Journal
ANNALS OF SURGICAL ONCOLOGY
Volume 30, Issue 3, Pages 1772-1783Publisher
SPRINGER
DOI: 10.1245/s10434-022-12834-0
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The sequence of therapies for synchronous liver metastasis is complex, and individualized approaches are supported by data but lack guiding tools. This study assessed the impact of simultaneous hepatic and visceral resections on treatment outcomes and the return to intended oncologic therapy, and developed risk-stratification tools for decision-making and counseling.
Purpose. Sequence of therapies for synchronous liver metastasis (LM) is complex, with data supporting individualized approaches, although no guiding tools are currently available. We assessed the impact of simultaneous hepatic and visceral resections (SHVR) on textbook outcome (TO) and return to intended oncologic therapy (RIOT), and provide risk-stratification tools to guide individualized decision making and counseling. Methods. Patients with synchronous LM undergoing hepatectomy +/- SHVR were included (2015-2021). Primary and secondary outcomes were TO and RIOT (days), respectively. Using multivariable modeling, a risk score for TO was developed. Decision tree analysis using recursive partitioning was performed for hierarchical risk stratification. The associations between SHVR, TO, and RIOT were examined. Results. Among 533 patients identified, 124 underwent SHVR. TO overall was 71.7%; 79.2% in the non-SHVR group and 46.8% in the SHVR group (p < 0.001). SHVR was the strongest predictor of non-TO (right colon/small bowel: odds ratio [OR] 4.63, 95% confidence interval [CI] 2.65-8.08; left colon/rectum: OR 6.09, 95% CI 2.59-14.3; stomach/pancreas: OR 6.69, 95% CI 1.46-30.7; multivisceral: OR 10.9, 95% CI 3.03-39.5). A composite score was developed yielding three risk strata for TO (score 0-2: 89% vs. score 3-5: 67% vs. score >= 6: 37%; p < 0.001). Decision tree analysis was congruent, identifying SHVR as the most important determinant of TO. In patients with colorectal LM, SHVR was associated with delayed time to RIOT (p = 0.004); the risk-stratification tool for TO was equally predictive of RIOT (p < 0.01). Conclusions. SHVR is associated with reduced likelihood of TO and in turn delayed RIOT. As SHVR is increasingly performed in order to consolidate cancer care, patient selection considering these different outcomes is critical.
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