Review Article

Defining the Role of Dexmedetomidine in the Prevention of Delirium in the Intensive Care Unit

Table 1

Description of study methods and validity criteria.

Pandharipande et al. (2007) [13]Shehabi et al. (2009) [14]Maldonado et al. (2009) [15]

ICU typeMedical/surgical Cardiothoracic Cardiothoracic
Subjects
 Number10329990
 Age (median, IQR)Dexmedetomidine: 60 (49–65)
Lorazepam: 59 (45–67)
Dexmedetomidine: 71.5 (66–76)
Morphine: 71 (65–75)
Dexmedetomidine: 55 (16)
Propofol: 58 (18)
Midazolam: 60 (16)
 Male gender (%)51.575.363.6
Intervention (median, IQR)Dexmedetomidine: 0.74 mcg/kg/h (0.39–1.04)
Lorazepam: 3 mg/h (2.2–6)
Dexmedetomidine: 0.48 mcg/kg/h (0.23–0.76)
Morphine: 49 mcg/kg/h (20–81)
Dexmedetomidine: 0.35 mcg/kg/h
Propofol: 26.3 mcg/kg/h
Midazolam: 1.5 mg/h
Primary outcomeComposite of delirium-free and coma-free daysDelirium incidence within 5 days of surgeryIncidence of post-operative delirium
RandomizationComputer generated, permuted blocksComputer-generated blocks of 10Random drawing the evening before surgery, blocked
ConcealmentKnown only to study pharmacistKnown only to study pharmacistOpen-label
BlindingSolutions identical in color (clear)Solutions identical in color (clear)Unblinded
Jadad Score432

: mean (SD); : mean.