caa a22 4500 44530670X CHVBK 20180317142615.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s00404-010-1522-1 doi (NATIONALLICENCE)springer-10.1007/s00404-010-1522-1 Visual estimation versus gravimetric measurement of postpartum blood loss: a prospective cohort study [Elektronische Daten] [Hanan Al Kadri, Bedayah Al Anazi, Hani Tamim] Purpose: One of the major problems in international literature is how to measure postpartum blood loss with accuracy. We aimed in this research to assess the accuracy of visual estimation of postpartum blood loss (by each of two main health-care providers) compared with the gravimetric calculation method. Methods: We carried out a prospective cohort study at King Abdulaziz Medical City, Riyadh, Saudi Arabia between 1 November 2009 and 31 December 2009. All women who were admitted to labor and delivery suite and delivered vaginally were included in the study. Postpartum blood loss was visually estimated by the attending physician and obstetrics nurse and then objectively calculated by a gravimetric machine. Comparison between the three methods of blood loss calculation was carried out. Results: A total of 150 patients were included in this study. There was a significant difference between the gravimetric calculated blood loss and both health-care providers' estimation with a tendency to underestimate the loss by about 30%. The background and seniority of the assessing health-care provider did not affect the accuracy of the estimation. The corrected incidence of postpartum hemorrhage in Saudi Arabia was found to be 1.47%. Conclusion: Health-care providers tend to underestimate the volume of postpartum blood loss by about 30%. Training and continuous auditing of the diagnosis of postpartum hemorrhage is needed to avoid missing cases and thus preventing associated morbidity and mortality. Springer-Verlag, 2010 Postpartum hemorrhage nationallicence Postpartum blood loss nationallicence Maternal mortality nationallicence Maternal morbidity nationallicence Blood loss estimation nationallicence Al Kadri Hanan Department of Obstetrics and Gynecology, King Abdulaziz Medical City, King Saud Bin Abdulaziz University for Health Sciences, College of Medicine, Riyadh, Saudi Arabia aut Al Anazi Bedayah Department of Obstetrics and Gynecology, King Abdulaziz Medical City, King Saud Bin Abdulaziz University for Health Sciences, College of Medicine, Riyadh, Saudi Arabia aut Tamim Hani Department of Medical Education, College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia aut Archives of Gynecology and Obstetrics Springer-Verlag 283/6(2011-06-01), 1207-1213 0932-0067 283:6<1207 2011 283 404 https://doi.org/10.1007/s00404-010-1522-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00404-010-1522-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Al Kadri Hanan Department of Obstetrics and Gynecology, King Abdulaziz Medical City, King Saud Bin Abdulaziz University for Health Sciences, College of Medicine, Riyadh, Saudi Arabia aut NATIONALLICENCE 700 1- Al Anazi Bedayah Department of Obstetrics and Gynecology, King Abdulaziz Medical City, King Saud Bin Abdulaziz University for Health Sciences, College of Medicine, Riyadh, Saudi Arabia aut NATIONALLICENCE 700 1- Tamim Hani Department of Medical Education, College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia aut NATIONALLICENCE 773 0- Archives of Gynecology and Obstetrics Springer-Verlag 283/6(2011-06-01), 1207-1213 0932-0067 283:6<1207 2011 283 404 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer