Effects of intra-aortic balloon pumping on graft flow in coronary surgery: an intraoperative transit-time flowmetric study

The Annals of Thoracic Surgery
Yoshiyuki Takami, Hiroshi Masumoto

Abstract

We investigated hemodynamic effects of intra-aortic balloon pumping (IABP) in in-situ and aorta-coronary (A-C) grafts during coronary artery bypass grafting (CABG). One hundred seventy-two grafts, including 84 in-situ left internal thoracic arteries (LITAs), were examined intraoperatively with a transit-time flowmeter in 84 patients who had prophylactic IABP. The following measurements were obtained for each graft during off-IABP and on-IABP: mean flow, maximal flow, pulsatility index, and diastolic filling index. Coronary angiograms were performed 14 +/- 5 days after coronary artery bypass graft surgery to verify the patency of the grafts. All measurements of 163 patent and measurable grafts were significantly increased with IABP: mean flow 46 +/- 27 to 51 +/- 29 mL/min; maximal flow 87 +/- 52 to 121 +/- 69 mL/min; pulsatility index 2.2 +/- 1.4 to 3.1 +/- 1.4; and diastolic filling index 64% +/- 8% to 71% +/- 9% (p < 0.001). Among them, the degrees of increase of mean flow and diastolic filling index were significantly different between the in-situ LITAs and A-C grafts (mean flow 18% +/- 20% versus 10% +/- 15%, p = 0.04; diastolic filling index 10% +/- 8% versus 14% +/- 9%, p = 0.04). IABP assist significantly increases graft ...Continue Reading

References

May 20, 1993·The American Journal of Cardiology·E O OfiliM J Kern
Sep 2, 2000·The Annals of Thoracic Surgery·J T ChristensonM Schmuziger
Oct 29, 2002·The Annals of Thoracic Surgery·Jan T ChristensonPhilip M Urban
Oct 29, 2002·The Annals of Thoracic Surgery·Roger J F BaskettGregory M Hirsch
Nov 25, 2005·The Annals of Thoracic Surgery·Wael HassaneinJuergen Ennker
Aug 29, 2006·The Journal of Thoracic and Cardiovascular Surgery·Gabriele Di GiammarcoMichele Di Mauro

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Citations

Apr 16, 2009·Clinical Research in Cardiology : Official Journal of the German Cardiac Society·Christian JungMarkus Ferrari
Dec 26, 2013·The Korean Journal of Thoracic and Cardiovascular Surgery·Kazim ErgüneşAli Gurbuz
Oct 27, 2010·International Journal of Cardiology·Antonino S RubinoAttilio Renzulli
Nov 1, 2013·Interactive Cardiovascular and Thoracic Surgery·Matija JelencIvan Kneževic
Nov 20, 2020·Annals of Thoracic and Cardiovascular Surgery : Official Journal of the Association of Thoracic and Cardiovascular Surgeons of Asia·Ayako IidaMotomi Shiono

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