St. Luke's International Hospital Branch Clinic, St. Luke's MediLocus

Gastroenterology

Endoscopy, namely, direct visual examination of the gastrointestinal tract including the esophagus, stomach, small intestines and colon, etc., the bile duct system and the pancreas, for diagnostic and treatment purposes, is a field of medicine in which Japan is taking leadership in the world.
Here at St. Luke’s MediLocus, not only do we offer examinations related to the gastroenterology, we also offer physical examinations, medical checkups and screenings that use the latest equipment and techniques to help detect diseases at an early stage. We also conduct thorough examinations for patients referred to us from other facilities that find irregularities or areas of concern.

Endoscopy, namely, direct visual examination of the gastrointestinal tract including the esophagus, stomach, small intestines and colon, etc., the bile duct system and the pancreas, for diagnostic and treatment purposes, is a field of medicine in which Japan is taking leadership in the world.
Here at St. Luke’s MediLocus, not only do we offer examinations related to the gastroenterology, we also offer physical examinations, medical checkups and screenings that use the latest equipment and techniques to help detect diseases at an early stage. We also conduct thorough examinations for patients referred to us from other facilities that find irregularities or areas of concern.

Medical Examination Schedule

MON TUE WED THU FRI SAT
AM Okada (The 1st・3rd・5th week Only AM) Okada
PM Yamana(Every week)

Staff Introduction

Ruriko Okada

Message

My specialty is to perform endoscopic examinations (gastroscopy/colonoscopy) while I also see patients for outpatient consultations.
To make sure that you have peace of mind about the medical care you receive, you will always actively participate in all decisions concerning the tests and treatments you need to undergo. Please feel free to discuss any worrisome symptoms you have with us.

Tetsuo Yamana

Message

My name is Tetsuo Yamana and I am a board-certified colorectal surgeon. I have a long history working with St. Luke’s patients that began with my residency. My area of expertise is diseases of the colon and rectum. At this institution, I currently treat outpatients, especially those with hemorrhoids, fissures, fistulas, and constipation, but I also have a good deal of experience with fecal incontinence, as I supervised a clinical trial for a specific treatment. I have been researching international procedures for years. I continue to study the latest practices in Asia, the U.S. and Europe. I will work hard to provide you with the most up-to-date, globally standardized care.

Main diseases/disorders treated

  • Heartburn, esophagus symptoms like difficulty swallowing (dysphagia), esophagitis due to gastroesophageal reflux (GERD), esophageal tumors, esophageal achalasia, etc.
  • Abdominal pain, conditions causing abdominal discomfort, gastritis (including H. pylori gastritis), gastric/duodenal ulcers, functional gastrointestinal disorders, gall stones (cholelithiasis), pancreatitis, etc.
  • Bowel disorders (diarrhea, constipation), a feeling of abdominal fullness, irritable bowel syndrome, ulcerative colitis, Crohn’s disease, etc.
  • Bloody stools, colon cancer, inflammatory bowel disease, etc.
  • Loss of appetite (anorexia), weight loss, hepatitis, liver tumors, pancreatitis, pancreatic tumors, etc.
  • Other conditions we handle include anemia, liver function impairment and occult fecal blood discovered during a health checkup, etc.
  • Anal disease
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