APPEndicitis and Laparoscopic Criteria; APPEL Study (APPEL)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01054417
Recruitment Status : Completed
First Posted : January 22, 2010
Last Update Posted : November 17, 2011
Information provided by (Responsible Party):
JW Haveman, University Medical Center Groningen

January 21, 2010
January 22, 2010
November 17, 2011
December 2009
April 2011   (Final data collection date for primary outcome measure)
Accuracy of appendix characterization by histology or clinically [ Time Frame: 3 months ]
Same as current
Complete list of historical versions of study NCT01054417 on Archive Site
  • Readmission [ Time Frame: 3 months ]
  • Re-operation [ Time Frame: 3 months ]
  • Intra-abdominal abcess [ Time Frame: 3 months ]
Same as current
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APPEndicitis and Laparoscopic Criteria; APPEL Study
A Prospective Evaluation to Determine Laparoscopic Criteria for the Diagnosis Appendicitis During a Diagnostic Laparoscopy
A diagnostic laparoscopy is frequently used to confirm the diagnosis of appendicitis. However, laparoscopic criteria for determining appendicitis are not defined. If there is any doubt about the presence of an abnormal appendix, it is usually removed. However, an appendectomy of a negative appendix has a certain morbidity and for that reason it should be avoided. The purpose of this study is to establish laparoscopic criteria for the diagnosis appendicitis during diagnostic laparoscopy.

The UMCG hospital protocol of suspicion of appendicitis includes a diagnostic laparoscopy. The laparoscopic inspection of the appendix is carried out according to a specific protocol. In case of appendicitis the appendix is removed laparoscopically, a normal appendix is not removed. The primary outcome of the study is: appendicitis according to pathologic examination following appendectomy, or appendicitis according to clinical follow-up in case the appendix is not removed.

The clinical diagnosis of appendicitis in the follow-up should be confirmed radiologic examination (ultrasound, CT-scan, MRI) or by a re-operation.

Observational Model: Cohort
Time Perspective: Prospective
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Retention:   Samples Without DNA
Slices of the appendix fixed for pathologic examnination will be retained (standard procedure).
Non-Probability Sample
All patients who will undergo a diagnostic laparoscopy for the clinical diagnosis appendicitis.
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Patients with suspected appendicitis who are to be operated upon by diagnostic laparoscopy
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*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
July 2011
April 2011   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Informed consent
  • Patients who will undergo a diagnostic laparoscopy for suspicion of appendicitis
  • No age or gender limits

Exclusion Criteria:

  • Elective scheduled appendectomy
  • Unable to give informed consent
Sexes Eligible for Study: All
Child, Adult, Older Adult
Contact information is only displayed when the study is recruiting subjects
Not Provided
Not Provided
JW Haveman, University Medical Center Groningen
University Medical Center Groningen
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Principal Investigator: JW Haveman, MD, PhD University Medical Center Groningen, the Netherlands
University Medical Center Groningen
November 2011