The relationship between body mass index and decreases in the core temperature under forced-air warming during upper abdominal surgery

The relationship between body mass index and decreases in the core temperature under forced-air warming during upper abdominal surgery - The relationship between body mass index and decreases in the core temperature under forced-air warming during upper abdominal surgery

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000013707

Enrollment

100

Registered

2014-04-15

Start date

2011-04-01

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Patients aged 20 to 80 years old who has undergone elective open upper abdominal surgery are enrolled in this study.

Interventions

Anesthsia: All patients underwent combined epidural and general anesthesia. An epidural catheter was inserted via an interspace between Th6 and Th8 using a standard technique. Epidural anesthesia was

Convective Warmer, EQ-5000, Smiths Medical, MN, USA) was used with medium temperature setting (40 degrees Celsius). Air blanket (Level 1TM

Snuggle WarmTM

Upper Body Blanket, SW 2003, Smiths Medical, MN, USA) covers the anterior extremity of patients from the over side of the body. No amino acid transfusion was used. Pre-warming was not performed.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients aged 20 to 80 years old who had undergone elective open upper abdominal surgery (1) from April 1st in 2011 to March 31st in 2012 and (2) from January 15th in 2014 to January 14th in 2015 were enrolled in this study.

Exclusion criteria

Exclusion criteria: Patients were excluded if one of the following conditions existed: preoperative fasting time>12 hours, coagulopathy (prothrombin time/ international normalized ratio>1.5, activated partial thromboplastin time>one and a half as much as control, platelet count<100000/m3), thyroid disorder, neurological deficits, or history of head injury, preoperative fever, evidence of current infection, the use of vasoactive drugs during surgery

Design outcomes

Primary

Measure	Time frame
The difference between the core temperature of elapsed time zero and minimum temperature during surgery was defined as maximum decrease of the core temperature.	—

Secondary

Measure	Time frame
Blood loss (g) during surgery, Length of hospital stay (postoperative days), shivering, surgical site infection, cardiovascular events.	—

Countries

Japan

Contacts

Public ContactKato Takao

Ichikawa General Hospital, Tokyo Dental College Department of Anesthesiology

tkatoh@tdc.ac.jp047-322-0151

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026