A Prospective, Randomized, Blinded Trial of Cytological Yield with Disposable Cytology Brushes in Upper Gastrointestinal Tract Lesions

Camp, Rodney; Rutkowski, Mary Ann; Atkison, Karen; Niedzwick, Linda; Vakil, Nimish
October 1992
American Journal of Gastroenterology;Oct1992, Vol. 87 Issue 10, p1439
Academic Journal
Brush cytology is an important technique in the diagnosis of upper gastrointestinal tract lesions. Optimum cytological yields depend on cellularity (a measure of the amount of epithelial cellular material) and preservation (a measure of artifact induced by dessication). We sought to determine the cytological yield of four disposable cytology brushes. Seventy-eight patients were studied, with a total of 80 disposable cytology brushes from four different manufacturers (Wilson-Cook, Microvasive, Mill-Rose, and Hobbs). Cellularity and preservation were assessed in a blinded fashion by experienced cytotechnologists. There was no significant difference in cellularity between the different nondisposable brushes. However, the Wilson Cook disposable cytology brush was significantly superior to the other disposable cytology brushes (P < 0.05) with regard to preservation. Its unique design features (longer head and more acutely angled bristles) may account for the better results.


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