Sickle Cell Disease Clinical Trial
Official title:
Adjuvant Low-dose Ketamine in Pediatric Sickle Cell Vaso-occlusive Crisis (AKTSS)
Acute vaso-occlusive episodes (VOEs) in sickle cell disease (SCD) are primarily managed with opioids. Tolerance and hyperalgesia to opioids develops due to N-methyl-D-aspartate (NMDA)-receptor mediated activation of the nociceptive system, and as a receptor antagonist, ketamine mitigates this. Intravenous (IV) ketamine has demonstrated efficacy in reducing post-operative, chronic, and cancer-related pain in pediatrics, as well as in reducing time to pain control in the emergency department (ED) in adults. Limited studies suggest efficacy in adult opioid-refractory SCD patients. This study is investigating the safety and tolerability of adjuvant low-dose IV ketamine bolus for pediatric SCD VOE in the ED, as well as its efficacy in improving pain control and reducing hospitalization.
In this cohort study, all consenting pediatric sickle-cell patients between 10 and 25 years old who were cared for at UCSF Benioff Children's Hospital Oakland (UCSFBCHO) presenting to the emergency department for VOC were enrolled in the study. Patients were compared to themselves in a time series, pre and post exposure to the study intervention (low-dose ketamine bolus at 0.2 mg/kg x 1 prior to second dose of IV opiate). The pediatric FACES pain scale was used to measure pain scales at pre-designated time points in the ED per standard nursing protocol (FACES for younger kids, visual analog scale in adolescents/young adults). Opiate usage was summed in the ED, converted to mg/kg/hour of morphine equivalents (since different opioids agents were given to different patients based on individual historical efficacy, and since length of stay in the emergency room could affect total morphine equivalents received), and compared between the pre and post-intervention groups. In addition, length of stay, time to 50% pain control, presentation and discharge pain scores, and likelihood of discharge from the ED were compared. Data was be collected via chart review in the UCSFBCHO system by study investigators. Pre-intervention data from the past three patient encounters (e.g., the mean of the mg/kg/hour of morphine equivalents used in the last three patient encounters prior to receipt of ketamine) was compared to the post intervention data. In addition, a survey, which is attached, was given to patients/families at the time of the drug administration to attempt to discern if patients subjectively experienced improvement in their pain and if they experienced any negative side effects due to the drug administration. Monitoring for adverse events was recorded for each patient encounter. ;
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