Objective: In this study, we aimed at a comparative quantitative estimation of the difference in LIMA blood flow between LIMAs treated with topical papaverine alone and LIMAs treated with a combination of topical papaverine plus an intraluminal cocktail of papaverine, nitroglycerine, and milrinone.
Methods: Nearly 50 consecutive patients with similar demographics undergoing elective on-pump CABG were recruited for the study. After pedicled LIMA harvest, topical papaverine was sprayed on the pedicle and kept enveloped in papaverine soaked gauze. LIMA flow was then estimated. Later, intraluminal vasodilator solution of papaverine, NTG, milrinone, and heparinized blood were instilled in LIMA, and LIMA flows were estimated.
Results: The mean LIMA flows with topical papaverine alone was 47.19 mL/min whereas the mean LIMA flows with topical papaverine plus intraluminal cocktail was 104 mL/min. There was a significant difference between the two flows as their mean was 56.815 mL/min and the paired t-test for significance had a P value of 0.0001.
Conclusion: There was a significant difference in the LIMA flow when the LIMA had been treated with the intraluminal instillation of the vasodilator cocktail in addition to the topical application of papaverine solution. Therefore, intraluminal vasodilator cocktail of milrinone, NTG, and papaverine mixed with heparinized blood in addition to topical papaverine is a simple and effective method for LIMA preparation in CABG.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7879920 | PMC |
| http://dx.doi.org/10.4103/aca.ACA_164_19 | DOI Listing |
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