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[Analysis of prognostic factors and efficacy of plasmapheresis in the treatment of myasthenia crisis].

AbstractOBJECTIVE:
To examine the prognostic factors and efficacy of myasthenia gravis (MG) in crisis on plasmapheresis and detect the reasons for ineffective plasmapheresis.
METHODS:
The investigators analyzed a total of 69 MG patients in crisis on plasmapheresis by case control study. Gender, age at onset of myasthenic symptoms, duration between the onset of crisis and plasmapheresis, pre-therapeutic use of glucocorticoids, pulmonary infections, other complications, nutritional status, history of thymectomy in 48 hours before crisis, thymic pathology, combined intravenous immunoglobulin (IVIG) and total sessions of plasmapheresis were measured retrospectively.
RESULTS:
Univariate analysis showed that pulmonary infections (P = 0.000, OR = 29.250), history of thymectomy in 48 hours before crisis (P = 0.046, OR = 0.267), combined intravenous immunoglobulin (P = 0.003, OR = 0.136) and total sessions of plasmapheresis (P = 0.022, OR = 0.498) were all influencing factors of plasmapheresis. However the analysis of multivariate logistic regression revealed that pulmonary infections (P = 0.000, OR = 23.600) was an independent risk factor and combined intravenous immunoglobulin (P = 0.047, OR = 0.192) was an independent protection factor of plasmapheresis.
CONCLUSION:
Plasmapheresis is ineffective in MG crisis with pulmonary infections. Control of pulmonary infections and combined intravenous immunoglobulin can improve the response to plasmapheresis in patients with MG crisis.
AuthorsHui-Yu Feng, Wei-Bin Liu, Li Qiu, Xue-Tao He, Ying Zhang, Xin Huang, Ru-Xun Huang
JournalZhonghua yi xue za zhi (Zhonghua Yi Xue Za Zhi) Vol. 90 Issue 47 Pg. 3343-6 (Dec 21 2010) ISSN: 0376-2491 [Print] China
PMID21223750 (Publication Type: English Abstract, Journal Article, Research Support, Non-U.S. Gov't)
Topics
  • Adolescent
  • Adult
  • Aged
  • Case-Control Studies
  • Female
  • Humans
  • Logistic Models
  • Male
  • Middle Aged
  • Myasthenia Gravis (diagnosis, therapy)
  • Plasmapheresis
  • Retrospective Studies
  • Treatment Outcome
  • Young Adult

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