1
|
Nash TR, Hosgood GL, Appelgrein C. Esophageal pH-monitoring in nonbrachycephalic dogs; a reference. Vet Surg 2024; 53:45-53. [PMID: 37706596 DOI: 10.1111/vsu.14020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/30/2023] [Accepted: 08/13/2023] [Indexed: 09/15/2023]
Abstract
OBJECTIVE To establish parameters that describe acidic gastroesophageal reflux (GER) events in nonbrachycephalic, hospitalized dogs without gastrointestinal disease following short total intravenous anesthesia, to establish upper reference limits for parameters that describe GER. STUDY DESIGN Clinical prospective study. ANIMALS Healthy, client-owned dogs presenting for elective orthopedic surgery. METHODS Dogs were sedated with IM methadone (0.2 mg/kg) and medetomidine (5 ug/kg), followed by alfaxalone total intravenous anesthesia. The Digitrapper esophageal dual pH monitoring probe was placed transnasally into the esophagus. Dogs were unsedated during the subsequent recording period. A GER event was defined as esophageal pH less than 4.0. Parameters that described GER were: (1) number of GER events per hour, and (2) cumulative esophageal acid exposure (percentage of recording duration) at each sensor. Upper reference limits were calculated for each parameter. RESULTS Thirty-five dogs were included (median age 7 years, range 1-12). The median recording duration was 21.1 h (range 13.6-29.3). Productive regurgitation was not noted in any dog. The median number of distal and proximal GER events per hour was 0.3 (range 0-4.3) and 0 (range 0-1), respectively. The median cumulative distal and proximal esophageal acid exposure was 0.2% (range 0.3-9%) and 0% (range 0%-1%), respectively. CONCLUSION Upper reference limits for distal and proximal GER per hour was 2.4 and 0.4, respectively, and, for cumulative distal and proximal esophageal acid exposure, 2.3% and 0%, respectively. CLINICAL SIGNIFICANCE Dogs undergoing esophageal pH monitoring in a similar hospital setting with parameters above these upper reference limits have excessive GER.
Collapse
|
2
|
Hu JN, Chen SF, Jia XY, Luo Y, Xing XB, Tan ND, Zhang MY, Zhuang QJ, Wang JH, Xiao YL. Two-year outcomes of anti-reflux mucosectomy in treating gastroesophageal reflux disease: A Chinese prospective cohort study. J Dig Dis 2023; 24:611-618. [PMID: 37915286 DOI: 10.1111/1751-2980.13238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 10/28/2023] [Accepted: 10/31/2023] [Indexed: 11/03/2023]
Abstract
OBJECTIVES Anti-reflux mucosectomy (ARMS) is an emerging and promising endoscopic treatment for gastroesophageal reflux disease (GERD). In the current study we aimed to evaluate the safety and efficacy of ARMS in treating Chinese GERD patients. METHODS This was a single-center prospective cohort study. ARMS was performed in GERD patients by an experienced endoscopist. The patients were required to undergo symptom assessment as well as endoscopic examination, high-resolution manometry (HRM), and impedance-pH monitoring before and after ARMS. RESULTS Twelve patients were enrolled. Follow-up was completed by all patients at 3 and 6 months, 11 patients at 1 year, and 8 patients at 2 years after ARMS, respectively. Symptom improvement was achieved in 66.7%, 75.0%, 72.7%, and 50.0% of the patients at 3 months, 6 months, 1 year, and 2 years after ARMS, respectively. Postoperative dysphagia was reported by 25.0%, 25.0%, 27.3%, and 25.0% of patients at 3 months, 6 months, 1 year, and 2 years after surgery, none of whom required additional invasive treatment. All patients with preoperative esophagitis healed after ARMS. For impedance-pH monitoring parameters, number of acidic reflux episodes and the proportion of patients with acid exposure time (AET) >4.0% decreased significantly after ARMS. CONCLUSIONS ARMS was safe and effective in Chinese GERD patients. The efficacy of ARMS was not short-term and remained evident throughout the 2-year follow-up. Further multicenter studies with larger sample sizes are needed to verify our findings.
Collapse
Affiliation(s)
- Jun Nan Hu
- Department of Gastroenterology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Song Feng Chen
- Department of Gastroenterology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Xing Yu Jia
- Department of Gastroenterology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Yu Luo
- Department of Gastroenterology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Xiang Bin Xing
- Department of Gastroenterology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Nian Di Tan
- Department of Gastroenterology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Meng Yu Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Qian Jun Zhuang
- Department of Gastroenterology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Jin Hui Wang
- Department of Gastroenterology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Ying Lian Xiao
- Department of Gastroenterology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| |
Collapse
|
3
|
Wang D, Duan C, Zhang X, Xu J, Hou X, Xiang X. Mean Nocturnal Baseline Impedance and Post-reflux Swallow-induced Peristaltic Wave Index Could Identify Gastroesophageal Reflux Disease but pH-Impedance Metrics Alone Might Not Correlate With Proton Pump Inhibitor Response in Chinese Patients With Typical Reflux Symptoms. J Neurogastroenterol Motil 2022; 28:580-588. [PMID: 36250365 PMCID: PMC9577582 DOI: 10.5056/jnm21156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 12/11/2021] [Accepted: 02/14/2022] [Indexed: 11/25/2022] Open
Abstract
Background/Aims Lyon consensus differentiates acid exposure time (AET) as physiological, borderline, and pathological. Mean nocturnal baseline impedance (MNBI) and post-reflux swallow-induced peristaltic wave index (PSPWi) are believed to increase diagnostic yield of gastroesophageal reflux disease (GERD) and correlate with symptom outcome of proton pump inhibitor (PPI) treatment. We aim to explore the clinical characteristics and the correlation of pH-impedance parameters with PPI response in Chinese patients with different AET levels. Methods We retrospectively investigated 177 patients with typical reflux symptoms who received esophageal function tests. The demographics, GERD questionnaire scores, the proportion of esophagitis and PPI responders, and manometric and pH-impedance parameters were compared among patients with AET < 4%, 4-6%, and > 6%. In patients with AET ≥ 4%, manometric and pH-impedance parameters were compared between PPI responders and non-responders. Results Among 177 patients, 69 (39.0%) had AET 4-6%, and 53 (29.9%) had AET > 6%. The demographics, esophagogastric junction type, and occurrence of ineffective esophageal motility were similar between patients with AET 4-6% and > 6%, but different from AET < 4%. MNBI and PSPWi were different among different AET levels, but similar between PPI responders and non-responders in patients with AET ≥ 4%. Conclusions It is reasonable to set 4% as a threshold to define pathological AET in Chinese patients. MNBI and PSPWi could identify GERD patients, but may not correlate with PPI response of Chinese GERD patients.
Collapse
Affiliation(s)
- Dongke Wang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan 430022, China
| | - Chaofan Duan
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan 430022, China
| | - Xiaohao Zhang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan 430022, China
| | - Junying Xu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan 430022, China
| | - Xiaohua Hou
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan 430022, China
| | - Xuelian Xiang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan 430022, China
| |
Collapse
|
4
|
Xiao Y, Wu JCY, Lu CL, Tseng PH, Lin L, Hou X, Li Y, Zou D, Lv B, Xiang X, Dai N, Fang X, Chen M. Clinical practice guidelines for esophageal ambulatory reflux monitoring in Chinese adults. J Gastroenterol Hepatol 2022; 37:812-822. [PMID: 35088472 DOI: 10.1111/jgh.15785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 12/31/2021] [Accepted: 01/05/2022] [Indexed: 12/09/2022]
Abstract
Esophageal ambulatory reflux monitoring is the current gold standard for the diagnosis of gastroesophageal reflux disease (GERD). In order to facilitate standardized procedure and improve diagnostic accuracy, clinical guidelines for ambulatory esophageal reflux monitoring were developed based on thorough literature search and working group conference by experts in gastrointestinal motility. Indications, contraindications, methodology, and reporting of ambulatory esophageal reflux monitoring were discussed in these clinical guidelines.
Collapse
Affiliation(s)
- Yinglian Xiao
- Department of Gastroenterology, Sun Yat-sen University First Affiliated Hospital, Guangzhou, China
| | - Justin C Y Wu
- Institute of Digestive Disease, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Ching-Liang Lu
- Endoscopy Center for Diagnosis and Treatment, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ping-Huei Tseng
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Lin Lin
- Department of Gastroenterology, Jiangsu Province Hospital, Nanjing, China
| | - Xiaohua Hou
- Department of Gastroenterology, Union Hospital Tongji Medical College Huazhong University of Science and Technology, Wuhan, China
| | - Yanqing Li
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, China
| | - Duowu Zou
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Bin Lv
- Department of Gastroenterology, Zhejiang Chinese Medical University First Affiliated Hospital, Hangzhou, China
| | - Xuelian Xiang
- Department of Gastroenterology, Union Hospital Tongji Medical College Huazhong University of Science and Technology, Wuhan, China
| | - Ning Dai
- Department of Gastroenterology, Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Hangzhou, China
| | - Xiucai Fang
- Department of Gastroenterology, Peking Union Medical College Hospital, Beijing, China
| | - Minhu Chen
- Department of Gastroenterology, Sun Yat-sen University First Affiliated Hospital, Guangzhou, China
| |
Collapse
|
5
|
Xiao YL. Gastroesophageal reflux disease: When East meets West. J Dig Dis 2022; 23:192-195. [PMID: 35195924 DOI: 10.1111/1751-2980.13090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 02/20/2022] [Indexed: 12/11/2022]
Abstract
Gastroesophageal reflux disease (GERD) is common worldwide and poses a huge challenge to health. Consensuses and guidelines on the diagnosis and management of GERD in China and the USA have recently been updated. The divergence between these guidelines indicates the differences in the conception of this disease by experts in different countries, and is influenced by available medications and interventional procedures. Prompt endoscopy has been advocated in China due to a high prevalence of upper gastrointestinal (GI) cancer, while endoscopy has been reserved for those who are at a risk of malignancy or who are reisitant to proton pump inhibitors (PPIs) in the USA. A potassium channel acid-blocker is widely used in Asian countries and has proven efficacy. Moreover, it has been recommended, together with PPIs, as a primary therapy for GERD in China; while PPI alone is recommended as a first-line treatment in the USA. Although more prokinetics are available in China than in the USA and can alleviate GERD symptoms when combined with PPI, the choice of prokinetics is limited in the USA, leading to completely opposite attitudes to prokinetics in the two countries. Novel anti-reflux procedures have been introduced in both countries. Transoral incisionless fundoplication (TIF) is recommended as an endoscopic anti-reflux procedure, and magnetic sphincter augmentation (MSA) is recognized as equivocal to conventional laparoscopic fundoplication in the USA. However, radiofrequency ablation is more popular in China, and clinical trials on TIF and MSA are not complete, which results in diverse opinions about suitable anti-reflux procedures in China. A comparison of the guidelines may therefore shed light on the multiple dimensions of GERD and thus deepen our understanding of the disease.
Collapse
Affiliation(s)
- Ying Lian Xiao
- Department of Gastroenterology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| |
Collapse
|
6
|
Xu Y, Yang W, Song Y, Cheng D, Cao M, Huang J, Ren J, Lee JW, Hueniken K, Chen Y, Brown C, Zhang Y, Qiu K, Xu W, Zhao Y, Liu G. Association of gastro-oesophageal reflux disease and quality of life in patients with chronic rhinosinusitis. ACTA OTORHINOLARYNGOLOGICA ITALICA 2021; 41:450-460. [PMID: 34734581 PMCID: PMC8569665 DOI: 10.14639/0392-100x-n1491] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 07/29/2021] [Indexed: 02/08/2023]
Abstract
Objective We determined the influence of gastro-oesophageal reflux disease (GERD) on quality of life (QOL) before and after functional-endoscopic-sinus-surgery (FESS) for chronic rhinosinusitis (CRS). Methods Medically-recalcitrant CRS patients were recruited prior to FESS. GERD was diagnosed endoscopically. QOL was compared between patients with vs without GERD at baseline and one-year post-FESS. Results Of 187 CRS patients receiving FESS, 40 had GERD. Pre-operative QOL was significantly worse in CRS patients with vs without GERD. Pre-operative GERD health-related QOL (GERD-HRQL) and reflux symptom index (RSI) scores were both correlated with pre-operative SNOT-22 scores. Compared with non-GERD CRS patients, GERD patients demonstrated larger SNOT-22 improvements after FESS, such that post-operative SNOT-22 values were no longer significantly different between GERD and non-GERD groups. However, post-FESS, in patients with CRS without nasal polyps (unlike those with nasal polyps), the GERD (vs non-GERD) group suffered from greater sleep dysfunction and otologic/facial symptoms. Conclusions Compared to CRS patients without GERD, those with GERD experienced poorer pre-operative QOL and greater QOL improvement after FESS.
Collapse
Affiliation(s)
- Yang Xu
- Department of Otorhinolaryngology Head and Neck Surgery, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China.,Medical Oncology and Medical Biophysics, Princess Margaret Cancer Centre, University of Toronto, Toronto, Ontario, Canada
| | - Wen Yang
- Department of Otorhinolaryngology Head and Neck Surgery, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China
| | - Yao Song
- Department of Otorhinolaryngology Head and Neck Surgery, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China
| | - Danni Cheng
- Department of Otorhinolaryngology Head and Neck Surgery, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China
| | - Min Cao
- General Affairs Office of Logistic Department, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jingyue Huang
- Department of Biostatistics, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Jianjun Ren
- Department of Otorhinolaryngology Head and Neck Surgery, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China.,Medical Oncology and Medical Biophysics, Princess Margaret Cancer Centre, University of Toronto, Toronto, Ontario, Canada
| | - Jong Wook Lee
- Department of Otolaryngology Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Katrina Hueniken
- Department of Biostatistics, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Yao Chen
- Department of Gastroenterology, Chengdu First People's Hospital, Chengdu, Sichuan, China
| | - Catherine Brown
- Medical Oncology and Medical Biophysics, Princess Margaret Cancer Centre, University of Toronto, Toronto, Ontario, Canada
| | - Yuke Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China
| | - Ke Qiu
- Department of Otorhinolaryngology Head and Neck Surgery, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China
| | - Wei Xu
- Department of Biostatistics, Princess Margaret Cancer Centre, Toronto, Ontario, Canada.,Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Yu Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China
| | - Geoffrey Liu
- Medical Oncology and Medical Biophysics, Princess Margaret Cancer Centre, University of Toronto, Toronto, Ontario, Canada.,Medicine and Epidemiology Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
7
|
Hoshino M, Omura N, Yano F, Tsuboi K, Yamamoto SR, Akimoto S, Masuda T, Sakashita Y, Fukushima N, Kashiwagi H. Therapeutic effect of laparoscopic fundoplication for patients with GERD from the viewpoint of Lyon Consensus. Esophagus 2021; 18:915-921. [PMID: 33891219 DOI: 10.1007/s10388-021-00843-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 04/13/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND AND OBJECTIVES The Lyon Consensus was conducted in 2017, leading to a revision of the diagnostic criteria of GERD. Conclusive GERD was defined as cases in which the distal esophageal acid exposure time (AET) is greater than 6% and there exists either peptic esophagitis, constriction, or long-segment Barrett's mucosa with a Los Angeles classification of grade C or D. Borderline GERD is defined as cases in which AET is between 4 and 6% and there exists peptic esophagitis with a Los Angeles classification of either grade A or B. All other cases were defined as Inconclusive GERD. We conducted a retrospective investigation of the treatment results of laparoscopic fundoplication (LF) for GERD according to the Lyon Consensus and evaluated whether or not it is an effective treatment predictor. MATERIALS AND METHODS From among the cases of primary LF conducted on patients with GERD-related illnesses at our university hospital from June 2008 to March 2020, the subjects included 215 individuals who underwent upper gastrointestinal endoscopy and 24 h multichannel intraluminal impedance pH (MII-pH) testing prior to surgery. We compared the pathophysiology of the Conclusive GERD Group (Group A), Borderline GERD Group (Group B), and Inconclusive GERD Group (Group C), and then investigated the treatment results of each group. We used AFP classification for pathophysiological evaluation. For the acid reflux evaluation, we conducted MII-pH measurements using Sleuth, manufactured by Sandhill. The postoperative evaluation period was set to 3 months following surgery. The data are expressed using median values, with a statistical significance defined as p < 0.05 using the Kruskal-Wallis, Mann-Whitney, Wilcoxon signed-rank, and Chi-squared tests. RESULTS Group A: 92 cases (43%, male 69 cases, age 57), Group B: 48 cases (22%, male 20 cases, age 52), and Group C: 75 cases (35%, male 69 cases, age 57). Regarding the patient backgrounds, while there were no significant differences in terms of gender or disease duration, those in Group A were significantly older than the other two groups, and there was a significant difference in Body Mass Index (BMI) between Group A and Group C. The results of each factor were: A factor (1 vs.1 vs. 1, p < 0.001), F factor (2 vs. 0 vs. 0, p < 0.001), and P factor (2 vs. 1 vs. 0, p < 0.001), with AET of 10.0 vs. 2.9 vs. 0.6, p < 0.001, and the disease had progressed more in Group A. There were also no differences in terms of surgical methods, hemorrhage volume, and intraoperative/postoperative complications; however, the use of mesh was higher and surgery duration was longer in Group A. There were obvious improvements in the A, F, and P factors and AET of each group following surgery (other than F and P of Group C, p < 0.001). The rate of recurrence was 15% in Group A, 8% in Group B, and 6% in Group C. It tended to be higher in Group A, but this was not statistically significant. CONCLUSION The classification of GERD pathophysiology based on the Lyon Consensus is satisfactory, with no significant differences in the rate of effect of LF. The Lyon Consensus is effective for ascertaining the severity and pathophysiology of GERD; however, we were unable to forecast the treatment results of LF.
Collapse
Affiliation(s)
- Masato Hoshino
- Department of Surgery, Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan.
| | - Nobuo Omura
- Department of Surgery, Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan.,Department of Surgery, National Hospital Organization Nishisaitama-Chuo National Hospital, 2-1671 Wakasa, Tokorozawa, 359-1151, Japan
| | - Fumiaki Yano
- Department of Surgery, Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Kazuto Tsuboi
- Department of Surgery, Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Se Ryung Yamamoto
- Department of Surgery, Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Shunsuke Akimoto
- Department of Surgery, Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Takahiro Masuda
- Department of Surgery, Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Yuki Sakashita
- Department of Surgery, Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Naoko Fukushima
- Department of Surgery, Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Hideyuki Kashiwagi
- Department of Surgery, Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
| |
Collapse
|