title: Standard Deviation of Sequential Five-Minute R-R Interval Means (SDANN) is a prognostic marker, but not necessarily an autonomic marker.
authors.forename: Satish R
authors.initials: SR
authors.lastname: Raj
authors.forename: Daniel E
authors.initials: DE
authors.lastname: Roach
authors.forename: Mary Lou
authors.initials: ML
authors.lastname: Koshman
authors.forename: Robert S
authors.initials: RS
authors.lastname: Sheldon
mesh_terms: D001341:Autonomic Nervous System / Q000503:physiopathology*; D002304:Cardiac Pacing, Artificial; D006333:Heart Failure / Q000503:physiopathology* / Q000628:therapy*; D006339:Heart Rate; D006801:Humans; D011379:Prognosis