Abstract
Introduction
Misoprostol can be used in the prevention of gastric ulcer in treatment with diclofenac and is used in rheumatic diseases. Since misoprostol causes contractions of the uterus, it can also be used to induce abortions when administrated vaginally. The aim of the study was to investigate if early pregnancy exposure to oral diclofenac/misoprostol was associated with miscarriage.
Method
We conducted a nationwide cohort study identifying all registered pregnancies in Denmark from 1997 to 2011. All births were identified using the Medical Birth Registry, and all records of induced abortion and miscarriage were from the National Hospital Register. Data on drug use were from the National Prescription Register. Cox proportional hazard regression models were used to calculate the hazard of miscarriage in women exposed to diclofenac/misoprostol in early pregnancy.
Result
We identified 1,338,824 pregnancies (970,491 births, 142,147 miscarriages, 226,145 induced abortions). One hundred sixty-six were exposed to diclofenac/misoprostol in the early pregnancy of which 28.3 % (47) ended up in a miscarriage compared to 10.6 % among unexposed. The adjusted hazard ratio of having a miscarriage after exposure to diclofenac/misoprostol in the first trimester was 3.6 (CI 95 % 2.6–4.9).
Conclusion
We found an increased risk of miscarriage after exposure to diclofenac/misoprostol during the early pregnancy. Women in the fertile age should not be treated with the combination of diclofenac/misoprostol if other options were available.
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References
Dajani EZ (1987) Perspective on the gastric antisecretory effects of misoprostol in man. Prostaglandins 33:68–77
Graham DY, Agrawal NM, Roth SH (1988) Prevention of NSAID-induced gastric ulcer with misoprostol: multicentre, double-blind, placebo-controlled trial. Lancet 2:1277–1280
Tang OS, Gemzell-Danielsson K, Ho PC (2007) Misoprostol: pharmacokinetic profiles, effects on the uterus and side-effects. Int J Gynaecol Obstet Off Organ Int Fed Gynaecol Obstet 99(Suppl 2):S160–S167
Tang J, Kapp N, Dragoman M, de Souza JP (2013) WHO recommendations for misoprostol use for obstetric and gynecologic indications. Int J Gynaecol Obstet Off Organ Int Fed Gynaecol Obstet 121:186–189
El-Refaey H, Rajasekar D, Abdalla M, Calder L, Templeton A (1995) Induction of abortion with mifepristone (RU 486) and oral or vaginal misoprostol. N Engl J Med 332:983–987
Tanha FD, Golgachi T, Niroomand N, Ghajarzadeh M, Nasr R (2013) Sublingual versus vaginal misoprostol for second trimester termination: a randomized clinical trial. Arch Gynecol Obstet 287:65–69
Dahiya K, Ahuja K, Dhingra A, Duhan N, Nanda S (2011) Efficacy and safety of mifepristone and buccal misoprostol versus buccal misoprostol alone for medical abortion. Arch Gynecol Obstet 285:1055–1058
Pfizer Limited (2013) Summary of product characteristics arthrotec 50 tablets. https://www.medicines.org.uk/emc/medicine/10673. Accessed 26 Nov 2013
Pastuszak AL et al (1998) Use of misoprostol during pregnancy and Möbius’ syndrome in infants. N Engl J Med 338:1881–1885
Orioli IM, Castilla EE (2000) Epidemiological assessment of misoprostol teratogenicity. BJOG Int J Obstet Gynaecol 107:519–523
Vargas FR et al (2000) Prenatal exposure to misoprostol and vascular disruption defects: a case-control study. Am J Med Genet 95:302–306
Schüler L et al (1999) Pregnancy outcome after exposure to misoprostol in Brazil: a prospective, controlled study. Reprod Toxicol Elmsford N 13:147–151
Norman JE, Thong KJ, Baird DT (1991) Uterine contractility and induction of abortion in early pregnancy by misoprostol and mifepristone. Lancet 338:1233–1236
Vauzelle C, Beghin D, Cournot M-P, Elefant E (2013) Birth defects after exposure to misoprostol in the first trimester of pregnancy: prospective follow-up study. Reprod Toxicol Elmsford N 36:98–103
Watzer B, Lusthof KJ, Schweer H (2014) Abortion after deliberate Arthrotec® addition to food. Mass spectrometric detection of diclofenac, misoprostol acid, and their urinary metabolites. Int J Legal Med 129:759–769
Knudsen LB, Olsen J (1998) The Danish medical birth registry. Dan Med Bull 45:320–323
Andersen TF, Madsen M, Jørgensen J, Mellemkjoer L, Olsen JH (1999) The Danish national hospital register. A valuable source of data for modern health sciences. Dan Med Bull 46:263–268
Kristensen J, Langhoff-Roos J, Skovgaard LT, Kristensen FB (1996) Validation of the Danish birth registration. J Clin Epidemiol 49:893–897
The Danish National Board of Health (2004) Project on data quality in the National Hospital Register. The Danish National Board of Health Copenhagen, Denmark
Espersen L (2003) Law amending the Law on the inquest, autopsy and transplantation, etc. and Children Act. https://www.retsinformation.dk/forms/R0710.aspx?id=88046. Accessed 1 Sept 2015
Her Majesty Queen Margrethe II of Denmark (2004) Law amending the Law on the inquest, autopsy and transplantation, etc. and Children Act. https://www.retsinformation.dk/Forms/R0710.aspx?id=1792. Accessed 1 Sept 2015
Kildemoes HW, Sørensen HT, Hallas J (2011) The Danish national prescription registry. Scand J Public Health 39:38–41
Sørensen HT, Hansen I, Ejlersen E, Sabroe S, Hamburger H (1996) Identification of patients treated with strong analgesics: an assessment of two Danish information systems with respect to epidemiological research. J Med Syst 20:57–65
Baadsgaard M, Quitzau J (2011) Danish registers on personal income and transfer payments. Scand J Public Health 39:103–105
Jensen VM, Rasmussen AW (2011) Danish education registers. Scand J Public Health 39:91–94
Andersen JT et al (2013) Clarithromycin in early pregnancy and the risk of miscarriage and malformation: a register based nationwide cohort study. PLoS One 8:e53327
Von Elm E et al (2007) Strengthening the reporting of observational studies in epidemiology (STROBE) statement: guidelines for reporting observational studies. BMJ 335:806–808
Kalousek DK (1987) Anatomic and chromosome anomalies in specimens of early spontaneous abortion: seven-year experience. Birth Defects Orig Artic Ser 23:153–168
Philipp T, Philipp K, Reiner A, Beer F, Kalousek DK (2003) Embryoscopic and cytogenetic analysis of 233 missed abortions: factors involved in the pathogenesis of developmental defects of early failed pregnancies. Hum Reprod 18:1724–1732
Shepard TH (1995) Möbius syndrome after misoprostol: a possible teratogenic mechanism. Lancet 346:780
Gonzalez CH et al (1998) Congenital abnormalities in Brazilian children associated with misoprostol misuse in first trimester of pregnancy. Lancet 351:1624–1627
Lohse SR et al (2010) Validation of spontaneous abortion diagnoses in the Danish national registry of patients. Clin Epidemiol 2:247–250
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Andersen, J.T., Mastrogiannis, D., Andersen, N.L. et al. Diclofenac/misoprostol during early pregnancy and the risk of miscarriage: a Danish nationwide cohort study. Arch Gynecol Obstet 294, 245–250 (2016). https://doi.org/10.1007/s00404-015-3966-9
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DOI: https://doi.org/10.1007/s00404-015-3966-9