Background: Unplanned postoperative reintubation (UPR) may be associated with subsequent complications and increased mortality. We sought to characterize risk factors and outcomes associated with UPR after liver or pancreatic resections.
Methods: Adult patients who underwent elective liver or pancreatic surgery were identified in the National Surgical Quality Improvement Project Database (2014-2021). Univariate and multivariable regression analyses were conducted.
Results: Among 85,077 patients (liver = 34,892, pancreas = 50,185), 2.3 % (n = 1929) individuals required UPR with a median time to reintubation of 5 days (IQR 2-10). On multivariable regression, risk factors associated with UPR after liver resection included age ≥80 years (aOR = 4.24, 95%CI [2.81-6.38]) and total right lobectomy (aOR = 1.69, 95%CI [1.35-2.13]) while in the pancreatic surgery cohort, the risk factors included Whipple procedure (aOR = 1.64, 95%CI [1.40-1.92]) and pancreatic fistula (aOR = 2.50, 95%CI [2.11-2.97]). UPR was strongly associated with longer LOS (Liver∼+8.00 days; Pancreas∼+6.33 days) and 30-day mortality (aOR, Liver = 38.26; Pancreas = 17.38).
Conclusion: UPR occurred in ∼2 % of patients after liver and pancreatic resection. Risk factors and outcomes differed by organ, but UPR consistently marked severe postoperative deterioration substantially high mortality.
Background: Pathologically, cholangiocarcinoma (CCA) can be classified into small duct type and large duct type. This study evaluated clinical and molecular features of CCA according to its pathological subtype.
Methods: We analyzed 107 patients with CCA from three independent cohorts who underwent curative surgical resection. Clinical data, gene expression profiles, and mutation status were compared between pathological subtypes.
Results: Sixty four (59.8 %) and 43 (30.2 %) patients were categorized as small duct type and large duct type, respectively. The large duct type was significantly associated with N1 stage and higher preoperative serum CEA and CA 19-9 levels. Survival outcomes were significantly poorer in patients with large duct type CCA. Transcriptomic analysis identified 146 differentially expressed genes between the two subtypes, which were validated in an independent cohort. Pathway analysis demonstrated enrichment of inflammation-related and AKT/KRAS-associated signaling pathways in the large duct type. Mutation analysis showed that KRAS and PIK3CA mutations were more frequent in the large duct type, while IDH1/2 mutations and FGFR2 fusions were more common in the small duct type.
Conclusions: Pathological subtypes of CCA exhibit distinct clinical outcomes and molecular characteristics. Classification based on pathological subtype provides a useful framework for understanding the clinical and molecular heterogeneity of CCA.
Background: Minimally-invasive approaches to pancreatic surgery are increasingly utilized. We aimed to evaluate the implementation of robotic pancreatoduodenectomy (RPD) across the United States.
Methods: The National Cancer Database was queried for all patients undergoing pancreatoduodenectomy (PD) for pancreatic cancer in the United States between 2010 and 2020. The primary outcome was utlization of robotic PD. Secondary outcomes included perioperative outcomes following PD.
Results: There were 48,781 patients who underwent PD with 78.0 % and 5.2 % performed by an open and robotic approach, respectively. Utilization of RPD increased from 1.1 % to 10.3 % between 2010 and 2020 (p < 0.001). Robotic converted to open PD decreased from 22.2 % to 11.1 % over the study period (p = 0.006). Patients undergoing open or RPD had similar R0 resection, 30-day unplanned readmission, and 90-day mortality. The 10 highest volume centers for RPD performed 41.8 % of all RPD and had lower rates of conversion to open, post-operative length of stay, and a higher number of lymph nodes examined compared with other centers performing RPD (all p < 0.001).
Conclusion: Robotic PD is increasingly utilized in the United States but still represents a small fraction of patients undergoing PD. Given improved outcomes observed in high-volume centers, deliberate initiatives to expand RPD programs while ensuring continued centralization are important.

