Patients
nasal malformation, mental illness, neurological diseases, nasal trauma
CHRONIC SINUSITIS, NEUROLOGICAL DISEASE, CARDIOVASCULAR DISEASE
Patients scheduled for FESS at the Shanghai General Hospital, China from September 18th, 2019 to December 16th, 2020 due to chronic sinusitis were screened for eligibility. Inclusion criteria were: age over 18 years old; American Society of Anesthesiologists Classification (ASA) class I–II with no serious cardiovascular disease; and normal preoperative liver and kidney function. Patients were excluded if they met the following criteria: ASA III-IV, severe cardiovascular disease, or poor blood pressure control; history of mental illness, neurological diseases, or usage of sedative or antipsychotic drug; nasal malformation, history of nasal trauma or implantation of nasal prosthesis. Written informed consent was obtained from all participants.