Effects of myocardial ischemia on the release of cardiac troponin i in
... cardiac troponin I in human heart tissue. The cytosol fraction was 3% and the myofibril fraction was 97%. Similar percentages of cardiac troponin I were measured in the fractions of cows and dogs. Cardiac troponin I shows a prolonged biphasic release pattern, which is probably the result of the los ...
... cardiac troponin I in human heart tissue. The cytosol fraction was 3% and the myofibril fraction was 97%. Similar percentages of cardiac troponin I were measured in the fractions of cows and dogs. Cardiac troponin I shows a prolonged biphasic release pattern, which is probably the result of the los ...
aortic arch in eisenmenger`s complex
... rare, and when McKim and Wiglesworth reported six examples in 1954 they could find only 11 others in the literature since 1868. Most of them had been discovered at operation or necropsy. As Maier (1954) pointed out, the anomaly is found much more frequently in patients submitted to angiocardiography ...
... rare, and when McKim and Wiglesworth reported six examples in 1954 they could find only 11 others in the literature since 1868. Most of them had been discovered at operation or necropsy. As Maier (1954) pointed out, the anomaly is found much more frequently in patients submitted to angiocardiography ...
Characterization of heart and pulmonat vacular
... Mohammed Elfadhil and Mr. Abubaker Y. Elamin, who help me so much in data analysis setting and finishing of my thesis ...
... Mohammed Elfadhil and Mr. Abubaker Y. Elamin, who help me so much in data analysis setting and finishing of my thesis ...
Unusual RighttoLeft Shunt by SingleSided Bilateral Inferior Vena Cava
... with no anatomic intracardiac shunt.12 Nevertheless, surgical or interventional correction of this cyanotic cardiac disease is indicated for prevention of paradoxic embolism, pronounced effort intolerance, and low peripheral oxygen saturation, with moderate polycythemia and an increase in left ventr ...
... with no anatomic intracardiac shunt.12 Nevertheless, surgical or interventional correction of this cyanotic cardiac disease is indicated for prevention of paradoxic embolism, pronounced effort intolerance, and low peripheral oxygen saturation, with moderate polycythemia and an increase in left ventr ...
Differential responses of the right ventricle to
... ventricle in congenitally corrected transposition or in univentricular circulation such as in hypoplastic left heart syndrome. Moreover, RV dysfunction predicts mortality in chronic heart failure.4 The mechanisms of RV dysfunction and RV failure are as yet unknown. In fact, the mechanisms of RV adap ...
... ventricle in congenitally corrected transposition or in univentricular circulation such as in hypoplastic left heart syndrome. Moreover, RV dysfunction predicts mortality in chronic heart failure.4 The mechanisms of RV dysfunction and RV failure are as yet unknown. In fact, the mechanisms of RV adap ...
What Is the Optimal Serum Potassium Level in Cardiovascular
... By contrast, ACE inhibitors and aldosterone blockers (which increase serum potassium) improve prognosis (43,80 – 83). In class I to III HF, a lower serum potassium concentration (4.1 mmol/l vs. 4.4 mmol/l) is an independent predictor of sudden death (84). Elevation of potassium within the physiologi ...
... By contrast, ACE inhibitors and aldosterone blockers (which increase serum potassium) improve prognosis (43,80 – 83). In class I to III HF, a lower serum potassium concentration (4.1 mmol/l vs. 4.4 mmol/l) is an independent predictor of sudden death (84). Elevation of potassium within the physiologi ...
Effects of obstructive sleep apnoea on heart rhythm REVIEW
... In the following sections, the evidence from observational and interventional studies on the association between OSA and cardiac arrhythmias will be discussed. Atrial fibrillation and atrial arrhythmias The most frequent atrial arrhythmias include atrial fibrillation, supraventricular premature comp ...
... In the following sections, the evidence from observational and interventional studies on the association between OSA and cardiac arrhythmias will be discussed. Atrial fibrillation and atrial arrhythmias The most frequent atrial arrhythmias include atrial fibrillation, supraventricular premature comp ...
Assessment of wasted myocardial work
... circumferential segments incorporating all LV walls were analyzed. Strain was calculated as ...
... circumferential segments incorporating all LV walls were analyzed. Strain was calculated as ...
Early predictors of adverse left ventricular remodelling after
... diography image quality. The study group consisted of 88 patients (29 women and 59 men, mean age 67.1 ± 5.6 years) with first ST elevation myocardial infarction (STEMI), who had been referred to the catheterisation laboratory and were undergoing primary PCI. Perfusion of the infarct region by the IR ...
... diography image quality. The study group consisted of 88 patients (29 women and 59 men, mean age 67.1 ± 5.6 years) with first ST elevation myocardial infarction (STEMI), who had been referred to the catheterisation laboratory and were undergoing primary PCI. Perfusion of the infarct region by the IR ...
HF CARE - Critical Diagnostics
... the general population. The study of 1,831 healthy individuals from Olmsted County, Minnesota, who were followed for approximately a decade, showed that those with the highest ST2 concentrations were at the most risk of heart failure or death over this same period of time. ...
... the general population. The study of 1,831 healthy individuals from Olmsted County, Minnesota, who were followed for approximately a decade, showed that those with the highest ST2 concentrations were at the most risk of heart failure or death over this same period of time. ...
CPR Course
... • In SCA, ventricular tachycardia or ventricular fibrillation causes the heart to beat too fast. ● Ventricular tachycardia (VT), a dangerously fast rhythm in the lower two chambers of the heart. ● Ventricular fibrillation (VF), a rapid and chaotic quivering of the ventricles, which can be triggered ...
... • In SCA, ventricular tachycardia or ventricular fibrillation causes the heart to beat too fast. ● Ventricular tachycardia (VT), a dangerously fast rhythm in the lower two chambers of the heart. ● Ventricular fibrillation (VF), a rapid and chaotic quivering of the ventricles, which can be triggered ...
Pulse Contour Cardiac Output (PiCCO) Learning Package (Liverpool)
... thermodilution arterial line. The arterial line can be placed in the axillary, brachial, femoral or radial artery, although radial insertion requires a longer catheter. PiCCO not only gives information about cardiac output but can give measurements to assess preload, contractility, afterload and ext ...
... thermodilution arterial line. The arterial line can be placed in the axillary, brachial, femoral or radial artery, although radial insertion requires a longer catheter. PiCCO not only gives information about cardiac output but can give measurements to assess preload, contractility, afterload and ext ...
AHA/ACCF/ESC Scientific Statement
... however, left ventricular biopsy has been used in case series to define cardiomyopathic processes limited to the left ventricle.13 EMB usually is performed safely under fluoroscopic guidance. Fluoroscopy is generally better than 2-dimensional echocardiography to guide EMB because it provides more in ...
... however, left ventricular biopsy has been used in case series to define cardiomyopathic processes limited to the left ventricle.13 EMB usually is performed safely under fluoroscopic guidance. Fluoroscopy is generally better than 2-dimensional echocardiography to guide EMB because it provides more in ...
A Nation of Lifesavers - British Heart Foundation
... CPR involves giving a combination of chest compressions and mouth to mouth ‘rescue breaths’ to the person that has had a cardiac arrest. People that have not been trained in CPR, or who are uncomfortable giving rescue breaths to strangers, can just do chest compressions. This is known as ‘hands-only ...
... CPR involves giving a combination of chest compressions and mouth to mouth ‘rescue breaths’ to the person that has had a cardiac arrest. People that have not been trained in CPR, or who are uncomfortable giving rescue breaths to strangers, can just do chest compressions. This is known as ‘hands-only ...
Effects of Drugs on Isolated Mammalian Heart
... recognize the legal background of medical practice Explain the causes and mechanisms of intoxication. Describe the role of family, community, and culture as factors influencing patient presentations, interpretations of illness episodes and adherence to treatment episodes. Demonstrate knowledge and u ...
... recognize the legal background of medical practice Explain the causes and mechanisms of intoxication. Describe the role of family, community, and culture as factors influencing patient presentations, interpretations of illness episodes and adherence to treatment episodes. Demonstrate knowledge and u ...
Myocardial Balance of Inorganic Phosphate and
... roentgenographically demonstrated coronary artery disease (CAD) developed angina during pacing, and showed mean myocardial lactate (L) production, abnormal left ventricular end-diastolic pressure (LVEDP) and ST segment depression. Group NA (n = 11), composed of six patients with CAD and five subject ...
... roentgenographically demonstrated coronary artery disease (CAD) developed angina during pacing, and showed mean myocardial lactate (L) production, abnormal left ventricular end-diastolic pressure (LVEDP) and ST segment depression. Group NA (n = 11), composed of six patients with CAD and five subject ...
Inherited heart conditions Dilated cardiomyopathy In association with
... through the heart and lead to an increased risk of having a stroke. If this is the case, your cardiologist will prescribe anticoagulants for you, to reduce that risk. We explain more about anticoagulants on page 37. Some arrhythmias need to be corrected by delivering a controlled electric shock. Thi ...
... through the heart and lead to an increased risk of having a stroke. If this is the case, your cardiologist will prescribe anticoagulants for you, to reduce that risk. We explain more about anticoagulants on page 37. Some arrhythmias need to be corrected by delivering a controlled electric shock. Thi ...
A Baroreflex Control Model Using Head-Up Tilt Test
... thesis, a model for the baroreflex was built using control theory and simulations were run in order to show its proper functioning when a disturbance affects the signal. The intention was to modulate the autonomic nervous system influence in the baroreflex and how this influence is felt and changes ...
... thesis, a model for the baroreflex was built using control theory and simulations were run in order to show its proper functioning when a disturbance affects the signal. The intention was to modulate the autonomic nervous system influence in the baroreflex and how this influence is felt and changes ...
Executive summary of the guidelines on the diagnosis and treatment
... Documents have been issued in recent years by the European Society of Cardiology (ESC) and by different organizations and other related societies. This profusion can put at stake the authority and validity of guidelines, which can only be guaranteed if they have been developed by an unquestionable d ...
... Documents have been issued in recent years by the European Society of Cardiology (ESC) and by different organizations and other related societies. This profusion can put at stake the authority and validity of guidelines, which can only be guaranteed if they have been developed by an unquestionable d ...
ACCF/ACR/SCCT/SCMR - מכון הדימות The Division of Diagnostic
... cardiovascular diseases. The ACCF believes that a careful blending of a broad range of clinical experience and available evidence-based information can help guide a more efficient and equitable allocation of health care resources in imaging. The ultimate objective of these reviews is to improve pati ...
... cardiovascular diseases. The ACCF believes that a careful blending of a broad range of clinical experience and available evidence-based information can help guide a more efficient and equitable allocation of health care resources in imaging. The ultimate objective of these reviews is to improve pati ...
Title Page - Adolescent Health
... QTc ≥500 ms (marked QT prolongation) Short QT interval* QTc ≤320 ms Brugada-like ECG pattern High take-off and downsloping ST segment elevation followed by a negative T wave in ≥2 leads in V1–V3 Profound sinus bradycardia <30 bpm or sinus pauses ≥3 s Atrial tachyarrhythmias Supraventricular tachycar ...
... QTc ≥500 ms (marked QT prolongation) Short QT interval* QTc ≤320 ms Brugada-like ECG pattern High take-off and downsloping ST segment elevation followed by a negative T wave in ≥2 leads in V1–V3 Profound sinus bradycardia <30 bpm or sinus pauses ≥3 s Atrial tachyarrhythmias Supraventricular tachycar ...
Acute Heart Failure
... failure and related acute decompensation have become the single most costly medical syndrome in cardiology.10,11 Patients with AHF have a very poor prognosis. Mortality is particularly high in patients with acute myocardial infarction (AMI) accompanied by severe heart failure, with a 30% 12 month mo ...
... failure and related acute decompensation have become the single most costly medical syndrome in cardiology.10,11 Patients with AHF have a very poor prognosis. Mortality is particularly high in patients with acute myocardial infarction (AMI) accompanied by severe heart failure, with a 30% 12 month mo ...
Aldosterone Synthase Promoter Polymorphism Predicts Outcome in
... and at the 6-month visit. Left ventricular function was assessed by transthoracic echocardiography at baseline and 6 months in a subset (n ⫽ 273 at baseline, n ⫽ 268 at 6 months) of the GRAHF study subjects. The primary end point for the A-HeFT study was a composite weighted score with 3 components: ...
... and at the 6-month visit. Left ventricular function was assessed by transthoracic echocardiography at baseline and 6 months in a subset (n ⫽ 273 at baseline, n ⫽ 268 at 6 months) of the GRAHF study subjects. The primary end point for the A-HeFT study was a composite weighted score with 3 components: ...
New Insights into Mechanisms of Atrial Fibrillation
... persist (Moe et al. 1964). The shortening of the refractory period of atrial myocytes and the slowing of conduction velocity – salient features of electrical remodeling – both help to stabilize the arrhythmia by decreasing circuit size. This theory has support in the experimental work of Allessie et ...
... persist (Moe et al. 1964). The shortening of the refractory period of atrial myocytes and the slowing of conduction velocity – salient features of electrical remodeling – both help to stabilize the arrhythmia by decreasing circuit size. This theory has support in the experimental work of Allessie et ...
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.