Cervix: Poster Abstract: Comparison of Keyes punch biopsy instrument with cervical punch biopsy forceps for diagnosing cervical lesions
This article was originally published by Wolters Kluwer - Medknow and was migrated to Scientific Scholar after the change of Publisher.
To assess the feasibility and efficacy of Keyes punch biopsy instrument (KP) in diagnosing cervical lesions and compare it with cervical punch biopsy forceps (CP).
75 women having adequate colposcopy with abnormal transformation zone were included and paired colposcopic directed biopsies were taken using KP followed by CP from the same target area. The outcome parameters were compared using paired t-test, Wilcoxon signed rank test and McNemar test.
It was feasible in all cases to take cervical biopsy with KP and CP. Volume of gross specimen obtained by KP was less than CP (0.076±0.097 vs 0.101±0.156 cm3, p=0.061), however on microscopic examination, mean length and depth of tissue in KP was greater than CP by 0.06 mm (p=0.810) and 0.14 mm (p=0.634) respectively. There was an exact agreement with final surgical specimen in 42% of cases in both forceps. Agreement within 1 degree was found in 25% of cases with KP and in 17% of cases with CP. Both the forceps equally missed microinvasive lesions but KP was inferior to CP for invasive cancer.
KP is almost at par with CP for diagnosing preinvasive cervical lesions and is a useful adjunct to the existing armamentarium of biopsy forceps.