Ultrasonographic Abdominal Fat Thickness and Driving Pressure During Prone Spinal Surgery

Starting soon

Conditions studied: Respiratory Mechanics

In brief

This prospective observational study aims to evaluate the association between preoperative abdominal subcutaneous fat thickness measured by ultrasonography and intraoperative driving pressure in adult patients undergoing elective spinal surgery in the prone position under general anesthesia. Anthropometric measurements including body mass index, waist circumference, waist-to-height ratio, and neck circumference will also be evaluated for their association with respiratory mechanics. No additional intervention beyond routine clinical care will be performed.

Key facts

Study ID

NCT07723690

Run by

Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey

People needed

120

Starts

2026-07-30

Expected to finish

2026-11-30

Last updated by the study team

2026-07-23

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Adults aged 18 years or older Elective spinal surgery General anesthesia Prone position ASA physical status I-III Body mass index 18.5-39.9 kg/m²

You may not qualify if…

• Emergency surgery Pregnancy Severe restrictive or obstructive pulmonary disease Hemodynamic instability Body mass index <18.5 or ≥40 kg/m² Incomplete study measurements

Full record on ClinicalTrials.gov

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