Skeletonized bilateral internal mammary artery harvesting with harmonic scalpel in coronary artery bypass grafting / 中国胸心血管外科临床杂志

@#Objective    To summarize the use of harmonic scalpel to harvest bilateral internal mammary artery in coronary artery bypass grafting (CABG). Methods    The clinical data of 54 patients of bilateral skeletonized internal mammary artery harvesting for CABG in our hospital from January 2016 to May 2020 were analyzed retrospectively. There were 51 males and 3 females with a mean age of 62.37±9.56 years. Results    All patients went through the procedure unevently and discharged from hospital. The number of grafts was 4.07±0.85 per patient, the operation time was 267.21±47.00 min, mechanical ventilation time was 342.43±132.17 min and hospital stay was 12.21±4.43 d. Conclusion    It is safe and effective to use harmonic scalpel to harvest skeletonized bilateral internal mammary artery in CABG.

Application of skeletonized bilateral internal mammary artery to coronary artery bypass grafting / 中国胸心血管外科临床杂志

@#Objective    To evaluate short-term clinical outcomes of skeletonized bilateral internal mammary artery (sBIMA) in coronary artery bypass grafting (CABG). Methods    The clinical data of 62 patients (54 males and 8 females with an average age of 56.8±6.0 years) undergoing isolated CABG using sBIMA in our hospital from October 2016 to May 2017 were retrospectively analyzed. The coronary graft flow, perioperative clinical outcomes and CT results were reviewed. Results    All the operations were carried out under extracorporeal circulation. Anastomosis of 124 internal mammary arteries was performed and 116 great saphenous veins were used simultaneously with an average anastomosis site of 4.5±0.8 for each patient. The cardiopulmonary bypass time was 116.4±22.9 min, aortic clamping time was 83.0±18.3 min, mechanical ventilation time was 20.8±21.3 h and ICU stay was 2.7±1.7 d. The graft flow of left internal mammary artery (LIMA), right internal mammary artery (RIMA) and great saphenous vein were 28.8±12.4 mL/min, 32.8±13.8 mL/min and 41.5±21.5 mL/min, respectively. There was no significant difference in the graft flow between LIMA and RIMA (P=0.112). There was no perioperative mortality, myocardial infarction or cerebrovascular accident. Only one male patient suffered sternal complication and poor wound healing and then received debridement as well as suturing. Coronary CT angiography showed that distal anastomosis of 7 vein grafts and 5 artery grafts was demonstrated shallow and 1 vein graft was undemonstrated, suggesting occlusion. Conclusion    CABG with sBIMA is a safe and reliable technique with excellent early results.

Cirugía de revascularización de miocardio usando arteria mamaria interna bilateral. Resultados a corto plazo / Coronary artery bypass graft surgery with bilateral internal mammary artery. Short-term results

Resumen Introducción: La cirugía de revascularización de miocardio (RVM) sigue siendo el gold standard en el tratamiento de la enfermedad coronaria multiarterial. Se ha demostrado que la RVM con ambas arterias mamarias internas (AMI) tiene mejor resultado de sobrevida a largo plazo. Metodología: Investigación retrospectiva de las cirugías de RVM con AMI bilateral, realizadas en el Instituto Nacional Cardiovascular-INCOR-EsSalud entre enero de 2012 a diciembre de 2015. Los objetivos fueron determinar la mortalidad por cualquier causa y los eventos cardiovasculares mayores a 30 días de seguimiento. Resultados: Treinta y seis pacientes fueron operados con AMI bilateral. No tuvimos mortalidad a 30 días. Los eventos cardiovasculares mayores se presentaron en el 5.56% de los pacientes (stroke 0%, infarto de miocardio posquirúrgico 5.56%, necesidad de nueva intervención coronaria 0%). La incidencia de mediastinitis y/o reconstrucción esternal fue de 0%. Siete pacientes tuvieron infección superficial de la herida, no hubo diferencia significativa entre los diabéticos y los no diabéticos (25% vs. 16.66%, OR: 3.3, p = 0.88) o entre los pacientes con o sin sobrepeso (19.23% vs. 20%, respectivamente, OR: 0.95, IC 95%, p = 0.68) para presentar infección de herida. Conclusiones: La RVM con AMI bilateral es un procedimiento seguro, con bajas tasas de mortalidad y de eventos cardiovasculares mayores a corto plazo. © 2016 Instituto Nacional de Cardiología Ignacio Chávez. Publicado por Masson Doyma México S.A. Este es un artículo Open Access bajo la licencia CC BY-NC-ND (https://creativecommons.org/licenses/by-nc-nd/4.0/).

Abstract Introduction: Coronary artery bypass graft (CABG) surgery remains the reference standard in the treatment of multivessel coronary disease. Several studies have shown that CABG with bilateral internal mammary arteries (BIMA) has better results in long-term survival. Methodology: A retrospective study was conducted on CABG surgeries with BIMA from January 2012 to December 2015 in the National Cardiovascular Institute, INCOR, EsSalud, Peru. The objectives were to determine the mortality and major cardiovascular events at 30 days followup. Results: Of the 36 patients subjected to CABG surgery with BIMA, the 30-day mortality was 0%, with major cardiovascular events occurring in 5.56% of patients (Stroke 0%, postoperative myocardial infarction 5.56%, need of new coronary intervention 0%). The incidence of mediastinitis and/or sternal reconstruction was 0%. Superficial wound infection was observed in 7 patients, with there being no significant difference between diabetics and non-diabetics (25% vs. 16.66%, OR = 3.3, P = .88), or between patients with or without overweight (19.23% vs. 20%, respectively,OR = .95; 95% CI, P = .68). Conclusions: CABG surgery with BIMA is a safe procedure, with low rates of mortality and major cardiovascular events in the short-term. © 2016 Instituto Nacional de Cardiología Ignacio Chávez. Published by Masson Doyma México S.A. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/).

Routine use of bilateral internal mammary artery grafts for myocardial revascularization in diabetic patients: a propensity score matched study / 中国胸心血管外科临床杂志

@#Objective To evaluate the influence of diabetes on coronary artery bypass graft (CABG) surgery using bilateral internal mammary artery (BIMA). Methods From December 2015 to August 2017, 182 patients (153 males, 29 females, age of 56.5±6.8 years) underwent CABG using BIMA. The propensity score was used to create matched diabetes (n=66) and non-diabetes (n=66) cohorts. The operative data, post-operative outcomes and coronary computed tomographic angiography (CTA) of the diabetes group (53 males, 13 females, age of 57.8±7.2 years) and the non-diabetes group (56 males, 10 females, age of 56.3±6.0 years) were analyzed retrospectively. Results There was no peri-operative mortality. There was no difference in operative sternal wound complication (P=0.466), or graft patency (P=0.730 for internal mammary arteries and 0.684 for saphenous vein grafts) between the matched diabetes and the non-diabetes groups. However, patients with elevated glycated hemoglobin (HbA1c) (n=54) had more sternal wound complications (P=0.006). The level of Hb1Ac of the patients with sternal wound complication was significantly higher than that of the patients without sternal wound complication. Conclusion BIMA grafting may be performed routinely even in diabetic patients, without increased complications. However, elevated HbA1c level should be avoided to reduce sternal wound complication.

Minimally Invasive Coronary Bypass by Using Bilateral Internal Mammary Arteries Combine with Percutaneous Coronary Intervention for Multivessel Coronary Artery Disease:Case Report / 中国微创外科杂志

[Summary] A 60-year-old man was admitted with main complaint of chest pain on exertion.Coronary angiogram showed severe triple vessel disease.He underwent the hybrid technique of treatment through two left minithoracotomy incisions.Both internal thoracic arteries were harvested under direct vision.The left internal mammary artery (LIMA)and right internal mammary artery (RIMA) compositing Y grafts was constructed. The LIMA was anastomosed to the left anterior descending branch and the RIMA was anastomosed to the ramus intermedius.The operation time was 306 min.The amount of bleeding during operation was 50 ml.Five days later he underwent percutaneous coronary intervention at right coronary artery lesion successfully.He was discharged from hospital 8 days after operation,and didn’t complain of chest pain during fellow-up for one month.This technique demonstrates to be an effective and minimally invasive alternative to treat patients with multivessel coronary artery disease.