文献一覧: Masaru Suzuki (著者)

9 0 0 0 OA Feasibility and Safety of Hydrogen Gas Inhalation for Post-Cardiac Arrest Syndrome – First-in-Human Pilot Study –

著者: Tomoyoshi Tamura Kei Hayashida Motoaki Sano Masaru Suzuki Takayuki Shibusawa Joe Yoshizawa Yosuke Kobayashi Takeshi Suzuki Shigeo Ohta Hiroshi Morisaki Keiichi Fukuda Shingo Hori
出版者: 日本循環器学会
雑誌: Circulation Journal (ISSN:13469843)
巻号頁・発行日: vol.80, no.8, pp.1870-1873, 2016-07-25 (Released:2016-07-25)
参考文献数: 5
被引用文献数: 55

Background:Hydrogen gas inhalation (HI) ameliorates cerebral and cardiac dysfunction in animal models of post-cardiac arrest syndrome (PCAS). HI for human patients with PCAS has never been studied.Methods and Results:Between January 2014 and January 2015, 21 of 107 patients with out-of-hospital cardiac arrest achieved spontaneous return of circulation. After excluding 16 patients with specific criteria, 5 patients underwent HI together with target temperature management (TTM). No undesirable effects attributable to HI were observed and 4 patients survived 90 days with a favorable neurological outcome.Conclusions:HI in combination with TTM is a feasible therapy for patients with PCAS. (Circ J 2016; 80: 1870–1873)

2020-11-28 04:32:45
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6 0 0 0 OA Sudden Death Phenomenon While Bathing in Japan ― Mortality Data ―

著者: Masaru Suzuki Takuro Shimbo Toshiharu Ikaga Shingo Hori
出版者: 日本循環器学会
雑誌: Circulation Journal (ISSN:13469843)
巻号頁・発行日: pp.CJ-16-1066, (Released:2017-04-08)
参考文献数: 15
被引用文献数: 23

Background:Bath-related sudden cardiac arrest frequently occurs in Japan, but the mortality data have not been sufficiently reported.Methods and Results:This prospective cross-sectional observational study was conducted in the Tokyo Metropolis, Saga Prefecture and Yamagata Prefecture between October 2012 and March 2013 (i.e., in winter). We investigated the data for all occurrences in these areas for which the emergency medical system needed to be activated because of an accident or acute illness related to bathing. Emergency personnel enrolled the event when activation of the emergency medical system was related to bathing. Of the 4,599 registered bath-related events, 1,527 (33%) were identified as bath-related cardiac arrest events. Crude mortality (no. deaths per 100,000) during the observational period was 10.0 in Tokyo, 11.6 in Yamagata and 8.5 in Saga. According to the mortality data for age and sex, the estimated number of bath-related deaths nationwide was 13,369 in winter, for the 6 months from October (95% CI: 10,862–16,887). Most cardiac arrest events occurred in tubs filled with water with the face submerged in the water. This suggests that drowning plays a crucial role in the etiology of such phenomena.Conclusions:The estimated nationwide number of deaths was 13,369 (95% CI: 10,862–16,887) in winter, for the 6 months from October. Crude mortality during the winter season was 10.0 in Tokyo, 11.6 in Yamagata and 8.5 in Saga.

2017-04-10 12:45:16
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5 0 0 0 OA Sudden Death Phenomenon While Bathing in Japan ― Mortality Data ―

著者: Masaru Suzuki Takuro Shimbo Toshiharu Ikaga Shingo Hori
出版者: The Japanese Circulation Society
雑誌: Circulation Journal (ISSN:13469843)
巻号頁・発行日: vol.81, no.8, pp.1144-1149, 2017-07-25 (Released:2017-07-25)
参考文献数: 15
被引用文献数: 18 23

2023-03-04 06:30:28
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3 0 0 0 OA Incidence and Characteristics of Bath-related Accidents

著者: Masaru Suzuki Takuro Shimbo Toshiharu Ikaga Shingo Hori
出版者: The Japanese Society of Internal Medicine
雑誌: Internal Medicine (ISSN:09182918)
巻号頁・発行日: pp.0825-18, (Released:2018-08-24)
参考文献数: 14
被引用文献数: 4 11

Objectives Bath-related sudden cardiac arrests frequently occur in Japan. This study aimed to describe the actual incidence and characteristics of bath-related accidents, including non-fatal events, and to establish the etiology of bath-related sudden cardiac arrest. Methods This prospective cross-sectional observational study was conducted in Tokyo Metropolis and Saga and Yamagata Prefectures between October 2012 and March 2013. Emergency personnel enrolled events in this study when they recognized that activation of the emergency medical system was related to bathing. Surveillance cards were delivered and collected from the emergency personnel and attending physicians. Results In total, 4,593 events were enrolled (1,528 cardiac arrests, 935 survivors in need of help, 1,553 patients with acute illnesses, and 577 patients with injuries) in this study. In the group of survivors in need of help and with acute illness, consciousness disturbance and lethargy without any organic disease were recognized as the main symptoms. Acute coronary syndrome and stroke were infrequently diagnosed. Of the survivors, 30% had a body temperature above 38°C. Their consciousness level significantly correlated with their body temperature. Emergency personnel reported that 79% of sudden cardiac arrests were from victims whose faces were submerged in the tub water, while 18% of survivors had their faces submerged in the tub water. Conclusions This study revealed that accidents, including non-lethal events, frequently occur. The key symptoms were consciousness disturbance and lethargy characterized as a functional disorder and accompanied by an elevated body temperature. Those findings suggest that heat illness during hot water immersion causes drowning.

2021-07-20 23:47:40
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2 0 0 0 OA Delayed-onset Organizing Pneumonia Emerging after Recovery from Coronavirus Disease 2019: A Report of Three Cases Diagnosed Using Transbronchial Cryobiopsy and a Review of the Literature

著者: Sho Nakakubo Keisuke Kamada Yu Yamashita Junichi Nakamura Munehiro Matsumoto Hiroshi Horii Kazuki Sato Daisuke Morinaga Masaru Suzuki Nanase Okazaki Emi Takakuwa Yoshihiro Matsuno Satoshi Konno
出版者: The Japanese Society of Internal Medicine
雑誌: Internal Medicine (ISSN:09182918)
巻号頁・発行日: pp.9016-21, (Released:2022-03-05)
参考文献数: 22
被引用文献数: 3

We present three cases with an atypical clinical course of organizing pneumonia (OP) secondary to COVID-19. Three patients were discharged with satisfactory improvement after standard steroid therapy for COVID-19. Shortly after the completion of treatment, the patients experienced a flare-up of symptoms. Imaging results showed new lesions in the lungs. Transbronchial lung cryobiopsy showed histological findings consistent with OP in all cases. Steroids were administered, and a good therapeutic response was observed. This report is the first to describe pathologically confirmed OP that developed after recovery from COVID-19. Careful follow-up is advisable for patients who have recovered from COVID-19.

2022-09-12 12:03:38
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1 0 0 0 OA Incidence and Characteristics of Bath-related Accidents

著者: Masaru Suzuki Takuro Shimbo Toshiharu Ikaga Shingo Hori
出版者: The Japanese Society of Internal Medicine
雑誌: Internal Medicine (ISSN:09182918)
巻号頁・発行日: vol.58, no.1, pp.53-62, 2019-01-01 (Released:2019-01-01)
参考文献数: 14
被引用文献数: 8 11

Objective Bath-related sudden cardiac arrests frequently occur in Japan. This study aimed to describe the actual incidence and characteristics of bath-related accidents, including non-fatal events, and to establish the etiology of bath-related sudden cardiac arrest. Methods This prospective cross-sectional observational study was conducted in Tokyo Metropolis and Saga and Yamagata Prefectures between October 2012 and March 2013. Emergency personnel enrolled events in this study when they recognized that activation of the emergency medical system was related to bathing. Surveillance cards were delivered and collected from the emergency personnel and attending physicians. Results In total, 4,593 events were enrolled (1,528 cardiac arrests, 935 survivors in need of help, 1,553 patients with acute illnesses, and 577 patients with injuries) in this study. In the group of survivors in need of help and with acute illness, consciousness disturbance and lethargy without any organic disease were recognized as the main symptoms. Acute coronary syndrome and stroke were infrequently diagnosed. Of the survivors, 30% had a body temperature above 38°C. Their consciousness level significantly correlated with their body temperature. Emergency personnel reported that 79% of sudden cardiac arrests were from victims whose faces were submerged in the tub water, while 18% of survivors had their faces submerged in the tub water. Conclusion This study revealed that accidents, including non-lethal events, frequently occur. The key symptoms were consciousness disturbance and lethargy characterized as a functional disorder and accompanied by an elevated body temperature. Those findings suggest that heat illness during hot water immersion causes drowning.

2023-12-01 01:16:24
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1 0 0 0 OA An Adult Case of Unilateral Left Pulmonary Artery Agenesis Presenting with Hemoptysis

著者: Yuriko Ishida Masaru Suzuki Hiroshi Horii Junichi Nakamura Munehiro Matsumoto Sho Nakakubo Takahiro Sato Ichizo Tsujino Ryo Morita Daisuke Abo Satoshi Konno
出版者: The Japanese Society of Internal Medicine
雑誌: Internal Medicine (ISSN:09182918)
巻号頁・発行日: pp.0015-22, (Released:2022-07-22)
参考文献数: 23
被引用文献数: 1

Pulmonary artery agenesis (PAA) is a rare congenital vascular anomaly usually diagnosed during infancy. We herein report a 67-year-old man with PAA manifesting as massive hemoptysis. Contrast-enhanced computed tomography of the chest revealed the diagnosis of PAA, which we speculated to have resulted in the present event. Detailed angiography provided more accurate information on the pulmonary vasculature and collateral circulation, which helped us plan tailored treatment. Although very rare, we must consider the possibility of PAA in adults with unexplained hemoptysis.

2022-08-03 14:18:03
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1 0 0 0 Logger Attaching System for Sperm Whales Using a Drone

著者: Ryota Murakami Takumi Toyoshima Daichi Furusawa Masaru Suzuki Kazunari Masumoto Sho Owada Yuichi Tsumaki Kyoichi Mori
出版者: Fuji Technology Press Ltd.
雑誌: Journal of Robotics and Mechatronics (ISSN:09153942)
巻号頁・発行日: vol.33, no.3, pp.475-483, 2021-06-20 (Released:2021-06-20)
参考文献数: 16
被引用文献数: 3

The biologging approach of attaching a logger to the body of an animal provides information that cannot be obtained by conventional direct visual observation. Marine zoologists have used this technique for observing sperm whales preying on giant squids in the deep sea. However, it is almost impossible to capture a sperm whale to attach a logger, because of its large size. Therefore, researchers have used a long pole to attach a logger from a ship to the back of sperm whales. Unfortunately, this method is risky and requires a skilled team. In this paper, we propose a logger attaching system using a drone to solve this problem. The proposed method can be trained on land; thus, it is relatively easy to train a team, and the mobility of the drone can shorten the installation time. Several pieces of equipment developed for the proposed method are described in detail. Furthermore, field experiments were performed with sperm whales to confirm the feasibility of the system. A suction cup of the seventh prototype of the whale rover was adsorbed onto the back of a sperm whale. Although a complete installation was not possible, it was demonstrated that operation was possible in a short time using the proposed method.

2021-06-29 02:06:51
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1 0 0 0 OA The Effects of Hydrogen Gas Inhalation on Adverse Left Ventricular Remodeling After Percutaneous Coronary Intervention for ST-Elevated Myocardial Infarction ― First Pilot Study in Humans ―

著者: Yoshinori Katsumata Fumiya Sano Takayuki Abe Tomoyoshi Tamura Taishi Fujisawa Yasuyuki Shiraishi Shun Kohsaka Ikuko Ueda Koichiro Homma Masaru Suzuki Shigeo Okuda Yuichiro Maekawa Eiji Kobayashi Shingo Hori Junichi Sasaki Keiichi Fukuda Motoaki Sano
出版者: The Japanese Circulation Society
雑誌: Circulation Journal (ISSN:13469843)
巻号頁・発行日: vol.81, no.7, pp.940-947, 2017-06-23 (Released:2017-06-23)
参考文献数: 28
被引用文献数: 18 49

Background:Hydrogen gas inhalation (HI) reduced infarct size and mitigated adverse left ventricular (LV) remodeling in a rat model of acute myocardial infarction (AMI). We designed a prospective, open-label, rater-blinded clinical pilot study in patients experiencing ST-elevated MI (STEMI).Methods and Results:The 20 patients with an initial diagnosis of STEMI were assigned to either an HI group (1.3% H2with 26% oxygen) or a control group (26% oxygen). There were no HI-related severe adverse events. In the full analysis set, the cardiac salvage index as evaluated using cardiac magnetic resonance imaging at 7 days after primary percutaneous coronary intervention (PCI), showed no significant between-group difference (HI: 50.0±24.3%; control: 60.1±20.1%; P=0.43). However, the improvement from day 7 in the HI group was numerically greater than that in the control group in some of the surrogate outcomes at 6-month follow-up, including the LV stroke volume index (HI: 9.2±7.1 mL/m2; control: −1.4±7.2 mL/m2; P=0.03) and the LV ejection fraction (HI: 11.0%±9.3%; control: 1.7%±8.3%; P=0.11).Conclusions:The first clinical study has shown that HI during PCI is feasible and safe and may also promote LV reverse remodeling at 6 months after STEMI. The study was not powered to test efficacy and a further large-scale trial is warranted. (Clinical trials registration: UMIN00006825)

2021-02-22 22:19:46
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