See the published version of this preprint at BMC Pregnancy and Childbirth.
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Gizeaddis Lamesgin Simegn
Jimma University
Corresponding Author
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Background
Primary postpartum hemorrhage (PPH) is an obstetric emergency caused by excessive blood loss that occurs most commonly after the placenta is delivered. PPH can lead to volume depletion, hypovolemic shock, anemia, and it is the leading cause of maternal mortality worldwide. With 470 deaths per 100,000 live births, the maternal mortality ratio in Ethiopia is one of the highest in the world. It is estimated that 94% of births occur at home in Ethiopia and that 10% of maternal deaths are attributed to PPH. Currently, physicians use visual estimation to calculate blood loss and provide fluid during delivery. This traditional method is subjective and generally inaccurate.Method
In this project, after delivery blood loss measurement system integrated with fluid delivery and vital sign monitoring method is proposed. The collection and measurement system collects blood loss after delivery and measures the amount of blood loss. The management system continuously monitors the mother’s heart rate and blood pressure. These vital sign values are integrated with the measured blood loss to estimate the amount of IV fluid required to be delivered for the mother. The rate of IV fluid delivery is regulated by a flow rate sensor and solenoid valve.Results
The prototype was built and undergone through different tests and iterations. The proposed device was tested for accuracy, cost effectiveness and ease to use. 91.28% accuracy has been achieved and the prototype was built with less than 210 USD.Conclusion
The proposed design allows physicians, especially those in low resource setting, to estimate blood loss and deliver fluid accurately. This helps to reduce maternal mortality rate that may occur due to postpartum hemorrhage.
Keywords
Postpartum Hemorrhage, Blood loss, Blood Pressure, Diagnosis, Fluid delivery, Maternal Mortality
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CURRENT STATUS: Published
View the published article at BMC Pregnancy and Childbirth.
Version 4
Posted 31 Oct, 2019
No community comments so far
Editorial decision: Accept
On 14 Nov, 2019
Editor assigned
On 28 Oct, 2019
Submission checks complete
On 27 Oct, 2019
Editor invited
On 27 Oct, 2019
No comments provided
Editorial decision: Minor revision
On 24 Oct, 2019
Editor assigned
On 10 Oct, 2019
Submission checks complete
On 09 Oct, 2019
Editor invited
On 09 Oct, 2019
No comments provided
Editorial decision: Minor revision
On 09 Oct, 2019
Review #1 received
Received 07 Oct, 2019
Reviewers invited
Invitations sent on 01 Oct, 2019
Reviewer #1 agreed
On 01 Oct, 2019
Editor assigned
On 30 Sep, 2019
Submission checks complete
On 29 Sep, 2019
Editor invited
On 29 Sep, 2019
No comments provided
Editorial decision: Major revision
On 11 Sep, 2019
Review #5 received
Received 10 Sep, 2019
Review #4 received
Received 08 Sep, 2019
Review #2 received
Received 01 Sep, 2019
Review #3 received
Received 01 Sep, 2019
Reviewer #5 agreed
On 28 Aug, 2019
Reviewer #4 agreed
On 27 Aug, 2019
Review #1 received
Received 24 Aug, 2019
Reviewer #3 agreed
On 23 Aug, 2019
Reviewers invited
Invitations sent on 22 Aug, 2019
Reviewer #1 agreed
On 22 Aug, 2019
Reviewer #2 agreed
On 22 Aug, 2019
Submission checks complete
On 20 Aug, 2019
Editor assigned
On 20 Aug, 2019
Editor invited
On 19 Aug, 2019
First submitted
On 08 Aug, 2019
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Maternal & Fetal Medicine
Learn more about our company.
A new preprint design is coming!
We have improved readability, clarity, accessibility, and opportunities for engagement.
See the published version of this preprint at BMC Pregnancy and Childbirth.
This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Technical advance
Gizeaddis Lamesgin Simegn
Jimma University
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Published
View the published article at BMC Pregnancy and Childbirth.
Version 4
Posted 31 Oct, 2019
No community comments so far
Editorial decision: Accept
On 14 Nov, 2019
Editor assigned
On 28 Oct, 2019
Submission checks complete
On 27 Oct, 2019
Editor invited
On 27 Oct, 2019
No comments provided
Editorial decision: Minor revision
On 24 Oct, 2019
Editor assigned
On 10 Oct, 2019
Submission checks complete
On 09 Oct, 2019
Editor invited
On 09 Oct, 2019
No comments provided
Editorial decision: Minor revision
On 09 Oct, 2019
Review #1 received
Received 07 Oct, 2019
Reviewers invited
Invitations sent on 01 Oct, 2019
Reviewer #1 agreed
On 01 Oct, 2019
Editor assigned
On 30 Sep, 2019
Submission checks complete
On 29 Sep, 2019
Editor invited
On 29 Sep, 2019
No comments provided
Editorial decision: Major revision
On 11 Sep, 2019
Review #5 received
Received 10 Sep, 2019
Review #4 received
Received 08 Sep, 2019
Review #2 received
Received 01 Sep, 2019
Review #3 received
Received 01 Sep, 2019
Reviewer #5 agreed
On 28 Aug, 2019
Reviewer #4 agreed
On 27 Aug, 2019
Review #1 received
Received 24 Aug, 2019
Reviewer #3 agreed
On 23 Aug, 2019
Reviewers invited
Invitations sent on 22 Aug, 2019
Reviewer #1 agreed
On 22 Aug, 2019
Reviewer #2 agreed
On 22 Aug, 2019
Submission checks complete
On 20 Aug, 2019
Editor assigned
On 20 Aug, 2019
Editor invited
On 19 Aug, 2019
First submitted
On 08 Aug, 2019
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Maternal & Fetal Medicine
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at BMC Pregnancy and Childbirth.
Background
Primary postpartum hemorrhage (PPH) is an obstetric emergency caused by excessive blood loss that occurs most commonly after the placenta is delivered. PPH can lead to volume depletion, hypovolemic shock, anemia, and it is the leading cause of maternal mortality worldwide. With 470 deaths per 100,000 live births, the maternal mortality ratio in Ethiopia is one of the highest in the world. It is estimated that 94% of births occur at home in Ethiopia and that 10% of maternal deaths are attributed to PPH. Currently, physicians use visual estimation to calculate blood loss and provide fluid during delivery. This traditional method is subjective and generally inaccurate.Method
In this project, after delivery blood loss measurement system integrated with fluid delivery and vital sign monitoring method is proposed. The collection and measurement system collects blood loss after delivery and measures the amount of blood loss. The management system continuously monitors the mother’s heart rate and blood pressure. These vital sign values are integrated with the measured blood loss to estimate the amount of IV fluid required to be delivered for the mother. The rate of IV fluid delivery is regulated by a flow rate sensor and solenoid valve.Results
The prototype was built and undergone through different tests and iterations. The proposed device was tested for accuracy, cost effectiveness and ease to use. 91.28% accuracy has been achieved and the prototype was built with less than 210 USD.Conclusion
The proposed design allows physicians, especially those in low resource setting, to estimate blood loss and deliver fluid accurately. This helps to reduce maternal mortality rate that may occur due to postpartum hemorrhage.
Figure 1
Figure 2
Figure 3
Figure 4
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