Ultrasonographic Abdominal Fat Thickness and Driving Pressure During Prone Spinal Surgery
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- This is an observational study: the protocol does not assign a study treatment.
- Who it may be relevant to
- Registry conditions: Respiratory Mechanics. Basic parameters: 18 years — 65 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Association Between Ultrasonographic Abdominal Subcutaneous Fat Thickness and Intraoperative Driving Pressure in Adult Patients Undergoing Elective Prone Spinal Surgery: A Prospective Observational Study
Overview
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.
Primary outcome measures
- Intraoperative Driving Pressure [Time frame: 10 minutes after prone positioning, before surgical manipulation]
Eligibility criteria
Inclusion criteria
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
Exclusion criteria
Emergency surgery Pregnancy Severe restrictive or obstructive pulmonary disease Hemodynamic instability Body mass index <18.5 or ≥40 kg/m² Incomplete study measurements
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Cohort
Study locations
Center list to be confirmed — check the primary protocol.
Identifiers
NCT: NCT07723690 · SAH-2026-107