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  • Title: The value of the Cytobrush for obtaining cells from the uterine cervix.
    Author: Kawaguchi K, Nogi M, Ohya M, Nishikawa Y, Kobayashi TK.
    Journal: Diagn Cytopathol; 1987 Sep; 3(3):262-7. PubMed ID: 3665693.
    Abstract:
    A study was undertaken to evaluate the efficacy of the Cytobrush compared with the cotton-tipped applicator for obtaining cells from the uterine cervix. Four consecutive Papanicolaou smears were obtained in 1,000 patients during a single clinic visit. In every patient, a total of four smears on two slides were submitted: one slide contained endocervical material obtained with a cotton-tipped applicator and with the Cytobrush and the other slide contained ectocervical material obtained with both a cotton-tipped applicator and the Cytobrush. In endocervical smears, the Cytobrush technique produced numerous groups and clusters of cervical columnar cells in contrast to the use of the cotton swab. This was particularly true in older patients and pregnant women. In ectocervical smears, the detection of the squamous component was also higher in the Cytobrush smear than in cotton swab smears. However, the cell yield was not influenced by the cell sampling sequence in either endocervical or ectocervical specimens. It is the conclusion of this study that the utility of the Cytobrush technique for collecting specimens for endocervical and ectocervical smears is greater and provides a higher yield of cells than the cotton swab technique. Wider use of this simple procedure is encouraged.
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