Table 4
Author, date and countryPatient groupStudy type (level of evidence)OutcomesKey resultsStudy weaknesses
Bosse GM et al, 1995, USA51 patients presenting with tricyclic overdose.RCTMean length of stay93.3 (+/− 94.3) hours v 107.2 (+/− 106.8) hours v 66.7 (+/− 41.7) hours (p=0.473)Not blinded
Small numbers
Charcoal only (n=22) v charcoal then lavage (n=14) v charcoal then lavage then charcoal (n=15)Mean length ICU stay66.9 (+/− 96.0) hours v 54.1 (+/− 34.3) hours v 34.4 (+/− 27.3) hours (p=0.436)Variations between presenting GCS and drug levels between groups
39 intubatedMean mechanical ventilation time43.4 (+/− 17.7) hours v 24.1 (+/− 18.3) hours v 17.8 (+/− 14.0) hrs (p=0.321)
Aspiration2/22 v 3/14 v 3/15 (p=0.501)