Related Experiment Video
Updated: Jun 27, 2026
Clinical Efficacy of an Innovative Multidimensional Traction Therapy in Moderate Adolescent Idiopathic Scoliosis
Published on: February 10, 2026
[Clinical observation of acute hypervolemic hemodilution in scoliosis surgery on children]
Yi-qi Chen1, Yu Chen, Chen-song Ji
1Department of Anesthesiology, Shanghai Children's Medical Center, Shanghai Jiaotong University, Shanghai 200127, China.
Insights
Acute hypervolemic hemodilution (AHH) safely reduces blood transfusions and costs in pediatric posterior spinal fusion. This technique effectively manages blood loss during surgery, benefiting young patients.
Area of Science:
- Anesthesiology
- Pediatric Surgery
- Transfusion Medicine
Context:
- Pediatric spinal fusion surgery often involves significant blood loss.
- Managing intraoperative hemodynamics and minimizing transfusion requirements are critical.
- Acute hypervolemic hemodilution (AHH) is a technique to manage blood volume.
Purpose:
- To assess the clinical effectiveness and safety of AHH in pediatric posterior spinal fusion.
- To compare blood loss, transfusion needs, and outcomes between AHH and control groups.
Summary:
- A study involving 36 children undergoing posterior spinal fusion compared AHH with a control group.
- AHH involved infusing hydroxyethyl starch and saline preoperatively to maintain hemodilution.
- While intraoperative blood loss was similar, the AHH group required significantly less red blood cells and fresh frozen plasma transfusion.
Impact:
- AHH can be safely and effectively employed in pediatric posterior spinal fusion.
- This method demonstrates potential to reduce intraoperative blood transfusions.
- The findings suggest AHH may also lead to decreased medical expenses in pediatric spinal surgery.
Objective:
To evaluate the clinical efficacy and safety of acute hypervolemic hemodilution (AHH) in posterior spinal fusion surgery in children.
Methods:
36 children with scoliosis ASA I approximately II, receive of posterior spinal fusion, were randomly divided into 2 equal groups: AHH group, transfused with hydroxyethyl starch 130/0.4 and sodium chloride (Voluven) 12 ml/kg at the speed of 0.3 approximately 0.4 mlxkg(-1)xmin(-1) (for 30 approximately 40 min) through internal jugular vein before operation so as to keep the hemodilution (Hb) status during operation, and control (CNT) group. During operation when the Hb was <80 g/L or the hematocrit was < 25% blood transfusion was conducted to maintain the Hct > 25%.
Results:
There was no significant difference in intra-operative blood loss between these 2 groups. The Hb one day after operation of the AHH group was (89 +/- 12) g/L, significantly lower than that immediately after operation [(98 +/- 10) g/L, P < 0.05]. The Hb one day after operation of the CNT group was (92 +/- 22) g/L, significantly lower than that immediately after operation [(94 +/- 13) g/L, P < 0.05]. However, there were not significant differences in the Hb values between the AHH and CNT groups (all P > 0.05). Both groups received intra-operative transfusion during operation. The amount of transfused red blood cells and fresh frozen plasma of the AHH group were (18 +/- 4) ml/kg and (3.5 +/- 1.1) ml/kg respectively, both significantly lower than those of the CNT group [(28 +/- 11) and (5.8 +/- 1.8) ml/kg respectively, both P < 0.05].
Conclusion:
Able to reduce intra-operative blood transfusion and medical expense, AHH can be used safely and effectively in posterior spine fusion in children.
