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Nylon brush improves collection of cervical cytologic specimens
D J Dotters1, C N Carney, W Droegemueller
1Department of Obstetrics and Gynecology, University of North Carolina, Chapel Hill 27599-7570.
American Journal of Obstetrics and Gynecology
|October 1, 1988
Summary
The nylon brush is more effective than swabs and spatulas for collecting endocervical cells in Papanicolaou (Pap) smears, leading to fewer inadequate samples and potentially reducing false negatives.
Area of Science:
- Gynecologic Cytopathology
- Cervical Cancer Screening
Background:
- Papanicolaou (Pap) smears are crucial for cervical cancer screening.
- Adequate sampling of the endocervix and transitional zone is essential for accurate Pap smear results.
- Traditional methods like swabs and spatulas may have limitations in obtaining sufficient cellular material.
Purpose of the Study:
- To compare the efficacy of a nylon brush versus traditional swabs and spatulas for obtaining cervical cytologic specimens.
- To evaluate the adequacy of Papanicolaou smears based on cellular yield, particularly from the endocervix.
Main Methods:
- A prospective, randomized study design was employed.
- Nylon brush was compared against cotton-tipped swab and wooden spatula.
- Objective criteria were used to assess smear adequacy, focusing on cell count.
Main Results:
- Both methods were equally effective for ectocervical smear collection.
- The nylon brush yielded significantly more endocervical cells (96% >50 cells) compared to swab/spatula (58%).
- The nylon brush resulted in fewer inadequate endocervical samples (1.4% vs. 19%).
Conclusions:
- The nylon brush is superior for obtaining adequate endocervical cytologic specimens.
- Utilizing the nylon brush may decrease the incidence of false-negative and inadequate Pap smears.
- Improved sampling technique can enhance the reliability of cervical cancer screening.