Assessment of pain during medical abortion with home use of misoprostol.

OBJECTIVES: Although medical abortion with home use of misoprostol has been shown to be safe and acceptable, there are few data about the experience of pain during the procedure. The aims of this study were to assess the intensity of pain associated with home use of misoprostol for medical abortion and to identify variables associated with severe pain.

METHODS: This was an observational study using an anonymous web-based questionnaire in patients having a medical abortion at home in France between 1 December 2013 and 30 April 2014.

RESULTS: The questionnaire was completed by 232 women and the results of 193 were retained for analysis. The average pain score was 5.6 on a 10 point scale. A pain score ≥6 was rated as severe and was reported by 105 patients (54%). Nulliparity (odds ratio [OR] 4.10; 95% confidence interval [CI] 2.04, 8.22; p < .0001), lack of choice regarding the method of abortion (OR 2.32; 95% CI 1.13, 4.78; p = .0218) and lack of information about the level of pain associated with the procedure (OR 3.27; 95% CI 1.09, 9.74; p = .0334) were significantly correlated with severe pain. Analgesic prescriptions were very heterogeneous.

CONCLUSIONS: Pain remains the main side effect of medical abortion. More studies are needed on pain assessment and the effectiveness of analgesic treatments in women using misoprostol at home for medical abortion, in order to improve their care and improve evidence-based guidelines.