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The study of anaemia-related haemostasis impairement in haemodialysis patient by in vitro closture time testPreložnik Zupan, Irena, medicina ...It is known that anaemia in haemodialysis patients could contribute to haemostasis impairment However, the precise relation between the degree of anaemia and the degree of haemostasis impairment is ... not known, nor the optimallevel of hematocrit above which anaemia no longer disturbs haemostasis.Our study addresses these clinically relevant questions by employing in vitro closure time test,a new method in which the process of platelet adhesion and aggregation following vascular injury is simulated in vitro in samples of whole blood.We studied 63 haemodialysis patients, with 30 age-matched, healthy controls. Results show that patients with hematocrit below 0.32 (N=28) had significantly impaired primary haemostasis, in contrast to patients with hematocrit above 0.32 (N=35), as measured by both types of closure time test.A significant negative association was found between hematocrit values and closure time (CEPI cartridges: rho=-0.41, p<0.001; CADP cartridges: rho=-0.47, p<0.001). A multiple logistic regression model for predicting prolonged closure time confirmed this finding. Nonparametric curve fitting enabled estimation of the level of hematocrit at which the values of in vitro closure time in haemodialysis patients do not differ from those in the controls at approximately 0.35. ROC analysis confirmed this to be the optimal threshold for predicting prolonged closure time for both cartridges. By using in vitro closure time test, we confirmed that anaemia correlates withthe severity of haemostasis impairment. We estimated the target level of hematocrit above which anaemia no longer affects haemostasis to be about 0.35.These new results (and new assay) appear to have clinical value for treating haemodialysis patients.Vir: Thrombosis and haemostasis. - ISSN 0340-6245 (Letn. 93, 2005, str. 375-379)Vrsta gradiva - članek, sestavni delLeto - 2005Jezik - angleškiCOBISS.SI-ID - 19191257
Avtor
Preložnik Zupan, Irena, medicina |
Šabovič, Mišo |
Salobir, Barbara, 1966- |
Buturović-Ponikvar, Jadranka |
Černelč, Peter |
Lavre, Janez |
Vujkovac, Bojan
Teme
Hemodialysis |
Uremia |
Anemia |
Hematocrit |
Platelet Count |
Whole Blood Coagulation Time |
Roc Curve |
Anemija |
Hematokrit |
Trombociti, štetje |
Uremija |
Celotna kri, koagulacijski čas |
ROK krivulja
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Preložnik Zupan, Irena, medicina | 23126 |
Šabovič, Mišo | 08094 |
Salobir, Barbara, 1966- | 12541 |
Buturović-Ponikvar, Jadranka | 10649 |
Černelč, Peter | 07012 |
Lavre, Janez | ![]() |
Vujkovac, Bojan | 34761 |
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