期刊
BRITISH JOURNAL OF HAEMATOLOGY
卷 199, 期 1, 页码 130-142出版社
WILEY
DOI: 10.1111/bjh.18331
关键词
contraceptive agents; oestrogens; oral contraceptive; recurrence; venous thromboembolism; venous thrombosis; women
类别
资金
- Canadian Institutes of Health Research [CDT-142654]
The risk of recurrent VTE is lower in women with COC-associated VTE compared to those with unprovoked VTE.
The risk of recurrence after discontinuation of anticoagulation for a combined oral contraceptive (COC)-associated venous thromboembolism (VTE) is unclear. Therefore, we conducted a systematic review and meta-analysis to estimate the incidence of recurrent VTE among women with COC-associated VTE, unprovoked VTE and to compare the incidence of recurrent VTE between the two groups. The Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, Embase Classic +Embase and Medline ALL to July 2020 and citations from included studies were searched. Randomized controlled trials, prospective cohort studies and meta-analyses of these study types were selected. The analysis was conducted by random-effects model. Nineteen studies were identified including 1537 women [5828 person-years (PY)] with COC-associated VTE and 1974 women (7798 PY) with unprovoked VTE. Studies were at low risk of bias. The incidence rate of VTE recurrence was 1.22/100 PY [95% confidence interval (CI) 0.92-1.62, I-2 = 6%] in women with COC-associated VTE, 3.89/100 PY (95% CI 2.93-5.17, I-2 = 74%) in women with unprovoked VTE and the unadjusted incidence rate ratio was 0.34 (95% CI 0.26-0.46, I-2 = 3%). The recurrence risk in women after COC-associated VTE is low and lower than after an unprovoked VTE.
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