This single-centre, single-blind, randomised controlled study with parallel-group design was conducted in Yun Ling, Taiwan between May 2019 and August 2019. Participants were randomly allocated to an intervention (mouth care using 0.12% CHX before intubation) or control (standard care) group on a 1:1 basis. This study was approved by the institutional review board of National Taiwan University Hospital, Taiwan (IRB No.201806086RINB). Each participant completed written informed consent after explanation of this study and advised that they could withdraw anytime.
Participants were recruited at the operation room of a teaching hospital. Participants were included if they met the following criteria: 18-80 years of age, American Society of Anesthesiologists, ASA) class 1-3, scheduled for surgery under endotracheal tube intubation general anesthesia. Patients were excluded if they were diagnosed with upper or lower respiratory tract disease, including COPD, cold, had oral ulcer, scheduled to have a respiratory-related surgical procedure, had endotracheal tube intubated.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
210
oral care using 20mL of 0.12% CHX and gargling with 30 seconds.
National Taiwan University Hospital
Taipei, Taiwan
Bacterial Colonization (Gram stain)
Bacterial Colonization
Time frame: at baseline (30 minutes before surgery started)
Bacterial Colonization (Gram stain)
Bacterial Colonization
Time frame: at removal of endotracheal tube (3 minutes after surgery ended and removal of endotracheal tube )
Bacterial Colonization (Gram stain)
Bacterial Colonization
Time frame: after removal of endotracheal tube at recovery room (15 minutes after surgery ended)
Breathing odor assessment using questionnaire
Breathing odor assessment
Time frame: at baseline (30 minutes before surgery started)
Breathing odor assessment using questionnaire
Breathing odor assessment
Time frame: at insertion of endotracheal tube
Breathing odor assessment using questionnaire
Breathing odor assessment
Time frame: after removal of endotracheal tube and at recovery room (15 minutes after surgery ended)
Breathing odor assessment using halitosis detector
Breathing odor assessment
Time frame: at baseline (30 minutes before surgery started)
Breathing odor assessment using halitosis detector
Breathing odor assessment
Time frame: after removal of endotracheal tube and at recovery room (15 minutes after surgery ended)
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