Resident peripheral nerve surgery competence: An assessment of procedural exposure, self-reported competence and technical ability.

BACKGROUND: Identifying peripheral nerve surgery procedure (PNSP) competencies is crucial to ensure adequate resident training. We examine PNSP training at neurosurgical centers in the US and Canada to compare resident-reported competence, PNSP exposure, and resident technical abilities in performing 3 peripheral nerve coaptations (PNC). METHODS: Resident-reported PNSP competence and PNSP exposure data were collected using questionnaires from neurosurgical residents at North American neurosurgical training centers. Exposure and self-reported competency were correlated with technical skills. Technical PNC variables collected included: time-to-completion, nerve-handling from video-analysis, independent and blinded visual-analog-scale (VAS) PNC quality grading by 3 judges, and training level. RESULTS: A total of 40 neurosurgical residents participated in the study. Although self-reported competency scores correlated with procedural exposure (P < 0.01, rs = 0.88), a discrepancy was found between the degree of self-reported competency and amount of exposure. The discrepancy was greater in senior residents. A significant VAS difference was found between PNC types with the direct-suture and connector-assister groups scoring higher than connector-only (P = 0.02, P < 0.01, respectively). No difference was observed between training level and VAS grading, nor time-to completion (P = 0.33 and 0.25, respectively). No correlation was found between self-reported competency performing PNSPs and PNC VAS scores, nor nerve handling. CONCLUSIONS: Despite more exposure and a higher self-reported PNSP competency in senior residents, no difference was seen between senior/junior residents in PNC quality. A discrepancy in PNSP exposure and self-reported competency exists. This information will provide guidance for the direction of resident PNS training.

Mortality-causing mechanisms and healthcare resource utilisation of treatment-resistant depression: A six-year population-based cohort study.

Background: Few studies investigated the mechanisms of treatment-resistant depression (TRD) leading to the worsened survival outcome, and economic evidence was mostly restricted to short follow-ups. We aimed to examine the association and potential mediators between TRD and all-cause mortality, and estimate a longer-term associated health resource utilisation pattern. Methods: This was a population-based cohort study using territory-wide electronic medical records in Hong Kong. Incident depression patients diagnosed in 2014 were followed up from the first diagnosis to death or December 2019 for TRD identification. We matched the TRD cohort 1:4 to the non-TRD cohort on propensity scores estimated by age, sex, history of physical disorders, and history of psychiatric conditions before depression diagnoses. Findings: 18% of incident patients developed TRD within six years of follow-up. Cox model showed that patients with TRD had 1⋅52-fold (95% CI: 1⋅14-2⋅02) greater risk of all-cause mortality, compared with non-TRD patients. Path analysis suggested that post-TRD psychiatric conditions significantly mediated 41⋅6% of mortality in patients with TRD (p=0.003). TRD was associated with 1⋅8-fold (95%CI: 1⋅63-2⋅00) higher healthcare costs compared to non-TRD patients over six years in negative binomial regression, with higher costs for both psychiatric and non-psychiatric services utilisation in all settings. Interpretation: Identifying patients with TRD and subsequent monitoring for post-TRD psychiatric diagnoses could be a way to reduce premature mortality. Multidisciplinary care involving both psychiatric and general medical professionals is also warranted to relieve the multifaceted impacts on healthcare resources and overall cost. Funding: Unconditional educational grant from Janssen.