Effects of degree of revascularization and graft patency on training ability in recovery phase after coronary artery bypass graft surgery.
- VernacularTitle:冠状動脈血行再建の程度と開存性が術後回復期のトレーニング成績におよぼす影響
- Author:
KAZUO TSUYUKI
;
YASUO KIMURA
;
TAMAE OGATA
;
MASAHIKO AIHARA
;
KWANGCHOL CHANG
;
KYOSUKE UKAI
;
HIROKI HASE
;
KUNIO EBINE
- Publication Type:Journal Article
- Keywords:
CABG;
degree of revascularization;
graft patency;
training ability;
recovery phase
- From:Japanese Journal of Physical Fitness and Sports Medicine
1992;41(4):457-466
- CountryJapan
- Language:Japanese
-
Abstract:
A study was conducted to clarify training ability in the recovery phase after coronary artery bypass graft surgery (CABG) . Thirty-one patients who underwent CABG were divided into four groups according to the degree of revascularization and graft patency: complete revascularization with graft patency (group A), complete revascularization without graft patency (group B), incomplete revascularization with graft patency (group C) and incomplete revascularization without graft patency (group D) . In all patients, exercise training was started one month after CABG and continued for one month. Treadmill exercise testing was performed at three points during the clinical course (one month before CABG, one month after CABG and at the end of exercise training) . Functional aerobic impairment (FAT), myocardial aerobic impairment (MAT), peripheral circulatory impairment (PCI) and electrocardiogram were measured at these points. The results obtained were as follows:
1) FAI was improved significantly after CABG as compared with before CABG in groups A and C, and was also improved significantly after exercise training as compared with before training in groups A and C. The degree of improvement in FAI in group A was larger than in group C.
2) Althought MAT was improved significantly after CABG as compared with before CABG in groups A and C, it was improved significantly after exercise training as compared with before training only in group A.
3) PCI remained unchanged before and after CABG in all groups. However, it was improved significantly after training as compared with before training in groups A and C.
4) The number of patients with a positive finding in the exercise test was reduced by CABG in all groups, and was decreased by training only in group A. However, CABG produced a significant decrease in groups A, B and C.
In conclusion, the present findings suggest that while graft patency is probably a major factor, the degree of revascularization may play only a subsidiary role in determining trainability soon after CABG.
