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  1. Article ; Online: In Response.

    Iwasaki, Yudai / Ohbe, Hiroyuki / Yamauchi, Masanori / Yasunaga, Hideo

    Anesthesia and analgesia

    2024  Volume 138, Issue 4, Page(s) e18–e19

    Language English
    Publishing date 2024-03-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80032-6
    ISSN 1526-7598 ; 0003-2999
    ISSN (online) 1526-7598
    ISSN 0003-2999
    DOI 10.1213/ANE.0000000000006914
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    Uk I Zs.78: Show issues Location:
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  2. Article: Ultrasound-assisted insertion of a small-diameter thoracic catheter for acute dorsal empyema.

    Hasegawa, Yudai / Okazaki, Akihito / Iwasaki, Kazuhiko

    Clinical case reports

    2024  Volume 12, Issue 3, Page(s) e8576

    Abstract: Key clinical message: Ultrasound-assisted small catheter placement may be considered in cases where computed tomography guidance is unavailable, and ultrasound can identify pleural effusions clearly, even in cases where empyema is localized solely on ... ...

    Abstract Key clinical message: Ultrasound-assisted small catheter placement may be considered in cases where computed tomography guidance is unavailable, and ultrasound can identify pleural effusions clearly, even in cases where empyema is localized solely on the dorsal side.
    Abstract: Thoracic catheter insertion for empyema can be challenging when the pleural effusion is localized dorsally and computed tomography guidance is unavailable. We report the case of a 40-year-old man with acute dorsal bacterial empyema who underwent successful ultrasound-assisted catheter placement in an orthopneic position.
    Language English
    Publishing date 2024-03-03
    Publishing country England
    Document type Case Reports
    ZDB-ID 2740234-4
    ISSN 2050-0904
    ISSN 2050-0904
    DOI 10.1002/ccr3.8576
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Undifferentiated Thyroid Carcinoma Caused Sudden Airway Obstruction.

    Iwasaki, Yudai

    The western journal of emergency medicine

    2015  Volume 16, Issue 7, Page(s) 1208–1209

    MeSH term(s) Aged, 80 and over ; Airway Obstruction/etiology ; Dyspnea/etiology ; Fatal Outcome ; Female ; Humans ; Intubation, Intratracheal ; Thyroid Neoplasms/complications ; Thyroid Neoplasms/diagnosis ; Tomography, X-Ray Computed
    Language English
    Publishing date 2015-12
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 2375700-0
    ISSN 1936-9018 ; 1936-900X
    ISSN (online) 1936-9018
    ISSN 1936-900X
    DOI 10.5811/westjem.2015.10.28836
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  4. Article ; Online: Undifferentiated Thyroid Carcinoma Caused Sudden Airway Obstruction

    Yudai Iwasaki

    Western Journal of Emergency Medicine, Vol 16, Iss 7, Pp 1208-

    2015  Volume 1209

    Keywords Medicine ; R ; Medical emergencies. Critical care. Intensive care. First aid ; RC86-88.9
    Language English
    Publishing date 2015-12-01T00:00:00Z
    Publisher eScholarship Publishing, University of California
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Traumatic retropharyngeal-posterior mediastinal hematoma following a motor vehicle accident.

    Furukawa, Taku / Iwasaki, Yudai / Otsuka, Yuji / Moriya, Takashi / Sanui, Masamitsu

    Acute medicine & surgery

    2021  Volume 8, Issue 1, Page(s) e632

    Language English
    Publishing date 2021-02-06
    Publishing country United States
    Document type Journal Article
    ISSN 2052-8817
    ISSN (online) 2052-8817
    DOI 10.1002/ams2.632
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  6. Article ; Online: Aortic valve replacement in a 41-year-old woman with uncorrected tetralogy of Fallot, pulmonary atresia, and major aortopulmonary collateral arteries: a case report.

    Saito, Kazutomo / Iwasaki, Yudai / Tasaki, Takahiro / Saito, Hidehisa / Toyama, Hiroaki / Ejima, Yutaka / Yamauchi, Masanori

    JA clinical reports

    2023  Volume 9, Issue 1, Page(s) 86

    Abstract: Background: Tetralogy of Fallot (TOF) is a complex cyanotic congenital heart disease. As most patients with TOF undergo palliative or radical surgical repair during childhood, cardiac surgery under cardiopulmonary bypass (CPB) for adult survivors with ... ...

    Abstract Background: Tetralogy of Fallot (TOF) is a complex cyanotic congenital heart disease. As most patients with TOF undergo palliative or radical surgical repair during childhood, cardiac surgery under cardiopulmonary bypass (CPB) for adult survivors with unrepaired TOF is exceedingly rare.
    Case presentation: A 41-year-old woman with unrepaired TOF, pulmonary atresia (PA), and major aortopulmonary collateral arteries (MAPCAs) developed acute infectious endocarditis (IE). As vegetation gradually increased despite intravenous antibiotic administration, she was scheduled for urgent aortic valve replacement under CPB. Pulmonary blood flow was primarily provided by the MAPCAs originating from the descending aorta. Intra-aortic balloon occlusion for MAPCAs was performed to ensure a bloodless surgical field. Aortic valve replacement was successful.
    Conclusion: An adult with uncorrected TOF developed acute IE and subsequently had successful cardiac surgery under CPB. Understanding TOF physiology with PA and MAPCAs, particularly pulmonary blood flow through MAPCAs, is crucial.
    Language English
    Publishing date 2023-12-06
    Publishing country Germany
    Document type Journal Article
    ISSN 2363-9024
    ISSN (online) 2363-9024
    DOI 10.1186/s40981-023-00674-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Concomitant severe traumatic brain injury is not associated with increased red blood cell transfusion volumes in patients with pelvic fractures: A retrospective observational study.

    Hirano, Takaki / Yamada, Kohei / Terayama, Takero / Iwasaki, Yudai / Yamamoto, Ryohei / Shinohara, Kazuaki

    Injury

    2023  Volume 55, Issue 3, Page(s) 111296

    Abstract: Introduction: Traumatic brain injury (TBI)-associated coagulopathy significantly influences survival outcomes in patients with multiple injuries. Severe TBI can potentially affect systemic hemostasis due to coagulopathy; however, there is limited ... ...

    Abstract Introduction: Traumatic brain injury (TBI)-associated coagulopathy significantly influences survival outcomes in patients with multiple injuries. Severe TBI can potentially affect systemic hemostasis due to coagulopathy; however, there is limited evidence regarding whether the risk of hemorrhage increases in patients with pelvic fractures complicated with TBI. Therefore, through multivariable analysis, we aimed to examine the association between severe TBI and increased blood transfusion requirements in patients with pelvic fractures.
    Materials and methods: This retrospective observational study was conducted at a tertiary care facility in Japan. Patients aged 16 years or older with pelvic fractures who were admitted to our intensive care unit between April 2014 and December 2021 were included in the analysis. The patients were categorized into no to mild and severe TBI groups according to whether the Head Abbreviated Injury Scale (AIS) score was 3 or higher. The primary outcome was the number of red blood cell (RBC) units transfused within 24 h after arrival at the hospital. The primary outcome was analyzed using univariable and multivariable linear regression analyses. The covariates used for the multivariable linear regression analysis were age, sex, antithrombotic therapy, mechanism of injury, Pelvic AIS score, and extravasation on contrast-enhanced computed tomography on admission.
    Results: We identified 315 eligible patients (221 and 94 in the no to mild and severe TBI groups, respectively). In the univariable analysis, the RBC transfusion volume within 24 h after arrival was significantly higher in the severe TBI group than in the no to mild TBI group (2.53-unit increase; 95 % confidence interval [CI]: 0.46-4.61). However, in the multivariable analysis, no statistically significant association was detected between severe TBI and the RBC transfusion volume within 24 h after arrival at the hospital (0.87-unit increase; 95 % CI: -1.11-2.85).
    Conclusions: Concomitant severe TBI was not associated with increased RBC transfusion volumes in patients with pelvic fractures on multivariable analysis.
    MeSH term(s) Humans ; Erythrocyte Transfusion/adverse effects ; Brain Injuries, Traumatic/complications ; Brain Injuries, Traumatic/therapy ; Blood Transfusion ; Brain Injuries ; Blood Coagulation Disorders/etiology ; Fractures, Bone/complications ; Fractures, Bone/therapy ; Retrospective Studies
    Language English
    Publishing date 2023-12-25
    Publishing country Netherlands
    Document type Observational Study ; Journal Article
    ZDB-ID 218778-4
    ISSN 1879-0267 ; 0020-1383
    ISSN (online) 1879-0267
    ISSN 0020-1383
    DOI 10.1016/j.injury.2023.111296
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Zs.A 778: Show issues Location:
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    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)
    Zs.MO 10: Show issues

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  8. Article ; Online: Long-Term Incidence and Timing of Splenic Pseudoaneurysm Formation after Blunt Splenic Injury: A Descriptive Study.

    Hirano, Takaki / Iwasaki, Yudai / Ono, Yuko / Ishida, Tokiya / Shinohara, Kazuaki

    Annals of vascular surgery

    2022  

    Abstract: Background: Nonoperative management (NOM) has become a standard strategy for hemodynamically stable patients with blunt splenic injury; however, delayed rupture of splenic pseudoaneurysm (SPA) is a serious complication of NOM. In medical literature, ... ...

    Abstract Background: Nonoperative management (NOM) has become a standard strategy for hemodynamically stable patients with blunt splenic injury; however, delayed rupture of splenic pseudoaneurysm (SPA) is a serious complication of NOM. In medical literature, data regarding the long-term incidence of SPA are scarce, and the appropriate timing for performing follow-up contrast-enhanced computed tomography (CT) has not yet been reported. This study aimed to elucidate the long-term incidence and timing of SPA formation after blunt splenic injury in patients treated with NOM.
    Methods: This descriptive study was conducted at a tertiary medical center in Japan. Patients with blunt splenic injury who were treated with NOM between April 2014 and August 2020 were included in the analysis. Included patients underwent repeated contrast-enhanced CT to detect SPA formation. The primary outcome was the cumulative incidence of delayed formation of SPA. We also evaluated differences in SPA formation between patients who received transcatheter arterial embolization (TAE; TAE group) and those who did not receive it (non-TAE group) on admission day.
    Results: Among 49 patients with blunt splenic injury who were treated with NOM, 5 patients (10.2%) had delayed formation of SPA. All cases of SPA formation occurred within 15 days of injury. The incidence of SPA formation was not significantly different between the TAE and non-TAE groups (1/19 vs. 4/30, P = 0.67).
    Conclusions: SPA developed in 10% of patients within approximately 2 weeks after blunt splenic injury. Therefore, performing follow-up contrast-enhanced CT in this period after injury may be useful to evaluate delayed formation of SPA. Although our findings are novel, they should be confirmed through future studies with larger sample sizes.
    Language English
    Publishing date 2022-07-09
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1027366-9
    ISSN 1615-5947 ; 0890-5096
    ISSN (online) 1615-5947
    ISSN 0890-5096
    DOI 10.1016/j.avsg.2022.06.010
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    Zs.A 2882: Show issues Location:
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  9. Article ; Online: Is It a Real Obesity Paradox?

    Watanabe, Jun / Aita, Tetsuro / Saito, Kohei / Iwasaki, Yudai / Fujieda, Takeshi / Yoshioka, Takashi

    Chest

    2021  Volume 160, Issue 2, Page(s) e247–e248

    MeSH term(s) Body Mass Index ; Humans ; Obesity/complications ; Obesity/epidemiology
    Language English
    Publishing date 2021-08-09
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 1032552-9
    ISSN 1931-3543 ; 0012-3692
    ISSN (online) 1931-3543
    ISSN 0012-3692
    DOI 10.1016/j.chest.2021.03.037
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    Ui III Zs.45: Show issues Location:
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  10. Article ; Online: Man With Blunt Abdominal Trauma.

    Iwasaki, Yudai / Inokuchi, Ryota / Shinohara, Kazuaki

    Annals of emergency medicine

    2017  Volume 70, Issue 5, Page(s) e45–e46

    Language English
    Publishing date 2017-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 603080-4
    ISSN 1097-6760 ; 0196-0644
    ISSN (online) 1097-6760
    ISSN 0196-0644
    DOI 10.1016/j.annemergmed.2017.05.030
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