title: Quantification of regional left ventricular wall motion in newborns by color kinesis.
abstract: BACKGROUND
  Normal values for regional left ventricular wall motion, although documented in adults, have not been reported in healthy newborns.
  
  
  METHODS
  This study prospectively evaluated global and segmental systolic and diastolic cardiac function by color kinesis in clinically asymptomatic healthy newborns.
  
  
  RESULTS
  Eighty-eight asymptomatic infants who were less than 48 hours old were studied. Systolic and diastolic parameters of global and regional left ventricular function are reported as means +/- SD, medians, 5th and 95th percentiles to establish the normative values for newborns. The reported fractional area changes during systole and diastole are similar to the reported normal values for older subjects. Higher body surface area significantly correlated with an increased peak velocity during systole, and fractional area changes during filling of the lateral wall.
  
  
  CONCLUSIONS
  Our report of left ventricular regional wall-motion characteristics of healthy newborns, as evaluated by color kinesis, may help in the objective evaluation and management of newborns suspected to have global or segmental ventricular dysfunction.
authors.affiliation: Cleveland Clinic Foundation, Fairview Hospital, Case Western Reserve University, Cleveland, Ohio 44111, USA.
authors.forename: Jing Ping
authors.initials: JP
authors.lastname: Sun
authors.forename: Dennis M
authors.initials: DM
authors.lastname: Super
authors.forename: Ann
authors.initials: A
authors.lastname: Salvator
authors.forename: Lynn
authors.initials: L
authors.lastname: Singer
authors.forename: David
authors.initials: D
authors.lastname: Connuck
authors.forename: Linda
authors.initials: L
authors.lastname: Goetz Fradley
authors.forename: Rose A
authors.initials: RA
authors.lastname: Harcar-Sevcik
authors.forename: H Lester
authors.initials: HL
authors.lastname: Kirchner
authors.forename: James D
authors.initials: JD
authors.lastname: Thomas
authors.forename: Sudhir Ken
authors.initials: SK
authors.lastname: Mehta
mesh_terms: D001830:Body Surface Area; D018618:Echocardiography, Doppler, Color; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009200:Myocardial Contraction; D011446:Prospective Studies; D012016:Reference Values; D016277:Ventricular Function, Left / Q000502:physiology*