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  • Meeting abstract
  • Open Access

External stenting of saphenous vein bypass grafts does not affect intraoperative transit-time flow measurement

  • 1,
  • 1,
  • 1,
  • 1,
  • 1,
  • 1,
  • 2,
  • 1 and
  • 1
Journal of Cardiothoracic Surgery201510 (Suppl 1) :A297

https://doi.org/10.1186/1749-8090-10-S1-A297

  • Published:

Keywords

  • Coronary Artery Bypass
  • Coronary Artery Bypass Operation
  • Saphenous Vein Graft
  • Mesh Group
  • Concomitant Procedure

Background/Introduction

Saphenous vein grafts (SVG) are the most commonly used conduits for coronary artery bypass operations (CABG), despite their sub-optimal long-term patency. External stenting of SVG (eSVS® mesh) was recently proposed to improve their long term patency. Transit time flow measurement (TTFM) is a well described method for intraoperative quality control for CABG.

Aims/Objectives

The aim of this study is to assess whether external stenting of SVG affects perioperative TTFM.

Methods

Twenty six patients who underwent elective CABG were divided into two groups based usage of externally stented SVG (eSVS® mesh, n = 13), or bare SVG (n = 13). The anastomotic quality were evaluated with TTFM using the Medi-Stim VeriQ flowmeter and a 4 mm probe. Perioperative data were given as median (min - max) and compared between groups (Table 1).

Table 1

 

Mesh covered SVG (n = 13)

Bare SVG (n = 13)

P

 

median

min-max

median

min-max

 

Age (years)

64

51-82

64

59-80

>0.05*

Bypass grafts

3

1-4

3

2-4

>0.05*

Simultaneous concomitant operation

3 (23%)

2 (15%)

>0.05°

CBP time (min)

112

57-161

94

52-134

>0.05*

Cross Clamp Time (min)

69

34-122

63

28-96

>0.05*

TTFM (ml/min)

59

19-106

43

30-155

>0.05*

PI

1.9

1.2-4.9

2.3

1.3-2.9

>0.05*

*Mann-Whitney U Test, ° Fisher's exact test

Results

There was no significant difference between two groups regarding pre and peri-operative parameters, although more patients in the eSVS® mesh group had concomitant procedures (3, 23% vs. 2, 15%, P > 0.99). All SVG were patent in both groups at the end of the surgical procedure and TTFM values were similar. eSVS® mesh group had a trend for longer cardiopulmonary and aortic cross clamping times, which didn't reach statistical significance.

Conclusion

External stenting of SVG by eSVS® mesh does not extend the operative times. All SVG showed excellent flow and eSVS® mesh coverage didn't impede TTFM or provide graft flow different to controls.

Authors’ Affiliations

(1)
Division of Cardiovascular Surgery, University Hospitals and Medical Faculty of Geneva, Geneva, Geneva, 1211, Switzerland
(2)
Division of Anaesthesiology, University Hospitals and Medical Faculty of Geneva, Geneva, Geneva, 1211, Switzerland

Copyright

© Depboylu et al. 2015

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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