Endoscopic ultrasound (EUS)-guided drainage using lumen-apposing metal stents (LAMSs) has become the standard for managing pancreatic fluid collections (PFCs), especially walled-off necrosis (WON). However, LAMS-specific adverse events (AEs), including bleeding, stent occlusion, and infection, remain a concern. To mitigate these complications, some experts advocate placing coaxial double-pigtail plastic stents (DPPSs) within LAMSs. This narrative review critically examines the evidence from retrospective and prospective studies, one RCT, and recent meta-analyses on this combined approach. While the routine use of coaxial double-pigtail plastic stents (DPPSs) within LAMSs is not universally supported, emerging data suggest benefits in select high-risk scenarios, such as large WON, debris-rich cavities, or disconnected pancreatic duct syndrome (DPDS), in which coaxial DPPS within LAMSs can reduce occlusion, infection, and recurrence. In addition, the type of LAMS appears to influence safety outcomes: the SPAXUS stent shows lower bleeding and migration rates than the Hot AXIOS. We propose a pragmatic algorithm for the patient-tailored use of coaxial DPPS and discuss technical innovations to improve outcomes. While evidence is still evolving, personalized strategies and future high-quality studies are needed to define the optimal role of coaxial DPPS within LAMSs in the EUS-guided drainage of PFCs.
Endoscopic ultrasound (EUS) is a helpful tool for the study of the mediastinum, a challenging region for both transesophageal and endobronchial (EBUS) endosonography. This area is divided into sections and contains numerous lymph nodes essential for the staging and diagnosis of conditions like lung cancer, sarcoidosis, and infections. EUS allows for detailed examination of the mediastinal region, identifying various kinds of abnormalities, whether they are benign cysts or malignant tumors. The aim of this narrative review is to provide a clear overview of how EUS contributes to mediastinal diagnostics and to offer practical insights for clinicians. A comprehensive, non-systematic search of PubMed was conducted by the authors to identify relevant studies. EUS methods, such as elastography and contrast-enhanced imaging, have improved diagnosis by analyzing tissue stiffness and blood flow, and they help endosonographers distinguish between different conditions. EUS-guided tissue sampling techniques, like fine needle aspiration and biopsy, are crucial for detecting cancer and examining lymph nodes in a minimally invasive way. By combining EUS with endobronchial ultrasound, operators can achieve more accurate results, especially in cancer staging and treatment planning. Overall, this approach is a key tool in treating thoracic and mediastinal conditions.
Endoscopic ultrasound (EUS) with fine-needle biopsy (FNB) is one of the techniques applied for sampling subepithelial lesions (SELs) of the gastrointestinal tract. Elastography and contrast-enhanced evaluation could permit identification of different patterns among areas of the lesions, depending on their consistence and the presence of vital cells or necrosis. Targeting a specific area when performing FNB in the case of large lesions could potentially permit an increase in accuracy and reduce the need for re-sampling. A 61-year-old woman was admitted reporting severe abdominal pain. The patient underwent cholecystectomy many years ago. She had no known family history of gastrointestinal, hepatic, biliary, or pancreatic disease. Laboratory tests were normal. A computed tomography scan showed a large lesion between the stomach and the pancreatic body, suspected to originate from the gastric wall. An endoscopic view showed a large bulging into the gastric lumen and EUS identified a lesion originating from the muscular layer of the gastric wall. Elastography and contrast-enhanced EUS identified two different areas, one softer with lower enhancement (A) and the other harder with higher enhancement after contrast injection (B). FNB was performed targeting both the areas, sending samples for separate histological evaluation. Histology showed a gastrointestinal stromal tumor (GIST), finding differences in amount of necrotic and neoplastic cells between the two areas. EUS-FNB guided by elastography and/or contrast-enhanced EUS could identify differences within large SELs, allowing targeting of areas more likely to collect diagnostic samples.
Background/Objectives: Endoscopic Ultrasound with Fine Needle Biopsy (EUS-FNB) of pancreatic lesions often induces patient anxiety. Graphic medicine, an emerging health communication tool, could potentially mitigate this. This pilot study aimed to explore the feasibility of a graphic novel in reducing anxiety in adult patients awaiting EUS-FNB. Methods: This prospective, single-center, randomized pilot study was conducted from June 2024 to March 2025 in patients aged 18–89 years. The intervention group received a comic panel detailing the EUS-FNB routine, while controls had standard care. Anxiety was measured using the Beck Anxiety Inventory (BAI) and modified DASS-21 (mASS-14). Results: Overall, 65 patients (33 “Graphic Novel”, 32 “Control”) were included. Mean BAI was 4.88 (graphic novel) vs. 7.25 (controls, p = 0.092), and mASS-14 was 4.97 vs. 6.22 (p = 0.261). Anxiety prevalence was low (4.6% BAI, 13.8% mASS-14). Controls were more symptomatic (69.2%) and had a higher rate of pancreatic cancer (n = 20) compared to the graphic novel group (n = 6). Subgroup analyses showed that BAI was slightly lower for patients with children and no prior surgical experience when using graphic novels. Trends for lower anxiety appeared in those on chronic medication, under surveillance, or with solid/suspected metastatic lesions. Conclusions: This pilot study suggests that a graphic novel may help to reduce anxiety and stress scores in patients undergoing diagnostic procedures for pancreatic lesions. However, it needs confirmation in larger, adequately powered trials.