Age  
Mean (range)   15.6 years (7.5-21.4)
Gender  
Female 22(67%)
Phenotype  
SS 23 (70%)
SBeta0Thalassemia 1 (3%)
SC 8 (24%)
SBeta+ Thalassemia 1 (3%)
Co-morbidities  
Asthma or hx of severe ACS 23 (70%)
Avascular Necrosis 5 (15%)
Iron overload 3 (9%)
Kidney Disease/HTN 6 (18%)
Priapism 1 (3%)
Hydroxyurea therapy  
Yes 12 (42%)
Average dose 22.74 mg/kg/day
Time to Ketamine start (±SD (range) 1.17 days (±0.99) (0.09 – 3.56)
PCA type Morphine 21 (64%)
Hydromorphone 12 (36%)  
Day Ketamine Added HD 1 (n = 6)
  HD 2 (n = 13)
  HD 3 (n = 7)
  HD 4 (n = 6)
  HD 5 (n = 1)
Total Duration of Ketamine (±SD) 3.11 days (±2.29)
hx=history ACS=Acute Chest Syndrome, HTN=Hypertension, HD=hospital day
Table 1: Demographic Characteristics of Ketamine+PCA group. n=33 patients.