Abstract
ObjectiveDuring pregnancy, especially during its third trimester, most pregnant women reported respiratory discomfort (dyspnea), despite the absence of previously coexisting respiratory illnesses. The aim of this study was to determine the reason for this discomfort.Materials and methodsThe study included 24 women examined before and after childbirth. Evaluation of respiratory complains was made on the basis of the respiratory questionnaire of St. George's Hospital. The data were correlated with the results of static and dynamic spirometric tests performed before and after childbirth.ResultsPregnancy did not affect vital capacity (VC). Frequency of perceived symptoms correlated positively with IRV and the ratio IC/VC. A negative correlation was found between ERV and its derivative ERV/VC. There was no relationship between perceived discomfort and parameters of the flow-volume loop.ConclusionsThe extent of perceived respiratory discomfort (dyspnea) during pregnancy was primarily associated with a reduction in expiratory reserve (ERV).
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