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Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Laryngoscope 2021 ; 131 (10): E2634-E2638 Nephropedia Template TP
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Discordant SARS-CoV-2 Detection in the Nasopharynx Versus Trachea for Patients With Tracheostomies #MMPMID33959969
Smith JD; Correll JA; Stein JL; Kupfer RA; Hogikyan ND; Morrison RJ; Stein AP
Laryngoscope 2021[Oct]; 131 (10): E2634-E2638 PMID33959969show ga
OBJECTIVES/HYPOTHESIS: Patients with tracheostomies have an anatomically altered connection between their upper and lower airways that could impact SARS-CoV-2 testing. Our goal was to evaluate for discordance in SARS-CoV-2 detection in hospitalized patients with COVID-19 and tracheostomies based on the site analyzed. STUDY DESIGN: Retrospective chart review. METHODS: This single-institution study evaluated hospitalized patients with COVID-19 who had tracheostomies placed during their treatment. We analyzed SARS-CoV-2 RNA nucleic acid amplification test (NAAT) results after tracheostomy. All included patients had nasopharyngeal (NP) and tracheal (TR) samples taken within a 48-hour period, allowing us to characterize rate of test concordance. RESULTS: Forty-five patients met our inclusion criteria. Thirty-two (71.1%) patients had entirely concordant results after tracheostomy. However, 13 (28.9%) patients had at least one set of discordant results, the majority of which were NP negative and TR positive. There were no statistically significant differences in demographic or clinical variables, including time to tracheostomy and time to testing, among patients with concordant versus discordant SARS-CoV-2 results. CONCLUSION: This represents the first study to examine SARS-CoV-2 RNA NAAT concordance between NP and TR sites in hospitalized patients with COVID-19 and tracheostomies. One-third of patients demonstrated discordant testing when NP and TR specimens were collected within a 48-hour time period. Thus, patients with tracheostomies may have a higher false-negative rate if only one site is assessed for SARS-CoV-2. We recommend analyzing samples from both the nasopharynx and trachea for these patients until more prospective data exist. LEVEL OF EVIDENCE: 4 Laryngoscope, 131:E2634-E2638, 2021.
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Laryngoscope 2021 ; 131 (10): E2634-E2638
