To determine the pharmacokinetic profile and peak bupivacaine plasma concentration with the use of an Exparel/bupivacaine mixture in children ages two through seventeen (Cohort I). Cohort II covers ages 2 \<6. We will be collecting blood samples at different times during 96 hours or until the patient is discharged from the hospital. There will be two different groups participating in the study alternating the times in which the blood samples will be collected. We hypothesize that peak plasma concentration will be significantly less than the toxic plasma concentration.
Age
2–17
Sex
ALL
Healthy volunteers
Not accepted
You may be eligible if
Every elective pediatric surgery patient ages two through seventeen years old, inclusive.
You may not be if
Patients who fall outside of the age range for the study will be excluded. -Patients known to have had an anaphylactic or severe reaction to the drug or its components will not be enrolled. Any with Significant Liver Disease will also be excluded. Emergency patients will be excluded. Pregnant patients will be excluded.
