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Clinical characteristics of refractory thrombocytopenia secondary to systemic lupus erythematosus / 中华风湿病学杂志
Chinese Journal of Rheumatology ; (12): 170-174,c3-1, 2020.
Article in Chinese | WPRIM | ID: wpr-868196
ABSTRACT

Objective:

To explore the clinical characteristics and influencing factors of refractory lupus thrombocytopenia (RLTP) secondary to systemic lupus erythematosus (SLE).

Methods:

A retrospective analysis of 113 patients with thrombocytopenia secondary to SLE in the outpatient and inpatient Department of Rheumatology of the First Affiliated Hospital of Soochow University from January 2015 to June 2018 was carried out. The medical record and laboratory tests of patients were collected, and they were divided them into the refractory group (RLTP, n=25) and non-refractory group (NRLTP, n=88). The clinical manifestations, blood count, biochemical and immunological test of the two groups were analyzed and compared. All data were analyzed by t-test, Mann-Whitney test, χ2 test, Logistic regression analysis and Kaplan-Meier survival analysis.

Results:

Compared with NRLTP patients, RLTP patients had longer disease course [72(30, 120) months vs 38.5 (8.5, 93) months, H=-2.401, P=0.016), nervous system damage (28% vs 7%, χ2=8.58, P=0.016), higher bleeding risk [(4.6±1.7) vs (3.8±1.3), t=2.548, P=0.012] and higher mortality rate (8% vs 0, χ2=7.167, P<0.01). Meanwhile, the positive rate of anti-GPⅠb/Ⅸ in RLTP group was significantly higher than that in NRLTP group (27% vs 4%, χ2= 8.647, P<0.01). Further unconditional multivariate logistic regression analysis showed that anti-GPⅠb/Ⅸ positive was one of the main influencing factors of RLTP. Kaplan-Meier survival curve analysis revealed that the cumulative survival rate of RLTP group was significantly lower than that of NLTP group ( χ2=7.909, P<0.01).

Conclusion:

RLTP has a long course of disease, prone to nervous system impairment and positive anti-GPⅠb/Ⅸ antibody, and has a high risk of bleeding. It is necessary to identify these patients early, adjust treatment strategies and improve the prognosis of patients.
Full text: Available Index: WPRIM (Western Pacific) Type of study: Prognostic study Language: Chinese Journal: Chinese Journal of Rheumatology Year: 2020 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Prognostic study Language: Chinese Journal: Chinese Journal of Rheumatology Year: 2020 Type: Article