2.Antiplatelet Therapy May Be Insufficient to Prevent Stroke Recurrence Before Percutaneous Patent Foramen Ovale Closure
Hiroyuki KAWANO ; Yuko HONDA ; Takashi JOHNO ; Hibiku MARUOKA ; Kaoru NAKANISHI ; Mikito SAITO ; Kensuke OGATA ; Atsushi YAMAMICHI ; Ayane KAWATAKE ; Teruyuki HIRANO
Journal of Stroke 2023;25(2):307-310
3.Utilization of and barriers to a telemedicine system at a rural general hospital in Japan: a mixed methods study
Takahiro HIRANO ; Tadashi KOBAYASHI ; Hiroki MAITA ; Takashi AKIMOTO ; Hiroyuki KATO
Journal of Rural Medicine 2023;18(4):226-232
Objective: The initial and operational costs of telemedicine are major barriers to its adoption. We aimed to investigate and identify the barriers to adopting a telemedicine system in a Japanese rural general hospital without incurring setup and operational costs.Materials and Methods: Our study was conducted between May and August 2018, and included six general practitioners working at a rural general hospital. We extracted data collected from messages (date and time, sender and recipient, and counts and contents of messages) and conducted semi-structured interviews, which were then analyzed using quantitative and qualitative methods.Results: We quantitatively analyzed the total counted of the 179 messages. The total counts recorded for each physician were 56 (A), 20 (B), 3 (C), 74 (D), 5 (E), and 21 (F). The mean monthly counts were 2.17 (May), 8.50 (June), 11.50 (July), and 7.67 (August). Interview data from the six physicians yielded 13 codes that included various points of dissatisfaction acting as barriers to using our system, which we grouped into mental and physical barriers. Mental barriers included suspicion of carrying, feelings of isolation, and loss, whereas physical barriers included portability, user authentication, internet speed, group chat system, notice, search image, typing, chat system, print facility, and limited function.Conclusion: The representative barriers to introducing a telemedicine system at a rural general hospital in Japan without initial and running costs could be classified as feelings of isolation and suspicion of carrying (mental barriers); and notice, portability, and user authentication (physical barriers). Continued investigation in this area is warranted, and solutions to these barriers could improve the shortage of medical staff in the context of declining birth rates and aging populations in Japan.
4.Clinical practice guidelines for the management of biliary tract cancers 2019: the 3rd English edition
Masato NAGINO ; Satoshi HIRANO ; Hideyuki YOSHITOMI ; Taku AOKI ; Katsuhiko UESAKA ; Michiaki UNNO ; Tomoki EBATA ; Masaru KONISHI ; Keiji SANO ; Kazuaki SHIMADA ; Hiroaki SHIMIZU ; Ryota HIGUCHI ; Toshifumi WAKAI ; Hiroyuki ISAYAMA ; Takuji OKUSAKA ; Toshio TSUYUGUCHI ; Yoshiki HIROOKA ; Junji FURUSE ; Hiroyuki MAGUCHI ; Kojiro SUZUKI ; Hideya YAMAZAKI ; Hiroshi KIJIMA ; Akio YANAGISAWA ; Masahiro YOSHIDA ; Yukihiro YOKOYAMA ; Takashi MIZUNO ; Itaru ENDO
Chinese Journal of Digestive Surgery 2021;20(4):359-375
The Japanese Society of Hepato-Biliary-Pancreatic Surgery launched the clinical practice guidelines for the management of biliary tract cancers (cholangiocarcinoma, gallbladder cancer, and ampullary cancer) in 2007, then published the 2nd version in 2014. In this 3rd version, clinical questions (CQs) were proposed on six topics. The recommendation, grade for recommendation, and statement for each CQ were discussed and finalized by an evidence-based approach. Recommendations were graded as grade 1 (strong) or grade 2 (weak) according to the concepts of the grading of recommendations assessment, development, and evaluation system. The 31 CQs covered the six topics: (1) prophylactic treatment, (2) diagnosis, (3) biliary drainage, (4) surgical treatment, (5) chemotherapy, and (6) radiation therapy. In the 31 CQs, 14 recommendations were rated strong and 14 recommendations weak. The remaining three CQs had no recommendation. Each CQ includes a statement of how the recommendations were graded. This latest guideline provides recommendations for important clinical aspects based on evidence. Future collaboration with the cancer registry will be key for assessing the guidelines and establishing new evidence.
5.Clinical Outcomes of Biliary Drainage during a Neoadjuvant Therapy for Pancreatic Cancer: Metal versus Plastic Stents
Masaki KUWATANI ; Toru NAKAMURA ; Tsuyoshi HAYASHI ; Yasutoshi KIMURA ; Michihiro ONO ; Masayo MOTOYA ; Koji IMAI ; Keisuke YAMAKITA ; Takuma GOTO ; Kuniyuki TAKAHASHI ; Hiroyuki MAGUCHI ; Satoshi HIRANO ;
Gut and Liver 2020;14(2):269-273
Neoadjuvant chemotherapyeoadjuvant chemoradiotherapy (NAC/NACRT) can be performed in patients with pancreatic cancer to improve survival. We aimed to clarify the clinical outcomes of biliary drainage with a metal stent (MS) or a plastic stent (PS) during NAC/NACRT. Between October 2013 and April 2016, 96 patients with pancreatic cancer were registered for NAC/NACRT. Of these, 29 patients who underwent biliary drainage with MS or PS before NAC/NACRT and a subsequent pancreatoduodenectomy were retrospectively analyzed with regard to patient characteristics, preoperative recurrent biliary obstruction rate, NAC/NACRT delay or discontinuation rate, and operative characteristics. The median age of the patients was 67 years. NAC and NACRT were performed in 14 and 15 patients, respectively, and MS and PS were used in 17 and 12 patients, respectively. Recurrent biliary obstruction occurred in 6% and 83% of the patients in the MS and PS groups, respectively (p<0.001). NAC/NACRT delay was observed in 35% and 50% of the patients in the MS and PS groups, respectively (p=0.680). NAC/NACRT discontinuation was observed in 12% and 17% of the patients in the MS and PS groups, respectively (p=1.000). The operative time in the MS group tended to be longer than that in the PS group (625 minutes vs 497 minutes, p=0.051), and the operative blood loss volumes and postoperative adverse event rates were not different between the two groups. MS was better than PS from the viewpoint of preventing recurrent biliary obstruction, although MS was similar to PS with regards to perioperative outcomes.
6.Clinical Research Support in Mito Kyodo General Hospital: Current Practice and Future Problems
Sanae AOTO ; Keiko FUJIE ; Yoshio NAKATA ; Hiroyuki KOBAYASHI ; Shigeyuki WATANABE ; Atsushi HIRANO ; Koichi HASHIMOTO
Journal of the Japanese Association of Rural Medicine 2017;65(6):1177-1187
Clinical research is essential for the practice of evidence-based medicine. This study reports on our current practice of clinical research support in Mito Kyodo General Hospital and discusses future challenges. In April 2013, the University of Tsukuba hired a clinical research assistant to provide clinical research support in Mito Kyodo General Hospital. The clinical research assistant worked full-time in the hospital in collaboration with 3 university faculty members. The target population for this study comprised 450 medical personnel including doctors, nurses, and other medical staff. From April 2014, 1 of the 3 faculty members visited the hospital once a month to offer clinical research consultations and deliver a lecture on nursing research. We analyzed past records of clinical research support and conducted a questionnaire survey to explore the level of satisfaction of the medical personnel. Four-hundred and ninety records of 91 research topics proposed by 68 medical personnel were identified. Of these, 93.4% were proposed by doctors or nurses. Most studies employed an observational study design (64.8%) and were conducted in order to make a presentation at an academic conference (51.1%). The consultation sessions were held 1–5 times, for 40–405 min, and lasted from 1–84 days per research topic. Consultations mostly pertained to research design and protocol planning (57.1%). Forty-seven clients were invited to participate in the questionnaire survey, 30 of whom provided valid responses. The results showed that 96.6% of the clients were satisfied with the consultations. The number of clients who participated in the consultations comprised only 15.1% of the target population. These practice biases need to be addressed in future. However, nearly all respondents were satisfied with the consultations. These findings suggest that our clinical research support was beneficial to medical personnel.
7.Total Cholesterol Level for Assessing Pancreatic Insufficiency Due to Chronic Pancreatitis.
Kenji HIRANO ; Tomotaka SAITO ; Suguru MIZUNO ; Minoru TADA ; Naoki SASAHIRA ; Hiroyuki ISAYAMA ; Miho MATSUKAWA ; Gyotane UMEFUNE ; Dai AKIYAMA ; Kei SAITO ; Shuhei KAWAHATA ; Naminatsu TAKAHARA ; Rie UCHINO ; Tsuyoshi HAMADA ; Koji MIYABAYASHI ; Dai MOHRI ; Takashi SASAKI ; Hirofumi KOGURE ; Natsuyo YAMAMOTO ; Yosuke NAKAI ; Kazuhiko KOIKE
Gut and Liver 2014;8(5):563-568
BACKGROUND/AIMS: To determine the nutritional markers important for assessing the degree of pancreatic insufficiency due to chronic pancreatitis in routine clinical practice. METHODS: A total of 137 patients with chronic pancreatitis were followed up for more than 1 year. They were divided into two groups: a pancreatic diabetes mellitus (DM) group, consisting of 47 patients undergoing medical treatment for DM of pancreatic origin, and a nonpancreatic DM group, consisting of 90 other patients (including 86 patients without DM). Serum albumin, prealbumin, total cholesterol, cholinesterase, magnesium, and hemoglobin were compared between the two groups. RESULTS: The total cholesterol was significantly lower in the pancreatic than the nonpancreatic DM group (164 mg/dL vs 183 mg/dL, respectively; p=0.0028). Cholinesterase was significantly lower in the former group (263 U/L vs 291 U/L, respectively; p=0.016). Among the 37 patients with nonalcoholic pancreatitis, there was no difference in the cholinesterase levels between the pancreatic and nonpancreatic (296 U/L vs 304 U/L, respectively; p=0.752) DM groups, although cholesterol levels remained lower in the former (165 mg/dL vs 187 mg/dL, respectively; p=0.052). CONCLUSIONS: Cholinesterase levels are possibly affected by concomitant alcoholic liver injury. The total cholesterol level should be considered when assessing pancreatic insufficiency due to chronic pancreatitis.
Adult
;
Aged
;
Aged, 80 and over
;
Cholesterol/*blood
;
Cholinesterases/blood
;
Diabetes Mellitus, Type 2/complications
;
Exocrine Pancreatic Insufficiency/*blood/etiology
;
Female
;
Follow-Up Studies
;
Humans
;
Liver Cirrhosis, Alcoholic/blood
;
Male
;
Middle Aged
;
Nutritional Status
;
Pancreas/enzymology
;
Pancreatitis, Alcoholic/blood/complications
;
Pancreatitis, Chronic/blood/*complications
;
Serum Albumin/analysis
8.A Novel, Fully Covered Laser-Cut Nitinol Stent with Antimigration Properties for Nonresectable Distal Malignant Biliary Obstruction: A Multicenter Feasibility Study.
Hiroyuki ISAYAMA ; Kazumichi KAWAKUBO ; Yousuke NAKAI ; Kouta INOUE ; Chimyon GON ; Saburo MATSUBARA ; Hirofumi KOGURE ; Yukiko ITO ; Takeshi TSUJINO ; Suguru MIZUNO ; Tsuyoshi HAMADA ; Rie UCHINO ; Koji MIYABAYASHI ; Keisuke YAMAMOTO ; Takashi SASAKI ; Natsuyo YAMAMOTO ; Kenji HIRANO ; Naoki SASAHIRA ; Minoru TADA ; Kazuhiko KOIKE
Gut and Liver 2013;7(6):725-730
BACKGROUND/AIMS: Stent migration occurs frequently, but the prevention of complications resulting from covered self-expandable metal stents (C-SEMSs) remains unresolved. We prospectively assessed a newly developed C-SEMS, a modified covered Zeo stent (m-CZS), in terms of its antimigration effect. METHODS: Between February 2010 and January 2011, an m-CZS was inserted into 42 patients (31 initial drainage cases and 11 reintervention cases) at a tertiary referral center and three affiliated hospitals. The laser-cut stent was flared for 1.5 cm at both ends, with a 1 cm raised bank located 1 cm in from each flared end. The main outcome of this study was the rate of stent migration, and secondary outcomes were the rate of recurrent biliary obstruction (RBO), the time to RBO, the frequencies of complications, and overall survival. RESULTS: Of the 31 patients with initial drainage, stent migration occurred in four (12.9%, 95% confidence interval, 5.1% to 29.0%), with a mean time of 131 days. RBO occurred in 18 (58%), with a median time to RBO of 107 days. Following previous C-SEMS migration, seven of 10 patients (70%) did not experience m-CZS migration until death. CONCLUSIONS: m-CZSs with antimigration properties effectively, although not completely, prevented stent migration after stent insertion.
Aged
;
Aged, 80 and over
;
Alloys
;
Carcinoma/*complications
;
Cholestasis/etiology/*therapy
;
Digestive System Neoplasms/*complications
;
Drainage
;
Equipment Design
;
Feasibility Studies
;
Female
;
Humans
;
Kaplan-Meier Estimate
;
Lymphatic Metastasis
;
Male
;
Middle Aged
;
*Prosthesis Failure
;
Recurrence
;
Reoperation
;
*Stents/adverse effects
;
Time Factors
9.Simultaneous Duodenal Metal Stent Placement and EUS-Guided Choledochoduodenostomy for Unresectable Pancreatic Cancer.
Kazumichi KAWAKUBO ; Hiroyuki ISAYAMA ; Yousuke NAKAI ; Naoki SASAHIRA ; Hirofumi KOGURE ; Takashi SASAKI ; Kenji HIRANO ; Minoru TADA ; Kazuhiko KOIKE
Gut and Liver 2012;6(3):399-402
Patients with pancreatic cancer frequently suffer from both biliary and duodenal obstruction. For such patients, both biliary and duodenal self-expandable metal stent placement is necessary to palliate their symptoms, but it was difficult to cross two metal stents. Recently, endoscopic ultrasonography-guided choledochoduodenostomy (EUS-CDS) was reported to be effective for patients with an inaccessible papilla. We report two cases of pancreatic cancer with both biliary and duodenal obstructions treated successfully with simultaneous duodenal metal stent placement and EUS-CDS. The first case was a 74-year-old man with pancreatic cancer. Duodenoscopy revealed that papilla had been invaded with tumor and duodenography showed severe stenosis in the horizontal portion. After a duodenal uncovered metal stent was placed across the duodenal stricture, EUS-CDS was performed. The second case was a 63-year-old man who previously had a covered metal stent placed for malignant biliary obstruction. After removing the previously placed metal stent, EUS-CDS was performed. Then, a duodenal covered metal stent was placed across the duodenal stenosis. Both patients could tolerate a regular diet and did not suffer from stent occlusion. EUS-CDS combined with duodenal metal stent placement may be an ideal treatment strategy in patients with pancreatic cancer with both duodenal and biliary malignant obstruction.
Aged
;
Choledochostomy
;
Constriction, Pathologic
;
Diet
;
Duodenal Obstruction
;
Duodenoscopy
;
Humans
;
Middle Aged
;
Pancreatic Neoplasms
;
Stents
10.Heparin Anticoagulation during Cardiopulmonary Bypass for Thoracoabdominal Aorta Replacement in a Patient with a History of Heparin-Induced Thrombocytopenia
Masanao Ohba ; Hirokazu Murayama ; Hiroyuki Kito ; Kozo Matsuo ; Naoki Hayashida ; Souichi Asano ; Masao Hirano ; Shigeki Miyata
Japanese Journal of Cardiovascular Surgery 2010;39(3):144-147
Immune heparin-induced thrombocytopenia (HIT) is a crucial side effect of heparin therapy. We report the case of a 52-year-old man who was strongly suspected of having HIT after urgent descending aorta replacement. This case required continuous hemodiafiltration (CHDF) anticoagulated with unfractionated heparin (UFH) for acute renal failure after the operation. The patient developed thrombocytopenia and thrombus emphraxis in the circuit on the seventh day and was suspected of having HIT. UFH was ceased and replaced with argatroban. After then, thrombus emphraxis was not seen in the circuit and the platelet count was recovered promptly. He tested positive in an enzyme-linked immunosorbent assay for anti-platelet factor 4/heparin antibodies (anti-PF4/H Abs). Six months later, we found, an expanding thoracoabdominal aortic aneurysm and performed thoracoabdominal aorta replacement. We selected heparin anticoagulation for cardiopulmonary bypass because anti-PF4/H Abs were negative at that time. Thrombus emphraxis was not found during the operation. The patient developed neither thrombocytopenia nor thrombosis in the perioperative period.


Result Analysis
Print
Save
E-mail