Results 121 to 130 of about 206,002 (166)
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The prehospital electrocardiogram
The Journal of Emergency Medicine, 2001Although widely used in Europe, the prehospital 12-lead electrocardiogram (EKG) has seen only limited use in this country. Reported benefits of the 12-lead EKG include shortening the door-to-needle time, accelerating the initiation of reperfusion therapy, and overall improving the prehospital and hospital management and outcome of patients with acute ...
R J, Patel, G M, Vilke, T C, Chan
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Calcium and the electrocardiogram
The American Journal of Cardiology, 1961Abstract The electrocardiograms of twenty-two patients with hypoparathyroidism were examined during hypocalcemia and compared to those obtained when normocalcemia was restored. Prolongation of the Q-oTc segment causing, thereby, prolongation of the Q-Tc interval was observed in almost all cases and the degree of prolongation was inversely ...
David Bronsky +3 more
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The electrocardiogram in pericarditis
The American Journal of Cardiology, 1961HE ELECTROCARDIOGRAM is abnormal in many, perhaps in most, cases of clinically significant pericardial disease . Frequently the electrocardiographic abnormalities are characteristic of or strongly suggestive of pericarditis, but only rarely, if ever, are they in themselves diagnostic .
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The electrocardiogram in obesity
Journal of Electrocardiology, 1982The electrocardiographic abnormalities ascribed to morbid obesity were analyzed in a group of 144 patients without apparent clinical cardiovascular pathology and compared with a control group of 100 normal weight patients. Fifty-eight patients in the obese group were re-analyzed after significant weight loss and the electrocardiographic findings ...
I, Eisenstein +4 more
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Electrocardiogram in Pneumonia
The American Journal of Cardiology, 2012Findings on electrocardiogram may hint that pulmonary embolism (PE) is present when interpreted in the proper context and lead to definitive imaging tests. However, it would be useful to know if electrocardiographic (ECG) abnormalities also occur in patients with pneumonia and whether these are similar to ECG changes with PE.
Paul D, Stein +6 more
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Clatter on the electrocardiogram
Journal of Electrocardiology, 2013An ECG recorded from a patient with an implanted cardiac pacemaker showed a striking high frequency pulsing on the ST-T segments linked with each QRS complex. In this report we present an approach to the clatter on the ECG and discuss various potential diagnoses that can have closely similar pattern.
Nayyar, S. +3 more
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The American Journal of Emergency Medicine, 1990
With advancing age, widespread histologic changes in the conduction system occur. These changes may alter several features of the aging electrocardiogram, including duration of the PR and QT intervals, orientation of the electrical axis, duration and morphology of the atrial and ventricular complexes, and characteristics of the ventricular ...
J, Jones, Z M, Srodulski, S, Romisher
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With advancing age, widespread histologic changes in the conduction system occur. These changes may alter several features of the aging electrocardiogram, including duration of the PR and QT intervals, orientation of the electrical axis, duration and morphology of the atrial and ventricular complexes, and characteristics of the ventricular ...
J, Jones, Z M, Srodulski, S, Romisher
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The electrocardiogram of burros
Journal of Electrocardiology, 1975Electrocardiograms of two burros are presented. Compared to those seen in humans, amplitudes were lower, especially in lead I, and marked prolongations were observed in P-Q and Q-T intervals. The QRS axes were craniad.
T, Morimoto, S M, Horvath, M K, Yousef
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The Electrocardiogram and the Athlete
Sports Medicine, 1984Physiological adaptations of the heart to prolonged, intense physical training produce electrocardiographic changes considered abnormal in untrained persons. Increased vagal tone, anatomical changes in the heart, and other less understood mechanisms are thought to cause a spectrum of surface ECG changes characteristic of trained athletes.
J A, Ferst, B R, Chaitman
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The athlete's electrocardiogram
The American Journal of Emergency Medicine, 2006The electrocardiogram performed in the competitive athlete may manifest abnormal electrocardiographic findings; these findings may indicate either normal variant syndromes as well as true cardiac pathology. The normal variant syndromes include ST-segment and T-wave abnormalities, rhythm disturbances, and intraventricular conduction delay--it must be ...
Jeffrey, Wu +3 more
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