Comparison of stroke volume measurements during hemodialysis using bioimpedance cardiography and echocardiography

Autor: Nathan W. Levin, Yossi Chait, Jyovani Joubert, Michael J. Germain, Daniel O'Grady, Brian H. Nathanson
Rok vydání: 2017
Předmět:
Zdroj: Hemodialysis International. 22:201-208
ISSN: 1492-7535
DOI: 10.1111/hdi.12589
Popis: Background: Fluid management remains a major challenge of hemodialysis (HD) care, with serious implications for morbidity and mortality. Intradialytic fluid management is typically guided by blood pressure, an indirect resultant of hemodynamics status. Direct measurements of hemodynamic parameters may improve cardiovascular outcomes by providing rational bases for intervention. We compare stroke volume (SV) measurements using a noninvasive, regional biompedance cardiography device (NiCaS) with Doppler echocardiography (Echo) in HD setting. Methods: Stroke volumes were simultaneously measured using the devices in 17 patients receiving maintenance HD. Measurements were made during 2 weekly HD treatments, and twice within each HD treatment during the first and last hour of each treatment, for a total of 64 SV measurements. Agreement between devices was assessed using linear regression, a Pearson's correlation coefficient, and a Bland-Altman plot all adjusted for repeated measures within patients. Results: Echo and NiCaS SV mean and 95% CIs were 58.0 (50.1, 65.8) and 56.7 (49.4, 64.0) mL, respectively. NiCaS SV correlated strongly with Echo SV during the first and last hours of treatments (r = 0.93, P
Databáze: OpenAIRE
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