The clinical value of colposcopy and biopsy prior to large loop excision of the cervical transfor... more The clinical value of colposcopy and biopsy prior to large loop excision of the cervical transformation zone (LLETZ) with respect to negative histology and positive specimen margin rates, was evaluated. A total of 2,050 consecutive patients who had undergone LLETZ from 1997 to 2005, were included. As diagnostic workup prior to LLETZ, 290 patients underwent repeat PAP test only and 1,760 patients had undergone colposcopy/biopsy. The diagnostic approach using colposcopy/biopsy reduced the rates of negative histology and positive margins from 6.0% to 1.9% (p < 0.001) and from 28.2% to 21.7% (p = 0.002), respectively. The rates of invasive carcinomas were not different between the groups (6.6% vs. 6.5%; p = 0.9). Performing colposcopy and biopsy prior to LLETZ reduces unnecessary surgical procedures and decreases positive margin rates.
The clinical value of colposcopy and biopsy prior to large loop excision of the cervical transfor... more The clinical value of colposcopy and biopsy prior to large loop excision of the cervical transformation zone (LLETZ) with respect to negative histology and positive specimen margin rates, was evaluated. A total of 2,050 consecutive patients who had undergone LLETZ from 1997 to 2005, were included. As diagnostic workup prior to LLETZ, 290 patients underwent repeat PAP test only and 1,760 patients had undergone colposcopy/biopsy. The diagnostic approach using colposcopy/biopsy reduced the rates of negative histology and positive margins from 6.0% to 1.9% (p < 0.001) and from 28.2% to 21.7% (p = 0.002), respectively. The rates of invasive carcinomas were not different between the groups (6.6% vs. 6.5%; p = 0.9). Performing colposcopy and biopsy prior to LLETZ reduces unnecessary surgical procedures and decreases positive margin rates.
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