Search citation statements
Paper Sections
Citation Types
Year Published
Publication Types
Relationship
Authors
Journals
Highlights. In recent decades, the number of patients with diffuse, multivessel coronary artery disease has increased due to widespread use of endovascular methods of treatment, long-term conservative management of patients, and the expansion of indications for surgical revascularization. In order to improve the results of treatment, in 2007 academician Yu. L. Shevchenko developed and began using the method of stimulation of extracardiac angiogenesis – «YurLeon». The present article demonstrates the long-term results of supplementing coronary bypass surgery with this method in patients with diffuse coronary artery disease.Aim. To evaluate long-term results of coronary bypass surgery supplemented by extracardiac myocardial revascularization.Methods. The prospective, randomized study included 205 patients with diffuse, multivessel coronary artery disease who were treated at the St. George Thoracic and Cardiovascular Surgery Clinic, National Medical and Surgical Center named after N.I. Pirogov. The majority of patients were men – 75% (n = 153), whereas women accounted for 25% (n = 52), all patients were 60 to 78 years old (67.3±5.74 years). The group I consisted of patients with coronary bypass surgery supplemented with the «YurLeon» technique, the group II consisted of patients with coronary bypass grafting only. All patients provided consent to participate in the study. The clinical condition of patients, echocardiography, myocardial scintigraphy and coronary angiography data, quality of life indicators (the 36-Item Short Form Health Survey) were assessed.Results. In the long-term postoperative period (36 months), the group I, compared with the group II, presented with a statistically significant decrease in the functional class of angina pectoris (1[1–2] vs. 2[1–2], p = 0.02); fewer adverse events: myocardial infarction (4.5% vs. 11.6%, p = 0.011), recurrent angina pectoris (10% vs. 17.9%, p = 0.038); an increase in the left ventricular ejection fraction (59.0±5.15% vs. 53.2±6.13%, p = 0.001); a decrease in the Summed Rest Score (SRS) (4.5±3.5 vs. 8.4±5.7, p = 0.012) according to myocardial scintigraphy with technetril; a decrease in the Summed Thickening Score (STS) (6.1±3.3 vs. 10.7±2.9, p = 0.012); a decrease in the hibernating myocardium (3.5±2.2% vs. 7.4±5.1%, p = 0.03); additional extracardiac sources were found in the group I according to coronary graft angiography, there were no statistically significant differences between the groups by occluded autogenous venous bypass grafts (in the group I – 23 out of 46 venous conduits (49%), in the group II – 30 out of 49 venous conduits (51%), p = 0.089); The groups differed in terms of quality of life (the 36-Item Short Form Health Survey): physical functioning (87.3±10.32 vs. 75.3±14.15 points, p = 0.001); role-based functioning due to physical condition (90.1±10.50 vs. 79.7±7.01 points, p = 0.012); pain (93.10±6.37 vs. 80.5±5.21 points, p = 0.03); the total physical component of health (57.9±5.4 vs. 45.8±6.1 points, p = 0.012).Conclusion. We have accumulated 15 years of experience in conducting complex myocardial revascularization in patients with coronary artery disease and diffuse coronary atherosclerosis, which allowed us to prove the effectiveness and safety of the YurLeon technique.
Highlights. In recent decades, the number of patients with diffuse, multivessel coronary artery disease has increased due to widespread use of endovascular methods of treatment, long-term conservative management of patients, and the expansion of indications for surgical revascularization. In order to improve the results of treatment, in 2007 academician Yu. L. Shevchenko developed and began using the method of stimulation of extracardiac angiogenesis – «YurLeon». The present article demonstrates the long-term results of supplementing coronary bypass surgery with this method in patients with diffuse coronary artery disease.Aim. To evaluate long-term results of coronary bypass surgery supplemented by extracardiac myocardial revascularization.Methods. The prospective, randomized study included 205 patients with diffuse, multivessel coronary artery disease who were treated at the St. George Thoracic and Cardiovascular Surgery Clinic, National Medical and Surgical Center named after N.I. Pirogov. The majority of patients were men – 75% (n = 153), whereas women accounted for 25% (n = 52), all patients were 60 to 78 years old (67.3±5.74 years). The group I consisted of patients with coronary bypass surgery supplemented with the «YurLeon» technique, the group II consisted of patients with coronary bypass grafting only. All patients provided consent to participate in the study. The clinical condition of patients, echocardiography, myocardial scintigraphy and coronary angiography data, quality of life indicators (the 36-Item Short Form Health Survey) were assessed.Results. In the long-term postoperative period (36 months), the group I, compared with the group II, presented with a statistically significant decrease in the functional class of angina pectoris (1[1–2] vs. 2[1–2], p = 0.02); fewer adverse events: myocardial infarction (4.5% vs. 11.6%, p = 0.011), recurrent angina pectoris (10% vs. 17.9%, p = 0.038); an increase in the left ventricular ejection fraction (59.0±5.15% vs. 53.2±6.13%, p = 0.001); a decrease in the Summed Rest Score (SRS) (4.5±3.5 vs. 8.4±5.7, p = 0.012) according to myocardial scintigraphy with technetril; a decrease in the Summed Thickening Score (STS) (6.1±3.3 vs. 10.7±2.9, p = 0.012); a decrease in the hibernating myocardium (3.5±2.2% vs. 7.4±5.1%, p = 0.03); additional extracardiac sources were found in the group I according to coronary graft angiography, there were no statistically significant differences between the groups by occluded autogenous venous bypass grafts (in the group I – 23 out of 46 venous conduits (49%), in the group II – 30 out of 49 venous conduits (51%), p = 0.089); The groups differed in terms of quality of life (the 36-Item Short Form Health Survey): physical functioning (87.3±10.32 vs. 75.3±14.15 points, p = 0.001); role-based functioning due to physical condition (90.1±10.50 vs. 79.7±7.01 points, p = 0.012); pain (93.10±6.37 vs. 80.5±5.21 points, p = 0.03); the total physical component of health (57.9±5.4 vs. 45.8±6.1 points, p = 0.012).Conclusion. We have accumulated 15 years of experience in conducting complex myocardial revascularization in patients with coronary artery disease and diffuse coronary atherosclerosis, which allowed us to prove the effectiveness and safety of the YurLeon technique.
Introduction. In recent decades, the number of patients with coronary artery disease and diffuse coronary artery disease has significantly increased. Performing the full volume of myocardial revascularization in such patients is not always possible due to the nature of the lesion of the coronary bed, and the risk of shunt dysfunction in the early postoperative period remains high. Therefore, the use of ultrasound intraoperative flowmetry in coronary bypass surgery is especially necessary, but the issues of optimal indicators of graft patency remain unresolved.The Objective was to evaluate the possibilities of using intraoperative ultrasound flowmetry in patients with diffuse coronary bed lesion.Methods and Materials. The study included 188 patients with diffuse coronary bed lesion who underwent coronary bypass surgery at the St. George Thoracic and Cardiovascular Surgery Clinic, Pirogov National Medical and Surgical Center and the Center for Cardiology and Cardiovascular Surgery, Rostov-on-Don. Ultrasound Doppler flowmetry was performed in all patients, the following indicators were evaluated: the average volumetric blood flow rate (MGF – mean graft flow), the pulsation index (PI – pulsation index) and the percentage of diastolic volume filling (DF – diastolic filling). Coronaroshuntography was performed in 29 patients in the early postoperative period (within 2–6 hours after surgery). The comparison of angiographic data (slowing of blood flow through the shunt, stenosis, occlusion) with intraoperative parameters of ultrasound flowmetry was carried out.Results. 405 primary intraoperative flowmetry samples were analyzed in 188 patients with diffuse coronary lesion. It was found that 19.7 % of intraoperative flowmetry indicators were less than the recommended values: 9.3 % of autoarterial and 25 % of autovenous shunts to the anterior descending artery; 20.8 % of autovenous shunts to the diagonal artery; 33.3 % – to the envelope and 21.9 % – to the right coronary artery. In 21 % of the observations, technical problems were identified (defect of proximal or distal anastomoses; bend of the conduit; dissection of the autoarterial shunt), which were eliminated; in other cases, no technical problems were identified. When comparing the data of intraoperative ultrasound flowmetry and shuntography in the early postoperative period, statistical differences were revealed in patients with normal patency of venous shunts and their dysfunction: MGF 53±18 (46–59) vs. 38±15 (29–47), p=0.014; PI: 3±1 (2–3) vs. 7±1 (6–8), p≤0.001; DF: 79±15 (64–91) vs. 48±17 (41–60), p=0.005. There are differences in the flowmetry of autoarterial shunts depending on the risk of their dysfunction: MGF 32±11 (28–44) vs. 20±5 (13–24), p=0.005; PI: 2±1 (1–4) vs. 7±2 (5–9), p≤0.001; DF: 70±12 (61–85) vs. 50±15 (45–64), p=0.005.Conclusion. Intraoperative ultrasound flowmetry is a safe and effective tool for assessing blood flow through conduits during coronary bypass surgery in patients with coronary artery disease and diffuse coronary bed lesions. According to our study, to predict the normal patency of shunts in the early postoperative period, it is advisable to use targets MGF above 28 ml/min for internal thoracic artery and 65 ml/min for venous shunts, PI less than 5.0 for all types of conduits, DF above 60 % for autoarterial shunt, and more than 68 % for autovenous graft.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.