Objectives: Perioperative bleeding remains a major concern to all clinicians caring for perioperative patients. Due to the theoretical risk of thromboembolic events associated with tranexamic acid (TXA) when administered intravenously, topical route of TXA has been extensively studied, but its safety and efficacy profile remain unclear in the literature. The primary aim of this review was to assess the effect of topical TXA on incidence of blood transfusion and mortality in adults undergoing surgery. Data sources: EMBASE, MEDLINE, CENTRAL, and ISI Web of Science were systematically searched from their inception until May 31, 2019. Review methods: Parallel-arm randomized controlled trials were included. Results: Seventy-one trials (7539 participants: orthopedics 5450 vs nonorthopedics 1909) were included for quantitative meta-analysis. In comparison to placebo, topical TXA significantly reduced intraoperative blood loss [mean difference (MD) À36.83 mL, 95% confidence interval (CI) À54.77 to À18.88, P < 0.001], total blood loss (MD À319.55 mL, 95% CI À387.42 to À251.69, P < 0.001), and incidence of blood transfusion [odds ratio (OR) 0.30, 95% CI 0.26-0.34, P < 0.001]. Patients who received topical TXA were associated with a shorter length of hospital stay (MD À0.28 days, 95% CI À0.47 to À0.08, P ¼ 0.006). No adverse events associated with the use of topical TXA were observed, namely mortality (OR 0.78, 95% CI 0.45-1.36, P ¼ 0.39), pulmonary embolism (OR 0.73, 95% CI 0.27-1.93, P ¼ 0.52), deep vein thrombosis (OR 1.07, 95% CI 0.65-1.77, P ¼ 0.79), myocardial infarction (OR 0.79, 95% CI 0.21-2.99, P ¼ 0.73), and stroke (OR 0.85, 95% CI 0.28-2.57, P ¼ 0.77). Of all included studies, the risk of bias assessment was ''low'' for 20 studies, ''unclear'' for 26 studies and ''high'' for 25 studies. Conclusions: In the meta-analysis of 71 trials (7539 patients), topical TXA reduced the incidence of blood transfusion without any notable adverse events associated with TXA in adults undergoing surgery. PROSPERO: CRD 42018111762.
Aim Cytoreductive surgery (CRS) for peritoneal malignancy has traditionally included umbilical excision with no published evidence on the incidence of umbilical involvement. The primary aim of this work was to determine the incidence of umbilical involvement in patients undergoing CRS for peritoneal malignancy of appendiceal origin. The secondary aim was to investigate the relationship of umbilical involvement with prior surgery affecting the umbilicus, such as diagnostic laparoscopy and midline laparotomy. Method This study is from a national referral centre in the United Kingdom for appendiceal tumours and peritoneal malignancy. It is a retrospective analysis from a dedicated prospective database. We evaluated the most recent 200 consecutive patients who underwent CRS for peritoneal malignancy of appendiceal origin where all pathology specimens were reported by a recognized expert pathologist in appendiceal tumours and peritoneal malignancy. Results From June 2016 to September 2019, 200 consecutive patients had CRS and 178 had umbilical excision. Of these 54/178 (30.3%) had disease involving the umbilicus. The pathological findings in the 178 patients were low‐grade mucinous carcinoma peritonei in 90/178 (50.6%), high‐grade mucinous carcinoma peritonei in 31/178 (17.4%), metastatic appendiceal adenocarcinoma in 29/178 (16.4%) and diffuse acellular mucin in 28/178 (15.7%). Umbilical involvement was found in 25/90 (27.8%) with low‐grade, 11/31 (35.5%) with high‐grade, 8/29 (27.6%) with adenocarcinoma and 10/28 (35.7%) of patients with acellular mucin. In the 54 patients with umbilical disease, 30/54 (55.6%) had previous diagnostic surgery affecting the umbilicus. In the 124 patients without umbilical disease, 76/124 (61.2%) had prior surgery involving the umbilicus. The difference between the groups was not significant (p = 0.24). Conclusion In patients with peritoneal malignancy of appendiceal origin, approximately 30% have umbilical involvement, irrespective of the primary appendiceal pathology. Umbilical involvement was not associated with prior surgery involving the umbilicus. This is the first report to document the incidence of umbilical pathology and supports consideration of routine umbilical excision in CRS for peritoneal malignancy.
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