Detection of volume loss using the Nexfin device in blood donors

Autor: Christa Boer, T. A. van Veelen, M. M. W. Koopman, J. Stens, S. B. Nicia
Přispěvatelé: Anesthesiology, ICaR - Circulation and metabolism
Rok vydání: 2015
Předmět:
Zdroj: Anaesthesia, 71(2), 163-170. Wiley-Blackwell
Nicia, S B, van Veelen, T A, Stens, J, Koopman, M M W & Boer, C 2016, ' Detection of volume loss using the Nexfin device in blood donors ', Anaesthesia, vol. 71, no. 2, pp. 163-170 . https://doi.org/10.1111/anae.13283
ISSN: 1365-2044
0003-2409
DOI: 10.1111/anae.13283
Popis: We investigated which haemodynamic parameters derived from Nexfin non-invasive continuous arterial blood pressure measurements are optimal to detect controlled volume loss in spontaneously breathing subjects. Haemodynamic monitoring was performed in 40 whole-blood donors. Mean arterial pressure, cardiac index, systemic vascular resistance index and pulse pressure variation were recorded during controlled breathing, and a Valsalva manoeuvre was performed before and after blood donation. Blood donation resulted in a reduction in cardiac index (from 3.96 ± 0.84 l.min(-1) .m(2) to 3.30 ± 0.61 l.min(-1) .m(2) ; p < 0.001), an increase in systemic vascular resistance (from 1811 ± 450 dyn.s.cm(-5) .m(2) to 2137 ± 428 dyn.s.cm(-5) .m(2) ; p < 0.001) and an increase in pulse pressure variation (from 13.4 ± 5.1 to 15.3 ± 5.4%; p = 0.02). The area under the receiver operating characteristic curve to detect volume loss was highest for cardiac index (0.94, 95% CI 0.88-0.99) and systemic vascular resistance (0.90, 95% CI 0.82-0.99). Nexfin is a non-invasive haemodynamic monitor that can feasibly detect volaemic changes in spontaneously breathing subjects.
Databáze: OpenAIRE