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A 3D Organotypic Melanoma Spheroid Skin Model
Published on: May 18, 2018
Metastasectomy for metastatic melanoma in the era of effective systemic therapy
Issac R Schwantes1, Thomas Sutton1, Shay Behrens1
1Department of Surgery, Oregon Health & Science University, Portland, OR, USA.
Introduction:
Effective systemic therapy (EST) in patients with metachronous metastatic melanoma (MMM) improves survival and alters surgical decision-making. Surgical metastasectomy is another treatment option, however, it is unclear if metastasectomy confers survival benefit. This study seeks to identify any survival benefit associated with surgical management of MMM.
Methods:
Patients with MMM from 2009 to 2021 were grouped by receipt of metastasectomy and treatment era (pre-versus post-EST). Overall survival (OS) was calculated from date of metastasis and evaluated with Kaplan-Meier analysis.
Results:
Our dataset identified 226 patients with MMM; 32% were diagnosed pre-EST. On Kaplan-Meier analysis, OS was improved for patients undergoing treatment post-versus pre-EST (p < 0.001). In the post-EST era, metastasectomy was associated with an increase in OS compared to no resection (p = 0.022).
Conclusions:
In the post-EST group, EST paired with metastasectomy was associated with improved OS compared to the pre-EST group, suggesting persistent evidence of a survival benefit from metastasectomy.
