Flow characteristics of in-situ internal thoracic artery graft with competitive flow.

ABSTRACT: We report flow characteristics of an in-situ internal thoracic artery (LITA) graft with angiographically competitive flow to the left anterior descending artery (LAD), based upon intraoperative transit-time flow measurement (TTFM) during coronary artery bypass grafting with aortic valve replacement (AVR) and during re-AVR seven years later. Although intraoperative TTFM of the graft showed lower mean flow and higher pulsatility index, suggesting inadequate anastomosis, fast Fourier transform (FFT) analysis of TTFM waveforms presented gradual waning of the amplitude, as shown in patent grafts. FFT analysis of the TTFM waveforms is helpful to judge the patency of LITA to LAD, even with competitive flow.

Learning objective

The internal thoracic artery (LITA) graft to left anterior desce

SUBMITTER: Takami Y 

PROVIDER: S-EPMC10730272 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature