| Autor: |
V, Berder, N, Danchin, Y, Julliere, P, Buffet, J, Anconina, M, Cuilliere, F, Cherrier |
| Jazyk: |
francouzština |
| Rok vydání: |
1994 |
| Předmět: |
|
| Zdroj: |
Annales de cardiologie et d'angeiologie. 43(6) |
| ISSN: |
0003-3928 |
| Popis: |
In order to evaluate the consequences concerning left ventricular function of the spontaneous occlusion of coronary stenoses, the authors studied the clinical and angiographic characteristics of 30 consecutive patients (25 men, 5 women, mean age: 54) undergoing successive coronary arteriograms showing progression to complete occlusion of the anterior interventricular or right coronary between the two investigations. Two groups of patients were identified: Group I (n = 19) with occlusion of a previously moderate (or = 50%) stenosis; Group II (n = 11) with occlusion of an initially tight stenosis (50%). At the time of the first angiogram, left ventricular ejection fraction (LVEF) was 60 +/- 13% in Group I and 58 +/- 9% in Group II (NS). Times between the two investigations were similar in the two groups (58 +/- 43 months and 54 +/- 57 months, NS). Between the two coronary arteriograms, 7 patients of Group I sustained an infarction as against 3 in Group II (NS). Impairment of LVEF developed in 16 patients of Group I (84%) as against 5 of Group II (45%) (p0.005). Global LVEF varied on average by -10.4 +/- 13.3% (p0.005) in Group I and -0.1 +/- 9.5% (NS) in Group II. This difference in variation in LVEF between the two groups was significant (p0.04). Spontaneous occlusion of moderate coronary stenoses results in certain cases in greater impairment of left ventricular function than the occlusion of tight stenoses. The development of a collateral circulation probably plays a protective role in the second group. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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