Introduction:The objective of the study was to assess cases of maternal and fetal prognosis of carbon monoxide (CO) poisoning during pregnancy at the UHC of Bordeaux. Materials and method:A retrospective and descriptive study based on observation of cases of carbon monoxide poisoning in pregnant women was conducted at the University Hospital Centre of Bordeaux which review was completed, from 01/01/2011 to 30/06/2016. Results:The incidence on 24 pregnant women of carbon monoxide poisoning upon the 248 cases reported at the centre was compiled making a rate of 9,67%. Eleven of them were fully monitored. Two patients out of the eleven were tobacco smokers. CO poisoning originated either from: fire (6/11), faulty heating appliances (4/11) or electric short circuit (1/11). Two of the seven patients presenting a COHb level in the blood had an amount of >10%. One patient had suffered with a right bundle block. Eight women out of the eleven were treated with oxygen therapy using face mask on their way to hospital. The centre systematically uses hyperbaric oxygen therapy, which dose and duration vary depending on the case and on the practitioner. Two foetus were affected with in utero growth restriction, and another one with a perinatal asphyxia. Two premature births were admitted to prenatal resuscitation. All along this investigation, no prenatal death were linked to carbon monoxide poisoning. Conclusion:Complications on the foetus resulting from that hazard are serious and unpredictable. A high rate normobaric oxygen therapy with oro-nasal mask is recommended while awaiting the hyperbaric oxygen which therapy must be systematically administered during pregnancy. Obstetrical management is considered case-by-case.

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