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Enrolling by invitationNCT07915362WSACS-DELPHI-2Updated Nov 6, 2026

WSACS 2026 Delphi Consensus on the Practical Management of Intra-abdominal Hypertension and Abdominal Compartment Syndrome

An observational study in Intra-Abdominal Hypertension and Abdominal Compartment Syndrome, sponsored by Medical University of Lublin. Enrolling by invitation at 1 site in Poland. Open to participants aged 25 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-11-06.

Sponsored by Medical University of Lublin · Observational

Updated Nov 6, 2026Eligibility revisedNewly registeredGo to Updates ↓
Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
70
Ages
25 Years and older
Sex
All
01

Study summary

The Abdominal Compartment Society (WSACS) is updating its 2013 clinical practice guidelines on intra-abdominal hypertension (IAH) and the abdominal compartment syndrome (ACS). Systematic reviews informed the evidence-based recommendations and guidelines, but many practical bedside questions lack direct evidence. This international modified Delphi will seek expert agreement on those statements, reported separately from and clearly distinguished from graded recommendations.

Read the detailed description

This study forms part of the WSACS guideline and recommendations update on intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS).

Candidate statements are derived from the guideline development framework and from gaps identified through the accompanying evidence reviews. Before round 1 of the Delphi, the steering committee categorises statements as potential good practice statements meeting the GRADE Working Group criteria, expert consensus statements, or research priorities.

Good practice statements are considered separately by the guideline panel. Only the candidate expert consensus statements and research priorities are submitted to an international multidisciplinary Delphi panel.

Panelists rate each statement anonymously online as approve, modify, reject or abstain, and may comment. A statement accepted by more than 75% of panelists reaches consensus as worded. One accepted by fewer than 50% is rejected. One accepted by 50% to 75% is revised from the comments and re-rated in the next round, for up to three rounds. Panelists see the aggregate result of each round before the next.

Up to three rounds are planned. Anonymised aggregate feedback is provided to participants between rounds. The study evaluates agreement among experts rather than clinical effectiveness, diagnostic accuracy, or patient outcomes.

The final report will distinguish consensus from evidence-based recommendations and will follow the ACCORD reporting guideline for consensus methods.

02

Conditions studied

  • Intra-Abdominal Hypertension
  • Abdominal Compartment Syndrome

Keywords

  • Delphi
  • consensus
  • intra-abdominal pressure
  • critical care
  • good practice statement
  • expert
  • clinical practice guideline
  • research priorities
03

In context

Intra-Abdominal Hypertension

71 studies on the registry are indexed under Intra-Abdominal Hypertension; 16 are open to participants now.

This study's planned enrollment of 70 is below the median of 98 across 36 observational studies indexed under Intra-Abdominal Hypertension.

Browse Intra-Abdominal Hypertension studies →

Lead sponsor

Medical University of Lublin is the lead sponsor of 62 studies on the registry; 11 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

The criteria were revised on the registry on Nov 6, 2026. See what changed

Ages eligible
25 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

International multidisciplinary clinical and research experts with experience relevant to IAH/ACS: We accept All adults / accepts healthy volunteers (expert panelists, not patients)

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Clinicians or researchers in intensive care, emergency or trauma surgery, anaesthesia, paediatric critical care or nursing,
  • Clinicians with peer-reviewed publications or recognised clinical expertise in IAH/ACS;
  • Clinicians willing to complete all rounds;
  • Clinicians fluent in English.

Exclusion criteria

Exclusion Criteria:

  • Inability to commit to all rounds;
  • undeclared conflict of interest relevant to a statement (managed by abstention from voting on that statement).
05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
70 participants (estimated)
Patient registry
No

Groups and cohorts

  • Panelists

    Other: Delphi structured interview via online survey

Interventions

  • OtherDelphi structured interview via online survey

    An international multidisciplinary panel of clinicians and researchers with recognised expertise in intra-abdominal hypertension, abdominal compartment syndrome, intensive care, surgery, anaesthesiology, or related disciplines. Participants will complete up to three rounds of a structured online modified Delphi consensus process.

06

What researchers measure

Primary outcomes

  1. Proportion of candidate statements reaching consensus

    Proportion of candidate statements reaching consensus, defined as more than 75% agreement.

    Time frame: through completion of the final round, about 12 weeks.

Secondary outcomes

  1. Number of rounds to consensus per statement

    statements rejected (less than 50% agreement); stability of ratings between the final two rounds.

    Time frame: about 12 weeks

  2. Proportion of statements rejected

    Percentage of candidate statements rejected according to the predefined less-than-50% approval criterion

    Time frame: about 12 weeks

  3. Stability of expert ratings

    Changes in approval proportions between the final two rounds for statements assessed in both rounds

    Time frame: about 12 weeks

  4. Proportion of unresolved statements

    Percentage of statements not meeting acceptance or rejection criteria by the final round

    Time frame: about 12 weeks

07

Study locations

1 site
08

References and documents

Publications

  • Nasa P, Wise RD, Smit M, Acosta S, D'Amours S, Beaubien-Souligny W, Bodnar Z, Coccolini F, Dangayach NS, Dabrowski W, Duchesne J, Ejike JC, Augustin G, De Keulenaer B, Kirkpatrick AW, Khanna AK, Kimball E, Koratala A, Lee RK, Leppaniemi A, Lerma EV, Marmolejo V, Meraz-Munoz A, Myatra SN, Niven D, Olvera C, Ordonez C, Petro C, Pereira BM, Ronco C, Regli A, Roberts DJ, Rola P, Rosen M, Shrestha GS, Sugrue M, Velez JCQ, Wald R, De Waele J, Reintam Blaser A, Malbrain MLNG. International cross-sectional survey on current and updated definitions of intra-abdominal hypertension and abdominal compartment syndrome. World J Emerg Surg. 2024 Nov 29;19(1):39. doi: 10.1186/s13017-024-00564-5. PubMed 39609850 ↗
  • Kirkpatrick AW, Roberts DJ, De Waele J, Jaeschke R, Malbrain ML, De Keulenaer B, Duchesne J, Bjorck M, Leppaniemi A, Ejike JC, Sugrue M, Cheatham M, Ivatury R, Ball CG, Reintam Blaser A, Regli A, Balogh ZJ, D'Amours S, Debergh D, Kaplan M, Kimball E, Olvera C; Pediatric Guidelines Sub-Committee for the World Society of the Abdominal Compartment Syndrome. Intra-abdominal hypertension and the abdominal compartment syndrome: updated consensus definitions and clinical practice guidelines from the World Society of the Abdominal Compartment Syndrome. Intensive Care Med. 2013 Jul;39(7):1190-206. doi: 10.1007/s00134-013-2906-z. Epub 2013 May 15. PubMed 23673399 ↗
  • Nasa P, Jain R, Juneja D. Delphi methodology in healthcare research: How to decide its appropriateness. World J Methodol. 2021 Jul 20;11(4):116-129. doi: 10.5662/wjm.v11.i4.116. eCollection 2021 Jul 20. PubMed 34322364 ↗

Individual participant data

Plan to share: No — No individual responses shared for privacy; aggregate round results published in the supplement.

09

Updates

2 registry updates since Sep 25, 2026
Eligibility
1 inclusion criterion edited, 3 added; 1 exclusion criterion edited, 1 added
What changed in the criteria
Inclusion criteria
  • EditedClinicians or researchers in intensive care, emergency or trauma surgery, anaesthesia, paediatric critical care or nursing, with peer-reviewed publications or recognised clinical expertise in IAH/ACS; willing to complete all rounds; fluent in English.
  • AddedClinicians with peer-reviewed publications or recognised clinical expertise in IAH/ACS;
  • AddedClinicians willing to complete all rounds;
  • AddedClinicians fluent in English.
Exclusion criteria
  • AddedInability to commit to all rounds;
  • EditedInability to commit to all rounds; undeclared conflict of interest relevant to a statement (managed by abstention from voting on that statement).
Nov 6, 2026
Registered
First appeared on the registry
Nov 4, 2026
Show all 2 updates
  1. Nov 6, 2026
    Eligibility 1 inclusion criterion edited, 3 added; 1 exclusion criterion edited, 1 added
    What changed in the criteria
    Inclusion criteria
    • EditedClinicians or researchers in intensive care, emergency or trauma surgery, anaesthesia, paediatric critical care or nursing, with peer-reviewed publications or recognised clinical expertise in IAH/ACS; willing to complete all rounds; fluent in English.
    • AddedClinicians with peer-reviewed publications or recognised clinical expertise in IAH/ACS;
    • AddedClinicians willing to complete all rounds;
    • AddedClinicians fluent in English.
    Exclusion criteria
    • AddedInability to commit to all rounds;
    • EditedInability to commit to all rounds; undeclared conflict of interest relevant to a statement (managed by abstention from voting on that statement).
  2. Nov 4, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07915362
Lead sponsor
Medical University of Lublin
Responsible party
Manu Malbrain (Research Professor First Department Anaesthesia and Intensive Therapy, Medical University of Lublin) — Principal investigator
First posted
Nov 4, 2026
Start date
Nov 15, 2026 (estimated)
Primary completion
Jul 31, 2027 (estimated)
Completion
Jul 31, 2027 (estimated)
Last update
Nov 6, 2026

Study contacts

Prashant Nasa, MD
study chair · Wolverhampton Hospital
Manu L Malbrain, MD, PhD
principal investigator · Medical University of Lublin

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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