west china medical publishers
Keyword
  • Title
  • Author
  • Keyword
  • Abstract
Advance search
Advance search

Search

find Keyword "动脉粥样硬化" 112 results
  • Analyzing facial photo to detect coronary artery disease: Artificial intelligence opens a new era of disease screening

    Coronary heart disease is the second leading cause of death worldwide. As a preventable and treatable chronic disease, early screening is of great importance for disease control. However, previous screening tools relied on physician assistance, thus cannot be used on a large scale. Many facial features have been reported to be associated with coronary heart disease and may be useful for screening. However, these facial features have limitations such as fewer types, irregular definitions and poor repeatability of manual judgment, so they can not be routinely applied in clinical practice. With the development of artificial intelligence, it is possible to integrate facial features to predict diseases. A recent study published in the European Heart Journal showed that coronary heart disease can be predicted using artificial intelligence based on facial photos. Although this work still has some limitations, this novel technology will be promise for improving disease screening and diagnosis in the future.

    Release date:2020-12-07 01:26 Export PDF Favorites Scan
  • Comparison of total arterialized coronary artery bypass grafting and left internal mammary artery plus saphenous vein bypass grafting in three-vessel coronary heart disease patients with diabetes

    ObjectiveTo evaluate the perioperative, short- and mid-term results of total artery bypass grafting and saphenous vein bypass grafting in three-vessel coronary heart disease patients complicated with diabetes.MethodsRetrospective analysis was performed on 46 patients (a TAR group) including 36 males and 10 females with an average age of 65.1±11.3 years who underwent total artery bypass grafting in Renji Hospital affiliated to Shanghai Jiao Tong University Medical College from 2005 to 2014. A total of 46 patients with age and gender matched admitted during the same period were selected as a control group (NCR group), in which left internal mammary artery and great saphenous vein were used as grafting vessels. Preoperative, perioperative, and postoperative (1 year and 5 years) data of the two groups were analyzed.ResultsIn terms of perioperative data, the TAR group was inferior to the NCR group in operation time, postoperative 24 h drainage volume and postoperative 24 h blood transfusion volume. However, there was no difference between the two groups in terms of perioperative mortality, ICU stay, etc. One year after surgery, there was no difference in angina pectoris recurrence, recurrent myocardial infarction or grafting vessel patency rate between the two groups. Five years after the operation, the TAR group was superior to the NCR group in angina recurrence, myocardial infarction, and grafting vessels patency rate.ConclusionFor patients with three-vessel coronary heart disease complicated with diabetes, total arterial bypass grafting can achieve better mid-term effect, although it can prolong the operation time and increase the amount of drainage and blood transfusion 24 h after operation.

    Release date: Export PDF Favorites Scan
  • ANATOMY AND CLINICAL APPLICATION OF BYPASS CIRCUIT OUTFLOW TRACT OF ARTERIAL SCLEROSISOBSTRUCTION

    To evaluate the possibil ity of collateral outflow tract of arterial sclerosis obstruction (ASO)and the prospect of cl inical appl ication. Methods The red emulsion was infused into the arteries of the above knee amputation of 10 fresh specimens. Then the pathological changes of the anterior tibial artery, posterior tibial artery and the popl iteal artery, and the contribution of these bole artery branch were observed. From September 2005 to April 2007, 5 patients with ASO were treated, unilateral lower l imb was involved in all cases. There were 3 males and 2 females, aged 68-81 years. The arteriography and Color Doppler ultrasound of lower l imbs showed that the femoral artery and the popl itealartery and the branches had no development. The exploratory operation on the popl iteal artery and the branches was carried out. Results The walls of the anterior tibial artery, posterior tibial artery, and the popl iteal artery were stiff and the lumens were filled with atheromatous plaque. The sural arteries opening to the bole artery was frequent. The collateral circulation at the knee perimeter was raritas rather affluent at the muscle group. All of the operations were successful, the skin temperature increased gradually after operation, and the degrees of blood oxygen saturation increased to 90%-100% at 6 hours from 0 before operation . After a follow-up of 3 to 12 months, the symptom improved obviously, rest pain disappeared, lower l imb ulcer healed. The Color Doppler ultrasound showed that most of the blood flow at the anastomotic stoma ejected into bypass circuit, and the blood flow at the distally posterior tibial artery and anterior tibial artery was l ittle. Conclusion The collateral outflow tract construction is feasible, it is an effective path after cl inical verification to solve the advanced stage ASO

    Release date:2016-09-01 09:12 Export PDF Favorites Scan
  • Relationship between myocardial viability and early application of intra-aortic balloon pump after coronary artery bypass grafting

    ObjectiveTo explore the relationship between myocardial viability in patients with coronary artery disease who underwent elective coronary artery bypass grafting (CABG) and early application of intra-aortic balloon pump (IABP) after coronary revascularization, and to provide relevant clinical reference for the pre-implantation of 16G single-lumen catheter in the femoral artery of high-risk patients to facilitate the addition of IABP after operation.MethodsThis retrospective study included 521 patients (414 males and 107 females, aged 62.50±8.82 years) who underwent positron emission tomography (PET)-computed tomography (CT) perfusion-metabolism imaging prior to CABG surgery in our institution from December 2015 to August 2020. The myocardial viability information and left ventricular functional parameters were measured, including the proportion of non-viable myocardium (perfusion-metabolic imaging match), hibernating myocardium (perfusion-metabolic imaging mismatch) and dysfunctional myocardium (non-viable+viable myocardium), left ventricular ejection fraction, left ventricular end-diastolic volume and left ventricular end-systolic volume (LVESV). The patients were divided into an IABP group and a non-IABP group according to whether they received IABP treatment after revascularization. The clinical data were reviewed and compared to explore significant impact factors between the two groups. And the multivariate logistic regression analysis was performed to investigate the correlation between preoperative myocardial viability and early use of IABP after CABG.ResultsIn multivariate logistic regression analysis, the amount of non-viable, dysfunctional myocardium and LVESV value were identified as the independent predictors for the probability of IABP use in the initial postoperative period. Receiver operating characteristic analysis showed that 9.5% non-viable myocardium, 19.5% dysfunctional myocardium, and LVESV of 114.5 mL were the optimal cutoff for predicting early IABP implantation during CABG.ConclusionThe myocardial survival status displayed by preoperative PET-CT myocardial perfusion-metabolism imaging can predict the possibility of applying IABP in CABG perioperative period. In addition to routine pre-anesthesia assessment, anesthesiologists can conduct risk stratification assessment for patients with CABG according to the results of preoperative myocardial viability imaging, which is of great significance to ensure the perioperative safety of high-risk patients with CABG.

    Release date:2023-03-01 04:15 Export PDF Favorites Scan
  • 主动脉内球囊反搏在冠状动脉旁路移植术中的应用

    目的 为提高冠状动脉旁路移植术(CABG)的手术疗效, 总结CABG围手术期主动脉内球囊反搏(IABP)应用的临床经验. 方法 回顾性分析46例CABG围手术期行IABP患者的临床资料及IABP放置的原因、时间和预后. 结果 34例康复出院,住院死亡12例,主要死亡原因:低心排血量综合征、肺部感染、多器官功能衰竭等.平均IABP辅助时间28.6±18.2小时.IABP能使平均动脉压升高,心排血量增加,有助于心脏功能差的患者脱离体外循环和改善心脏不停跳冠状动脉旁路移植术(OPCAB)中心脏对稳定器压迫的耐受性. 结论 IABP是一种简单有效的循环辅助手段,心功能差的高危CABG患者应及时放置IABP.放置IABP前应查明下肢血管情况,避免血管损伤.

    Release date:2016-08-30 06:30 Export PDF Favorites Scan
  • Simiao Yong'an decoction for the treatment of atherosclerosis in animal experiment: a systematic review

    ObjectiveTo systematically review the interventional effects of Simiao Yong'an decoction on atherosclerosis animal models.MethodsDatabase including CNKI, WanFang Data, VIP, PubMed, The Cochrane Library, and Web of Science were searched to collect animal experiments on atherosclerosis model intervention by Simiao Yong’an decoction from inception to October 2020. Two reviewers independently screened the literature, extracted data, and used the SYRCLE animal experiment bias risk assessment tool to evaluate risk bias of included studies, and then used RevMan 5.4.1 software for meta-analysis.ResultsA total of 14 animal experiments were included. The results of meta-analysis showed that compared with the blank model group, the Simiao Yong’an decoction group could reduce the aortic plaque area (SMD=−2.04, 95%CI −3.35 to −0.74), the ratio of aortic plaque to lumen area (SMD=−1.72, 95%CI −2.48 to −0.97), total cholesterol level (SMD=−0.97, 95 %CI −1.72 to −0.22), triglyceride level (SMD=−1.21, 95%CI −1.82 to −0.60), low-density lipoprotein cholesterol level (SMD=−1.82, 95%CI −3.12 to −1.53), tumor necrosis factor-α level (SMD=−3.36, 95%CI −4.21 to −2.52), monocyte chemotactic factor-1 level (SMD=−2.98, 95%CI −4.60 to −1.35) and C-reactive protein level (SMD=−0.60, 95%CI −1.08 to −0.11); however, in the high-density lipoprotein cholesterol level (SMD=0.66, 95%CI −0.10 to 1.42) and the level of interleukin 1 (SMD=−1.41, 95%CI −4.11 to 1.30), the differences were not statistically significant.ConclusionsThe existing evidence shows that the intervention of Simiao Yong’an decoction in the atherosclerosis model can reduce the aortic plaque area and the ratio of the aortic plaque to the lumen area, reduce total cholesterol, triglycerides, and low-density lipoprotein cholesterol levels, and reduce tumor necrosis factor-α, monocyte chemotactic factor-1, and C-reactive protein levels. Due to limited quality of included studies, more high quality studies are required to verify the above conclusions.

    Release date:2021-06-18 02:04 Export PDF Favorites Scan
  • One-stop carotid endarterectomy and off-pump coronary artery bypass grafting for patients with coronary artery disease and carotid artery stenosis

    ObjectiveTo analyze the efficacy of one-stop carotid endarterectomy (CEA) and off-pump coronary artery bypass grafting (OPCABG) for patients with coronary artery disease (CAD) combined with carotid artery stenosis. MethodsThe clinical data of patients with CAD and severe carotid artery stenosis who underwent one-stop CEA and OPCABG in our department from March 2018 to June 2021 were retrospectively analyzed. Before the surgery, all patients routinely underwent coronary and carotid angiography to diagnose CAD and carotid artery stenosis. All patients underwent CEA first and then OPCABG in the simultaneous procedure. ResultsA total of 12 patients were enrolled, including 9 males and 3 females, aged 58-69 (63.7±3.4) years. All patients had unilateral severe carotid artery stenosis, and the degree of stenosis was 70%-90%. The lesions of carotid artery stenosis were located in the bifurcation of carotid artery or the beginning of internal carotid artery. All patients successfully underwent one-stop CEA combined with OPCABG. The number of bridging vessels was 2-4 (2.8±0.6). The operation time of CEA was 16-35 (25.7±5.6) min. There was no death during the perioperative or follow-up periods. No serious complications such as stroke and myocardial infarction occurred during the perioperative period. During the follow-up of 6-40 months, the patency rate of arterial bridge was 100.0% (12/12), and that of venous bridge was 95.5% (21/22). Cervical vascular ultrasound showed that the blood flow of carotid artery was satisfactory. ConclusionOne-stop CEA and OPCABG can be safely and effectively used to treat CAD and carotid artery stenosis. The early and middle-term curative effect is satisfactory.

    Release date:2024-01-04 03:39 Export PDF Favorites Scan
  • Preoperative peripheral blood CD4/CD8 ratio in predicting the prognosis of patients with coronary atherosclerotic heart disease after off-pump coronary artery bypass grafting

    ObjectiveTo investigate the role of preoperative peripheral blood CD4/CD8 ratio in predicting the prognosis of patients with coronary atherosclerotic heart disease (CAD) after off-pump coronary artery bypass grafting (OPCABG).MethodsA total of 118 patients with CAD who underwent OPCABG in our hospital from September 2016 to April 2017 were included in the study, including 82 males and 36 females aged 62.74±4.50 years. The primary end point was the incidence of major adverse cardiovascular events (MACE). Patients were divided into a high CD4/CD8 group (≥1.40, 62 patients) and a low CD4/CD8 group (<1.40, 56 patients) according to the results of flow cytometry. The correlation between CD4/CD8 ratio and prognosis of patients after OPCABG and the value of CD4/CD8 ratio for predicting postoperative MACE were evaluated.ResultsMedian duration of follow-up was 23.25 (20.91, 24.70) months, during which 21 patients (17.80%) experienced MACE and 4 patients (3.39%) were lost to follow-up. Kaplan-Meier analysis revealed that high CD4/CD8 group had a significantly higher MACE rate than the low CD4/CD8 group did (log-rank χ2=5.797, P=0.02). The results of adjusted Cox proportional hazards model showed that CD4/CD8 ratio (HR=3.103, 95%CI 1.557-6.187, P<0.01) was an independent risk factor of MACE in patients with CAD after OPCABG. The receiver operating characteristic curve showed that area under curve was 0.778 (95%CI 0.661-0.894, P<0.01), the optimal cut off value was 2.24, the sensitivity was 57.1%, and the specificity was 87.6%.ConclusionPreoperative peripheral blood CD4/CD8 ratio is an independent predictor of MACE after OPCABG in patients with CAD.

    Release date:2020-01-17 05:18 Export PDF Favorites Scan
  • 冠状动脉旁路移植术63例

    目的 总结冠状动脉旁路移植术(CABG)的临床经验,以提高手术疗效. 方法 对63例有症状、内科药物治疗无效的冠心病患者经冠状动脉造影确诊后施行CABG手术,其中有3例术前因左心衰竭、急性肺水肿在主动脉内球囊反搏(IABP)支持下行CABG手术, 2例因经皮腔内冠状动脉成形术(PTCA)失败而急诊手术.同期行冠状动脉内膜剥脱术1例,心瓣膜置换术1例. 结果 共移植血管201支,平均每例3.2支 .术后需用IABP支持治疗5例,死亡2例,治愈出院61例.随诊60例,失访1例,所有随诊患者心绞痛症状均消失,生活质量明显提高. 结论 CABG手术治疗冠心病临床效果好,可被绝大多数患者所接受;对高龄、多支病变、陈旧性心肌梗死、心功能较差的患者仍具有良好的安全性.

    Release date:2016-08-30 06:32 Export PDF Favorites Scan
  • Establishment of A Rabbit Model of Lower Extremity Atherosclerosis Obliterans

    目的 探索建立下肢动脉粥样硬化闭塞症动物模型的有效方法。方法 30只雄性新西兰白兔随机分为3组,每组10只。空白组给予普通饲料喂养,对照组给予单纯高脂饲料喂养,实验组给予高脂饲料喂养及下肢动脉球囊损伤。实验第15周结束时观察兔下肢动脉病理形态学特征并检测血脂水平。结果 第15周时,实验组和对照组动物血脂水平较空白组均明显升高(P<0.05); 对照组和实验组动物均出现下肢动脉粥样硬化斑块,其中实验组内膜较空白组和对照组明显增厚 (P<0.01),高倍(×100)镜下可见明显的斑块及纤维帽结构。结论 高脂饲料喂养与球囊损伤结合可成功建立兔下肢动脉粥样硬化闭塞症模型,方法简单、经济,可重复性强。

    Release date:2016-09-08 10:36 Export PDF Favorites Scan
12 pages Previous 1 2 3 ... 12 Next

Format

Content