Beijing Anzhen Hospital

Beijing, China

Beijing Anzhen Hospital

Beijing, China
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Gorenflo M.,University Hospital Leuven | Gu H.,Beijing Anzhen Hospital | Xu Z.,Cardiac Center
Cardiology | Year: 2010

Congenital heart disease (CHD) is responsible for pulmonary hypertension (PH) in children in about 50% of cases. This pre-operative dynamic pulmonary hypertension can be superimposed and aggravated by acute post-operative PH or persist as chronic PH, especially in children who are not operated on early enough. Inhaled iloprost, a stable prostacyclin analogue, is used for the post-operative management of PH in infants and children with CHD. In a prospective open-label proof-of-concept study, the efficacies of inhaled nitric oxide (iNO) and inhaled iloprost were directly compared. Primary endpoints were the occurrence of a major or minor pulmonary hypertensive crisis. No significant difference between the effects of iNO versus iloprost on peri-operative PH was observed. Neither substance on its own prevented pulmonary hypertensive crises in high-risk infants, so a combination of both substances should be tested in future trials. In China, there are more than 4 million untreated CHD patients. More than 50% of them are untreated adults. Acute pulmonary vasoreactivity tests were performed in CHD patients between 9 months and 43 years of age using inhaled iloprost, in order to find out whether a pre-operative response to inhaled iloprost is a good predictor for the post-operative performance of these patients. The results showed that patient selection criteria for surgery should include both a 20% reduction in pulmonary vascular resistance (PVR) index after iloprost inhalation and a resulting PVR index <11 Wood U/m2. CHD children between 14 days and 11 years of age took part in a placebo-controlled pilot study that investigated the role of aerosolized iloprost in the treatment of PH after corrective surgery. They received either low- or high-dose iloprost or placebo. Inhaled iloprost significantly improved haemodynamics in a dose-dependent manner and prevented reactive PH and pulmonary hypertensive crises in most of these mechanically ventilated children after CHD repair. Copyright © 2010 S. Karger AG.

Chen S.-L.,Nanjing Medical University | Han Y.-L.,Shenyang Northern Hospital | Zhang Y.-J.,Nanjing Heart Center | Ye F.,Nanjing Medical University | And 6 more authors.
JACC: Cardiovascular Interventions | Year: 2013

Objectives The present study aimed to establish a risk score using a simple calculation with an enhanced predictive value for major adverse cardiac events (MACE) in patients with unprotected left main coronary artery (UPLMCA) disease after the implantation of a drug-eluting stent (DES). Background The anatomic-, clinical-, and procedure-based NERS (New Risk Stratification) score was superior to the SYNTAX (Synergy Between Percutaneous Coronary Intervention With TAXUS and Cardiac Surgery) score in predicting MACE after stenting UPLMCA. The complexity of the calculation was its major limitation. Methods The NERS score II was derived from our previous 2 studies and externally compared with the NERS and SYNTAX scores in 1,463 patients with UPLMCA disease who underwent implantation of a DES in a prospective, multicenter registry trial. The primary endpoint was MACE at 1 year after the index procedure, including myocardial infarction, cardiac death, and target vessel revascularization. Results The NERS score II system consisted of 16 (7 clinical and 9 angiographic) variables. A NERS score II ≥19 demonstrated enhanced MACE sensitivity and specificity of 84.0% and 76.0% (MACE as the state variable), respectively, which were similar to the NERS score but significantly higher compared with the SYNTAX score. A NERS score II ≥19 was the only independent predictor of cumulative MACE (hazard ratio: 3.27; 95% confidence interval [CI]: 1.86 to 5.23; p ≤ 0.001) and stent thrombosis (odds ratio: 22.15; 95% CI: 12.47 to 57.92; p ≤ 0.001) at follow-up. Conclusions The NERS score II, similar to the conventional NERS score, is more predictive of MACE than the SYNTAX score in UPLMCA patients after implantation of a DES. © 2013 BY THE AMERICAN COLLEGE OF CARDIOLOGY FOUNDATION PUBLISHED BY ELSEVIER INC.

Hu S.S.,National Center for Cardiovascular Diseases | Kong L.Z.,Ministry of Health of the People Republic of China | Gao R.L.,National Center for Cardiovascular Diseases | Zhu M.L.,National Center for Cardiovascular Diseases | And 5 more authors.
Biomedical and Environmental Sciences | Year: 2012

Major and profound changes have taken place in China over the past 30 years. Rapid socioeconomic progress has exerted a great impact on lifestyle, ranging from food, clothing, working and living conditions, and means of transportation to leisure activities and entertainment. At the same time, new health problems have emerged, and health services are facing new challenges. Presently, cardiovascular diseases (CVD) are among the top health problems of the Chinese people, and pose a serious challenge to all engaged in the prevention and control of these diseases. An epidemic of CVD in China is emerging as a result of lifestyle changes, urbanization and longevity. Both national policy decision-making and medical practice urgently need an authoritative report which comprehensively reflects the trends in the epidemic of CVD and current preventive measures. Since 2005, guided by the Bureau of Disease Prevention of the Ministry of Health of the People's Republic of China and the National Center for Cardiovascular Diseases of China, nationwide experts in the fields of epidemiology, clinical medicine and health economics in the realms of CVD, cerebrovascular disease, diabetes and chronic kidney disease, completed the Report on Cardiovascular Diseases in China every year. The report aims to provide a timely review of the trend of the epidemic and to assess the progress of prevention and control of CVD. In addition, as the report is authoritative, representative and readable, it will become an information platform in the CVD field and an important reference book for government, academic institutes, medical organizations and clinical physicians. This publication is expected to play a positive role in the prevention and control of CVD in China. We present an abstract from the Report on Cardiovascular Diseases in China (2010), including trends in CVD, morbidity and mortality of major CVDs, up-to-date assessment of risk factors, as well as health resources for CVD, and a profile of medical expenditure, with the aim of providing evidence for decision-making in CVD prevention and control programs in China, and of delivering the most authoritative information on CVD prevention and control for all citizens. © 2012 The Editorial Board of Biomedical and Environmental Sciences.

Qin Y.,Beijing Anzhen Hospital | Shi G.-P.,Harvard University
Pharmacology and Therapeutics | Year: 2011

The initiation and progression of cardiovascular diseases involve extensive arterial wall matrix protein degradation. Proteases are essential to these pathological events. Recent discoveries suggest that proteases do more than catabolize matrix proteins. During the pathogenesis of atherosclerosis, abdominal aortic aneuryms, and associated complications, cysteinyl cathepsins and mast cell tryptases and chymases participate importantly in vascular cell apoptosis, foam cell formation, matrix protein gene expression, and pro-enzyme, latent cytokine, chemokine, and growth factor activation. Experimental animal disease models have been invaluable in examining each of these protease functions. Deficiency and pharmacological inhibition of cathepsins or mast cell proteases have allowed their in vivo evaluation in the setting of pathological conditions. Recent discoveries of highly selective and potent inhibitors of cathepsins, chymase, and tryptase, and their applications in vascular diseases in animal models and non-vascular diseases in human trials, have led to the hypothesis that selective inhibition of cathepsins, chymases, and tryptase will benefit patients suffering from cardiovascular diseases. This review highlights recent discoveries from in vitro cell-based studies to experimental animal cardiovascular disease models, from protease knockout mice to treatments with recently developed selective and potent protease inhibitors, and from patients with cathepsin-associated non-vascular diseases to those affected by cardiovascular complications. © 2011 Elsevier Inc.

Mao J.,Beijing Anzhen Hospital | Yin X.,Beijing Chao Yang Hospital | Zhang Y.,Capital Medical University | Yan Q.,Beijing Chao Yang Hospital | And 3 more authors.
Circulation: Arrhythmia and Electrophysiology | Year: 2014

Background-Previous studies have suggested that systematic ablation of ganglionated plexi (GP) could increase the shortterm success rate of radiofrequency ablation for atrial fibrillation, but the long-term efficacy of this approach is not fully established. Methods and Results-Twenty-four mongrel dogs were divided into 3 groups: epicardial GP ablation group 1 (n=8), epicardial GP ablation group 2 (n=8), and a sham operation group (n=8). In the 2 epicardial GP ablation groups, the 4 major GP and the ligament of Marshall were systematically ablated. The effective refractory period and inducibility of tachyarrhythmias were measured before and immediately after GP ablation in epicardial GP ablation group 1 and 8 weeks later in the other 2 groups. Tyrosine hydroxylase and choline acetyltransferase expressions were also determined immunohistochemically 8 weeks later in the latter groups. Compared with epicardial GP ablation group 1 and the sham operation group, epicardial GP ablation group 2 had the shortest atrial and ventricular effective refractory period and the highest inducibility of atrial tachyarrhythmias. The inducibility of ventricular tachyarrhythmias among the 3 groups was comparable. The density of tyrosine hydroxylase- and choline acetyltransferase-positive nerves in the atrium was the highest in epicardial GP group 2, whereas there were no significant intergroup differences in the densities of these 2 types of nerves in the ventricle. Conclusions-After 8 weeks of healing, epicardial GP ablation without additional atrial ablation was potentially proarrhythmic, which may be attributable to decreased atrial effective refractory period and hyper-reinnervation involving both sympathetic and parasympathetic nerves. © 2014 American Heart Association, Inc.

Jiao M.,Beijing Anzhen Hospital
Zhonghua er ke za zhi. Chinese journal of pediatrics | Year: 2010

To summarize and analyze the effects of treatment and prognosis of infants with endocardial fibroelastosis (EFE) in different states of the illness undergone relevant therapies, and to understand the roles of different treatments for improving the prognosis of the disease. Data of 75 cases with EFE admitted into Anzhen Hospital Affiliated to Capital Medical University from August 1984 to June 2006 were analyzed retrospectively. (1) Of the 75 cases with EFE (40 males and 35 females), with the onset age ranged from 20-days to two years and eight months, 69 cases were treated normally and followed up in the Outpatient Department of the Hospital after discharge, the follow-up rate was 92%, with the follow-up span from six months to 23 years (5.7 years in average). During the follow-up, six cases (8.7%) died. (2) The total curative rate of EFE patients was 46.4% (32/69), while the improvement rate was 40.6% (28/69), the total rate of the cure and improvement was 87%. (3) The average value of ejection fraction (EF) of left ventricle of all the patients returned to normal two years after treatment (EF value was 55.86 ± 2.85), the percentage of patients with normal left ventricle EF at 1 year, 3 years, 5 years and 10 years after treatment was 42.6% (26/61), 64.4% (29/45), 70.7% (29/41) and 84.6% (22/26), respectively. The average value of cardiothoracic (C/T) ratio became normal three years after treatment through X ray examination (0.50 ± 0.01), however the average value of the LVDD had not been returned to normal 3 years after treatment. At 1 year, 3 years, 5 years and 10 years after treatment, the proportion of patients with normal LVDD was 0% (0/61), 13.3% (6/45), 53.7% (22/41) and 84.6% (22/26), respectively. (4) The average value of EF became normal one year after treatment in the glucocorticoid group (EF value 58.44 ± 5.10) in 37 cases scored < 22 at the first visit, while the average value of C/T normalized two years after treatment (0.50 ± 0.00); The average value of EF became normal three years after treatment in the glucocorticoid plus cyclophosphamide group (EF 57.33 ± 3.43) in 29 cases scored < 22 at the first visit, however the average value of the C/T and the LVDD did not return to normal 3 years after treatment. (5) Use of IVIG reduced the percentage of patients who received cyclophos-phamide. (6) The recovery of intimal thickness was slow in EFE patients, the span was four years on the average (1 - 8 years), the percentage of patients whose endocardium became normal 1 year, 3 years, 5 years and 10 years after treatment was 9.85% (6/61), 22.2% (10/45), 51.2% (21/41), 100% (29/29). The long-term continuous normal treatment of patients with EFE showed good therapeutic effects. For severe and refractory cases, immunotherapy must be strengthened and maintained for longer time. For those who clinically recovered, the quantity of activity should be restricted after the treatment is discontinued, and the re-examination should be done timely for further management.

Gan H.-L.,Beijing Anzhen Hospital | Zhang J.-Q.,Beijing Anzhen Hospital | Bo P.,Beijing Anzhen Hospital | Wang S.-X.,Beijing Anzhen Hospital | Lu C.-S.,Beijing Anzhen Hospital
Cardiovascular Therapeutics | Year: 2010

The aim of this study was to evaluate the effects of preoperative and postoperative statins on coronary artery bypass grafting (CABG) for extensive coronary artery disease as well as left main coronary stenosis (LMS). The data of 626 cases of extensive coronary artery disease as well as LMS patients in Anzhen Hospital between January 1998 and March 2008 for CABG procedure were retrospectively analyzed, and were classified as preoperative statin therapy group (Group A, n = 320) or preoperative no statin therapy group (Group B, n = 306). Propensity scores were estimated to determine the probability of inclusion into statin therapy group, resulting in the successful matching of 267 pairs. The incidence of in-hospital death, and atrial fibrillation or flutter and disabling stroke was higher in Group B than in Group A. The actuarial freedom from late events at 5 yrs were 98.75% ± 0.73% for the postoperative statin therapy group and 88.33% ± 3.71% for the postoperative no statin therapy group respectively, P = 0.000. The logistic regression revealed that CRP (>5.0 mg/L), and elevated Troponin I, and emergent procedure, and preoperative IABP support, and EF < 40% were the independent risk factors, and preoperatively statins was the protective factor for the perioperative death; and the Cox proportional hazard also revealed that preoperative IABP support and preoperative cardiac arrest, and EF < 40% were independent risk factors, and postoperatively statins were the protective factor for the late cardiac events. Preoperative statin therapy could provide protective effect in the perioperative period. Postoperative statin usage could provide protective effect on the late cardiac events. © 2010 Blackwell Publishing Ltd.

Wang L.,Beijing Anzhen Hospital | Peng P.,Beijing Anzhen Hospital | Zhang O.,Beijing Anzhen Hospital | Xu X.,Beijing Anzhen Hospital | And 3 more authors.
PLoS ONE | Year: 2014

Background: Evidence suggests that high-dose statin pretreatment may reduce the risk of periprocedural myocardial infarction (PMI) and major adverse cardiac events (MACE) for certain patients; however, previous analyses have not considered patients with a history of statin maintenance treatment. In this meta-analysis of randomized controlled trials (RCTs), we reevaluated the efficacy of short-term high-dose statin pretreatment to prevent PMI and MACE in an expanded set of patients undergoing elective percutaneous coronary intervention.Methods: We searched the PubMed/Medline database for RCTs that compared high-dose statin pretreatment with no statin or low-dose statin pretreatment as a prevention of PMI and MACE. We evaluated the incidence of PMI and MACE, including death, spontaneous myocardial infarction, and target vessel revascularization at the longest follow-up for each study for subgroups stratified by disease classification and prior low-dose statin treatment.Results: Twenty-four RCTs with a total of 5,526 patients were identified. High-dose statin pretreatment was associated with 59% relative reduction in PMI (odds ratio [OR]: 0.41; 95% confidence interval [CI]: 0.34-0.49; P<0.00001) and 39% relative reduction in MACE (OR: 0.61; 95% CI: 0.45-0.83; P=0.002). The benefit of highdose statin pretreatment on MACE was significant for statin-naive patients (OR: 0.69; 95% CI: 0.50-0.95; P=0.02) and prior low dose statin-treated patients (OR: 0.28; 95% CI: 0.12-0.65; P=0.003); and for patients with acute coronary syndrome (OR: 0.52; 95% CI: 0.34-0.79; P=0.003), but not for patients with stable angina (OR: 0.71; 95% CI 0.45-1.10; P=0.12). Long-term effects on survival were less obvious.Conclusions: High-dose statin pretreatment can result in a significant reduction in PMI and MACE for patients undergoing elective PCI. The positive effect of highdose statin pretreatment on PMI and MACE is significant for statin-naïve patients and patients with prior treatment. The positive effect of high-dose statin pretreatment on MACE is significant for patients with acute coronary syndrome. © 2014 Wang et al.

Wang H.,Beijing Anzhen Hospital | Xu S.,Beijing Anzhen Hospital | Sun L.,Beijing Anzhen Hospital | Pan X.,Beijing Anzhen Hospital | And 2 more authors.
PLoS ONE | Year: 2014

Background: Familial hypercholesterolemia (FH) is an autosomal dominant disease that primarily results from mutations in the low-density lipoprotein receptor (LDLR) gene. We investigated two unrelated Chinese FH patients using gene screening and functional analysis to reveal the pathogenicity and the mechanism by which these mutations cause FH. Methods: First, the LDLR gene was sequenced in these patients. Then, mutant receptors were transfected into human embryo kidney 293(HEK-293) cells, and a confocal laser-scanning microscope was used to observe the localization of mutant proteins. Further, the expression and the internalization activity were analyzed by flow cytometry. Finally, LDLR protein expression and stability was detected by western blot. Results: Two different LDLR class 2B mutations were detected in two patients. The C201F mutation is a known mutation. However, the G615V mutation is novel. Flow cytometry showed that the expression and internalization activity of the mutant LDLRs were reduced to 73.6% and 82.6% for G615V and 33.2% and 33.5% for C201F, respectively. Conclusions: This study identified two LDLR mutations in Chinese patients with FH and analyzed the relationship between the genotype and phenotype of these patients. We found that these mutant LDLRs were defective in transport, which led to a reduction in cholesterol clearance. These results increase our understanding of the mutational spectrum of FH in the Chinese population. Copyright: © 2014 Wang et al.

Gan H.,Beijing Anzhen Hospital
Pulmonary Embolism and Pulmonary Thromboendarterectomy | Year: 2011

Pulmonary embolism and chronic thromboembolic pulmonary hypertension are health devastating diseases with considerable morbidity and mortality. Pulmonary thrombectomy and pulmonary thromboendarterectomy are the procedures designed to treat pulmonary embolism and chronic thromboembolic pulmonary hypertension with very good early and long term effects. This book presents the latest research in this growing field. As a subsidiary and supporting knowledge to the pulmonary thromboendarterectomy, this book also provides knowledge relevant to the anatomy and physiology of respiratory system; pulmonary circulation and bronchial circulation; the physiology and pathophysiology of coagulation and fibrinolysis; the recent progress in thrombosis, anticoagulant and thrombolysis, deep vein thrombosis, acute pulmonary embolism and chronic thromboembolic pulmonary hypertension. © 2011 by Nova Science Publishers, Inc. All rights reserved.

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