Comparative evaluation of seven cell collection devices for cervical smears

OBJECTIVE: To compare the most commonly used cervical sampling devices. STUDY DESIGN: We examined seven cytology sampling devices (Cytobrush, Cerve x brush, Szalay spatula, Papex spatula, WrGKK spatula [main social security agency in Vienna], cotton swab and loop). Eight hundred smears were assess ed for even distribution of cells, percentage of slide surface covered with cells, and presence and number of endocervical cells. RESULTS: Even distribution of cells was best with the WrGKK spatula. Percen tage of slide surface covered with evaluable cells was best with the Cytobr ush. Highest ranking for the presence of endocervical cells was found for t he Cytobrush. Cotton swabs and loop showed inferior results in all categori es. CONCLUSION: The use of cervical cell sampling devices showing the best cyto logic results improves the interpretation and validity of cervical smears. Our results suggest that cotton swabs and loops should not be used for cerv ical cell sampling.