Benjamin M Martin1, Joanna W Etra1, Maria C Russell1, Monica Rizzo1, David A Kooby1, Charles A Staley1, Viraj A Master2, Keith A Delman3. 1. Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute-Emory University, Atlanta, GA. 2. Department of Urology, Winship Cancer Institute-Emory University, Atlanta, GA. 3. Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute-Emory University, Atlanta, GA. Electronic address: kdelman@emory.edu.
Abstract
BACKGROUND: Open inguinal lymphadenectomy for regionally metastatic melanoma is associated with a high wound-related morbidity. Videoscopic inguinal lymphadenectomy (VIL) is a minimally invasive approach with fewer wound-related complications, yet its adoption has been hindered by a lack of oncologic outcomes data. STUDY DESIGN: Data were prospectively collected on all VILs performed for melanoma from 2008 to 2012 (n = 40) and compared with a retrospective cohort of open superficial inguinal lymphadenectomies from 2005 to 2012 (n = 40). Continuous variables were analyzed with Student's t-test, binomial variables with chi-square, and survival curves using log-rank comparison. RESULTS: Median follow-up for patients undergoing VIL was 19.1 months compared with 33.9 months in the open inguinal lymphadenectomy group. There were no statistical differences in demographics (age, sex, body mass index, smoking status, Charlson comorbidity index) or clinicopathologic features (primary site, stage, Breslow depth, ulceration). Lymph node yield was similar (VIL, 12.6; open, 14.2; p = 0.131). Overall recurrence rates were also similar: 27.5% in the VIL group and 30.0% in the open group (p = 0.805). One patient in the VIL group and 2 in the open group suffered recurrence in the nodal basin. Although median survival was not reached in the VIL group, Kaplan-Meier estimates of disease-free survival (p = 0.226) and overall survival (p = 0.308) were similar. In a comprehensive analysis of wound complications including infection, skin necrosis, and seroma, patients undergoing VIL had markedly less morbidity (VIL, 47.5%; open, 80.0%; p = 0.002). CONCLUSIONS: Videoscopic inguinal lymphadenectomy is associated with similar oncologic outcomes and markedly reduced wound complications when compared with open inguinal lymphadenectomy. The minimally invasive procedure may be the preferred method for inguinal lymphadenectomy in melanoma.
BACKGROUND: Open inguinal lymphadenectomy for regionally metastatic melanoma is associated with a high wound-related morbidity. Videoscopic inguinal lymphadenectomy (VIL) is a minimally invasive approach with fewer wound-related complications, yet its adoption has been hindered by a lack of oncologic outcomes data. STUDY DESIGN: Data were prospectively collected on all VILs performed for melanoma from 2008 to 2012 (n = 40) and compared with a retrospective cohort of open superficial inguinal lymphadenectomies from 2005 to 2012 (n = 40). Continuous variables were analyzed with Student's t-test, binomial variables with chi-square, and survival curves using log-rank comparison. RESULTS: Median follow-up for patients undergoing VIL was 19.1 months compared with 33.9 months in the open inguinal lymphadenectomy group. There were no statistical differences in demographics (age, sex, body mass index, smoking status, Charlson comorbidity index) or clinicopathologic features (primary site, stage, Breslow depth, ulceration). Lymph node yield was similar (VIL, 12.6; open, 14.2; p = 0.131). Overall recurrence rates were also similar: 27.5% in the VIL group and 30.0% in the open group (p = 0.805). One patient in the VIL group and 2 in the open group suffered recurrence in the nodal basin. Although median survival was not reached in the VIL group, Kaplan-Meier estimates of disease-free survival (p = 0.226) and overall survival (p = 0.308) were similar. In a comprehensive analysis of wound complications including infection, skin necrosis, and seroma, patients undergoing VIL had markedly less morbidity (VIL, 47.5%; open, 80.0%; p = 0.002). CONCLUSIONS: Videoscopic inguinal lymphadenectomy is associated with similar oncologic outcomes and markedly reduced wound complications when compared with open inguinal lymphadenectomy. The minimally invasive procedure may be the preferred method for inguinal lymphadenectomy in melanoma.
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