title: Influence of changes in intrathoracic and central venous pressure on cardiac filling dynamics.
abstract: Changes in the ratio between intrathoracic and central venous pressure were studied in narcotized cats under conditions of constant positive or negative pressure ventilation. Transformation of elastic characteristics in the respiratory system caused by changes in intrathoracic pressure led to inversion of the ratio between transpulmonary intrathoracic and central venous pressure determining right atrial filling pressure.
authors.affiliation: Laboratory for Physiology of Respiration, I P Pavlov Institute of Physiology, Russian Academy of Sciences, St Petersburg, Moscow. isaev@kolt.infra.ru
authors.forename: Zh A
authors.initials: ZhA
authors.lastname: Donina
authors.forename: I N
authors.initials: IN
authors.lastname: Lavrova
authors.forename: M A
authors.initials: MA
authors.lastname: Tikhonov
authors.forename: A N
authors.initials: AN
authors.lastname: Kotov
authors.forename: V I
authors.initials: VI
authors.lastname: Kolesnikov
authors.forename: V M
authors.initials: VM
authors.lastname: Baranov
mesh_terms: D000818:Animals; D016280:Atrial Function, Right / Q000502:physiology*; D017536:Carotid Artery, Common / Q000502:physiology; D002415:Cats; D002496:Central Venous Pressure; D004562:Electrocardiography; D010991:Plethysmography; D011175:Positive-Pressure Respiration; D015656:Respiratory Mechanics / Q000502:physiology*; D013909:Thorax / Q000098:blood supply*; D014683:Vena Cava, Superior / Q000502:physiology