Hanhui Ryu
Dr. Hanhui Ryu is a Director and board-certified Internal Medicine Specialist & Gastrointestinal Endoscopy Subspecialist at Gangnam Heartscan Healthcare Center, graduate of Seoul National University College of Medicine, former Internal Medicine Resident at Seoul National University Hospital, and former Clinical Instructor in Gastroenterology at Asan Medical Center.
Gangnam Heartscan Healthcare Center · Specialist Physician Profile · Gangnam-gu, Seoul
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Clinical Role & Specialty
- Position: Director, Gangnam Heartscan Healthcare Center
- Specialty: Internal Medicine Specialist & Gastrointestinal Endoscopy Subspecialist (M.D.)
- Clinical Department: Performs high-definition gastroscopy, colonoscopy, polypectomy, and digestive disease screening within Digestive Health Screening & Gastroenterology.
Education & Professional Background
- M.D., Seoul National University College of Medicine
- Internship, Seoul National University Hospital (SNUH)
- Resident in Internal Medicine, Seoul National University Hospital
- Former Clinical Instructor, Division of Gastroenterology, Asan Medical Center
- Board-Certified Specialist in Internal Medicine
- Board-Certified Subspecialist in Gastrointestinal Endoscopy
- Regular Member, Korean Association of Internal Medicine
- Regular Member, Korean Society of Gastrointestinal Endoscopy (KSGE)
Clinical Practice & Examination Summary Table
| Parameter / Examination | Clinical Purpose | Preparation / Protocol |
|---|---|---|
| High-Definition Gastroscopy | Evaluates esophageal, gastric, and duodenal mucosa for reflux, ulcers, and early lesions | Fasting from food and water for at least 8 hours prior to procedure |
| Colonoscopy & Polypectomy | Full colonic mucosal inspection with targeted biopsy and removal of adenomatous polyps | 3-day low-residue diet and split-dose bowel cleansing preparation |
| Reflux & Dyspepsia Evaluation | Structured diagnostic workup for GERD, H. pylori gastritis, and chronic indigestion | Pre-procedure review of anticoagulant or antiplatelet medications |
Areas of Clinical Focus
- Gastroscopy (Upper Endoscopy) and Colonoscopy
- Endoscopic Diagnosis & Treatment including biopsy and polypectomy
- Reflux Esophagitis (GERD) Treatment and Indigestion Evaluation
- Personalized digestive screening consultations via our Consultation & Inquiry Desk
Frequently Asked Questions
What is Dr. Hanhui Ryu's academic and clinical background in Gastroenterology?
Dr. Hanhui Ryu graduated from Seoul National University College of Medicine, completed her internship and Internal Medicine residency at Seoul National University Hospital (SNUH), and served as a Clinical Instructor in Gastroenterology at Asan Medical Center, holding board certification as a Gastrointestinal Endoscopy Subspecialist.
Why is same-session polypectomy important during screening colonoscopy?
Removing adenomatous polyps detected during colonoscopy prevents their potential progression into colorectal cancer and reduces the need for a repeat bowel preparation and second procedure.
1:1 Specialist Consultation & Multidisciplinary Screening Standard
All diagnostic screenings, imaging protocols, and sedated endoscopy examinations at Gangnam Heartscan Healthcare Center (B1, Dongil Tower, 38 Teheran-ro 114-gil, Gangnam-gu, Seoul; Samseong Station Exit 2) are performed and interpreted by our 16 board-certified specialists led by Chief Medical Director Dr. Seonghak Park, MD, PhD. Preparation requirements (such as 8–12 hour fasting, contrast media precautions, or post-sedation driving restrictions) vary by clinical condition and medication history.
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