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  1. Article ; Online: Elective surgery for liver injury and misinserted tube into the inferior vena cava associated with chest tube replacement: A case report.

    Homma, Hiroshi / Uchibori, Kenichiro / Kobori, Fumimasa / Kawai, Kentaro / Azuma, Kazunari / Suzuki, Shoji / Uchida, Kotaro / Oda, Jun

    Acute medicine & surgery

    2024  Volume 11, Issue 1, Page(s) e943

    Abstract: Background: Several reports on organ injury and death due to incorrect chest tube insertion exist; however, reports on the chest tube penetrating the liver and reaching the inferior vena cava are limited.: Case presentation: A 79-year-old man ... ...

    Abstract Background: Several reports on organ injury and death due to incorrect chest tube insertion exist; however, reports on the chest tube penetrating the liver and reaching the inferior vena cava are limited.
    Case presentation: A 79-year-old man presented with a clamped tube because of massive bleeding from the tube following right chest tube replacement in the hospital of origin. The tube entered the inferior vena cava from the hepatic parenchyma via the right hepatic vein and was removed 15 h later because his hemodynamics stabilized. A ruptured pseudoaneurysm necessitated further transcatheter arterial embolism on the second hospitalization day, and the patient was transferred back to the referring hospital on day 17.
    Conclusion: Liver injury caused by an inferior vena cava misinsertion-associated chest tube can be treated with elective surgery in anticipation of the tube's tamponade effect. However, due to the risk of rebleeding, imaging follow-up is necessary soon after surgery.
    Language English
    Publishing date 2024-03-18
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2751184-4
    ISSN 2052-8817 ; 2052-8817
    ISSN (online) 2052-8817
    ISSN 2052-8817
    DOI 10.1002/ams2.943
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  2. Article ; Online: A-Site Columnar-Ordered Perovskite CaZnV

    Fukuda, Masayuki / Nishikubo, Takumi / Yu, Hongwu / Okimoto, Yoichi / Koshihara, Shin-Ya / Yamaura, Kazunari / Azuma, Masaki

    Inorganic chemistry

    2023  Volume 62, Issue 21, Page(s) 8372–8378

    Abstract: In this study, we successfully synthesized a novel A-site columnar-ordered perovskite ... ...

    Abstract In this study, we successfully synthesized a novel A-site columnar-ordered perovskite CaZnV
    Language English
    Publishing date 2023-05-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.3c00940
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  3. Article ; Online: Acute Hydrocephalus Associated with

    Sakurai, Masako / Watari, Takashi / Nakamura, Itaru / Azuma, Kazunari / Homma, Hiroshi

    European journal of case reports in internal medicine

    2022  Volume 9, Issue 11, Page(s) 3653

    Abstract: Introduction: Meningitis-related acute hydrocephalus is rare, challenging to diagnose, and has a high mortality rate.: Case description: Here we describe the case of a 76-year-old patient diagnosed with bacterial meningitis who developed acute ... ...

    Abstract Introduction: Meningitis-related acute hydrocephalus is rare, challenging to diagnose, and has a high mortality rate.
    Case description: Here we describe the case of a 76-year-old patient diagnosed with bacterial meningitis who developed acute hydrocephalus and subsequently died.
    Discussion: Although meningitis-related acute hydrocephalus is usually non-occlusive, occlusive hydrocephalus may also occur. Moreover, worsening hydrocephalus despite cerebrospinal fluid drainage should prompt a diagnosis of obstructive hydrocephalus. In such conditions, potential management strategies include ventriculoperitoneal shunt and endoscopic third ventriculostomy.
    Conclusion: In patients with meningitis-related hydrocephalus, worsening despite appropriate antibiotic administration, treatment may be complicated by ventriculitis and obstructive hydrocephalus, which can be fatal. If intracranial pressure is not medically controlled, bilateral decompression craniectomy should be considered as a potential management strategy.
    Learning points: The extreme rarity of obstructive hydrocephalus caused by bacterial meningitis can lead to delayed diagnosis and treatment.Ventriculoperitoneal shunt and endoscopic third ventriculostomy are the indicated management strategies for early diagnosis of obstructive hydrocephalus.Bilateral decompression craniectomy may be an option in such cases.
    Language English
    Publishing date 2022-11-22
    Publishing country Italy
    Document type Journal Article
    ISSN 2284-2594
    ISSN (online) 2284-2594
    DOI 10.12890/2022_003653
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  4. Article ; Online: Prediction of the prognosis of patients with bacteremia caused by encapsulated organisms using spleen volume: A retrospective study.

    Shimoyama, Keiichiro / Azuma, Kazunari / Nakamura, Itaru / Oda, Jun

    Acute medicine & surgery

    2021  Volume 8, Issue 1, Page(s) e698

    Abstract: Aim: The spleen plays an important role in the immune response, and patients with impaired spleen function are at risk of overwhelming post-splenectomy infection. This study investigated whether the spleen volume could predict the prognosis of patients ... ...

    Abstract Aim: The spleen plays an important role in the immune response, and patients with impaired spleen function are at risk of overwhelming post-splenectomy infection. This study investigated whether the spleen volume could predict the prognosis of patients with bacteremia caused by encapsulated organisms.
    Methods: This was a single-center, retrospective observational study at Tokyo Medical University Hospital. Twenty patients with encapsulated bacteria (
    Results: The number of patients in the survive group was 17, and that of the non-survive group was 3. The SV and SVI were smaller in the nonsurvive group than in the survive group (
    Conclusions: The SV and SVI could be used to predict the prognosis of bacteremia caused by encapsulated organisms. If the spleen volume as measured by computed tomography is small, more intensive treatment should be considered.
    Language English
    Publishing date 2021-10-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2751184-4
    ISSN 2052-8817 ; 2052-8817
    ISSN (online) 2052-8817
    ISSN 2052-8817
    DOI 10.1002/ams2.698
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  5. Article ; Online: A patient with COVID-19 and bleeding complications due to neurofibromatosis type 1 during VV-ECMO: A case report.

    Shimoyama, Keiichiro / Azuma, Kazunari / Oda, Jun

    Medicine

    2021  Volume 100, Issue 51, Page(s) e28094

    Abstract: Rationale: The many deaths from coronavirus disease (COVID-19) since 2019 have caused global concern. Effective treatment has not yet been established; supportive care is the main treatment. It has been suggested that veno-venous extracorporeal membrane ...

    Abstract Rationale: The many deaths from coronavirus disease (COVID-19) since 2019 have caused global concern. Effective treatment has not yet been established; supportive care is the main treatment. It has been suggested that veno-venous extracorporeal membrane oxygenation (VV-ECMO) may be effective in severe cases that do not respond to ventilator management.
    Patient concerns and diagnosis: We report the case of a 68-year-old woman with severe respiratory failure due to COVID-19 who was treated with VV-ECMO but suffered from bleeding complications. She presented with multiple café-au-lait lesions and neurofibromas on her skin and was diagnosed pathologically as having neurofibromatosis type 1(NF1).
    Interventions and outcomes: Although she received appropriate anticoagulation therapy with heparin at the initiation of VV-ECMO, she had 5 episodes of severe bleeding, each requiring transcatheter arterial embolization and massive transfusion. In patients with NF1, vascular fragility has been noted due to vascular infiltration of neurofibromas and degeneration of vascular structures. Therefore, the causes of frequent bleeding complications may be related to the fragility of blood vessels in patients with NF1. VV-ECMO in patients with NF1 is likely to result in frequent bleeding complications and the need for massive transfusion.
    Lesson: We propose non-anticoagulation treatment strategy for the management of VV-ECMO in patients with NF1. Especially under the COVID-19 pandemic, more careful consideration should be given to the indications for VV-ECMO in patients with NF1.
    MeSH term(s) Aged ; COVID-19/complications ; Extracorporeal Membrane Oxygenation ; Female ; Hemorrhage/complications ; Hemorrhage/drug therapy ; Humans ; Neurofibromatosis 1/complications ; Neurofibromatosis 1/therapy ; Pandemics ; Respiratory Distress Syndrome
    Language English
    Publishing date 2021-12-23
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 80184-7
    ISSN 1536-5964 ; 0025-7974
    ISSN (online) 1536-5964
    ISSN 0025-7974
    DOI 10.1097/MD.0000000000028094
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    In stock of ZB MED Cologne/Königswinter

    Ua VI Zs.171: Show issues Location:
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    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

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  6. Article ; Online: Acute Hydrocephalus Associated with Streptococcus anginosus Meningitis

    Masako Sakurai / Takashi Watari / Itaru Nakamura / Kazunari Azuma / Hiroshi Homma

    European Journal of Case Reports in Internal Medicine (2022)

    2022  

    Abstract: Introduction: Meningitis-related acute hydrocephalus is rare, challenging to diagnose, and has a high mortality rate. Case description: Here we describe the case of a 76-year-old patient diagnosed with bacterial meningitis who developed acute ... ...

    Abstract Introduction: Meningitis-related acute hydrocephalus is rare, challenging to diagnose, and has a high mortality rate. Case description: Here we describe the case of a 76-year-old patient diagnosed with bacterial meningitis who developed acute hydrocephalus and subsequently died. Discussion: Although meningitis-related acute hydrocephalus is usually non-occlusive, occlusive hydrocephalus may also occur. Moreover, worsening hydrocephalus despite cerebrospinal fluid drainage should prompt a diagnosis of obstructive hydrocephalus. In such conditions, potential management strategies include ventriculoperitoneal shunt and endoscopic third ventriculostomy. Conclusion: In patients with meningitis-related hydrocephalus, worsening despite appropriate antibiotic administration, treatment may be complicated by ventriculitis and obstructive hydrocephalus, which can be fatal. If intracranial pressure is not medically controlled, bilateral decompression craniectomy should be considered as a potential management strategy.
    Keywords acute hydrocephalus ; bacterial meningitis ; non-obstructive hydrocephalus ; obstructive hydrocephalus ; septic shock ; streptococcus anginosus ; Medicine ; R
    Language English
    Publishing date 2022-11-01T00:00:00Z
    Publisher SMC MEDIA SRL
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: A rare cause of pneumatosis intestinalis: Intestinal amyloidosis reactive to pulmonary Mycobacterium avium infection.

    Takimoto, Takayuki / Minomo, Shojiro / Azuma, Kouji / Tsuyuguchi, Kazunari / Suzuki, Katsuhiro

    International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases

    2020  Volume 97, Page(s) 329–330

    Language English
    Publishing date 2020-06-12
    Publishing country Canada
    Document type Journal Article
    ZDB-ID 1331197-9
    ISSN 1878-3511 ; 1201-9712
    ISSN (online) 1878-3511
    ISSN 1201-9712
    DOI 10.1016/j.ijid.2020.06.021
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 4516: Show issues Location:
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    Jg. 1995 - 2021: Lesesall (2.OG)
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  8. Article ; Online: Validation of Psoas Muscle Index as a predictor of successful extubation in elderly intensive care patients: a retrospective cohort study.

    Kobori, Fumimasa / Azuma, Kazunari / Mishima, Shiro / Oda, Jun

    Acute medicine & surgery

    2020  Volume 7, Issue 1, Page(s) e598

    Abstract: Aim: Extubation failure-associated factors have not been investigated in elderly patients. We hypothesized that psoas cross-sectional area, an emerging indicator of frailty, can be a predictor of extubation outcomes.: Methods: This retrospective ... ...

    Abstract Aim: Extubation failure-associated factors have not been investigated in elderly patients. We hypothesized that psoas cross-sectional area, an emerging indicator of frailty, can be a predictor of extubation outcomes.
    Methods: This retrospective study analyzed data from patients admitted between January and April 2016 at the mixed medical intensive care unit (ICU) of the Tokyo Medical University Hospital. Patients were considered eligible if aged 65 years or older, required intubation at the emergency room, and were admitted to ICU for over 24 h. Overall, 39 ICU patients were eligible and categorized into two groups: extubation success (
    Results: Both groups were comparable in terms of demographic characteristics. Psoas cross-sectional area (extubation success group, 1,776.5 ± 498.2 mm
    Conclusions: The psoas cross-sectional area and PMI can predict extubation outcomes in elderly intensive care patients.
    Language English
    Publishing date 2020-11-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2751184-4
    ISSN 2052-8817 ; 2052-8817
    ISSN (online) 2052-8817
    ISSN 2052-8817
    DOI 10.1002/ams2.598
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  9. Article ; Online: Potentially inappropriate medications at admission among elderly patients transported to a tertiary emergency medical institution in Japan.

    Aida, Kenta / Azuma, Kazunari / Mishima, Shiro / Ishii, Yuri / Suzuki, Shoji / Oda, Jun / Honma, Hiroshi

    Acute medicine & surgery

    2022  Volume 9, Issue 1, Page(s) e748

    Abstract: Aim: Potentially inappropriate medications (PIMs) have been reported to be associated with lower adherence, higher rates of adverse events, and higher health-care costs in elderly patients with high comorbidity. However, inappropriate prescribing has ... ...

    Abstract Aim: Potentially inappropriate medications (PIMs) have been reported to be associated with lower adherence, higher rates of adverse events, and higher health-care costs in elderly patients with high comorbidity. However, inappropriate prescribing has not been adequately reported in studies of patients transported to tertiary care hospitals. In this study, we investigated PIMs at the time of admission, on the basis of the prescription status of elderly patients admitted to a tertiary emergency room (ER).
    Methods: We included 316 patients (168 men and 148 women, aged 75-97 years) who were admitted to our ER from September 2018 to August 2019, whose prescriptions were available on admission. Drugs that met the Screening Tool of Older Persons' Potentially Inappropriate Prescriptions (STOPP) criteria version 2 were defined as PIMs. The primary outcome was the proportion of older adults taking at least one PIM at admission.
    Results: The proportion of patients taking PIMs at admission was 57% (
    Conclusion: We must be careful to avoid inappropriate prescribing for patients transported to tertiary care hospitals who have numerous prescriptions at the time of admission, patients who receive prescriptions from multiple medical institutions, and patients who receive prescriptions from clinics.
    Language English
    Publishing date 2022-04-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2751184-4
    ISSN 2052-8817 ; 2052-8817
    ISSN (online) 2052-8817
    ISSN 2052-8817
    DOI 10.1002/ams2.748
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  10. Article ; Online: Saving patients with out-of-hospital cardiac arrest using Impella: three case reports.

    Aida, Kenta / Azuma, Kazunari / Ishii, Yuri / Suzuki, Shoji / Oda, Jun

    Acute medicine & surgery

    2020  Volume 7, Issue 1, Page(s) e564

    Abstract: Background: The efficacy of Impella for patients with out-of-hospital cardiac arrest is unknown. We report the cases of three patients with cardiogenic out-of-hospital cardiac arrest who received hemodynamic support with Impella.: Case presentation: ... ...

    Abstract Background: The efficacy of Impella for patients with out-of-hospital cardiac arrest is unknown. We report the cases of three patients with cardiogenic out-of-hospital cardiac arrest who received hemodynamic support with Impella.
    Case presentation: Two patients, Case 2 and Case 3, received concomitant treatment with venoarterial extracorporeal membrane oxygenation and Impella. Percutaneous coronary intervention was undertaken in two patients, Case 1 and Case 3. Two patients, Case 1 and Case 3, showed favorable neurological function with the Glasgow-Pittsburgh cerebral performance and overall performance categories score of 1 at discharge.
    Conclusion: These findings suggest that Impella is effective in patients with out-of-hospital cardiac arrest. Further studies are required to understand the use of Impella for patients with out-of-hospital cardiac arrest.
    Language English
    Publishing date 2020-09-08
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2751184-4
    ISSN 2052-8817 ; 2052-8817
    ISSN (online) 2052-8817
    ISSN 2052-8817
    DOI 10.1002/ams2.564
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