Abstract
Background
There is evidence that tranexamic acid (TXA) reduces surgical bleeding and is widely used in trauma, obstetrics and other specialties. This practice is less well-established in laparoscopic sleeve gastrectomy (LSG) due to concerns surrounding venous thromboembolism (VTE); equally postoperative bleeding is a serious complication often requiring re-operation.
Methods
This retrospective cohort study compared 30-day outcomes following primary LSG in patients receiving intra-operative TXA (March 2020–July 2022) to those who did not (March 2011–March 2020). The primary outcome was postoperative bleeding (Hb < 9 g/dL) requiring transfusion or re-operation. Secondary outcomes were incidence of VTE, serious postoperative complications (Clavien-Dindo > grade 3) and death. Patients underwent standardised-protocol LSG without staple line re-enforcement under a single surgeon within the independent sector (private practice). TXA 1 g intravenous was administered immediately after a methylene blue leak test, prior to extubation.
Results
TXA group had 226 patients and non-TXA group had 192 patients. Mean age was 40.5 ± 10.3 and 39.1 ± 9.8 years, respectively. In the TXA group, no postoperative bleeds [versus 3 (1.6%) in non-TXA group, p = 0.0279] occurred. One staple line leak (0.4%) occurred in the TXA group compared to zero in the non-TXA group (p = ns). There was no VTE or death.
Conclusions
This is the largest cohort study of intra-operative TXA in primary LSG to date, which demonstrates significant decrease in postoperative bleeding without increasing VTE risk. The authors recommend administration of TXA immediately following leak test, or removal of bougie to maximise efficacy. Data of TXA in LSG is awaited from the randomised controlled PATAS trial.
Graphical Abstract
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Reproduced from Park et al., 2015 [13] under Creative Commons 4.0 License. tPA tissue plasminogen activator, FDP fibrin degradation products
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Dr. Natasha Das, Bhubaneswar, India, provided substantial editing and formatting services for this manuscript.
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This study was registered as an audit in Homerton Hospital R&D. Ethical approval was not required for this retrospective study.
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Key points
• This is the largest cohort study of TXA in LSG to date.
• Demonstrates a significant decrease in postoperative bleeding without any increase in VTE risk.
• No significant change in leak rate was demonstrated.
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Hossain, N., Kaur, V., Mahran, M. et al. Intra-operative Tranexamic Acid Administration Significantly Decreases Incidence of Postoperative Bleeding Without Increasing Venous Thromboembolism Risk After Laparoscopic Sleeve Gastrectomy: a Retrospective Cohort Study of Over 400 Patients. OBES SURG 34, 396–401 (2024). https://doi.org/10.1007/s11695-023-07021-3
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DOI: https://doi.org/10.1007/s11695-023-07021-3