866 Meeting the Challenge of Analgesia in a Pregnant Woman with Burn Injury Using Subanesthetic Ketamine: A Case Report

Abstract

Introduction Burn injury is the fourth most common form of trauma worldwide, requiring unique management considerations and a collaborative approach to treatment. Thermal injuries sustained during pregnancy add considerably to case complexity. Overall, there is a low incidence of burns in gravid women living in developed countries, making management guidelines in this patient population scarce. Despite few data, it is recognized that early intervention and inter-disciplinary treatment are critical to optimize maternal and fetal outcomes. Thus, interventions including fluid resuscitation, excision and grafting, routine debridement and dressing changes, antibiotic administration, and early mobilization are the cornerstones of management. Effective pain management is crucial in allowing patients to tolerate these often-painful procedures, engage in rehabilitation, and to prevent pain-related morbidity. Methods The patient is a 34-year-old G5P3013 in her third trimester of pregnancy, who sustained partial and full thickness burns to 18% of total body surface area in a grease fire. She was brought to the ED approximately 2 hours post-injury by EMS. During her hospital stay, Acute Pain Management Service (APMS) was consulted for a comprehensive pain management plan. APMS recommendations included IV acetaminophen, hydromorphone PCA, gabapentin, and ketamine infusion with a reduced dose bolus for procedural analgesia. Risks and benefits of these medications were explained to patient and her family by the APMS, Maternal-Fetal Medicine, and the Burn team, stressing the importance of tolerating routine burn care to decrease morbidity. Although human data are limited, it was explained that low doses (as outlined in our regimen) present little fetal risk in animal models. Results The patient was discharged at hospital day 11 and seen for burn follow-up after 2 weeks post-discharge (35 weeks gestation) with returning color, no evidence of hypertrophy, and overall excellent wound healing. Patient reported no pain, and her pain regimen was discontinued. Patient demonstrated significant improvement in her injuries, and had a normal spontaneous vaginal delivery of a live born male 7 weeks post discharge, with APGAR scores of 8 and 9 at 1 and 5 minutes, respectively. Additionally, the patient brought her infant to the office visit and conveyed that the child was consistently reaching pediatric milestones. Conclusions Ketamine may be considered as an adjunct for procedural and background analgesia during the third trimester, as part of a multi-modal strategy in a short-term, monitored setting after a thorough and complete analysis of risks and benefits and careful patient selection. Applicability of Research to Practice Procedural pain management in a third-trimester burn patient.