Project description:Mortality from acute variceal bleeding (AVB) has improved markedly over the last 2-3 decades due to increased specialisation and standardisation of medical and endoscopic practice culminating in the production of consensus guidance based on expert opinion. Nonetheless, despite greater exposure, training and endoscopic practices, 30-day mortality still remains high at around 30%. This is a reflection of the high morbidity with liver disease, and limited endoscopic experience and/or endoscopic techniques used by the majority of general endoscopists. Clinical necessity defines our drive for further endoscopic innovation to improve 'best practice' and, therefore, clinical outcomes accordingly. Sclerotherpy, variceal band ligation and/or rescue balloon tamponade have been entrenched in most treatment algorithms over the decades. However, in recent years and albeit limited to specialised liver centres, cyanoacrylate glue injection therapy (for oesophageal and gastric varices), and the placement of a self-expanding metallic stent for oesophageal varices have begun to offer improved endoscopic care in experienced hands. Yet even in specialised centres, their application is sporadic and operator dependent. Here, we discuss the evidence of these newer endoscopic approaches, and hope to propose their inclusion in endoscopic therapy algorithms for 'best practice' management of AVB in all appropriately supported endoscopy units.
Project description:N-butyl cyanoacrylate, one of embolic materials, is usually used as a mixture with Lipiodol (N-butyl cyanoacrylate-Lipiodol mixture). N-butyl cyanoacrylate-Lipiodol-Iopamidol was developed by adding a nonionic iodine contrast agent (Iopamiron) to N-butyl cyanoacrylate-Lipiodol mixture. N-butyl cyanoacrylate-Lipiodol-Iopamidol has lower adhesiveness than N-butyl cyanoacrylate-Lipiodol mixture and the ability to form a single large droplet. We report the case of a 63-year-old man with a ruptured splenic artery aneurysm treated by transcatheter arterial embolization using N-butyl cyanoacrylate-Lipiodol-Iopamidol. He was referred to the emergency room because of sudden onset of upper abdominal pain. A diagnosis was established using contrast-enhanced computed tomography and angiography. Emergency transcatheter arterial embolization was performed, and the ruptured splenic artery aneurysm was successfully embolized using a combination of coil framing and N-butyl cyanoacrylate-Lipiodol-Iopamidol packing. This case demonstrates the usefulness of a combination of coil framing and N-butyl cyanoacrylate-Lipiodol-Iopamdol packing for the embolization of aneurysms.
Project description:Surgical site infection (SSI) is associated with increased morbidity, length of stay, and cost. Cyanoacrylate glue is a low-cost, fluid-proof, antimicrobial barrier. The aim of this systematic review is to assess the use of cyanoacrylate glue after standard wound closure versus dressings in the reduction of SSI. Medline, Embase, Cochrane Library, and clinical trial registries were searched with no restrictions in accordance with PRISMA guidelines. Eligibility criteria were prospective studies comparing glue versus dressings after standardised wound closure. Two reviewers independently screened articles and utilised GRADE for quality assessment. Meta-analysis was not performed because of the heterogeneity of the data. Three articles were included in the review. Study quality was uniformly low. Incidence of SSI was low, between 0% and 4%. No significant differences were reported in the single randomised controlled trial. A single non-randomised parallel group trial reported a significant reduction in the incidence of SSI in the cyanoacrylate group. There was no consistent evidence demonstrating reduction in SSI as a result of the use of cyanoacrylate glue. Future studies should assess the use of cyanoacrylate in procedures with a higher rate of SSI, for example, lower limb bypass.
Project description:Gastric varices are found in approximately 20% of patients with portal hypertension. Endoscopic procedures involving the injection of cyanoacrylate (CYA) have proven to be the therapies of choice for primary treatment of gastric varices and have resulted in higher hemostasis rates and lower recurrent bleeding rates compared with band ligation and sclerotherapy. Nevertheless, serious adverse events associated with CYA injection, including glue embolization, have been reported in numerous articles and have occasionally led to fatal adverse events. Gastric fundal varices with abnormal shunts are higher-risk than those without abnormal shunts, and their treatment is more challenging. Endoscopic ultrasound (EUS)-guided puncture is an important technique in the field of digestive endoscopy. EUS has advantages that include improved therapeutic targeting, enhanced variceal detection, the ability to confirm varix obliteration with Doppler examination, and the ability to perform accurate observations of gastric varices that are not affected by blood in the stomach. The coils currently used for intravascular embolization can be precisely delivered into a varix through fine-needle puncture under EUS guidance, and this technique has provided a new approach for varix obliteration. We herein describe two patients with severe gastric fundal varices who were treated with EUS-guided coil injection and CYA embolization.
Project description:BackgroundAnastomotic leakage (AL) is the most frequent life-threating complication following colorectal surgery. Several attempts have been made to prevent AL. This prospective, randomized, multicentre trial aimed to evaluate the safety and efficacy of nebulised modified cyanoacrylate in preventing AL after rectal surgery.MethodsPatients submitted to colorectal surgery for carcinoma of the high-medium rectum across five high-volume centres between June 2021 and January 2023 entered the study and were randomized into group A (anastomotic reinforcement with cyanoacrylate) and group B (no reinforcement) and followed up for 30 days. Anastomotic reinforcement was performed via nebulisation of 1 mL of a modified cyanoacrylate glue. Preoperative features and intraoperative and postoperative results were recorded and compared. The study was registered at ClinicalTrials.gov (ID number NCT03941938).ResultsOut of 152 patients, 133 (control group, n = 72; cyanoacrylate group, n = 61) completed the follow-up. ALs were detected in nine patients (12.5%) in the control group (four grade B and five grade C) and in four patients (6.6%), in the cyanoacrylate group (three grade B and one grade C); however, despite this trend, the differences were not statistically significant (p = 0.36). However, Clavien-Dindo complications grade > 2 were significantly higher in the control group (12.5% vs. 3.3%, p = 0.04). No adverse effects related to the glue application were reported.ConclusionThe role of modified cyanoacrylate application in AL prevention remains unclear. However its use to seal colorectal anastomoses is safe and could help to reduce severe postoperative complications.
Project description:Cyanoacrylate glue (CG) is a commonly employed modality for sealing small corneal perforations. Presently, we describe the technique of emulsion polymer isocyanate (EPI)-gluing, a modification of its application, and its results in nine eyes with noninfectious, nontraumatic sterile corneal perforation with size ≤3 mm. The method involves harvesting a small patch of autologous epithelium adjacent to the melt area with the help of 10% alcohol and transplanting to the site of melt with its basement membrane facing downwards. CG, loaded on the reverse side of Sinskey hook or Weck-Cel sponge, is instilled on this epithelium-melt site complex and withdrawn immediately following which a bandage contact lens is placed on the corneal surface. In our series of patients with nine eyes where EPI-gluing was undertaken, all eyes reported a healed corneal scar with spontaneously dislodged glue and no underlying vascularization at 3-months follow-up. EPI-gluing is an inexpensive and host-friendly technique for the treatment of small noninfectious corneal perforations particularly with iris tissue prolapse.
Project description:Background:Uniportal video-assisted thoracoscopic surgery (VATS) for primary spontaneous pneumothorax (PSP) has demonstrated acceptable surgical outcomes while being less invasive than other surgical techniques. Fibrin glue-covered absorbable mesh has been applied to reinforce resected regions to prevent recurrence. We aimed to evaluate the outcomes of this technique without pleural abrasion in uniportal VATS for PSP. Methods:Between July 2012 and May 2017, 54 consecutive patients with PSP underwent uniportal VATS by a combination technique using a polyglycolic acid (PGA) sheet and fibrin glue without mechanical pleural abrasion. A bilateral approach was performed in five additional patients; thus, postoperative surgical outcomes of a total of 59 cases were analyzed. For subgroup analysis, we first divided the patients into a group of PGA sheet coverage, followed by additional fibrin glue application (n=36, Group A) and a group of fibrin glue injection prior to PGA sheet coverage (n=23, Group B). We reviewed the data and compared surgical outcomes to evaluate the efficacy of the application techniques. Results:There was a total 59 cases (43 males) with a median age of 18.0 years (range, 12-50 years). Demographic data revealed no differences between the two groups. There was no significant difference in operation time (41.8±10.1 vs. 41.3±8.8 minutes, P=0.821), length of hospital stay (4.1±1.3 vs. 3.8±1.1 days, P=0.411), or chest tube in-dwelling time (2.6±0.9 vs. 2.2±0.7 days, P=0.078) in the additional glue application and glue injection groups. Recurrence rates revealed no significant difference [2/36 (5.5%) vs. 1/23 (4.3%), P=0.837] between the two groups. There were neither conversions to multi-port VATS nor perioperative complications during a median follow-up period of 21.5 months. Conclusions:The combination method of the absorbable PGA sheet with fibrin glue established satisfactory outcomes without increasing morbidities, regardless of application technique. This simple technique is an effective procedure that does not require mechanical pleural abrasion or pleurodesis to prevent postoperative recurrences when conducting uniportal VATS for PSP.
Project description:Background and aimsHemodynamic response to pharmacotherapy improves survival in patients with cirrhosis post variceal bleeding, but long-term outcomes remain unexplored especially in this part of the world. We aimed to study the long-term impact of portal pressure reduction on liver-related outcomes after index variceal bleed.MethodsPatients with hepatic venous pressure gradient (HVPG) more than 12 mm Hg after index variceal bleed were given non-selective beta-blockers in combination with variceal band ligation. HVPG response was assessed after 4 weeks. Patients were followed up for rebleed events, survival, additional decompensation events and safety outcomes. Rebleed and other decompensations were compared using competing risks analysis, taking death as competing event, and survival was compared using Kaplan-Meier analysis.ResultsForty-eight patients (29 responders and 19 non-responders) were followed up for a median duration of 45 (24-56) months. Rebleeding rates at 1, 3 and 5 years were 10.3%, 20.7% and 20.7% in responders and 15.8%, 44.7% and 51.1% in non-responders, respectively (Gray's test, P = 0.044). Survival rates at 1, 3 and 5 years were 89.7%, 72.1% and 51.9% in responders and 89.5%, 44% and 37.7% in non-responders, respectively (log-rank test, P = 0.1). Both severity of liver disease (MELD score, multivariate sub-distributional hazards ratio: 1.166 [1.014-1.341], P = 0.030) and HVPG non-response (multivariate sub-distributional hazards ratio: 2.476 [1.87-7.030], P = 0.045) predicted rebleeding risk while survival was dependent only on severity of liver disease (MELD > 12, multivariate hazards ratio: 2.36 [1.04-5.38], P = 0.041).ConclusionBaseline severity of liver disease predicted survival and rebleed in these patients. Hemodynamic response, although associated with lower rebleeding rate, had limited impact on survival.