A Laboratory Case Report Of “Hypercoagulation Syndrome” Following Eight Weeks Of Estrogen Replacement Therapy
A preliminary study was designed to identify if estrogen replacement therapy (E.R.T.) could be correlated with any progressive alterations in blood coagulation function. A total of thirty post menopausal women were assigned to treatment groups and monitored monthly for six months. This presentation relates the laboratory findings of one 55 year old woman who developed significantly altered blood coagulation parameters after two months on conjugated estrogens equine (1.25 mg/day).Routine biochemistry, F.S.H. levels, haematology, and eight standard coagulation tests were done. However, prothrombin time (P.T.), and partial thromboplastin times (P.T.T.), were done on a Coagulation Profiler (T.M.). Assessment of coagulation function was affected through comparison of the patients present P.T. and P.T.T. profiles with pretreatment and reference standard profiles. All aspects of the patient’s coagulation kinetics were altered significantly, in the direction of hyper-coagulation (p< 0.001) with the exception of the P.T. time alone, which was unchanged. Platelet aggregation was impossible, due to spontaneous aggregation during pre-test standing, fibrinogen and euglobulin lysis levels were also raised. The patient reported breast engorgement, abdominal distension and calf tenderness. Two months following E.R.T. discontinuation, the patient’s blood coagulation parameters had all returned to pretreatment levels.The case is discussed within the context of an hypercoagulation syndrome resultant upon an idiosyncratic response to estrogen therapy.