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Wound edge biopsy sites in chronic wounds heal rapidly and do not result in delayed overall healing of the wounds

Wound biopsies are an essential diagnostic component in the management of chronic wounds. First, the possibility of malignancy or infection in the wound often requires sampling of the wound edge and its bed. Secondly, several practice guidelines recommend biopsying wounds that have not responded to treatment after 2–6 weeks. However, there has always been a concern that the biopsy may worsen the wound and delay overall healing. In this report, we investigated the safety and effects of wound biopsies on overall chronic wound healing rates (advance of the wound edge per week toward the center) before and after the biopsy was performed. In a cohort of 14 consecutive patients with chronic wounds of the lower extremity, we found that postbiopsy chronic wound healing rates (0.99±1.18 mm/week; mean±SD) were not decreased and were actually higher than prebiopsy chronic wound healing rates (0.49±0.85 mm/week; mean±SD, p<0.05). In addition, we documented that healing of the biopsy sites up to the original wound edge occurred within 6 weeks in 11 of the 14 subjects. Therefore, we conclude that chronic wounds do not worsen after being biopsied and that wound biopsies are a safe procedure that does not delay overall healing of the chronic wound.