title: [Comparison of continuous cardiac output measurement methods: non-invasive estimated CCO using pulse wave transit time and CCO using thermodilution].
abstract: BACKGROUND
  esCCO (estimated continuous cardiac output, Nihon Kohden, esCCO) is a new cardiac output measurement system which uses pulse wave transit time to calculate cardiac output continuously and non-invasively. One of the most commonly used methods to monitor cardiac output is continuous cardiac output CCO (Edwards Lifesciences) which has an accuracy equivalent to that of thermodilution method.
  
  
  METHODS
  We compared esCCO to CCO in 67 operating room patients and 128 intensive care unit patients. CCO and esCCO were measured simultaneously in patients with a pulmonary artery catheter inserted after admission to the operating room or intensive care unit.
  
  
  RESULTS
  CCO and esCCO showed a high correlation with a correlation coefficient of 0.84 in 496 total data points, and 95% limits of agreement between these two methods were -2.49 to 2.35 l x min(-1).
  
  
  CONCLUSIONS
  This result suggests that esCCO could be used to measure cardiac output accurately and non-invasively in different cases.
authors.affiliation: Department of Anesthesiology, National Defense Medical College, Tokorozawa 359-0042.
authors.forename: Masato
authors.initials: M
authors.lastname: Tsutsui
authors.forename: Takashige
authors.initials: T
authors.lastname: Yamada
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Sugo
authors.forename: Tetsufumi
authors.initials: T
authors.lastname: Sato
authors.forename: Toshimasa
authors.initials: T
authors.lastname: Akazawa
authors.forename: Nobukazu
authors.initials: N
authors.lastname: Sato
authors.forename: Koichi
authors.initials: K
authors.lastname: Yamashita
authors.forename: Hironori
authors.initials: H
authors.lastname: Ishihara
authors.forename: Tomiei
authors.initials: T
authors.lastname: Kazama
authors.forename: Junzo
authors.initials: J
authors.lastname: Takeda
mesh_terms: D002302:Cardiac Output; D005260:Female; D006801:Humans; D007362:Intensive Care Units; D008297:Male; D016343:Monitoring, Intraoperative / Q000295:instrumentation*; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D009873:Operating Rooms; D063177:Pulse Wave Analysis; D012680:Sensitivity and Specificity; D055471:Thermal Diffusion; D013997:Time Factors