General information and data sources
After establishment of the optimization measures, 321 patients for
gastrointestinal surgery were selected from 2017.12 to 2019 .02 to
examine whether the measures were effective. The surgery preparation
process for patients in the optimization group is led by the surgeon in
our department and is performed in close cooperation with the surgeon,
nurse, and anesthesiologist to implement the optimization measures
established in the discussion. Patients in other departments composed
the control group (the surgeons, anesthesiologists, and operating room
nurses in control group were not informed about the content of this
study. The data were obtained from operating room monitoring recording).
The control group of anesthesiologists, surgeons, and operating room
nurses performed the routine procedures.
Inclusion criteria: 1, 18 to 75 years old; 2, Gastrointestinal
surgery; 3, General anesthesia for tracheal intubation; 4. Urinary
catheterization in the operating room. Exclusion criteria: An
unexpected situation that caused the operation procedure to be
delayed(one 74-year-old man’s false teeth fall into epiglottis during
orotracheal intubation, another 65-year-old man has difficult to insert
catheter and then had cystostomy, the data of the above two patients
were excluded from analysis because they are outlier). Firstly, we
recorded the start time of anesthesia induction, start time and end time
of urinary catheterization, start time and end time of disinfection,
start time of operation of the patients in the supine position
(catheterizing on the operating table before disinfection). Then
calculated the time from start of anesthesia to beginning of urinary
catheter, catheterization time, time from catheterization to start of
disinfection, disinfection time, draping time, time from end of draping
to start of surgery. we also recorded the start of anesthesia induction,
position start time and end time, disinfection start time and end time
of disinfection and draping, urinary catheterization start time and end
time, draping end time, operation start time of the surgical patients in
lithotomy position (catheterizing on the operating table after
disinfection), and calculated the time from the start of anesthesia to
adjusting posture, the time of adjusting posture, the time from the end
of the posture to the start of the disinfection, the time of the
disinfection, catheterization, and draping, the time from the end of
draping to the start of surgery.