Evidence map›Paper›PMID 27456310›Full record

ArticleMaternal and child health journal2017

Diagnosing Postpartum Hemorrhage: A New Way to Assess Blood Loss in a Low-Resource Setting.

Lorine Wilcox, Chethan Ramprasad, Amanda Gutierrez, Maria Oden, Rebecca Richards-Kortum, Haleh Sangi-Haghpeykar, Manisha Gandhi

Abstract read
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In one paragraph

Article in Maternal and child health journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 2 pooled it
2.6field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 2 syntheses or guidelines pooled it, 13 citations in OpenAlex.

  1. Tests for diagnosis of postpartum haemorrhage at vaginal birth.The Cochrane database of systematic reviews · 2025
    Pooled it
  2. Pooled it
  3. Article
  4. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Lorine WilcoxDepartment of Obstetrics and Gynecology, Baylor College of Medicine, 6651 Main St, Ste 1096, Houston, TX, 77030, USA. LLWilcox11@gmail.com.
Chethan RamprasadRice University, 6100 Main Street, Houston, TX, 77005, USA.
Amanda GutierrezRice University, 6100 Main Street, Houston, TX, 77005, USA.
Maria OdenDepartment of Bioengineering, Rice University, 6000 Main Street, Houston, TX, 77005, USA.
Rebecca Richards-KortumDepartment of Bioengineering, Rice University, 6000 Main Street, Houston, TX, 77005, USA.
Haleh Sangi-HaghpeykarDepartment of Obstetrics and Gynecology, Baylor College of Medicine, 6651 Main St, Ste 1096, Houston, TX, 77030, USA.
Manisha GandhiDepartment of Obstetrics and Gynecology, Baylor College of Medicine, 6651 Main St, Ste 1096, Houston, TX, 77030, USA.
Rice University · USBaylor College of Medicine · US

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

Introduction Postpartum hemorrhage (PPH) is the leading cause of maternal mortality worldwide. The largest barriers to treating PPH are symptom recognition and timely diagnosis. The SAPHE (Signaling a Postpartum Hemorrhage Emergency) Mat was constructed so that each square on the Mat absorbs up to 50 mL of blood. The objective of this study was to evaluate the correlation of visually estimated blood loss (EBL) using the SAPHE Mat with actual blood loss. Methods Thirty-six patients gave birth via vaginal delivery using the SAPHE Mat. Visual estimation of blood loss using the SAPHE Mat was calculated by multiplying the number of blood- saturated squares or partial squares by 50 mL. The visual EBL was compared with the actual blood loss calculated based on Mat weight before and after use (volume blood loss). Results Visual blood loss estimations were within 100 mL of the volume blood loss 69 % of the time and within 200 mL 97 % of the time. The mean difference between the visual EBL and volume blood loss (Mat weight change) was 80.91 mL. The Pearson correlation coefficient for visual EBL and volume blood loss was positive at 0.96 (p < 0.001). Discussion The SAPHE Mat is able to provide a visual estimate of blood loss that is highly correlated with the actual blood loss on the mat. Future studies will assess the ability to deploy the SAPHE Mat in low-resource settings as a potential guide for estimating blood loss to assist in improved management of PPH.

Indexed as

Absorbent PadsAdultFemaleHumansMaternal MortalityPostpartum HemorrhagePregnancyStatistics as TopicEstimated blood lossLow-resource settingPostpartum hemorrhageSAPHE MatVaginal delivery

Identifiers

PMID27456310
OpenAlexW2480806005

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.