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Prolonged viral shedding identified from external splints and intranasal packings in immediately cured COVID-19 patients with nasal fractures: A retrospective study #MMPMID35413460
BACKGROUND: Our aim was to measure and compare prolonged viral shedding (PVS) identified from external splints (ES) and intranasal packings (IP) for isolated nasal fracture (INF) repair in immediately cured asymptomatic vs. mildly symptomatic COVID-19 patients (AS-COVID vs. MS-COVID). METHODS: We designed a retrospective cohort study and enroled a sample of post-AS-COVID and post-MS-COVID patients, whose INF were treated at a German level 1 trauma centre. The primary predictor variable was COVID severity presurgery (AS-COVD vs. MS-COVID). The main outcome variable was PVS detected in ES/IP. Other study variables were separated into demographic, clinical, and operative. Descriptive, bi- and multivariate statistics were computed, and statistical significance was set at P= 0.05. RESULTS: The study sample comprised 15 INF patients (53.3% females; 46.7% post-AS-COVID) with a mean age of 42.2 +/- 22.7 years (range, 18-85). 13.3% ES and 53.3% IP were contaminated with SARS-CoV-2. However, only IP-contamination between the two cohorts reached statistical significance (P= 0.01; odds ratio, 0.02; 95% confidence interval, 0 to 0.47; Pearson's r= 0.73; post hoc power = 87.4%). Multiple linear regression models refuted the associations between PVS and the other parameters (i.e. age, gender, time to treatment, length of hospital stay, lengths of ES/IP placement). CONCLUSIONS: Despite a relative low sample size, our findings suggest PVS via endonasal materials removed from cured COVID-19 patients, especially those healed from MS-COVID. This PVS may trigger re-infection and surgical site infections and/or transmission to other humans, and thereby, requires further investigations.