Abstract
Heavy menstrual bleeding (HMB) is often undiagnosed in women and can cause discomfort and distress. A haemostatic cause for excessive bleeding is often not routinely investigated and can lead to hysterectomy at an early age. A prospective cohort study was carried out to determine whether certain patients with unexplained HMB have an underlying platelet function defect (PFD). The Genotyping and Phenotyping of Platelets (GAPP) study recruited 175 women with HMB and 44 unrelated volunteers from 25 Haemophilia Centres across the UK, and a tertiary gynaecology service. Bleeding history was assessed using the International Society on Thrombosis and Haemostasis Bleeding Assessment Tool (ISTH-BAT). Platelet count, platelet size, haemoglobin and mean corpuscular volume were measured in whole blood using the Sysmex XN-1000 Haematology Analyzer. Platelet function testing using lumiaggregometry and flow cytometry was performed in patients included in this study. A PFD was identified in 47% (82/175) of patients with HMB. Cutaneous bleeding was the most frequent additional bleeding symptom (89% in PFD and 83% with no PFD). Whole blood platelet count was significantly lower (P < 0.0001) between the PFD group and no PFD group. The prevalence of anaemia did not differ between patients and healthy volunteers. Clinical evaluation alone is insufficient to determine presence of an underlying PFD in patients with HMB. Platelet function tests may be considered and clinical guidelines may include them in their algorithms. An appropriate diagnosis and subsequent tailored management of HMB may prevent unnecessary surgery and help manage future haemostatic challenges.
Highlights
Heavy menstrual bleeding (HMB) has been quantitatively defined as menstrual bleeding exceeding seven days or a blood loss of more than 80 millilitres per cycle
A total of 175 women with a history of HMB as a primary bleeding complaint and 44 unrelated healthy volunteers were analysed in this study (Figure 1).The median age of the recruited patients with HMB was 42 years and the interquartile range (IQR) was 32 to 51 years
Heavy menstrual bleeding is common and our study shows that nearly half of women with this complaint who do not have von Willebrand’s Disease (VWD) may have a platelet function defect (PFD)
Summary
Heavy menstrual bleeding (HMB) has been quantitatively defined as menstrual bleeding exceeding seven days or a blood loss of more than 80 millilitres per cycle. Such a definition is not useful clinically and does not take into account the impact of HMB on the individual. HMB is common in women of reproductive age [2] accounting for a large proportion of health care resources in primary and secondary care [3]. Health Organisation estimates that 18 million women suffer from HMB [4]
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