Patients with uremia often have a coagulopathy with oozing from puncture sites and bleeding from mucosal surfaces. The causes of the bleeding are often multifactorial. A variety of therapeutic maneuvers can help control the bleeding, but some may only be effective for a short period of time.
Factors favoring bleeding:
(1) anemia
(2) thrombocytopenia
(3) acquired platelet dysfunction
(4) telangiectasia
(5) increased fibrinolysis
(6) concurrent anticoagulation (heparin during hemodialysis, etc.)
(7) concurrent defects in coagulation factors (vitamin K deficiency, other)
Therapy for anemia targets keeping the hematocrit > 30%:
(1) with packed RBC transfusions
(2) erythropoietin
Therapy for platelet quantitative and qualitative defects:
(1) dialysis
(2) platelet transfusion
(3) von Willebrand factor availability: cryoprecipitate or desmopressin (DDAVP)
(4) avoiding medications causing platelet dysfunction
Therapy if bleeding from telangiectasia:
(1) estrogens, either conjugated or transdermal low dose
Therapy to reduce fibrinolysis:
(1) aminocaproic acid (EACA, Amicar)
Therapy |
Disadvantages |
RBC transfusion |
infection, iron overload |
erythropoietin |
hypertension, thrombotic events |
dialysis |
access complications, infection |
platelet transfusions |
transfused platelets quickly become dysfunctional |
cryoprecipitate |
risk of infection |
desmopressin |
tachyphylaxis after 2-3 doses |
estrogens |
onset takes several days; hot flashes with high doses |
aminocaproic acid |
thrombotic events, hypertension |
Specialty: Hematology Oncology, Clinical Laboratory, Nephrology
ICD-10: ,