Olivier Pantet1, Patricia Stoecklin2, Mélanie Charrière3, Pierre Voirol4, Arnaud Vernay5, Mette M Berger3. 1. Service of Adult Intensive Care Medicine and Burns, University Hospital, Lausanne, Switzerland. Electronic address: olivier.pantet@chuv.ch. 2. Department of Intensive Care Medicine, Bern University Hospital, Switzerland. 3. Service of Adult Intensive Care Medicine and Burns, University Hospital, Lausanne, Switzerland. 4. Service of Pharmacy, University Hospital, Lausanne, Switzerland. 5. Department of Computer Sciences, University Hospital, Lausanne, Switzerland.
Abstract
BACKGROUND & AIMS: Major burn patients are characterized by large exudative losses of Cu, Se and Zn. Trace element (TE) repletion has been shown to improve clinical outcome. Having increased the TE doses over time, the study aimed at analysing if our repletion protocol corrected TE plasma concentrations and if the necessity for continuous renal replacement therapy (CRRT) might increase the TE needs. METHODS: Retrospective analysis of prospectively collected data in burn patients requiring intensive care (ICU) between 1999 and 2015. INCLUSION CRITERIA: Admission on day 1, full treatment, burned surface area (TBSA) ≥20% and ≥1 TE plasma determination during the stay. Four groups were constituted according to protocol changes. Period 1 (P1): 1999-2000, P2: 2001-2005, P3: 2006-2010, P4: 2011-2015. Changes consisted in increasing TE repletion doses and duration. Demographic data, daily TE intakes and weekly plasma concentrations were retrieved for the first 21 ICU-days. Data as median (IQR). RESULTS: 139 patients completed the criteria, aged 37 (28) years, burned on 35 (25) % TBSA. As a result of prescription, Cu, Se and Zn intakes increased significantly between P1 and P4, resulting in normalization of plasma Cu (16 μmol/l) since P3 and Zn (13.5 μmol/l) since P2. Median plasma Se were above reference range (1400 nmol/l) during P3 and P4. CRRT patients required higher doses of Cu for maintenance within normal ranges. CONCLUSION: This dose finding study shows that the latest repletion protocol is safe and normalizes Cu and Zn concentrations. Se doses result in supra-normal Se concentrations, suggesting prescription reduction. CRRT patients are at high risk of Cu depletion and require specific monitoring.
BACKGROUND & AIMS: Major burn patients are characterized by large exudative losses of Cu, Se and Zn. Trace element (TE) repletion has been shown to improve clinical outcome. Having increased the TE doses over time, the study aimed at analysing if our repletion protocol corrected TE plasma concentrations and if the necessity for continuous renal replacement therapy (CRRT) might increase the TE needs. METHODS: Retrospective analysis of prospectively collected data in burn patients requiring intensive care (ICU) between 1999 and 2015. INCLUSION CRITERIA: Admission on day 1, full treatment, burned surface area (TBSA) ≥20% and ≥1 TE plasma determination during the stay. Four groups were constituted according to protocol changes. Period 1 (P1): 1999-2000, P2: 2001-2005, P3: 2006-2010, P4: 2011-2015. Changes consisted in increasing TE repletion doses and duration. Demographic data, daily TE intakes and weekly plasma concentrations were retrieved for the first 21 ICU-days. Data as median (IQR). RESULTS: 139 patients completed the criteria, aged 37 (28) years, burned on 35 (25) % TBSA. As a result of prescription, Cu, Se and Zn intakes increased significantly between P1 and P4, resulting in normalization of plasma Cu (16 μmol/l) since P3 and Zn (13.5 μmol/l) since P2. Median plasma Se were above reference range (1400 nmol/l) during P3 and P4. CRRT patients required higher doses of Cu for maintenance within normal ranges. CONCLUSION: This dose finding study shows that the latest repletion protocol is safe and normalizes Cu and Zn concentrations. Se doses result in supra-normal Se concentrations, suggesting prescription reduction. CRRT patients are at high risk of Cu depletion and require specific monitoring.
Authors: Joachim N Meuli; Olivier Pantet; Mette M Berger; Laurent Waselle; Wassim Raffoul Journal: J Burn Care Res Date: 2022-01-05 Impact factor: 1.845