Agreement of surgical blood loss estimation methods

Transfusion ◽  
2018 ◽  
Vol 59 (2) ◽  
pp. 508-515 ◽  
Author(s):  
Sebastian Jaramillo ◽  
Mar Montane‐Muntane ◽  
David Capitan ◽  
Ferran Aguilar ◽  
Antoni Vilaseca ◽  
...  
Keyword(s):  
Blood Loss ◽  
Loss Estimation ◽  
Estimation Methods ◽  
Surgical Blood Loss ◽  
Blood Loss Estimation

The accuracy of external blood loss estimation by ambulance and hospital personnel

2003 ◽  
Vol 15 (4) ◽  
pp. 318-321 ◽  
Author(s):  
Gary Tall ◽  
David Wise ◽  
Peter Grove ◽  
Chris Wilkinson
Keyword(s):  
Blood Loss ◽  
Loss Estimation ◽  
Hospital Personnel ◽  
Blood Loss Estimation

Accuracy of Blood Loss Estimation and Measurement at Cesarean Birth

1994 ◽  
Vol 3 (4) ◽  
pp. 171-174 ◽  
Author(s):  
Mark K. Dodson ◽  
Everett F. Magann ◽  
Suneet P. Chauhan ◽  
Robert L. Harris ◽  
James N. Martin ◽  
...  
Keyword(s):  
Blood Loss ◽  
Loss Estimation ◽  
Cesarean Birth ◽  
Blood Loss Estimation

scholarly journals 251: Accuracy of colorimetric quantitative blood loss estimation for identification of postpartum hemorrhage

2019 ◽  
Vol 220 (1) ◽  
pp. S181-S182
Author(s):  
Daniel N. Pasko ◽  
Victoria C. Jauk ◽  
Robin Steele ◽  
Dhong-Jin Kim ◽  
Cherry Neely ◽  
...  
Keyword(s):  
Blood Loss ◽  
Postpartum Hemorrhage ◽  
Loss Estimation ◽  
Blood Loss Estimation

scholarly journals Effect of education and clinical assessment on the accuracy of post partum blood loss estimation

2014 ◽  
Vol 14 (1) ◽  
Author(s):  
Hanan M Al-Kadri ◽  
Hanan Dahlawi ◽  
Mona Al Airan ◽  
Elham Elsherif ◽  
Nasser Tawfeeq ◽  
...  
Keyword(s):  
Blood Loss ◽  
Clinical Assessment ◽  
Post Partum ◽  
Loss Estimation ◽  
Blood Loss Estimation

Blood Loss Estimation During Fronto-Orbital Advancement

2012 ◽  
Vol 23 (5) ◽  
pp. 1314-1317 ◽  
Author(s):  
Mitchel Seruya ◽  
Albert K. Oh ◽  
Gary F. Rogers ◽  
Kevin D. Han ◽  
Michael J. Boyajian ◽  
...  
Keyword(s):  
Blood Loss ◽  
Loss Estimation ◽  
Blood Loss Estimation

scholarly journals Comparison of common perioperative blood loss estimation techniques: a systematic review and meta-analysis

2020 ◽  
Author(s):  
Lara Gerdessen ◽  
Patrick Meybohm ◽  
Suma Choorapoikayil ◽  
Eva Herrmann ◽  
Isabel Taeuber ◽  
...  
Keyword(s):  
Systematic Review ◽  
Blood Loss ◽  
Measurement Errors ◽  
Meta Analysis ◽  
Loss Estimation ◽  
Visual Methods ◽  
Mixed Effect ◽  
Estimated Blood Loss ◽  
Blood Loss Estimation ◽  
Colorimetric Methods

Abstract Estimating intraoperative blood loss is one of the daily challenges for clinicians. Despite the knowledge of the inaccuracy of visual estimation by anaesthetists and surgeons, this is still the mainstay to estimate surgical blood loss. This review aims at highlighting the strengths and weaknesses of currently used measurement methods. A systematic review of studies on estimation of blood loss was carried out. Studies were included investigating the accuracy of techniques for quantifying blood loss in vivo and in vitro. We excluded nonhuman trials and studies using only monitoring parameters to estimate blood loss. A meta-analysis was performed to evaluate systematic measurement errors of the different methods. Only studies that were compared with a validated reference e.g. Haemoglobin extraction assay were included. 90 studies met the inclusion criteria for systematic review and were analyzed. Six studies were included in the meta-analysis, as only these were conducted with a validated reference. The mixed effect meta-analysis showed the highest correlation to the reference for colorimetric methods (0.93 95% CI 0.91–0.96), followed by gravimetric (0.77 95% CI 0.61–0.93) and finally visual methods (0.61 95% CI 0.40–0.82). The bias for estimated blood loss (ml) was lowest for colorimetric methods (57.59 95% CI 23.88–91.3) compared to the reference, followed by gravimetric (326.36 95% CI 201.65–450.86) and visual methods (456.51 95% CI 395.19–517.83). Of the many studies included, only a few were compared with a validated reference. The majority of the studies chose known imprecise procedures as the method of comparison. Colorimetric methods offer the highest degree of accuracy in blood loss estimation. Systems that use colorimetric techniques have a significant advantage in the real-time assessment of blood loss.

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