Accuracy in measuring intraoperative bleeding in obstetric procedures: Gravimetric quantification versus visual estimation

Main Article Content

Anabel Cervantes-Sánchez https://orcid.org/0009-0009-7127-5267
María de Jesús Jiménez-González https://orcid.org/0000-0003-3806-0714
Marisol Silva-Vera https://orcid.org/0000-0002-1984-4241
Raul Fernando Guerrero-Castañeda https://orcid.org/0000-0003-3996-5208

Keywords

Uterine Hemorrhage, Nursing, Gravimetric Quantification

Abstract

Introduction: Hemorrhage during obstetric surgical procedures increases morbidity and mortality and has an influence upon the intraoperative outcome. Gravimetric quantification of textile material is an accurate method during the intraoperative period.


Objective: To implement an educational intervention based on gravimetric quantification of textile material and routine visual estimation during the intraoperative period of obstetric procedures.


Methodology: A quasi-experimental study was conducted to compare the accuracy of visual estimation and gravimetric quantification methods in 70 obstetric surgical procedures. 117 nursing professionals participated in the educational intervention, which was structured in 4 phases: situational diagnosis, theoretical update, ethical validation, and practical workshops on the use of digital scales. The staff's visual perception was compared with the actual weight of the textile material, obtained by subtracting the standardized dry weight.


Results: The difference between the visual and gravimetric methods of measuring hemorrhage in textile material during the intraoperative period of obstetric procedures was 11.2%. A difference of 4.25 g was observed between both methods (p = 0.005).


Conclusions: The implementation of gravimetric quantification of textile material improves the ability to identify abnormal bleeding in patients undergoing obstetric procedures.

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References

Robinson D, Basso M, Chan C, et al. Guideline No. 431: Postpartum Hemorrhage and Hemorrhagic Shock. J Obstet Gynaecol Can. 2024;46(5):102174. doi: 10.1016/j.jogc.2023.06.007

Thurer RL, Doctorvaladan S, Carvalho B, et al. Limitations of Gravimetric Quantitative Blood Loss during Cesarean Delivery. AJP Rep. 2022;12(1):e36-40. doi: 10.1055/s-0041-1742267

Bhatt A, Hughes-Hogan L, Mitchell T, et al. Impact of measuring quantification of blood loss versus estimation of blood loss during cesarean deliveries. Int J Gynaecol Obstet. 2023;160(2):670-7. doi: 10.1002/ijgo.14337

Chávez-Navarro JJ, Yépez-Jiménez G, Cruz-Aceves I, et al. Análisis comparativo de volumen de sangrado mediante técnica visual. Rev Med Inst Mex Seguro Soc. 2023;61 Supl 2:S220-5.

De la Torre-León T, De la Torre-León MA, Carrillo-Esper R, et al. Guías de Práctica para el manejo de la hemorragia obstétrica. Rev Med Anestesiol. 2017;40(2):420-1.

[No authors listed] Quantitative Blood Loss in Obstetric Hemorrhage: ACOG COMMITTEE OPINION, Number 794. Obstet Gynecol. 2019;134(6):e150-6. doi: 10.1097/AOG.0000000000003564

Gerdessen L, Meybohm P, Choorapoikayil S, et al. Comparison of common perioperative blood loss estimation techniques: a systematic review and meta-analysis. J Clin Monit Comput. 2021;35(2):245-58. doi: 10.1007/s10877-020-00579-8

Luiz CB, Müller ALL, Salazar CC, et al. Multidisciplinary team training in postpartum hemorrhage: impact on the use of blood products. Rev Bras Ginecol Obstet. 2024(18);46:e-rbgo67. doi: 10.61622/rbgo/2024rbgo67

De Moreuil C, Mehic D, Nopp S, et al. Hemostatic biomarkers associated with postpartum hemorrhage: a systematic review and meta-analysis. Blood Adv. 2023;7(19):5954-67. doi: 10.1182/bloodadvances.2023010143

Bingham D, Scheich B, Bateman B. Structure, process, and outcome data of AWHONN’s postpartum hemorrhage quality improvement project. J Obs Gynecol Neonatal Nurs. 2018;47:707-18. doi: 10.1016/j.jogn.2018.05.002

Rubenstein AF, Zamudio S, Douglas C, et al. Automated quantification of blood loss versus visual estimation in 274 vaginal deliveries. Am J Perinatol. 2021;38(10):1031-5. doi: 10.1055/s-0040-1701507

Tan AWM, Lee SH, Sultana R, et al. Accurate estimation of blood loss during cesarean deliveries: A secondary analysis of a randomized controlled trial comparing visual, quantitative and calculated approaches. Acta Obstet Gynecol Scand. 2025;104(11):2146-54. doi: 10.1111/aogs.70052

Lutfi A, Eustace D, McKee B, et al. Early feasibility and usability study of a novel obstetric blood loss quantifying device. Eur J Obstet Gynecol Reprod Biol. 2024;302:190-5. doi: 10.1016/j.ejogrb.2024.09.018

Lutfi A, Eustace D, Faul S, et al. Accuracy testing of a novel obstetric blood loss quantifying device: A pilot study. Int J Gynaecol Obstet. 2024;165(3):1290-2. doi: 10.1002/ijgo.15385

Gari A, Hussein K, Daghestani M, et al. Estimating blood loss during cesarean delivery: A comparison of methods. J Taibah Univ Med Sci. 2022;17(5):732-6. doi: 10.1016/j.jtumed.2022.03.004

Katz D, Farber MK. Can measuring blood loss at delivery reduce hemorrhage-related morbidity? Int J Obstet Anesth. 2021;46:102968. doi: 10.1016/j.ijoa.2021.102968

Piekarski F, Gerdessen L, Schmitt E, et al. Quantification of Intraoperative Blood Loss in a Simulated Scenario Using a Novel Device. Shock. 2021;55(6):759-65. doi: 10.1097/SHK.0000000000001615

Rubenstein AF, Zamudio S, Al-Khan A, et al. Clinical experience with the implementation of accurate measurement of blood loss during cesarean delivery: influences on hemorrhage recognition and allogeneic transfusion. Am J Perinatol. 2018;35(7):655-9. doi: 10.1055/s-0037-1613675

Ingray V, Williams CR, Al-Beity FMA, et al. Strategies for optimising early detection and obstetric first response management of postpartum haemorrhage at caesarean birth: a modified Delphi-based international expert consensus. BMJ Open. 2024;14(5):e079713. doi: 10.1136/bmjopen-2023-079713

Černý V, Pařízek A, Bláha J, et al. Diagnosis and treatment of peripartum haemorrhage, consensus of the interdisciplinary working group by the modified ACCORD method. Ceska Gynekol. 2025;90(1):72-89. doi: 10.48095/cccg202572

Rubenstein AF, Block M, Zamudio S, et al. Accurate assessment of blood loss during cesarean delivery improves estimation of postoperative hemoglobin. Am J Perinatol. 2019;36(4):434-9. doi: 10.1055/s-0038-1669397