{"title":"Total arterial revascularization with RIMA-LIMA-Y configuration in patients with left subclavian artery stenosis.","authors":"Anit Kumar, Bharath Sundar, Swanand Khapli, Sayyed Azhar Salim Ahmed, Dhiraj Barman, Lalit Kapoor, Unmesh Chakraborty","doi":"10.1177/02184923241284318","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Subclavian artery stenosis (SAS) occurs in 6% of patients undergoing coronary artery bypass grafting (CABG). Complications such as subclavian-coronary steal are common. Revascularization options in such cases remain debatable.</p><p><strong>Methods: </strong>In this case series, all patients with angina, had severe triple vessel disease on angiography. All tests including computed tomography (CT) angiography of neck vessels, were done as part of routine workup for CABG.</p><p><strong>Results: </strong>The patients, all males, had a mean age of 66.5 years with three of them having hypertension and diabetes. All were ex-smokers with mean ejection fraction (EF) of 60.1%. CT angiography of neck vessels revealed that two patients had moderate to severe while one had severe left SAS and another had severe proximal left internal mammary artery (LIMA) stenosis. Total arterial revascularization was performed, with an average of 3.5 distal grafts. The LIMA graft was employed in a Y graft configuration, anastomosed to in-situ right internal mammary artery (RIMA). All patients had uneventful postoperative stay and were discharged with a mean hospital stay of 3.8 days. There were no postoperative strokes, myocardial infarction, neurological symptoms, or change in EF. At 6-month follow-up, they were asymptomatic and doing well.</p><p><strong>Conclusion: </strong>The RIMA-LIMA-Y configuration can be a safe, viable option in CABG for patients with left SAS. It is challenging, with re-entry and judicious utilization of the length of LIMA being of paramount importance. The importance of CT angiography of neck vessels to detect SAS cannot be under-emphasized.</p>","PeriodicalId":35950,"journal":{"name":"ASIAN CARDIOVASCULAR & THORACIC ANNALS","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ASIAN CARDIOVASCULAR & THORACIC ANNALS","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1177/02184923241284318","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Medicine","Score":null,"Total":0}
引用次数: 0
Abstract
Background: Subclavian artery stenosis (SAS) occurs in 6% of patients undergoing coronary artery bypass grafting (CABG). Complications such as subclavian-coronary steal are common. Revascularization options in such cases remain debatable.
Methods: In this case series, all patients with angina, had severe triple vessel disease on angiography. All tests including computed tomography (CT) angiography of neck vessels, were done as part of routine workup for CABG.
Results: The patients, all males, had a mean age of 66.5 years with three of them having hypertension and diabetes. All were ex-smokers with mean ejection fraction (EF) of 60.1%. CT angiography of neck vessels revealed that two patients had moderate to severe while one had severe left SAS and another had severe proximal left internal mammary artery (LIMA) stenosis. Total arterial revascularization was performed, with an average of 3.5 distal grafts. The LIMA graft was employed in a Y graft configuration, anastomosed to in-situ right internal mammary artery (RIMA). All patients had uneventful postoperative stay and were discharged with a mean hospital stay of 3.8 days. There were no postoperative strokes, myocardial infarction, neurological symptoms, or change in EF. At 6-month follow-up, they were asymptomatic and doing well.
Conclusion: The RIMA-LIMA-Y configuration can be a safe, viable option in CABG for patients with left SAS. It is challenging, with re-entry and judicious utilization of the length of LIMA being of paramount importance. The importance of CT angiography of neck vessels to detect SAS cannot be under-emphasized.
期刊介绍:
The Asian Cardiovascular and Thoracic Annals is an international peer-reviewed journal pertaining to cardiovascular and thoracic medicine. Besides original clinical manuscripts, we welcome research reports, product reviews, reports of new techniques, and findings of special significance to Asia and the Pacific Rim. Case studies that have significant novel original observations, are instructive, include adequate methodological details and provide conclusions. Workshop proceedings, meetings and book reviews, letters to the editor, and meeting announcements are encouraged along with relevant articles from authors.