Does IV Acetaminophen Reduce Opioid Requirement in Pediatric Patients With Acute Sickle Cell Crises?

Phase 4

Completed

Brief Summary: The purpose of this study is to determine whether IV acetaminophen can decrease the need for subsequent opioid administration in the acute management of sickle cell crisis pain in the pediatric emergency room.

Detailed Description: This is a single-center, prospective, randomized, double-blinded, controlled study in an academic urban pediatric emergency department of children with sickle cell disease presenting with acute sickle cell crisis pain between ages of 4 to 16 years, with a pain score of 6/10 or higher on the Wong-Baker modified FACES pain scale. In order to detect a difference of 0.2 mg/kg in cumulative dosage of morphine (at our institution, 0.3 mg/kg morphine deems an inpatient admission for parenteral pain management) with 80% power and alpha of 0.05, we calculated a sample size of 33 patients in each group. All patients will receive IV ketorolac and IV morphine. Patients will be randomized to receive IV acetaminophen or IV saline (volume-equivalent). Pain scores will be obtained at baseline, and again at 30 minutes, 60 minutes, 90 minutes, and 120 minutes after medication administration. Cumulative morphine dosing, rates of admission, and rates of adverse effects of morphine will also be analyzed. Our primary objective is to decrease the need for subsequent opioid administration. Our secondary objectives are to determine if IV Acetaminophen decreases pain score at 30 minutes, 60 minutes, 90 minutes, and 120 minutes, decreases the rate of admissions, and decreases the rate of adverse effects from opioids.

Recruitment & Eligibility

Inclusion Criteria

Any patient age 4-16 years with sickle cell disease who presents the Pediatric ER with acute sickle cell pain crisis with a pain of 6/10 or higher

Exclusion Criteria

Patient with fever (38C or 100.4F)
Patient less than age 4 years
Patient greater than age 16 years
Patient with hypersensitivity/allergy to either morphine, NSAIDs, or acetaminophen
Patient received acetaminophen within the past 4 hours
Patient with known liver disease or renal disease
Patient not requiring IV morphine (pain score 5/10 or less)
Patient enrolled in the study within the past 72 hours

Arm && Interventions

Group	Intervention	Description
Intervention	Acetaminophen	Patients allocated to receive IV acetaminophen
Placebo	Normal saline	Patients allocated to receive IV normal saline placebo

Primary Outcome Measures

Name	Time	Method
Cumulative Opioid Dosing	120 minutes	Total dosing of opioid given after initial evaluation in mg/kg

Secondary Outcome Measures

Name	Time	Method
Percentage of the Patients Reporting Satisfaction	120 minutes	How satisfied were patients with the management of their pain
Inpatient Admission	120 minutes	Percentage of patients admitted to the inpatient unit for parenteral pain management
Pain Scores	at disposition	Scale of 1-10 Pain scale, Min value 1, Max value 10, higher score is worse
Adverse Effects	120 minutes	Rate of adverse effects experienced by patients from opioid administration vs acetaminophen administration