scholarly journals Accuracy of Blood Loss Measurement during Cesarean Delivery

2017 ◽  
Vol 07 (02) ◽  
pp. e93-e100 ◽  
Author(s):  
Sahar Doctorvaladan ◽  
Andrea Jelks ◽  
Eric Hsieh ◽  
Robert Thurer ◽  
Mark Zakowski ◽  
...  
Keyword(s):  
Blood Loss ◽  
Cesarean Delivery ◽  
Gravimetric Method ◽  
Assay Method ◽  
Visual Estimation ◽  
Colorimetric Analysis ◽  
Gravimetric Measurement ◽  
Colorimetric System ◽  
Cesarean Deliveries ◽  
Bland Altman Method

Objective This study aims to compare the accuracy of visual, quantitative gravimetric, and colorimetric methods used to determine blood loss during cesarean delivery procedures employing a hemoglobin extraction assay as the reference standard. Study Design In 50 patients having cesarean deliveries blood loss determined by assays of hemoglobin content on surgical sponges and in suction canisters was compared with obstetricians' visual estimates, a quantitative gravimetric method, and the blood loss determined by a novel colorimetric system. Agreement between the reference assay and other measures was evaluated by the Bland–Altman method. Results Compared with the blood loss measured by the reference assay (470 ± 296 mL), the colorimetric system (572 ± 334 mL) was more accurate than either visual estimation (928 ± 261 mL) or gravimetric measurement (822 ± 489 mL). The correlation between the assay method and the colorimetric system was more predictive (standardized coefficient = 0.951, adjusted R2 = 0.902) than either visual estimation (standardized coefficient = 0.700, adjusted R2 = 00.479) or the gravimetric determination (standardized coefficient = 0.564, adjusted R2 = 0.304). Conclusion During cesarean delivery, measuring blood loss using colorimetric image analysis is superior to visual estimation and a gravimetric method. Implementation of colorimetric analysis may enhance the ability of management protocols to improve clinical outcomes.

scholarly journals The Health Impact of Surgical Techniques and Assistive Methods Used in Cesarean Deliveries: A Systemic Review

2020 ◽  
Vol 17 (18) ◽  
pp. 6894
Author(s):  
Li-Hsuan Wang ◽  
Kok-Min Seow ◽  
Li-Ru Chen ◽  
Kuo-Hu Chen
Keyword(s):  
Blood Loss ◽  
Cesarean Delivery ◽  
Operative Time ◽  
Surgical Techniques ◽  
Systemic Review ◽  
Fetal Head ◽  
Advantages And Disadvantages ◽  
Cesarean Deliveries ◽  
Fundal Pressure

Cesarean delivery is one of the most frequently performed surgeries in women throughout the world. However, the most optimal technique to minimize maternal and fetal morbidities is still being debated due to various clinical situations and surgeons’ preferences. The contentious topics are the use of vacuum devices other than traditional fundal pressure to assist in the delivery of the fetal head and the techniques of uterine repair used during cesarean deliveries. There are two well-described techniques for suturing the uterus: The uterus can be repaired either temporarily exteriorized (out of abdominal cavity) or in situ (within the peritoneal cavity). Numerous studies have attempted to compare these two techniques in different aspects, including operative time, blood loss, and maternal and fetal outcomes. This review provides an overview of the assistive method of vacuum devices compared with fundal pressure, and the two surgical techniques for uterine repair following cesarean delivery. This descriptive literature review was performed to address important issues for clinical practitioners. It aims to compare the advantages and disadvantages of the assistive methods and surgical techniques used in cesarean deliveries. All of the articles were retrieved from the databases Medline and PubMed using the search terms cesarean delivery, vacuum, and exteriorization. The searching results revealed that after exclusion, there were 9 and 13 eligible articles for vacuum assisted cesarean delivery and uterine exteriorization, respectively. Although several studies have concluded vacuum assistance for fetal extraction as a simple, effective, and beneficial method during fetal head delivery during cesarean delivery, further research is still required to clarify the safety of vacuum assistance. In general, compared to the use of in situ uterine repairs during cesarean delivery, uterine exteriorization for repairs may have benefits of less blood loss and shorter operative time. However, it may also carry a higher risk of intraoperative complications such as nausea and vomiting, uterine atony, and a longer time to the return of bowel function. Clinicians should consider these factors during shared decision-making with their pregnant patients to determine the most suitable techniques for cesarean deliveries.

Clinical Experience with the Implementation of Accurate Measurement of Blood Loss during Cesarean Delivery: Influences on Hemorrhage Recognition and Allogeneic Transfusion

2017 ◽  
Vol 35 (07) ◽  
pp. 655-659 ◽  
Author(s):  
Stacy Zamudio ◽  
Abdulla Al-Khan ◽  
Claudia Douglas ◽  
Sharon Sledge ◽  
Griffeth Tully ◽  
...  
Keyword(s):  
Blood Loss ◽  
Mobile Application ◽  
Blood Product Transfusion ◽  
Visual Estimation ◽  
Traditional Group ◽  
Allogeneic Transfusion ◽  
Cesarean Deliveries ◽  
Estimated Blood Loss ◽  
Hospital Stays ◽  
Device Use

Objective This article compares hemorrhage recognition and transfusion using accurate, contemporaneous blood loss measurement versus visual estimation during cesarean deliveries. Study Design A retrospective cohort study using visually estimated blood loss (traditional, n = 2,025) versus estimates using a mobile application that photographs sponges and canisters and calculates their hemoglobin content (device, n = 756). Results Blood loss > 1,000 mL was recognized in 1.9% of traditional visual estimation patients, while measured blood loss of > 1,000 mL occurred in 8.2% of device patients (p < 0.0001). In both groups, this was accompanied by a greater decrease in transfusion-adjusted hemoglobin levels than occurred in patients without hemorrhage (p < 0.0001). Despite similar transfusion rates (1.6% in both groups), fewer red cell units were given to transfused patients in the device group (1.83 ± 0.58 versus 2.56 ± 1.68 units; p = 0.038). None of the patients in the device group received plasma or cryoprecipitate. Seven patients in the traditional group received these products (p = 0.088). Device use was associated with shorter hospital stays (4.0 ± 2.3 versus 4.4 ± 2.9 days; p = 0.0006). Conclusion The device identified hemorrhages more frequently than visual estimation. Device-detected hemorrhages appeared clinically relevant. Blood product transfusion was reduced possibly due to earlier recognition and treatment, although further studies are needed to verify the conclusion.

Accurate Assessment of Blood Loss during Cesarean Delivery Improves Estimation of Postoperative Hemoglobin

2018 ◽  
Vol 36 (04) ◽  
pp. 434-439 ◽  
Author(s):  
Michael Block ◽  
Stacy Zamudio ◽  
Claudia Douglas ◽  
Sharon Sledge ◽  
Griffeth Tully ◽  
...  
Keyword(s):  
Blood Loss ◽  
Cesarean Delivery ◽  
Mobile Application ◽  
Retrospective Cohort ◽  
Hemoglobin Concentration ◽  
Visual Estimation ◽  
Hemoglobin Content ◽  
Traditional Group ◽  
Estimated Blood Loss ◽  
Blood Loss Estimation

Objective To determine if accurate blood loss determination during cesarean delivery can improve the prediction of postoperative hemoglobin levels. Study Design This is a retrospective cohort study using visually estimated blood loss (traditional, n = 2,025) versus estimates using a mobile application that photographs sponges and canisters and calculates their hemoglobin content (device, n = 756). Results The correlation between the actual and predicted postoperative day 1 hemoglobin value (PPO1 Hgb) was better in the device group (R 2 = 0.519, correlation = 0.720) than in the traditional group (R 2 = 0.429, correlation = 0.655) (p = 0.005). For patients in the device group where the estimated blood loss was >1,000 mL (n = 53), the PPO1 Hgb was also better correlated with the actual value (R 2 = 0.319, correlation = 0.565) than the predictions using visually estimated blood loss for those patients in the device group whose visual estimation was >1,000 mL (n = 32) (R 2 = 0.035, correlation = 0.187) (p = 0.027). Conclusion Implementation of a device that accurately measures blood loss allows for a better prediction of postoperative day 1 hemoglobin concentration than is possible using visual blood loss estimation. This improvement was seen in the entire patient group and was particularly prominent in patients with blood losses of > 1,000 mL.

scholarly journals Placenta previa with posterior extrauterine adhesion: clinical features and management practice

BMC Surgery ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yoshikazu Nagase ◽  
Shinya Matsuzaki ◽  
Masayuki Endo ◽  
Takeya Hara ◽  
Aiko Okada ◽  
...  
Keyword(s):  
Propensity Score ◽  
Blood Loss ◽  
Cesarean Delivery ◽  
Clinical Features ◽  
Surgical Outcomes ◽  
Multivariate Regression ◽  
Placenta Previa ◽  
Control Group ◽  
Intraoperative Blood Loss ◽  
Intraoperative Bleeding

Abstract Background A diagnostic sign on magnetic resonance imaging, suggestive of posterior extrauterine adhesion (PEUA), was identified in patients with placenta previa. However, the clinical features or surgical outcomes of patients with placenta previa and PEUA are unclear. Our study aimed to investigate the clinical characteristics of placenta previa with PEUA and determine whether an altered management strategy improved surgical outcomes. Methods This single institution retrospective study examined patients with placenta previa who underwent cesarean delivery between 2014 and 2019. In June 2017, we recognized that PEUA was associated with increased intraoperative bleeding; thus, we altered the management of patients with placenta previa and PEUA. To assess the relationship between changes in practice and surgical outcomes, a quasi-experimental method was used to examine the difference-in-difference before (pre group) and after (post group) the changes. Surgical management was modified as follows: (i) minimization of uterine exteriorization and adhesion detachment during cesarean delivery and (ii) use of Nelaton catheters for guiding cervical passage during Bakri balloon insertion. To account for patient characteristics, propensity score matching and multivariate regression analyses were performed. Results The study cohort (n = 141) comprised of 24 patients with placenta previa and PEUA (PEUA group) and 117 non-PEUA patients (control group). The PEUA patients were further categorized into the pre (n = 12) and post groups (n = 12) based on the changes in surgical management. Total placenta previa and posterior placentas were more likely in the PEUA group than in the control group (66.7% versus 42.7% [P = 0.04] and 95.8% versus 63.2% [P < 0.01], respectively). After propensity score matching (n = 72), intraoperative blood loss was significantly higher in the PEUA group (n = 24) than in the control group (n = 48) (1515 mL versus 870 mL, P < 0.01). Multivariate regression analysis revealed that PEUA was a significant risk factor for intraoperative bleeding before changes were implemented in practice (t = 2.46, P = 0.02). Intraoperative blood loss in the post group was successfully reduced, as opposed to in the pre group (1180 mL versus 1827 mL, P = 0.04). Conclusions PEUA was associated with total placenta previa, posterior placenta, and increased intraoperative bleeding in patients with placenta previa. Our altered management could reduce the intraoperative blood loss.

Tranexamic Acid for the Prevention of Blood Loss After Cesarean Delivery

2021 ◽  
Vol 76 (9) ◽  
pp. 524-526
Author(s):  
Loic Sentilhes ◽  
Marie V. Sénat ◽  
Maela Le Lous ◽  
Norbert Winer ◽  
Patrick Rozenberg ◽  
...  
Keyword(s):  
Blood Loss ◽  
Tranexamic Acid ◽  
Cesarean Delivery

scholarly journals Anesthetic management in cesarean delivery of women with placenta previa: a retrospective cohort study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Dazhi Fan ◽  
Jiaming Rao ◽  
Dongxin Lin ◽  
Huishan Zhang ◽  
Zixing Zhou ◽  
...  
Keyword(s):  
Cohort Study ◽  
Blood Transfusion ◽  
Blood Loss ◽  
General Anesthesia ◽  
Cesarean Delivery ◽  
Retrospective Cohort ◽  
Placenta Previa ◽  
Neuraxial Anesthesia ◽  
Estimated Blood Loss ◽  
Maternal And Neonatal Outcomes

Abstract Background The incidence of placenta preiva is rising. Cesarean delivery is identified as the only safe and appropriate mode of delivery for pregnancies with placenta previa. Anesthesia is important during the cesarean delivery. The aim of this study is to assess maternal and neonatal outcomes of patients with placenta previa managed with neuraxial anesthesia as compared to those who underwent general anesthesia during cesarean delivery. Methods A retrospective cohort study was performed of all patients with placenta preiva at our large academic institution from January 1, 2014 to June 30, 2019. Patients were managed neuraxial anesthesia and general anesthesia during cesarean delivery. Results We identified 1234 patients with placenta previa who underwent cesarean delivery at our institution. Neuraxial anesthesia was performed in 737 (59.7%), and general anesthesia was completed in 497 (40.3%) patients. The mean estimated blood loss at neuraxial anesthesia of 558.96 ± 42.77 ml were significantly lower than the estimated blood loss at general anesthesia of 1952.51 ± 180 ml (p < 0.001). One hundred and forty-six of 737 (19.8%) patients required blood transfusion at neuraxial anesthesia, whereas 381 out of 497 (76.7%) patients required blood transfusion at general anesthesia. The rate neonatal asphyxia and admission to NICU at neuraxial anesthesia was significantly lower than general anesthesia (2.7% vs. 19.5 and 18.2% vs. 44.1%, respectively). After adjusting confounding factors, blood loss was less, Apgar score at 1- and 5-min were higher, and the rate of blood transfusion, neonatal asphyxia, and admission to NICU were lower in the neuraxial group. Conclusions Our data demonstrated that neuraxial anesthesia is associated with better maternal and neonatal outcomes during cesarean delivery in women with placenta previa.

Sign in / Sign up

Export Citation Format

Share Document