Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Short-Term Clinical Results of Minimally Invasive Direct Coronary Artery Bypass (MIDCAB) Procedure

Version 1 : Received: 24 April 2024 / Approved: 24 April 2024 / Online: 24 April 2024 (11:06:36 CEST)

How to cite: Alaj, E.; Seidiramool, V.; Ciobanu, V.; Bakhtiary, F.; Monsefi, N. Short-Term Clinical Results of Minimally Invasive Direct Coronary Artery Bypass (MIDCAB) Procedure. Preprints 2024, 2024041618. https://doi.org/10.20944/preprints202404.1618.v1 Alaj, E.; Seidiramool, V.; Ciobanu, V.; Bakhtiary, F.; Monsefi, N. Short-Term Clinical Results of Minimally Invasive Direct Coronary Artery Bypass (MIDCAB) Procedure. Preprints 2024, 2024041618. https://doi.org/10.20944/preprints202404.1618.v1

Abstract

Objectives: Minimally invasive direct coronary artery bypass (MIDCAB) is an alternative for revascularisation of isolated left anterior descending (LAD) or as multi-vessel (MV) procedure for diagonal branch (RD) or circumflex artery (RCX) region. Methods: From 2021 to 2022 91 patients underwent MIDCAB procedure in our heartcenter. 80% were male. Eighty percent of the patients had two or three vessel coronary artery disease. Mean age was 65±10 years. The left internal mammary artery (LIMA) was anastomosed to the left anterior descending via left minithoracotomy approach in all patients. Fourteen patients received multi-vessel MIDCAB (15%) with two or three anastomoses a saphenous vein graft (as T-graft to LIMA) was anastomosed to RD or RCX. Results: Mean operation time was 2.6±0.8 hours. The 30-day mortality was 0. Mean required packed red blood cells (pRBC) was 0.4±1.2 unit. The intensive care unit stay (ICU) was 1.5±1.6 days mean. We observed two patients (2%) with wound infections postoperatively. Four patients underwent rethoracotomy because of bleeding. Mean follow-up time was 1.5±0.5 years. Seventy-eight patients (86%) were in New York Heart Association (NYHA) class 1, 11 patients (12%) were in NYHA class 2. One patient received percutaneous coronary intervention due to de novo stenosis of the RCA. Late mortality was 2%. The Kaplan-Meier survival rate was 98.8% at 1 and 2 years. Conclusion: MIDCAB is technically demanding. Our postoperative and short-term clinical results demonstrate that this procedure is safe and feasible. Optimal patient selection and an experienced surgical team are mandatory.

Keywords

minimally invasive cardiac surgery; , coronary artery bypass; offpump; endoscopic harvesting of mammary artery

Subject

Medicine and Pharmacology, Cardiac and Cardiovascular Systems

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