Gastroscopy (Upper Endoscopy)

Procedure Overview

Gastroscopy (Upper Endoscopy) at Gangnam Heartscan Healthcare Center is a high-definition endoscopic examination that directly visualizes the mucosal lining of the esophagus, stomach, and duodenum. Performed by board-certified specialists using Olympus CV-290 high-definition video endoscopes, the procedure enables early detection of inflammation, ulcers, Helicobacter pylori-associated mucosal changes, and early gastric cancer, with optional conscious sedation for patient comfort.

Clinical Indications

• Routine preventive screening for early gastric and esophageal neoplasms
• Evaluation of upper abdominal pain, persistent indigestion, heartburn, acid reflux, or difficulty swallowing
• Diagnosis and follow-up of esophagitis, gastritis, peptic ulcer disease, and gastric polyps
• Targeted mucosal biopsy when abnormal tissue or suspected Helicobacter pylori infection is observed

How the Screening Works

1. Pre-Procedure Preparation: Administration of an oral defoaming solution and topical pharyngeal anesthesia; intravenous conscious sedation is administered if selected.
2. High-Definition Upper Endoscopy: A slender, flexible video endoscope is gently guided through the esophagus, stomach, and duodenum to inspect the mucosal surface in detail.
3. Biopsy & Recovery: If suspicious lesions are identified, a tissue biopsy can be taken during the exam, followed by rest in the recovery suite until sedation wears off.

Preparation & Precautions

• Fast completely from all food, water, and beverages for at least 8 hours prior to the examination (typically from the evening before a morning appointment).
• Inform the medical team in advance if you take anticoagulants or antiplatelet medications (such as aspirin, clopidogrel, or warfarin), as biopsy eligibility requires prior review.
• Patients who choose conscious sedation must not drive a vehicle or operate machinery for the remainder of the day.