Hidden blood loss and its influencing factors after cement augmentation for vertebral metastasis

• Published in: Heliyon Vol. 10; no. 7; p. e27742
• Main Authors: Zhao, Zhenguo, Zhang, Shuguang, Xu, Libin, Xu, Songfeng, Zhang, Xinxin, Liu, Ting, Liu, Xuan, Yu, Shengji
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 15.04.2024; Elsevier
• Subjects: Cement augmentation; Hidden blood loss; Influential factors; Multivariate linear regression analysis; Pathologic vertebral compression fractures; Cement augmentation; Hidden blood loss; Pathologic vertebral compression fractures; Multivariate linear regression analysis; Influential factors
• ISSN: 2405-8440; 2405-8440
• DOI: 10.1016/j.heliyon.2024.e27742

Few studies have focused on the risk factors for hidden blood loss (HBL) during cement augmentation surgery for pathologic vertebral compression fraction (PVCFs). From January 2014 to December 2020, the clinical data of 169 PVCF patients (283 levels) who underwent cement augmentation were retrospectively analysed. HBL was calculated according to the linear Gross formula using the patient's average Hct during the perioperative course and PBV. Multivariate linear regression analysis was performed to evaluate the independent factors associated with HBL. The mean HBL was 448.2 ± 267.2 ml, corresponding to 10.8% ± 6.2% of the patient blood volume (PBV). There were significant differences between pre- and postoperative haematocrit (Hct) (P < 0.001) and Hb (P < 0.001), and 132 patients developed anaemia postoperatively, while 79 patients had anaemia preoperatively (P < 0.001). Multivariate linear regression revealed that bone lesion quality (p = 0.028), number of PVCFs (p = 0.002), amount of bone cement (p = 0.027), bone cement leakage (p = 0.001), and percentage of vertebral height loss (VHL) (p = 0.011) were independent risk factors for HBL. In conclusion, patients with lytic vertebral destruction, larger amounts of bone cement, greater amounts of bone cement leakage, more PVCF(s), and greater percentages of VHL may be more prone to HBL. •This retrospective study investigated hidden blood loss (HBL) in 169 patients with pathological vertebral compression fractures undergoing cement augmentation surgery from January 2014 to December 2020.•Multivariate regression identified lytic vertebral destruction, increased bone cement volume, cement leakage, higher PVCF numbers, and greater vertebral height loss as independent risk factors for HBL.•Additionally, it is worth noting that this study represents the first investigation specifically addressing HBL in the context of vertebral metastasis.