Success criteria and challenges of mobile radiography in the era of COVID-19 pandemic: A Singapore perspective.

INTRODUCTION: Radiographers provide mobile radiography services for patients who are critically ill as well as patients isolated due to highly infectious diseases such as COVID-19. The pandemic has caused the demand for mobile radiography to increase. This study aims to understand the experience of radiographers performing mobile radiography during the COVID-19 pandemic to identify the success criteria and challenges faced. METHODOLOGY: This study utilized a cross sectional online survey to obtain data. The online survey was disseminated to radiographers working in public hospitals who have performed mobile radiography from February 2020 to September 2021. The key sections explored in the survey are: (1) demographics, (2) operations, (3) adequacy of resources, and (4) success criteria. The answers were obtained in the form of multiple choice questions, Likert scales or free text. RESULTS: Radiographers reported a rise in mobile radiography workload as well as increased time required to perform an examination for COVID-19 patients. The factors identified for success criteria were: (1) infection control management, (2) resource management (3) modified techniques and (4) improved workflow. The challenges encountered were: (1) nature of exam, (2) juggling the demand for mobile imaging and (3) staff well-being. CONCLUSION: As the COVID-19 situation is evolving, departments have to constantly refine policies and processes as well as ensure the provision of adequate resources such as manpower and personal protective equipment (PPE) so that radiographers feel supported and can perform their duties safely. IMPLICATIONS FOR PRACTICE: This study has identified challenges that radiographers face in mobile radiography as well as the success criteria that can aid radiographers in their job.

Association of Monocyte Chemotactic Protein-1 and Dickkopf-1 with Body Composition and Physical Performance in Community-Dwelling Older Adults in Singapore.

OBJECTIVE: We aim to determine the association of monocyte chemotactic protein-1 (MCP-1) and dickkopft-1 (DKK-1) as potential biomarkers that may predict changes in body composition and physical performance in healthy older adults from Singapore. METHODS: Two-hundred community-dwelling older adults (mean age: 67.9 years; 68.5% females) were classified into elevated versus non-elevated groups based on quintile cut-offs of MCP-1 and DKK-1 levels (156.02 pg/mL and 606.31 pg/mL, respectively). Multiple linear regression was performed to examine the relationship between MCP-1 and DKK-1 with body composition and physical performance, adjusted for age, gender and ethnicity. RESULTS: MCP-1 was significantly associated with higher fat mass, fat mass index, percentage body fat, waist circumference and trunk-limb ratio for fat mass (all p<0.01), and repeated chair stand (p=0.004). DKK-1 was not associated with body composition and physical performance measures. Utilising the Asian Working Group for Sarcopenia (AWGS) 2019 criteria, there were 39 (19.5%) sarcopenia and 161 (80.5%) non-sarcopenia participants respectively, with MCP-1 levels significantly higher in sarcopenia compared with non-sarcopenia (p=0.046), but not for DKK-1 (p=0.525). CONCLUSIONS: Elevated MCP-1 are associated with changes in fat composition, physical performance and sarcopenia, suggesting its usefulness in identifying at-risk group with sarcopenic obesity.