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High Alt Med Biol. 2012 Jun;13(2):73-81. doi: 10.1089/ham.2012.1021.

Travel to high altitude during pregnancy: frequently asked questions and recommendations for clinicians.

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Centre Pluridisciplinaire de Diagnostic Prénatal, Centre Hospitalier Universitaire de Grenoble, France.


The effects of altitude on pregnancy have been extensively studied in high altitude residents, but there is a lack of knowledge concerning the pregnant altitude visitor. Exposure to hypoxia results in physiologic responses which act to preserve maternal and fetal oxygenation. However, these reactions are limited and maternal/fetal complications may be observed, especially in association with exercise. Certain pre-existing conditions or risk factors of hypertension/preeclampsia and/or fetal growth restriction are contra-indications for traveling to high altitude, especially after 20 weeks. The acclimatization process has to be respected to avoid acute mountain sickness without taking drugs, and at least a few days of acclimatization are required before exercising.

[Indexed for MEDLINE]

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