title: [Comparative studies of the blood lipids and apolipoproteins A1 and B in patients underwent coronary artery bypass grafting under on-pump and off-pump bypass].
abstract: OBJECTIVE
  To compare the influences of coronary artery bypass grafting under on-pump (CCABG) and off-pump bypass (OPCAB) on blood lipids and Apolipoproteins A(1) and B.
  
  
  METHODS
  41 patients underwent CCABG and 38 patients OPCAB. The serum levels of total cholesterol (TC), triglycerides (TG), HDL-C cholesterol (HDL-C), LDL-C cholesterol (LDL-C) and Apolipoproteins A(1) and B were monitored before and 24 h, 72 h, 7 d, 10 d, 14 d, 28 d after operation in all patients. None of them received lipid-lowering drug during the test.
  
  
  RESULTS
  (1) There were no difference between two groups. The serum levels of TC, LDL-C decreased significantly in 24 h, 72 h, 7d, 10 d, 14 d after operation (P < 0.001). The level in 24 h was the lowest, then began increasing; until 28 days after operation the serum levels of TC, LDL-C exceeded preoperative baseline level (P < 0.05). (2) the level of TG and HDL-C in 24 h was the lowest (P < 0.001), then began increasing (P > 0.05). Until 28 days after operation the serum levels of TG exceeded preoperative baseline level (P < 0.05). (3) the serum levels of ApoA(1) decreased significantly in 24 h, 72 h, 7 day, 10 day, 14 day after operation (P < 0.001). The level in 24 h was the lowest, and lasted until 28 days after operation (P > 0.05); the serum levels of ApoB in 24 h was the lowest, then began increasing (P > 0.05).
  
  
  CONCLUSIONS
  There presents significant influence on blood lipids and Apolipoproteins A(1) and B after CABG, and initiate lipid (s)-lowering therapy as soon as possible.
authors.affiliation: Heart-Lung-Blood-vessel Center, Institute of Heart-Lung-Blood-vessel Disease, Department of Thoracic-Cardiovascular Surg., Tongji Hospital, Tongji University, Shanghai 200092, China.
authors.forename: Yun-qing
authors.initials: YQ
authors.lastname: Mei
authors.forename: Ya-feng
authors.initials: YF
authors.lastname: Lu
authors.forename: Chu-zhong
authors.initials: CZ
authors.lastname: Tang
authors.forename: Ming-ying
authors.initials: MY
authors.lastname: Wu
authors.forename: Da-yi
authors.initials: DY
authors.lastname: Hu
mesh_terms: D001055:Apolipoproteins B / Q000097:blood; D053241:Apoprotein(a) / Q000097:blood; D002315:Cardiopulmonary Bypass; D002784:Cholesterol / Q000097:blood; D008076:Cholesterol, HDL / Q000097:blood; D008078:Cholesterol, LDL / Q000097:blood; D001026:Coronary Artery Bypass; D047549:Coronary Artery Bypass, Off-Pump; D006801:Humans; D008055:Lipids / Q000097:blood*; D014280:Triglycerides / Q000097:blood
chemical_list: D001055:Apolipoproteins B; D008076:Cholesterol, HDL; D008078:Cholesterol, LDL; D008055:Lipids; D014280:Triglycerides; D002784:Cholesterol; D053241:Apoprotein(a)