Objective:To evaluate the safety and effectiveness of robot-assisted coronary artery bypass(RACAB).Methods:We retrospectively analyzed the clinical outcomes from 252 consecutive patients who underwent RACAB in our center between April 2021 and August 2023. The internal mammary artery(IMA) was harvested using the skeletonized technique with the assistance of the robotic system. Then, graft-to-target vessel anastomoses were performed via a 4-6 cm left fifth intercostal thoracotomy. Coronary angiography or coronary CTA was routinely performed before discharge.Results:149 patients(59.1%) underwent multi-vessel coronary bypass. 140 patients(55.6%) underwent total arterial bypass grafting, with 131 patients(52.0%) undergoing RACAB with in situ bilateral IMA. IMA harvesting failed in 6 patients(1.6%). One patient(0.4%) was assisted by extracorporeal circulation, and 5 patients(2.0%) underwent re-thoracotomy postoperatively. The patency rate of grafts was 96.6%(449/465). The 12-month and 24-month survival rate were 97.8% and 96.5% respectively; The 12-month and 24-month MACCE-free survival rate were 95.2% and 92.6%, respectively.Conclusion:RACAB is safe and feasible. With the assistance of the robotic system, in situ bilateral IMA can be obtained and bypassed to all target vessels territory. Extended follow-up is warranted.

Objective:To analyze the safety and efficacy of multi-vessel minimally invasive cardiac surgery-coronary artery bypass graft(MICS-CABG) through perioperative angiography results and complications.Methods:Clinical data of 1 073 patients who underwent multi-vessel MICS-CABG surgery at Peking University Third Hospital from December 2015 to June 2024 were collected using an ambispective cohort study. Among them, 745 were males(69.4%), with a median age of 65 years(58, 71), and a median ejection fraction of 0.66(0.56, 0.71). Double-vessel or triple-vessel lesions accounted for 932 cases(86.9%), while left main lesions were present in 449 cases(41.8%). The primary outcome was the evaluation of graft patency based on perioperative angiography or coronary artery computed tomography angiography results, while major cardiovascular adverse events during the perioperative period, surgical complications, and other surgical information were secondary outcomes. The clinical efficacy of multi-vessel MICS-CABG was evaluated.Results:In this study, the median number of grafts was 3, and complete revascularization was performed in 1 006 cases(93.8%); total arterial revascularization was performed in 308 cases(28.6%). Perioperative mortality was 11 cases(1.0%), and the main adverse cardiovascular and cerebrovascular events(MACCE) was 50 cases(4.8%). Three cases(0.3%) had poor wound healing, and 79 patients(7.4%) required transfusion. Postoperative coronary angiography was performed in 907 patients(84.5%) and coronary CTA was performed in 52 patients(4.8%), for an overall review rate of 89.4%(959/1073). The overall patency rate of the bridge vessel was 96.9%, and the patency rate of the left internal mammary artery was 98.2%.Conclusion:Multi-vessel MICS-CABG demonstrates excellent perioperative safety and is capable of achieving complete revascularization for the 3 regions of the heart. The quality of the anastomosis and the postoperative patency rate of the grafts is satisfactory.

Objective:To evaluate the safety and effectiveness of robot-assisted coronary artery bypass(RACAB).Methods:We retrospectively analyzed the clinical outcomes from 252 consecutive patients who underwent RACAB in our center between April 2021 and August 2023. The internal mammary artery(IMA) was harvested using the skeletonized technique with the assistance of the robotic system. Then, graft-to-target vessel anastomoses were performed via a 4-6 cm left fifth intercostal thoracotomy. Coronary angiography or coronary CTA was routinely performed before discharge.Results:149 patients(59.1%) underwent multi-vessel coronary bypass. 140 patients(55.6%) underwent total arterial bypass grafting, with 131 patients(52.0%) undergoing RACAB with in situ bilateral IMA. IMA harvesting failed in 6 patients(1.6%). One patient(0.4%) was assisted by extracorporeal circulation, and 5 patients(2.0%) underwent re-thoracotomy postoperatively. The patency rate of grafts was 96.6%(449/465). The 12-month and 24-month survival rate were 97.8% and 96.5% respectively; The 12-month and 24-month MACCE-free survival rate were 95.2% and 92.6%, respectively.Conclusion:RACAB is safe and feasible. With the assistance of the robotic system, in situ bilateral IMA can be obtained and bypassed to all target vessels territory. Extended follow-up is warranted.

Objective:To analyze the safety and efficacy of multi-vessel minimally invasive cardiac surgery-coronary artery bypass graft(MICS-CABG) through perioperative angiography results and complications.Methods:Clinical data of 1 073 patients who underwent multi-vessel MICS-CABG surgery at Peking University Third Hospital from December 2015 to June 2024 were collected using an ambispective cohort study. Among them, 745 were males(69.4%), with a median age of 65 years(58, 71), and a median ejection fraction of 0.66(0.56, 0.71). Double-vessel or triple-vessel lesions accounted for 932 cases(86.9%), while left main lesions were present in 449 cases(41.8%). The primary outcome was the evaluation of graft patency based on perioperative angiography or coronary artery computed tomography angiography results, while major cardiovascular adverse events during the perioperative period, surgical complications, and other surgical information were secondary outcomes. The clinical efficacy of multi-vessel MICS-CABG was evaluated.Results:In this study, the median number of grafts was 3, and complete revascularization was performed in 1 006 cases(93.8%); total arterial revascularization was performed in 308 cases(28.6%). Perioperative mortality was 11 cases(1.0%), and the main adverse cardiovascular and cerebrovascular events(MACCE) was 50 cases(4.8%). Three cases(0.3%) had poor wound healing, and 79 patients(7.4%) required transfusion. Postoperative coronary angiography was performed in 907 patients(84.5%) and coronary CTA was performed in 52 patients(4.8%), for an overall review rate of 89.4%(959/1073). The overall patency rate of the bridge vessel was 96.9%, and the patency rate of the left internal mammary artery was 98.2%.Conclusion:Multi-vessel MICS-CABG demonstrates excellent perioperative safety and is capable of achieving complete revascularization for the 3 regions of the heart. The quality of the anastomosis and the postoperative patency rate of the grafts is satisfactory.

Objective:To explore the safety and effectiveness of axillary-coronary artery bypass (ACAB) of anterolateral incision multi-vessel coronary artery bypass surgery (MICS-CABG).Methods:Patients who underwent coronary artery bypass surgery in Peking University Third Hospital from May 2020 to December 2022 were included. 48 and 158 patients were included in MICS-ACAB and OPCABG group respectively. The mean age of the OPCABG group was (64.72±8.27) years old, and the male proportion was 77.2%(122 cases). The mean age of the MICS-ACAB group was (71.42±7.77) years old, and the male proportion was 79.2%(38 cases). Major adverse cardiovascular and cerebrovascular events (MACCE, including stroke, death, myocardial infarction and revascularization) and postoperative PCS scores of SF-36 were selected as the primary endpoint. The surgical complications and angiography patency rate of grafts were recorded to evaluate the clinical effects of MICS-ACAB.Results:The median number of bypass graft in two groups was 3. There were no significant differences in perioperative MACCE, re-operation rate, renal failure and lenth of postoperative hospital stay between two groups( P>0.05). 85.4% of patients reveived angiography assessment before discharge. There was no significant difference in graft patency between the MICS-ACAB group and OPCABG group (95.2% vs 88.8%, P=0.368). The results of propensity score matching analysis were consistent with the above conclusions. Both univariate analysis and multiple linear regression showed that MICS-ACAB could improve the PCS score of SF-36 at 7 days after surgery[(31.77±5.97) scores vs. (29.45±6.31) scores, P=0.025]. Conclusion:The safety of MICS-ACAB is satisfactory, which can achieve the completely revascularization and the patency rate of grafts is desirable. This procedure can significantly improve quality of life of patients in early postoperative period.

OBJECTIVE:To compare the preventive effects and safety of aspirin and clopodogrel respectively used for vascular restenosis after coronary intimal striping with coronary artery bypass grafting. METHODS:110 patients with coronary atherosclerot-ic heart disease were divided into aspirin group (55 cases) and clopodogrel group (55 cases). All patients intravenously mi-cro-pumped Nitroglycerin injection 10 mg+5% Glucose injection totally 20 mL for maintaining 48-72 h after coronary intimal strip-ing with coronary artery bypass grafting,intravenously pumped Dopamine hydrochloride injection 1-5 μg/kg if necessary. Unplug the endotracheal tube after surgery,patients received Cefuroxime sodium for injection 1.5 g adding into Sterile water for injection 50 mL,intravenous injection,3 times a day,for 2-3 d. Meanwhile,patients were orally given Rosuvastatin calcium tablet 10 mg 30 min after daily dinner,8-week was a course,for 3 courses. Based on it,aspirin group received Aspirin enteric-coated tablet with initial dose of 300 mg,once a day,orally taking 100 mg from the second day,once a day,for 6 months;clopodogrel group received Clopidogrel hydrogen sulfate tablet with initial dose of 300 mg,once a day,orally taking 75 mg from the second day, once a day,for 6 months. Graft patency rate,and platelet aggregation rate,platelet aggregation compliance rate,fibrinogen(Fg), D-dimer (D-D),platelet count (PLT),tissue-type plasminogen activator (t-PA) before and after treatment,and the incidence of adverse reactions in 2 groups were observed. RESULTS:There were no significant differences in the graft patency rate and inci-dence of adverse reactions in 2 groups (P>0.05). Before treatment,there were no significant differences in platelet aggregation rate,platelet aggregation compliance rate,Fg,D-D,PLT and t-PA in 2 groups (P>0.05). After treatment,platelet aggregation rate,Fg and D-D level in 2 groups were significantly lower than before,platelet aggregation compliance rate,PLT and t-PA level were significantly higher than before,with statistical significance(P<0.05),while there were no significant differences between 2 groups(P>0.05). CONCLUSIONS:Based on conventional treatment,both aspirin and clopidogrel used for coronary intimal strip-ing with coronary artery bypass grafting can inhibit platelet aggregation,reduce thrombosis,maintain vascular patency and prevent vascular restenosis,with good safety.

Objective:To analyze the implementation and effectiveness of primary health care reform in Feixi county, Anhui province. Methods: This paper uses data analysis of interviews with key insiders, policy documents and archives, as well as institutional questionnaire survey and other methods to collect information, and then it com-bines qualitative and quantitative research to arrive at research findings through cross-analysis and interpretation. Re-sults:From 2010 to 2014, the reform enhanced the capacity of primary health care in four main aspects, including capacity building of primary health care personnel, network construction of primary health care system, improvement of working conditions, and system construction of institutional management. Accordingly, the human capacity of pri-mary health care personnel was improved, their enthusiasm for work increased, their income was raised, the working conditions were improved, the cooperation mechanism for vertical and horizontal health care services was established, and the consultation rate and primary health care utilization in Feixi county increased. Conclusion:Both the“bottom-up” exploration approach and “from point to area” implementation strategy adopted by Feixi county have not only been the core content of primary health care system’s comprehensive reform, but also effectively leveraged the other aspects of the reform. They have played an important role in deepening medical reform and establishing institutional mechanism of health care system.

Objective:The paper aims to explore the structure and effectiveness of three health service systems in Anhui province and provide policy recommendations to promote the integration of health care systems. Methods:By using typical sampling method, this paper conducts case study analysis of health service system in Ma’anshan, Feidong and Feixi county of Anhui province. The data mainly come from questionnaires for the institutions, doctors and patients, as well as from interviews with key informants. By integrating quantitative and qualitative data analysis, this paper uses social network analysis method to analyze the system structure and its degree of integration. Results:The degree of integration of health service structure in Ma’anshan is the highest, followed by Feixi, and Feidong is the lowest. The system effectiveness is same as the degree of integration. All three health service systems have advantages and disadvantages regarding to system integration. Conclusion:The effectiveness of health service system integration and its implementation is the product of combined effects of internal and external environment of each health service system. The reforms in Ma’anshan and Feixi health service systems have not only integrated health care structures, but also had a positive impact on the effectiveness of the health service systems.

Objective:To analyze reverse effects induced in the implementation process of“primary health care strengthening” policies, and the innovative initiatives and countermeasures raised in primary health care system’s comprehensive reform of Feixi county. Method:Based on the principles of Critical Discourse Analysis ( CDA) , this paper designs its analytical framework for policy analysis. Results:Many reverse effects appeared in the implementa-tion process of “primary health care strengthening” policies. However, through improvements in terms of manpower upgrading, network building, working conditions and management mechanisms, Feixi county has successfully strengthened the capacity building for primary health care institutions. Conclusions:The expected and unexpected re-sults should be evaluated systematically when the policies are being implemented, and local governments need to pro-ceed according to local conditions in order to prevent unintended reverse effects from happening.

The fragmentation of health care system within a county and serious capacity constraints of health-care services in township health centers are generally the most significant problems facing underdeveloped counties in western China. Under constraints of limited public financial resources, how to increase service capability of township health centers and improve service quality, continuity and convenience of health care system has become one of the most severe challenges in implementing China’s county health care system reform. This paper takes Huangzhong coun-ty, Qinghai province as a case study. It investigates how the locals use health care alliance to vertically integrate county health care resources during reform implementation, analyzes various aspects of reform measures and the corre-sponding structural characteristics such as the integration of administrative management, integration of human re-sources, dual diagnosis referral, interoperability of information systems, sharing of resources and test results, etc. , and provides similar China’s counties with a case study to be used for reference.