Contrast study of gallbladder emptying between pilots with polypoid lesions of gallbladder and healthy pilots
XU Xin-bao
WU Di
FU Zhao-jun
XU Xian-rong
Abstract： Objective We planned to analysis the difference of gallbladder contractility between pilots with polypoid lesions of gallbladder r(PLG group) and healthy pilots (Control group). Methods 18 pilots suffering from PLG and 18 healthy pilots with similar age, flying airplane and flying time were checked gallbladder contractility by colour B-ultrasound. The length (L), depth (D) and the width (W) of the gallbladder were assessed after overnight fasting and 60 minutes after fat meal separately, the fasting volume (FV) and residual volume (RV) were calculated with the formula: V= (π/6)×L×D×W. The gallbladder ejection fraction (GEF) was calculated with the formula: GEF= (FV-RV)/FV×100%. The fasting- and post fat meal-GEF between the two groups of pilots were compared. Results The pilots with PLG (18 cases) shared 7.0% of all the hospitalized pilots (257cases) for medical examination in the same period. Generally the GEFs at 60 min after fat meal were significantly lower in the PLG group than that in the control group (P<0.05). Conclusion PLG was a common disease in airplane pilots, and its pathologic mechanism might be due to malfunction of gallbladder emptying. Functional examination of gallbladder emptying could be regarded as a routine examination item of recruit pilots and annual flight physical examination.
Keywords：Gallbladder emptyingPilotsPolypoid lesions of gallbladder
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：2( 11-12 )