction ≥ 50%) identified on the basis of h ...
... Doppler imaging at rest and during exercise in heart failure with preserved ejection fraction (HFpEF) patients with borderline evidence of diastolic dysfunction at rest. Methods and results Results obtained from 52 HFpEF patients (left ventricular ejection fraction ≥ 50%) identified on the basis of h ...
Volume State Control - A New Approach
... A rise in RA will capture blood in the low compliance arterial system, elevating the mean arterial pressure. The right atrial pressure and cardiac output will fall. A rise in RV by contrast will capture blood in the highly compliant venous system, the right atrial pressure and cardiac output will fa ...
... A rise in RA will capture blood in the low compliance arterial system, elevating the mean arterial pressure. The right atrial pressure and cardiac output will fall. A rise in RV by contrast will capture blood in the highly compliant venous system, the right atrial pressure and cardiac output will fa ...
The little brain on the heart
... chronotropism, dromotropism, and regional inotropism ultimately depends on the integration of multiple cardiovascular sensory and central neuronal inputs within the intrathoracic neuroaxis. Intrathoracic local circuit neurons play a key role in such integration. Local circuit neurons Interposed betw ...
... chronotropism, dromotropism, and regional inotropism ultimately depends on the integration of multiple cardiovascular sensory and central neuronal inputs within the intrathoracic neuroaxis. Intrathoracic local circuit neurons play a key role in such integration. Local circuit neurons Interposed betw ...
Reduced Myocardial Flow in Heart Failure Patients With Preserved
... York Heart Association (NYHA) symptom classification ≥1. The third level of screening involved the adjudication of a diagnosis of HFpEF by detailed review of medical records. Of note, no stringent criteria were used to identify and exclude those patients in the study with significant left-sided valv ...
... York Heart Association (NYHA) symptom classification ≥1. The third level of screening involved the adjudication of a diagnosis of HFpEF by detailed review of medical records. Of note, no stringent criteria were used to identify and exclude those patients in the study with significant left-sided valv ...
Ann Thorac Surg
... ventricle are believed to cause progressive ventricular fibrosis by inducing histopathologic changes, which must result in both systolic and diastolic dysfunction. The ventricular EF and cardiac indexes were significantly higher at 5 and 10 years after the Fontan procedure had been completed in youn ...
... ventricle are believed to cause progressive ventricular fibrosis by inducing histopathologic changes, which must result in both systolic and diastolic dysfunction. The ventricular EF and cardiac indexes were significantly higher at 5 and 10 years after the Fontan procedure had been completed in youn ...
Ventricular Septal Defect With Secondary Left Ventricular–to–Right
... aortic valve prolapse, or right ventricular outflow obstruction.3 Medical follow-ups are suggested for those with a small left-to-right shunt, particularly in the case of defects involving the membranous portion of the interventricular septum (perimembranous VSD). This type of VSD accounts for the m ...
... aortic valve prolapse, or right ventricular outflow obstruction.3 Medical follow-ups are suggested for those with a small left-to-right shunt, particularly in the case of defects involving the membranous portion of the interventricular septum (perimembranous VSD). This type of VSD accounts for the m ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.