What is Endoscopy and Who Performs It?
Endoscopy is a visual inspection of body cavities using an endoscope—a flexible instrument inserted directly into organs—and is performed by multiple specialists including gastroenterologists, surgeons, radiologists, nurses, and physician associates, all trained through standardized certification programs 1, 2.
Definition and Technical Requirements
Endoscopy involves direct visualization of internal body structures through specialized instruments. For upper gastrointestinal (UGI) endoscopy specifically, procedures must be performed using high-definition video endoscopy systems with capabilities for image capture and tissue biopsy 3. The examination systematically assesses anatomical landmarks from the upper esophageal sphincter through the second part of the duodenum, including the fundus (inspected via J-maneuver), gastroesophageal junction, gastric body, and duodenum 3.
Who Performs Endoscopy
Multiple Specialties with Common Training Standards
Endoscopy is performed by several clinical professionals 1, 4:
- Gastroenterologists (medical specialists)
- Surgeons (general and upper GI surgeons)
- Radiologists
- Nurses (specialized endoscopy nurses)
- Physician associates
All endoscopists undergo identical training programs and are monitored by the same regulatory body, regardless of their professional background 1. This standardization is critical—different standards should not apply to different professional groups, as this would undermine training quality and patient confidence 1.
Training and Competency Requirements
For UGI endoscopy specifically, the British guidelines establish clear benchmarks 3:
- Minimum 200 diagnostic procedures required before summative assessment
- Training through JAG (Joint Advisory Group) registration and certification
- Assessment using structured objective tools
- Minimum 100 procedures annually to maintain proficiency and high-quality examination standards
The rationale for ongoing volume requirements relates to "skills decay"—breaks in performing complex tasks result in deteriorating competency, with the rate depending on task complexity and previous skill level 3.
Historical Context and Current Practice
While flexible endoscopy is often assumed to be exclusively within gastroenterology's domain, surgeons have been pioneers and continue as active practitioners, significantly advancing minimally invasive techniques 4. The involvement varies by country, but endoscopy remains fundamental to surgical training and practice 4.
Performance Differences Between Specialties
Recent data shows measurable differences in performance indicators between surgeons and gastroenterologists, though both exceed national standards 5. Gastroenterologists typically perform colonoscopies for bowel symptoms, polyp surveillance, and positive fecal occult blood tests, while surgeons focus on diverticulitis surveillance, post-cancer resections, and abnormal imaging 5.
Common Pitfall to Avoid
Do not assume that only gastroenterologists should perform endoscopy or that different quality standards apply to different specialties. All endoscopists must meet identical training requirements and quality benchmarks 1. Efforts to restrict access based on specialty are unjustified and deprive patients of qualified practitioners 4.