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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT03310060
Other study ID # 201700271A3
Secondary ID
Status Not yet recruiting
Phase Phase 4
First received October 2, 2017
Last updated October 10, 2017
Start date November 1, 2017
Est. completion date December 31, 2018

Study information

Verified date September 2017
Source Chang Gung Memorial Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this study is to conduct a prospective randomized controlled trial to investigate the blood-conservation effect of the topical hemostatic agents in patients receiving primary TKA procedures. The investigators will also observe if there is increased risk of blood transfusion rate by using topical hemostatic agents or not.


Description:

Total knee arthroplasty (TKA) is associated with considerable blood loss and increasing needs for allogenic blood transfusion. Previous studies demonstrated a transfusion rates ranging from 6% to 38% after standard TKAs. Transfusion carries significant risks of cardiopulmonary embarrassment, disease transmission, immunological reaction and postoperative infection.

The major causes of postoperative blood loss following TKA are attributed to surgery itself which induces a considerable activation of the coagulation cascade and local fibrinolysis, the latter is further enhanced after release of the tourniquet at the end of surgery. Tranexamic acid (TXA), an inhibitor of fibrinolysis, was reportedly effective reducing blood loss after standard TKA. Previous experiences in minimally invasive (MIS) TKA showed that intraoperative infusion of TXA reduced 45% of postoperative blood loss and needs for transfusion from 20% to 4%. However, the safety to use TXA systemically in TKAs especially in high risk patients remains controversial. A recent study by Nishihara et al. demonstrated that use of TXA in total hip arthroplasty did not appear to affect the prevalence of either proximal DVT or PE. Another study by Xie J et al. also showed the incidence of postoperative VTE was unchanged when TXA was administered in primary unilateral TKA, but in their study the total occurrence of vascular occlusive events was statistically significantly higher (17.55% Vs 9.35%, p < 0.001) in the TXA group. However, in this two studies the patient with high risk of thromboembolic events (ischemic heart disease, chronic renal failure on hemodialysis, cerebral infarction, previous VTE disease, thrombophilia associated with genetic diseases) were excluded.

The investigators believe the use of hemostatic agent topically in patients with high risk of thromboembolism can avoid its systematic effect and decrease its potential perioperative risk of thromboembolic complications (arterial thrombosis, myocardial infarction and pulmonary embolism). On the other hand, thrombin-based hemostatic agents, TisseelĀ®, have been widely used in surgical procedure including gynecology, general surgery, and orthopedics which were still attracting the attention and interest of multitudinous surgeons. Some recent studies demonstrated that topic use of TisseelĀ® in primary TKA can reduce hemoglobin decline and calculated total blood loss after TKA and is not related to adverse reactions or complications such as wound infection, venous thromboembolism events(VTE). But there were another studies showed TisseelĀ® does not reduce blood loss in TKA procedures.

The purpose of this study therefore is to conduct a prospective randomized controlled trial to investigate the blood-conservation effect of the topic hemostatic agents and their safety in a primary TKA procedures in patients with risk of thromboembolic events. The first group by topical Tisseel and intravenous TXA application, and the second group of placebo IV TXA then observe whether there is difference in the blood-conservation effect by total blood loss calculation, hemoglobin loss and transfusion requirement among different groups.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 100
Est. completion date December 31, 2018
Est. primary completion date August 31, 2018
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 20 Years to 85 Years
Eligibility Inclusion Criteria:

- After cardiologist or neurologist's evaluation, patients who was classified as low-risk of perioperative risk with advanced knee osteoarthritis who was failure of medical treatment or rehabilitation and within age limit

Exclusion Criteria:

- Preoperative Hemoglobin ?12 g/dl History of infection or intraarticular fracture of the affective knee, Renal function deficiency (GFR < 30 ml/min/1.73m2), Elevated liver enzyme, history of liver cirrhosis, impaired liver function and coagulopathy

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Tisseel
Tisseel® (Fibrin Sealant, 4ml, Baxter) was applied on potential bleeding sites: the femoral insertion of the posterior cruciate ligament, the lateral genicular artery after resection of the meniscus, the posterior capsule of the knee joint, the bony surfaces not covered by the implant as well as the pinholes (femur and tibia). The entire content of a 4 mL vial containing the active product was used
Tranexamic Acid
Drug: Tranexamic acid Intravenous application of tranexamic acid 15mg/kg in 100 ml normal saline before surgical incision and 3 hours after surgery

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Chang Gung Memorial Hospital

Outcome

Type Measure Description Time frame Safety issue
Primary Total blood loss after operation Total blood loss was calculated according to Nadler et al., which used maximum postoperative reduction of the Hb level adjust for weight and height of the patient. The formula is as follows, Total blood loss = (Total blood volume x [change in Hb level / preoperative Hb level])x1000+volume transfused from the operation to the postoperative day 3
Secondary Incidence of any thrombotic events the composite of any suspected venous thromboembolism events, ischemic heart diseases, or cerebrovascular accidents within 30 days of the operation
Secondary Incidence of wound infection after surgery composite of wound poor healing, superficial wound infection, and deep infection requiring return to surgery within 30 days of the operation
Secondary Blood transfusion requirement compare blood transfusion requirement between two groups from the operation to postoperative day 14
Secondary Calculated blood loss from drainage blood loss was calculated according to the hemovac drainage record every eight hours after operation until removal. from the operation to the postoperative day 2 until drainage removal
See also
  Status Clinical Trial Phase
Completed NCT02427711 - Reduced Total Blood Loss and Blood Transfusion in Non-Septic Revision Knee Arthroplasty Using a Bipolar Sealer N/A
Recruiting NCT05504577 - Kaolin-based Hemostatic Gauze in Total Knee Arthroplasty Phase 4
Recruiting NCT04855877 - Oral Administration of Tranexamic Acid in Anterior Cruciate Ligament Surgery Reduce Postoperative Haemarthrosis Phase 4
Completed NCT02393300 - Comparison of Topical Versus Intravenous Tranexamic Acid in TKA Phase 3
Completed NCT04691362 - Noninferiority Oral Tranexamic Acid vs Intravenous Administration in Total Hip Arthroplasty Phase 4
Not yet recruiting NCT05144425 - Evaluation of Blood Loss and Pain in TKA With and Without Pneumatic Tourniquet, A Randomized Controlled Trial N/A