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: Increased cardiac output by downstream pumping with a reversed unidirectional intra-aortic balloon.
    Author: Pooley RW, Truccone NJ, Spotnitz HM, Parodi EN, Bregman D, Malm JR, Reemtsma K.
    Journal: J Thorac Cardiovasc Surg; 1977 Apr; 73(4):647-50. PubMed ID: 839854.
    Abstract:
    Downstream and upstream pumping with unidirectional intra-aortic balloons was compared in 8 open-chest normal mongrel dogs anesthetized with pentobarbital. Downstream pumping effect a 32 per cent increase in cardiac index, a 24 per cent decrease in systemic resistance, and a 2 per cent decrease in heart rate. Upstream pumping did not significantly affect these parameters. Mean aorta pressure proximal and distal to the balloon was not altered significantly by pumping in either direction. This unique observation of increased cardiac output may have important implications for the treatment of low output cardiac failure. Preliminary studies including baroreceptor denervation suggest that a reflex mechanism may be involved.
    [Abstract] [Full Text] [Related] [New Search]