• Br J Anaesth · Dec 2000

    Increased pre-operative platelet counts are a possible predictor for reduced sensitivity to heparin.

    • A Vuylsteke, R J Mills, A E Crosbie, T I Burns, and R D Latimer.
    • Department of Anaesthesia, Papworth Hospital, Cambridge, UK.
    • Br J Anaesth. 2000 Dec 1;85(6):896-8.

    AbstractWe investigated a possible relationship between pre-operative platelet count and reduced sensitivity to heparin in 87 patients undergoing cardiac surgery with cardiopulmonary bypass (CPB). Sensitivity to heparin was determined by measuring the slope of the heparin dose response (HDR) before surgery. Pre-operative platelet counts were measured as part of routine analysis of the patients' coagulation status. Patients with an HDR slope of <80 s u. ml(-1), were considered to have a reduced sensitivity to heparin and activated clotting time data were collected from these patients before and after heparin administration before CPB. A significant correlation was determined between pre-operative platelet levels and HDR slope (P<0.001). Platelet counts were significantly greater in heparin-resistant patients compared with those who had the expected response to the anticoagulant (P<0.05). This could be caused by an increased capacity to produce platelet factor 4, which neutralizes heparin.

      Pubmed     Free full text   Copy Citation     Plaintext  

      Add institutional full text...

    Notes

     
    Knowledge, pearl, summary or comment to share?
    300 characters remaining
    help        
    You can also include formatting, links, images and footnotes in your notes
    • Simple formatting can be added to notes, such as *italics*, _underline_ or **bold**.
    • Superscript can be denoted by <sup>text</sup> and subscript <sub>text</sub>.
    • Numbered or bulleted lists can be created using either numbered lines 1. 2. 3., hyphens - or asterisks *.
    • Links can be included with: [my link to pubmed](http://pubmed.com)
    • Images can be included with: ![alt text](https://bestmedicaljournal.com/study_graph.jpg "Image Title Text")
    • For footnotes use [^1](This is a footnote.) inline.
    • Or use an inline reference [^1] to refer to a longer footnote elseweher in the document [^1]: This is a long footnote..

    hide…