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  • Title: Cervex-Brush vs. spatula and Cytobrush. A cytohistologic evaluation.
    Author: Risberg B, Andersson A, Zetterberg C, Nordin B.
    Journal: J Reprod Med; 1997 Jul; 42(7):405-8. PubMed ID: 9252930.
    Abstract:
    OBJECTIVE: To compare the efficacy of two cervical smear instruments, Cervex-Brush and spatula plus Cytobrush. STUDY DESIGN: Cervical smears were taken before laser ring biopsies in 213 women, who were randomized for the Cervex-Brush or spatula plus Cytobrush (S+C). The cytologic diagnosis was compared to the histologic diagnosis after laser ring biopsy. RESULTS: The correlation between cytology and histology showed comparable concordance (54% and 42%) for the two devices. In 130 (74 with Cervex-Brush and 56 S+C) patients, histology revealed moderate dysplasia or more advanced lesions. Those cases were further analyzed for smear failures. Negative smears were found in 13 cases (10 in the Cervex-Brush and 3 in the S+C group). This difference in favor of S+C was not, however, statistically significant. Significantly more false negative smears were found when endocervical cells were absent and in patients 30-39 years of age. CONCLUSION: Modern sampling devices, such as the Cervex-Brush and S+C, seem to be equally efficient in obtaining dysplastic squamous cells. Other factors of importance for nonrepresentative cervical smears should be studied in order to improve efficacy.
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