Efficacy of visual inspection of the cervix using acetic acid in cervical cancer screening: a comparison with cervical cytology

J Obstet Gynaecol. 2007 Oct;27(7):703-5. doi: 10.1080/01443610701614421.

Abstract

Screening programmes for the early detection of premalignant lesions of the cervix are expensive and technically difficult, especially in resource-challenged settings. There is a need for cheaper and equally effective alternative screening methods. This study compared the efficacy of visual inspection of the cervix using acetic acid (VIA) with the Pap smear method. A total of 186 subjects had a Pap smear followed by visual inspection of the cervix using 3 - 5% acetic acid with biopsies taken from suspicious acetowhite positive lesions. Cases of abnormal cytology were recalled for biopsies. A total of 150 subjects were negative for both tests; 30 (16.2%) were positive for VIA, while six were positive for both VIA and Pap smear. VIA detected one lesion missed by Pap smear on biopsy. The sensitivity of VIA was 100%, while that of Pap smear was 85.7%. The negative predictive value of VIA was 100%, while the positive predictive value was 20%. The sensitivity of VIA equals the reported rates for Pap smear. VIA is proposed as a credible alternative to Pap smear in resource-challenged settings.

Publication types

  • Comparative Study

MeSH terms

  • Acetic Acid*
  • Adult
  • Biopsy, Needle
  • Cervix Uteri
  • Colposcopy
  • Female
  • Humans
  • Indicators and Reagents
  • Mass Screening
  • Papanicolaou Test*
  • Predictive Value of Tests
  • Sensitivity and Specificity
  • Uterine Cervical Neoplasms / diagnosis*
  • Uterine Cervical Neoplasms / pathology
  • Uterine Cervical Neoplasms / prevention & control*
  • Vaginal Smears*

Substances

  • Indicators and Reagents
  • Acetic Acid