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The Laparoscopic Appendicitis Score; a Multicenter Validation Study

NCT02029781 · Status: TERMINATED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 342

Last updated 2016-06-01

No results posted yet for this study

Summary

SUMMARY

Rationale: A diagnostic laparoscopy is a frequently used method to confirm the diagnosis appendicitis. However until recently evidence-based laparoscopic criteria for determining appendicitis were not defined. If there is any doubt about the presence of appendicitis the appendix is usually removed. In a single centre prospective pilot study on 134 patients the investigators were able to define the Laparoscopic APPendicitis (LAPP) score. In the current study the investigators will validate the LAPP score in order to decrease the negative appendectomy rate by 50%. Eventually the score should lead to a decrease in morbidity.

Objective: To decrease the negative appendectomy rate by 50%.

Study design: A multicenter prospective validation study

Study population: All patients, ≥18 years, operated with a diagnostic laparoscopy for the clinical suspicion appendicitis. Sample size calculation, performed by a statistician/ epidemiologist of the Trial Coordination Centre, showed the need to analyse 778 patients.

Intervention (if applicable): Patients operated on appendicitis in 2008 and 2009 (n=843), were retrospectively analysed for negative appendectomies. This cohort will serve as the control group. In this control group no intervention was given, as the LAPP score was not yet defined.

In the 778 prospective analysed patients, the LAPP score will be used during a diagnostic laparoscopy. With the LAPP score the investigators intend to halve the number of negative appendectomies.

Main study parameters/endpoints: A decrease in the negative appendectomy rate from 9% to 5%. This decrease should not lead to an increase in missed appendicitis (occurring within 30 days), defined as requiring a surgical re-intervention or as an appendicitis or appendicular infiltrate on an ultrasound or CT-scan.

Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The risk of implementation of the LAPP score is minimal. In theory, the use of the LAPP score might lead to an increase risk in missed appendicitis. This might lead to an increase in morbidity.

Conditions

  • Appendicitis

Interventions

PROCEDURE

LAPP score

Use of the LAPP score during a diagnostic laparoscopy.

Sponsors & Collaborators

  • University of Groningen

    collaborator OTHER

  • University Medical Center Groningen

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2013-09-30
Primary Completion
2016-05-31

Countries

  • Netherlands

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02029781 on ClinicalTrials.gov