Surgical Start Time and Prognosis

January 23, 2025 updated by: Ji-Hoon Sim, Asan Medical Center

Association Between Surgical Start Time and Postoperative Mortality, Morbidity, and Healthcare Utilization in Elective Non-cardiac Surgeries: a Retrospective, Single-center Study Using Propensity Score Matching

Surgical start times significantly impacted mortality, morbidity, and resource utilization, particularly in high-risk patients.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

291051

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

The study population includes adult patients aged 18 years or older who underwent elective non-cardiac surgeries at a tertiary hospital. Patients with emergency surgeries, incomplete data on surgical start times, or missing follow-up information were excluded from the analysis. The study focuses on evaluating the impact of surgical start times (morning, afternoon, and nighttime) on postoperative outcomes, including mortality, complications, and ICU admission.

Description

Inclusion Criteria:

  • Patients aged 18 years or older
  • Patients who underwent non-cardiac surgery

Exclusion Criteria:

  • Emergency surgeries
  • Cadaver surgeries
  • Transplantation surgeries
  • Patients with incomplete or missing data, such as follow-up information, operation start times, or laboratory values

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
30-Day Postoperative Mortality
Time Frame: 30 days post-surgery
"The primary outcome measure is the incidence of 30-day postoperative mortality in patients undergoing non-cardiac surgeries. Mortality is defined as death occurring within 30 days following the surgery. The study aims to evaluate the association between surgical start times (morning, afternoon, and nighttime) and the risk of mortality
30 days post-surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Asan Medical Center

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 3, 2022

Primary Completion (Actual)

December 30, 2024

Study Completion (Actual)

January 20, 2025

Study Registration Dates

First Submitted

January 20, 2025

First Submitted That Met QC Criteria

January 20, 2025

First Posted (Actual)

March 25, 2025

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

January 23, 2025

Last Verified

June 1, 2022

More Information

Terms related to this study

Other Study ID Numbers

  • AMC 2022-0755

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

The dataset used and/or analyzed during the current study is available from the corresponding author upon reasonable request.

Drug and device information, study documents

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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