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Results and prognostic factors of splenectomy in idiopathic thrombocytopenic purpura.

AbstractBACKGROUND:
Splenectomy is the therapy of choice after relapse following different immunosuppressive treatments for idiopathic thrombocytopenic purpura, which is still the most frequent cause of thrombocytopenia.
STUDY DESIGN:
A prospective clinical study was undertaken to evaluate the rate of complete remission in idiopathic thrombocytopenic purpura after splenectomy, to reveal the influence of preoperative immunosuppression on the postoperative course in groups of patients with different responses to treatment, and to describe possible prognostic factors predicting the postoperative course of idiopathic thrombocytopenic purpura. Difino's classification of remission was used. After fulfilling criteria for admission into the study, 72 patients who had undergone splenectomy (male to female ratio, 1:1.4) were examined.
RESULTS:
Early postoperative mortality and morbidity rates were 3 percent each. The following degrees of remission were achieved: complete remission, 72 percent; partial remission, 15 percent; partial remission affording further medical support, 6 percent; and no remission, 4 percent. Platelet counts differed significantly between complete and partial remission, but not between patients who did or did not experience a response to different preoperative medical strategies (Tukey-Kramer test, p < .05; t test, not significant). The correlation of megakaryocytopoiesis and the site of thrombocytolysis to the stages of remission was significant (Fisher's exact test). Patients with hyperplasia of splenic follicles had significantly higher platelet counts 2 years after operation than did those without hyperplastic splenic follicles (Student-Newman-Keuls test).
CONCLUSIONS:
Splenectomy is a low morbidity and low mortality procedure. It is, therefore, a treatment of choice after relapse following immunosuppressive courses. Isolated splenic thrombocytolysis and hyperplasia of megakaryocytopoiesis and of splenic follicles correlated with better postoperative outcome (ie, stable remission and platelet counts) and could serve as possible prognostic factors for the postoperative course in idiopathic thrombocytopenic purpura.
AuthorsG Winde, K W Schmid, N Lügering, R Fischer, B Brandt, T Berns, H Bünte
JournalJournal of the American College of Surgeons (J Am Coll Surg) Vol. 183 Issue 6 Pg. 565-74 (Dec 1996) ISSN: 1072-7515 [Print] United States
PMID8957458 (Publication Type: Journal Article)
Chemical References
  • Immunosuppressive Agents
Topics
  • Adolescent
  • Adult
  • Aged
  • Blood Platelets (pathology)
  • Child
  • Female
  • Humans
  • Immunosuppressive Agents (therapeutic use)
  • Male
  • Megakaryocytes (pathology)
  • Middle Aged
  • Morbidity
  • Platelet Count
  • Prognosis
  • Prospective Studies
  • Purpura, Thrombocytopenic, Idiopathic (mortality, pathology, surgery)
  • Recurrence
  • Remission Induction
  • Splenectomy

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