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Table 2 Delta times calculated by the timestamps recorded

From: Operating room data management: improving efficiency and safety in a surgical block

n° of delta times and description

Formula

1 Patient moving time from ward to ORB

Entrance ORB – ward exit

2 Waiting time in ORB reception (AR induction)

Identification by NA – entrance ORB

3 Waiting time in ORB reception (OR induction)

Identification by NA – entrance ORB

4 Waiting time for anesthesia in AR

Start anesthesia – entrance AR

5 Waiting time for anesthesia in OR

Start anesthesia – entrance OR

6 Anesthesia time

End anesthesia – start anesthesia

7 Sum of anesthesia time and transport to OR

Identification by NA – entrance in OR

8 Transport time from AR to OR

Entrance in OR – end anesthesia

9 Waiting time in OR

Start surgical procedure – entrance in OR

10 Surgical time

End surgical procedure – start surgical procedure

12 Total pre-surgery time

Exit OR – end surgical procedure

11 Awakening time

Start surgical procedure – identification by NA

13 Total time from admission in ORB

To surgical starting time start surgical procedure – entrance ORB

14 Stay time in OR

Exit OR – entrance OR

15 Waiting time to come back in ward

Exit OR – exit ORB

16 Transport time from OR to RR

Entrance RR – exit OR

17 Stay time in RR

Exit RR – entrance RR

18 Waiting time at reception

Identification by healthcare assistant – exit ORB

19 Transport time to come back in ward

Ward re-entry – exit ORB

20 Stay time in ORB

Exit ORB – entrance ORB

21 Out ORB - transport in ICU

Transport ICU – exit ORB

22 Turnover time

Entrance OR next pts – exit OR previous pts

23 Over-time

Scheduled end of the daily work – exit OR last case

24 Start time tardiness

Scheduled start of the daily work – start surgery 1°case

25 Under utilization

Scheduled end of the daily work – exit OR last case

  1. ORB: operating room block.
  2. AR: anesthetic room.
  3. OR: operating room.
  4. NA: nurse anesthetist.
  5. RR: recovery room.
  6. ICU: intensive care unit.
  7. pts: patients.