Acquired hemophilia A associated with autoimmune pancreatitis with serum IgG4 elevation

Taisuke Narazaki, Shojiro Haji, Yasuhiro Nakashima, Yasuhiro Tsukamoto, Mariko Tsuda, Akiko Takamatsu, Hirofumi Ohno, Takamitsu Matsushima, Tomoko Matsumoto, Keiji Nogami, Midori Shima, Motoaki Shiratsuchi, Yoshihiro Ogawa

Research output: Contribution to journalArticle

Abstract

A case of acquired hemophilia A (AHA) that developed in a patient with autoimmune pancreatitis (AIP) is presented. A 64-year-old woman was diagnosed with AIP in 2007. The symptoms resolved with prednisolone (PSL). Although the dose of PSL was tapered to 7.5 mg/day for maintenance, serum IgG4 levels remained high. She suddenly presented with subcutaneous bleeding in 2015. Her activated partial thromboplastin time was prolonged (80.0 s). A mixing test showed an inhibitor pattern, factor VIII (FVIII) activity was less than 1%, and FVIII inhibitor was 290 BU/mL. She was diagnosed with AHA. Her serum IgG4 was elevated to 133 mg/dL. She was treated first with PSL alone, but she developed bladder tamponade. Cyclophosphamide and activated prothrombin complex concentrate were combined with PSL. She then achieved hemostasis, and FVIII inhibitor disappeared. FVIII inhibitor had been detected since PSL was tapered and AHA recurred two months later. An enzyme-linked immunosorbent assay showed that the inhibitor was mainly IgG4 and IgG1. This case suggests that elevation of IgG4 may be associated with the development of both AHA and AIP.

Original languageEnglish
Pages (from-to)335-338
Number of pages4
JournalInternational journal of hematology
Volume108
Issue number3
DOIs
Publication statusPublished - Sep 1 2018

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Prednisolone
Pancreatitis
Factor VIII
Immunoglobulin G
Serum
Partial Thromboplastin Time
Hemostasis
Cyclophosphamide
Urinary Bladder
Enzyme-Linked Immunosorbent Assay
Maintenance
Acquired Factor 8 deficiency
Hemorrhage

All Science Journal Classification (ASJC) codes

  • Hematology

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Acquired hemophilia A associated with autoimmune pancreatitis with serum IgG4 elevation. / Narazaki, Taisuke; Haji, Shojiro; Nakashima, Yasuhiro; Tsukamoto, Yasuhiro; Tsuda, Mariko; Takamatsu, Akiko; Ohno, Hirofumi; Matsushima, Takamitsu; Matsumoto, Tomoko; Nogami, Keiji; Shima, Midori; Shiratsuchi, Motoaki; Ogawa, Yoshihiro.

In: International journal of hematology, Vol. 108, No. 3, 01.09.2018, p. 335-338.

Research output: Contribution to journalArticle

Narazaki, T, Haji, S, Nakashima, Y, Tsukamoto, Y, Tsuda, M, Takamatsu, A, Ohno, H, Matsushima, T, Matsumoto, T, Nogami, K, Shima, M, Shiratsuchi, M & Ogawa, Y 2018, 'Acquired hemophilia A associated with autoimmune pancreatitis with serum IgG4 elevation', International journal of hematology, vol. 108, no. 3, pp. 335-338. https://doi.org/10.1007/s12185-018-2441-3
Narazaki, Taisuke ; Haji, Shojiro ; Nakashima, Yasuhiro ; Tsukamoto, Yasuhiro ; Tsuda, Mariko ; Takamatsu, Akiko ; Ohno, Hirofumi ; Matsushima, Takamitsu ; Matsumoto, Tomoko ; Nogami, Keiji ; Shima, Midori ; Shiratsuchi, Motoaki ; Ogawa, Yoshihiro. / Acquired hemophilia A associated with autoimmune pancreatitis with serum IgG4 elevation. In: International journal of hematology. 2018 ; Vol. 108, No. 3. pp. 335-338.
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