HERNIIA: Hernia Exploration oR Not In Infants Analysis

Sponsor
Amsterdam UMC, location VUmc (Other)
Overall Status
Recruiting
CT.gov ID
NCT03623893
Collaborator
ZonMw: The Netherlands Organisation for Health Research and Development (Other)
378
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Study Details

Study Description

Brief Summary

This study evaluates the effectiveness and cost-effectiveness of contralateral surgical exploration during unilateral inguinal hernia repair in children younger than six months with a unilateral inguinal hernia. In half of the participants contralateral exploration will be performed, while in the other half only unilateral inguinal hernia repair will be performed.

Condition or Disease Intervention/Treatment Phase
  • Procedure: Contralateral exploration
N/A

Detailed Description

There is a high incidence of metachronous (i.e. a second) contralateral inguinal hernia (MCIH) in infants with an inguinal hernia (5-30%, most studies report 10%), with the highest risk in infants aged less than 6 months. Metachronous hernia is associated with the risk of incarceration and general risks and costs of a second operation. This can potentially be avoided by contralateral exploration at the first operation. On the other hand contralateral exploration may turn out to be unnecessary, is associated with additional operating time and cost, and may be associated with additional complications of surgery (including testicular atrophy, wound infection) and anesthesia. Both policies to routinely explore the contralateral side or not are used in the treatment of unilateral inguinal hernias in children. There is no high-grade level of evidence of the superiority of one of either policy.

Study Design

Study Type:
Interventional
Anticipated Enrollment :
378 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Intervention Model Description:
Multicenter randomized controlled trial.Multicenter randomized controlled trial.
Masking:
Double (Investigator, Outcomes Assessor)
Masking Description:
Participants and care providers are aware of allocation; masking is impossible because of the nature of the intervention.
Primary Purpose:
Treatment
Official Title:
A Randomized Controlled Trial to Study the Effectiveness and Cost-effectiveness of Contralateral Surgical Exploration During Unilateral Inguinal Hernia Repair in Children.
Actual Study Start Date :
Apr 17, 2019
Anticipated Primary Completion Date :
Mar 1, 2023
Anticipated Study Completion Date :
Apr 30, 2023

Arms and Interventions

Arm Intervention/Treatment
Other: Intervention group

Unilateral inguinal hernia repair with contralateral exploration.

Procedure: Contralateral exploration
Surgery eventually performed when a patent processus vaginalis or hernia exists on the other side than the side on which the child has to be operated on, will be exactly the same as the inguinal hernia repair on the 'symptomatic' side. Exploration of the contralateral side will increase anaesthesia time by 10-15 minutes.

No Intervention: Control group

Unilateral inguinal hernia repair.

Outcome Measures

Primary Outcome Measures

  1. Proportion of infants that undergo a second operation [One year after primary hernia repair]

    The number of infants that undergo a second operation related to unilateral inguinal hernia within one year after primary inguinal hernia repair

Secondary Outcome Measures

  1. Total duration of operation(s) including anaesthesia time and hospital admission(s) [One year after primary hernia repair]

    Total duration of operation(s) including anaesthesia time and total duration of hospital admission(s) related to inguinal hernia within one year after primary repair

  2. Complications of anaesthesia and surgery [During hospital admission, four weeks and one year after primary hernia repair]

    Occurence of wound infection, hematoma, hydrocele, testicular atrophy, apnoea or recurrence of inguinal hernia, related to hernia repair.

  3. Health-related quality of life (HRQOL) of the operated infant [At baseline before surgery, 4 weeks and one year after primary hernia repair and, if relevant, four weeks after re-operation]

    HRQOL of the operated infants is measured by the TAPQOL (TNO-AZL Preschool Children Quality of Life), a parent-reported questionnaire that is clustered into 12 multi-item scales, with higher scores (range 0-100) indicating better HRQOL.

  4. Parental distress and anxiety [At baseline before surgery, 4 weeks and one year after primary hernia repair and, if relevant, before and four weeks after re-operation]

    Parental distress and anxiety of the families of the operated infants is measured by 1) State-Trait Anxiety Inventory (STAI), used as an indicator of parental distress, and 2) Distress Thermometer for Parents (DT-P), a well-validated, brief screening instrument that is frequently used in clinical practice in the Netherlands as a quick screener to identify distress and everyday problems in parents of children who need medical treatment.

Other Outcome Measures

  1. Economic evaluation [Four weeks and one year after primary hernia repair and, if relevant, four weeks after re-operation]

    Total health care costs associated with each strategy, assessed by a retrospective cost questionnaire and the iMTA Productivity Cost Questionnaire (iPCQ).

Eligibility Criteria

Criteria

Ages Eligible for Study:
N/A to 6 Months
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:

Infants aged younger than six months at first presentation with a primary unilateral inguinal hernia undergoing open hernia repair are considered eligible for inclusion.

Exclusion Criteria:

Infants with (1) incarcerated inguinal hernia requiring urgent surgery, (2) a ventricular-peritoneal drain, (3) non-descended testis.

Contacts and Locations

Locations

Site City State Country Postal Code
1 Amsterdam UMC, Vrije Universiteit Amsterdam Amsterdam Netherlands
2 Emma Children's Hospital, Amsterdam UMC, University of Amsterdam Amsterdam Netherlands
3 Juliana Children's Hospital, HagaZiekenhuis Den Haag Netherlands
4 University Medical Center Groningen Groningen Netherlands
5 Maastricht University Medical Center Maastricht Netherlands
6 Erasmus MC - Sophia Children's Hospital Rotterdam Netherlands
7 Máxima Medical Center Veldhoven Netherlands

Sponsors and Collaborators

  • Amsterdam UMC, location VUmc
  • ZonMw: The Netherlands Organisation for Health Research and Development

Investigators

None specified.

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
K.M.A. Dreuning, Coordinating Investigator HERNIIA trial, Amsterdam UMC, location VUmc
ClinicalTrials.gov Identifier:
NCT03623893
Other Study ID Numbers:
  • 2017.596
  • 852001903
First Posted:
Aug 9, 2018
Last Update Posted:
Oct 13, 2021
Last Verified:
Oct 1, 2021
Individual Participant Data (IPD) Sharing Statement:
Yes
Plan to Share IPD:
Yes
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by K.M.A. Dreuning, Coordinating Investigator HERNIIA trial, Amsterdam UMC, location VUmc
Additional relevant MeSH terms:

Study Results

No Results Posted as of Oct 13, 2021