Shazia Batool, Rabbia Shakoor, Ghulam Mustafa, Ammar Anwer, Shahroona Masood, Zafar H Tanveer.
Comparison of lung functions of pregnant women with non-pregnant women at Sheikh Zayed Hospital, Rahim Yar Khan.
J Sheikh Zayed Med Coll Jan ;2(1):155-8.

Background: Pregnancy has marked effect on pulmonary functions and capacities. Objectives: This study was designed to determine the changes in pulmonary functions during pregnancy. Patients and Methods: This was prospective study, conducted from 1st January 2008 to 30th November, 2008, A total of 80 study subjects were included in this study, divided into 4 groups, with each group having 20 study participants. The groups were as;1st group having non pregnant females in their mid-luteal phase, 2nd group having females in their 1st trimester of pregnancy, 3rd group having females in 2nd trimester of pregnancy, 4th group having females in their 3rd trimester of pregnancy. A questionnaire in which data regarding name, age, parity, duration of gestation was used. Results: A total of 80 study subjects were included in this study. Overall mean age was 25±3.5 years.1st group was having age of 21±2 years,2nd group was having mean age of 26±4 years, 3rd group having mean age of 27±4 years, whereas, 4th group was having mean age of 24±3.2 years. All the females were house wives, except controls, who were students. 71% of the study subjects were uneducated. We found out significant decrease in FEV (P=0.000), FVC(P=0.002), and FEV /FVC(P=0.014) in all three groups of 1 1 pregnant women as compared to non-pregnant. Conclusion: The respiratory system undergoes anatomical & physiological changes during pregnancy and there is a significant decrease in FEV , FVC and FEV /FVC among pregnant women

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