EFFECT OF REDUCTION MAMMOPLASTY ON THE PULMONARY FUNCTION TEST

Abstract

The effect of reduction mammoplasty on the pulmonary function was a controversial subject since long
time. Some studies stated its beneficial effect, and others denied it. In this study we will try to clarify the
effect of reduction of the size of big breast on the pulmonary function tests. Patients and method: This
study was performed on 42 adult females divided into two equal groups: Group I: Control group (n=21
normal adult females with average breast size) and group II: macromazia group (n=21). All subjects in
both groups were subjected to pulmonary function test in erect and supine positions as well as arterial
blood gases analysis. In control group these tests were done once, while in macromazia group tests were
done twice; preoperatively and after their submission to surgery (inferiorly based reduction mammoplasty)
by two months, and the results were compared and analyzed. Results: In this study it was found that
reduction mammoplasty induced a significant improvement in some pulmonary functions as FVC (Forced
Vital Capacity), FEV1/FVC (The ratio of forced expiratory volume in 1st second to forced vital capacity).
However there was no significant change in FEV1 (Forced Expiratory Volume in 1st second), PEF (Peak
expiratory flow rate). The improvement in pulmonary function parameters in supine position was
significantly better than that occurred in erect position with a demonstrated positive correlation between
weight of excised specimens from breasts and pulmonary function parameters. Moreover, reduction
mammoplasty significantly increased partial oxygen tension and O2 saturation in arterial blood with
insignificant changes in, pH, Partial Co2 tension and bicarbonate level. Conclusion: reduction
mammoplasty enhances some parameters in pulmonary function with improvement of partial oxygen
tension and oxygen saturation in patients with macromazia
Key Words: reduction mammoplasty, macromazia, pulmonary functions