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  1. Article ; Online: Clinical Images: Hydrangea-like nephrocalcinosis in Sjögren's syndrome.

    Morishita, Shigemi / Sada, Ken-Ei

    Arthritis & rheumatology (Hoboken, N.J.)

    2023  Volume 76, Issue 2, Page(s) 318

    MeSH term(s) Humans ; Nephrocalcinosis/diagnostic imaging ; Nephrocalcinosis/etiology ; Sjogren's Syndrome/complications ; Sjogren's Syndrome/diagnostic imaging ; Hydrangea
    Language English
    Publishing date 2023-11-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2756371-6
    ISSN 2326-5205 ; 2326-5191
    ISSN (online) 2326-5205
    ISSN 2326-5191
    DOI 10.1002/art.42693
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Pulmonary alveolar proteinosis during treatment of immune-mediated necrotizing myopathy.

    Dobashi, Naofumi / Sada, Ken-Ei / Kanemori, Gen / Okada, Takuya / Tarutani, Yusuke / Yamamoto, Mako / Yabe, Moemi / Inoue, Kenshi / Imaizumi, Yasuhiko / Nishii, Masahiko / Katsurada, Masahiro / Misaki, Kenta

    International journal of rheumatic diseases

    2024  Volume 27, Issue 2, Page(s) e15080

    MeSH term(s) Humans ; Pulmonary Alveolar Proteinosis/diagnosis ; Pulmonary Alveolar Proteinosis/drug therapy ; Lung ; Autoimmune Diseases/diagnosis ; Autoimmune Diseases/drug therapy ; Myositis
    Language English
    Publishing date 2024-02-09
    Publishing country England
    Document type Letter
    ZDB-ID 2426924-4
    ISSN 1756-185X ; 1756-1841
    ISSN (online) 1756-185X
    ISSN 1756-1841
    DOI 10.1111/1756-185X.15080
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Multicentric Reticulohistiocytosis in a Patient with Hand Contracture.

    Kawabata, Tomoko / Sada, Ken-Ei / Watanabe, Haruki / Wada, Jun

    Internal medicine (Tokyo, Japan)

    2020  Volume 59, Issue 18, Page(s) 2337–2338

    Language English
    Publishing date 2020-06-09
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 32371-8
    ISSN 1349-7235 ; 0021-5120 ; 0918-2918
    ISSN (online) 1349-7235
    ISSN 0021-5120 ; 0918-2918
    DOI 10.2169/internalmedicine.4934-20
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Small Intestinal Perforation Caused by Enteric-coated Low-dose Aspirin.

    Matsubara, Shohei / Sada, Ken-Ei / Sawada, Haruo / Oida, Jiro / Tanaka, Kimiaki

    Internal medicine (Tokyo, Japan)

    2022  Volume 62, Issue 2, Page(s) 233–235

    Abstract: A 77-year-old man presented with abdominal pain for 1 week. He was taking enteric-coated low-dose aspirin (LDA) to prevent secondary cardiovascular events and a proton pump inhibitor (PPI). Computed tomography indicated a small intestinal perforation; ... ...

    Abstract A 77-year-old man presented with abdominal pain for 1 week. He was taking enteric-coated low-dose aspirin (LDA) to prevent secondary cardiovascular events and a proton pump inhibitor (PPI). Computed tomography indicated a small intestinal perforation; thus, small intestine resection was performed. Two months after surgery, he experienced a recurrence of the perforation. Since his repeated perforation was suspected to be due to LDA, LDA was discontinued. He has experienced no further recurrence since then. This is the first case of small intestinal perforation caused by enteric-coated LDA. Enteric-coated LDA may cause small intestinal perforation in patients with severe atherosclerosis under PPI administration.
    MeSH term(s) Male ; Humans ; Aged ; Intestinal Perforation/chemically induced ; Intestinal Perforation/diagnostic imaging ; Intestinal Perforation/surgery ; Aspirin/adverse effects ; Proton Pump Inhibitors/adverse effects ; Abdominal Pain
    Chemical Substances Aspirin (R16CO5Y76E) ; Proton Pump Inhibitors
    Language English
    Publishing date 2022-06-21
    Publishing country Japan
    Document type Case Reports ; Journal Article
    ZDB-ID 32371-8
    ISSN 1349-7235 ; 0021-5120 ; 0918-2918
    ISSN (online) 1349-7235
    ISSN 0021-5120 ; 0918-2918
    DOI 10.2169/internalmedicine.9681-22
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Withdrawal from Hemodialysis in a Patient with IgD Type Multiple Myeloma: A Case-based Review.

    Iriyoshi, Hiroki / Sada, Ken-Ei / Miyauchi, Atsushi / Yamamoto, Hirotaka / Hashimoto, Daisuke / Nojima, Shigeru / Yamanaka, Shingo / Kawamura, Masafumi / Oka, Satoshi

    Acta medica Okayama

    2023  Volume 77, Issue 2, Page(s) 221–225

    Abstract: Several previous case reports have shown that patients with immunoglobulin D (IgD) multiple myeloma (MM) can be withdrawn from hemodialysis, however, the characteristics that can predict withdrawal in these patients have not yet been elucidated. A 57- ... ...

    Abstract Several previous case reports have shown that patients with immunoglobulin D (IgD) multiple myeloma (MM) can be withdrawn from hemodialysis, however, the characteristics that can predict withdrawal in these patients have not yet been elucidated. A 57-year-old Japanese woman required hemodialysis because of renal dysfunction due to IgD-λ and Bence Jones protein-λ MM. Bortezomib-based chemotherapy nine days after admission led to her withdrawal from hemodialysis on Day 50. In our case-based review, younger age and early initiation of bortezomib-based chemotherapy emerged as possible predictors of successful hemodialysis withdrawal.
    MeSH term(s) Humans ; Female ; Middle Aged ; Multiple Myeloma/drug therapy ; Bortezomib/therapeutic use ; Immunoglobulin D/therapeutic use ; Renal Dialysis ; Immunoglobulin lambda-Chains
    Chemical Substances Bortezomib (69G8BD63PP) ; Immunoglobulin D ; Immunoglobulin lambda-Chains
    Language English
    Publishing date 2023-04-24
    Publishing country Japan
    Document type Case Reports
    ZDB-ID 188415-3
    ISSN 0386-300X ; 0001-6152
    ISSN 0386-300X ; 0001-6152
    DOI 10.18926/AMO/65154
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Bicarbonate concentration as a predictor of prognosis in moderately severe COVID-19 patients

    Ken-Ei Sada / Ryohei Yamamoto / Akihiko Yano / Atsushi Miyauchi / Masafumi Kawamura / Hideki Ito

    PLoS ONE, Vol 17, Iss 6, p e

    A multicenter retrospective study.

    2022  Volume 0270141

    Abstract: Background Coronavirus disease 2019 (COVID-19) patients reportedly have high bicarbonate concentration. However, its relationship to the disease progression are obscure. Methods In this two-center retrospective study, we included COVID-19 patients with ... ...

    Abstract Background Coronavirus disease 2019 (COVID-19) patients reportedly have high bicarbonate concentration. However, its relationship to the disease progression are obscure. Methods In this two-center retrospective study, we included COVID-19 patients with moderate severity between March 2020 and May 2021. We classified patients into three groups according to bicarbonate concentrations: high (>27 mEq/L), normal (21 to 27 mEq/L), and low (<21 mEq/L). The primary outcome was the time to clinical worsening defined by the requirement of intubation or death during 90 days. We evaluated high or low bicarbonate concentration during the clinical course related to the primary outcome using multivariable Cox proportional hazard models. Results Of the 60 participants (median age 72 years), 60% were men. Participants were classified into high (13 patients), normal (30 patients), and low (17 patients) groups. Clinical worsening occurred in 54% of patients in the high group, 23% in the normal group, and 65% in the low group. Both high and low groups were associated with a higher clinical worsening rate: HR, 3.02 (95% CI, 1.05 to 8.63) in the high group; 3.49 (95% CI: 1.33 to 9.12) in the low group. Conclusion Monitoring of bicarbonate concentrations may be useful to predict the prognosis.
    Keywords Medicine ; R ; Science ; Q
    Subject code 610
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Bicarbonate concentration as a predictor of prognosis in moderately severe COVID-19 patients: A multicenter retrospective study.

    Sada, Ken-Ei / Yamamoto, Ryohei / Yano, Akihiko / Miyauchi, Atsushi / Kawamura, Masafumi / Ito, Hideki

    PloS one

    2022  Volume 17, Issue 6, Page(s) e0270141

    Abstract: Background: Coronavirus disease 2019 (COVID-19) patients reportedly have high bicarbonate concentration. However, its relationship to the disease progression are obscure.: Methods: In this two-center retrospective study, we included COVID-19 patients ...

    Abstract Background: Coronavirus disease 2019 (COVID-19) patients reportedly have high bicarbonate concentration. However, its relationship to the disease progression are obscure.
    Methods: In this two-center retrospective study, we included COVID-19 patients with moderate severity between March 2020 and May 2021. We classified patients into three groups according to bicarbonate concentrations: high (>27 mEq/L), normal (21 to 27 mEq/L), and low (<21 mEq/L). The primary outcome was the time to clinical worsening defined by the requirement of intubation or death during 90 days. We evaluated high or low bicarbonate concentration during the clinical course related to the primary outcome using multivariable Cox proportional hazard models.
    Results: Of the 60 participants (median age 72 years), 60% were men. Participants were classified into high (13 patients), normal (30 patients), and low (17 patients) groups. Clinical worsening occurred in 54% of patients in the high group, 23% in the normal group, and 65% in the low group. Both high and low groups were associated with a higher clinical worsening rate: HR, 3.02 (95% CI, 1.05 to 8.63) in the high group; 3.49 (95% CI: 1.33 to 9.12) in the low group.
    Conclusion: Monitoring of bicarbonate concentrations may be useful to predict the prognosis.
    MeSH term(s) Aged ; Bicarbonates ; COVID-19 ; Female ; Humans ; Male ; Prognosis ; Proportional Hazards Models ; Retrospective Studies
    Chemical Substances Bicarbonates
    Language English
    Publishing date 2022-06-24
    Publishing country United States
    Document type Journal Article ; Multicenter Study
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0270141
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Rhabdomyolysis with Multiple Electrolyte Imbalances under Proton Pump Inhibitor Treatment after Total Thyroidectomy.

    Yano, Akihiko / Sada, Ken-Ei / Sawada, Tsutomu / Ito, Hideki / Yano, Hiroko / Ikeda, Tatsuya

    Acta medica Okayama

    2022  Volume 76, Issue 3, Page(s) 339–342

    Abstract: A 90-year-old man presented with muscle weakness, difficulty concentrating, and dysphagia. About eighteen months prior to presentation, lansoprazole had been initiated to prevent stress ulcers; he also had a history of total thyroidectomy due to ... ...

    Abstract A 90-year-old man presented with muscle weakness, difficulty concentrating, and dysphagia. About eighteen months prior to presentation, lansoprazole had been initiated to prevent stress ulcers; he also had a history of total thyroidectomy due to papillary thyroid cancer ten years prior. Laboratory findings were as follows: K 2.4 mEq/L, Ca 3.7 mg/dL, Mg 1.3 mg/dL, CK 5386 U/L, and intact PTH (iPTH) 14 pg/mL. Rhabdomyolysis with multiple electrolyte imbalances under proton pump inhibitor (PPI) treatment was diagnosed. We initiated intravenous hydration and electrolyte supplementation with discontinuation of PPI. After discontinuing PPI, the patient's serum magnesium, potassium, and calcium levels normalised with oral vitamin D and calcium supplementation. PPIs can cause hypocalcaemia and hypokalaemia via hypomagnesemia; hypocalcaemia is also a common postoperative complication of thyroidectomy. Careful monitoring of electrolyte levels is required in patients with long-term PPI treatment, especially in post-thyroidectomy cases.
    MeSH term(s) Aged, 80 and over ; Calcium ; Humans ; Hypocalcemia/drug therapy ; Hypocalcemia/etiology ; Male ; Proton Pump Inhibitors/therapeutic use ; Rhabdomyolysis ; Thyroid Neoplasms ; Thyroidectomy/adverse effects
    Chemical Substances Proton Pump Inhibitors ; Calcium (SY7Q814VUP)
    Language English
    Publishing date 2022-07-05
    Publishing country Japan
    Document type Case Reports
    ZDB-ID 188415-3
    ISSN 0386-300X ; 0001-6152
    ISSN 0386-300X ; 0001-6152
    DOI 10.18926/AMO/63745
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Survey of Japanese nephrologists' use of clinical practice guidelines for rapidly progressive glomerulonephritis.

    Takahashi-Kobayashi, Mayumi / Sada, Ken-Ei / Kawashima, Soko / Miyawaki, Yoshia / Nakazawa, Daigo / Furuichi, Kengo / Okada, Hirokazu / Narita, Ichiei / Usui, Joichi

    Clinical and experimental nephrology

    2023  Volume 28, Issue 4, Page(s) 316–324

    Abstract: Background: The guidelines in Japan for the treatment of rapidly progressive glomerulonephritis (RPGN) have been revised; the latest update was released in 2020. We investigated the actual usage of the new guidelines in Japan.: Methods: We ... ...

    Abstract Background: The guidelines in Japan for the treatment of rapidly progressive glomerulonephritis (RPGN) have been revised; the latest update was released in 2020. We investigated the actual usage of the new guidelines in Japan.
    Methods: We distributed a survey electronically to board-certified nephrologists throughout Japan from December 15, 2021 to January 31, 2022. The survey focused on anti-neutrophil cytoplasmic antibody (ANCA)-associated RPGN and anti-glomerular basement membrane (GBM)-antibody RPGN, plus the treatment strategies and infection-prevention measures used.
    Results: The survey was completed by 155 certified nephrologists from medical facilities across Japan. Their responses regarding treatment procedures revealed that ANCA-associated RPGN was treated with immunosuppressants and/or biologics by 58.1% of the survey respondents, and with plasma exchange (PE) in combination with corticosteroids by 21.3%. Regarding anti-GBM-antibody RPGN, 78.1% of the respondents used corticosteroids in combination with PE (63.2%), cyclophosphamide (CY) (23.9%), or rituximab (RTX) (8.4%), suggesting a discrepancy between clinical practice and the actual use of the guidelines. Trimethoprim-sulfamethoxazole was prescribed as prophylaxis by 94.8% of the respondents, reflecting the widespread recognition of the need to prevent infectious disease in patients with RPGN.
    Conclusions: The survey responses revealed how Japan's new RPGN guidelines are used in actual clinical practice. Our findings will contribute to the guidelines' dissemination and implementation.
    MeSH term(s) Humans ; Adrenal Cortex Hormones ; Antibodies, Antineutrophil Cytoplasmic ; Glomerulonephritis/drug therapy ; Japan ; Nephritis ; Nephrologists ; Surveys and Questionnaires ; Practice Guidelines as Topic
    Chemical Substances Adrenal Cortex Hormones ; Antibodies, Antineutrophil Cytoplasmic
    Language English
    Publishing date 2023-12-28
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 1338768-6
    ISSN 1437-7799 ; 1342-1751
    ISSN (online) 1437-7799
    ISSN 1342-1751
    DOI 10.1007/s10157-023-02441-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Infliximab biosimilar-induced lupus nephritis: A case report.

    Shidahara, Kenta / Katsuyama, Takayuki / Hirose, Kei / Matsumoto, Kazuya / Nawachi, Shoichi / Nakadoi, Takato / Asano, Yosuke / Katayama, Yu / Miyawaki, Yoshia / Katsuyama, Eri / Takano-Narazaki, Mariko / Matsumoto, Yoshinori / Sada, Ken-Ei / Wada, Jun

    Modern rheumatology case reports

    2024  Volume 8, Issue 1, Page(s) 74–76

    Abstract: We present a case of microhematuria, proteinuria and hypocomplementemia which developed in a 55-year-old female who was being treated with an infliximab biosimilar for rheumatoid arthritis. Renal biopsy showed lupus nephritis (ISN/RPS classification ... ...

    Abstract We present a case of microhematuria, proteinuria and hypocomplementemia which developed in a 55-year-old female who was being treated with an infliximab biosimilar for rheumatoid arthritis. Renal biopsy showed lupus nephritis (ISN/RPS classification class IV + V). Treatment with the infliximab biosimilar was discontinued, and treatment with prednisolone, hydroxychloroquine and abatacept was started, resulting in clinical remission of lupus nephritis and RA. Although tumour necrosis factor-α α inhibitors are known to induce production of autoantibodies, symptoms are usually limited to skin involvement or arthritis, and renal complications are rare. Physicians should be aware of the risk of lupus nephritis and carefully monitor patients for the development of renal involvement during treatment with tumour necrosis factor-α inhibitors.
    MeSH term(s) Female ; Humans ; Middle Aged ; Infliximab/adverse effects ; Lupus Nephritis/diagnosis ; Lupus Nephritis/drug therapy ; Biosimilar Pharmaceuticals/adverse effects ; Tumor Necrosis Factor-alpha ; Kidney/pathology
    Chemical Substances Infliximab (B72HH48FLU) ; Biosimilar Pharmaceuticals ; Tumor Necrosis Factor-alpha
    Language English
    Publishing date 2024-01-02
    Publishing country England
    Document type Case Reports ; Journal Article
    ISSN 2472-5625
    ISSN (online) 2472-5625
    DOI 10.1093/mrcr/rxad061
    Database MEDical Literature Analysis and Retrieval System OnLINE

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