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Menorrhagia is one of the gynecological complaints, seen in women of reproductive age. In majority of cases no organic pathology is found. To date there is no consensus on application of von Willebrand disease (vWD) testing as part of the routine investigations in menorrhagia. Diagnosis of vWD is challenging. It is complicated by intra-individual variations in von Willebrand antigen, activity, and factor VIII levels due to fluctuation of these factor levels during the menstrual cycle or hormonal therapy. The aim of this study is to detect vWD presenting with menorrhagia among Malays attending gynecology clinic by using a standard panel of haemostatic profiles. Thirty Malay patients attending gynecology clinic with unexplained menorrhagia were included in this study. Haemostatic profile such as platelet count, prothrombin time, activated partial thromboplastin time (APTT), factor VIII assay, von Willebrand factor antigen, and von Willebrand factor activity, and collagen binding assay were measured in all patients. Pre- and post hormonal haemostatic profiles were also performed in the patients diagnosed as vWD. All patients had normal APTT. Based on von Willebrand factor work-up, vWD was diagnosed in four patients (13.3%). Three of them were Type 1 and the other one was Type 2M. Investigation for vWD is essential in patients with menorrhagia and thus the laboratories performing vWD testing should provide a complete panel of diagnostic work-up in order to reduce the interpretation error. Screening for vWD should be performed before hormonal treatment as haemostatic profile post treatment could mask the diagnosis.

Single-Center Experience of von Willebrand Disease (vWD) Among Patients with Menorrhagia: A Diagnosis which could be Missed