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체외순환 없는 관상동맥우회술 시 우관상동맥의 협착 정도가 우심실박출분율에 미치는 영향

Other Titles
 The Effect of Right Coronary Artery Stenosis on Right Ventricular Function in Patients undergoing Off Pump Coronary Artery Bypass Surgery 
 심재광  ;  곽영란  ;  오영준  ;  이종화  ;  최영림  ;  홍용우 
 KOREAN JOURNAL OF ANESTHESIOLOGY, Vol.49(6) : 810-815, 2005 
Journal Title
Issue Date
off-pump coronary artery bypass graft ; right coronary artery stenosis ; right ventricular function
off-pump coronary artery bypass graft ; right coronary artery stenosis ; right ventricular function
BACKGROUND: Right ventricular (RV) function has important prognostic implications in off-pump coronary artery bypass surgery (OPCAB). This study investigated the effect of the extent of right coronary artery (RCA) stenosis on RV function and hemodynamics in patients undergoing OPCAB.

METHODS: Fifty five patients undergoing OPCAB were divided into two groups according to the degree of RCA stenosis; patients with RCA stenosis of < 70% (Group 1, n = 26) and ≥ 80% (Group 2, n = 29). RV ejection fraction (RVEF) and RV volumetric parameters were measured using thermodilution technique. Hemodynamic variables were recorded 5 min after induction (T1), 5 min after stabilizer application for anastomosis of the left anterior descending coronary artery (T2), the obtuse marginalis branch (T3) and the RCA (T4) and 5 min after sternum closure (T5).

RESULTS: There were no significant differences in hemodynamic variables between two groups during all study periods except in RVEF. RVEF was significantly greater at T2 and T5 in Group 1 than in Group 2. It decreased significantly at T4 in Group 1 and at T3 and T4 in Group 2 compared to values at T1.

CONCLUSIONS: RVEF significantly decreased at T2 and T5 in group 2 patients. Other variables affecting the RV function such as cardiac output, pulmonary vascular resistance and RV end diastolic volume index showed no differences between the two groups. These findings suggest that the degree of RCA stenosis has contributed to the decrease in RVEF in patients undergoing OPCAB.
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1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
Yonsei Authors
Kwak, Young Lan(곽영란) ORCID logo https://orcid.org/0000-0002-2984-9927
Shim, Jae Kwang(심재광) ORCID logo https://orcid.org/0000-0001-9093-9692
Oh, Young Jun(오영준) ORCID logo https://orcid.org/0000-0002-6258-5695
Lee, Jong Wha(이종화)
Hong, Yong Woo(홍용우)
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