Advances in Endoscopic Techniques for Early Detection of Gastrointestinal Cancers
Submission: 05 January 2026 | Acceptance: 20 February 2026 | Publication: 24 March 2026
1Omer Usman, 2Umar Ali, 3Dr Talha Qureshi, 4Muhammad Sadiq Achakzai, 5Khurram Ali, 6Marwa Riaz
1Resident physician, Department: internal medicine, Texas Tech University Health Sciences Center El Paso- Transmountain
2PIMS Islamabad
3Dr Ziaudduin hospital Sukkur
4Associate Professor, Gastroentrology, Bolon Medical College
5PIMS Islamabad
6UHS Lahore
ABSTRACT:
Background: Gastrointestinal (GI) cancers remain a leading cause of cancer-related mortality worldwide. Early detection significantly improves prognosis and survival rates. Advances in endoscopic techniques have enhanced the ability to diagnose GI cancers at an early stage, improving patient outcomes. Aim: This study aimed to evaluate the effectiveness of advanced endoscopic techniques in the early detection of gastrointestinal cancers.
Methods: A retrospective observational study was conducted at Fauji Foundation Hospital from October 2023 to September 2024. A total of 80 patients who underwent advanced endoscopic procedures, including narrow-band imaging (NBI), confocal laser endomicroscopy (CLE), and endoscopic ultrasound (EUS), were included. The diagnostic accuracy, sensitivity, and specificity of these techniques were analyzed and compared with conventional endoscopy.
Results: Advanced endoscopic techniques demonstrated higher sensitivity (94.3%) and specificity (91.8%) compared to conventional endoscopy (82.7% sensitivity, 79.2% specificity). Narrow-band imaging provided superior visualization of mucosal abnormalities, while confocal laser endomicroscopy improved real-time histopathological assessment. Endoscopic ultrasound accurately identified submucosal lesions. Early-stage GI cancers were detected in 63% of patients, leading to timely intervention and improved management strategies.
Conclusion: The incorporation of advanced endoscopic techniques significantly enhanced the early detection of gastrointestinal cancers. These methods demonstrated superior diagnostic accuracy and allowed for earlier interventions, ultimately improving patient prognosis. Wider implementation of these technologies is recommended to optimize early diagnosis and treatment outcomes.
Keywords: Gastrointestinal cancers, early detection, advanced endoscopy, narrow-band imaging, confocal laser endomicroscopy, endoscopic ultrasound.