Results 321 to 330 of about 321,031 (357)
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Minerva Medica, 2022
Suspected transient loss of consciousness and syncope are common causes of hospitalization in older patients. Arrhythmias are the most common cardiac causes of syncope. Although a number of instrumental diagnostic procedures are usually routinely performed in patients with suspected syncope, a 12-lead electrocardiogram (ECG) is the only instrumental ...
Bo, Mario, Del Rosso, Attilio
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Suspected transient loss of consciousness and syncope are common causes of hospitalization in older patients. Arrhythmias are the most common cardiac causes of syncope. Although a number of instrumental diagnostic procedures are usually routinely performed in patients with suspected syncope, a 12-lead electrocardiogram (ECG) is the only instrumental ...
Bo, Mario, Del Rosso, Attilio
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Atropine on the electrocardiogram
Clinical Pharmacology & Therapeutics, 1969Six normal volunteers were given graded doses of atropine. Analysis by a computer indicated that R‐T duration, P‐R segment, and R‐R intervals of the electrocardiograms were correlated, whereas the duration of the P wave was not dose related or linked to heart rate.
J. I. Thornby +2 more
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Infecting the Electrocardiogram
JAMA Internal Medicine, 2012Mary Fredrickson, MD; Yader Sandoval, MD; Woubeshet Ayenew, MD; Department of Medicine (Drs Fredrickson and Sandoval) and Division of Cardiology (Dr Ayenew), Hennepin County Medical Center, Minneapolis, Minnesota A 60-YEAR-OLD MAN WITH NO KNOWN MEDIcal history was admitted to our emergency department following an episode of syncope.
Mary Fredrickson +2 more
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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 ...
Radha Sarma +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.
Fadi Matta +8 more
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Pediatric Cardiology, 2018
A 56-year-old female was hospitalized and her admission ECG differed from previous tracings. Knowledge of variant cardiac anatomy along with awareness of common pitfalls in ECG recording reveals the clinical diagnosis and explains the difference.
Richard G. Trohman +2 more
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A 56-year-old female was hospitalized and her admission ECG differed from previous tracings. Knowledge of variant cardiac anatomy along with awareness of common pitfalls in ECG recording reveals the clinical diagnosis and explains the difference.
Richard G. Trohman +2 more
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The electrocardiogram in hyperparathyroidism∗
The American Journal of Cardiology, 1959Abstract The electrocardiographic changes in a case of hyperparathyroidism, before and after parathy-roidectomy, are illustrated and briefly discussed. The shortened Q-aT interval is confirmed as a readily measured index of shortened systole, characteristic of hypercalcemia.
George H. Beck, Henry J.L. Marriott
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Food and Cosmetics Toxicology, 1971
Abstract Six-lead (3 standard, 3 augmented) electrocardiograms (ECGs) made on 500 conscious, untrained beagle dogs ranging in age from 4 months to 2 yr, were analysed. Measurements made on lead II produced the following range of values: Heart rate, 83–179 beats/min; P-R interval, 0.07–0.12 sec; QRS interval, 0.02–0.06 sec; Q-T interval, 0.15–0.21 sec;
G.D.H. Leach, B.E. Osborne
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Abstract Six-lead (3 standard, 3 augmented) electrocardiograms (ECGs) made on 500 conscious, untrained beagle dogs ranging in age from 4 months to 2 yr, were analysed. Measurements made on lead II produced the following range of values: Heart rate, 83–179 beats/min; P-R interval, 0.07–0.12 sec; QRS interval, 0.02–0.06 sec; Q-T interval, 0.15–0.21 sec;
G.D.H. Leach, B.E. Osborne
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JAMA: The Journal of the American Medical Association, 1973
To the Editor.— Did a recent case report inThe Journalreally support the author's appeal for "routine electrocardiography in all candidates for competitive athletics regardless of age?" (221:1047, 1972). A 20-year-old patient had well-documented, known congenital heart disease that she chose to conceal so she could do what she wanted.
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To the Editor.— Did a recent case report inThe Journalreally support the author's appeal for "routine electrocardiography in all candidates for competitive athletics regardless of age?" (221:1047, 1972). A 20-year-old patient had well-documented, known congenital heart disease that she chose to conceal so she could do what she wanted.
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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 ...
Theodore C. Chan +2 more
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