Topic
Sinus tachycardia
About: Sinus tachycardia is a research topic. Over the lifetime, 2078 publications have been published within this topic receiving 36797 citations. The topic is also known as: sinus tachycardia.
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TL;DR: The study of the tapes of ambulatory patients who died while wearing Holter devices allows us to know the terminal electrical events of death in these cases and which are the electrical triggering mechanisms leading to the terminal event.
959 citations
TL;DR: The ratio of transmitral E velocity to Ea can be used to estimate pulmonary capillary wedge pressure (PCWP) with reasonable accuracy in sinus tachycardia, even with complete merging of E and A velocities.
Abstract: Background—Doppler echocardiography is frequently used to predict filling pressures in normal sinus rhythm, but it is unknown whether it can be applied in sinus tachycardia, with merging of E and A velocities. Tissue Doppler imaging (TDI) can record the mitral annular velocity. The early diastolic velocity (Ea) behaves as a relative load-independent index of left ventricular relaxation, which corrects the influence of relaxation on the transmitral E velocity. Methods and Results—We evaluated 100 patients 64±12 years old with simultaneous Doppler and invasive hemodynamics. Mitral inflow was classified into 3 patterns: complete merging of E and A velocities (pattern A), discernible velocities with A dominance (B), or E dominance (C). The Doppler data were analyzed at the mitral valve tips for E, acceleration and deceleration times of E, and isovolumic relaxation time. In patterns B and C, the A velocity, E/A ratio, and atrial filling fraction were derived. Pulmonary venous flow velocities were also measured...
609 citations
TL;DR: The maze III procedure is now the technique of choice for the management of medically refractory atrial fibrillation and is associated with a higher incidence of postoperative sinus rhythm, improved long-term sinus node function, fewer pacemaker requirements, less arrhythmia recurrence, and improvedLong-term atrial transport function.
595 citations
TL;DR: In this paper, a meta-analysis of randomized placebo-controlled trials of β2-agonist treatment in patients with obstructive airway disease was performed, to evaluate the short-term effect on heart rate and potassium concentrations, and the long term effect on adverse cardiovascular events.
526 citations
TL;DR: Initially rapid post-defibrillation heart rates and atrial fibrillation or sinus tachycardia were associated with good survival in contrast to slow rates and idioventricular or junctional rhythms.
Abstract: The subsequent course of 301 subjects with prehospital ventricular fibrillation detected by rescue units was analyzed. Defibrillation was successful in 199. Of these patients, 98 died before admission; of 101 who were hospitalized, 59 died in the hospital, and 42 were discharged alive. Initially rapid post-defibrillation heart rates and atrial fibrillation or sinus tachycardia were associated with good survival in contrast to slow rates and idioventricular or junctional rhythms. Among hospitalized patients ventricular fibrillation or ventricular tachycardia recurred in 57 per cent and in most within 24 hours. Acute myocardial infarction was diagnosed in 35 per cent, and ischemia alone (predominantly of the anterior wall) in 32 per cent. In 17 per cent no acute myocardial changes evolved. Congestive heart failure occurred in 63 per cent, cardiogenic shock in 25 per cent, and pulmonary complications in 42 per cent. Of the 42 who were discharged, 60 per cent returned to pre-arrest status; 28 per cen...
452 citations