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We sought to investigate whether robotic pancreatoduodenectomy (RPD) mitigates adverse outcomes in patients with high-risk morphometric features compared to the open approach (OPD).Morphometric parameters for RPD and OPDs were measured by two blinded radiologists. The morphometric parameter best correlating with adverse outcomes was identified and used in multivariable models to evaluate the impact of surgical approach (open vs. robotic) on outcomes of patients with high-risk morphometric features.Of 282 PDs available for morphometric analysis, 134 (47.5%) underwent RPD. Average Psoas Density demonstrated the most frequent association with adverse outcomes, with correlations to prolonged LOS (ρ= -0.154, p=0.01), severe complications (ρ= -0.159, p=0.007), readmission (ρ= -0.16, p=0.007), and discharge to home (ρ= 0.2, p0.001). On multivariable analysis of patients with high-risk morphometric features (defined as APD ≤ 50This study confirms the association between morphometrics and outcomes following PD, and suggests that the robotic approach may be associated with improved outcomes in PD patients with high-risk morphometric features.

The Risk Analysis Index (RAI) for frailty is a rapid survey for comorbidities and performance status, which predicts mortality after general surgery. We aimed to validate the RAI in predicting outcomes after hepatopancreatobiliary surgery.Associations of RAI, determined in 162 patients prior to undergoing hepatopancreatobiliary surgery, with prospectively collected 30-day post-operative outcomes were analyzed with multivariate logistic and linear regression.Patients (age 62 ± 14, 51% female) had a median RAI of 7, range 0-25. With every unit increase in RAI, length of stay increased by 5% (95% CI: 2-7%), odds of ICU admission increased by 10% (0-20%), ICU length of stay increased by 21% (9-34%), and odds of discharge to a nursing facility increased by 8% (0-17%) (all P 0.05). Particularly in patients who suffered a first post-operative complication, RAI was associated with additional complications (1.6 unit increase in Comprehensive Complication Index per unit increase in RAI, P = 0.002). In a direct comparison in a subset of 74 patients, RAI and the ACS-NSQIP Risk Calculator performed comparably in predicting outcomes.While RAI and ACS-NSQIP Risk Calculator comparatively predicted short-term outcomes after HPB surgery, RAI has been specifically designed to identify frail patients who can potentially benefit from preoperative prehabilitation interventions.