These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Haemodynamics in juvenile hypertension at rest and during exercise.
    Author: Jandová R, Widimský J, Ressl J.
    Journal: Cor Vasa; 1980; 22(1-2):22-32. PubMed ID: 7398343.
    Abstract:
    In twenty-eight patients with juvenile hypertension haemodynamic examinations were made at rest and during exercise (600 kpm/min). The cardiac output was determined by the Fick method; venous blood was sampled from a floating catheter introduced into the pulmonary artery; the systemic pressure was measured directly in the brachial artery. In 57% of the juvenile hypertensives the resting cardiac index was higher than 4.5 l/min/m2. The increase was due to an increase in the stroke volume rather than in the heart rate. Of the patients 37.5% had increased cardiac output relatively to the oxygen uptake also during exercise; most of them were hyperkinetic already at rest. The resting systemic resistance was significantly elevated in patients whose resting systolic pressure was greater than 150 mmHg and/or diastolic pressure was greater than 90 mmHg, compared to controls; during exercise the values of systemic resistance lay within normal limits. The systemic pressure responded to the exercise by either a hypertonic or a normotonic reaction. In only 23% of subjects normotensive at rest a hypertonic response to exercise was found.
    [Abstract] [Full Text] [Related] [New Search]