Practical approach to linear endoscopic ultrasound examination of the rectum and anal canal

Okasha, Hussein Hassan; Pawlak, Katarzyna M.; Abou-Elmagd, Amr; Elmeligui, Ahmed M.; Atalla, Hassan; Othman, Mohamed O.; Elenin, Sameh Abou; Alzamzamy, Ahmed; Mahdy, Reem Ezzat

doi:10.1055/a-1922-6500

Cited by 4 publications

(6 citation statements)

References 84 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Currently, most studies have concentrated on mini-probe EUS or radial EUS 14 , with fewer investigations employing linear EUS to explore lower gastrointestinal lesions. In a recent study, linear EUS was solely utilized in the rectum 11 . However, there are minimal relevant studies on the application of linear EUS for the entire lower gastrointestinal tract due to equipment requirement and operational challenges.…”

Section: Discussionmentioning

confidence: 99%

Feasibility and clinical value of linear endoscopic ultrasonography in the lower gastrointestinal subepithelial lesions

Tao,

Chen,

Fang

et al. 2024

Preprint

View full text Add to dashboard Cite

Linear endoscopic ultrasonography (EUS) has been extensively utilized as a novel diagnostic and therapeutic modality across various fields. However, there have been relatively few studies focusing on lower gastrointestinal lesions. The aim of our study was to investigate the feasibility, safety and clinical value of linear EUS in the lower gastrointestinal subepithelial lesions. This was a retrospective study involving patients with lower gastrointestinal subepithelial lesions diagnosed by linear EUS from August 2019 to April 2023 at the Second Affiliated Hospital of Anhui Medical University. The data, including basic clinical information, linear EUS features, technical success rate, complications, and follow-up, were retrospectively collected and analyzed. A total of 69 patients with lower gastrointestinal subepithelial lesions underwent examination by linear EUS. Excluding the rectum, the technical success rate of linear EUS was 90.6% (29/32). Apart from the 7 patients whose diagnosis remained unknown, 3 patients with no abnormal EUS findings, and 3 patients failed the procedure, 56 patients were included in the final diagnostic performance analysis. The most common locations of the lesions were the rectum (37/56, 66.1%) and sigmoid colon (7/56, 12.5%). Based on endoscopy findings and pathological results, the most prevalent types of subepithelial lesions in the lower gastrointestinal tract were neuroendocrine tumor (NET) (12/56, 20.3%), lipoma (8/56, 13.6%) and extraluminal compression (8/56, 13.6%). The majority of lesions ranged in diameter from 1 to 3 cm (χ2 = 18.750, p < 0.001). After undergoing linear EUS examination, 36 patients received EUS-FNA (3/36), biopsy (5/36), endoscopic resection (25/36), or surgical excision (3/36) respectively. The pathological results of 29 patients were entirely consistent with the diagnosis made using linear EUS, with an 80.6% (29/36) diagnostic accuracy rate. Follow-up indicated that the lesions remained unchanged within 6-36 months. All patients tolerated the procedure well without any complications. In conclusion, linear EUS demonstrates technical feasibility, safety, and a high diagnostic accuracy for subepithelial lesions in the lower gastrointestinal tract.

show abstract

Section: Discussionmentioning

confidence: 99%

Feasibility and clinical value of linear endoscopic ultrasonography in the lower gastrointestinal subepithelial lesions

Tao,

Chen,

Fang

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…An additional advantage of linear EUS is the ability to sample the tissue by EUS-FNA/FNB 8 . Currently, most studies have concentrated on mini-probe EUS or radial EUS 4 , 11 – 13 , 16 , with fewer investigations employing linear EUS to explore lower gastrointestinal lesions. In a recent study, linear EUS was solely utilized in the rectum 11 .…”

Section: Discussionmentioning

confidence: 99%

“…Currently, most studies have concentrated on mini-probe EUS or radial EUS 4 , 11 – 13 , 16 , with fewer investigations employing linear EUS to explore lower gastrointestinal lesions. In a recent study, linear EUS was solely utilized in the rectum 11 . However, there are minimal relevant studies on the application of linear EUS for the entire lower gastrointestinal tract due to equipment requirement and operational challenges.…”

Section: Discussionmentioning

confidence: 99%

“…Presently, reports on the use of linear EUS in lower gastrointestinal subepithelial lesions are primarily limited to case reports and small case series 9 , 10 . A recent study has demonstrated that many rectal and anal diseases, including perianal abscesses, fistulae, polyps, and neoplastic lesions, can be well-visualized and evaluated using linear EUS 11 . Using linear EUS, cytological/histological confirmation can be obtained through EUS-guided fine needle aspiration/biopsy (EUS-FNA/FNB) 8 .…”

mentioning

confidence: 99%

See 1 more Smart Citation

Feasibility and clinical value of linear endoscopic ultrasonography imaging in the lower gastrointestinal subepithelial lesions

Tao,

Chen,

Fang

et al. 2024

Sci Rep

View full text Add to dashboard Cite

Linear endoscopic ultrasonography (EUS) has been extensively utilized as a novel diagnostic and therapeutic modality across various fields. However, there have been relatively few studies focusing on lower gastrointestinal lesions. The aim of our study was to investigate the feasibility, safety and clinical value of linear EUS in the lower gastrointestinal subepithelial lesions. This was a retrospective study involving patients with lower gastrointestinal subepithelial lesions diagnosed by linear EUS from August 2019 to April 2023 at the Second Affiliated Hospital of Anhui Medical University. The data, including basic clinical information, linear EUS features, technical success rate, complications, and follow-up, were retrospectively collected and analyzed. A total of 69 patients with lower gastrointestinal subepithelial lesions underwent examination by linear EUS. Excluding the rectum, the technical success rate of linear EUS was 90.6% (29/32). Apart from the 7 patients whose diagnosis remained unknown, 3 patients with no abnormal EUS findings, and 3 patients failed the procedure, 56 patients were included in the final diagnostic performance analysis. The most common locations of the lesions were the rectum (37/56, 66.1%) and sigmoid colon (7/56, 12.5%). Based on endoscopy findings and pathological results, the most prevalent types of subepithelial lesions in the lower gastrointestinal tract were neuroendocrine tumor (NET) (12/56, 20.3%), lipoma (8/56, 13.6%) and extraluminal compression (8/56, 13.6%). The majority of lesions ranged in diameter from 1 to 3 cm (χ2 = 18.750, p < 0.001). After undergoing linear EUS examination, 36 patients received EUS-FNA (3/36), biopsy (5/36), endoscopic resection (25/36), or surgical excision (3/36) respectively. The pathological results of 29 patients were entirely consistent with the diagnosis made using linear EUS, with an 80.6% (29/36) diagnostic accuracy rate. Follow-up indicated that the lesions remained unchanged within 6–36 months. All patients tolerated the procedure well without any complications. In conclusion, linear EUS demonstrates technical feasibility, safety, and a high diagnostic accuracy for subepithelial lesions in the lower gastrointestinal tract.

show abstract

“…In addition, EUS can be directly performed at the exact site of any significant endoscopic findings. For the evaluation of the anal canal, a radial echoendoscope is preferred, and for the rectal and pararectal regions, the linear echoendoscope is recommended 38 . EUS of the entire colon can be performed with either a forward-viewing linear echoendoscope or during conventional colonoscopy with an EUS mini probe.…”

Section: Perianal/rectal Endsoscopic Point Of Care Ultrasoundmentioning

confidence: 99%

Endoscopic Point of Care Ultrasound: Foundations, Present Applications, Future Potentials

Rabinowitz,

Sharma,

Grossman

2023

MRAJ

View full text Add to dashboard Cite

Introduction: The present review details the evolution of endoscopic ultrasound, the acquisition of subepithelial imaging of the gastrointestinal tract during endoscopy, in pediatrics. Similar to its use in adults, the majority of its present applications involve obtaining fluid and or tissue for diagnosis. Simultaneously, the indications for point of care ultrasound, in which physicians caring for a patient personally obtains images which can be incorporated immediately into diagnosis and management, are also expanding. A history of endoscopic ultrasound from its inception to its current utilization is presented. The data reflecting its successful current employment as the procedure of choice to analyze and drain pancreatic cysts, to diagnose biliary tract and pancreatic diseases, to direct subepithelial biopsies, and to evaluate gastrointestinal tumors as well as less common gastrointestinal pathologies, is summarized with an emphasis on pediatric studies. In addition, the recent expansion of point of care ultrasound and endoscopic ultrasound to yield images to analyze subepithelial pathology including fibrosis in eosinophilic esophagitis and in inflammatory bowel disease is highlighted. A brief summary of the challenges, range of instruments, costs, and safety provides the reader with the background to fully appreciate this emerging technique. Finally, there is an overview of exciting new developments that will further extend its indications. Conclusions: With anticipated improvements including better resolution of endoscopic ultrasound probes, the routine incorporation of point of care elastography and contrast enhanced ultrasound, and the potential of artificial intelligence to provide more reproducible and uniform analysis of endosonographic images, new indications are anticipated to enable endoscopic point of care ultrasound, E-POCUS, to further improve patient care in the near future

show abstract

Practical approach to linear endoscopic ultrasound examination of the rectum and anal canal

Cited by 4 publications

References 84 publications

Feasibility and clinical value of linear endoscopic ultrasonography in the lower gastrointestinal subepithelial lesions

Feasibility and clinical value of linear endoscopic ultrasonography in the lower gastrointestinal subepithelial lesions

Feasibility and clinical value of linear endoscopic ultrasonography imaging in the lower gastrointestinal subepithelial lesions

Endoscopic Point of Care Ultrasound: Foundations, Present Applications, Future Potentials

Contact Info

Product

Resources

About