title: Short-term graft patency of sequential and Y-graft in open heart surgery with transit time flow measurement.
abstract: OBJECTIVE
  In this prospective study, we aimed to compare flow characteristics and the short term patency of sequential and y-grafts by intraoperative transit time flow measurement.
  
  
  METHODS
  Sixty patients were selected from 1374 isolated coronary bypass operations. Group 1 (N.=36) consisted of sequential grafted, Group 2 (N.=24) consisted of y-grafted patients. Intraoperative graft flow measurement was done with a transit time flow meter at stable hemodynamic conditions. We follow up the groups at the 30th day of the operation.
  
  
  RESULTS
  The mean flows at measurement set up were 43.2±19.7 mL/min in Group 1 and 43.6±21.7 mL/min in Group 2. After distal graft clamp removal the same values were 63.4±20.9 mL/min in Group 1 and 67.3±35.3 ml/mins in Group 2. At the 30th day of the operation no patients died, and none of them had an acute myocardial infarction.
  
  
  CONCLUSIONS
  The percent of flow increase in sequential graft group was higher but the difference of the percent of flow increase between groups was not statistically significant.
authors.affiliation: Mustafa Kemal University, School of Medicine, Department of Cardiovascular Surgery, Zülüflühan Köyü, Antakya, Hatay, Turkey - mehmetacipayam@gmail.com.
authors.forename: M
authors.initials: M
authors.lastname: Acipayam
authors.forename: H
authors.initials: H
authors.lastname: Uncu
authors.forename: M
authors.initials: M
authors.lastname: Taraktaş
authors.forename: L
authors.initials: L
authors.lastname: Altinay
authors.forename: M
authors.initials: M
authors.lastname: Hakan Zor
authors.forename: P
authors.initials: P
authors.lastname: Doğan
authors.forename: I
authors.initials: I
authors.lastname: Özsöyler
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001783:Blood Flow Velocity; D001026:Coronary Artery Bypass / Q000379:methods*; D003326:Coronary Circulation; D003331:Coronary Vessels / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D013997:Time Factors; D016896:Treatment Outcome; D014654:Vascular Patency