Tranexamic acid for safer surgery: the time is now

Understanding variations in the use of tranexamic acid in surgery: A qualitative interview study

Despite robust supporting evidence, around a third of eligible surgical patients do not receive tranexamic acid (TXA). Effective strategies based on an understanding of clinical behaviour are needed to increase use and improve patient outcomes. We conducted semi-structured interviews with clinicians involved in perioperative care to explore perceived influences on TXA use. We identified key influences on practice using the theoretical domains framework. We matched these to behaviour change techniques and evidence-informed implementation intervention components. Across 22 interviews, we identified eight key influences within three overarching themes of capability, opportunity and motivation. Capability influences included the clinical context and variable familiarity with TXA. Opportunity concerned the availability of both TXA and checklists to support decision-making and whether TXA use was consistent with professional expectations and perceived responsibilities. Motivation concerned confidence in administering TXA, perceived benefits and risks and training received around potential risk factors. These influences varied across participants and specialities. Our resulting proposed implementation strategy included training, clinical prompts, comparative performance feedback and opinion leadership supported by specialty-specific guidance. Any strategy to increase TXA use that improves knowledge and skills without addressing wider influences on clinical behaviour is only likely to meet with limited success.

2024 critical review of the patient blood management (PBM) recommendations of the Spanish enhanced recovery after major surgery (via RICA)

The Spanish enhanced recovery in adult surgery strategy, the "RICA pathway", was published in 2021 and includes 19 specific recommendations and more than 20 indirect recommendations for patient blood management (PBM). After reviewing these recommendations, and in the context of the new clinical evidence available, we propose the following updates: First: Detection and treatment of any preoperative anemia status in ALL patients who are candidates for major surgery with hematinic deficiencies. Second: Universal use of tranexamic acid in major surgery, bedside monitoring of intraoperative hemoglobin levels, restrictive transfusion criteria, and monitoring of patient well-being in terms of hydration, coagulability, normothermia and analgesia. Third: Restrictive transfusion criteria, single-unit blood transfusion and diagnosis/treatment of postoperative anemia. Real, universal implementation and integration of PBM in the RICA program is urgently needed.

The use of tranexamic acid in paediatric adenotonsillectomy - A systematic review and meta-analysis

BACKGROUND

Tonsillectomy and adenoidectomy (AT) are two of the most commonly performed ENT procedures in children, with over 500,000 cases performed annually in the United States. Whilst generally considered a safe and well-tolerated operation, it is not without its risks and complications including pain, nausea, anorexia and most importantly bleeding and post-tonsillectomy haemorrhage (PTH). Whilst tranexamic acid (TXA) has a proven benefit in reducing bleeding and transfusion requirements in patients undergoing trauma, spinal and cardiac surgery; the effectiveness, timing and safety of its application in paediatric tonsillectomy has not yet been established.

AIMS, OBJECTIVES & SIGNIFICANCE

To date, there has been no published systematic review of the literature specifically looking at paediatric patients undergoing AT, despite a massive surge in popularity of the use of TXA perioperatively. The aim of this study is therefore to systematically review the current literature and collate evidence regarding the efficacy and safety of using TXA to reduce bleeding in children undergoing tonsillectomy and/or adenoidectomy.

METHODS

A structured search of bibliographic databases (MEDLINE, EMBASE, PubMed, CINAHL, Cochrane CENTRAL) was undertaken to retrieve randomised controlled trials, non-randomised case-control studies and ongoing clinical trials that describe the use of TXA in paediatric patients undergoing AT. The following search terms (and their variations) were used as both medical subject headings (MeSH terms) and text words: tranexamic acid, bleeding, tonsillectomy, adenoidectomy, paediatrics. To ensure that all relevant data was captured, the search did not contain any restrictions on language or publication time. Data extraction and risk of bias assessment was performed independently and in duplicate.

RESULTS

This review identified and included a total of eight studies (n = 1315). Five studies reported on the intravenous use of TXA (n = 531) whilst three studies reported on the topical use of TXA (n = 784), and these were analysed separately. The intravenous use of TXA did not reduce intraoperative blood loss significantly (95 % CI: -0.1 to 0.33 p = 0.28) and there was not enough information to analyse the effect on PTH in these studies. Topical TXA led to a significant reduction in both intraoperative blood loss (95 % CI 0.11 to 5.31, p = 0.04) and post operative bleeding rates (RR 0.04, 95 % CI 0.01 to 0.08, P = 0.02).

CONCLUSION

The results of this systematic review and meta-analysis suggest that TXA administered via the intravenous route does not reduce perioperative bleeding associated with AT in paediatric patients. However, when topical TXA is used intraoperatively at the surgical site in paediatric patients undergoing adenoidectomy alone, there was a significant reduction in both intraoperative blood loss and post operative bleeding. TXA appears to be a safe and well-tolerated drug in the paediatric population with no adverse effects reported in this review. Nevertheless, further large and well-designed randomised controlled trials are needed to investigate the risks and benefits of TXA in paediatric AT with a particular focus on its use topically and in association with newly developed surgical equipment.

Tranexamic acid use in sarcoma surgery patients: A systematic review and meta-analysis

INTRODUCTION

Perioperative bleeding increases morbidity and mortality in sarcoma patients. Tranexamic acid (TXA), an antifibrinolytic, is widely utilized in non-sarcoma orthopaedic surgeries, but its adoption in sarcoma surgery is hindered by concerns about thrombotic events.

METHODS

Searches in Ovid MEDLINE, EMBASE, and CENTRAL were performed without date restrictions. Inclusion criteria encompassed sarcoma patients undergoing surgery with TXA intervention. Two authors independently screened studies, resolved conflicts, and assessed biases.

RESULTS

Eight studies met inclusion criteria, comprising 2142 patients. TXA administration varied in dose and timing across studies. Meta-analysis revealed significantly reduced mean blood loss with TXA of -462.5 mL ([95% confidence interval [CI: -596.7, -328.31], p < 0.001) but no difference in transfusion rates (odds ratio [OR] = 0.51 [95% CI: 0.14-1.89]) or venous thromboembolism events (OR = 0.93 [95% CI: 0.40, 2.16]). Study biases were predominantly moderate to high due to retrospective designs and lack of control for confounders. Quality of reporting varied, with limitations identified in outcome reporting and effect size estimation.

CONCLUSIONS

Despite evidence of reduced blood loss, the absence of prospective studies limits conclusive recommendations on TXA use in sarcoma surgery. Further research is warranted to determine optimal TXA regimens and assess safety concerns regarding thrombotic events in this patient population.

Tranexamic acid: a narrative review of its current role in perioperative medicine and acute medical bleeding

Purpose

Tranexamic acid (TXA) is the most widely prescribed antifibrinolytic for active bleeding or to prevent surgical bleeding. Despite numerous large multi-center randomized trials involving thousands of patients being conducted, TXA remains underutilized in indications where it has demonstrated efficacy and a lack of harmful effects. This narrative review aims to provide basic concepts about fibrinolysis and TXA's mode of action and is focused on the most recent and important trials evaluating this drug in different hemorrhagic situations.

Methods

We selected every low bias RCT, and we highlighted their strengths and limitations throughout this review.

Principal findings

While TXA appears to have a favorable benefit-risk ratio in most situations (trauma, obstetrics, at-risk for bleeding surgeries) evidence of benefit is lacking in certain medical settings (SAH, digestive bleeding).

Conclusion

Although in some situations the drug's effect on significant outcomes is modest, its favorable safety profile allows it to be recommended for trauma patients, in obstetrics, and in scheduled surgeries at risk of bleeding. However, it cannot be recommended in cases of spontaneous intracranial bleeding, subarachnoid hemorrhage (SAH), or gastrointestinal bleeding.

Perioperative Immunosuppressive Factors during Cancer Surgery: An Updated Review

Surgical excision of the primary tumor represents the most frequent and curative procedure for solid malignancies. Compelling evidence suggests that, despite its beneficial effects, surgery may impair immunosurveillance by triggering an immunosuppressive inflammatory stress response and favor recurrence by stimulating minimal residual disease. In addition, many factors interfere with the immune effectors before and after cancer procedures, such as malnutrition, anemia, or subsequent transfusion. Thus, the perioperative period plays a key role in determining oncological outcomes and represents a short phase to circumvent anesthetic and surgical deleterious factors by supporting the immune system through the use of synergistic pharmacological and non-pharmacological approaches. In line with this, accumulating studies indicate that anesthetic agents could drive both protumor or antitumor signaling pathways during or after cancer surgery. While preclinical investigations focusing on anesthetics' impact on the behavior of cancer cells are quite convincing, limited clinical trials studying the consequences on survival and recurrences remain inconclusive. Herein, we highlight the main factors occurring during the perioperative period of cancer surgery and their potential impact on immunomodulation and cancer progression. We also discuss patient management prior to and during surgery, taking into consideration the latest advances in the literature.

Safety and Outcomes in Multiplane Facial Rejuvenation with Tranexamic Acid: A Cohort Study

Background

Tranexamic acid (TXA) has demonstrated promising outcomes in plastic surgery. Our aim was to assess the effect of TXA in intraoperative bleeding, operative time, and complications among patients undergoing facial surgical procedures.

Methods

A retrospective cohort study of patients who underwent multiplane facial rhytidectomy from January 2018 to September 2022 at the Clinica Ziegler, Lima, Peru. Patients were divided into two groups according to the use of intravenous plus local infiltration of TXA. We performed the chi square test to assess associations among categorical variables, the Student t test and Mann-Whitney U test for categorical with continuous variables, and Pearson correlation for quantitative variables.

Results

A total of 100 patients were included with 50 patients in each group. The median age was 59.5 years and the majority were women (88%). The median operative time was 288.5 minutes. The TXA group presented less intraoperative bleeding (40 versus 90 mL, P < 0.05) and shorter operative time (237 versus 353 minutes, P < 0.05); no differences in the development of hematoma (2% versus 12%, P = 0.11), less ecchymosis (2% versus 36%, P < 0.05), edema (2% versus 100%, P < 0.05), and time to drain removal (3 versus 6 days, P < 0.05).

Conclusions

TXA improves the short- and long-term outcomes of patients who undergo multiplane facial rhytidectomy. It also decreases intraoperative bleeding by more than half and reduces the operative time by one third. Moreover, patients receiving TXA presented significantly less ecchymosis, edema, and time to drain removal.

Harnessing the potential of data-driven strategies to optimise transfusion practice

No one doubts the significant variation in the practice of transfusion medicine. Common examples are the variability in transfusion thresholds and the use of tranexamic acid for surgery with likely high blood loss despite evidence-based standards. There is a long history of applying different strategies to address this variation, including education, clinical guidelines, audit and feedback, but the effectiveness and cost-effectiveness of these initiatives remains unclear. Advances in computerised decision support systems and the application of novel electronic capabilities offer alternative approaches to improving transfusion practice. In England, the National Institute for Health and Care Research funded a Blood and Transplant Research Unit (BTRU) programme focussing on 'A data-enabled programme of research to improve transfusion practices'. The overarching aim of the BTRU is to accelerate the development of data-driven methods to optimise the use of blood and transfusion alternatives, and to integrate them within routine practice to improve patient outcomes. One particular area of focus is implementation science to address variation in practice.

Tranexamic acid for reduction of blood loss after Caesarean delivery: a cost-effectiveness analysis of the TRAAP2 trial

BACKGROUND

Prophylactic administration of tranexamic acid is associated with a reduction of blood loss after Caesarean delivery, but cost-effectiveness for this indication has not been assessed.

METHODS

We used data from the TRAAP2 trial, a multicentre, double-blinded, RCT aimed at estimating the efficacy of tranexamic acid for preventing postpartum haemorrhage among women undergoing Caesarean delivery. Women recruited at 27 French maternity hospitals from 2018 to 2020 were enrolled before the procedure if they had a Caesarean delivery before or during labour at 34 or more weeks of gestation. The main outcomes were the cost of hospital stay for delivery and the incremental cost per delivery without complication within 90 days after delivery with tranexamic acid compared with placebo. Differences in costs and the incremental net monetary benefit (INMB) were estimated using linear regression models, and the cost-effectiveness probability of tranexamic acid compared with placebo was estimated through the parametric distribution of the INMB.

RESULTS

The proportion of women without complications at day 90 was 70.7% in the tranexamic acid group and 66.0% in the placebo group. Mean total costs until occurrence of a complication of interest were €3321 in the tranexamic acid group and €3260 in the placebo group, resulting in a difference between the two groups of 7.2% and €55 after multiple imputation. The adjusted incremental cost-effectiveness ratio was €762 per additional Caesarean delivery without a complication at 90 days after delivery. At a cost-effectiveness threshold of €10,000, the cost-effectiveness probability of tranexamic acid compared with placebo was 99.9%, varying from 5.8% to 100.0% for thresholds from €0 to €10,000 per additional delivery without a complication at day 90.

CONCLUSION

Tranexamic acid for the prevention of blood loss is cost-effective in reducing complications after Caesarean delivery at day 90 postpartum. However, the effect size (in cost and effectiveness) is very low.

CLINICAL TRIAL REGISTRATION

NCT03431805.