Comparison of On-hours Versus Off-hours Anesthesia of Hip Surgery

Comparison of Anesthesia Beginning at On-hours Versus Off-hours on Outcomes in Patients Undergoing Hip Surgery

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT04957121

Enrollment

1843

Registered

2021-07-12

Start date

2021-07-02

Completion date

2021-08-20

Last updated

2021-08-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Off-hours Anesthesia

Keywords

off-hours, hip surgery, perioperative care

Brief summary

To explore the impact of the begin time of anesthesia on in-hospital mortality and early prognosis of patients undergoing hip surgery.

Detailed description

The patients undergoing hip surgery between were divided into the on-hours group or the off-hours group depending on the begin time of anesthesia in this retrospective cohort study. In-hospital mortality and early prognosis were compared between the two groups.

Interventions

OTHERon-hours

If the begin time of anesthesia was between 8:00 to 17:59, it was defined as on-hours.

OTHERoff-hours

If the start time of anesthesia was between 18:00 to 7:59 or the end time of anesthesia was later than 20:00, it was defined as off-hours.

Study design

Observational model

COHORT

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* All patients who had hip surgery between January 1, 2015, and December 31, 2020 in Tongji Hospital.

Exclusion criteria

* under 18 years old * had incomplete perioperative data

Design outcomes

Primary

Measure	Time frame	Description
in-hospital mortality	up to 7 months	the mortality during hospitalization

Secondary

Measure	Time frame	Description
postoperative LOS	up to 4 months postoperatively	postoperative hospital length of stay
total LOS	up to 7 months	total hospital length of stay
ICU admission	within 3 days postoperatively	the ratio of ICU admission
postoperative complications	within 3 days postoperatively	including renal dysfunction, anemia, hypotension, deep vein thrombosis, arrhythmia, coronary artery disease or heart failure, pulmonary infection, electrolyte disturbance, hyoxemia and delirium
intraoperative fluid management	intraoperative	including blood loss, urine volume, concentrated red blood cells, fresh frozen plasma, equilibrium liquid and colloidal solution
intraoperative sufentanil	intraoperative	the dosage of intraoperative sufentanil
using vasoactive drugs	intraoperative	whether using vasoactive drugs or not intraoperatively

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026