title: Prophylactic value of preincision intra-aortic balloon pump: analysis of a statewide experience.
abstract: OBJECTIVE
  The objective of this study was to determine whether preincision use of an intra-aortic balloon pump improves survival and shortens postoperative length of stay in hemodynamically stable, high-risk patients undergoing coronary artery bypass grafting.
  
  
  METHODS
  A post hoc analysis of the Alabama CABG Cooperative Project database was performed by using propensity scores to model the likelihood of receiving a prophylactic preincision intra-aortic balloon pump. Every patient receiving a prophylactic preincision balloon pump was matched with another patient of similar propensity score who did not receive one. We then compared outcomes for matched pairs.
  
  
  RESULTS
  There were 7581 patients of whom 592 received a prophylactic preincision balloon pump. Patients with preoperative renal insufficiency, heart failure, or left main coronary artery disease, or who had undergone previous bypass grafting were significantly more likely to receive a prophylactic preincision balloon pump. By using propensity scores, we matched 550 patients who received a prophylactic preincision balloon pump with 550 who did not. Survival did not significantly differ by whether a prophylactic preincision balloon pump was used. However, surviving patients who received a preincision balloon pump had a significantly shorter postbypass length of stay (7 +/- 7.3 days) than did matched patients not receiving a balloon pump (8 +/- 6.2 days; P <.05).
  
  
  CONCLUSIONS
  No survival advantage was found for use of a prophylactic intra-aortic balloon pump in hemodynamically stable, high-risk patients undergoing bypass grafting, as opposed to placing a balloon pump on an "as needed" basis during or after the operation. However, the patients receiving the balloon pump had improved convalescence as shown by significantly shorter length of stay.
authors.affiliation: Departments of Surgery, Medicine, and Anesthesiology, University of Alabama at Birmingham, Birmingham. wholman@its.uab.edu
authors.forename: W L
authors.initials: WL
authors.lastname: Holman
authors.forename: Q
authors.initials: Q
authors.lastname: Li
authors.forename: C I
authors.initials: CI
authors.lastname: Kiefe
authors.forename: D C
authors.initials: DC
authors.lastname: McGiffin
authors.forename: E D
authors.initials: ED
authors.lastname: Peterson
authors.forename: R M
authors.initials: RM
authors.lastname: Allman
authors.forename: V G
authors.initials: VG
authors.lastname: Nielsen
authors.forename: A D
authors.initials: AD
authors.lastname: Pacifico
mesh_terms: D000368:Aged; D000407:Alabama / Q000453:epidemiology; D000704:Analysis of Variance; D015897:Comorbidity; D001026:Coronary Artery Bypass / Q000009:adverse effects / Q000401:mortality; D003327:Coronary Disease / Q000150:complications / Q000401:mortality / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006439:Hemodynamics; D006801:Humans; D007423:Intra-Aortic Balloon Pumping / Q000379:methods / Q000706:statistics & numerical data; D007430:Intraoperative Care / Q000379:methods*; D007902:Length of Stay / Q000706:statistics & numerical data; D016015:Logistic Models; D008297:Male; D018579:Patient Selection; D011183:Postoperative Complications / Q000209:etiology / Q000401:mortality / Q000517:prevention & control; D016016:Proportional Hazards Models; D012307:Risk Factors; D016019:Survival Analysis; D013997:Time Factors; D016896:Treatment Outcome