A Systematic Review of Interventions to Improve Humanism in Surgical Practice.

INTRODUCTION: Humanism in surgery is an emerging priority in surgical education. Its emphasis on the patient experience is a key component of the therapeutic relationship between surgeons and their patients. However, the documented high rates of compassion fatigue and burnout among surgical trainees and staff can serve as a barrier in delivering care with empathy and compassion. As such, this systematic review seeks to characterize the outcomes regarding interventions that aim to broadly improve humanism within surgery. METHODS: A systematic search of 4 electronic databases (EMBASE, MEDLINE, PsycINFO, and Cochrane CENTRAL) was conducted through an independent double selection and extraction process from database inception to March 20, 2020. The inclusion criteria consisted of interventional studies aiming to improve humanism in surgery at all levels of training. A qualitative synthesis and thematic analysis were performed. RESULTS: A total of 19 studies (1 RCT, 14 prospective cohort, and 4 cross-sectional studies), with 20 intervention arms, were included from the initial 745 studies that were eligible for title screening. Studies included a total of 1763 surgical trainees at varying levels of training. Two major strategies for improving humanism were identified: (1) directly through the development of empathetic communication skills (n = 11) and (2) indirectly through programs aimed at reducing levels of compassion fatigue and emotional exhaustion by addressing trainee burnout (n = 9). A total of 70% (14/20) of the studied interventions were successful in improving empathy in surgical trainees. CONCLUSION: Interactive workshops around the principles of empathetic communication with patient simulations and small group learning were effective at improving empathy in surgical trainees. Furthermore, mindfulness-based training and the provision of physical resources to support trainee well-being consistently improved rates of burnout among surgical trainees. Overall, further investigation is necessary to better understand methods of improving empathy in surgery.

Tobacco exposure and immunotherapy response in PD-L1 positive lung cancer patients.

BACKGROUND: Tobacco exposure contributes to over 80 % of lung cancer cases. Smoking is associated with programmed death-ligand 1 (PD-L1) tumor expression and better outcomes from anti-programmed cell death protein 1 (anti-PD-1) therapy in patients with advanced non-small cell lung cancer (NSCLC). PD-L1 tumor expression is now routinely used to predict benefit from anti-PD-1 therapy in patients with advanced NSCLC. In this study, we explored the impact of smoking status on patient outcomes with anti-PD-1 therapy in addition to PD-L1 tumor expression. METHODS: A prospective real-world cohort of 268 patients with advanced NSCLC treated with anti-PD-1 monotherapy at the Princess Margaret Cancer Centre (PMCC) was used for this analysis. Logistic regression was performed to test factors associated with treatment response (RECIST v1.1), including PD-L1 tumour proportion score (TPS) and smoking status. RESULTS: Overall response rates (ORR) to immunotherapy were significantly higher in current and former smokers than never smokers (36 % vs 26 % vs 14 %; p = 0.02). In patients with PD-L1 tumour proportion score (TPS) ≥50 %, current smokers continued to experience better ORR to anti-PD-1 therapy than never smokers (58 % vs 19 %; p = 0.03). Current smoking was associated with higher response even after adjusting for level of PD-L1 TPS expression (adjusted odds ratio 5.9, 95 % CI 1.6-25.0, p = 0.03). Exploratory analysis demonstrated higher 1-year survival rates in smokers compared to never smokers (p = 0.003). CONCLUSIONS: Smoking remains an important factor associated with response to anti-PD-1 monotherapy. Advanced NSCLC patients with positive PD-L1 expression are more likely to respond to anti-PD-1 monotherapy if they are current smokers compared to never smokers.