The Impact of Hemodynamic Transesophageal Echocardiography on Acute Kidney Injury Management and Use of Continuous Renal Replacement Therapy in Trauma

Abstract

Resuscitation of critically ill trauma patients can be precarious, and errors can cause acute kidney injuries. If renal failure develops, continuous renal replacement therapy (CRRT) may be necessary, but adds expense. Hemodynamic transesophageal echocardiography (hTEE) provides objective data to guide resuscitation. We hypothesized that hTEE use improved acute kidney injury (AKI) management, reserved CRRT use for more severe AKIs, and decreased cost and resource utilization. We retrospectively reviewed 2413 trauma patients admitted to a Level I trauma center's ICU between 2009 and 2015. Twenty-three patients required CRRT before standard hTEE use and 11 required CRRTafter; these are the “CRRT” and “CRRT/hTEE” groups, respectively. The hTEE group comprised 83 patients evaluated with hTEE, with AKI managed without CRRT. We compared the average creatinine, change in creatinine, and Acute Kidney Injury Network (AKIN) of “CRRT” with “CRRT/hTEE” and “hTEE.” We also analyzed several quality measures including ICU length of stay and cost. “CRRT” had a lower AKIN score (1.6) than “CRRT/hTEE” (2.9) (P = 0.0003). “hTEE” had an AKIN score of 2.1 (P = 0.0387). “CRRT” also had increased ICU days (25.1) compared with “CRRT/hTEE” (20.2) (P = 0.014) and “hTEE” (16.8) (P = 0.003). “CRRT” accrued on average $198,695.81 per patient compared with “CRRT/ hTEE” ($167,534.19) and “hTEE” ($53,929.01). hTEE provides valuable information to tailor resuscitation. At our institution, hTEE utilization reserved CRRT for worse AKIs and decreased hospital costs.