Adhesion Prevention in ASBO Surgery Using 4DryField® PH

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

189 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-07-15

Study Completion Date

2027-07-15

Brief Summary

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Post-surgical adhesions occur in up to 90% of abdominal surgeries, often leading to complications like adhesive small bowel obstruction (ASBO) and chronic pain. They result from imbalanced healing processes influenced by growth factors, fibroblast activity, and genetic predispositions. While surgery can relieve ASBO, it frequently causes new adhesions, with recurrence rates up to 40%. Anti-adhesion barriers, such as the starch-based 4DryField® PH, form a temporary gel barrier to support healing. Though promising, its role in preventing ASBO recurrence is not well studied. This study evaluates whether intra-operative use of 4DryField® PH reduces ASBO recurrence over 12 months and compares perioperative outcomes in treated vs. untreated patients.

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Detailed Description

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Post-surgical adhesions are a common complication of abdominal surgery, with an occurrence rate of approximately 79-90%, leading to significant morbidity such as adhesive small bowel obstruction (ASBO) and chronic pain (1,2). These adhesions result from increased extracellular matrix production, reduced fibrinolytic activity, and the influence of growth factors like TGF-beta and VEGF, along with fibroblast proliferation(1). Genetic predispositions-affecting pathways such as TGF-β, VEGF, PAI-1, MMPs, and various pro-inflammatory cytokines-may increase the risk of adhesion formation(2-5).

Surgical management of ASBO resolves acute symptoms but often exacerbates the underlying issue by inducing further peritoneal trauma. Recurrence rates remain high-reported in up to 40% of patients-and complications from repeated adhesiolysis include increased operative time, bowel injury, and postoperative morbidity(6).

Various strategies have been explored in different surgical fields to prevent adhesion formation, including the use of physical antiadhesion barriers(7-9). Among these, 4DryField® PH, a plant-derived starch powder, has been shown to be safe and effective in clinical and experimental studies(8,10). When hydrated with saline, the powder forms a biocompatible gel that acts as a temporary barrier to physically separate traumatized serosal surfaces and allow for proper mesothelial regeneration.

Although the use of 4DryField® PH has been studied in different settings, there is limited prospective evidence evaluating its role in preventing recurrence of ASBO.

The present study aims to fill this gap by assessing whether intraoperative application of 4DryField® PH during surgery for ASBO reduces the recurrence rate during a 12-month follow-up, and by comparing perioperative outcomes between treated and untreated patients.

Conditions

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Adhesive Small Bowel Obstruction Postoperative Abdominal Adhesions Bowel Obstruction Abdominal Surgery Complications

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Antiadhesion Group

Patients undergoing surgery for ASBO who receive intraoperative 4DryField® PH application.

No interventions assigned to this group

No Antiadhesion Group

Patients undergoing surgery for ASBO without use of any antiadhesion agent.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

Age ≥ 18 years

* Undergoing surgical treatment for adhesive small bowel obstruction (ASBO)
* Ability and willingness to provide informed consent
* Willingness to adhere to follow-up visits