Fractional flow reserve measured via left internal mammary artery after coronary artery bypass grafting: Two case reports.

Autor:	Zhang LY; Gansu Institute of Cardiovascular Diseases, Lanzhou 730050, Gansu Province, China.; Provincial Level Key Laboratory for Molecular Medicine of Major Diseases and Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine, Lanzhou 730000, Gansu Province, China., Gan YR; Gansu Institute of Cardiovascular Diseases, Lanzhou 730050, Gansu Province, China., Wang YZ; Gansu Institute of Cardiovascular Diseases, Lanzhou 730050, Gansu Province, China., Xie DX; Gansu Institute of Cardiovascular Diseases, Lanzhou 730050, Gansu Province, China., Kou ZK; Gansu Institute of Cardiovascular Diseases, Lanzhou 730050, Gansu Province, China., Kou XQ; Gansu Institute of Cardiovascular Diseases, Lanzhou 730050, Gansu Province, China., Zhang YL; Gansu Institute of Cardiovascular Diseases, Lanzhou 730050, Gansu Province, China., Li B; Gansu Institute of Cardiovascular Diseases, Lanzhou 730050, Gansu Province, China., Mao R; Gansu Institute of Cardiovascular Diseases, Lanzhou 730050, Gansu Province, China., Liang TX; Gansu Institute of Cardiovascular Diseases, Lanzhou 730050, Gansu Province, China., Xie J; Department of Functional, Lanzhou First People's Hospital, Lanzhou 730050, Gansu Province, China., Jin JJ; Department of Cardiology, The First Hospital of Lanzhou University, Lanzhou 730000, Gansu Province, China., Yang JM; Department of Functional, Lanzhou First People's Hospital, Lanzhou 730050, Gansu Province, China. 503490860@qq.com.
Jazyk:	angličtina
Zdroj:	World journal of clinical cases [World J Clin Cases] 2023 May 06; Vol. 11 (13), pp. 3045-3051.
DOI:	10.12998/wjcc.v11.i13.3045
Abstrakt:	Background: The fractional flow reserve (FFR) has made the treatment of coronary heart disease more precise. However, there are few reports on the measurement of FFR via the left internal mammary artery (LIMA). Herein, we described the determination of further treatments by measuring FFR via the LIMA in 2 cases after coronary artery bypass grafting (CABG). Case Summary: Case 1 was a 66-year-old male who was admitted due to "chest tightness after CABG." The patient underwent CABG 7 years prior due to coronary heart disease. Coronary artery angiography showed complete occlusion of the left anterior descending artery (LAD), and subtotal occlusion of the third segment of the right coronary artery. On arterial angiography, there was 85% stenosis at the distal end of the anastomosis of the LIMA-LAD graft. FFR via LIMA was determined at 0.75. Thus, balloon dilation was performed in Case 1. FFR after balloon dilation was 0.94. Case 2 was a 60-year-old male who was admitted due to "chest tightness after CABG." The patient underwent CABG 6 years prior due to coronary heart disease. There was 60% segmental stenosis in the middle segment of LAD and 75% anastomotic stenosis. FFR measured via LIMA was 0.83 (negative); thus the intervention was not performed. Case 2 was given drug treatments. At the 3-mo follow-up, there was no recurrence of chest tightness or shortness of breath in both cases. They are currently under continual follow-up. Conclusion: We provided evidence that FFR measurement via grafted blood vessels, especially LIMA, after CABG is a good method to determine the intervention course. Competing Interests: Conflict-of-interest statement: All authors report having no relevant conflicts of interest for this article. The funders played no role in the study. (©The Author(s) 2023. Published by Baishideng Publishing Group Inc. All rights reserved.)
Databáze:	MEDLINE
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