| Autor: |
J, Candell-Riera, J, Castell-Conesa, J M, González, J, Rosselló-Urgell |
| Rok vydání: |
2000 |
| Předmět: |
|
| Zdroj: |
Revista espanola de cardiologia. 53(7) |
| ISSN: |
0300-8932 |
| Popis: |
The aim of this study was to evaluate the efficacy of stress-rest 99mTc-MIBI SPET to predict wall motion improvement after revascularization.A prospective and consecutive series of 82 patients (59 +/- 9 years, 12 women), who had some segment with severe impairment of the contractility and underwent coronary revascularization by surgery (n = 64) or angioplasty (n = 18) were studied with rest 99mTc-MIBI SPET. All patients had a rest 99Tc-MIBI SPET, and an exercise test was also performed on 40 of these patients. Before and within 3-6 months after the revascularization a gated blood pool scintigraphy of three projections was performed. The segmentary contractile recovery after revascularization was assessed in relation to the quantification of the 99mTc-MIBI uptake and to the exercise-rest reversibility (exercise uptakerest uptake).The mean value of the left ejection fraction did not change after the revascularization (41.1 +/- 14.5% vs 41.8 +/- 15.7%). In the post revascularization control a contractile recovery was observed in 40% (113/282) of the segments with severe hypokinesia, akinesia or dyskinesia. Exercise-rest reversibility and rest uptake30% were present in 62% (p = 0.002) and 89% (p0.0001) respectively of segments that improved contractility after revascularization.For the 99mTc-MIBI SPET an exercise-rest reversibility and30% uptake at rest are predictive criteria of contractile recovery after revascularization. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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