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Rustenbach CJ, Reichert S, Radwan M, Doll I, Mustafi M, Nemeth A, Marinos SL, Berger R, Baumbach H, Zdanyte M, Haeberle H, Caldonazo T, Saqer I, Saha S, Schnackenburg P, Djordjevic I, Krasivskyi I, Wendt S, Kuhn E, Higuita LMS, Doenst T, Hagl C, Wahlers T, Boburg RS, Schlensak C. On- vs. Off-Pump CABG in Heart Failure Patients with Reduced Ejection Fraction (HFrEF): A Multicenter Analysis. Biomedicines 2023; 11:3043. [PMID: 38002044 PMCID: PMC10669606 DOI: 10.3390/biomedicines11113043] [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: 09/25/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
OBJECTIVE This study aimed to compare postoperative outcomes and 30-day mortality in patients with reduced ejection fraction (<40%) who underwent isolated coronary artery bypass grafting (CABG) with (ONCAB) and without (OPCAB) the use of cardiopulmonary bypass. METHODS data from four university hospitals in Germany, spanning from January 2017 to December 2021, were retrospectively analyzed. A total of 551 patients were included in the study, and various demographic, intraoperative, and postoperative data were compared. RESULTS demographic parameters did not exhibit any differences. However, the OPCAB group displayed notably higher rates of preoperative renal insufficiency, urgent surgeries, and elevated EuroScore II and STS score. During surgery, the ONCAB group showed a significantly higher rate of complete revascularization, whereas the OPCAB group required fewer intraoperative transfusions. No disparities were observed in 30-day/in-hospital mortality for the entire cohort and the matched population between the two groups. Subsequent to surgery, the OPCAB group demonstrated significantly shorter mechanical ventilation times, reduced stays in the intensive care unit, and lower occurrences of ECLS therapy, acute kidney injury, delirium, and sepsis. CONCLUSIONS the study's findings indicate that OPCAB surgery presents a safe and viable alternative, yielding improved postoperative outcomes in this specific patient population compared to ONCAB surgery. Despite comparable 30-day/in-hospital mortality rates, OPCAB patients enjoyed advantages such as decreased mechanical ventilation durations, shorter ICU stays, and reduced incidences of ECLS therapy, acute kidney injury, delirium, and sepsis. These results underscore the potential benefits of employing OPCAB as a treatment approach for patients with coronary heart disease and reduced ejection fraction.
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Affiliation(s)
- Christian Jörg Rustenbach
- Department of Thoracic and Cardiovascular Surgery, German Cardiac Competence Center, Eberhard-Karls-University of Tuebingen, 72076 Tübingen, Germany; (C.J.R.); (M.R.); (I.D.); (M.M.); (A.N.); (S.L.M.); (R.B.); (R.S.B.); (C.S.)
| | - Stefan Reichert
- Department of Thoracic and Cardiovascular Surgery, German Cardiac Competence Center, Eberhard-Karls-University of Tuebingen, 72076 Tübingen, Germany; (C.J.R.); (M.R.); (I.D.); (M.M.); (A.N.); (S.L.M.); (R.B.); (R.S.B.); (C.S.)
| | - Medhat Radwan
- Department of Thoracic and Cardiovascular Surgery, German Cardiac Competence Center, Eberhard-Karls-University of Tuebingen, 72076 Tübingen, Germany; (C.J.R.); (M.R.); (I.D.); (M.M.); (A.N.); (S.L.M.); (R.B.); (R.S.B.); (C.S.)
| | - Isabelle Doll
- Department of Thoracic and Cardiovascular Surgery, German Cardiac Competence Center, Eberhard-Karls-University of Tuebingen, 72076 Tübingen, Germany; (C.J.R.); (M.R.); (I.D.); (M.M.); (A.N.); (S.L.M.); (R.B.); (R.S.B.); (C.S.)
| | - Migdat Mustafi
- Department of Thoracic and Cardiovascular Surgery, German Cardiac Competence Center, Eberhard-Karls-University of Tuebingen, 72076 Tübingen, Germany; (C.J.R.); (M.R.); (I.D.); (M.M.); (A.N.); (S.L.M.); (R.B.); (R.S.B.); (C.S.)
| | - Attila Nemeth
- Department of Thoracic and Cardiovascular Surgery, German Cardiac Competence Center, Eberhard-Karls-University of Tuebingen, 72076 Tübingen, Germany; (C.J.R.); (M.R.); (I.D.); (M.M.); (A.N.); (S.L.M.); (R.B.); (R.S.B.); (C.S.)
| | - Spiros Lukas Marinos
- Department of Thoracic and Cardiovascular Surgery, German Cardiac Competence Center, Eberhard-Karls-University of Tuebingen, 72076 Tübingen, Germany; (C.J.R.); (M.R.); (I.D.); (M.M.); (A.N.); (S.L.M.); (R.B.); (R.S.B.); (C.S.)
| | - Rafal Berger
- Department of Thoracic and Cardiovascular Surgery, German Cardiac Competence Center, Eberhard-Karls-University of Tuebingen, 72076 Tübingen, Germany; (C.J.R.); (M.R.); (I.D.); (M.M.); (A.N.); (S.L.M.); (R.B.); (R.S.B.); (C.S.)
| | - Hardy Baumbach
- Independent Researcher, Roter-Stich 127, 70376 Stuttgart, Germany;
| | - Monika Zdanyte
- Department of Cardiology, German Cardiac Competence Center, Eberhard-Karls-University of Tuebingen, 72076 Tübingen, Germany;
| | - Helene Haeberle
- Department of Anesthesiology and Intensive Care Medicine, Eberhard-Karls-University of Tuebingen, 72076 Tübingen, Germany;
| | - Tulio Caldonazo
- Department of Cardiothoracic Surgery, Jena University Hospital, 07743 Jena, Germany; (T.C.); (I.S.); (T.D.)
| | - Ibrahim Saqer
- Department of Cardiothoracic Surgery, Jena University Hospital, 07743 Jena, Germany; (T.C.); (I.S.); (T.D.)
| | - Shekhar Saha
- Department of Cardiac Surgery, LMU University Hospital, 80539 Munich, Germany; (S.S.); (P.S.); (C.H.)
- German Centre for Cardiovascular Research (DZHK), Partner site Munich Heart Alliance, 80802 Munich, Germany
| | - Philipp Schnackenburg
- Department of Cardiac Surgery, LMU University Hospital, 80539 Munich, Germany; (S.S.); (P.S.); (C.H.)
- German Centre for Cardiovascular Research (DZHK), Partner site Munich Heart Alliance, 80802 Munich, Germany
| | - Ilija Djordjevic
- Department of Cardiothoracic Surgery, Heart Center, University of Cologne, 50923 Cologne, Germany; (I.D.); (I.K.); (S.W.); (E.K.); (T.W.)
| | - Ihor Krasivskyi
- Department of Cardiothoracic Surgery, Heart Center, University of Cologne, 50923 Cologne, Germany; (I.D.); (I.K.); (S.W.); (E.K.); (T.W.)
| | - Stefanie Wendt
- Department of Cardiothoracic Surgery, Heart Center, University of Cologne, 50923 Cologne, Germany; (I.D.); (I.K.); (S.W.); (E.K.); (T.W.)
| | - Elmar Kuhn
- Department of Cardiothoracic Surgery, Heart Center, University of Cologne, 50923 Cologne, Germany; (I.D.); (I.K.); (S.W.); (E.K.); (T.W.)
| | - Lina Maria Serna Higuita
- Institute for Clinical Epidemiology and Applied Biostatistics, Eberhard-Karls-University of Tuebingen, 72074 Tübingen, Germany;
| | - Torsten Doenst
- Department of Cardiothoracic Surgery, Jena University Hospital, 07743 Jena, Germany; (T.C.); (I.S.); (T.D.)
| | - Christian Hagl
- Department of Cardiac Surgery, LMU University Hospital, 80539 Munich, Germany; (S.S.); (P.S.); (C.H.)
- German Centre for Cardiovascular Research (DZHK), Partner site Munich Heart Alliance, 80802 Munich, Germany
| | - Thorsten Wahlers
- Department of Cardiothoracic Surgery, Heart Center, University of Cologne, 50923 Cologne, Germany; (I.D.); (I.K.); (S.W.); (E.K.); (T.W.)
| | - Rodrigo Sandoval Boburg
- Department of Thoracic and Cardiovascular Surgery, German Cardiac Competence Center, Eberhard-Karls-University of Tuebingen, 72076 Tübingen, Germany; (C.J.R.); (M.R.); (I.D.); (M.M.); (A.N.); (S.L.M.); (R.B.); (R.S.B.); (C.S.)
| | - Christian Schlensak
- Department of Thoracic and Cardiovascular Surgery, German Cardiac Competence Center, Eberhard-Karls-University of Tuebingen, 72076 Tübingen, Germany; (C.J.R.); (M.R.); (I.D.); (M.M.); (A.N.); (S.L.M.); (R.B.); (R.S.B.); (C.S.)
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Yao H, Qin K, Liu Y, Yang Y, Zhu J, Chen A, Wang Z, Ye X, Zhou M, Li H, Qiu J, Zhao Q, Zhu Y. CYP2C19 genotype and platelet aggregation test-guided dual antiplatelet therapy after off-pump coronary artery bypass grafting: A retrospective cohort study. Front Cardiovasc Med 2022; 9:1023004. [PMID: 36561777 PMCID: PMC9766355 DOI: 10.3389/fcvm.2022.1023004] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022] Open
Abstract
Background Dual antiplatelet therapy (DAPT) is recommended in patients undergoing off-pump coronary artery bypass graft surgery (OPCAB). Clopidogrel is less effective among patients with loss-of-function (LoF) of CYP2C19 alleles, while ticagrelor has direct effects on P2Y12 receptor. Whether a CYP2C19 genotype plus platelet aggregation test (PAgT)-guided DAPT after CABG could improve clinical outcomes remain uncertain. Materials and methods From August 2019 to December 2020, 1,134 consecutive patients who underwent OPCAB received DAPT for 1 year after surgery in Ruijin Hospital, Shanghai Jiao Tong University School of Medicine. According to the actual treatment they received in real-world, 382 (33.7%) of them received a traditional DAPT: aspirin 100 mg qd + clopidogrel 75 mg qd, no matter the CYP2C19 genotype and response in platelet aggregation test (PAgT). The other 752 (66.3%) patients received an individual DAPT based on CYP2C19 genotype and PAgT: aspirin 100 mg qd + clopidogrel 75 mg qd if CYP2C19 was extensive metabolizer, or moderate metabolizer but normal response in PAgT; aspirin 100 mg qd + ticagrelor 90 mg bid if CYP2C19 was poor metabolizer, or moderate metabolizer but no or low response in PAgT. One-year follow-up was achieved for all patients. The primary outcome was major adverse cardiovascular events (MACE), a composite of cardiovascular death, myocardial infarction, and stroke. The safety outcome was thrombolysis in myocardial infarction (TIMI) criteria major bleeding. Results Compared with the traditional DAPT group, the risk of MACE in the individual DAPT group was significantly lower (5.5 vs. 9.2%, HR 0.583; 95% CI, 0.371-0.915; P = 0.019), mainly due to the decreased risk of MI (1.7 vs. 4.2%, HR 0.407; 95% CI, 0.196-0.846; P = 0.016). The risk of TIMI major bleeding events was similar between the two groups (5.3 vs. 6.0%, RR 0.883; 95% CI, 0.537-1.453; P = 0.626). Conclusion For patients who underwent OPCAB, individual DAPT (CYP2C19 genotype plus PAgT-guided strategy) was associated with a lower risk of MACE and a similar risk of major bleeding.
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Jin L, Han X, Yu Y, Xu L, Wang H, Guo K. Intraoperative thermal insulation in off-pump coronary artery bypass grafting surgery: a prospective, double blind, randomized controlled, single-center study. Ann Transl Med 2020; 8:1220. [PMID: 33178752 PMCID: PMC7607130 DOI: 10.21037/atm-19-4571] [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] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Background About 50% patients who underwent off-pump coronary artery bypass grafting (OPCAB) experienced perioperative hypothermia. Pre-warming and intraoperative infusion of amino acid injection are the most popular perioperative insulation measures in recent years, but neither of them can completely prevent intraoperative hypothermia. The objective is to investigate the effect of preoperative warming and/or intraoperative infusion of amino acid injection on body temperature in patients undergoing OPCAB. Methods A prospective, double blind, randomized controlled, single-center study. Seventy-two patients were randomly divided into 4 groups: control group, pre-warming group, amino-acid group and multi-mode group. Pre-warming and multi-mode group were pre-heated with warming blankets and forced-air warming system before induction. After that, amino-acid and multi-mode group were infused with 18-amino acid solution. The perioperative temperature and complications were monitored. Results The temperature of control and amino-acid group decreased significantly, but amino-acid group recovered to preoperative level faster. The temperature of pre-warming group was stable, and that in multi-mode group increased at 60 min after the start of surgery. There was a significant difference in temperature at each time, and no difference in the incidence of complications between the groups. Conclusions Preoperative warming and/or intraoperative infusion of amino acid injection can effectively reduce hypothermia in OPCAB surgery. Pre-warming before anesthesia is more effective, and the combination of the two methods has the best effect.
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Affiliation(s)
- Lin Jin
- Department of Anesthesia, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaodan Han
- Department of Anesthesia, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ying Yu
- Department of Anesthesia, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Liying Xu
- Department of Anesthesia, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Huilin Wang
- Department of Anesthesia, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Kefang Guo
- Department of Anesthesia, Zhongshan Hospital, Fudan University, Shanghai, China
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Zhu P, Chen A, Wang Z, Ye X, Zhou M, Liu J, Zhao Q. Long-term outcomes of multiple and single arterial off-pump coronary artery bypass grafting. J Thorac Dis 2019; 11:909-919. [PMID: 31019780 DOI: 10.21037/jtd.2019.01.101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Background To compare the clinical outcomes between multiple arterial (MA) and single arterial (SA) off-pump coronary artery bypass grafting (OPCAB) when applied to left main coronary disease or three-vessel disease. Methods A total of 537 patients with left main coronary disease or three-vessel disease underwent MA OPCAB (n=114) or SA OPCAB (n=423) in our center from January 2006 to December 2008. The propensity score matching (PSM) was used to obtain the risk-adjusted outcome. Both the perioperative and long-term results were analyzed. Results The median follow-up time was 117 months (interquartile range, 110 to 128 months). There was no statistical difference in postoperative mortality and the volume of drainage. The intensive care unit (ICU) length of stay (LOS) of the MA group was shorter than that of the SA group {1 [1-2] vs. 2 [1-3], P=0.001). In the long term, the mortality (5.7% vs. 17.5%, P=0.006), cardiac mortality (1.0% vs. 8.8%, P=0.008), fatal myocardial infarction (MI) rate (0.0% vs. 6.1%, P=0.015) and incidence of readmission for heart failure (19.8% vs. 37.7%, P=0.003) were lower in the MA group than in the SA group. The distributions of NYHA class (P<0.001) and CCS class (P<0.001) were better in the MA group than in the SA group. There was no significant difference in other outcomes. These results were consistent with the K-M curves of freedom from the adverse events. Conclusions MA OPCAB was as safe as SA OPCAB, providing better perioperative recovery and better long-term clinical outcomes in the treatment of left main coronary disease or three-vessel disease.
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Affiliation(s)
- Pengxiong Zhu
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Anqing Chen
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Zhe Wang
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xiaofeng Ye
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Mi Zhou
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Jun Liu
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Qiang Zhao
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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Abstract
Background The efficacy and safety of off-pump coronary artery bypass grafting (OPCAB) in emergency revascularization remains controversial despite its widespread use. The aim of our study was to examine the applicability and safety of OPCAB in patients who were indicated for emergency surgery. Methods This single-center study reviewed the indication, operative data, and early and long-term outcomes of 113 patients (mean age, 67.2±9.0 years; logistic EuroSCORE, 14.3±13.5) who underwent emergency OPCAB from January 2003 to December 2014 and were followed up (94.6% completion rate) for a mean 51.1±40.3 (range, 1-135) months. Results Emergency OPCAB was associated with favorable surgical outcomes (number of distal anastomoses per patient, 3.04±0.87; internal thoracic artery (IMA) use, 98.2%; complete revascularization, 79.6%) and in-hospital outcomes (mortality, 5.3%; low cardiac output syndrome, 5.3%; stroke, 2.7%; pulmonary complications, 8.8%; renal failure, 11.5%). Only five patients (4.4%) required on-pump conversion. The 10-year outcomes were also acceptable (survival, 75.4%±5.6%; major cerebral and cardiovascular events, 52.1%±1.8%). The multivariate risk factors for late mortality were peripheral vascular disease (HR 2.95, 95% CI: 1.11-11.83), cardiogenic shock (HR 3.67, 95% CI: 1.35-9.96), and incomplete revascularization (HR 3.41, 95% CI: 1.06-14.26). When patients were separated by whether the procedure was performed early (<2010) or late (≥2010) in the study period, the late period cohort had better outcomes despite containing higher-risk patients. Conclusions Our study suggests that emergency OPCAB can be performed safely and effectively with good hospital outcomes and adequate long-term results. OPCAB strategy can be considered as a good option in emergency revascularization.
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Affiliation(s)
- Hyun-Chel Joo
- Division of Cardiovascular Surgery, Department of Thoracic and Cardiovascular Surgery, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Young-Nam Youn
- Division of Cardiovascular Surgery, Department of Thoracic and Cardiovascular Surgery, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Byung-Chul Chang
- Division of Cardiovascular Surgery, Department of Thoracic and Cardiovascular Surgery, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung-Jong Yoo
- Division of Cardiovascular Surgery, Department of Thoracic and Cardiovascular Surgery, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
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Li H, Yuan Z, Li S, Qi Q, Liu J, Zhou M, Cai J, Chen A, Wang Z, Ye X, Zhao Q. Plasma levels of matrix metalloproteinase 9 in patients undergoing off-pump coronary artery bypass grafting. J Thorac Dis 2017; 9:1100-1106. [PMID: 28523165 DOI: 10.21037/jtd.2017.03.156] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Matrix metalloproteinase 9 (MMP9) has recently emerged as a risk predictor in patients with cardiovascular diseases. However, little is known about the significance of increased plasma MMP9 in patients with perioperative myocardial injury. We aimed to investigate the role of MMP9 in the occurrence of myocardial injury during off-pump coronary artery bypass grafting (OPCAB). METHODS A total of 34 consecutive patients with coronary artery diseases (CAD) were recruited in this prospective, observational study. All patients were operated for OPCAB surgery. Serial blood samples were collected preoperatively and 12 hours after surgery. MMP9, together with cardiac troponin I (cTnI), creatinine kinase myocardial b fraction (CK-MB), C-reactive protein (CRP), and N-terminal pro B-type natriuretic peptide (NT-proBNP) levels in plasma were measured at each time-point. RESULTS MMP9 levels increased significantly at 12 hours after surgery, attaining nearly 2 times the baseline levels (P=0.0001). There was a significant correlation between preoperative (pre-OP) circulating levels of MMP9 and the left ventricular ejection fraction (LVEF) (r=0.48; P=0.004) as well as European System for Cardiac Operative Risk Evaluation (EuroSCORE) II (r=0.43; P=0.012). Patients were in New York Heart Association (NYHA) functional class III or IV heart failure showed a significantly higher MMP9 levels (1,348.0±337.2 vs. 630.4±93.0 ng/L, P=0.012) as compared to the patients in NYHA functional class I and II. No significant correlation was observed between MMP9 and age (P=0.612), serum creatinine (P=0.185), CRP (P=0.207), NT-proBNP (P=0.058). A significant correlation was observed in these data between the post-OP MMP9 and cTnI (r=0.35; P=0.003). CONCLUSIONS Our study first established a connection between MMP9 and OPCAB procedure, suggesting that MMP9 could be a novel biomarker for identifying perioperative myocardial injury in patients undergoing OPCAB.
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Affiliation(s)
- Haiqing Li
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Zhize Yuan
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Sen Li
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Quan Qi
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Jun Liu
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Mi Zhou
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Junfeng Cai
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Anqing Chen
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Zhe Wang
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Xiaofeng Ye
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Qiang Zhao
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
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