Publications by authors named "P N Larsen"

Purpose: Perihilar cholangiocarcinoma (pCCA) is a rare malignancy requiring resection of extrahepatic bile ducts with or without hepatectomy. Prognostic models for post-operative outcomes in pCCA are unusable in pre-operative decision-making as most are based on post-operative variables. Additionally, no pre-operative models include futile laparotomy or benign hilar stenosis (BHS) as possible outcomes.

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Background: Perihilar cholangiocarcinoma (pCCA) has a 5-year overall survival (OS) ranging from 10-40%, following resection. However, prognostic models for postoperative outcomes are limited by long study timespan and variations in work-up. We investigated postoperative outcomes in patients resected for pCCA in a high-volume center with standardized work-up.

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Sensitive and specific antemortem diagnostic tests are a prerequisite for effective management of chronic wasting disease (CWD). Paired with readily accessible samples that accurately reflect CWD status, the real-time quaking-induced conversion (RT-QuIC) assay has the potential to enable more effective CWD surveillance and interventions. We evaluated the feasibility of RT-QuIC as a CWD diagnostic test using 6-mm ear tissue biopsies from elk (Cervus canadensis).

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Free, prior, and informed consent (FPIC) is now a globally established norm and is a condition of equitable engagement with Indigenous peoples and local communities in biodiversity conservation. However, implementation is frequently questioned in terms of its efficacy in top-down-driven governance contexts. Local officials represent core voices often absent from mainstream discourse.

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