Zero balance ultrafiltration using dialysate during nationwide bicarbonate shortage: a retrospective analysis

Autor: Ryan Mullane, Lance Fristoe, Nicholas W. Markin, Tara R. Brakke, Helen Mari Merritt-Genore, Aleem Siddique, Clifford D. Miles, Troy J. Plumb
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Journal of Cardiothoracic Surgery, Vol 14, Iss 1, Pp 1-5 (2019)
Druh dokumentu: article
ISSN: 1749-8090
DOI: 10.1186/s13019-019-0986-8
Popis: Abstract Background Zero balance ultrafiltration (Z-BUF) utilizing injectable 8.4% sodium bicarbonate is utilized to treat hyperkalemia and metabolic acidosis associated with cardiopulmonary bypass (CPB). The nationwide shortage of injectable 8.4% sodium bicarbonate in 2017 created a predicament for the care of cardiac surgery patients. Given the uncertainty of availability of sodium bicarbonate solutions, our center pro-actively sought a solution to the sodium bicarbonate shortage by performing Z-BUF with dialysate (Z-BUF-D) replacement fluid for patients undergoing cardiopulmonary bypass. Methods Single-center, retrospective observational evaluation of the first 46 patients at an academic medical center who underwent Z-BUF using dialysate over a period of 150 days with comparison of these findings to a historical group of 39 patients who underwent Z-BUF with sodium chloride (Z-BUF-S) over the preceding 150 days. The primary outcome was the change in whole blood potassium levels pre- and post-Z-BUF-D. Secondary outcomes included changes in pre- and post-Z-BUF-D serum bicarbonate levels and the amount of serum bicarbonate used in each Z-BUF cohort (Z-BUF-D and Z-BUF-S). Results Z-BUF-D and Z-BUF-S both significantly reduced potassium levels during CPB. However, Z-BUF-D resulted in a significantly decreased need for supplemental 8.4% sodium bicarbonate administration during CPB (52 mEq ± 48 vs. 159 mEq ± 85, P
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