Page 34 - Journal of Laparoscopic Surgery - WALS Journal
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Hana Alhomoud
          10,060 and 10,067, respectively were analyzed. The  group. This concludes that a single preoperative dose
          CRASH-2 RCT established the safety and efficacy of  (10 mg/kg) of TXA given intravenously immediately
          TXA administration for trauma patients. It showed a  before surgery reduced blood loss during laparoscopic
          significant reduction in mortality without any significant  sleeve gastrectomy. No thromboembolic incidents,
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          increase in thromboembolic events.  Tranexamic acid is  adverse reactions, or complications were encountered
          thus both safe and effective in reducing the risk of death  with the administration of TXA in this study.
          due to blood loss in trauma cases. 13
             Though the safety and the efficacy of the drug have  SUMMARY
          been established, there is no consensus about the dosage   The aim of this study was to see if TXA given as a short-
          and the best time for administration of this drug. The   term dose reduced blood loss in laparoscopic sleeve
          prescribed dosage is 1–1.5 gm or 15–25 mg/kg two to   gastrectomy.
          four times daily. The dosage of TXA advocated ranges   Tranexamic acid reduces capillary oozing, thus
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          from 1 gm  to 100 mg/kg transfused over 15 minutes   increasing the operative field visibility. It does not
          with a second infusion of 10 mg/kg/hour transfused   alter the coagulation profile and no lasting systemic or
          until wound closure is achieved. 15                 hemodynamic effects were seen in our study.
             The dose administered in the CRASH RCT was          Tranexamic acid may well be an efficient and cheap
          2 gm with 1 gm as bolus and 1 gm as continuous infusion   method to control bleeding during laparoscopic sleeve
          over the next 8 hours. 12,13  In general surgical conditions   gastrectomy.
          and in trauma where life-threatening hemorrhages
          are anticipated, a continuous infusion is advocated.   REFERENCES
          However, since laparoscopic sleeve gastrectomy is of
          much shorter time duration, we have employed a single     1.  Sinder-Pedersen S, Ramstrom G, Bernvil S, Blomback M.
                                                                  Haemostatic effect of tranexamic acid mouthwash in anti-
          bolus administration, preoperatively, in order to prevent   coagulant-treated patients undergoing oral surgery. N Engl
          intraoperative blood loss.                              J Med 1989 Mar 30;320(13):840-843.
             A total of 148 patients undergoing cardiac surgery     2.  Borea G, Montebugnoli L, Capuzzi P, Magelli C. Tranexamic
          with extracorporeal circulation were divided into six   acid as a mouthwash in anticoagulant-treated patients under-
          groups. One group did not receive TXA. The other five   going oral surgery: An alternative method to discontinuing
                                                                  anticoagulant therapy. Oral Surg Oral Med Oral Pathol 1993
          received loading doses before incision ranging from 2.5   Jan;75(1):29-31.
          to 40 mg/kg, and one-tenth, the loading dose was infused     3.  Ramstrom G, Sindert-Pederson S, Hall G, Blomback M,
          hourly for 12 hours. The quantity of blood collected by   Alander U. Prevention of postsurgical bleeding in oral
          test tubes over 12 hours represented blood loss. This   surgery using tranexamic acid without dose modification
          prospective, randomized, double blind study concluded   of oral anticoagulants. J Oral Maxillofac Surg 1993 Nov;
                                                                  51(11):1211-1216.
          that the group that received prophylactic administration     4.  Souto JC, Oliver A, Zuazu-Jausoro I, Vives A, Fontcuberta J.
          of 10 mg/kg of TXA, followed by continuous infusion of   Oral surgery in anticoagulated patients without reducing the
          1 mg/kg/hour, had the least hemorrhage. Larger doses    dose of oral anticoagulant: a prospective randomized study.
          did not provide additional hemostatic benefit. 16       J Oral Maxillofac Surg 1996 Jan;54(1):27-32.
                                                   17
             Since TXA has a plasma half-life of 1.9 hours,  and our     5.  Gasper R, Brenner B, Ardekian L, Peled M, Laufer D. Use of
          anticipated duration of surgery averaged 2 hours, a bolus   tranexamic acid mouthwash to prevent post-operative bleed-
          injection of 10 mg/kg weight was chosen as the dosage   ing in oral surgery patients on oral anticoagulant medication.
                                                                  Quintessence Int 1997 Jun;28(6):375-378.
          to maintain a therapeutically effective concentration     6.  Sindert-Pedersen S, Sternbjerg S. Effect of local antifibrinolytic
          between 5 mg/dl. Though 30% of the intravenous dose     treatment with tranexamic acid in haemophiliac undergoing
          of 10 mg/kg of TXA was detected in the urine during     oral surgery. J Oral Maxillofac Surg 1986 Sep;44(9):703-707.
          the first hour after administration and the total excretion     7.  Kovesi T, Royston D. Pharmacological approaches to reducing
                                                                  allogenic blood exposure. Vox Sang 2003 Jan;84(1):2-10.
          rose to 45% after 3 hours, approximately 55% remains     8.  Dunn CJ, Goa KL. Tranexamic acid: a review of its use
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          in circulation up to 24 hours.  Therefore, laparoscopic   in surgery and other indications. Drugs 1999 Jun;57(6):
          sleeve gastrectomy surgery does not require a continuous   1005-1032.
          infusion since postoperative hemorrhage is of lesser     9.  Sankar D, Krishnan R, Veerabahu M, Vikraman B. Evaluation
          concern than management of immediate hemorrhage in      of the efficacy of tranexamic acid on blood loss in orthog-
          order to clear the field during surgery.                nathic surgery: a prospective, randomized clinical study. Int
                                                                  J Oral Maxillofac Surg 2012 Jun;41(6):713-717.
             Our results have shown that none of the TXA patients     10.  Athanasiadis T, Beule AG, Wormad PJ. Effects of topical anti-
          needed a transfusion and the average fall in hemoglobin   fibrinolytics in endoscopic sinus surgery: a pilot randomized
          and the volume of blood lost is much less in the TXA    controlled trial. Am J Rhinol 2007 Nov-Dec;21(6):737-742.

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