Incidence and Risk Factors of Intraoperative Hypothermia in Adult Patients After Protocol Implementation

NCT07470801 | Active Not Recruiting

• 1 other identifier: 053/2569(IRB2)
• Study Type: observational
• Target: 361
• Locations: 1 country
• Sites: 1

Brief Summary

Inadvertent intraoperative hypothermia is one of the most common complications in patients undergoing anesthesia. This condition is strongly associated with several adverse clinical. At Siriraj Hospital, a previous study revealed a high incidence rate of 74.4%, with only 16.3% of patients receiving intraoperative temperature monitoring. In response to these findings, Siriraj Hospital implemented a perioperative temperature management guideline in July 2024. However, it remains to be evaluated whether the implementation of this protocol has led to a meaningful change in clinical practice. The primary concern is whether the adherence to temperature monitoring for surgeries exceeding one hour has improved from the historical rate of 16.3%, and subsequently, whether this has resulted in a decreased incidence of hypothermia.

Conditions

Hypothermia Following Anesthesia

Keywords

Hypothermia; Intraoperative hypothermia

Outcome Measures

Primary Outcomes (1)

• Incidence of intraoperative hypothermia

  Presence of hypothermia defined as core temperature less than 36 C

  November to December 2025

Secondary Outcomes (8)

• The proportion of patients who received intraoperative temperature monitoring

  November to December 2025

• Time to onset hypothermia, duration of hypothermia, lowest temperature

  November to December 2025

• Incidence of postoperative hypothermia

  November to December 2025

• Recovery time

  November to December 2025

• Blood loss

  November to December 2025

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Adult patients undergoing non-cardiac surgery under anesthetic care at Siriraj Hospital, a tertiary's care hospital in Bangkok, Thailand.

You may qualify if:

• Adult patients undergoing non-cardiac surgery under anesthesia service Patients undergoing surgery after the implementation of the temperature management protocol (from July 2024 onwards)

You may not qualify if:

• Procedures performed under local anesthesia or monitored anesthetic care Anesthesia duration of less than 60 minutes

Sponsors & Collaborators

• Siriraj Hospital: lead

Study Sites (1)

Siriraj Hospital

Bangkok, Bangkok, 10700, Thailand

Location

MeSH Terms

Conditions

Hypothermia

Condition Hierarchy (Ancestors)

Body Temperature Changes; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: RETROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor

Study Record Dates

• First Submitted: March 6, 2026
• First Posted: March 13, 2026
• Study Start: February 27, 2026
• Primary Completion (Estimated): October 1, 2026
• Study Completion (Estimated): June 1, 2027
• Last Updated: March 13, 2026

Record last verified: 2026-03

Locations

TH (1)