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Clinical Trial Summary

Allogeneic blood products transfusions are often necessary to treat perioperative bleeding in patients undergoing complex scoliosis surgeries. A prospective, randomized trial is designed to evaluate if the infusion of fibrinogen concentrate may reduce allogeneic blood transfusion in patients undergoing scoliosis surgery. Eligible patients will be randomly assigned to treatment group (fibrinogen concentrate infusion) and control group (normal saline infusion), and functional fibrinogen will be measured to guide the infusion of fibrinogen concentrate. Perioperative blood loss, intraoperative blood loss, and the amount of perioperative allogeneic blood transfusion will be compared between the two groups to determine the effect of fibrinogen concentrate infusion.


Clinical Trial Description

This is a prospective, randomized, double-blinded, placebo controlled trial to evaluate the effects of fibrinogen concentrate infusion on perioperative blood loss and the amount of perioperative allogeneic blood transfusion in patients undergoing scoliosis surgery.

Recently, the inherent risks of blood, along with the continued rise in blood costs, activated the development and use of alternatives to blood transfusion. Fibrinogen concentrate may limit postoperative bleeding and lead to a significant reduction in allogeneic blood products transfusions in cardiac surgery and craniosynostosis surgery. However, the effect of fibrinogen concentrate in scoliosis surgery is still uncertain. Therefore, a prospective, randomized trial is designed to evaluate if the infusion of fibrinogen concentrate may reduce allogeneic blood transfusion in patients undergoing scoliosis surgery.

Patients older than 12y/o with adolescent idiopathic scoliosis planed for elective posterior scoliosis correction surgery will be enrolled for this study after informed consent. Patients will be randomly assigned to a treatment group or a control group. Functional fibrinogen will be measured using TEG 5000 (Haemoscope Corp, IL, USA) at the start of surgery and the results of FLEV and MA will be recorded. After pedicle screw placement, a second functional fibrinogen will be measured and the patients in treatment group will receive fibrinogen concentrate (FIBRORAAS, Shanghai RAAS Blood Products Co, Ltd, Shanghai, China) 30mg kg-1. For safety concern, the maximum fibrinogen concentrate administration for each individual shall not exceed either 2g. Patients in the control group will receive placebo treatment with normal saline. After 15 minutes from fibrinogen concentrate or placebo administration, a third functional fibrinogen measurement will be performed to assess the effect of treatment. The following treatment will be guaranteed by the standard protocol in the presence of ongoing bleeding.

Data includes all the demographics, preoperative conditions, procedure details, intraoperative data, and outcome measurements will be recorded. Additional data including FLEV and MA value, as well as fibrinogen values both preoperatively and at the arrival at wards. The primary endpoint of this study will be the total perioperative blood loss, and secondary endpoints will include: perioperative blood loss per fused level, intraoperative blood loss per fused level, the amount of postoperative drainage, the amount of postoperative drainage per fused level, total units of perioperative allogeneic pRBCs transfused, total volume of FFP transfused, total PLT units transfused. Safety endpoints will include operative mortality and perioperative thromboembolic complications. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03183479
Study type Interventional
Source Peking Union Medical College Hospital
Contact
Status Completed
Phase Phase 4
Start date June 14, 2017
Completion date August 31, 2019

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