Experimental study on the function of cardiomyocytes
... endothelial NO synthase through a series of reactions. NO can then activate Gc, increase the level of cGMP and relax the smooth muscle. Moreover, it has been found that nitric oxide participates in every phase of ischemic preconditioning as a signal transfer molecule under ischemic/reperfusion condi ...
... endothelial NO synthase through a series of reactions. NO can then activate Gc, increase the level of cGMP and relax the smooth muscle. Moreover, it has been found that nitric oxide participates in every phase of ischemic preconditioning as a signal transfer molecule under ischemic/reperfusion condi ...
ABSTRACT Athletic performance tests the limits of the human body
... in familial forms. Moreover, familial ARVC was only present rarely (in 2/47 athletes). Some have argued that there might be a lower mutation rate in sporadic ARVC cases than in familial cohorts, and that this could explain the low-mutation rate in our cohort. However, most studies have recruited spo ...
... in familial forms. Moreover, familial ARVC was only present rarely (in 2/47 athletes). Some have argued that there might be a lower mutation rate in sporadic ARVC cases than in familial cohorts, and that this could explain the low-mutation rate in our cohort. However, most studies have recruited spo ...
introduction - University of Twente
... coronary artery and the left circumflex coronary artery. The left anterior descending coronary artery is embedded in the surface of the front side of the heart. The left circumflex coronary artery circles around the left side of the heart and is embedded in the surface of the back of the heart. Just ...
... coronary artery and the left circumflex coronary artery. The left anterior descending coronary artery is embedded in the surface of the front side of the heart. The left circumflex coronary artery circles around the left side of the heart and is embedded in the surface of the back of the heart. Just ...
Detection of the third and fourth heart sounds using Hilbert
... of using diastolic heart sounds with the standard ECG as a measurement of ventricular dysfunction may improve the noninvasive diagnosis of myocardial ischemia. Several studies have verified the characteristics of S3 and have applied time-frequency methods to detect S3 [10,11]. However, there have be ...
... of using diastolic heart sounds with the standard ECG as a measurement of ventricular dysfunction may improve the noninvasive diagnosis of myocardial ischemia. Several studies have verified the characteristics of S3 and have applied time-frequency methods to detect S3 [10,11]. However, there have be ...
Implantable Defibrillators for Secondary Prevention of Sudden
... had cardiac surgery between 1999 and 2005 and an ICD implanted within 3 months of surgery. One hundred sixty-four patients were identified; 93/164 had an ICD for sustained pre- or postoperative ventricular tachycardia or fibrillation requiring resuscitation. Records were reviewed for the following: pr ...
... had cardiac surgery between 1999 and 2005 and an ICD implanted within 3 months of surgery. One hundred sixty-four patients were identified; 93/164 had an ICD for sustained pre- or postoperative ventricular tachycardia or fibrillation requiring resuscitation. Records were reviewed for the following: pr ...
High-tension electrical injury to the heart as assessed by
... (MIBG) imaging in addition to conventional electrocardiographic and echocardiographic assessments. Electrocardiography showed transient atrial fibrillation, second degree atrioventricular block, ST-segment depression, and sinus bradycardia in each patient. Echocardiography showed mild hypokinesis of ...
... (MIBG) imaging in addition to conventional electrocardiographic and echocardiographic assessments. Electrocardiography showed transient atrial fibrillation, second degree atrioventricular block, ST-segment depression, and sinus bradycardia in each patient. Echocardiography showed mild hypokinesis of ...
the Right Atrium, Right Ventricle, and Left
... tained at the end of this period. In 12 cases the right atrium could not be stimulated at rates above 120 to 140 per minute because of nonconduction at the A-V junction. The patients were divided into three groups: group 1, eight normal subjects; group 2, seven patients with compensated heart diseas ...
... tained at the end of this period. In 12 cases the right atrium could not be stimulated at rates above 120 to 140 per minute because of nonconduction at the A-V junction. The patients were divided into three groups: group 1, eight normal subjects; group 2, seven patients with compensated heart diseas ...
Heart Failure
... term activation of these compensatory responses, resulting in initiation and progression o fHF. ...
... term activation of these compensatory responses, resulting in initiation and progression o fHF. ...
Original Contributions
... systolic wall thickening, and LAD coronary artery blood flow were continuously recorded on an eightchannel recorder (Gould, Cleveland, Ohio). The above indexes were measured three times at 10minute intervals while the pig was in a quiescent state. Once it was determined that significant differences ...
... systolic wall thickening, and LAD coronary artery blood flow were continuously recorded on an eightchannel recorder (Gould, Cleveland, Ohio). The above indexes were measured three times at 10minute intervals while the pig was in a quiescent state. Once it was determined that significant differences ...
Examination of the Heart2
... When the patient lies on his right side, it moves slightly toward the right (1~ 2.5cm), and when he lies on his left side it moves about 2~3 cm toward the left. ...
... When the patient lies on his right side, it moves slightly toward the right (1~ 2.5cm), and when he lies on his left side it moves about 2~3 cm toward the left. ...
Anginal Pectoris Refractory to Standard Medical Therapy
... Appears to reduce severity of Angina Not shown to improve survival or reduce myocardial infarctions Indicated for CAD not amenable to revascularization ...
... Appears to reduce severity of Angina Not shown to improve survival or reduce myocardial infarctions Indicated for CAD not amenable to revascularization ...
Heart Rate Variability in Time Domain after Acute Myocardial Infarction
... variety of cardio-vascular rcflcscs controlling heart and circulation. This includes baroreceptors measuring blood pressure as well as chemoreceptors responding to hypoxia and acidosis. The efferent autonomic nervous pathways of these reflexes are located at the sinus node, the atrioventricular (AV) ...
... variety of cardio-vascular rcflcscs controlling heart and circulation. This includes baroreceptors measuring blood pressure as well as chemoreceptors responding to hypoxia and acidosis. The efferent autonomic nervous pathways of these reflexes are located at the sinus node, the atrioventricular (AV) ...
MODULATION OF OUTPUT FROM AN ISOLATED GASTROPOD
... moll" 1 ) prior to recording the electromyogram. This gave a more stable electrical recording. Hearts perfused for the first time with acetylcholine (N = 4) showed basically the same result but the suction, which held the electrode in place on the myocardium, invariably broke down during the recordi ...
... moll" 1 ) prior to recording the electromyogram. This gave a more stable electrical recording. Hearts perfused for the first time with acetylcholine (N = 4) showed basically the same result but the suction, which held the electrode in place on the myocardium, invariably broke down during the recordi ...
Arrhythmogenesis by single ectopic beats originating in the Purkinje
... resistance, which allows small charge displacements to cause large changes in Vm (37). Finally, since Purkinje cells are only coupled in one dimension, there is reduced electrotonic suppression of myocardial EAD propagation. Persistent bundle branch reentry (BBR) as a mechanism of sustained tachycar ...
... resistance, which allows small charge displacements to cause large changes in Vm (37). Finally, since Purkinje cells are only coupled in one dimension, there is reduced electrotonic suppression of myocardial EAD propagation. Persistent bundle branch reentry (BBR) as a mechanism of sustained tachycar ...
Heart sounds and heart murmurs sepataion
... length of each heart sound, the systolic and diastolic phases and the cardiac cycle. Time-frequency analysis and classification of the PCG signals have been studied by several authors.[7] Before any analysis, the PCG signal needs to be segmented into components (sounds or murmurs), and then the comp ...
... length of each heart sound, the systolic and diastolic phases and the cardiac cycle. Time-frequency analysis and classification of the PCG signals have been studied by several authors.[7] Before any analysis, the PCG signal needs to be segmented into components (sounds or murmurs), and then the comp ...
Hereditary Occurrence of the Pre-Excitation
... long limb leads of the same patient. This tracing is especially interesting for 3 reasons: fusion beats of unusual type in pre-exeitation, concealed conduction in forward direction, and concealed retrograde conduction over an anomalous accessory A-V bypass following a ventricular capture. Again the ...
... long limb leads of the same patient. This tracing is especially interesting for 3 reasons: fusion beats of unusual type in pre-exeitation, concealed conduction in forward direction, and concealed retrograde conduction over an anomalous accessory A-V bypass following a ventricular capture. Again the ...
The effect of thrombolytic therapy on QT dispersion in acute
... with the above‑mentioned 3 types of arrhythmias. ...
... with the above‑mentioned 3 types of arrhythmias. ...
Chapter 3 The electrocardiogram
... result of left ventricular strain, but more commonly occurs with conduction abnormalities, particularly LBBB or block of the left anterior fascicle. To calculate the direction of the QRS axis, use a 12-lead ECG as an example and refer to the vectorial diagram in Fig. 3.1. By using only the three sta ...
... result of left ventricular strain, but more commonly occurs with conduction abnormalities, particularly LBBB or block of the left anterior fascicle. To calculate the direction of the QRS axis, use a 12-lead ECG as an example and refer to the vectorial diagram in Fig. 3.1. By using only the three sta ...
The Heart and Circulatory System
... The heart can pump blood because it is made of muscle. Muscle tissue works by ...
... The heart can pump blood because it is made of muscle. Muscle tissue works by ...
Caring For Patients With Cardiomyopathy
... atrial; fibrillation (Af) : ominous sign (due to dilated atria) atrial and ventricular arrhythmias (high grade ectopy portent to sudden death) ...
... atrial; fibrillation (Af) : ominous sign (due to dilated atria) atrial and ventricular arrhythmias (high grade ectopy portent to sudden death) ...
CVS Lecture No. 1
... Blood in the heart chambers does not nourish the myocardium The heart has its own nourishing circulatory system Coronary arteries Cardiac veins Blood empties into the right atrium via the coronary sinus Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings ...
... Blood in the heart chambers does not nourish the myocardium The heart has its own nourishing circulatory system Coronary arteries Cardiac veins Blood empties into the right atrium via the coronary sinus Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings ...
Children with Heart Conditions
... stethoscope while examining the heart. These murmurs result from turbulence in the flow of blood as the heart beats. Many heart abnormalities lead to greatly increased turbulence and hence produce quite loud murmurs. However, murmurs are not always due to heart defects and may have no significance. ...
... stethoscope while examining the heart. These murmurs result from turbulence in the flow of blood as the heart beats. Many heart abnormalities lead to greatly increased turbulence and hence produce quite loud murmurs. However, murmurs are not always due to heart defects and may have no significance. ...
Effect of Training Mode on Post-Exercise Heart Rate Recovery of
... concentration) and anaerobic contribution than parasympathetic reactivation after aerobic exercise. Furthermore, HRV and HRRec measure different aspects of post-exercise autonomic shift (Heffernan et al., 2007): HRRec being more indicative of vagal tone and HRV being more indicative of parasympathet ...
... concentration) and anaerobic contribution than parasympathetic reactivation after aerobic exercise. Furthermore, HRV and HRRec measure different aspects of post-exercise autonomic shift (Heffernan et al., 2007): HRRec being more indicative of vagal tone and HRV being more indicative of parasympathet ...
SUDDEN DEATH IN PSYCHIATRIC DISORDERS
... congenital long QT syndrome is likely to cause lifethreatening cardiac events in AN patients (23). AN is often associated with another psychiatric disorder such: depression, social phobia, and obsessivecompulsive disorder. The medical treatment for these disorders associated with AN, should be caref ...
... congenital long QT syndrome is likely to cause lifethreatening cardiac events in AN patients (23). AN is often associated with another psychiatric disorder such: depression, social phobia, and obsessivecompulsive disorder. The medical treatment for these disorders associated with AN, should be caref ...
A Cardiologist`s Guide to Total Wellness Dr. Stephen Sinatra`s
... rubber-stamp follow-up to a 2008 recommendation from the American Academy of Pediatrics to screen youngsters and even start treating them with cholesterol-lowering drugs. At the time, I described that recommendation as “doctors gone mad,” and I feel the same way about the new recommendation. The sta ...
... rubber-stamp follow-up to a 2008 recommendation from the American Academy of Pediatrics to screen youngsters and even start treating them with cholesterol-lowering drugs. At the time, I described that recommendation as “doctors gone mad,” and I feel the same way about the new recommendation. The sta ...