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Pulmonary function in advanced uncomplicated singleton and twin pregnancy.

Siddiqui AH, Tauheed N, Ahmad A, Mohsin Z - J Bras Pneumol (2014 May-Jun)

Bottom Line: Respiratory function was assessed in 50 women with twin pregnancies and in 50 women with singleton pregnancies (during the third trimester in both groups), as well as in 50 non-pregnant women.We found no significant differences between women with twin pregnancies and those with singleton pregnancies, in terms of respiratory function.Despite its higher physiological demands, twin pregnancy does not appear to impair respiratory function to any greater degree than does singleton pregnancy.

View Article: PubMed Central - PubMed

Affiliation: Department of Physiology, Jawaharlal Nehru Medical College, Aligarh, India.

ABSTRACT

Objective: Pregnancy brings about significant changes in respiratory function, as evidenced by alterations in lung volumes and capacities, which are attributable to the mechanical impediment caused by the growing foetus. This study was undertaken in order to identify changes in respiratory function during normal pregnancy and to determine whether such changes are more pronounced in twin pregnancy than in singleton pregnancy.

Methods: Respiratory function was assessed in 50 women with twin pregnancies and in 50 women with singleton pregnancies (during the third trimester in both groups), as well as in 50 non-pregnant women. We measured the following pulmonary function test parameters: FVC; FEV1; PEF rate; FEV1/FVC ratio; FEF25-75%; and maximal voluntary ventilation.

Results: All respiratory parameters except the FEV1/FVC ratio were found to be lower in the pregnant women than in the non-pregnant women. We found no significant differences between women with twin pregnancies and those with singleton pregnancies, in terms of respiratory function.

Conclusions: Despite its higher physiological demands, twin pregnancy does not appear to impair respiratory function to any greater degree than does singleton pregnancy.

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Comparison of pulmonary function parameters among the three groupsevaluated.
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f01: Comparison of pulmonary function parameters among the three groupsevaluated.

Mentions: In the present study, the values for all PFT parameters were lower among the pregnantwomen (both groups) than among the non-pregnant women (Table 3). Comparisons between various group pairings (Table 4) showed that all of the PFT parameters, with the exceptionof the FEV1/FVC ratio and MVV, were significantly lower for the pregnantwomen (twin or singleton pregnancy) than for the non-pregnant women. The MVV values werealso lower among the pregnant women, although the difference was not significant. As canbe seen in Figure 1, there were no significantdifferences in lung function between the twin and singleton pregnancy groups.


Pulmonary function in advanced uncomplicated singleton and twin pregnancy.

Siddiqui AH, Tauheed N, Ahmad A, Mohsin Z - J Bras Pneumol (2014 May-Jun)

Comparison of pulmonary function parameters among the three groupsevaluated.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4109196&req=5

f01: Comparison of pulmonary function parameters among the three groupsevaluated.
Mentions: In the present study, the values for all PFT parameters were lower among the pregnantwomen (both groups) than among the non-pregnant women (Table 3). Comparisons between various group pairings (Table 4) showed that all of the PFT parameters, with the exceptionof the FEV1/FVC ratio and MVV, were significantly lower for the pregnantwomen (twin or singleton pregnancy) than for the non-pregnant women. The MVV values werealso lower among the pregnant women, although the difference was not significant. As canbe seen in Figure 1, there were no significantdifferences in lung function between the twin and singleton pregnancy groups.

Bottom Line: Respiratory function was assessed in 50 women with twin pregnancies and in 50 women with singleton pregnancies (during the third trimester in both groups), as well as in 50 non-pregnant women.We found no significant differences between women with twin pregnancies and those with singleton pregnancies, in terms of respiratory function.Despite its higher physiological demands, twin pregnancy does not appear to impair respiratory function to any greater degree than does singleton pregnancy.

View Article: PubMed Central - PubMed

Affiliation: Department of Physiology, Jawaharlal Nehru Medical College, Aligarh, India.

ABSTRACT

Objective: Pregnancy brings about significant changes in respiratory function, as evidenced by alterations in lung volumes and capacities, which are attributable to the mechanical impediment caused by the growing foetus. This study was undertaken in order to identify changes in respiratory function during normal pregnancy and to determine whether such changes are more pronounced in twin pregnancy than in singleton pregnancy.

Methods: Respiratory function was assessed in 50 women with twin pregnancies and in 50 women with singleton pregnancies (during the third trimester in both groups), as well as in 50 non-pregnant women. We measured the following pulmonary function test parameters: FVC; FEV1; PEF rate; FEV1/FVC ratio; FEF25-75%; and maximal voluntary ventilation.

Results: All respiratory parameters except the FEV1/FVC ratio were found to be lower in the pregnant women than in the non-pregnant women. We found no significant differences between women with twin pregnancies and those with singleton pregnancies, in terms of respiratory function.

Conclusions: Despite its higher physiological demands, twin pregnancy does not appear to impair respiratory function to any greater degree than does singleton pregnancy.

Show MeSH