Visual estimation of postpartum blood loss during a simulation training: A prospective study

Lemée, Juliette; Scalabre, Aurélien; Chauleur, Céline; Raia-Barjat, Tiphaïne

doi:10.1016/j.jogoh.2019.101673

Cited by 11 publications

(5 citation statements)

References 24 publications

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“…Finally, the reading of the plastic blood collection bag was only an estimation, and the maximum volume of the bag is 500 mL. [ 24 ] Therefore, blood will be lost when the volume exceeds 500 mL, leading to a significant underestimation of postpartum blood loss. The TSCLB solved this issue because of the presence of a drain valve.…”

Section: Discussionmentioning

confidence: 99%

“…Using the TSCLB, we could collect blood from the wound in the inner bag before childbirth and objectively measure the amount of postpartum blood loss as well as reduce the environmental pollution in the delivery room. Finally, the reading of the plastic blood collection bag was only an estimation, and the maximum volume of the bag is 500 mL [24] . Therefore, blood will be lost when the volume exceeds 500 mL, leading to a significant underestimation of postpartum blood loss.…”

Section: Discussionmentioning

confidence: 99%

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Measurement of postpartum blood loss using a new two-set liquid collection bag for vaginal delivery

Wang¹,

Weng³

et al. 2021

Medicine

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Background: Postpartum hemorrhage (PPH) is a major obstetric complication, and the real-time measurement of blood loss is important in the management and treatment of PPH. We designed a new two-set liquid collection bag (TSLCB) for measuring postpartum blood loss in vaginal delivery. The aim of this study was to evaluate the effectiveness of the TSLCB in separating the blood from the amniotic fluid during vaginal delivery and in determining the accuracy of the measured postpartum blood loss. Methods: A prospective, randomized, case control study was conducted in the Women's Hospital, Zhejiang University School of Medicine, from March 2018 to April 2018. Sixty single pregnant women with spontaneous labor at 37–41 weeks without maternal complications were randomly divided into the experimental and control groups. The TSLCB was used to evaluate separately the amount of blood and amniotic fluid. For the control group, visual estimation and traditional plastic blood-collecting consumables were used to estimate the amount of postpartum blood loss. The measured blood loss between the two groups was compared, and the association of the measured blood loss with various clinical lab indices and vital signs was investigated. Results: The TSLCB (the experimental group) improved the detection of the measured blood loss compared with visual estimation and the traditional method (the control group) ( P < .05). In the experimental group, correlation analysis showed that the measured blood loss at delivery and within 24 h of delivery was significantly associated with the decreased hemoglobin level, red blood cell count, and hematocrit level of patients ( r = −0.574, −0.455, −0.437; r = 0.-595, −0.368, −0.374; P < .05). In the control group, only the measured blood loss within 24 h of delivery was associated with the decreased hemoglobin level ( r = −0.395, P < .05). No blood transfusion and plasma expanders were required in the treatment of PPH for both groups. Conclusions: The TSLCB can be used to accurately measure the postpartum blood loss in vaginal delivery by medical personnel.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Measurement of postpartum blood loss using a new two-set liquid collection bag for vaginal delivery

Wang¹,

Weng³

et al. 2021

Medicine

View full text Add to dashboard Cite

show abstract

“…Using the TSCLB, we could collect blood from the wound in the inner bag before childbirth and objectively measure the amount of postpartum blood loss as well as reduce the environmental pollution in the delivery room. Finally, the reading of the plastic blood collection bag was only an estimation, and the maximum volume of the bag is 500 mL [24]. Therefore, blood will be lost when the volume exceeds 500 mL, leading to a signi cant underestimation of postpartum blood loss.…”

Section: Discussionmentioning

confidence: 99%

Measurement of Postpartum Blood Loss Using a New Two - Set Liquid Collection Bag for Vaginal Delivery: A Prospective, Randomized, Case Control Study

Wang

Weng

et al. 2020

Preprint

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Background Postpartum hemorrhage (PPH) is a major obstetric complication, and the real-time measurement of blood loss is important in the management and treatment of PPH. We designed a new two-set liquid collection bag (TSLCB) for measuring postpartum blood loss in vaginal delivery. The aim of this study was to evaluate the effectiveness of the TSLCB in separating the blood from the amniotic fluid during vaginal delivery and in determining the accuracy of the measured postpartum blood loss.Methods A prospective, randomized, case control study was conducted in the Women’s Hospital, Zhejiang University School of Medicine, from March 2018 to April 2018. Sixty single pregnant women with spontaneous labor at 37–41 weeks without maternal complications were randomly divided into the experimental and control groups. The TSLCB was used to evaluate separately the amount of blood and amniotic fluid. For the control group, visual estimation and traditional plastic blood-collecting consumables were used to estimate the amount of postpartum blood loss. The measured blood loss between the two groups was compared, and the association of the measured blood loss with various clinical lab indices and vital signs was investigated. Results The TSLCB (the experimental group) improved the detection of the measured blood loss compared with visual estimation and the traditional method (the control group) (p < 0.05). In the experimental group, correlation analysis showed that the measured blood loss at delivery and within 24 h of delivery was significantly associated with the decreased hemoglobin level, red blood cell count, and hematocrit level of patients (r = -0.574, -0.455, -0.437; r = 0.-595, -0.368, -0.374; p < 0.05). In the control group, only the measured blood loss within 24 h of delivery was associated with the decreased hemoglobin level (r = -0.395, p < 0.05). No blood transfusion and plasma expanders were required in the treatment of PPH for both groups.Conclusions The TSLCB can be used to accurately measure the postpartum blood loss in vaginal delivery by medical personnel.Trial registration: This trial was registered with Chinese Clinical Trial Registry (ChiCTR): ChiCTR-IOR-17012453, 23 August 2017.

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“…The primary outcomes were the number of units of red blood cells (RBCs) transfused during surgery and the estimated blood loss. Especially the number of RBC units transfused reflects PAS-related maternal morbidity as obstetrical blood estimation has been shown to be subjective in high volumes [ 17 , 18 ]. Secondary outcomes were the other complications during and after surgery.…”

Section: Methodsmentioning

confidence: 99%

A Single-Centre Retrospective Analysis of Pregnancies with Placenta Accreta Spectrum (PAS): From One-Step Surgery towards Two-Step Surgical Approach

Weydandt,

Lia,

Schöne

et al. 2024

JCM

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Background: Placenta accreta spectrum (PAS) can be the cause of major morbidity and its optimal management is still controversial. The aim of this study was to compare the traditional one-step surgery with a two-step surgical approach in which the placenta is left in situ and the second final operation is delayed to minimise blood loss. Methods: We conducted a single-centre retrospective cohort study including all patients managed for PAS between 2007 and 2023. The number of units of red blood cells (RBCs) needed during surgery was the primary outcome used to compare these two approaches. Results: A total of 43 cases were included in this analysis. Twenty of these were managed with the delayed two-step surgical approach, whereas 23 received one-step surgery. The median estimated blood loss during surgery was 2000 mL and 2800 mL for two-step and one-step surgery, respectively (p = 0.095). In the two-step surgical approach, the median number of RBC units transfused during surgery was significantly lower (p = 0.049) and the odds ratio for needing more than four units of RBCs was 0.28 (95%-CI: 0.08–0.98, p = 0.043). A longer interval between the caesarean section and the second operation showed a trend toward lower blood loss (p = 0.065) and was associated with a significantly lower number of RBC units needed during surgery (p = 0.019). Conclusions: Two-step surgery for the treatment of PAS was safe in our cohort and could lead to a reduction in blood transfusion. Leaving the placenta in situ and delaying the final operation represents a possible alternative to traditional caesarean hysterectomy.

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Visual estimation of postpartum blood loss during a simulation training: A prospective study

Cited by 11 publications

References 24 publications

Measurement of postpartum blood loss using a new two-set liquid collection bag for vaginal delivery

Measurement of postpartum blood loss using a new two-set liquid collection bag for vaginal delivery

Measurement of Postpartum Blood Loss Using a New Two - Set Liquid Collection Bag for Vaginal Delivery: A Prospective, Randomized, Case Control Study

A Single-Centre Retrospective Analysis of Pregnancies with Placenta Accreta Spectrum (PAS): From One-Step Surgery towards Two-Step Surgical Approach

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