June 13, 2016European Journal of Cardio-Thoracic SurgeryOpen Access

Techniques and standards in intraoperative graft verification by transit time flow measurement after coronary artery bypass graft surgery: a critical review

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Why the study?

Does transit time flow measurement (TTFM) predict postoperative graft failure in patients undergoing CABG surgery?

Population

Patients undergoing coronary artery bypass graft surgery evaluated with intraoperative transit time flow…

Design

Review

Authors

LNLars NiclaussInterventional / Structural Cardiology

Discussion

Member takes

Implication

Proposed TTFM thresholds may aid CABG graft assessment; leaves open need for prospective validation before clinical adoption.

Structured PICO

Does transit time flow measurement (TTFM) predict postoperative graft failure in patients undergoing CABG surgery?

Population

Patients undergoing coronary artery bypass graft (CABG) surgery evaluated with intraoperative transit time flow measurement (TTFM) and postoperative imaging follow-up (9 publications included).

Intervention

Intraoperative transit time flow measurement (TTFM)

Outcome

Postoperative graft failure rate assessed by imaging follow-upsurrogate

TTFM parameters such as mean graft flow and pulsatility index can help predict graft patency in CABG surgery, though low sensitivity and methodological variations remain major limitations.

Limitations

Low sensitivity for TTFM to reliably detect graft failure
Methodical limitations and varying threshold values for TTFM
Influence of quantity and quality of the graft perfusion area on TTFM and follow-up outcome was not included in any studies
Small number of radial and other arterial grafts analyzed

Cite This Study

Lars Niclauss (2016) studied this question.

synapsesocial.com/papers/6a8718566fbb37794f7cb767 https://doi.org/10.1093/ejcts/ezw203

Topics

Coronary artery disease

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Techniques and standards in intraoperative graft verification by transit time flow measurement after coronary artery bypass graft surgery: a critical review

Discussion

Member takes

Implication

Structured PICO

Limitations

Cite This Study

Topics

Techniques and standards in intraoperative graft verification by transit time flow measurement after coronary artery bypass graft surgery: a critical review

Discussion

Member takes

Implication

Structured PICO

Limitations

Cite This Study

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