Undiagnosed abnormal postpartum blood loss: Incidence and risk factors
Publication Date
January 10, 2018
Authors
Aude Girault, Catherine Deneux Tharaux, Loic Sentilhes, Françoise Maillard, et al
Volume
13
Issue
1
Pages
e0190845
DOI
https://dx.plos.org/10.1371/journal.pone.0190845
Publisher URL
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0190845
Scopus
85040357601
Mendeley
http://www.mendeley.com/research/undiagnosed-abnormal-postpartum-blood-loss-incidence-risk-factors
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Mendeley | Further Information

{"title"=>"Undiagnosed abnormal postpartum blood loss: Incidence and risk factors", "type"=>"journal", "authors"=>[{"first_name"=>"Aude", "last_name"=>"Girault", "scopus_author_id"=>"57150619900"}, {"first_name"=>"Catherine", "last_name"=>"Deneux-Tharaux", "scopus_author_id"=>"35317239800"}, {"first_name"=>"Loic", "last_name"=>"Sentilhes", "scopus_author_id"=>"6701794191"}, {"first_name"=>"Françoise", "last_name"=>"Maillard", "scopus_author_id"=>"7003491507"}, {"first_name"=>"François", "last_name"=>"Goffinet", "scopus_author_id"=>"36972595000"}], "year"=>2018, "source"=>"PLoS ONE", "identifiers"=>{"doi"=>"10.1371/journal.pone.0190845", "sgr"=>"85040357601", "pui"=>"620143999", "scopus"=>"2-s2.0-85040357601", "issn"=>"19326203", "pmid"=>"29320553", "isbn"=>"1111111111"}, "id"=>"205dfd8f-2f1d-3269-b0e2-51e4d0921e14", "abstract"=>"Background We aimed to evaluate the incidence of undiagnosed abnormal postpartum blood loss (UPPBL) after vaginal delivery, identify the risk factors and compare them to those of postpartum haemorrhage (PPH). Method The study population included women who participated in a randomized controlled trial of women with singleton low-risk pregnancy who delivered vaginally after 35 weeks’ gestation (n = 3917). Clinical PPH was defined as postpartum blood loss ≥ 500 mL measured by using a collector bag and UPPBL was defined by a peripartum change in haemoglobin ≥ 2 g/dL in the absence of clinical PPH. Risk factors were assessed by multivariate multinomial logistic regression. Results The incidence of UPPBL and PPH was 11.2% and 11.0% of vaginal deliveries, respectively. The median peripartum change in Hb level was comparable between UPPBL and PPH groups (2.5 g/dL interquartile range [2.2–3.0] and 2.4 g/dL IQR [1.5–3.3]). Risk factors specifically associated with UPPBL were Asian geographical origin (adjusted OR [aOR] 2.3, 95% confidence interval [CI] 1.2–4.2; p = 0.009), previous caesarean section (aOR 3.4, 2.1–5.5; p<0.001) and episiotomy (aOR 2.6, 1.8–3.6; p<0.001). Risk factors for both UPPBL and PPH were primiparity, long duration of labour, instrumental delivery and retained placenta. Conclusion Undiagnosed abnormal postpartum blood loss is frequent among women giving birth vaginally and has specific risk factors. The clinical importance of this entity needs further confirmation, and the benefit of systematic or targeted prevention strategies needs to be assessed.", "link"=>"http://www.mendeley.com/research/undiagnosed-abnormal-postpartum-blood-loss-incidence-risk-factors", "reader_count"=>11, "reader_count_by_academic_status"=>{"Unspecified"=>2, "Researcher"=>3, "Student > Ph. D. Student"=>1, "Student > Master"=>2, "Student > Bachelor"=>3}, "reader_count_by_user_role"=>{"Unspecified"=>2, "Researcher"=>3, "Student > Ph. D. Student"=>1, "Student > Master"=>2, "Student > Bachelor"=>3}, "reader_count_by_subject_area"=>{"Unspecified"=>2, "Medicine and Dentistry"=>6, "Agricultural and Biological Sciences"=>1, "Pharmacology, Toxicology and Pharmaceutical Science"=>1, "Nursing and Health Professions"=>1}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>6}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>1}, "Nursing and Health Professions"=>{"Nursing and Health Professions"=>1}, "Unspecified"=>{"Unspecified"=>2}, "Pharmacology, Toxicology and Pharmaceutical Science"=>{"Pharmacology, Toxicology and Pharmaceutical Science"=>1}}, "group_count"=>0}

Scopus | Further Information

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