The Effect of Local Infiltration of Tranexamic Acid on Postoperative Blood Loss in Orthognathic Surgery
NCT ID: NCT06983886
Last Updated: 2025-05-21
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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NOT_YET_RECRUITING
PHASE1/PHASE2
25 participants
INTERVENTIONAL
2025-05-12
2026-09-30
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
The randomization result will be sealed in an opaque envelope, which will be opened in the operating room prior to surgery by a resident not involved in the surgical procedure. The envelope will contain the randomization assignment and instructions for drug preparation. This uninvolved resident will prepare two syringes labeled for the left (L) and right (R) sides accordingly.
The randomization assignment will remain blinded to the subject, surgical team, evaluator.
TREATMENT
TRIPLE
Study Groups
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Lidocaine with adrenaline and normal saline solution
A local anesthetic solution was prepared by mixing 10 ml of 1% lidocaine with adrenaline (1:100,000) and 5 ml of normal saline (NSS), resulting in a total volume of 15 ml. The solution was injected at the planned mandibular osteotomy sites on both the medial and lateral aspects of the ramus of the mandible. The injection was administered after the induction of general anesthesia, followed by a 5-minute waiting period to allow the anesthetic to take effect before making the surgical incision.
This solution will be used on either left or right side of mandible depends on the randomized result, and the other side will be given the solution of another arm.
Normal Saline Solution (NSS)
A local anesthetic solution was prepared by mixing 10 ml of 1% lidocaine with adrenaline (1:100,000) and 5 ml of normal saline (NSS), resulting in a total volume of 15 ml. The solution was injected at the planned mandibular osteotomy sites on both the medial and lateral aspects of the ramus of the mandible. The injection was administered after the induction of general anesthesia, followed by a 5-minute waiting period to allow the anesthetic to take effect before making the surgical incision.
Lidocaine (drug)
A local anesthetic solution was prepared by mixing 10 ml of 1% lidocaine with adrenaline (1:100,000) and 5 ml of normal saline (NSS) or 5 ml of tranexamic acid (50 mg/ml) depends on allocated group, resulting in a total volume of 15 ml. The solution was injected at the planned mandibular osteotomy sites on both the medial and lateral aspects of the ramus of the mandible. The injection was administered after the induction of general anesthesia, followed by a 5-minute waiting period to allow the anesthetic to take effect before making the surgical incision.
Lidocaine with adrenaline and tranexamic acid
A local anesthetic solution was prepared by mixing 10 ml of 1% lidocaine with adrenaline (1:100,000) and 5 ml of tranexamic acid (50 mg/ml), resulting in a total volume of 15 ml. The solution was injected at the planned mandibular osteotomy sites on both the medial and lateral aspects of the ramus of the mandible. The injection was administered after completion of general anesthesia, followed by a 5-minute waiting period to allow the anesthetic to take effect before the surgical incision was made.
This solution will be used on either left or right side of mandible depends on the randomized result, and the other side will be given the solution of another arm.
Tranexamic Acid
A local anesthetic solution was prepared by mixing 10 ml of 1% lidocaine with adrenaline (1:100,000) and 5 ml of tranexamic acid (50 mg/ml), resulting in a total volume of 15 ml. The solution was injected at the planned mandibular osteotomy sites on both the medial and lateral aspects of the ramus of the mandible. The injection was administered after completion of general anesthesia, followed by a 5-minute waiting period to allow the anesthetic to take effect before the surgical incision was made.
Lidocaine (drug)
A local anesthetic solution was prepared by mixing 10 ml of 1% lidocaine with adrenaline (1:100,000) and 5 ml of normal saline (NSS) or 5 ml of tranexamic acid (50 mg/ml) depends on allocated group, resulting in a total volume of 15 ml. The solution was injected at the planned mandibular osteotomy sites on both the medial and lateral aspects of the ramus of the mandible. The injection was administered after the induction of general anesthesia, followed by a 5-minute waiting period to allow the anesthetic to take effect before making the surgical incision.
Interventions
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Tranexamic Acid
A local anesthetic solution was prepared by mixing 10 ml of 1% lidocaine with adrenaline (1:100,000) and 5 ml of tranexamic acid (50 mg/ml), resulting in a total volume of 15 ml. The solution was injected at the planned mandibular osteotomy sites on both the medial and lateral aspects of the ramus of the mandible. The injection was administered after completion of general anesthesia, followed by a 5-minute waiting period to allow the anesthetic to take effect before the surgical incision was made.
Normal Saline Solution (NSS)
A local anesthetic solution was prepared by mixing 10 ml of 1% lidocaine with adrenaline (1:100,000) and 5 ml of normal saline (NSS), resulting in a total volume of 15 ml. The solution was injected at the planned mandibular osteotomy sites on both the medial and lateral aspects of the ramus of the mandible. The injection was administered after the induction of general anesthesia, followed by a 5-minute waiting period to allow the anesthetic to take effect before making the surgical incision.
Lidocaine (drug)
A local anesthetic solution was prepared by mixing 10 ml of 1% lidocaine with adrenaline (1:100,000) and 5 ml of normal saline (NSS) or 5 ml of tranexamic acid (50 mg/ml) depends on allocated group, resulting in a total volume of 15 ml. The solution was injected at the planned mandibular osteotomy sites on both the medial and lateral aspects of the ramus of the mandible. The injection was administered after the induction of general anesthesia, followed by a 5-minute waiting period to allow the anesthetic to take effect before making the surgical incision.
Eligibility Criteria
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Inclusion Criteria
* undergoing orthognathic surgery (Bilateral sagittal split ramus osteotomies (BSSRO), with or without Le Fort I maxillary osteotomy)
* ASA physical status I-II
Exclusion Criteria
* History of allergy to tranexamic acid
* History of thromboembolic disorders
* Use of medications affecting blood coagulation (antiplatelet or anticoagulants) within the past 2 weeks
* History of cerebrovascular disease
* Pregnant or breastfeeding women
18 Years
50 Years
ALL
No
Sponsors
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Ramathibodi Hospital
OTHER
Responsible Party
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Chanokchon Kongkergkiat
Chanokchon Kongkergkiat, M.D.
Locations
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Department of Surgery, Faculty of Medicine, Ramathibodi Hospital, Mahidol University
Bangkok, Bangkok, Thailand
Countries
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Central Contacts
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Facility Contacts
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Other Identifiers
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MURA2025/288
Identifier Type: -
Identifier Source: org_study_id
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