Abstract | OBJECTIVE: DESIGN: A 5-year follow-up study. SETTING: University hospital in south-western Finland. SUBJECTS: Altogether, 174 consecutive electively operated bypass patients. MAIN OUTCOME MEASURES: Serial clinical evaluation and bicycle exercise tests (pre-operatively, at 6 months, and at 1 and 5 years). Quantitative coronary angiography pre-operatively and 5 years after the surgery. RESULTS: Subjects with patent grafts had fewer angina pectoris symptoms at the 5-year follow-up (24 vs. 52%, P = 0.001) and were treated less frequently with long-acting nitrates (3 vs. 15%, P = 0.037) than subjects with graft occlusions. Fewer of them were in classes II-III of the functional classification of the Canadian Cardiovascular Society (39 vs. 74%, P = 0.001). The exercise test was interrupted less often because of chest pain (23 vs. 41%, P = 0.03) and improvement in exercise test variables during the follow-up period was significantly greater in subjects with patent grafts (P<0.002). Amongst patients without graft occlusions, those with new > or =50% diameter stenoses in coronary arteries were more often in functional classes II-III (59 vs. 32%, P = 0.03) than those without new stenoses, but the groups were similar with respect to angina pectoris and exercise tests variables. In patients with graft occlusions, those with and without new > or =50% diameter stenoses were similar with respect to functional class, angina pectoris and exercise test variables. CONCLUSIONS:
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Authors | K Korpilahti, E Engblom, H Hämäläinen, M Syvänne, E Hietanen, M Arstila, P Puukka, T Rönnemaa |
Journal | Journal of internal medicine
(J Intern Med)
Vol. 245
Issue 5
Pg. 545-52
(May 1999)
ISSN: 0954-6820 [Print] England |
PMID | 10363756
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Topics |
- Aged
- Coronary Angiography
- Coronary Artery Bypass
- Coronary Artery Disease
(diagnostic imaging)
- Coronary Disease
(diagnostic imaging)
- Disease Progression
- Exercise Test
- Female
- Finland
- Follow-Up Studies
- Graft Occlusion, Vascular
(diagnostic imaging)
- Humans
- Male
- Middle Aged
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