PMC9699875_01
(a) Overview of patient preparation. During the perioperative period, the patient was covered by the nasal and surgical drapes. (b) Nasal drape was used to reduce the nostril. (c) All team members used N95 and surgical cloak. (d) The instruments were inserted through the reduced nostril.
SNI-13-504-g001.jpg
PMC9699875_01_SNI-13-504-g001.jpg
F1
A nasal drape (Steri-Drape, 3M, Minnesota, United States) was used to reduce the nostril entry area [Figures 1a-d], and (c) postoperative period: due to the risk of nasopharynx swab after skull base procedures, the suspected cases were tested with oropharynx swabs.