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Higher consumption of DASH diet may lower maternal diastolic BP during pregnancy: JAHA

Written By : Medha Baranwal |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2021-01-12T09:00:29+05:30  |  Updated On 12 Jan 2021 3:09 PM IST
Higher consumption of DASH diet may lower maternal diastolic BP during pregnancy: JAHA
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Netherlands: Higher maternal consumption of DASH diet by lowers the risk of mid pregnancy diastolic blood pressure in low-risk pregnant population, suggests a recent study in the Journal of the American Heart Association. Further, it was also associated with a lower mid‐ and late pregnancy umbilical artery vascular resistance but not with uteroplacental vascular resistance, ystolic blood pressure, or the risk of gestational hypertensive disorders.

About 10% of the pregnant women are affected by gestational hypertensive disorders and are a major risk factor for neonatal and maternal mortality and morbidity. In non-pregnant women dietary intervention has been shown to be an important strategy for hypertension reduction. The Dietary Approaches to Stop Hypertension (DASH) diet is a diet high in vegetables, fruits, nuts, total grains, legumes, seeds and on‐full‐fat dairy products and low in animal protein, sugar, and sodium.

Multiple observation and intervention studies have demonstrated DASH diet to be associated with lower blood pressure and improved glucose concentrations and lipid profile in nonpregnant adult populations. Considering this, Romy Gaillard, Erasmus University Medical Center, Rotterdam, the Netherlands, and colleagues hypothesized that maternal adherence to DASH diet during pregnancy improves hemodynamic adaptations, leading to a lower risk of gestational hypertensive disorders.

For the purpose, the researchers examined the association of DASH diet score with blood pressure, placental hemodynamics, and gestational hypertensive disorders in a population‐based cohort study among 3414 Dutch women. DASH score was assessed using food-frequency questionnaires. Blood pressure was measured in early‐, mid‐, and late pregnancy (12.9, 20.4, and 30.2 weeks gestation respectively), and placental hemodynamics in mid‐ and late pregnancy (20.5, 30.4 weeks gestation respectively). Information on gestational hypertensive disorders was obtained from medical records.

Key findings of the study include:

  • Lower DASH score quartiles were associated with a higher mid pregnancy diastolic blood pressure, compared with the highest quartile.
  • No associations were present for early‐ and late pregnancy diastolic blood pressure and systolic blood pressure throughout pregnancy.
  • Compared with the highest DASH score quartile, the lower DASH score quartiles were associated with a higher mid‐ and late pregnancy umbilical artery pulsatility index but not with uterine artery resistance index.
  • No associations with gestational hypertensive disorders were present.

Researchers concluded that in a low‐risk population, maternal adherence to the Dietary Approaches to Stop Hypertension diet during pregnancy is associated with a lower mid pregnancy diastolic blood pressure and tends to be associated with improved fetoplacental vascular function.

"Further studies need to assess whether the effects of the DASH diet on gestational hemodynamic adaptations are more pronounced among higher‐risk populations," concluded the authors.

The study titled, "Associations of DASH Diet in Pregnancy With Blood Pressure Patterns, Placental Hemodynamics, and Gestational Hypertensive Disorders," is published in the Journal of the American Heart Association.

DOI: https://www.ahajournals.org/doi/full/10.1161/JAHA.120.017503


Journal of the American Heart AssociationDASH dietgestational hypertensionBPpregnancy
Source : Journal of the American Heart Association
Medha Baranwal
Medha Baranwal

    MSc. Biotechnology

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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