title: [Changes in the heart beat of puppies in the first twelve weeks of life].
abstract: In 37 healthy pups and seven pups with congenital pulmonic stenosis ECG were recorded and the heart rate determined. Between the first week of life in healthy pups (mean = 230/min) and the twelfth week of life the heart rate in both groups at six weeks was 195/min and 180/min. At the end of the investigation the averaged heart rate was 167/min or 166/min respectively. In single weeks during the investigation a slightly increased heart rate occurred in a few dogs between the fourth and sixth week of life owing to an increased restlessness during this time span. The heart rate of newborn pups at the first day (mean = 215/min) was a little lower than the average in the first week of life.
authors.affiliation: Klinik und Poliklinik für kleine Haustiere der FU Berlin.
authors.forename: E
authors.initials: E
authors.lastname: Trautvetter
authors.forename: E B
authors.initials: EB
authors.lastname: Pagel
authors.forename: M
authors.initials: M
authors.lastname: Skrodzki
authors.forename: K
authors.initials: K
authors.lastname: Gerlach
mesh_terms: D000375:Aging / Q000502:physiology*; D000818:Animals; D000831:Animals, Newborn / Q000502:physiology*; D004285:Dogs / Q000502:physiology*; D004562:Electrocardiography / Q000662:veterinary; D006321:Heart / Q000502:physiology*; D006339:Heart Rate
vernacular_title: Anderungen der Herzschlagzahlen beim Hundewelpen in den ersten zwölf Lebenswochen.