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Planned relaparotomy versus relaparotomy on demand in abdominal sepsis: a randomised, multi-center, clinical trial
ISRCTN ISRCTN51729393
ClinicalTrials.gov identifier
Public title Planned relaparotomy versus relaparotomy on demand in abdominal sepsis: a randomised, multi-center, clinical trial
Scientific title
Acronym RELAP trial
Serial number at source 948-02-028
Study hypothesis Relaparotomy on demand strategy in patients with secondary peritonitis reduces the risk of 180-day poor outcome (death or readmission/surgical intervention for morbidity in survivors) compared to a strategy with planned relaparotomy.
Ethics approval Approved by the Medical Ethics Committee, Academic Medical Center, Amsterdam, The Netherlands and by the Dutch Central Committee on Research Involving Human Subjects (Dutch initials: CCMO).
Study design Randomised controlled trial
Countries of recruitment The Netherlands
Disease/condition/study domain Secondary peritonitis
Participants - inclusion criteria 1. Patients with secondary peritonitis
2. Between 18 and 80 years
3. An Acute Physiology And Chronic Health Evaluation (APACHE) II score more than 10 (worst score in the first 24 hours of diagnosis)

Participating centres:
1. Academic Medical Center Amsterdam
2. University Medical Center Utrecht
3. Gelre Hospital Apeldoorn
4. Onze Lieve Vrouwe Gasthuis (OLVG) Amsterdam
5. St Lucas Andreas Hospital Amsterdam
6. Isala Klinieken Zwolle
7. A. Schweitzer Hospital Dordrecht
8. Bosch Medisch Centrum Den Bosch
9. Reinier de Graaf Gasthuis Delft
Participants - exclusion criteria 1. Age less than 18 or more than 80 years
2. Abdominal infection due to perforation after endoscopy operated within 24 hours
3. Abdominal infection due to an indwelling dialysis (Continuous Ambulatory Peritoneal Dialysis [CAPD]) catheter
4. Acute pancreatitis
5. Index laparotomy for peritonitis in another (referring, non-participating) hospital
6. Expected survival less than six months due to disseminated malignancy
7. Brain damage due to trauma or anoxia
Anticipated start date 01/12/2001
Anticipated end date 31/08/2006
Status of trial Completed
Patient information material
Target number of participants 222 (+12 additional for anticipated drop-outs)
Interventions Planned relaparotomy versus relaparotomy on demand
Primary outcome measure(s) ‘Poor outcome’ defined as death (all-cause mortality) or, in survivors, readmission or surgical intervention for disease-related morbidity (i.e., morbidity related to abdominal sepsis and its treatment) during a 180-day period after index laparotomy.
Secondary outcome measure(s) 1. Duration of mechanical ventilation, Intensive Care Unit (ICU) and hospital stay, days outside the hospital in one year after index surgery, long-term morbidity (one year), quality of life, and Quality-Adjusted Life-Years (QALYs).
2. Medical and indirect costs comparing absolute volumes of resource utilization.
Sources of funding The Netherlands Organisation for Health Research and Development (ZonMw) (The Netherlands) - Health Care Efficiency Research programme
Trial website
Publications Results in: http://www.ncbi.nlm.nih.gov/sites/entrez?Db=pubmed&Cmd=ShowDetailView&TermToSearch=17712070
Contact name Mrs  Marja A.  Boermeester
  Address Academic Medical Center
Department of Surgery (room G4-127)
Gastrointestinal Surgery (GI infection)
Meibergdreef 9
  City/town Amsterdam
  Zip/Postcode 1105 AZ
  Country Netherlands
  Email m.a.boermeester@amc.uva.nl
Sponsor Netherlands Organisation for Health Research and Development (ZonMw) (The Netherlands)
  Address Laan van Nieuw Oost Indie 334
P.O. Box 93245
  City/town The Hague
  Zip/Postcode 2509 AE
  Country Netherlands
  Tel +31 (0)70 349 5111
  Fax +31 (0)70 349 5100
  Email info@zonmw.nl
Date applied 10/02/2004
Last edited 24/08/2007
Date ISRCTN assigned 30/03/2004
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