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Titolo:
Evaluation of a new advanced thoracic bioimpedance device for estimation of cardiac output
Autore:
Haryadi, DG; Westenskow, DR; Critchley, LAH; Schookin, SI; Zubenko, VG; Beliaev, KR; Morozov, AA;
Indirizzi:
Univ Utah, Hlth Sci Ctr, Dept Anesthesiol, Salt Lake City, UT 84132 USA Univ Utah Salt Lake City UT USA 84132 esiol, Salt Lake City, UT 84132 USA Univ Utah, Dept Bioengn, Salt Lake City, UT 84132 USA Univ Utah Salt LakeCity UT USA 84132 oengn, Salt Lake City, UT 84132 USA Chinesehatin,Hong Kong, Prince Wales Hosp, Dept Anesthesia & Intens Care, S Chinese Univ Hong Kong Shatin Hong Kong ept Anesthesia & Intens Care, S Moscow State Tech Univ, Moscow, Russia Moscow State Tech Univ Moscow Russia ow State Tech Univ, Moscow, Russia
Titolo Testata:
JOURNAL OF CLINICAL MONITORING AND COMPUTING
fascicolo: 2, volume: 15, anno: 1999,
pagine: 131 - 138
SICI:
1387-1307(199902)15:2<131:EOANAT>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
CALCULATING CORRELATION-COEFFICIENTS; ELECTRICAL BIOIMPEDANCE; IMPEDANCE CARDIOGRAPHY; THERMODILUTION METHODS; DOGS;
Keywords:
thoracic bioimpedance cardiography; Kubicek equation; ventricular ejection time; noninvasive cardiac output monitoring; thermodilution;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Westenskow, DR Univy,tah, Hlth Sci Ctr, Dept Anesthesiol, 3C444,50 N Med Dr, Salt Lake Cit Univ Utah 3C444,50 N Med Dr Salt Lake City UT USA 84132 Cit
Citazione:
D.G. Haryadi et al., "Evaluation of a new advanced thoracic bioimpedance device for estimation of cardiac output", J CLIN M C, 15(2), 1999, pp. 131-138

Abstract

Objective. This study is an evaluation of a new thoracic bioimpedance cardiac output monitoring system which incorporates a modified form of the Kubicek equation and a method of estimating the left ventricular ejection time from the time derivative bioimpedance signals. Methods.The performance of the new system was compared with conventional thermodilution in a porcine model. One hundred and ninety nine (n = 199) paired measurements of thermodilution cardiac output (TDCO) (range 1.20-18.00 L/min) and thoracic bioimpedance cardiac output (BICO) were collected in 7 pigs. The bioimpedance measurements were adjusted for the animal's weight and chest circumference, thus compensating for the differences in the anatomy of pigs when compared to humans. Data were compared using weighted correlation coefficient and Bland-Altman analysis. Results. The weighted correlation coefficient between TDCO and BICO values was 0.87 (n = 199). The Bland-Altman technique yielded a precision of the device of +/-1.69 L/min with a bias of 0.11 L/min. Conclusion. The results from the porcine study show that the new system performed well over a wide range of cardiac outputs, comparing favorably with data fromother new bioimpedance cardiac output devices currently available in the market.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 16/07/20 alle ore 16:38:33