title: [Function of the brain venous system and a 24-h profile of arterial pressure in hypertensive patients].
abstract: OBJECTIVE
  To study blood flow along the internal jugular veins (IJV) in the initial state and under the action of nitroglycerin in patients with essential arterial hypertension (EAH) with reference to characteristics of a 24-h profile of blood pressure.
  
  
  METHODS
  A 24-h monitoring of blood pressure (MBP), duplex scanning of IJV, venous IJV outflow were studied in 26 patients with EAH stage 2 (mean age 39 +/- 5.0) before and after sublingual intake of nitroglycerin (0.5 mg).
  
  
  RESULTS
  By 24-h MBP findings, two groups of patients were identified: with unaffected blood pressure profile (group 1) and affected profile (group 2). Nitroglycerin produced a unidirectional reaction of IJV (increased outflow) in group 1 and multidirectional changes of venous outflow along the IJV in patients of group 2.
  
  
  CONCLUSIONS
  Nitroglycerin test showed different venous cerebral hemodynamics in EAH patients with different variants of 24-h MBP.
authors.forename: T M
authors.initials: TM
authors.lastname: Ripp
authors.forename: I A
authors.initials: IA
authors.lastname: Astanina
authors.forename: I N
authors.initials: IN
authors.lastname: Vorozhtsova
authors.forename: V F
authors.initials: VF
authors.lastname: Mordovin
authors.forename: R S
authors.initials: RS
authors.lastname: Karpov
mesh_terms: D000286:Administration, Sublingual; D000328:Adult; D001783:Blood Flow Velocity / Q000187:drug effects / Q000502:physiology*; D001794:Blood Pressure / Q000187:drug effects / Q000502:physiology*; D018660:Blood Pressure Monitoring, Ambulatory; D001921:Brain / Q000098:blood supply*; D002560:Cerebrovascular Circulation / Q000187:drug effects / Q000502:physiology*; D002940:Circadian Rhythm / Q000502:physiology; D005500:Follow-Up Studies; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D007601:Jugular Veins / Q000000981:diagnostic imaging / Q000187:drug effects / Q000503:physiopathology*; D008875:Middle Aged; D005996:Nitroglycerin / Q000008:administration & dosage; D018616:Ultrasonography, Doppler, Duplex; D014665:Vasodilator Agents / Q000008:administration & dosage
chemical_list: D014665:Vasodilator Agents; D005996:Nitroglycerin