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  • Migraine tied to...

Migraine tied to adverse pregnancy outcomes: Study

Medha BaranwalWritten by Medha Baranwal Published On 2022-05-04T09:00:52+05:30  |  Updated On 2022-05-04T09:01:20+05:30
Migraine tied to adverse pregnancy outcomes: Study

USA: Recent data from large prospective Nurses' Health Study II showed that women with a history of migraine had higher risks of pregnancy complications (gestational hypertension, preterm delivery, and preeclampsia). Moreover, migraine with aura was tied to somewhat higher preeclampsia risk. The findings of the study were presented at the 2022 American Academy of Neurology meeting,...

USA: Recent data from large prospective Nurses' Health Study II showed that women with a history of migraine had higher risks of pregnancy complications (gestational hypertension, preterm delivery, and preeclampsia). Moreover, migraine with aura was tied to somewhat higher preeclampsia risk. 

The findings of the study were presented at the 2022 American Academy of Neurology meeting, held online and in Seattle by Alexandra Purdue-Smithe, Brigham, and Women's Hospital in Boston. 

Migraine is a neurovascular disorder that is two to three times more common in reproductive-age women than similarly aged men. Migraine and adverse pregnancy outcomes have similar pathophysiology, and both are associated with stroke and coronary heart disease. Migraine and adverse pregnancy outcomes may be linked as suggested by some case-control and retrospective studies. However, prior studies lacked information on the aura, the migraine phenotype most strongly associated with vascular risk.

Against the above background, Dr. Purdue-Smithe and colleagues aimed to longitudinally examine associations between pre-pregnancy migraine, aura phenotype, and risk of adverse pregnancy outcomes.

For this purpose, the researchers estimated self-reported physician-diagnosed pre-pregnancy migraine associations with preterm delivery (<37 weeks), gestational hypertension, gestational diabetes mellitus (GDM), preeclampsia, and low birth weight (<5.5 lbs) among incident pregnancies in the longitudinal Nurses' Health Study 2 (n=30,555; 1989-2009). Log-binomial regression that accounted for multiple pregnancies per participant was used to estimate relative risks (RR). 

The findings of the study are as follows:

  • In models adjusted for age, adiposity, and other behavioral and health factors, women with pre-pregnancy migraine (11%) exhibited higher risks of preterm delivery (RR=1.17), and gestational hypertension (RR=1.28), preeclampsia (RR=1.40) compared to women without pre-pregnancy migraine.
  • Pre-pregnancy migraine was not associated with low birth weight (RR=0.99) or GDM (RR=1.05).
  • Compared to women without pre-pregnancy migraine, the risk of preeclampsia was somewhat higher among women with migraine with aura (RR=1.51) than those with migraine without aura (RR=1.29).
  • Risks of other adverse pregnancy outcomes did not differ by aura phenotype.

"In this large, prospective study pre-pregnancy migraine was associated with higher risks of gestational hypertension, preterm delivery, and preeclampsia," wrote the authors. "Migraine with aura was associated with a somewhat higher preeclampsia risk."

"Migraine history and phenotype may be important considerations in obstetric risk assessment and management," they concluded.

Reference:

Purdue-Smithe A, et al "Pre-pregnancy migraine and risk of adverse pregnancy outcomes" AAN 2022.

pregnancy complications migraine American Academy of Neurology 
Source : 2022 American Academy of Neurology meeting
Medha Baranwal
Medha Baranwal

    MSc. Biotechnology

    Medha Baranwal joined Medical Dialogues as an Editor in 2018 for Speciality Medical Dialogues. She covers several medical specialties including Cardiac Sciences, Dentistry, Diabetes and Endo, Diagnostics, ENT, Gastroenterology, Neurosciences, and Radiology. She has completed her Bachelors in Biomedical Sciences from DU and then pursued Masters in Biotechnology from Amity University. She has a working experience of 5 years in the field of medical research writing, scientific writing, content writing, and content management. She can be contacted at  editorial@medicaldialogues.in. Contact no. 011-43720751

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