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Tao Y, Tan Y, Zhou Y, Wang Y, Shi L, Liu XP. Double atrial potentials in the coronary sinus: What is the mechanism? J Cardiovasc Electrophysiol 2024; 35:1038-1040. [PMID: 38501297 DOI: 10.1111/jce.16247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 02/28/2024] [Indexed: 03/20/2024]
Affiliation(s)
- Yirao Tao
- Department of Cardiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yahang Tan
- Department of Cardiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yang Zhou
- Department of Cardiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yanjiang Wang
- Department of Cardiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Liang Shi
- Department of Cardiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xing-Peng Liu
- Department of Cardiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
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2
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Liu XP, Liu K. [Comparison of two different intramedullary rods combined with Ilizarov external fixation and wrapped autologous iliac bone grafting for the treatment of congenital tibial pseudarthrosis in children]. Zhonghua Wai Ke Za Zhi 2023; 61:959-967. [PMID: 37767661 DOI: 10.3760/cma.j.cn112139-20230524-00210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
Objective: To compare the initial clinical efficacy of extensible intramedullary rod fixation and Williams intramedullary rod fixation combined with Ilizarov external fixation and wrapped autologous iliac bone grafting in the treatment of congenital tibial pseudarthrosis in children. Methods: A retrospective analysis was conducted on the clinical data of 60 children with Crawford Ⅳtype congenital pseudarthrosis of the tibia treated with combined surgery at the Orthopedics Department of Hunan Children's Hospital from January 2013 to December 2020.According to different internal fixation methods,patients were divided into the extensible intramedullary rod group (30 cases) and the Williams intramedullary rod group (30 cases). There were 12 males and 18 females in the extendable intramedullary rod group, aged (33.6±6.3) months (range: 18 to 44 months), while there were 10 males and 20 females in the Williams intramedullary rod group, aged (47.8±8.6) months (range: 36 to 66 months). The anteroposterior and lateral views of tibia and fibula and the full length anteroposterior film of both lower limbs were examined to compare the clinical treatment effects of the two groups at 1-,3-,6-,9-, and 12-month after surgery. Independent sample t-test, χ2 test or Fisher exact test was used for inter group comparison. Results: Both groups of children underwent surgery successfully, with postoperative follow-up time greater than 2 years. The extensible intramedullary rod group was followed up for (49.5±6.4) months, while the Williams intramedullary rod group was followed up for (53.7±10.5) months. The initial bone healing time between the broken ends of the tibial pseudarthrosis was (5.1±0.8) months in the extensible intramedullary rod group and (5.0±0.6) months in the Williams intramedullary rod group. There was no statistically significant difference between the two groups (t=0.584, P=0.562). The initial postoperative bone healing rate of the extensible intramedullary rod group was 93.3% (28/30), while that of the Williams intramedullary rod group was 96.7% (29/30). There was no statistically significant difference between the groups (χ2=0.351 P=0.554).The postoperative fracture rate of the extensible intramedullary rod group was 20.0% (6/30), while that of the Williams intramedullary rod group was 16.7% (5/30);Six cases (20.0%) in the extensible intramedullary rod group had unequal limb lengths in both lower limbs after surgery, with a limb length difference of (2.5±1.4)cm (range: 1.5 to 5.2 cm). Eight cases (26.7%) in the Williams intramedullary rod group had a limb length difference of (2.8±1.4)cm (range: 1.8 to 6.0 cm);After surgery, there were 4 (13.3%) cases of proximal tibial valgus deformity in the extensible intramedullary rod group, with an valgus angle range of (12.5±4.9)° (range: 7 °to 18°), and 3 (10.0%) cases in the Williams intramedullary rod group, with an valgus angle of (15.0±6.0)° (range: 9°to 21°). There were 2 (6.7%) cases of ankle valgus deformity in the extensible intramedullary rod group, with an valgus angle of (11.5±4.9)° (range: 8 °to 15°), and 4 (13.3%) cases in the Williams intramedullary rod group, with an valgus angle of (14.8±6.2)° (range: 6 °to 20°). The postoperative activities of the knee and ankle joints in the extensible intramedullary rod group were normal and unrestricted, with 4 cases of extensible intramedullary rod displacement.In the Williams intramedullary rod group, there were 30 cases of postoperative ankle joint stiffness and no displacement of the fixation position of the intramedullary rod.There was no statistically significant difference in postoperative complications between the two groups of children (all P>0.05). Conclusions: The use of both extensible intramedullary rods and Williams intramedullary rods in the combined surgery for congenital tibial pseudarthrosis in children can achieve effective internal fixation results. The initial postoperative bone healing rate is high, and there is no difference in the incidence of postoperative complications between groups. Both internal fixation methods have their own advantages and disadvantages, and suitable internal fixation methods can be selected based on the characteristics of the patient.
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Affiliation(s)
- X P Liu
- Orthopedics Department,Hunan Children's Hospital,Changsha 410007, China
| | - K Liu
- Orthopedics Department,Hunan Children's Hospital,Changsha 410007, China
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Qi P, Yang YZ, Shi L, Wang YJ, Tian Y, Yuan KX, Chen XF, Li SR, Dang Y, Liu XP. His-Purkinje conduction system pacing combined with atrioventricular node ablation improves quality of life in older patients with persistent atrial fibrillation refractory to multiple ablation procedures. J Geriatr Cardiol 2023; 20:130-138. [PMID: 36910241 PMCID: PMC9992947 DOI: 10.26599/1671-5411.2023.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023] Open
Abstract
BACKGROUND Recurrence of atrial fibrillation (AF) is common in patients with persistent AF even after multiple ablation procedures. His-Purkinje conduction system pacing (HPCSP) combined with atrioventricular node ablation (AVNA) is effective in managing patients with AF and heart failure. This study aimed to determine whether HPCSP combined with AVNA can improve quality of life and alleviate symptoms in older patients with symptomatic persistent AF refractory to multiple ablation procedures, as well as evaluate the feasibility and safety of this therapy. METHODS Older patients (≥ 65 years) with symptomatic persistent AF refractory to at least two ablation procedures were treated with combined HPCSP and AVNA. The success rates and complications were recorded. Pacing parameters, European Heart Rhythm Association (EHRA) scores, and Atrial Fibrillation Effect on Quality-of-Life (AFEQT) scores obtained perioperatively were compared with those recorded at the 6-month follow-up examination. RESULTS Thirty-one patients were enrolled; of those, only thirty patients were eventually treated with AVNA because one patient developed a complete atrioventricular block following the withdrawal of the His bundle pacing lead. The success rates were 100% for HPCSP (22 cases with His bundle pacing, and 9 cases with left bundle branch pacing) and 93.3% (28/30) for AVNA, respectively. By the 6-month follow-up examination, EHRA scores improved significantly (3.00 ± 0.73 vs. 2.44 ± 0.63, P = 0.014) and AFEQT scores increased markedly (49.6 ± 20.6 vs. 70.9 ± 14.0, P = 0.001). No severe complications developed. CONCLUSIONS When used in older patients with symptomatic persistent AF refractory to multiple ablation procedures, HPCSP combined with AVNA significantly alleviated symptoms and improved quality of life during short-term follow-up. This therapy was proved to be safe and effective in this patient population.
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Affiliation(s)
- Peng Qi
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.,Heart Center, Hebei General Hospital, Hebei, China
| | - Yi-Zhen Yang
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Liang Shi
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yan-Jiang Wang
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Ying Tian
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Ke-Xin Yuan
- Heart Center, Hebei General Hospital, Hebei, China
| | | | - Shu-Ren Li
- Heart Center, Hebei General Hospital, Hebei, China
| | - Yi Dang
- Heart Center, Hebei General Hospital, Hebei, China
| | - Xing-Peng Liu
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
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Huang LH, Gao ZZ, Li WY, Zhang HC, Zheng JW, Liu XP. Stereotactic body radiation therapy for refractory premature ventricular contractions that originate from the left ventricular summit: A case report. Pacing Clin Electrophysiol 2023; 46:190-194. [PMID: 36069105 DOI: 10.1111/pace.14590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/20/2022] [Accepted: 08/20/2022] [Indexed: 11/29/2022]
Abstract
The case highlights an available method to minimize the target volume and reduce the radiation dose by using a temporary catheter, to reduce the long-term risk of radiotherapy for ventricular arrhythmias.
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Affiliation(s)
- Li-Hong Huang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Zhi-Zhang Gao
- Department of Radiation Oncology, Sunshine Union Hospital, Weifang, China
| | - Wei-Yong Li
- Department of Radiation Oncology, Sunshine Union Hospital, Weifang, China
| | - Hou-Cai Zhang
- Department of Radiation Oncology, Sunshine Union Hospital, Weifang, China
| | | | - Xing-Peng Liu
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
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Zhang J, Liu KH, Zhang Y, Hao JP, Zhang GF, Xu XY, Chang J, Liu XP, Yang XY, Ye J. Application of transcriptome in time analysis and donor characterization in blood samples. Yi Chuan 2023; 45:52-66. [PMID: 36927638 DOI: 10.16288/j.yczz.22-293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
As an effective supplement to the current forensic DNA typing and one of the research hotpots in forensic science, the in-depth mining and characterization of biological evidence can provide rich and reliable clues for case investigation. In this study, the time-dependent variations of transcriptome were confirmed in in vitro blood samples within 0-168 days and a random forest model was established to realize the classification of blood samples with different TSD (time since deposition). Meanwhile, significant differences were observed in the transcripts of blood samples with different smoking habits and genders within a certain time period. HLA-DRB1, HLA-DQB1 and HLA-DQA2 were identified as markers for smoking habit identification, while the transcripts for RPS4Y1 and EIF1AY from the non-recombining region of the Y chromosome (NRY) were identified as markers for male sex identification. Thus, this study provides a theoretical foundation and experimental strategy for establishing a transcriptome-based method for characterizing blood sample retention time and donor characteristics in the field of forensic investigation.
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Affiliation(s)
- Jin Zhang
- 1. People's Public Security University of China, Beijing 100038, China.,2. Institute of Forensic Science Ministry of Public Security, Beijing 100038, China
| | - Kai-Hui Liu
- 2. Institute of Forensic Science Ministry of Public Security, Beijing 100038, China
| | - Ying Zhang
- 2. Institute of Forensic Science Ministry of Public Security, Beijing 100038, China
| | - Jin-Ping Hao
- 2. Institute of Forensic Science Ministry of Public Security, Beijing 100038, China
| | - Guang-Feng Zhang
- 2. Institute of Forensic Science Ministry of Public Security, Beijing 100038, China
| | - Xiao-Yu Xu
- 2. Institute of Forensic Science Ministry of Public Security, Beijing 100038, China
| | - Jingjing Chang
- 2. Institute of Forensic Science Ministry of Public Security, Beijing 100038, China
| | - Xing-Peng Liu
- 3. Ruijin Public Security Bureau, Ruijin 342500, China
| | - Xue-Ying Yang
- 2. Institute of Forensic Science Ministry of Public Security, Beijing 100038, China
| | - Jian Ye
- 1. People's Public Security University of China, Beijing 100038, China.,2. Institute of Forensic Science Ministry of Public Security, Beijing 100038, China
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Wang S, Patel H, Miller T, Ameyaw K, Miller P, Narang A, Kawaji K, Singh A, Landeras L, Liu XP, Mor-Avi V, Patel AR. Relation of Myocardial Perfusion Reserve and Left Ventricular Ejection Fraction in Ischemic and Nonischemic Cardiomyopathy. Am J Cardiol 2022; 174:143-150. [PMID: 35487776 PMCID: PMC9886436 DOI: 10.1016/j.amjcard.2022.02.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/31/2022] [Accepted: 02/22/2022] [Indexed: 02/02/2023]
Abstract
Quantification of myocardial perfusion reserve (MPR) using vasodilator stress cardiac magnetic resonance is increasingly used to detect coronary artery disease. However, MPR can also be altered because of changes in microvascular function. We aimed to determine whether MPR can distinguish between ischemic cardiomyopathy (IC) secondary to coronary artery disease and non-IC (NIC) with microvascular dysfunction and no underlying epicardial coronary disease. A total of 60 patients (mean age 65 ± 14 years, 30% women), including 31 with IC and 29 with NIC, were identified from a pre-existing vasodilator stress cardiac magnetic resonance registry. Short-axis cine slices were used to measure left ventricular ejection fraction (LVEF) using the Simpson method of disks. MPR index (MPRi) was determined from first-pass myocardial perfusion images during stress and rest using the upslope ratio, normalized for the arterial input and corrected for rate pressure product. Patients in both groups were divided into subgroups of LVEF ≤35% and LVEF >35%. Differences in MPRi between the subgroups were examined. MPRi was moderately correlated with LVEF in patients with NIC (r = 0.53, p = 0.03), whereas the correlation in patients with IC was lower (r = 0.32, p = 0.22). Average LVEF in NIC and IC was 34% ± 8% and 35% ± 8%, respectively (p = 0.63). MPRi was not significantly different in IC compared with NIC (1.17 [0.88 to 1.61] vs 1.23 [1.07 to 1.66], p = 0.41), including the subgroups of LVEF (IC: 1.20 ± 0.56 vs NIC: 1.15 ± 0.24, p = 0.75 for LVEF ≤35% and IC: 1.35 ± 0.44 vs NIC: 1.58 ± 0.50, p = 0.19 for LVEF >35%). However, MPRi was significantly lower in patients with LVEF ≤35% compared with those with LVEF>35% (1.17 ± 0.40 vs 1.47 ± 0.47, p = 0.01). Similar difference between LVEF groups was noted in the patients with NIC (1.15 ± 0.24 vs 1.58 ± 0.50, p = 0.006) but not in the patients with IC (1.20 ± 0.56 vs 1.35 ± 0.44, p = 0.42). MPRi can be abnormal in the presence of left ventricular dysfunction with nonischemic etiology. This is a potential pitfall to consider when using this approach to detect ischemia because of epicardial coronary disease using myocardial perfusion imaging.
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Affiliation(s)
- Shuo Wang
- Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Department of Medicine, University of Chicago, Chicago, Illinois
| | - Hena Patel
- Department of Medicine, University of Chicago, Chicago, Illinois
| | - Tamari Miller
- Department of Medicine, University of Chicago, Chicago, Illinois
| | - Keith Ameyaw
- Department of Medicine, University of Chicago, Chicago, Illinois
| | - Patrick Miller
- Department of Medicine, University of Chicago, Chicago, Illinois
| | | | - Keigo Kawaji
- Illinois Institute of Technology, Chicago, Illinois
| | - Amita Singh
- Department of Medicine, University of Chicago, Chicago, Illinois
| | - Luis Landeras
- Department of Radiology, University of Chicago, Chicago, Illinois
| | - Xing-Peng Liu
- Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
| | - Victor Mor-Avi
- Department of Medicine, University of Chicago, Chicago, Illinois
| | - Amit R Patel
- Department of Medicine, University of Chicago, Chicago, Illinois; Department of Radiology, University of Chicago, Chicago, Illinois
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7
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Lin H, Yang H, Fu JF, Yuan K, Huang W, Wu GP, Dong GJ, Tian DH, Wu DX, Tang DW, Wu LY, Sun YL, Pi LJ, Liu LP, Shi W, Gu LG, Huang ZH, Wang LQ, Chen HY, Li Y, Yu HY, Wei XR, Cheng XO, Shan Y, Liu X, Xu S, Liu XP, Luo YF, Xiao Y, Yang GM, Li M, Feng XQ, Ma DX, Pan JY, Tang RM, Chen R, Maimaiti DY, Liu XH, Cui Z, Su ZQ, Dong L, Zou YL, Liu J, Wu KX, Li Y, Li Y. [Analysis of clinical phenotype and genotype of Chinese children with disorders of sex development]. Zhonghua Er Ke Za Zhi 2022; 60:435-441. [PMID: 35488637 DOI: 10.3760/cma.j.cn112140-20210927-00828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To explore the heterogeneity and correlation of clinical phenotypes and genotypes in children with disorders of sex development (DSD). Methods: A retrospective study of 1 235 patients with clinically proposed DSD in 36 pediatric medical institutions across the country from January 2017 to May 2021. After capturing 277 DSD-related candidate genes, second-generation sequencing was performed to analyzed the heterogeneity and correlation combined with clinical phenotypes. Results: Among 1 235 children with clinically proposed DSD, 980 were males and 255 were females of social gender at the time of initial diagnosis with the age ranged from 1 day of age to 17.92 years. A total of 443 children with pathogenic variants were detected through molecular genetic studies, with a positive detection rate of 35.9%. The most common clinical phenotypes were micropenis (455 cases), hypospadias (321 cases), and cryptorchidism (172 cases) and common mutations detected were in SRD5A2 gene (80 cases), AR gene (53 cases) and CYP21A2 gene (44 cases). Among them, the SRD5A2 mutation is the most common in children with simple micropenis and simple hypospadias, while the AMH mutation is the most common in children with simple cryptorchidism. Conclusions: The SRD5A2 mutation is the most common genetic variant in Chinese children with DSD, and micropenis, cryptorchidism, and hypospadias are the most common clinical phenotypes. Molecular diagnosis can provide clues about the biological basis of DSD, and can also guide clinicians to perform specific clinical examinations. Target sequence capture probes and next-generation sequencing technology can provide effective and economical genetic diagnosis for children with DSD.
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Affiliation(s)
- H Lin
- Department of Endocrinology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - H Yang
- Department of Urology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - J F Fu
- Department of Endocrinology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - K Yuan
- Department of Endocrinology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - W Huang
- Department of Endocrinology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - G P Wu
- Department of Endocrinology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - G J Dong
- Department of Endocrinology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - D H Tian
- Department of Urology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - D X Wu
- Department of Urology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - D W Tang
- Department of Urology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - L Y Wu
- Department of Genetics and Metabolism, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - Y L Sun
- Department of Children's Gynecology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou 310052, China
| | - L J Pi
- Department of Pediatrics, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - L P Liu
- Department of Metabolism, Hebei Children's Hospital, Shijiazhuang 050031, China
| | - W Shi
- Department of Urology, Hebei Children's Hospital, Shijiazhuang 050031, China
| | - L G Gu
- Department of Endocrinology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - Z H Huang
- Department of Pediatric Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - L Q Wang
- Department of Endocrinology and Metabolism, Genetics, Xi'an Children's Hospital, Xi'an 710003, China
| | - H Y Chen
- Department of Endocrinology and Metabolism, Genetics, Children's Hospital of Soochow University, Suzhou 215300, China
| | - Y Li
- Department of Endocrinology, Jinan Children's Hospital, Jinan 250000, China
| | - H Y Yu
- Department of Pediatric Surgery, Jinan Children's Hospital, Jinan 250000, China
| | - X R Wei
- Department of Endocrinology and Metabolism, Genetics, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou 450000, China
| | - X O Cheng
- Department of Endocrinology and Metabolism, Genetics, Chengdu Women's and Children's Central Hospital, Chengdu 611731, China
| | - Y Shan
- Department of Pediatric Endocrinology and Metabolism, Genetics, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - X Liu
- Department of Endocrinology and Metabolism, Genetics, Maternal and Child Health-Care Hospital in Guiyang, Guiyang 550003, China
| | - S Xu
- Department of Endocrinology, Wuxi Children's Hospital, Wuxi 214023, China
| | - X P Liu
- Department of Endocrinology and Metabolism, Genetics, Guangdong Women and Children Hospital, Guangzhou 511442, China
| | - Y F Luo
- Department of Pediatrics, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Xiao
- Department of Pediatrics, the Second Affiliated Hospital of Medical College of Xi'an Jiaotong University, Xi'an 710004, China
| | - G M Yang
- Department of Endocrinology and Metabolism, Genetics, Jiangxi Provicial Children's Hospital, Nanchang 330006, China
| | - M Li
- Department of Pediatric Endocrine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250014, China
| | - X Q Feng
- Department of Endocrinology and Metabolism, Genetics, Children's Hospital of Shanxi Province, Taiyuan 030013, China
| | - D X Ma
- Department of Pediatrics, Guizhou Provincial People's Hospital, Guiyang 550002, China
| | - J Y Pan
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - R M Tang
- Department of Pediatrics, Boai Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan 528403, China
| | - Ruimin Chen
- Department of Endocrinology, Fuzhou Children's Hospital of Fujian Medical University, Fuzhou 350005, China
| | - D Y Maimaiti
- Department of Pediatrics, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - X H Liu
- Department of Pediatrics, Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China
| | - Z Cui
- Department of Pediatric Surgery, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Z Q Su
- Department of Endocrinology, Shenzhen Children's Hospital, Shenzhen 518023, China
| | - L Dong
- Department of Pediatrics, Henan Provincial Hospital of Traditional Chinese Medicine, Zhengzhou 450009, China
| | - Y L Zou
- Department of Child Health Care, Linyi Peoples Hospital, Linyi 276000, China
| | - J Liu
- Department of Pediatrics, the Second Affiliated Hospital of Nanchang University, Nangchang 330006, China
| | - K X Wu
- Department of Pediatrics Endocrinology and Metabolism, Genetics, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Y Li
- Department of Pediatrics, the Affiliated Yantai Yuhuangding Hospital, Yantai 264000, China
| | - Yuan Li
- Department of Pediatrics, First People's Hospital of Yunnan Province, Kunming 650032, China
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Zuo K, Zhang J, Fang C, Wang YX, Liu LF, Liu Y, Liu Z, Wang YJ, Shi L, Tian Y, Yin XD, Liu XP, Liu XQ, Zhong JC, Li KB, Li J, Yang XC. [Metagenomic data-analysis reveals enrichment of lipopolysaccharide synthesis in the gut microbiota of atrial fibrillation patients]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:249-256. [PMID: 35340143 DOI: 10.3760/cma.j.cn112148-20210106-00015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the functional changes of key gut microbiota (GM) that produce lipopolysaccharide (LPS) in atrial fibrillation (AF) patients and to explore their potential role in the pathogenesis of AF. Methods: This was a prospective cross-sectional study. Patients with AF admitted to Beijing Chaoyang Hospital of Capital Medical University were enrolled from March 2016 to December 2018. Subjects with matched genetic backgrounds undergoing physical examination during the same period were selected as controls. Clinical baseline data and fecal samples were collected. Bacterial DNA was extracted and metagenomic sequencing was performed by using Illumina Novaseq. Based on metagenomic data, the relative abundances of KEGG Orthology (KO), enzymatic genes and species that harbored enzymatic genes were acquired. The key features were selected via the least absolute shrinkage and selection operator (LASSO) analysis. The role of GM-derived LPS biosynthetic feature in the development of AF was assessed by receiver operating characteristic (ROC) curve, partial least squares structural equation modeling (PLS-SEM) and logistic regression analysis. Results: Fifty nonvalvular AF patients (mean age: 66.0 (57.0, 71.3), 32 males(64%)) were enrolled as AF group. Fifty individuals (mean age 55.0 (50.5, 57.5), 41 males(82%)) were recruited as controls. Compared with the controls, AF patients showed a marked difference in the GM genes underlying LPS-biosynthesis, including 20 potential LPS-synthesis KO, 7 LPS-biosynthesis enzymatic genes and 89 species that were assigned as taxa harbored nine LPS-enzymatic genes. LASSO regression analysis showed that 5 KO, 3 enzymatic genes and 9 species could be selected to construct the KO, enzyme and species scoring system. Genes enriched in AF group included 2 KO (K02851 and K00972), 3 enzymatic genes (LpxH, LpxC and LpxK) and 7 species (Intestinibacter bartlettii、Ruminococcus sp. JC304、Coprococcus catus、uncultured Eubacterium sp.、Eubacterium sp. CAG:251、Anaerostipes hadrus、Dorea longicatena). ROC curve analysis revealed the predictive capacity of differential GM-derived LPS signatures to distinguish AF patients in terms of above KO, enzymatic and species scores: area under curve (AUC)=0.957, 95%CI: 0.918-0.995, AUC=0.940, 95%CI 0.889-0.991, AUC=0.972, 95%CI 0.948-0.997. PLS-SEM showed that changes in lipopolysaccharide-producing bacteria could be involved in the pathogenesis of AF. The key KO mediated 35.17% of the total effect of key bacteria on AF. After incorporating the clinical factors of AF, the KO score was positively associated with the significantly increased risk of AF (OR<0.001, 95%CI:<0.001-0.021, P<0.001). Conclusion: Microbes involved in LPS synthesis are enriched in the gut of AF patients, accompanied with up-regulated LPS synthesis function by encoding the LPS-enzymatic biosynthesis gene.
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Affiliation(s)
- K Zuo
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - J Zhang
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - C Fang
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Y X Wang
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - L F Liu
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Y Liu
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Z Liu
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Y J Wang
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - L Shi
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Y Tian
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - X D Yin
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - X P Liu
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - X Q Liu
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - J C Zhong
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - K B Li
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - J Li
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - X C Yang
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
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Wang S, Patel H, Miller T, Ameyaw K, Narang A, Chauhan D, Anand S, Anyanwu E, Besser SA, Kawaji K, Liu XP, Lang RM, Mor-Avi V, Patel AR. AI Based CMR Assessment of Biventricular Function: Clinical Significance of Intervendor Variability and Measurement Errors. JACC Cardiovasc Imaging 2022; 15:413-427. [PMID: 34656471 PMCID: PMC8917993 DOI: 10.1016/j.jcmg.2021.08.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 08/09/2021] [Accepted: 08/17/2021] [Indexed: 12/30/2022]
Abstract
OBJECTIVES The aim of this study was to determine whether left ventricular ejection fraction (LVEF) and right ventricular ejection fraction (RVEF) and left ventricular mass (LVM) measurements made using 3 fully automated deep learning (DL) algorithms are accurate and interchangeable and can be used to classify ventricular function and risk-stratify patients as accurately as an expert. BACKGROUND Artificial intelligence is increasingly used to assess cardiac function and LVM from cardiac magnetic resonance images. METHODS Two hundred patients were identified from a registry of individuals who underwent vasodilator stress cardiac magnetic resonance. LVEF, LVM, and RVEF were determined using 3 fully automated commercial DL algorithms and by a clinical expert (CLIN) using conventional methodology. Additionally, LVEF values were classified according to clinically important ranges: <35%, 35% to 50%, and ≥50%. Both ejection fraction values and classifications made by the DL ejection fraction approaches were compared against CLIN ejection fraction reference. Receiver-operating characteristic curve analysis was performed to evaluate the ability of CLIN and each of the DL classifications to predict major adverse cardiovascular events. RESULTS Excellent correlations were seen for each DL-LVEF compared with CLIN-LVEF (r = 0.83-0.93). Good correlations were present between DL-LVM and CLIN-LVM (r = 0.75-0.85). Modest correlations were observed between DL-RVEF and CLIN-RVEF (r = 0.59-0.68). A >10% error between CLIN and DL ejection fraction was present in 5% to 18% of cases for the left ventricle and 23% to 43% for the right ventricle. LVEF classification agreed with CLIN-LVEF classification in 86%, 80%, and 85% cases for the 3 DL-LVEF approaches. There were no differences among the 4 approaches in associations with major adverse cardiovascular events for LVEF, LVM, and RVEF. CONCLUSIONS This study revealed good agreement between automated and expert-derived LVEF and similarly strong associations with outcomes, compared with an expert. However, the ability of these automated measurements to accurately classify left ventricular function for treatment decision remains limited. DL-LVM showed good agreement with CLIN-LVM. DL-RVEF approaches need further refinements.
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Affiliation(s)
- Shuo Wang
- University of Chicago, Chicago, Illinois,Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Hena Patel
- University of Chicago, Chicago, Illinois
| | | | | | | | | | | | | | | | - Keigo Kawaji
- University of Chicago, Chicago, Illinois,Illinois Institute of Technology, Chicago, Illinois
| | - Xing-Peng Liu
- Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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Peng XY, Wang YJ, Sun LL, Shi L, Cheng CD, Huang LH, Tian Y, Liu XP. Is the pacing site closer to the left ventricular septal endocardium in left bundle branch pacing or in left ventricular septal pacing? J Interv Card Electrophysiol 2022; 66:539-549. [PMID: 35146599 DOI: 10.1007/s10840-022-01143-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 01/30/2022] [Indexed: 10/19/2022]
Abstract
PURPOSE Distinguishing between left bundle branch pacing (LBBP) and left ventricular septal pacing (LVSP) is challenging. This study aimed to compare the echocardiographic distance from the pacing lead tip to the left ventricular (LV) septal endocardium between patients who underwent LBBP and those who underwent LVSP successfully. METHODS Fifty-nine consecutive patients (age 71.9 ± 12.0 years, 35.6% male) with traditional indications for permanent cardiac pacing were included (LBBP group, n = 46; LVSP group, n = 13). Unipolar pacing from the final pacing sites generated narrow QRS complexes with a right bundle branch block pattern in all patients. After the procedure, a physician blinded to the group allocation performed echocardiographic measurements of the distance between the lead tip and the LV septal endocardium. RESULTS The mean paced QRS duration was comparable between the LBBP group and the LVSP group (105.3 ± 15.6 ms vs. 109.2 ± 9.6 ms, P = 0.287). In the LBBP group, the interval from the left bundle branch potential to QRS onset was 28.7 ± 9.0 ms. During diastole, the mean distance between the lead tip and the LV septal endocardium was 0.6 ± 0.9 mm in the LBBP group and 3.0 ± 1.6 mm in the LVSP group (P < 0.001). During systole, the distance was 1.5 ± 1.4 mm in the LBBP group and 4.3 ± 2.6 mm in the LVSP group (P < 0.001). CONCLUSIONS The landing zone of the lead tip was closer to the LV septal endocardium in the patients who underwent LBBP. There is a need for real-time intraprocedural monitoring of the distance between the lead tip and the LV septal endocardium when performing LBBP.
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Affiliation(s)
- Xin-Yi Peng
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Yan-Jiang Wang
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Lan-Lan Sun
- Department of Echocardiography, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Liang Shi
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Chao-Di Cheng
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Li-Hong Huang
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Ying Tian
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China.
| | - Xing-Peng Liu
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China.
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Yuan QS, Deng T, An JC, Guo LP, Zhou SH, Yang CG, Han BX, Kang CZ, Liu XP, Zhou T. [Isolation of Fusarium and identification of its toxins from tuberous root of Pseudostellaria heterophylla]. Zhongguo Zhong Yao Za Zhi 2021; 46:5792-5796. [PMID: 34951166 DOI: 10.19540/j.cnki.cjcmm.20210819.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Fusarium is the major pathogen of root rot of Pseudostellaria heterophylla. This study aims to explain the possible distribution of Fusarium species and the contamination of its toxin-chemotypes in tuberous root of P. heterophylla. A total of 89 strains of fungi were isolated from the tuberous root of P. heterophylla. Among them, 29 strains were identified as Fusarium by ITS2 sequence, accounting for 32.5%. They were identified as five species of F. avenaceum, F. tricinctum, F. fujikuroi, F. oxysporum, and F. graminearum based on β-Tubulin and EF-1α genes. LC-MS/MS detected 18, 1, and 5 strains able to produce ZEN, DON, and T2, which accounted for 62.1%, 3.4%, and 17.2%, respectively. Strain JK3-3 can produce ZEN, DON, and T2, while strains BH1-4-1, BH6-5, and BH16-2 can produce ZEN and T2. PCR detected six key synthase genes of Tri1, Tri7, Tri8, Tri13, PKS14, and PKS13 in strain JK3-3, which synthesized three toxins of ZEN, DON, and T2. Four key synthase genes of Tri8, Tri13, PKS14, and PKS13 were detected in strains BH1-4-1, BH6-5, and BH16-2, which were responsible for the synthesis of ZEN and T2. The results showed that the key genes of toxin biosynthesis were highly correlated with the toxins produced by Fusarium, and the biosynthesis of toxin was strictly controlled by the genetic information of the strain. This study provides a data basis for the targeted prevention and control of exo-genous mycotoxins in P. heterophylla and a possibility for the development of PCR for rapid detection of toxin contamination.
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Affiliation(s)
- Qing-Song Yuan
- Guizhou University of Traditional Chinese Medicine Guiyang 550025, China
| | - Tao Deng
- Guizhou University of Traditional Chinese Medicine Guiyang 550025, China
| | - Jiu-Chun An
- Guizhou University of Traditional Chinese Medicine Guiyang 550025, China
| | - Lan-Ping Guo
- National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
| | - Shi-Hua Zhou
- Guizhou University of Traditional Chinese Medicine Guiyang 550025, China
| | - Chang-Gui Yang
- Guizhou University of Traditional Chinese Medicine Guiyang 550025, China
| | | | - Chuan-Zhi Kang
- National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
| | - Xing-Peng Liu
- Guizhou Institute for Food and Drug Control Guiyang 550004, China
| | - Tao Zhou
- Guizhou University of Traditional Chinese Medicine Guiyang 550025, China
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12
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He SN, Tian Y, Shi L, Wang YJ, Xie BQ, Li XX, Zeng LJ, Yang XC, Liu XP. Identification of circumferential pulmonary vein isolation responders among patients with persistent atrial fibrillation: clinical value of the sequential low-dose ibutilide test. Europace 2021; 22:1197-1205. [PMID: 32514560 DOI: 10.1093/europace/euaa095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 04/24/2020] [Indexed: 11/12/2022] Open
Abstract
AIMS Circumferential pulmonary vein isolation can be effective as sole treatment for persistent atrial fibrillation. However, identifying those patients who will respond to this therapy remains a challenge. We investigated the clinical value of the sequential low-dose ibutilide test for identifying patients with persistent atrial fibrillation in whom pulmonary vein isolation is effective as sole therapy. METHODS AND RESULTS In a prospective cohort of 180 consecutive patients with persistent atrial fibrillation, intravenous low-dose (0.004 mg/kg) ibutilide was administered 3 days before ablation and after the completion of circumferential pulmonary vein isolation. In patients in whom ibutilide did not terminate atrial fibrillation pre-procedurally, but successfully terminated it intraprocedurally, no further atrial substrate modification was performed. Pre-procedural low-dose ibutilide failed to terminate the arrhythmia in all patients with persistent atrial fibrillation, while pulmonary vein isolation ± low-dose ibutilide terminated persistent atrial fibrillation in 55 (30.6%) of them (PsAF group 1). The remaining 125 (69.4%) patients underwent electrogram-based ablation (PsAF Group 2). The control group comprised 379 consecutive patients with paroxysmal atrial fibrillation who underwent pulmonary vein isolation over the same period. At 24 months follow-up, 39 (70.9%) patients in PsAF Group 1 and 276 (72.8%) patients in the control group were free from atrial tachyarrhythmias (P = NS); the arrhythmia-free rates in both groups were higher than that in PsAF group 2 (58.4%, P = 0.005). CONCLUSION The sequential low-dose ibutilide test is a simple method for identifying patients with persistent atrial fibrillation in whom pulmonary vein isolation alone is an appropriate treatment strategy.
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Affiliation(s)
- Shu-Nan He
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, No.8 Gong Ti Nan Road, Chaoyang District, Beijing 100020, China.,Heart Center, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Ying Tian
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, No.8 Gong Ti Nan Road, Chaoyang District, Beijing 100020, China
| | - Liang Shi
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, No.8 Gong Ti Nan Road, Chaoyang District, Beijing 100020, China
| | - Yan-Jiang Wang
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, No.8 Gong Ti Nan Road, Chaoyang District, Beijing 100020, China
| | - Bo-Qia Xie
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, No.8 Gong Ti Nan Road, Chaoyang District, Beijing 100020, China
| | - Xue-Xun Li
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, No.8 Gong Ti Nan Road, Chaoyang District, Beijing 100020, China
| | - Li-Jun Zeng
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, No.8 Gong Ti Nan Road, Chaoyang District, Beijing 100020, China
| | - Xin-Chun Yang
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, No.8 Gong Ti Nan Road, Chaoyang District, Beijing 100020, China
| | - Xing-Peng Liu
- Heart Center, Beijing Chaoyang Hospital, Capital Medical University, No.8 Gong Ti Nan Road, Chaoyang District, Beijing 100020, China
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13
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Wang YJ, Tian Y, Shi L, Zeng LJ, Xie BQ, Li XX, Yang XC, Liu XP. Pulmonary vein isolation guided by moderate ablation index targets combined with strict procedural endpoints for patients with paroxysmal atrial fibrillation. J Cardiovasc Electrophysiol 2021; 32:1842-1848. [PMID: 34028119 DOI: 10.1111/jce.15106] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 05/09/2021] [Accepted: 05/11/2021] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Ablation index (AI)-guided radiofrequency ablation has been increasingly used for the treatment of drug-resistant paroxysmal atrial fibrillation (AF),but the optimal AI targets remain to be determined. We aimed to examine the efficacy and safety of catheter ablation guided by moderate AI values but more strict procedural endpoints in patients with paroxysmal AF. METHODS We conducted a retrospective review of a consecutive series of patients who received their first AI-guided ablation for paroxysmal AF from 2017 to 2018. The standard procedural protocol recommends AI targets as follows: anterior: 400-450; posterior: 280-330; and roof/inferior wall: 380-430. After circumferential pulmonary vein isolation (PVI), we performed bipolar pacing along the ablation line, adenosine triphosphate (ATP)-provocation, and waited for 30 min to verify PVI. The primary clinical outcome was the rate of freedom from AF recurrence at 12 months. RESULTS A total of 140 consecutive patients were included. The mean procedure and ablation times were 132.2 ± 30.2 min and 24.2 ± 7.9 min, respectively. The first-pass isolation and final isolation rates were documented in 49.3% and in 100% of the patients, respectively. At 12 months, single-procedure freedom from atrial tachyarrhythmias was observed in 92.1% of patients. No major procedure-related complications were encountered. CONCLUSIONS Moderate AI-guided catheter ablation is highly effective for the treatment of drug-refractory paroxysmal AF in real-world settings. Over 90% of patients achieved single-procedure arrhythmia-free survival at 1 year. The outcome was obtained without major complications and the procedure involved relatively short procedure and ablation times.
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Affiliation(s)
- Yan-Jiang Wang
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Ying Tian
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Liang Shi
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Li-Jun Zeng
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Bo-Qia Xie
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xue-Xun Li
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xin-Chun Yang
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xing-Peng Liu
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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14
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Qi P, Li XX, Tian Y, Shi L, Wang YJ, Liu XP. Injection of contrast medium through a delivery sheath reveals interventricular septal vascular injury in a case of left bundle branch pacing. J Int Med Res 2021; 48:300060520947880. [PMID: 32812472 PMCID: PMC7441292 DOI: 10.1177/0300060520947880] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
A 70-year-old woman with symptomatic bradycardia caused by persistent atrial fibrillation
and atrioventricular block was referred to our institution for pacemaker implantation.
After we failed to obtain adequate His bundle capture thresholds (>2.5 V at 1.0 ms) at
three pacing sites, left bundle branch pacing was attempted as an alternative technique.
The tip of the 3830 lead was screwed towards the left side of the interventricular septum.
Contrast medium was injected through the C315 sheath, which was placed close to the right
side of the interventricular septum to determine the exact depth of the 3830 lead inside
the septum. Unexpectedly, the vessels in the interventricular septum were revealed by the
contrast, which showed that the lead had penetrated one of the septal vessels. To the best
of our knowledge, this is the first reported case of a patient in whom injection of a
contrast agent through a delivery sheath showed damage to the interventricular septal
vessels. Findings from this case suggest that injection of contrast medium through a C315
sheath that is placed close to the interventricular septum is a potential method for
excluding damage to interventricular septal vessels.
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Affiliation(s)
- Peng Qi
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.,Department of Cardiology, Hebei General Hospital, Shijiazhuang, Hebei, China
| | - Xue-Xun Li
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.,Department of Cardiology, Qingdao University Medical College Affiliated with Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - Ying Tian
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Liang Shi
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yan-Jiang Wang
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xing-Peng Liu
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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Huang LH, Gao MY, Zeng LJ, Xie BQ, Shi L, Wang YJ, Yin XD, Wang YX, Liu XQ, Tian Y, Yang XC, Liu XP. Role of the notched unipolar electrogram in guiding catheter ablation of frequent premature ventricular contractions originating from the ventricular outflow tract. J Int Med Res 2021; 48:300060520977634. [PMID: 33327831 PMCID: PMC7747111 DOI: 10.1177/0300060520977634] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Objective To investigate the value of a notched unipolar electrogram (N-uniEGM) in confirming the origin of premature ventricular contractions originating from the ventricular outflow tract (VOT-PVC) during mapping and ablation procedures. Methods This retrospective study enrolled consecutive patients with symptomatic idiopathic frequent VOT-PVCs that underwent radiofrequency ablation. The characteristics of the uniEGM of the successful ablation targets were analysed. N-uniEGM was defined as the uniEGM presenting a QS morphology with ≥1 steep notches on the downstroke deflection. All patients were followed-up for 3 months post-ablation. Results The study enrolled 190 patients with a mean ± SD age of 49.0 ± 15.3 years. N-uniEGMs were recorded in 124 of 190 (65.3%) patients. The N-uniEGM distribution area was limited to a mean ± SD of 0.8 ± 0.4 cm2. N-uniEGM showed consistency with the outcomes of activation mapping and pace mapping. Patients with an N-uniEGM had an ablation success rate of 98.4% (122 of 124) and their ablation times were significantly shorter than those without an N-uniEGM (7.6 ± 3.8 s versus 15.8 ± 8.8 s, respectively). The sensitivity and specificity of N-uniEGM in predicting successful ablation of VOT-PVCs were 72.6% and 91.7%, respectively. Conclusion N-uniEGM was a highly specific and moderately sensitive predictor of successful radiofrequency ablation in patients with VOT-PVCs.
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Affiliation(s)
- Li-Hong Huang
- Heart Centre, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Ming-Yang Gao
- Heart Centre, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Li-Jun Zeng
- Heart Centre, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Bo-Qia Xie
- Heart Centre, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Liang Shi
- Heart Centre, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yan-Jiang Wang
- Heart Centre, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xian-Dong Yin
- Heart Centre, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yu-Xing Wang
- Heart Centre, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xiao-Qing Liu
- Heart Centre, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Ying Tian
- Heart Centre, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xin-Chun Yang
- Heart Centre, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xing-Peng Liu
- Heart Centre, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
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Tan C, Zeng LJ, Shi HF, Tian Y, Ma N, Liu H, Li SC, Hu XH, Mei J, Liu XP. Intraprocedural arrhythmia termination as an end point for hybrid ablation in patients with long-standing persistent atrial fibrillation: a 2-year follow-up study. Interact Cardiovasc Thorac Surg 2021; 33:43-50. [PMID: 33890060 DOI: 10.1093/icvts/ivab055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/25/2021] [Accepted: 01/27/2021] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES Hybrid catheter and surgical ablation has emerged as an effective therapy for patients with persistent atrial fibrillation (AF). The aims of this study were to evaluate the relationship between intraprocedural arrhythmia termination and the long-term outcomes of hybrid ablation in patients with long-standing persistent AF. METHODS From May 2015 through April 2019, 50 patients with persistent AF with a mean duration of 73.3 ± 62.1 (median 54) months underwent single-step hybrid ablation. Pulmonary vein isolation, left atrial posterior wall isolation and left atrial appendage excision or closure were performed through a left-sided thoracoscopic approach. Subsequently, all patients underwent high-density endocardial mapping and electrogram-based ablation with the end point of AF termination. RESULTS We achieved intraprocedural AF termination in 84% (42/50) patients; this end point was reached in 16 patients during surgical ablation and in 26 patients during catheter ablation. Seven patients underwent repeat catheter ablation. After a mean follow-up period of 29 ± 13 months, the freedom from atrial tachyarrhythmia of a single procedure without the use of antiarrhythmic drugs was 70% (35/50). In the Cox regression model, intraprocedural termination of AF (hazard ratio 0.205, 95% confidence interval 0.058-0.730; P = 0.014) was the sole predictor of success. CONCLUSIONS The 2-year outcomes of a one-stop hybrid ablation with an end point of AF termination are promising in patients with long-standing persistent AF.
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Affiliation(s)
- Chen Tan
- Department of Cardiology, Hebei Yanda Hospital, Hebei, Hebei Province, China
| | - Li-Jun Zeng
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Hai-Feng Shi
- Department of Cardiology, Beijing Hospital, Beijing, China
| | - Ying Tian
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Nan Ma
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Hao Liu
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Sheng-Chao Li
- Department of Cardiology, Hebei Yanda Hospital, Hebei, Hebei Province, China
| | - Xue-Hong Hu
- Department of Cardiology, Hebei Yanda Hospital, Hebei, Hebei Province, China
| | - Ju Mei
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Xing-Peng Liu
- Department of Cardiology, Hebei Yanda Hospital, Hebei, Hebei Province, China.,Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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17
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Affiliation(s)
- Y Y Yang
- Department of Pathology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - X P Liu
- Department of Pathology, Shanghai Medical College of Fudan University, Shanghai 200032, China
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18
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Kazuva E, Zhang J, Tong Z, Liu XP, Memon S, Mhache E. GIS- and MCD-based suitability assessment for optimized location of solid waste landfills in Dar es Salaam, Tanzania. Environ Sci Pollut Res Int 2021; 28:11259-11278. [PMID: 33111231 DOI: 10.1007/s11356-020-11213-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 10/11/2020] [Indexed: 06/11/2023]
Abstract
Despite recent advancements in waste management technologies, landfills remain the dominant approach for the final disposal of solid waste (SW) around the world. However, landfills are associated with adverse environmental and health-related impacts. This study is primarily applied to Dar es Salaam, a city in the East African region that has failed to follow appropriate approaches for site selection and that the methods used to select the current sites are manually operated. The study used a geographical information system (GIS) combined with multicriteria decision analysis (MCDA) to objectively determine the optimal landfill sites. A comprehensive list of assessment criteria was examined through a computerized site selection procedure based on GIS to analyze the ground that was surveyed and to remotely obtain data. Analytical hierarchy process (AHP)-one of the best MCDA approaches-was used to assign relative weight and evaluate each criterion. Finally, the study computed site suitability indices (SSIs), which aids in the identification of site suitability levels (SSLs) for the entire region. The final suitability map produced by overlaying the criteria map layers showed that a large part of the study area (60.92%) was completely unsuitable for landfill siting. The remaining areas consisted of land with varying suitability level, which were grouped into four classes: very low (30.92%), low (2.05%), moderate (5.65%), and high (0.46). To this end, only the high suitability class (0.46%) was of acceptable suitability levels (ASLs) (SSI ≥ 2.0). From the numerous identified sites with ASL, only three sites were suggested. Due to concerns regarding the lifespan and environment-related risks associated with these suggested sites, there is a need to further study new environmentally friendly techniques, considering the importance of circular economy agenda of waste to resource/energy for sustainable solid waste management.
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Affiliation(s)
- Emmanuel Kazuva
- Institute of Natural Disaster Research, School of Environment, Northeast Normal University, Changchun, 130024, China
- Department of Geography, Open University of Tanzania, 23409, Dar es Salaam, Tanzania
| | - Jiquan Zhang
- Institute of Natural Disaster Research, School of Environment, Northeast Normal University, Changchun, 130024, China.
- State Environmental Protection, Key Laboratory of Wetland Ecology and Vegetation Restoration, Northeast Normal University, Changchun, 130117, China.
| | - Zhijun Tong
- Institute of Natural Disaster Research, School of Environment, Northeast Normal University, Changchun, 130024, China
- State Environmental Protection, Key Laboratory of Wetland Ecology and Vegetation Restoration, Northeast Normal University, Changchun, 130117, China
- Key Laboratory for Vegetation Ecology, Ministry of Education, Changchun, 130117, China
| | - Xing-Peng Liu
- Institute of Natural Disaster Research, School of Environment, Northeast Normal University, Changchun, 130024, China
- Key Laboratory for Vegetation Ecology, Ministry of Education, Changchun, 130117, China
| | - Shumaila Memon
- State Environmental Protection, Key Laboratory of Wetland Ecology and Vegetation Restoration, Northeast Normal University, Changchun, 130117, China
| | - Emmanuel Mhache
- Department of Geography, Open University of Tanzania, 23409, Dar es Salaam, Tanzania
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19
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Nong Y, Lin JT, Sun XW, Wang J, Ma X, Liu XP, Wang HQ, Zha RT, Shen DP, Jiang SJ, Luo SK, Zhao Q, Meng L, Wang WP, Fang J, Han LM, Lu GB, Zhang W, Li GF, Wang H, Zhao ZY, Zhou W, Wei BL, Yuan YD, Peng LP, Lu XL, Pang GF, Li FH, Li L, Zhen H. [Efficacy and safety of Kangbingdu granules in the treatment of influenza: a randomized, double-blind, double-dummy, positive-drug parallel control multicenter clinical trial]. Zhonghua Yi Xue Za Zhi 2021; 101:205-211. [PMID: 33370867 DOI: 10.3760/cma.j.cn112137-20201122-03166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the efficacy and safety of Kangbingdu granules (KBD) in the treatment of influenza. Methods: A multicenter, randomized, double-blind, double-dummy, and positive-drug parallel control trial was conducted in 27 Grade ⅢA hospitals in China and the subjects were randomly assigned to the KBD test group or the oseltamivir phosphate capsule control group at a ratio of 1∶1. 200 subjects were planned to be enrolled in each group. The experimental group was given KBD (18g each time, 3 times a day) and oseltamivir phosphate simulator orally, while the control group was given oseltamivir phosphate capsule (75 mg each time, twice a day) and KBD simulator orally for 5 days. The primary efficacy indicators included the remission time of major clinical symptoms and the time of complete defervescence. The secondary efficacy indicators included dosage of acetaminophen, the change of traditional Chinese medicine (TCM) syndrome score and the remission time of other important clinical symptoms. The efficacy of KBD in the test group and Oseltamivir phosphate control group were compared. Adverse events or adverse reactions were observed at the same time to evaluate the safety of KBD Granules. Results: A total of 393 subjects from 27 Grade ⅢA hospitals in China were enrolled. The experimental group included 195 subjects and 191 subjects (97.95%) completed the trial, While the control group included 198 subjects and 195 subjects (98.48%) completed the trial. There was no significant difference in the shedding rate and rejection rate between the two groups (P>0.05). In the Full Analysis Set (FAS), the mean age of the experimental group was (34.9±14.4) years old, with 83 males (42.78%). The mean age of the control group was (33.3±13.5) years old, with 78 males (39.59%). There were no statistically significant differences between the two groups in demographic data, physical examination, viral pathogen detection, total score of TCM syndromes and scores of each symptom at baseline (P>0.05). In the FAS, the remission time M (Q1, Q3) of major clinical symptoms was 3.0 (3.0, 4.0) days in the experimental group and 3.0 (3.0, 4.0) days in the control group, and the difference was not statistically significant (P>0.05). The time M (Q1, Q3) of complete defervescence was 34.0 (20.3, 49.0) hours in the experimental group and 36.5 (19.6, 48.8) hours in the control group, and the difference was not statistically significant (P>0.05). KBD granules had the same effect as Oseltamivir phosphate capsule (P>0.05) in terms of acetaminophen dosage, TCM syndrome effect and disappearance rate of most important clinical symptoms. Meanwhile, the disappearance rate of dizziness and chest distress on day 3 in the KBD granules group was better than that of oseltamivir phosphate capsule (P<0.05). Conclusion: KBD granules have the same efficacy as Oseltamivir Phosphate capsule in the treatment of influenza and the drug safety is good.
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Affiliation(s)
- Y Nong
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - J T Lin
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - X W Sun
- Department of Lung Diseases, Mudanjiang Hospital of Traditional Chinese Medicine, Mudanjiang 157009, China
| | - J Wang
- Department of Pulmonary and Critical Care Medicine, the Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250001, China
| | - X Ma
- Emergency Department, Luohe Hospital of traditional Chinese Medicine, Luohe 462000, China
| | - X P Liu
- Department of Pulmonary and Critical Care Medicine, the Second People's Hospital of Gansu Province, Lanzhou 730030, China
| | - H Q Wang
- Respiratory Department, the Second Affiliated Hospital of Shanxi University of traditional Chinese Medicine, Xianyang 712021, China
| | - R T Zha
- Respiratory Department of Wuhu First people's Hospital, Wuhu 241000, China
| | - D P Shen
- Department of Internal Medicine, Zaozhuang Maternal and Child Health Hospital, Zaozhuang 277800, China
| | - S J Jiang
- Department of Pulmonary and Critical Care Medicine, Shandong Provincial Hospital, Jinan 250021, China
| | - S K Luo
- Department of Internal Medicine, Urumqi Hospital of Traditional Chinese Medicine, Urumqi 830000, China
| | - Q Zhao
- Department of Respiratory Medicine, Heilongjiang Red Cross (Forest Industry General) Hospital, Haerbin 150040, China
| | - L Meng
- Department of Pulmonary and Critical Care medicine, the Second Affiliated Hospital of Shandong First Medical University, Taian 271000, China
| | - W P Wang
- Department of Respiratory Medicine, Changzhi People's Hospital, Changzhi 046000, China
| | - J Fang
- Department of Respiratory Medicine, Dezhou People's Hospital, Dezhou 253020, China
| | - L M Han
- Department of Respiratory Medicine, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, China
| | - G B Lu
- Department of Pulmonary and Critical Care Medicine, Meishan Hospital of Traditional Chinese Medicine, Meishan 620010, China
| | - W Zhang
- Department of Lung Diseases, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, China
| | - G F Li
- Respiratory Department of General Hospital of Jizhou Energy Fengfeng Group Co., Ltd, Handan 056011, China
| | - H Wang
- Department of Respiratory Medicine, Mudanjiang First People's Hospital, Mudanjiang 157011, China
| | - Z Y Zhao
- Respiratory Department of Baoding Second Hospital, Baoding 071051, China
| | - W Zhou
- Department of Pulmonary and Critical Care Medicine, General Hospital of Ningxia Medical University, Yinchuan 750003, China
| | - B L Wei
- Department of Pulmonary and Critical Care Medicine, the Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300250, China
| | - Y D Yuan
- Department of Pulmonary and Critical Care Medicine, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - L P Peng
- Department of Pulmonary and Critical Care Medicine, the First Hospital of Jilin University, Changchun 130021, China
| | - X L Lu
- Department of Respiratory Medicine, the First Affiliated Hospital of Medical College of Shihezi University, Shihezi 832008, China
| | - G F Pang
- Department of Pulmonary and Critical Care medicine, Affiliated Hospital of Chengde Medical College, Chengde 067000, China
| | - F H Li
- Department of Respiratory Medicine, Weinan Central Hospital, Weinan 714000, China
| | - L Li
- Technical Center for Drug Research and Evaluation of China Association of Traditional Chinese Medicine, Beijing 100101, China
| | - H Zhen
- Technical Center for Drug Research and Evaluation of China Association of Traditional Chinese Medicine, Beijing 100101, China
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20
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Zhu R, Liu XP. [The value and challenges of autopsy in the education of pathology]. Zhonghua Bing Li Xue Za Zhi 2020; 49:996-998. [PMID: 32992411 DOI: 10.3760/cma.j.cn112151-20200506-00360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- R Zhu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - X P Liu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
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21
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Li XX, Tian Y, Shi L, Wang YJ, Zeng LJ, Huang LH, He SN, Li JP, Liu XP. One-stop hybrid procedure combining catheter ablation and left atrial appendage closure increases long-term risk for adverse events in patients with atrial fibrillation. Pacing Clin Electrophysiol 2020; 43:1358-1365. [PMID: 33000472 DOI: 10.1111/pace.14084] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 07/25/2020] [Accepted: 08/16/2020] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Combined catheter ablation (CA) and left atrial appendage closure (LAAC) have proven to be a feasible and safe strategy in treating patients with nonvalvular atrial fibrillation (AF). However, the interactions between CA and LAAC have not been systematically explored. We analyzed the impact of CA on long-term outcomes of LAAC in patients with AF treated with the hybrid procedure. METHODS A total of 107 consecutive patients with AF who underwent LAAC were divided into two groups: group A (n = 61) included patients who underwent CA followed by LAAC during the same procedure and group B (n = 46) included patients who underwent LAAC only. All patients underwent systematic transesophageal echocardiography (TEE) follow-up. RESULTS In group A, CA resulted in severe edema of the left atrial ridge (LAR), which manifested as an increase in LAR thickness from 4.6 ± 0.4 mm before CA to 6.8 ± 0.6 mm (P < .01) after CA. TEE at 45 days showed that the incidence of peri-device leakage was significantly higher in group A than in group B (45.9% vs 4.3%, P < .001). At the 12-month follow-up, the peri-device leakage rate remained higher in group A than in group B (14.8% vs 2.2%, P < .01). Three (4.9%) patients in group A experienced transient ischemia attacks; no events were reported in group B during the 1-year follow-up. CONCLUSION Edema of LAR with the single-stage procedure that consists of CA followed by LAAC could result in increased peri-device leakage and decreased compression rate over time, which may be also associated with elevated risk profiles when compared with an LAAC-only procedure.
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Affiliation(s)
- Xue-Xun Li
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.,Department of Cardiology, Yu-Huang-Ding Hospital, Yantai, China
| | - Ying Tian
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Liang Shi
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yan-Jiang Wang
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Li-Jun Zeng
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Li-Hong Huang
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Shu-Nan He
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Jian-Ping Li
- Department of Cardiology, Yu-Huang-Ding Hospital, Yantai, China
| | - Xing-Peng Liu
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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22
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Affiliation(s)
- Xue-Rong Sun
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Tong Liu
- Department of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xing-Peng Liu
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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23
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Sun S, Zhang H, Liu XP. The phenomenon of concealed conduction in a case of His bundle pacing (HBP). J Int Med Res 2020; 48:300060520903608. [PMID: 32056481 PMCID: PMC7111079 DOI: 10.1177/0300060520903608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The phenomenon of concealed conduction in His bundle pacing (HBP) has rarely been
reported. We report here a patient who had 2: 1 atrioventricular block and
complete left bundle branch block was used because of HBP. The patient developed
continuous right bundle branch block after the operation. After excluding
mechanical damage, we speculate that the mechanism of right bundle branch block
in this case was due to concealed conduction.
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Affiliation(s)
- Shuai Sun
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.,Department of Cardiology, Shan Xi Provincial People's Hospital, Taiyuan City, Shanxi Province, China
| | - Hong Zhang
- Department of Cardiology, Shan Xi Provincial People's Hospital, Taiyuan City, Shanxi Province, China
| | - Xing-Peng Liu
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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24
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Gao MY, Zeng LJ, Li XX, Tian Y, Su PX, Yang XC, Liu XP. Ablation of ventricular tachycardia by direct left ventricle puncture through a minithoracotomy after double valve replacement: a case report and literature review. J Int Med Res 2020; 48:300060519897667. [PMID: 31996068 PMCID: PMC7113700 DOI: 10.1177/0300060519897667] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
We herein describe a 33-year-old woman with a mechanical aortic and mitral valve who developed repetitive monomorphic ventricular tachycardia with unstable hemodynamics. Catheter ablation by direct puncture at the left ventricular apex through a minithoracotomy successfully terminated the ventricular tachycardia, which had originated from the apical-septal endocardium in the left ventricle, despite the hindrance to routine access. No procedure-related complications or recurrence of the clinical ventricular tachycardia developed during a 66-month follow-up, demonstrating that endocardial ablation through direct cardiac cavity puncture can be considered in select cases.
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Affiliation(s)
- Ming-Yang Gao
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Li-Jun Zeng
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xue-Xun Li
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Ying Tian
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Pi-Xiong Su
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xin-Chun Yang
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xing-Peng Liu
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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25
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Tian Y, Padmanabhan D, McLeod CJ, Zhang P, Xiao P, Sandhu GS, Greason KL, Gulati R, Nkomo VT, Rihal CS, Polk LE, Sanvick C, Liu XP, Friedman PA, Cha YM. Utility of 30-Day Continuous Ambulatory Monitoring to Identify Patients With Delayed Occurrence of Atrioventricular Block After Transcatheter Aortic Valve Replacement. Circ Cardiovasc Interv 2019; 12:e007635. [DOI: 10.1161/circinterventions.118.007635] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Mechanical injury in the conduction system requiring permanent pacemaker (PPM) associated with transcatheter aortic valve replacement (TAVR) procedure is a common complication. The objective of this study was to use ambulatory monitor BodyGuardian to assess late occurrence of atrioventricular block (AVB) after TAVR.
Methods:
This prospective study evaluated 365 patients who underwent TAVR at Mayo Clinic, Rochester, Minnesota between June 2016 and August 2017. Patients who received PPM for bradycardia after TAVR before discharge were considered as the PPM group. Those not requiring PPM received a BodyGuardian system (BodyGuardian group) for 30 days of continuous monitoring. Primary end point was Mobitz II or third-degree atrioventricular block (II/III AVB) at 30-day follow-up.
Results:
Of 365 patients, 74 who had a PPM or an implantable cardioverter-defibrillator before TAVR and 94 who were enrolled in other studies were excluded. Of 197 patients enrolled in the study, 70 (35.5%) received PPM and 127 had BodyGuardian before the hospital dismissal. Eleven of 127 (8.6%) BodyGuardian group required PPM within 30 days after TAVR for late occurrence of symptomatic bradycardia. In total, 33 of 197 (16.7%) patients developed II/III AVB (24 before and 9 after discharge). Thirty-four patients had preexisting right bundle branch block. Of them, 16 (47%) developed II/III AVB. Of 53 patients who developed new left bundle branch block after TAVR, 14% progressed to II/III AVB within 30 days.
Conclusions:
In patients without a standard post-TAVR pacing indication, yet a potential risk to develop AVB, a strategy of 30-day monitoring identifies additional patients who require permanent pacing.
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Affiliation(s)
- Ying Tian
- Department of Cardiovascular Medicine (Y.T., D.P., P.Z., P.X., G.S.S., R.G., V.T.N., C.S.R., L.E.P., C.S., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
- Department of Cardiovascular Diseases, Beijing Chaoyang Hospital, China (Y.T., X.-P.L.)
| | - Deepak Padmanabhan
- Department of Cardiovascular Medicine (Y.T., D.P., P.Z., P.X., G.S.S., R.G., V.T.N., C.S.R., L.E.P., C.S., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | | | - Pei Zhang
- Department of Cardiovascular Medicine (Y.T., D.P., P.Z., P.X., G.S.S., R.G., V.T.N., C.S.R., L.E.P., C.S., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Peilin Xiao
- Department of Cardiovascular Medicine (Y.T., D.P., P.Z., P.X., G.S.S., R.G., V.T.N., C.S.R., L.E.P., C.S., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Gurpreet S. Sandhu
- Department of Cardiovascular Medicine (Y.T., D.P., P.Z., P.X., G.S.S., R.G., V.T.N., C.S.R., L.E.P., C.S., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Kevin L. Greason
- Department of Cardiovascular Surgery (K.L.G.), Mayo Clinic, Rochester, MN
| | - Rajiv Gulati
- Department of Cardiovascular Medicine (Y.T., D.P., P.Z., P.X., G.S.S., R.G., V.T.N., C.S.R., L.E.P., C.S., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Vuyisile T. Nkomo
- Department of Cardiovascular Medicine (Y.T., D.P., P.Z., P.X., G.S.S., R.G., V.T.N., C.S.R., L.E.P., C.S., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Charanjit S. Rihal
- Department of Cardiovascular Medicine (Y.T., D.P., P.Z., P.X., G.S.S., R.G., V.T.N., C.S.R., L.E.P., C.S., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Lynn E. Polk
- Department of Cardiovascular Medicine (Y.T., D.P., P.Z., P.X., G.S.S., R.G., V.T.N., C.S.R., L.E.P., C.S., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Carrie Sanvick
- Department of Cardiovascular Medicine (Y.T., D.P., P.Z., P.X., G.S.S., R.G., V.T.N., C.S.R., L.E.P., C.S., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Xing-Peng Liu
- Department of Cardiovascular Diseases, Beijing Chaoyang Hospital, China (Y.T., X.-P.L.)
| | - Paul A. Friedman
- Department of Cardiovascular Medicine (Y.T., D.P., P.Z., P.X., G.S.S., R.G., V.T.N., C.S.R., L.E.P., C.S., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Yong-Mei Cha
- Department of Cardiovascular Medicine (Y.T., D.P., P.Z., P.X., G.S.S., R.G., V.T.N., C.S.R., L.E.P., C.S., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
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Zhen YN, Liu XP, Lin F, Yang YG, Sun G, Zhang YJ, Wang LF, Zhai ZG, Xie WM, Wan J, Tao XC, Duan J, Li AL, Liu P. [Brain protection strategy and effectivity in pulmonary thromboendarterectomy]. Zhonghua Yi Xue Za Zhi 2019; 99:2916-2920. [PMID: 31607021 DOI: 10.3760/cma.j.issn.0376-2491.2019.37.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To summarize the experience and effectivity of brain protection in 25 patients who suffered from chronic thromboembolic pulmonary hypertension (CTEPH) and received pulmonary thromboendarterectomy (PTE) under deep hypothermic circulatory arrest. Methods: Retrospective analysis of 25 PTE surgeries in our center from December 2016 to August 2018. All cases were completed underdeep hypothermic circulatory arrest. Standard brain protections were strictly executed, including: balanced and controlled extracorporeal circulation cooling, cerebral oxygen saturation (rSO(2)) monitoring, strictly control of circulatory arrest time, and etc. The neurological adverse events during the perioperative period were recorded and statistically analyzed, and the intelligence level and cognitive function of the patients were evaluated by MMSE scale and MoCA scale before surgery and discharge. Results: All the 25 patients successfully completed the surgery, and 1 patient (4%) died of postoperative infection. The mean pulmonary arterial pressure decreased from (52.9±16.7) mmHg before surgery to (23.6±8.1) mmHg immediately after surgery (t=10.01, P<0.01), and(20.7±7.9) mmHg at 3 months follow-up (t=10.73, P<0.01). Pulmonary vascular resistance decreased from 975.4 (788.6-1 292.8) dyn·s·cm(-5) to 376.1 (283.6-565.5) dyn·s·cm(-5) (Z=5.34, P<0.01). Neurological complications occurred in 3 patients during the perioperative period, including 2 patients with hypoxic encephalopathy, and 1 patient with cerebral hemorrhage. All 3 patients fully recovered before discharge. Univariate analysis showed that the duration of rSO(2)<40% and the maximum decrease rate of rSO(2) from baseline were significantly correlated with postoperative neurological damage. Multivariate analysis showed only time of rSO(2)<40% was significantly correlated with postoperative neurological damage. There was no significant difference in MMSE and MoCA score before and after surgery (P>0.05). Conclusions: Adequate brain protection measures are essential to reduce the neurological complications of PTE surgery. Real-time intraoperative monitoring of rSO(2) and strict control of circulatory arrest time can further reduce the occurrence of neurological damage.
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Affiliation(s)
- Y N Zhen
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - X P Liu
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - F Lin
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - Y G Yang
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - G Sun
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - Y J Zhang
- Department of Surgical Anesthesia, China-Japan Friendship Hospital, Beijing 100029, China
| | - L F Wang
- Department of Surgical Anesthesia, China-Japan Friendship Hospital, Beijing 100029, China
| | - Z G Zhai
- Department of Respiratory and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - W M Xie
- Department of Respiratory and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - J Wan
- Department of Respiratory and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - X C Tao
- Department of Respiratory and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - J Duan
- Department of Surgical Intensive Care, China-Japan Friendship Hospital, Beijing 100029, China
| | - A L Li
- Department of Cardiology, China-Japan Friendship Hospital, Beijing 100029, China
| | - P Liu
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing 100029, China
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Yang YP, Yang S, An H, Liu XP, An N, Guo QW, Ao YF. [Surgical technique and mid-and-long curative effect analysis of primary repair of chronic Achilles tendon rupture]. Zhonghua Wai Ke Za Zhi 2019; 57:57-62. [PMID: 31510734 DOI: 10.3760/cma.j.issn.0529-5815.2019.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To examine the surgical method and clinical outcome of primary repair of chronic Achilles tendon rupture. Methods: From March 2012 to August 2017, clinical data of 35 consecutive patients with chronic Achilles tendon rupture who were treated with primary repair by the same doctor at Department of Sports Medicine, Peking University Third Hospital were retrospectively analyzed.There were 29 males and 6 females with age of (41.0±9.3)years(range:29-65 years), the follow-up period was (45.6±17.2) months(range:17-82 months). All the patients had unilateral tendon rupture with 22 cases on the left and 13 cases on the right.The preoperative and postoperative Visual Analogue Scale(VAS), American Orthopaedic Foot and Ankle Society Ankle-Hindfoot Score(AOFAS), the Victorian Institute of Sport Assessment-Achilles(VISA-A), the Achilles tendon Total Rupture Score(ATRS)and the Tegner Activity Score of patients were collected and compared by paired-t test. Results: Among 47 patients with chronic Achilles tendon rupture, 35 patients were followed up for (45.6 ± 17.2)months(range: 17-28 months). No serious postoperative complications such as infection or nerve damage and rerupture outcomes were reported. At the last follow-up,the VAS decreased from 1.0(2.0) (M(Q(R))) preoperative to 0.0(0.8)(Z=-3.586, P=0.00), AOFAS increased from 64.3±12.5 to 97.0±5.0(t=-14.359,P<0.001), VISA-A increased from 51.3± 9.8 to 87.8±18.0(t=- 17.656, P=0.00), Tegner increased from 0.9±0.3 to 4.6±1.7(t=- 12.524, P=0.00)and ATRS increased from 40.0±3.5 to 97.9±3.9(t=-64.133,P=0.00). Twenty-eight patients (80.0%) had returned to their preinjury activity levels, and 7 patients (20.0%) no longer participate in recreational sports. According to Arner-Lindholm curative effect evaluation criteria, 32 cases(91.4%)gained the excellent results, 1 case(2.9%) of good and 2 cases(5.7%) bad, and the percentage of the cases with the excellent or good results was 94.3%. All except 2 patients with bad results could perform a single-limb heel rise painlessly. Conclusions: Primary repair is an efficient approach for chronic Achilles tendon rupture. The mid-and-long curative effect is satisfactory and stable.Compared with other surgical techniques, operation is relatively simple and economical. The primary repair is considerably safe, with few serious complications such as infection or nerve damage and reruptures.
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Affiliation(s)
- Y P Yang
- Department of Sports Medicine, Peking University Third Hospital, Beijing 100191, China
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28
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Tian Y, Wittwer ED, Kapa S, McLeod CJ, Xiao P, Noseworthy PA, Mulpuru SK, Deshmukh AJ, Lee HC, Ackerman MJ, Asirvatham SJ, Munger TM, Liu XP, Friedman PA, Cha YM. Effective Use of Percutaneous Stellate Ganglion Blockade in Patients With Electrical Storm. Circ Arrhythm Electrophysiol 2019; 12:e007118. [DOI: 10.1161/circep.118.007118] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Percutaneous stellate ganglion blockade (SGB) has been used for drug-refractory electrical storm due to ventricular arrhythmia (VA); however, the effects and long-term outcomes have not been well studied.
Methods:
This study included 30 consecutive patients who had drug-refractory electrical storm and underwent percutaneous SGB between October 1, 2013, and March 31, 2018. Bupivacaine, alone or combined with lidocaine, was injected into the neck with good local anesthetic spread in the vicinity of the left stellate ganglion (n=15) or both stellate ganglia (n=15). Data were collected for patient clinical characteristics, immediate and long-term outcomes, and procedure-related complications.
Results:
Clinical characteristics included age, 58±14 years; men, 73.3%; and left ventricular ejection fraction, 34±16%. At 24 hours, 60% of patients were free of VA. Patients whose VA was controlled had a lower hospital mortality rate than patients whose VA continued (5.6% versus 50.0%;
P
=0.009). Implantable cardioverter-defibrillator interrogation showed a significant 92% reduction in VA episodes from 26±41 to 2±4 in the 72 hours after SGB (
P
<0.001). Patients who died during the same hospitalization (n=7) were more likely to have ischemic cardiomyopathy (100% versus 43.5%;
P
=0.03) and recurrent VA within 24 hours (85.7% versus 26.1%;
P
=0.009). There were no procedure-related major complications.
Conclusions:
SGB effectively attenuated electrical storm in more than half of patients without procedure-related complications. Percutaneous SGB may be considered for stabilizing ventricular rhythm in patients for whom other therapies have failed.
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Affiliation(s)
- Ying Tian
- Division of Heart Rhythm Services, Department of Cardiovascular Medicine (Y.T., S.K., P.X., P.A.N., S.K.M., A.J.D., H.-C.L., M.J.A., S.J.A., T.M.M., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
- Department of Cardiovascular Diseases, Beijing Chaoyang Hospital, China (Y.T., X.-P.L.)
| | - Erica D. Wittwer
- Department of Anesthesiology and Perioperative Medicine (E.D.W.), Mayo Clinic, Rochester, MN
| | - Suraj Kapa
- Division of Heart Rhythm Services, Department of Cardiovascular Medicine (Y.T., S.K., P.X., P.A.N., S.K.M., A.J.D., H.-C.L., M.J.A., S.J.A., T.M.M., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | | | - Peilin Xiao
- Division of Heart Rhythm Services, Department of Cardiovascular Medicine (Y.T., S.K., P.X., P.A.N., S.K.M., A.J.D., H.-C.L., M.J.A., S.J.A., T.M.M., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Chongqing Medical University, China (P.X.)
| | - Peter A. Noseworthy
- Division of Heart Rhythm Services, Department of Cardiovascular Medicine (Y.T., S.K., P.X., P.A.N., S.K.M., A.J.D., H.-C.L., M.J.A., S.J.A., T.M.M., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Siva K. Mulpuru
- Division of Heart Rhythm Services, Department of Cardiovascular Medicine (Y.T., S.K., P.X., P.A.N., S.K.M., A.J.D., H.-C.L., M.J.A., S.J.A., T.M.M., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Abhishek J. Deshmukh
- Division of Heart Rhythm Services, Department of Cardiovascular Medicine (Y.T., S.K., P.X., P.A.N., S.K.M., A.J.D., H.-C.L., M.J.A., S.J.A., T.M.M., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Hon-Chi Lee
- Division of Heart Rhythm Services, Department of Cardiovascular Medicine (Y.T., S.K., P.X., P.A.N., S.K.M., A.J.D., H.-C.L., M.J.A., S.J.A., T.M.M., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Michael J. Ackerman
- Division of Heart Rhythm Services, Department of Cardiovascular Medicine (Y.T., S.K., P.X., P.A.N., S.K.M., A.J.D., H.-C.L., M.J.A., S.J.A., T.M.M., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Samuel J. Asirvatham
- Division of Heart Rhythm Services, Department of Cardiovascular Medicine (Y.T., S.K., P.X., P.A.N., S.K.M., A.J.D., H.-C.L., M.J.A., S.J.A., T.M.M., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Thomas M. Munger
- Division of Heart Rhythm Services, Department of Cardiovascular Medicine (Y.T., S.K., P.X., P.A.N., S.K.M., A.J.D., H.-C.L., M.J.A., S.J.A., T.M.M., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Xing-Peng Liu
- Department of Cardiovascular Diseases, Beijing Chaoyang Hospital, China (Y.T., X.-P.L.)
| | - Paul A. Friedman
- Division of Heart Rhythm Services, Department of Cardiovascular Medicine (Y.T., S.K., P.X., P.A.N., S.K.M., A.J.D., H.-C.L., M.J.A., S.J.A., T.M.M., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
| | - Yong-Mei Cha
- Division of Heart Rhythm Services, Department of Cardiovascular Medicine (Y.T., S.K., P.X., P.A.N., S.K.M., A.J.D., H.-C.L., M.J.A., S.J.A., T.M.M., P.A.F., Y.-M.C.), Mayo Clinic, Rochester, MN
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Zhu YX, Shi Y, Fan SR, Liu XP, Yang J, Zhong SL. Multilocus sequence typing analysis of Candida africana from vulvovaginal candidiasis. BMC Infect Dis 2019; 19:461. [PMID: 31117966 PMCID: PMC6532261 DOI: 10.1186/s12879-019-4071-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 05/07/2019] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Candida africana is distributed worldwide and colonized in human genitalia and cause mainly vulvovaginal candidiasis (VVC). We report the multilocus sequence typing (MLST) analysis of C. africana from VVC. METHODS MLST analysis of 43 strains of C. africana, which were isolated from vaginal specimens of patients with VVC, was performed. The enzymatic activity of phospholipase, esterase and haemolysis enzyme production was evaluated.The level of virulent genes and resistant genes mRNA expression was determined by using real-time PCR. Antifungal susceptibilities of the isolates were assayed by using the broth microdilution method. The statistical of the results was determined by the T test and Pearson chi-squared test. RESULTS The MLST analysis revealed a substantial degree of genetic homogeneity. The DST782 and DST182 were the main MLST genotypes in C. africana. All the patients were symptomatic and with a high mycological cure rate when treated with commonly used antifungal agents.There were statistically significant differences in biofilm formation and phospholipase activity between C. africana and C.albicans. The level of virulent genes and resistant genes mRNA expression was higher in fluconazole-resistant strains. All C. africana isolates were susceptible to fluconazole, itraconazole, voriconazole, caspofungin, and micafungin. These isolates also exhibited low MICs to amphotericin B, flucytosine, and posaconazole. CONCLUSIONS Candida africana appear to be with a low level of sequence variation in MLST loci. Candida africana, a lower virulence candida, is susceptible to commonly used antifungal agents. This paper was presented at the conference of 8th Trend in Medical Mycology (6-9 October 2017, Belgrade, Serbia) and was published on conference abstract.
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Affiliation(s)
- Y X Zhu
- Department of Obstetrics and Gynecology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Y Shi
- Clinical College of Peking University Shenzhen Hospital, Anhui Medical University, Hefei, Anhui, China
| | - S R Fan
- Department of Obstetrics and Gynecology, Peking University Shenzhen Hospital, Shenzhen, China. .,Clinical College of Peking University Shenzhen Hospital, Anhui Medical University, Hefei, Anhui, China. .,Shenzhen Key Laboratory on Technology for Early Diagnosis of Major Gynecological Diseases, Shenzhen, China.
| | - X P Liu
- Department of Laboratory Science, Peking University Shenzhen Hospital, Shenzhen, China
| | - J Yang
- Department of Obstetrics and Gynecology, Peking University Shenzhen Hospital, Shenzhen, China
| | - S L Zhong
- Department of Obstetrics and Gynecology, Peking University Shenzhen Hospital, Shenzhen, China
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30
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Lane NE, Nyman JS, Uppuganti S, Chaudhari AJ, Aguirre JI, Shidara K, Liu XP, Yao W, Kimmel DB. Inhibition of vascular endothelial growth factor in young adult mice causes low bone blood flow and bone strength with no effect on bone mass in trabecular regions. Bone Rep 2019; 10:100210. [PMID: 31193542 PMCID: PMC6535464 DOI: 10.1016/j.bonr.2019.100210] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 05/03/2019] [Indexed: 12/15/2022] Open
Abstract
Objective To determine the effect of an antibody to vascular endothelial growth factor (VEGF) on bone blood flow, bone strength, and bone mass in the young adult mouse. Methods Ten-week-old male BALB/cJ mice were body weight-randomized into either a rodent anti-VEGF monoclonal antibody (anti-VEGF, B20-4.1.1; 5 mg/kg 2×/wk.; n = 12) group or a vehicle (VEH; n = 12) group. After 42 days, mice were evaluated for bone blood flow at the distal femur by 18F-NaF-PET/CT and then necropsied. Samples from trabecular and cortical bone regions were evaluated for bone strength by mechanical testing, bone mass by peripheral quantitative computed tomography (pQCT), and micoarchitecture (MicroCT). Hydration of the whole femur was studied by proton nuclear magnetic resonance relaxometry (1H NMR). Results Distal femur blood flow was 43% lower in anti-VEGF mice than in VEH mice (p = 0.009). Ultimate load in the lumbar vertebral body was 25% lower in anti-VEGF than in VEH mice (p = 0.013). Bone mineral density (BMD) in the trabecular region of the proximal humeral metaphysis by pQCT, and bone volume fraction and volumetric BMD by MicroCT were the same in the two groups. Volume fraction of bound water (BW) of the whole femur was 14% lower in anti-VEGF than in VEH mice (p = 0.003). Finally, BW, but not cortical tissue mineral density, helped section modulus explain the variance in the ultimate moment experienced by the femur in three-point bending. Conclusion Anti-VEGF caused low bone blood flow and bone strength in trabecular bone regions without influencing BMD and microarchitecture. Low bone strength was also associated with low bone hydration. These data suggest that bone blood flow is a novel bone property that affects bone quality. An antibody to vascular endothelial growth factor (anti-VEGF) caused low bone blood flow in a trabecular bone rich region. Anti-VEGF did not affect trabecular bone region and bone hydration of the whole femur were also low, trabecular bone mass was not affected by anti-VEGF. Bone blood flow may be a bone property that affects bone quality through bone hydration. Anti-VEGF caused low trabecular bone strength in the vertebral body and low bone hydration of the whole femur.
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Affiliation(s)
- N E Lane
- Center for Musculoskeletal Health, University of California at Davis Medical Center, Sacramento, CA 95817, USA
| | - J S Nyman
- Department of Orthopaedic Surgery and Rehabilitation, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - S Uppuganti
- Department of Orthopaedic Surgery and Rehabilitation, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - A J Chaudhari
- Center for Molecular and Genomic Imaging, Department of Radiology, University of California at Davis, Davis, CA 95616, USA
| | - J I Aguirre
- Department of Physiological Sciences, University of Florida, Gainesville, FL 32610, USA
| | - K Shidara
- Center for Musculoskeletal Health, University of California at Davis Medical Center, Sacramento, CA 95817, USA
| | - X P Liu
- Center for Musculoskeletal Health, University of California at Davis Medical Center, Sacramento, CA 95817, USA
| | - W Yao
- Center for Musculoskeletal Health, University of California at Davis Medical Center, Sacramento, CA 95817, USA
| | - D B Kimmel
- Department of Physiological Sciences, University of Florida, Gainesville, FL 32610, USA
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31
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Zeng LJ, Jiang YQ, Wang YJ, Shi L, Tian Y, Liu XP. Permanent left posterior fascicular area pacing through the interventricular septum in a patient with infra-Hisian block. HeartRhythm Case Rep 2019; 5:411-413. [PMID: 31453091 PMCID: PMC6701011 DOI: 10.1016/j.hrcr.2019.04.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Li-Jun Zeng
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yun-Qiu Jiang
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yan-Jiang Wang
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Liang Shi
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Ying Tian
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xing-Peng Liu
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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32
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Zeng LJ, Shi L, Tian Y, Wang YJ, Yin XD, Liu XQ, Yang XC, Liu XP. Pace capture and adenosine triphosphate provocation are complementary rather than mutually exclusive methods to ensure durable pulmonary vein isolation. J Cardiovasc Electrophysiol 2019; 30:815-823. [PMID: 30891845 DOI: 10.1111/jce.13901] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 02/11/2019] [Accepted: 02/12/2019] [Indexed: 01/29/2023]
Abstract
INTRODUCTION Adenosine triphosphate (ATP)-provoked dormant conduction (DC) and pacing for unexcitability are used to identify conduction gaps along the ablation lines after circumferential pulmonary vein isolation (CPVI). We aim to determine whether ATP provocation and pacing are interchangeable as endpoints for ablation of paroxysmal atrial fibrillation (PAF). METHODS AND RESULTS A total of 107 patients with PAF were randomly divided into two groups after completion of CPVI. In group I (A-P group, n = 53), ATP was administered first. If DC was uncovered, additional ablation was performed until ATP tests were negative. Bipolar pacing along the ablation line was performed subsequently. In group II (P-A group, n = 54), the same protocol was used, but the pacing and the ATP tests were performed in the opposite sequence. The 12-month ablation outcomes of all patients were compared with those of a historical control group of 107 patients with PAF in whom only ATP test was performed. Regardless of which test was performed first, the other modality still identified conduction gaps. In group I, pacing maneuvers identified gaps in 49% (n = 26) of patients who had negative ATP tests. In group II, ATP tests uncovered DC in 18.5% (n = 10) of patients in whom pacing identified no gaps. After 12 months, a higher proportion of patients (91.6%) were free from atrial tachyarrhythmias compared with the historical control group (81.3%; P = 0.031). CONCLUSION Pacing along the ablation lines and ATP provocation are complementary tests for evaluating the durability of CPVI and can lead to better long-term outcomes when used in combination.
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Affiliation(s)
- Li-Jun Zeng
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Liang Shi
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Ying Tian
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yan-Jiang Wang
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xian-Dong Yin
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xiao-Qing Liu
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xin-Chun Yang
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xing-Peng Liu
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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Chen SY, Yin J, Wang XM, Liu YQ, Gao YR, Liu XP. A new discussion of the cutaneous vascular reactivity in sensitive skin: A sub-group of SS? Skin Res Technol 2018; 24:432-439. [PMID: 29396896 DOI: 10.1111/srt.12446] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/04/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Sensitive skin (SS) seems not to be a one-dimensional condition and many scholars concentrate on skin barrier disruption or sensorineural change, but few focus on its increased vascular reactivity. This study explored the possibility of using the different selection methods and measurement methods to verify a high vascular reactivity in SS without an impaired cutaneous barrier function. METHODS Sixty "self-perceived sensitive skin" volunteers were enlisted and each one completed three kinds of screening tests: assess cutaneous sensory using questionnaire survey and Lactic Acid Sting Test (LAST); assess barrier function using Sodium lauryl sulphate (SLS) skin irritation test and assess cutaneous vascular reactivity using 98% DMSO test and non-invasive measurement. Volunteers were divided into different groups based on response to SLS. The DMSO clinical score and the biophysical parameters obtained by non-invasive measurement were subsequently analysed. RESULTS (1) The positive correlations could be seen between sum LAST score and sum DMSO score regardless of the observation time; (2) The biological parameters (CBF、a*values and L* values) are all keeping with DMSO score; (3) If the participants were divided into SLS reactors and non-reactors, a composition ratio of DMSO score was significant difference in these two groups and in SLS non-reactors, there were still seven participants showed high reaction to DMSO. CONCLUSIONS There is a sub-group of SS for characteristics of a high vascular reactivity without an impaired cutaneous barrier function. The DMSO test and novel non-invasive measurements which are conducive to assess cutaneous vascular reactivity, combined with SLS skin irritation test could help us to screen this kind of SS.
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Affiliation(s)
- S Y Chen
- Dermatology Department, ChengFei Hospital, Chengdu, China
| | - J Yin
- Nephrology Department, The third people's Hospital of Chenddu, The Affiliated Hospital of Xinan Jiaotong University, Chengdu, China
| | - X M Wang
- Skin & Cosmetic Research Department, Shanghai Skin Disease Hospital, Shanghai, China
| | - Y Q Liu
- Dermatology Department, The Affiliated Hospital of Xuzhou Medical College, Xuzhou, China
| | - Y R Gao
- Skin & Cosmetic Research Department, Shanghai Skin Disease Hospital, Shanghai, China
| | - X P Liu
- Skin & Cosmetic Research Department, Shanghai Skin Disease Hospital, Shanghai, China
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Tu Y, Liu XP, Li HQ, Yang P. Biological treatment of fracturing waste liquid in a membrane-coupled internal circulation aerobic biological fluidized bed with the assistance of coagulation. Environ Technol 2017; 38:3074-3083. [PMID: 28142646 DOI: 10.1080/09593330.2017.1290141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Fracturing waste liquid (FWL) is generated during shale gas extraction and contains high concentrations of suspended solid, salinity and organic compounds, which needs proper management to prevent excessive environmental disruption. Biological treatment of the FWL was attempted in this study using a membrane-coupled internal circulation aerobic biological fluidized bed (MC-ICABFB) after being treated by coagulation. The results showed that poly aluminum chloride (PAC) of 30 g/L, polyacrylamide (PAM) of 20 mg/L and pH of 7.0 were suitable choices for coagulation. The pretreated FWL mixed with synthetic wastewater at different ratios were used as the influent wastewater for the reactor. The MC-ICABFB had relatively good performance on COD and NH4+-N removal and the main residual organic compound in the effluent was phthalates according to the analysis of GC-MC profiles. In addition, a suitable pretreatment process for the FWL to facilitate biological treatment of the wastewater needs further research.
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Affiliation(s)
- Yizhou Tu
- a College of Architecture and Environment , Sichuan University , Chengdu , China
| | - Xing-Peng Liu
- b College of Communication Engineering , Chengdu Technological University , Chengdu , China
| | - Hui-Qiang Li
- a College of Architecture and Environment , Sichuan University , Chengdu , China
| | - Ping Yang
- a College of Architecture and Environment , Sichuan University , Chengdu , China
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35
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Tian GX, Liu XP, Zeng XT, Su XJ, Wei WL, Wang XH. [Bibliometric analysis on relations between cardiovascular disease and erectile dysfunction]. Zhonghua Liu Xing Bing Xue Za Zhi 2017. [PMID: 28647988 DOI: 10.3760/cma.j.issn.0254-6450.2017.06.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the current situation and trend on the relations between erectile dysfunction (ED) and cardiovascular disease (CVD) through analyzing the epidemiologic research data. Methods: We conducted a literature search on the Scopus for potentially relevant epidemiologic studies on ED and CVD published from 1957 to October, 28, 2016. Age of the article, types, regions, citation, and co-authorship of the documents were recorded. Results: A total number of 412 pieces of literature were published in the past six decades, with original articles the most common types of ED and CVD. ED and CVD associated epidemiologic topics had an annual increase in number, and remained stable in the past decade, with occident countries as the United States and Italy taking the lead in this area. Clinical and epidemiological studies were the hottest areas, with most authors sharing a co-authorship. Conclusion: Our results suggested that inter-disciplinary cooperation with emphasize on clinical application were the effective starting points for ED and CVD associated epidemiologic studies.
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Affiliation(s)
- G X Tian
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - X P Liu
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - X T Zeng
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - X J Su
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - W L Wei
- Department of 4th Cadres Ward, PLA Army General Hospital, Beijing 100700, China
| | - X H Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
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36
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Liu XP, Ni Y, He LH. Size-dependent assembly of ligated gold nanocrystals in two dimensions. J Phys Condens Matter 2016; 28:445201. [PMID: 27605114 DOI: 10.1088/0953-8984/28/44/445201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Brownian dynamics (BD) simulation based on a coarse-grained model is performed to study the assembly of dodecanethiol-ligated Au nanocrystals (NCs) at a toluene-air interface. With increasing diameter from 3 nm to 9 nm, the NCs are found to form three different phases-a dispersed phase without aggregation, a mixture of dispersed NCs and rounded clusters, and a compactly packed solid phase of the fractal structure. Such size dependence of the assembled phase is attributed to the variation in the well depth [Formula: see text] of the interaction potential between NCs, and the value of [Formula: see text] for 6 nm NCs turns out to be most suitable to form monolayers with hexagonal packing. The result is of universal importance for assembling complete monolayers, because the valley of the interaction potential can be well tailored by properly choosing the NC size, ligand length and solvent.
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Affiliation(s)
- X P Liu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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37
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Zhang D, Zhang H, Liu XP. [Status and research progress of percutaneous transcatheter mitral valve replacement]. Zhonghua Xin Xue Guan Bing Za Zhi 2016; 44:903-905. [PMID: 27903382 DOI: 10.3760/cma.j.issn.0253-3758.2016.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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38
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Xu YL, Jia X, Guo W, Liu XP, Du X, Sun GY, Zhang J, Jia SH, Hu ZZ. [Drug coated balloon with paclitaxel for the treatment of symptomatic peripheral artery disease: early and midterm results]. Zhonghua Wai Ke Za Zhi 2016; 54:617-9. [PMID: 27502138 DOI: 10.3760/cma.j.issn.0529-5815.2016.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To evaluate the safety and efficacy of the drug coated balloon (DCB) with paclitaxel in patients with symptomatic peripheral artery disease (PAD). METHODS The clinical data of 18 patients, who were diagnosed as PAD and treated with DCB from October 2013 to June 2014 in Department of Vascular Surgery, People's Liberation Army General Hospital, were retrospectively analyzed.Thirteen male and 5 female patients were in the series, the mean age of the patients was (65±7) years, and the Rutherford's categories were level 3 to 5. Patients were followed up at 3- and 6-month postoperative. The main efficacy end point were late lumen loss(LLL), rate of restenosis and clinically driven target lesion revascularization (TLR). Meanwhile, the clinical events were recorded. RESULTS Mean lesion length, the percentage of total occlusions and the percentage of in-stent restenosis were (138±91) mm, 9/18 and 2/18, respectively. Rate of technical success was 18/18. At 6-month postoperative, LLL, rate of restenosis and TLR were (0.1±0.9) mm, 2/14 and 0, respectively. There was no deaths or no amputations. CONCLUSION DCB with paclitaxel is safe in patients with PAD, and associated with reductions in LLL, restenosis and clinically driven TLR 6-month postoperative.
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Affiliation(s)
- Y L Xu
- Department of Vascular Surgery, People's Liberation Army General Hospital, Beijing 100853, China
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Zhang MH, Du X, Guo W, Liu XP, Jia X, Xiong J, Ma XH, Zhang HP, Xu YL, Wu Y, Ge YY. [Reconstruct abdominal aortic branch arteries totally by endovascular repair in complex aortic aneurysms: a single-centre experience]. Zhonghua Wai Ke Za Zhi 2016; 54:624-7. [PMID: 27502140 DOI: 10.3760/cma.j.issn.0529-5815.2016.08.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To report experiences and results of complex aortic aneurysms involving the visceral arteries treating by total endovascular repair. METHODS Seventy cases of thoracoabdominal aortic lesions treating by total endovascular repair in Department of Vascular Surgery, People's Liberation Army General Hospital from January 2011 to December 2014 were retrospectively analyzed. There were 47 cases underwent chimney technique, 6 underwent sandwich technique, 15 underwent fenestration technique and 2 underwent branched stent grafts technique. RESULTS The average follow-up time was 21 months, range from 3 to 47 months. Completion angiography showed that typeⅠ endoleak of chimney, sandwich, fenestration and branched stent grafts group were 9/47, 5/6, 2/15 and 0, respectively. While at 30-day typeⅠ endoleak reduced to 7/47, 2/6, 0 and 0. During follow-up, there were 3 target vessel stents occlusion in chimney group, the patency rate of target vessel stent was 95.1% (58/61). In sandwich, fenestration and branched stent grafts group, all the target vessel stents kept patent. CONCLUSION In this study, chimney, sandwich, fenestration and branched stent grafts techniques show good short-term and midterm results, the long-term effects still need further studies.
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Affiliation(s)
- M H Zhang
- Department of Vascular Surgery, People's Liberation Army General Hospital, Beijing 100853, China
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40
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Guo XM, Liu XP, Chang GB, Xu L, Bi YL, Wang HZ, Zhang Y, Zhu PF, Wu Y, Chen GH. Characterization of the NLRC5 promoter in chicken: SNPs, regulatory elements and CpG islands. Anim Genet 2016; 47:579-87. [PMID: 27429394 DOI: 10.1111/age.12450] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/24/2016] [Indexed: 01/07/2023]
Abstract
NLRC5 plays an important role in the innate immunity and cellular immunity in many species, but the regulatory mechanism of NLRC5 expression in chickens remains unclear. In this study, a series of deletion fragments of the NLRC5 promoter region were constructed and dual-luciferase assay was performed. Then, we detected the SNP in the core region and its function. Important transcriptional regulatory elements were predicted and identified. Methylation of CpG islands was measured. The results revealed that the two core regions of -4372 to -3756 and -2925 to -2265 in the NLRC5 promoter were essential for NLRC5 mRNA expression in which a SNP (A/G), located at -2470, was found to have an effect on the transcriptional activity. Also, the STAT1 element in the second core region of the NLRC5 promoter was identified to bind with the STAT1 transcription factor, which was necessary for the transcriptional activity. In addition, many other elements in the NLRC5 promoter, including YY1 and CEBP, may contribute significantly to the expression activity of NLRC5. Moreover, two CpG islands were searched. Part of one was located in the first core region, which suggests that epigenetic modification may regulate the activity of the first promoter region, and the other was mostly in an unmethylated state. Collectively, these results suggest the complex regulation of NLRC5 expression includes SNPs, transcription factors and methylation.
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Affiliation(s)
- X M Guo
- College of Animal Science & Technology, Yangzhou University, Yangzhou, 225009, China
| | - X P Liu
- Chinese Academy of Agricultural Sciences, Poultry Institute, Yangzhou, 225003, China
| | - G B Chang
- College of Animal Science & Technology, Yangzhou University, Yangzhou, 225009, China.
| | - L Xu
- College of Animal Science & Technology, Yangzhou University, Yangzhou, 225009, China
| | - Y L Bi
- College of Animal Science & Technology, Yangzhou University, Yangzhou, 225009, China
| | - H Z Wang
- Chinese Academy of Agricultural Sciences, Poultry Institute, Yangzhou, 225003, China
| | - Y Zhang
- College of Animal Science & Technology, Yangzhou University, Yangzhou, 225009, China
| | - P F Zhu
- College of Animal Science & Technology, Yangzhou University, Yangzhou, 225009, China
| | - Y Wu
- College of Animal Science & Technology, Yangzhou University, Yangzhou, 225009, China
| | - G H Chen
- College of Animal Science & Technology, Yangzhou University, Yangzhou, 225009, China
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Jiao ZY, Li YB, Mao J, Liu XY, Yang XC, Tan C, Chu JM, Liu XP. Differentiating origins of outflow tract ventricular arrhythmias: a comparison of three different electrocardiographic algorithms. ACTA ACUST UNITED AC 2016; 49:e5206. [PMID: 27143173 PMCID: PMC4855996 DOI: 10.1590/1414-431x20165206] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 02/24/2016] [Indexed: 11/22/2022]
Abstract
Our objective is to evaluate the accuracy of three algorithms in differentiating the
origins of outflow tract ventricular arrhythmias (OTVAs). This study involved 110
consecutive patients with OTVAs for whom a standard 12-lead surface electrocardiogram
(ECG) showed typical left bundle branch block morphology with an inferior axis. All
the ECG tracings were retrospectively analyzed using the following three recently
published ECG algorithms: 1) the transitional zone (TZ) index,
2) the V2 transition ratio, and 3)
V2 R wave duration and R/S wave amplitude indices. Considering all
patients, the V2 transition ratio had the highest sensitivity (92.3%),
while the R wave duration and R/S wave amplitude indices in V2 had the
highest specificity (93.9%). The latter finding had a maximal area under the ROC
curve of 0.925. In patients with left ventricular (LV) rotation, the V2
transition ratio had the highest sensitivity (94.1%), while the R wave duration and
R/S wave amplitude indices in V2 had the highest specificity (87.5%). The
former finding had a maximal area under the ROC curve of 0.892. All three published
ECG algorithms are effective in differentiating the origin of OTVAs, while the
V2 transition ratio, and the V2 R wave duration and R/S wave
amplitude indices are the most sensitive and specific algorithms, respectively.
Amongst all of the patients, the V2 R wave duration and R/S wave amplitude
algorithm had the maximal area under the ROC curve, but in patients with LV rotation
the V2 transition ratio algorithm had the maximum area under the ROC
curve.
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Affiliation(s)
- Z Y Jiao
- Chao-Yang Hospital, The Heart Center, Capital Medical University, Beijing, China
| | - Y B Li
- Chao-Yang Hospital, The Heart Center, Capital Medical University, Beijing, China
| | - J Mao
- Chao-Yang Hospital, The Heart Center, Capital Medical University, Beijing, China
| | - X Y Liu
- FuWai Hospital, Department of Cardiology, CAMS and PUMC, Beijing, China
| | - X C Yang
- Chao-Yang Hospital, The Heart Center, Capital Medical University, Beijing, China
| | - C Tan
- Department of Cardiology, The Military General Hospital of Beijing PLA, Beijing, China
| | - J M Chu
- FuWai Hospital, Department of Cardiology, CAMS and PUMC, Beijing, China
| | - X P Liu
- Chao-Yang Hospital, The Heart Center, Capital Medical University, Beijing, China
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42
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Liu XP, Ni Y, He LH. Elastic properties of gold supracrystals: Effects of nanocrystal size, ligand length, and nanocrystallinity. J Chem Phys 2016; 144:144507. [PMID: 27083738 DOI: 10.1063/1.4946029] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Atomistic molecular dynamics simulations are performed to study the elastic properties of alkylthiol-functionalized gold supracrystals. The predicted Young's and shear moduli are around 1 GPa and 100 MPa, respectively. We show that, with increasing NC size, the Young's modulus decreases while the shear modulus essentially remains invariant; with increasing ligand length, the Young's modulus increases but the shear modulus decreases. Moreover, significant increase in the Young's modulus is seen when the polycrystalline NCs are replaced by single-crystal ones of the same size. All these are in reasonable agreement with available experiments. We attribute the mechanisms to the interaction between capping ligands as well as its variations caused by the change in ligand length and NC geometry. The results may deepen our understanding of elastic properties of the supracrystals and their influential factors.
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Affiliation(s)
- X P Liu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Y Ni
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - L H He
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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Abstract
Interparticle spacing in supracrystals is a crucial parameter for photoelectric applications as it dominates the transport rates between neighboring nanoparticles (NPs). Based on large-scale molecular dynamics simulations, we calculate interparticle spacing in alkylthiol-stabilized gold supracrystals as a function of the NP size, ligand length and external pressure. The repulsive many-body interactions in the supracrystals are also quantified by comparing the interparticle spacing with that between two individual NPs at equilibrium. Our results are consistent with available experiments, and are expected to help precise control of interparticle spacing in supracrystal devices.
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Affiliation(s)
- X P Liu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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Liu XP, Zhang WJ, Wang XY, Cai YJ, Chang JG. Root-soil air gap and resistance to water flow at the soil-root interface of Robinia pseudoacacia. Tree Physiol 2015; 35:1343-1355. [PMID: 26358048 DOI: 10.1093/treephys/tpv075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 07/21/2015] [Indexed: 06/05/2023]
Abstract
During periods of water deficit, growing roots may shrink, retaining only partial contact with the soil. In this study, known mathematical models were used to calculate the root-soil air gap and water flow resistance at the soil-root interface, respectively, of Robinia pseudoacacia L. under different water conditions. Using a digital camera, the root-soil air gap of R. pseudoacacia was investigated in a root growth chamber; this root-soil air gap and the model-inferred water flow resistance at the soil-root interface were compared with predictions based on a separate outdoor experiment. The results indicated progressively greater root shrinkage and loss of root-soil contact with decreasing soil water potential. The average widths of the root-soil air gap for R. pseudoacacia in open fields and in the root growth chamber were 0.24 and 0.39 mm, respectively. The resistance to water flow at the soil-root interface in both environments increased with decreasing soil water potential. Stepwise regression analysis demonstrated that soil water potential and soil temperature were the best predictors of variation in the root-soil air gap. A combination of soil water potential, soil temperature, root-air water potential difference and soil-root water potential difference best predicted the resistance to water flow at the soil-root interface.
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Affiliation(s)
- X P Liu
- Taihangshan Dongpo Forest Ecosystem Research Station, State Forestry Administration/Key Laboratory of Agricultural Water Resources, Hebei Key Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China
| | - W J Zhang
- Taihangshan Dongpo Forest Ecosystem Research Station, State Forestry Administration/Key Laboratory of Agricultural Water Resources, Hebei Key Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China
| | - X Y Wang
- Taihangshan Dongpo Forest Ecosystem Research Station, State Forestry Administration/Key Laboratory of Agricultural Water Resources, Hebei Key Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China
| | - Y J Cai
- Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
| | - J G Chang
- Shanxi Academy of Forestry Sciences, Taiyuan 030012, China
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Dong JZ, Sang CH, Yu RH, Long DY, Tang RB, Jiang CX, Ning M, Liu N, Liu XP, Du X, Tse HF, Ma CS. Prospective randomized comparison between a fixed ‘2C3L’ approach vs. stepwise approach for catheter ablation of persistent atrial fibrillation. Europace 2015; 17:1798-1806. [DOI: 10.1093/europace/euv067] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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Wang HZ, Ma T, Chang GB, Wan F, Liu XP, Lu L, Xu L, Chen J, Chen GH. Single nucleotide polymorphism screening, molecular characterization, and evolutionary aspects of chicken Piwi genes. Genet Mol Res 2015; 14:14802-10. [PMID: 26600541 DOI: 10.4238/2015.november.18.45] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The P-element-induced wimpy testis (Piwi) gene is involved in germline stem cell self-renewal, meiosis, RNA silencing, and transcriptional regulation. Piwi genes are relatively well conserved in many species, but their function in poultry species is unclear. In this study, Piwi genes were sequenced using a target-sequence capture assay in quail and 28 breeds of chicken. Single nucleotide polymorphisms (SNPs) and evolutionary aspects of these chicken breeds were then analyzed. We found that SNP sites existed mainly in the introns of a few chicken breeds, and we selected an SNP on intron 4 for further verification by Sanger sequencing, the results of which were similar to those obtained by the target-capture sequencing assay. The evolutionary analysis revealed that there were more mutations in the Chahua and Leghorn breeds than in the other breeds, and that the phylogenetic tree was divided into four main categories that suggested that Piwi is evolutionarily conserved, and mutations in the introns might be associated with gametogenesis. The screened SNPs can be used as candidate markers for Piwi, and our results provide basic information for the further study of Piwi function in poultry.
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Affiliation(s)
- H Z Wang
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - T Ma
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - G B Chang
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - F Wan
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - X P Liu
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - L Lu
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - L Xu
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - J Chen
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - G H Chen
- Department of Endodontics and Operative Dentistry, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Chen JD, Wu YZ, Tao ZL, Chen ZM, Liu XP. Hawthorn (shan zha) drink and its lowering effect on blood lipid levels in humans and rats. World Rev Nutr Diet 2015; 77:147-54. [PMID: 7732698 DOI: 10.1159/000424470] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- J D Chen
- Institute of Sports Medicine, Beijing Medical University, China
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48
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Wang Y, Liu XP, Qin GW. Strain analysis of misfit dislocations in α-Fe₂O ₃/α-Al₂O ₃ heterostructure interface by geometric phase analysis. Micron 2014; 69:21-4. [PMID: 25437852 DOI: 10.1016/j.micron.2014.11.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 11/03/2014] [Accepted: 11/04/2014] [Indexed: 11/24/2022]
Abstract
The α-Fe2O3/α-Al2O3 heterostructure interfaces have been studied using transmission electron microscopy (TEM). The interface exhibited coherent regions separated by equally spaced misfit dislocations. The misfit dislocations were demonstrated to be edge dislocations with dislocation spacing of ∼4 nm. The strain fields around the misfit dislocation core were mapped using a combination of geometric phase analysis and high-resolution transmission electron microscopy images. The strain measurement results were compared with the Peierls-Nabarro dislocation model and the Foreman dislocation model. These comparisons show that the Foreman model (a=2) is the most appropriate theoretical model to describe the strain fields of the dislocation core.
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Affiliation(s)
- Y Wang
- Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110004, China.
| | - X P Liu
- Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110004, China
| | - G W Qin
- Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110004, China
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49
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Abstract
We performed a coarse-grained. molecular dynamics (MD) simulation to study the unidirectional tension of 2D superlattices of alkythiol-ligated Au nanocrystals (NCs). Consistent with available experiments, the predicted Young's modulus is in the range of 6-15 GPa, exhibiting a trend of decreasing with the increasing NCs' size and decreasing ligand length. Our simulation shows that the deformation of the superlattice experiences elastic and nonelastic stages before defect nucleation at the NC level. The larger tensile strain gives rise to slips along the most densely packed lines, making them equal to [Formula: see text] with the tensile direction before deformation, which further triggers the occurrence of cavities and cracks and finally leads to the fracture of the specimen. These results provide a clear picture for the tensile behavior of 2D superlattices from deformation to rupture.
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Affiliation(s)
- X P Liu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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50
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Tang RB, Dong JZ, Long DY, Yu RH, Liu XP, Cheng YL, Sang CH, Ning M, Jiang CX, Avula UMR, Bai R, Liu N, Ruan YF, Du X, Ma CS. Incidence and clinical characteristics of transient ST-T elevation during transseptal catheterization for atrial fibrillation ablation. Europace 2014; 17:579-83. [PMID: 25349227 DOI: 10.1093/europace/euu278] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 09/16/2014] [Indexed: 01/15/2023] Open
Abstract
AIMS Transient ST-T elevation (STE) is a rare complication that occurs during transseptal catheterization. This study aims to delineate the incidence and characteristics of transient STE during transseptal catheterization for atrial fibrillation (AF) ablation. METHODS AND RESULTS Consecutive patients who underwent fluoroscopy-guided transseptal catheterization for circumferential pulmonary vein radiofrequency ablation in Beijing An Zhen Hospital from January 2006 to January 2013 were enrolled in this study. Out of 2965 patients with a total of 3452 transseptal catheterization procedures, 13 patients (0.38%, mean age 57 ± 8, 6 female, 12 paroxysmal AF, mean left atrial diameter 35.4 ± 3.8 mm) had STE. ST-T elevation occurred after transseptal puncture in 10 patients and after pulmonary vein venography in three patients. Systolic blood pressure (129 ± 10 vs. 104 ± 20 mmHg, P < 0.001), diastolic blood pressure (78 ± 6 vs. 64 ± 11 mmHg, P < 0.001), and heart rate (83 ± 19 bpm vs. 64 ± 23 b.p.m., P = 0.022) significantly decreased when STE occurred. Eleven patients complained of chest pain, one patient complained of dizziness, and one patient had no symptoms. Patients recovered in about 4.6 min (2-10 min) with dopamine or fast saline drip. Catheter ablation of AF was completed in all the 13 patients without sequelae or other complications. Four of the 13 patients (30.8%) had recurrence of AF after a mean follow-up of 21.7 months. CONCLUSION ST-T elevation is a rare complication associated with transseptal catheterization without sequelae. Catheter ablation of AF could be safely completed in these patients.
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Affiliation(s)
- Ri-Bo Tang
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Chaoyang District, Beijing Zip 100029, China
| | - Jian-Zeng Dong
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Chaoyang District, Beijing Zip 100029, China
| | - De-Yong Long
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Chaoyang District, Beijing Zip 100029, China
| | - Rong-Hui Yu
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Chaoyang District, Beijing Zip 100029, China
| | - Xing-Peng Liu
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Chaoyang District, Beijing Zip 100029, China
| | - Yan-Li Cheng
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Chaoyang District, Beijing Zip 100029, China
| | - Cai-Hua Sang
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Chaoyang District, Beijing Zip 100029, China
| | - Man Ning
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Chaoyang District, Beijing Zip 100029, China
| | - Chen-Xi Jiang
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Chaoyang District, Beijing Zip 100029, China
| | - Uma Mahesh R Avula
- Center for Arrhythmia Research, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Rong Bai
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Chaoyang District, Beijing Zip 100029, China
| | - Nian Liu
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Chaoyang District, Beijing Zip 100029, China
| | - Yan-Fei Ruan
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Chaoyang District, Beijing Zip 100029, China
| | - Xin Du
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Chaoyang District, Beijing Zip 100029, China
| | - Chang-Sheng Ma
- Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Chaoyang District, Beijing Zip 100029, China
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