[Evaluation of ovoscopic methods in the diagnosis of invasion with the tapeworm, Taenia saginata].

During the period between 1979-1988 the authors examined 84 patients with the diagnosis of T. saginata by three ovoscopic methods to detect ova of tapeworms (Hein's method of faecal smears, Fust's method supplemented by examination of the sediment, and Graham-Brumpt's method of examination of the perianal area by means of an adhesive PVC tape. Of the mentioned methods Hein's method combined with Graham-Brumpt's method was most useful, as they detected ova of T. saginata during a single examination in 77 probands (91.7%). By Hein's method alone 8 positive (9.5%) cases were detected, by Graham-Brumpt's method alone 7 (8.3%) positive cases. Ovoscopic examination is recommended by the authors, in particular for workers engaged in animal farming and agriculture where the contact with the examined subjects is often difficult and they often do not report the excretion of segments in the faeces.