Objective To investigate the treatment and prognosis of moderate ischemic mitral regurgitation (IMR) in coronary artery disease(CAD). Methods From January 1998 to May 2006, 28 patients of CAD with moderate IMR underwent coronary artery bypass grafting (CABG) and mitral valve plasty(MVP, 24) or mitral valve replacement (MVR,4). The Reed method were used in 9 cases, the annuloplasty ring were used in 15 cases. Mechanical valve were implanted in 1 case and biological valve in 3 cases. Results There was no operative or hospital death. Twentysix patients were followed up to a mean period of 41 months. There were two late death(one was MVP, the other was MVR). In MVP cases, nineteen patients were in New York Heart Association (NYHA) functional class Ⅰ and Ⅱ, 3 in class Ⅲ, which was better than that of preoperative one. Ultrasonic cardiography (UCG) examination showed no mitral regurgitation in 5 cases, mild in 7, light in 6, moderate in 3, severe in 1. Left atrial volume (LAV) and left ventricular enddiastolic volume (LVEDV) were 54.1±12.7ml and 60.9±14.8 ml, decreased more significantly than that preoperatively (Plt;0.05). In MVR cases, 2 cases were survival and followed. One patient was in NYHA functional class Ⅰ, 1 in class Ⅱ, which was better than that of preoperative one. Conclusion Moderate IMR with CAD should be treated carefully. MVP with annuloplasty ring have better early results. For patients with bad heart function and abnormal left ventricular wall motion, the late results need more studies.
Objective To investigate the effect of alltrans retinoic acid (atRA) on proliferative artery disease after heart transplantation. Methods Heterotopic heart transplantation model was established by Ono model with 16 inbred healthy male Wistar rats as donors and 16 SD rats as recipients. The rats were divided into chronic rejection group and atRAtreated group by complete random design, and there were 8 rats in each group. Rats in chronic rejection group were given Cyclosporine A 10 mg/(kg·d) by subcutaneous injection after operation, and those in atRAtreated group were given Cyclosporine A 10 mg/(kg·d) in the same way and atRA 10mg/(kg·d) by gavage. The transplanted hearts of rats were taken out 60 days after the transplantation. HE stain, masson stain and Van Gieson were done to analyze the rejection of transplanted hearts, the degree of vascular stenosis and myocardial fibrosis respectively.Immunohistochemistry was used to test proliferating cell nuclear antigen (PCNA). Results The area of myocardial fibrosis in chronic rejection group was obviously larger than that in atRAtreated group（63.99%±11.91% vs.34.68%±6.34%）, and there was significant difference between two groups（t=8.377，P=0.000）. The index of vascular stenosis in chronic rejection group was higher than that in atRAtreated group（62.86±17.18 vs. 40.10±8.20）. Vascular stenosis in atRAtreated group alleviated significantly, and there was significant difference between two groups（t=3.913, P=0.006）. The PCNA positive cells in chronic rejection group were obviously more than that in atRAtreated group（60.17±17.74 vs. 33.96±8.65）, and there was significant difference between two groups（t=5.387, P≤0.001）. There was a positive correlation between the PCNA positive cell ratio and the index of vascular stenosis（r=0.854, P=0.007）. Conclusion Alltrans retinoic acid can inhibit vascular disease after heart transplantation by cell proliferative pathway.
ObjectiveTo investigate the technique and efficacy of left atrial appendage (LAA) occlusion during off-pump coronary artery bypass grafting (OPCABG) in elderly patients with coronary artery disease (CAD) and atrial fibrillation (AF).MethodsFrom 2013 to 2018, 84 elderly patients with CAD and AF with reduced left ventricular ejection fraction (LVEF< 50%) underwent OPCABG in our department. There were 54 males and 30 females at age of 70-82 years. They were divided into a left atrial appendage (LAA) occlusion group (n=56) and a non-LAA occlusion group (n=28). Postoperative antithrombotic therapy: the LAA occlusion group was given warfarin + aspirin + clopidogrel “triple antithrombotic therapy” for 3 months after operation, then was changed to aspirin + clopidogrel “dual antiplatelet” for long-term antithrombotic; the non-LAA occlusion group was given warfarin + aspirin + clopidogrel “triple antithrombotic” for long-term antithrombotic after operation. The clinical effectiveness of the two groups was compared.ResultsAll patients underwent the surgery successfully. There were 56 patients in the LAA occlusion group, including 44 patients of LAA exclusion and 12 patients of LAA clip. The time of LAA occlusion was 3 to 8 minutes. There was no injury of graft vessels and anastomotic stoma. Early postoperative death occurred in 2 patients (2.4%). There was no statistical difference between the two groups in postoperative hospital stay (P=0.115). Postoperative LVEF of the two groups significantly improved compared with that before operation (P<0.05). There was no stroke or bleeding in important organs during hospitalization. During follow-up of 1 year, no cerebral infarction occurred in both groups, but the incidence of bleeding related complications in the LAA occlusion group was significantly lower than that in the non-LAA occlusion group (3.6% vs. 18.5%, P=0.036).ConclusionFor elderly patients with CAD and AF with reduced LVEF, LAA occlusion during OPCABG can effectively reduce the risk of stroke and bleeding related complications, and without increasing the risk of surgery.
Objective To retrospectively review the clinical experience and early surgical results of combined cardiac valve surgery and coronary artery bypass grafting （CABG）. Methods From Jan. 2000 to Dec. 2005, combined valve surgery and CABG was performed in 81 patients. 37 patients were rheumatic heart disease with coronary stenosis, and 44 patients were coronary artery disease with valvular dysfunction. Single vessel disease was in 18 patients, two vessels disease in 9 and triple-vessel disease in 54. All the patients received sternotomy and combined valve surgery and CABG under cardiopulmonary bypass. Mitral valve repair and CABG were done in 26 patients. Valve replacement and CABG were done in 55 patients with 49 mechanical valves and 16 tissue valves. Four patients had left ventricular aneurysm resection concomitantly. The number of distal anastomosis was 3.12 5= 1.51 with 66 left internal mammary arteries bypassed to left anterior descending. Post-operative intra-aortic balloon pump was required in 4 cases for low cardiac output syndrome. Results Two patients died of low cardiac output syndrome with multiple organs failure. 79 patients had smooth recovery and discharged from hospital with improved heart function. 64 patients had completed follow-up with 5 late non cardiac related death in a mean follow-up period of 14.2 months. Conclusion Combined one stage valve surgery and CABG is effective with acceptable morbidity and mortality.
ObjectiveTo explore the incidence of total occlusion of right coronary artery (RCA)and its treatment strategy during off-pump coronary artery bypass grafting (OPCAB). MethodsA total of 1 153 patients with total RCA occlusion were chosen from 6 206 patients who underwent OPCAB in Beijing Anzhen Hospital from January 1, 2005 to December 31, 2012. There were 889 male (77.1%)and 264 female (22.9%)patients with their age of 45-78 years. The incidence of total RCA occlusion was calculated, and its treatment strategies were discussed. ResultsAmong 6 206 OPCAB patients, 1 153 patients (18.6%)had total RCA occlusion. All the 1 153 patients successfully received OPCAB, but 13 patients (1.1%)died postoperatively. Thirty-four patients (2.9%)had postoperative complications including cerebral infarction, mild to moderate pleural effusion and poor wound healing, all of whom were cured or improved, and all the other patients were discharged uneventfully. A total of 1 110 patients (97.4%)were followed up for 1 month to 7 years, and 30 patients were lost during follow-up. Angina symptoms disappeared in 758 patients and were relieved in 352 patients. During follow-up, 64-row helical CT of 586 patients with preoperative total RCA occlusion showed good graft patency, and echocardiography and nuclear myocardial scan showed improved left ventricular systolic function and myocardial blood flow. ConclusionThe incidence of total RCA occlusion is 18.6% in our study. Appropriate surgical strategies are needed according to individualized patient conditions to get satisfactory clinical outcomes.
Objective To evaluate the efficacy of normalization management on prognosis in elderly patients with coronary artery disease, in aspects of drug compliance, readmission rate and quality of life. Methods A total of 110 patients above 65 years old with coronary artery disease visiting West China Hospital from August 2010 to February 2011 were investigated. The patients were divided into two groups: the intensive management group (n=55) and the general management group (n=55). The measures such as regular follow-up, regular examination and medical education were conducted in the intensive management group, and the two groups were observed in aspects of drug compliance, readmission rate and quality of life. Results After 1-year follow-up, the percentages of patients taking aspirin/clopidogrel (98.18% vs. 67.27%, Plt;0.05), nitrate (85.45% vs. 40.00%, Plt;0.05), ACEI/ARB (56.36% vs. 18.18%, Plt;0.05), β receptor blocker (58.18% vs. 29.09%, Plt;0.05) and statin (94.55% vs. 32.73%, Plt;0.05) were higher in the intensive management group than those in the general management group. Also, the readmission rate was lower (12.73% vs. 41.42%, Plt;0.05) and the score of quality of life was higher in the intensive management group than that in the general management group. Conclusion The normalization management guided by evidence-based medicine for the elderly patients with coronary artery disease is helpful to improve the drug compliance, reduce the readmission rate, and improve the quality of life.
Objective To investigate the role of red cell distribution width ( RDW) in coronary artery diseases patients complicated with obstructive sleep apnea-hypopnea syndrome ( OSAHS) . Methods 134 coronary artery diseases patients who had at least one-vessel disease confirmed by coronary angiography were investigated by polysomnography for OSAHS. The patients were classified according to theapneahypopnea index(AHI) . The level of RDW, triglyceride, cholesterol, high density lipoprotein, low density lipoprotein, hemoglobin, white blood cells and hematocritwere measured. The receiver operating characteristic curve was drawn to predict the moderate-severe OSAHS in coronary artery diseases patients according to RDW value. Results When 134 coronary artery diseases patients were classified into a control group and an OSAHS group according to the AHI, the level of RDW in two groups was not significantly different [ ( 13.44 ±1.30) % vs. ( 13.12 ±0.92) % , P gt; 0.05] . When 134 coronary artery diseases patients were classified into a control and mild OSAHS group and a moderate-severe OSAHS group according to the AHI, the level of RDW in two groups was significantly different [ ( 13.07 ±0.94) vs. ( 14.02 ±1.41) % , P lt; 0.05] . And no difference was found in hemoglobin, triglyceride, cholesterol, high density lipoprotein, low density lipoprotein, platelet, and hematocrit between two groups. The ROC curve analysis revealed that the area under ROC curve was 0.748 ( 0.523-0.972) , and the best cut-off for moderate-severe OSAHS was 13.95% with sensitivity of 71.43% and specificity of 82.98% . Conclusion RDW may be a useful and simple tool to predict moderate-severe OSAHS in coronary artery diseases patients.
Objective To systematically review the impact of cardiac shock waves on coronary artery disease. Methods The PubMed, Cochrane Library, Wed of Science, EMbase, ClinicalTrials.gov, CNKI, WanFang Data, VIP and CBM databases were electronically searched to collect randomized controlled trials and cohort studies related to the treatment of coronary artery disease with cardiac shock waves from inception to August 2022. After two evaluators independently screened the literature, extracted data, and evaluated the risk of bias of the included studies, a meta-analysis was conducted by using RevMan 5.4.1 and Stata 15.0 software. Results A total of 11 studies with 519 patients were included. The meta-analysis results revealed that compared with the control group, cardiac shock wave therapy could reduce hospitalization rates (RR=0.38, 95%CI 0.25 to 0.57, P<0.01), increase exercise time (SMD=0.93, 95%CI 0.17 to 1.70, P=0.02), and improve the Canadian Cardiovascular Society (CCS) angina grading (MD=−0.62, 95%CI −0.73 to −0.51, P<0.01), the New York Heart Association (NYHA) cardiac function grading (MD=−0.60, 95%CI −0.85 to −0.35, P<0.01), left ventricular ejection fraction (MD=4.81,95%CI 3.17 to 6.46, P<0.01), total score of the Seattle angina questionnaire (SAQ) (MD=10.87, 95%CI 4.63 to 17.12, P<0.01), and 6-min walking test (MD=85.06, 95%CI 31.02 to 139.09, P<0.01). Conclusion Cardiac shock wave therapy can improve cardiac function as well as the prognosis and exercise ability. Due to the limited quantity and quality of the included studies, more high-quality studies are needed to verify the above conclusion.
Objective To study the technical characteristics, clinical outcomes and short- and long-term results of minimally invasive multi-vessel coronary artery bypass grafting and to evaluate the feasibility and efficacy. Methods From April 2012 to December 2014, minimally invasive cardiac surgery for coronary artery bypass grafting (MICS CABG) in 11 patients was performed in the First Hospital of China Medical University. All patients were males and the average age was 62.7 (47.0-73.0) years. Eight patients with 3-vessel lesions and 3 patients with 2-vessel lesions. General anesthesia was performed with double lumen endotracheal intubation and single lung ventilation. The patient was positioned 15 degrees to 30 degrees in right lateral position. The left anterior and lateral incision was made at the fourth/fifth intercostal space with the length of 5-7 cm and 2/3 part of the incision located in the medial side of anterior axillary line. Left internal thoracic artery (LIMA) was harvested from the third intercostal space up to the subclavian vein and down to more than fifth intercostal space through the surgical window. Through the xiphoid and sixth intercostal space incision with the length of 1 cm, the Starfish and Octopus system were placed to fix apex and ascending aorta and target vessels were exposed. The proximal and distal anastomosis was done under the direct vision. The sequence of distal anastomosis was from posterior descending branch to obtuse/diagonal branch and left anterior descending branch. The chest and pericardial draining tubes were placed through the xiphoid and sixth intercostal space incision. Results The mean operation time was 4.1 (3.2–5.8) h. Five patients underwent the operation with the assist of cardiopulmonary bypass and the mean assisting time was 21.0 (17.0-38.0 ) min. The mean number of distal anastomosis was 2.8 (2.0-3.0) and LIMA was harvested and grafted in all 11 patients. The mean drainage was 425.0 (180.0-750.0) ml, mean ventilation time 7.8 (4.3-11.2) h, ICU stay 15.9 (11.0-38.0) h, and hospital time 7.7 (5.0-14.0) d. There was no operative death and re-exploration for bleeding. One patient was complicated by paroxysmal atrial fibrillation and one patient myocardial infarction. The average follow-up was 19.4 (12.0-36.0) months, and no chest pain, re-admission or re-intervention happened. Coronary artery CT angiographies demonstrated that all LIMAs were patent and 4 vein grafts were occluded and venous graft patency rate was 80.0% one year after surgery. Conclusion MICS CABG has the advantage of quick recovery, good cosmetic effect and low incision infection rate compared to the conventional CABG. Compared with robotic surgery, the cost of MICS CABG is low and the same as that of the conventional CABG. It is a new kind of CABG and could be performed following the learning curve under strict training of doctors and careful patient selection. With the good short- and middle-term results, MICS CABG needs to be evaluated for long-term graft patency rate, re-revascularization rate, and clinical evidence.
Objective To evaluate the efficacy of statins pretreatment in patients before percutaneous coronary intervention (PCI). Methods Published literature on relevant randomized controlled trials (RCTs) were retrieved via electronic and handsearch in databases CNKI, CBM, MEDLINE and The Cochrane Library from January 1990 to May 2011. The references of these articles were also retrieved. Two reviewers independently identified articles according to the inclusion and exclusion criteria, extracted the data, assess the quality of the included studies, and then conducted meta-analysis using RevMan 5.0 software. Results A total of 10 trials involving 3 012 patients were included. The results of meta-analyses showed that: during the periprocedural period, the trial group had a lower incidence than the control group (98 of 1 514 cases, incidence 6.5%) in periprocedural myocardial infarction with a significant difference (OR=0.43, 95% CI 0.34 to 0.56, Plt;0.000 01). The composite of death, myocardial infarction, or target vessel revascularization in one month, essentially driven by periprocedural myocardial infarction, was reported 6.8% in the trial group and 15.1% in the control group (OR=0.41, 95% CI 0.32 to 0.53, Plt;0.000 01). Conclusion Current evidence supports the effectiveness of statin pretreatment used to reducing the rate of periprocedural myocardial infarction in patients before receiving PCI.