Gelatin and hydroxyethyl starch, but not albumin, impair hemostasis after cardiac surgery

Tomi Niemi, Raili Suojaranta-Ylinen, Sinikka Kukkonen, Anne Kuitunen

    Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

    Abstrakti

    We investigated the effect of postoperative administration of colloids on hemostasis in 45 patients after cardiac surgery. Patients were randomized to receive 15 mL kg(-1) of either 4% albumin, 4% succinylated gelatin, or 6% hydroxyethyl starch (molecular weight of 200 kDa/degree of substitution 0.5) as a short-term infusion. There was a comparable decrease in maximum clot firmness of thromboelastometry tracings in gelatin and hydroxyethyl starch groups immediately after completion of the infusion, whereas these values remained unchanged in the albumin group. The impairment in clot strength persisted up to 2 h, although the values partly recovered. Postoperative bleeding correlated inversely with the clot strength in pooled data of the artificial colloids. Fibrin formation (clot formation time, a-angle) and fibrinogen-dependent clot strength (maximum clot firmness and shear elastic modulus) were more disturbed in the hydroxyethyl starch group than in the gelatin group. We conclude that after cardiopulmonary bypass surgery, both gelatin and hydroxyethyl starch impair clot strength and fibrin buildup, which may predispose patients to increased blood loss. The greatest impairment in hemostasis was seen after hydroxyethyl starch administration, whereas albumin appeared to have the least effect on hemostatic variables.
    Alkuperäiskielienglanti
    LehtiAnesthesia & Analgesia
    Vuosikerta102
    Numero4
    Sivut998-1006
    Sivumäärä9
    ISSN0003-2999
    DOI - pysyväislinkit
    TilaJulkaistu - 2006
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä, vertaisarvioitu

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