Eight-year follow-up of patients with immune thrombocytopenic purpura related to H. pyloriinfection

Taku Kikuchi, Takeshi Kobayashi, Takuya Yamashita, Kazuteru Ohashi, Hisashi Sakamaki, Hideki Akiyama

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


Thrombocytopenia related to Helicobacter pylori infection is a definitive subset of chronic immune thrombocytopenic purpura (ITP) but its long-term prognosis has not been evaluated extensively. The possibility of recurrence of thrombocytopenia after re-infection of H. pylori is another concern. We evaluated 8-year follow-up data for 11 patients with ITP related to H. pylori infection in a single institution. In 2001, patients with chronic ITP were evaluated for H. pylori infection at the Tokyo Metropolitan Komagome Hospital using 13C urea breath test (UBIT). Nineteen patients turned out to be positive and were treated for H. pylori infection. Platelet count 6 months after treatment revealed complete response (CR) in 10 patients and response in one patient. Eight years later, 17 of these 19 patients were re-evaluated for H. pylori infection and platelet count. Platelet counts of the 11 previous responders remained to indicate CR. Two of 13 patients re-examined by UBIT showed positive results and one of these two patients continued to keep normal platelet count. Nonetheless, the prognosis of patients who responded to eradication was excellent.

Original languageEnglish
Pages (from-to)59-62
Number of pages4
Issue number1
Publication statusPublished - 2011 Feb
Externally publishedYes


  • H. pylori
  • ITP

ASJC Scopus subject areas

  • Hematology


Dive into the research topics of 'Eight-year follow-up of patients with immune thrombocytopenic purpura related to H. pyloriinfection'. Together they form a unique fingerprint.

Cite this