Fungal Infection following Total Elbow Arthroplasty

A specific treatment protocol for managing fungal infections after total elbow arthroplasty (TEA) does not currently exist. The purpose of this report is to describe our experience and outline our treatment algorithm for a rare case of prosthetic joint infection (PJI) following a TEA. We present a case of a PJI due to Candida parapsilosis after TEA in a 57 year-old Caucasian woman with a history of hypertension, depression, and three previous surgical procedures to the affected limb. A fungal PJI by the organism C. parapsilosis following TEA has not been previously reported. Successful eradication of the fungal infection was achieved utilizing resection arthroplasty; placement of an amphotericin, vancomycin, and tobramycin-impregnated cement spacer; and 6 months of organism-specific antifungal medication. Although the patient was clinically ready for reimplantation, she passed away due to unrelated issues before reimplantation could be performed. While PJI is a devastating complication following TEA, a fungal infection is a rare complication that imposes difficult challenges to the treating surgeon. With our case report, we hope to contribute to the overall knowledge of fungal infections associated with TEA and describe our successful treatment of this complex case.Peer Reviewe

‘A picture is worth a thousand words’—A photovoice study exploring health professionals’ experiences during the COVID‐19 pandemic

AIM: To elicit the experiences and perspectives of health professionals working on the frontline in the COVID‐19 pandemic. BACKGROUND: Although some qualitative studies have been carried out in health professionals during COVID‐19 pandemic, to our knowledge, no study has used the Photovoice method. DESIGN: A qualitative descriptive study using Photovoice was carried out between March and June 2020. METHODS: A total of 20 health professionals were recruited from public and private healthcare services. The participants were invited to share photographs about their experiences while working during COVID‐19 pandemic. Following the Photovoice method, audio‐recorded interviews were conducted. The data were analysed using the ‘SHOWED’ mnemonic, with five questions answered about each photograph. The EQUATOR checklist has been used. RESULTS/FINDINGS: Three themes emerged: (1) Personal attitudes of health professionals; (2) Support from the community; and (3) Management of institutional resources. Despite the fact that health professionals in this study were exposed to major risks while caring for patients with COVID‐19’ they felt a strong sense of responsibility towards the community. In order to handle these stressful situations, they used coping mechanisms, good humour and leisure, but also received support from the population, who saw them as highly skilled health professionals. CONCLUSION: These findings highlight the essential role of health professionals in the COVID‐19 pandemic and the tireless work they are carrying out to provided highly skilled care. RELEVANCE TO CLINICAL PRACTICE: These findings could contribute to raise awareness on the needs of health professionals during the pandemic, allowing managers to plan strategies to ensure the safety, and well‐being of these professionals, as well as adopting similar strategies in their practice to create a space for critical reflection through participatory approaches

RAS/MAPK Activation Drives Resistance to Smo Inhibition, Metastasis, and Tumor Evolution in Shh Pathway–Dependent Tumors

Aberrant Shh signaling promotes tumor growth in diverse cancers. The importance of Shh signaling is particularly evident in medulloblastoma and basal cell carcinoma (BCC), where inhibitors targeting the Shh pathway component Smoothened (Smo) show great therapeutic promise. However, the emergence of drug resistance limits long-term efficacy and the mechanisms of resistance remain poorly understood. Using new medulloblastoma models, we identify two distinct paradigms of resistance to Smo inhibition. Sufu mutations lead to maintenance of the Shh pathway in the presence of Smo inhibitors. Alternatively activation of the RAS/MAPK pathway circumvents Shh pathway-dependency, drives tumor growth and enhances metastatic behavior. Strikingly, in BCC patients treated with Smo inhibitor, squamous cell cancers with RAS/MAPK activation emerged from the antecedent BCC tumors. Together these findings reveal a critical role of RAS/MAPK pathway in drug resistance and tumor evolution of Shh pathway-dependent tumors