Neurosensory dysfunction: a diagnostic marker of early COVID-19
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Objectives To detailly described the neurosensory dysfunction, including hyposmia, hypogeusia and tinnitus, in patients with COVID-19. Methods Clinical characteristics and oropharyngeal swabs were obtained from 86 patients with COVID-19 hospitalized in Guangzhou Eighth People’s Hospital. Chronological analysis method was used to detailly clarify the neurosensory dysfunction. The cycle threshold (Ct) values were used to approximately indicate viral load. Results Forth-four (51.2%) patients had neurosensory dysfunction: hyposmia (34, 39.5%), hypogeusia (33, 38.4%), and tinnitus (3, 3.5%). Neurosensory dysfunction was significantly more common in patients under 40 years old (p=0.001) or women (p=0.006). Hyposmia and hypogeusia coexisted in 23 (26.7%) patients. The interval between onset of hyposmia and hypogeusia was 0.7±1.46 days. The interval from onset of hyposmia and hypogeusia to typical symptoms was 0.22±4.57 and 0.75±6.77 days; the interval from onset of hyposmia and hypogeusia to admission was 6.06±6.68 and 5.76±7.68 days; and the duration of hyposmia and hypogeusia was 9.09±5.74 and 7.12±4.66 days, respectively. The viral load was high since symptoms onset, peaked within the first week, and then gradually declined. Conclusions The neurosensory dysfunction tends to occur in the early stage of COVID-19, and it could be used as a marker for early diagnosis of COVID-19
Link to resourcehttps://doi.org/10.1016/j.ijid.2020.06.086
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