Updated on 2026/08/24

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写真a

 
Tetsuhito Masubuchi
 
Organization
YCU Medical Center Anesthesiology Lecturer
Title
Lecturer
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Degree

  • Doctor of Philosophy ( Yokohama City University )

  • 学士(医学) ( 浜松医科大学 )

Research Areas

  • Life Science / Anesthesiology

Research History

  • Yokohama City University   Medical Center Anesthesiology

    2026.4

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  • Yokohama City University   Medical Center Anesthesiology

    2025.4 - 2026.3

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  • Yokohama City University   Medical Center Anesthesiology

    2016.4 - 2025.3

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Professional Memberships

Papers

  • Enhancement of the capacity of a healthcare team through real-time information-sharing using a wireless intercom system: a prospective simulation study

    Hitoshi Sato, Daisuke Kuwabara, Kazuhiro Minoguchi, Tetsuhito Masubuchi, Miho Matsumoto, Yuka Okuyama, Hiromasa Kawakami, Takeru Abe, Kyota Nakamura, Takahisa Goto, Kazue Nakajima

    BMJ Open   16 ( 2 )   e099979 - e099979   2026.2

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    Publishing type:Research paper (scientific journal)   Publisher:BMJ  

    Objectives

    Rising patient numbers and limited resources are creating a challenging environment for healthcare providers recently. Anaesthesiologists are also increasingly faced with complex situations, requiring high adaptability in the operating room. To enhance team adaptability during emergencies, effective communication methods are essential. This study aimed to compare the impact of mobile phones and intercoms on the response time and effectiveness of anaesthesiologist teams in emergency situations.

    Design

    Prospective, observational and simulation study.

    Setting

    Anaesthesiology and Critical Care, Yokohama City University Medical Center, Yokohama, Japan.

    Participants and methods

    This study, conducted at Yokohama City University Medical Center (Yokohama, Japan), evaluated how communication methods (intercoms vs mobile phones) impact the efficiency of anaesthesiologists in the simulation setting. Two scenarios were tested: (1) retrieving a video laryngoscope during a difficult intubation and (2) gathering support during cardiac arrest.

    Primary and secondary outcome measures

    Outcomes measured included time to secure equipment, time for assistance to arrive and staff numbers gathered. The Wilcoxon signed-rank test was used to compare the outcomes between the intercom and mobile phone groups.

    Results

    In scenario 1, the time to secure the video laryngoscope was significantly shorter with intercom use compared with mobile phones (intercom vs mobile phone, median (IQR): 29 (25–33) s vs 50 (39–62) s; p=0.013, effect size 20 (95% CI 7 to 31)). In scenario 2, the time from the request for assistance until the first supporting staff member reached the operating room was significantly shorter in using the intercoms (intercom vs mobile phone, median (IQR): 16 (14–18) s vs 35 (31–38) s; p=0.04, effect size 17 (95% CI 6 to 24)), and more personnel were available in the intercom group (intercom vs mobile phone, median (IQR): 3 (3–3.5) persons vs 2 (1–2) persons; p=0.04, effect size 1.5 (95% CI 1 to 3)).

    Conclusion

    Real-time information sharing through intercoms improved the ability of the anaesthesiologist team to respond more rapidly and effectively in emergency situations, enhancing overall team adaptability. This approach may improve patients’ outcomes by shortening response times and increasing team coordination.

    DOI: 10.1136/bmjopen-2025-099979

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  • Granisetron for prevention of postoperative shivering in surgical patients: a systematic review and meta-analysis. International journal

    Tetsuhito Masubuchi, Kazuhiro Minoguchi, Hiromasa Kawakami, Takahiro Mihara, Hitoshi Sato, Takahisa Goto

    BMC anesthesiology   25 ( 1 )   469 - 469   2025.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1186/s12871-025-03348-9

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  • Effect of cerebrospinal fluid drainage pressure in descending and thoracoabdominal aortic repair: a prospective multicenter observational study.

    Kenji Yoshitani, Soshiro Ogata, Shinya Kato, Akito Tsukinaga, Tsunenori Takatani, Nobuhide Kin, Mariko Ezaka, Jun Shimizu, Yuko Furuichi, Shoichi Uezono, Kotaro Kida, Katsuhiro Seo, Shinichi Kakumoto, Hiroshi Miyawaki, Mikito Kawamata, Satoshi Tanaka, Manabu Kakinohana, Shunsuke Izumi, Hiroyuki Uchino, Takayasu Kakinuma, Kimitoshi Nishiwaki, Kazuko Hasegawa, Mishiya Matsumoto, Kazuyoshi Ishida, Atsuo Yamashita, Michiaki Yamakage, Yusuke Yoshikawa, Yuji Morimoto, Hitoshi Saito, Takahisa Goto, Tetsuhito Masubuchi, Masahiko Kawaguchi, Kosuke Tsubaki, Satoshi Mizobuchi, Norihiko Obata, Yoshimi Inagaki, Kazumi Funaki, Yoshiki Ishiguro, Masamitsu Sanui, Kazutaka Taniguchi, Kunihiro Nishimura, Yoshihiko Ohnishi

    Journal of anesthesia   37 ( 3 )   408 - 415   2023.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    PURPOSE: Cerebrospinal fluid drainage (CSFD) is recommended during open or endovascular thoracic aortic repair. However, the incidence of CSFD complications is still high. Recently, CSF pressure has been kept high to avoid complications, but the efficacy of CSFD at higher pressures has not been confirmed. We hypothesize that CSFD at higher pressures is effective for preventing motor deficits. METHODS: This prospective observational study included 14 hospitals that are members of the Japanese Society of Cardiovascular Anesthesiologists. Patients who underwent thoracic and thoracoabdominal aortic repair were divided into four groups: Group 1, CSF pressure around 10 mmHg; Group 2, CSF pressure around 15 mmHg; Group 3, CSFD initiated when motor evoked potential amplitudes decreased; and Group 4, no CSFD. We assessed the association between the CSFD group and motor deficits using mixed-effects logistic regression with a random intercept for the institution. RESULTS: Of 1072 patients in the study, 84 patients (open surgery, 51; thoracic endovascular aortic repair, 33) had motor deficits at discharge. Groups 1 and 2 were not associated with motor deficits (Group 1, odds ratio (OR): 1.53, 95% confidence interval (95% CI): 0.71-3.29, p = 0.276; Group 2, OR: 1.73, 95% CI: 0.62-4.82) when compared with Group 4. Group 3 was significantly more prone to motor deficits than Group 4 (OR: 2.56, 95% CI: 1.27-5.17, p = 0.009). CONCLUSION: CSFD is not associated with motor deficits in thoracic and thoracoabdominal aortic repair with CSF pressure around 10 or 15 mmHg.

    DOI: 10.1007/s00540-023-03179-3

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  • Transfusion characteristics and hemostatic conditions in octogenarians undergoing emergency surgery for acute aortic dissection: a retrospective study. International journal

    Tetsuhito Masubuchi, Kenji Yoshitani, Kimito Minami, Chisaki Yokoyama, Akito Tsukinaga, Takahisa Goto, Yoshihiko Ohnishi

    JA clinical reports   6 ( 1 )   52 - 52   2020.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    BACKGROUND: The number of elderly patients undergoing elective as well as emergent cardiac surgery is increasing. Octogenarian and older patients undergoing surgery for acute type A aortic dissection (AAD) have a significantly higher risk of postoperative mortality than younger patients. Hemostasis is difficult in octogenarians with AAD. However, few studies have investigated perioperative blood transfusion volumes and hemostatic conditions in patients undergoing AAD surgery. We retrospectively investigated whether these factors differed between octogenarians and younger patients with AAD. METHODS: The records of 207 patients who underwent emergency surgery for AAD were reviewed between 2008 and 2014. We compared the total volumes of transfused blood components (red blood cell concentrate, fresh frozen plasma, platelets concentrate, and cryoprecipitate), perioperative blood coagulation test results (prothrombin time-international normalized ratio, activated partial thrombin time, and activated coagulation time), and intensive care unit and hospital stay durations between octogenarians (n = 33) and patients < 80 years old (n = 170). RESULTS: A significantly greater volume of red blood cell concentrates was transfused in octogenarians than in patients < 80 years old. Isolated prolonged activated partial thromboplastin time was observed in octogenarian patients. Duration of hospital stays was significantly longer in octogenarians than in patients < 80 years old. CONCLUSIONS: Octogenarians required more red blood cells during surgery for AAD and exhibited isolated APTT prolongation.

    DOI: 10.1186/s40981-020-00358-z

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  • Accuracy and Trending Ability of the Fourth-Generation FloTrac/Vigileo System in Patients With Low Cardiac Index. International journal

    Kohshi Hattori, Takuma Maeda, Tetsuhito Masubuchi, Atsushi Yoshikawa, Keigo Ebuchi, Kuniko Morishima, Masataka Kamei, Kenji Yoshitani, Yoshihiko Ohnishi

    Journal of cardiothoracic and vascular anesthesia   31 ( 1 )   99 - 104   2017.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    OBJECTIVES: To determine the accuracy and trending ability of the fourth-generation FloTrac/Vigileo in patients with low cardiac index by comparing FloTrac/Vigileo-derived cardiac index with that measured by 3-dimensional echocardiography. DESIGN: Prospective clinical study. SETTING: Cardiac surgery operating room in a single cardiovascular center. PARTICIPANTS: Twenty-five patients undergoing elective cardiac resynchronization therapy lead implantation. INTERVENTIONS: FloTrac/Vigileo-derived cardiac index and 3-dimensional echocardiography-derived cardiac index were determined simultaneously before and after phenylephrine bolus and cardiac resynchronization therapy using 3-dimensional echocardiography-derived cardiac index as the reference method. MEASUREMENTS AND MAIN RESULTS: Cardiac index measured by the fourth-generation FloTrac/Vigileo had a wide limit of agreement with that measured by 3-dimensional echocardiography, with a percentage error of 59.1%. The tracking ability of the unit after both phenylephrine administration and cardiac resynchronization therapy were measured by concordance rate, and both were below the acceptable limit (72.7% and 85%, respectively). CONCLUSIONS: The degree of accuracy of the fourth-generation FloTrac/Vigileo in patients with low cardiac index was not acceptable, and high systemic vascular resistance in patients with low cardiac index may have contributed to this inaccuracy. The tracking ability of the fourth-generation FloTrac/Vigileo after phenylephrine administration or cardiac resynchronization therapy was below acceptable limits.

    DOI: 10.1053/j.jvca.2016.06.016

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