Noninvasive electrocardiographic imaging for cardiac
... subject N. The r-wave typically reflects early septal activation followed by RV free-wall activation in the normal heart. In the RBB-block heart, however, where RV activation is delayed, the r-wave reflects the entire septal activation and is wider (40 ms compared with 20 ms in subject N). The rS do ...
... subject N. The r-wave typically reflects early septal activation followed by RV free-wall activation in the normal heart. In the RBB-block heart, however, where RV activation is delayed, the r-wave reflects the entire septal activation and is wider (40 ms compared with 20 ms in subject N). The rS do ...
2013 Exercise Standards for Testing and Training
... Maximum arteriovenous oxygen difference has a physiological limit of 15 to 17 mL O2 per 100 mL blood. As a consequence, if maximum effort is achieved, V̇o2max can be used to estimate maximum cardiac output. At fixed, mild-to-moderate submaximal workloads below anaerobic threshold (the point during p ...
... Maximum arteriovenous oxygen difference has a physiological limit of 15 to 17 mL O2 per 100 mL blood. As a consequence, if maximum effort is achieved, V̇o2max can be used to estimate maximum cardiac output. At fixed, mild-to-moderate submaximal workloads below anaerobic threshold (the point during p ...
Exercise Standards for Testing and Training A Scientific Statement
... Maximum arteriovenous oxygen difference has a physiological limit of 15 to 17 mL O2 per 100 mL blood. As a consequence, if maximum effort is achieved, V̇o2max can be used to estimate maximum cardiac output. At fixed, mild-to-moderate submaximal workloads below anaerobic threshold (the point during p ...
... Maximum arteriovenous oxygen difference has a physiological limit of 15 to 17 mL O2 per 100 mL blood. As a consequence, if maximum effort is achieved, V̇o2max can be used to estimate maximum cardiac output. At fixed, mild-to-moderate submaximal workloads below anaerobic threshold (the point during p ...
the operation and management of a case after left atrium
... showed no atelectasis, but the patient continued to be extremely cyanotic and it was suspected that the inferior vena cava had been diverted into the left atrium. A catheter was again introduced from a saphenous vein up into the inferior vena cava, but it entered the left atrium directly. The oxygen ...
... showed no atelectasis, but the patient continued to be extremely cyanotic and it was suspected that the inferior vena cava had been diverted into the left atrium. A catheter was again introduced from a saphenous vein up into the inferior vena cava, but it entered the left atrium directly. The oxygen ...
Sonometric Study of the Normal Tricuspid Valve Annulus in Sheep
... behind those of other cardiac valves because, when diseased, the valve’s scant symptomatology and difficult diagnosis have minimized its real frequency and importance. Recent advances in echocardiography have revealed a higher than expected incidence of tricuspid insufficiency, and less than perfect ...
... behind those of other cardiac valves because, when diseased, the valve’s scant symptomatology and difficult diagnosis have minimized its real frequency and importance. Recent advances in echocardiography have revealed a higher than expected incidence of tricuspid insufficiency, and less than perfect ...
Effect of pH, phosphate, and ADP on relaxation of myocardium after
... investigated. Given that some evaporative loss and cooling would have occurred, a 5% decline in Pmax was observed. The average relaxation transient at a nominal 20°C (see Fig. 2) was well fitted by double exponential processes with the parameters shown in Table 1. Comparison of the parameters indica ...
... investigated. Given that some evaporative loss and cooling would have occurred, a 5% decline in Pmax was observed. The average relaxation transient at a nominal 20°C (see Fig. 2) was well fitted by double exponential processes with the parameters shown in Table 1. Comparison of the parameters indica ...
letters to the editor - AJP - Regulatory, Integrative and Comparative
... give the opportunity to study the developmental function of single genes or complex genetic pathways. The role of specific genes and transcription factors, like endothelial PAS protein 1, in cardiovascular development has been investigated in the chicken embryo (8). A “chicken alternative” for the e ...
... give the opportunity to study the developmental function of single genes or complex genetic pathways. The role of specific genes and transcription factors, like endothelial PAS protein 1, in cardiovascular development has been investigated in the chicken embryo (8). A “chicken alternative” for the e ...
Electrocardiography (ECG) Handout Introduction
... We have developed a systematic approach of interpreting ECGs that can be used as a learning tool or as a checklist. Learning this type of approach will probably be useful for both for ECG clinical cases and for passing exams (such as the FACEM Fellowship). In both these situations (e.g. real life or ...
... We have developed a systematic approach of interpreting ECGs that can be used as a learning tool or as a checklist. Learning this type of approach will probably be useful for both for ECG clinical cases and for passing exams (such as the FACEM Fellowship). In both these situations (e.g. real life or ...
ACC/AHA/ESC guidelines for the management of patients with atrial
... Preamble It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced and tested in the detection, management, or prevention of disease states. Rigorous and expert analysis of the available data doc ...
... Preamble It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced and tested in the detection, management, or prevention of disease states. Rigorous and expert analysis of the available data doc ...
ACC/AHA/ESC Practice Guidelines
... unchanged recommendations has not been updated. It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced and tested in the detection, management, or prevention of disease states. Rigorous and ex ...
... unchanged recommendations has not been updated. It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced and tested in the detection, management, or prevention of disease states. Rigorous and ex ...
ACC/AHA/ESC 2006 guidelines for the management
... Preamble It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced and tested in the detection, management, or prevention of disease states. Rigorous and expert analysis of the available data doc ...
... Preamble It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced and tested in the detection, management, or prevention of disease states. Rigorous and expert analysis of the available data doc ...
Pacemaker Leads - The American Association for the Surgery of
... RV under X ray, usually bipolar i.e., with 2 electrodes at the end of wire – Transthoracic (epicardial lead) post op pacer wires. – Transcutaneous one electrode over cardiac apex, other over right scapula or clavicle. – Transesophageal ...
... RV under X ray, usually bipolar i.e., with 2 electrodes at the end of wire – Transthoracic (epicardial lead) post op pacer wires. – Transcutaneous one electrode over cardiac apex, other over right scapula or clavicle. – Transesophageal ...
ACC/AHA/ESC Practice Guidelines
... Preamble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e260 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e261 1.1. Organization of Committee and Evidence Review. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e261 1.2. ...
... Preamble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e260 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e261 1.1. Organization of Committee and Evidence Review. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e261 1.2. ...
Acute Coronary Syndrome Due to Complete Spontaneous
... coronary syndrome. Coronary angiography was planned for the patient and performed by the Judkins technique. The left main coronary artery was engaged, and its ostium was located as normal in the left sinus of Valsalva. The left main trunk was normal, but only 1-cm proximal part of the left anterior ...
... coronary syndrome. Coronary angiography was planned for the patient and performed by the Judkins technique. The left main coronary artery was engaged, and its ostium was located as normal in the left sinus of Valsalva. The left main trunk was normal, but only 1-cm proximal part of the left anterior ...
VENTRICULAR ASSIST DEVICE AND METHOD
... may be the wall of either the pulmonary artery or the aorta. The collar 26 (and hence the stator 28 and the winding 30) is disposed immediately outside the arterial wall 50. In the example of Figure 2, the surface 20 is a helical surface 52 in which helical flighting extends outwardly from the centr ...
... may be the wall of either the pulmonary artery or the aorta. The collar 26 (and hence the stator 28 and the winding 30) is disposed immediately outside the arterial wall 50. In the example of Figure 2, the surface 20 is a helical surface 52 in which helical flighting extends outwardly from the centr ...
ACC/AHA/ESC Practice Guidelines
... This article has been copublished in the August 15, 2006, issues of Circulation and the Journal of the American College of Cardiology and the September 2006 issue of Europace. Copies: This document is available on the World Wide Web sites of the American College of Cardiology (www.acc.org), the Amer ...
... This article has been copublished in the August 15, 2006, issues of Circulation and the Journal of the American College of Cardiology and the September 2006 issue of Europace. Copies: This document is available on the World Wide Web sites of the American College of Cardiology (www.acc.org), the Amer ...
ACC/AHA/ESC Practice Guidelines
... Preamble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e260 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e261 1.1. Organization of Committee and Evidence Review. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e261 1.2. ...
... Preamble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e260 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e261 1.1. Organization of Committee and Evidence Review. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e261 1.2. ...
Print - Circulation
... were rejected from this normal, control group. This was done in order to preserve the integrity of the normal, control group which was to serve as a standard of comparison for the entire series. It was deemed preferable thus to include some almost normal hearts in the group with slight coronary arte ...
... were rejected from this normal, control group. This was done in order to preserve the integrity of the normal, control group which was to serve as a standard of comparison for the entire series. It was deemed preferable thus to include some almost normal hearts in the group with slight coronary arte ...
Heart rate as a marker of incidence and prognosis of cardiovascular
... Resting heart rate (RHR) is an easily accessible clinical parameter. In spite of the wellestablished association between resting heart rate and mortality in men and women, potential links between the marker and more specific cardiovascular diseases (CVDs) have not yet been explored. No previous rese ...
... Resting heart rate (RHR) is an easily accessible clinical parameter. In spite of the wellestablished association between resting heart rate and mortality in men and women, potential links between the marker and more specific cardiovascular diseases (CVDs) have not yet been explored. No previous rese ...
Atrial remodeling due to atrial tachycardia and heart failure
... CHF group. However, this prolongation of AERP is not likely responsible for the enhanced inducibility and sustenance of AF during CHF. According to the multiple wavelet theory, AF should be attenuated by a prolongation of AERP since the wavelength (which equals conduction velocity x AERP) prolongs c ...
... CHF group. However, this prolongation of AERP is not likely responsible for the enhanced inducibility and sustenance of AF during CHF. According to the multiple wavelet theory, AF should be attenuated by a prolongation of AERP since the wavelength (which equals conduction velocity x AERP) prolongs c ...
Learning Qualitative Models from Physiological Signals
... during cardiac bypass surgery. Useful model constraints were obtained, representing both general physiological knowledge and knowledge particular to the patient being monitored. ...
... during cardiac bypass surgery. Useful model constraints were obtained, representing both general physiological knowledge and knowledge particular to the patient being monitored. ...
Xanthine Derivatives in the Heart: Blessed or Cursed?
... well as for the protection against myocardial ischemia/reperfusion injury. A2A receptors are positively coupled to adenylyl cyclase. They are expressed in rat ventricular myocardium and are known to counteract some A1 adenosine receptor-mediated anti-adrenergic actions [25]. A2B adenosine receptors ...
... well as for the protection against myocardial ischemia/reperfusion injury. A2A receptors are positively coupled to adenylyl cyclase. They are expressed in rat ventricular myocardium and are known to counteract some A1 adenosine receptor-mediated anti-adrenergic actions [25]. A2B adenosine receptors ...
DOI: 10.1161/CIRCULATIONAHA.108.191098 published online Feb
... elevated, the term ST-segment– elevation myocardial infarction (STEMI) is used to describe the changes and to determine eligibility for acute reperfusion therapy. The STEMI designation is contrasted with that of NSTEMI (or nonSTEMI), which includes all others, that is, those with lesser amounts of S ...
... elevated, the term ST-segment– elevation myocardial infarction (STEMI) is used to describe the changes and to determine eligibility for acute reperfusion therapy. The STEMI designation is contrasted with that of NSTEMI (or nonSTEMI), which includes all others, that is, those with lesser amounts of S ...