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Revista Medica Herediana

versión impresa ISSN 1018-130X

Resumen

PARVINA DE LA O, Gessica; LOZA, César  y  CIEZA, Javier. Descriptive study using single dose of unfractionated heparin in patients undergoing hemodialysis. Rev Med Hered [online]. 2011, vol.22, n.3, pp. 103-107. ISSN 1018-130X.

Objective: To assess the evolution of anticoagulation with single dose of unfractionated heparin (UFH) in patients undergoing hemodialysis. Material and methods: We evaluated 31 patients undergoing chronic hemodialysis received one dose of UFH 30UI/Kg/hr, and got blood samples at 0, 5, 60, 120 minutes and at the end of the hemodialysis to measure the activated tromboplastin time (aTPT) to monitor the anticoagulation. Results: The aTPT ratio at time 0 was 1.22 ± 0.49, from these, 13 patients (41.94%) started the hemodialysis with abnormal aTPT ratio. At 5’and 60’, all the patients showed values of aTPT ratio higher than 6.9 (aTPT > 300 seconds); at 120’ eleven of these (35.8%) had aTPT ratio higher than 6.9 and 20 patients (64.52%) showed an aTPT ratio of 5.59 ± 1.35; all of them over the recommended interval. At the end of the procedure, the mean of the aTPT ratio was 2.17 ± 0.75 and only 3 patients showed aTPT ratio under the anticoagulation interval. We observed two cases of macroscopic bleeding without complications, and there were no contraindications for the reuse of the dializers. Conclusion: The use of UFH in one bolus dose during hemodialysis showed anticoagulation levels higher than the upper limit of the therapeutic range, which persist up to the end of the procedure. It is recommended to stop the practice of this method.(Rev Med Hered 2011;22:103-107).

Palabras llave : Hemodialysis; unfractionated heparin; single dose.

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