Table 2

Delta times calculated by the timestamps recorded
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

ORB: operating room block.

AR: anesthetic room.

OR: operating room.

NA: nurse anesthetist.

RR: recovery room.

ICU: intensive care unit.

pts: patients.

Agnoletti et al.

Agnoletti et al. BMC Surgery 2013 13:7   doi:10.1186/1471-2482-13-7

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