Journal of the American College of Cardiology.
Publisher:
Elsevier Biomedical,
Frequency: Fifty no. a year, 2007-
Country: United States
Language: English
Author(s):
American College of Cardiology.
Start Year:1983 -
ISSN:
0735-1097 (Print)
1558-3597 (Electronic)
0735-1097 (Linking)
1558-3597 (Electronic)
0735-1097 (Linking)
Impact Factor
24
2022
| NLM ID: | 8301365 |
| (OCoLC): | 08909559 |
| (DNLM): | J11470000(s) |
| Coden: | JACCDI |
| LCCN: | sc 83008189 |
| Classification: | W1 JO908K |
Effects of hormone replacement therapy on reactivity of atherosclerotic coronary arteries in cynomolgus monkeys. We attempted to determine whether continuous and cyclic medroxyprogesterone acetate modulates the effects of estrogen on dilation of atherosclerotic coronary arteries in surgically postmenopausal female monkeys. Background: Estrogen replacement in postmenopausal women preserves normal dilator responses of atherosclerotic coronary arteries. The effects of progestins on coronary artery reactivity have not been determined. Methods: Repeated quantitative coronary angiography was used to study the effects after 1 month of 1) no hormone replacement (control) or oral administration of 2) continuous c...
Nonrandom ventricular rhythm in horses with atrial fibrillation and its significance for patients. RR interval sequences during spontaneous atrial fibrillation in eight horses were analyzed as in previous studies in patients and dogs using histograms and serial auto-correlograms. In patients and dogs with spontaneous atrial fibrillation, ventricular rhythms were always random. In the horses, the histograms were skewed with median RR intervals of approximately 1,000 ms. A striking finding in these animals was the presence of long RR intervals up to 5,000 ms in duration. The shortest RR intervals lasted 400 to 600 ms. In contrast to findings in dogs and patients, the serial autocorrelograms s...