期刊
CLINICAL OTOLARYNGOLOGY
卷 48, 期 4, 页码 623-629出版社
WILEY
DOI: 10.1111/coa.14056
关键词
COVID-19; hypertonic alkaline solution; nasopharyngeal viral load; povidone-iodine
This study investigated the effectiveness of nasal irrigation with saline, povidone-iodine (PVP-I) 1%, and a combination of hypertonic alkaline and 1% PVP-I against SARS-CoV-2. The results showed that the use of the combination of hypertonic alkaline and 1% PVP-I solution was more effective in reducing the nasal viral load.
Objective The present study aimed to investigate the in vivo activity of nasal irrigation (NI) with saline, NI with povidone-iodine (PVP-I) 1%, NI with a mix of hypertonic alkaline and PVP-I 1% against Severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2).Design This study was a prospective randomised clinical trial.Setting A multicenter study involving tertiary care centres.Participants The study included adult outpatients whose qualitative SARS-CoV-2 RT-PCR tests in nasopharyngeal swabs were positive. One hundred twenty patients were divided into four equal groups. Standard COVID-19 treatment was given to Group 1, NI containing saline was added to patients' treatment in Group 2, NI containing 1% PVP-I solution was added to patients' treatment in Group 3, and NI containing 1% PVP-I solution and the hypertonic alkaline solution was added to patients' treatment in Group 4.Main Outcome Measures On the first day of diagnosis (Day 0), nasopharyngeal swab samples were taken, on the third and fifth days the nasopharyngeal viral load (NVL) reduction in quantitative RT-PCR test was calculated.Results Between the zeroth to third days and zeroth to fifth days, the NVL reduction was significant in all groups (p < .05). In paired comparisons of groups, the NVL decrease in Group 4 in the first 3 days was significantly lower than all groups (p < .05). The NVL decrease in Groups 3 and 4 in the first 5 days were significantly lower than Group 1 (p < .05).Conclusion This study revealed that the use of NI of 1% PVP-I and the hypertonic alkaline solution mixture was more effective in reducing NVL.
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