Updated Abdominal Compartment Society Consensus Definitions

NCT07563842 | Enrolling By Invitation DMC

• 2 other identifiers: MUL2025WSACS001PROSPERO CRD420251167137
• Study Type: observational
• Target: 60
• Locations: 1 country
• Sites: 1

Brief Summary

An international team of experts is working on a project called updated WSACS consensus definitions. The goals of this study are to:

1. 1.To generate expert consensus on the definitions and classification of IAH and ACS.
2. 2.To generate expert consensus on definitions regarding the pathophysiology of IAH and ACS.
3. 3.To generate consensus on definitions regarding the methods of measurement of intra-abdominal pressure (IAP).

Conditions

Abdominal Hypertension; Abdominal Compartment Syndrome

Keywords

abdominal hypertension; abdominal compartment syndrome; definitions; pathophysiology; measurement; intra-abdominal pressure; intra-abdominal volume

Outcome Measures

Primary Outcomes (1)

• Level of consensus on definitions of intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS)

  Proportion of predefined definition statements for IAH and ACS reaching consensus among expert panellists, measured using a structured Delphi process. Consensus is defined a priori as ≥80% agreement on a 5-point Likert scale (ratings of 4-5 indicating agreement). Outcomes will include: Number and percentage of statements reaching consensus Median and interquartile range (IQR) of Likert scores per statement Stability of responses across Delphi rounds

  3-6 months

Secondary Outcomes (2)

• Level of consensus on pathophysiological concepts of IAH and ACS

  3-6 months

• Level of consensus on measurement methods for intra-abdominal pressure (IAP)

  3-6 months

Study Arms (1)

Panelist

Other: Delphi study

Interventions

Delphi study OTHER

structured interview via online survey

Panelist

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

Inclusion Criteria: Panellists will be identified based on either of the following criteria At least 5 years of clinical experience as a staff member in Anesthesiology, Surgery or Intensive Care Medicine with involvement in care of patients with postoperative complications Author of at least one publication (observational studies or randomised controlled trials) on intra-abdominal hypertension or abdominal compartment syndrome. For patients and public involvement Individuals who have either personally experienced IAH or ACS following surgery or ICU within the last 5 years or, primary caregivers of such patients will be recruited as patient care representatives. Proficiency in English is required. To mitigate potential bias, patient care representatives mustn't maintain a professional or advisory relationship with the steering committee or panellists. Co-authors from previous WSACS survey published in 2024, former or current WSACS ambassadors, representative from WSES, ESAIC, ES

You may not qualify if:

• None

Sponsors & Collaborators

• Medical University of Lublin: lead

Study Sites (1)

Medical University of Lublin

Lublin, 20090, Poland

Location

Related Publications (27)

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  BACKGROUND

Related Links

• WSACS

MeSH Terms

Conditions

Intra-Abdominal Hypertension

Condition Hierarchy (Ancestors)

Compartment Syndromes; Muscular Diseases; Musculoskeletal Diseases; Vascular Diseases; Cardiovascular Diseases

Study Officials

• Prashant Nasa, MD

  The Royal Wolverhampton NHS Trust Wolverhampton, UK

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Target Duration: 6 Months
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor Critical Care Research

Study Record Dates

• First Submitted: January 8, 2026
• First Posted: May 4, 2026
• Study Start: October 13, 2025
• Primary Completion (Estimated): July 31, 2026
• Study Completion (Estimated): July 31, 2026
• Last Updated: May 4, 2026

Record last verified: 2026-04

Data Sharing

• IPD Sharing: Will not share

Locations

PL (1)