Improved Accuracy of Automated Estimation of Cardiac Output Using Circulation Time in Patients with Heart Failure

Hilmi R. Dajani, Kazuya Hosokawa, Shin ichi Ando

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Background Lung-to-finger circulation time of oxygenated blood during nocturnal periodic breathing in heart failure patients measured using polysomnography correlates negatively with cardiac function but possesses limited accuracy for cardiac output (CO) estimation. Methods and Results CO was recalculated from lung-to-finger circulation time using a multivariable linear model with information on age and average overnight heart rate in 25 patients who underwent evaluation of heart failure. The multivariable model decreased the percentage error to 22.3% relative to invasive CO measured during cardiac catheterization. Conclusions This improved automated noninvasive CO estimation using multiple variables meets a recently proposed performance criterion for clinical acceptability of noninvasive CO estimation, and compares very favorably with other available methods.

Original languageEnglish
Pages (from-to)925-927
Number of pages3
JournalJournal of Cardiac Failure
Volume22
Issue number11
DOIs
Publication statusPublished - Nov 1 2016

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

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