José Miguel Esteban Lopez-jamar

Dr. José Miguel Esteban López-Jamar is a pioneer of endoscopic ultrasound (EUS) in Spain. He currently heads the Digestive Endoscopy and Digestive Diseases Units at Hospital Ruber Internacional. The doctor uses minimally invasive techniques for complex gastrointestinal diseases and early cancer detection. He has over 20 years of clinical practice experience.

Specialization & Approach

Dr. Esteban López-Jamar performs advanced diagnostic and interventional endoscopy. He uses specific techniques to treat Barrett’s esophagus and early neoplasia. The specialist also performs endoscopic treatments for obesity and inflammatory bowel disease. His approach integrates precision diagnostics with care for functional digestive disorders.

The doctor treats a variety of conditions, including:

• Crohn's disease and ulcerative colitis
• Pancreatitis and cholelithiasis — the formation of gallstones in the gallbladder
• Cirrhosis and autoimmune hepatitis
• Gastric ulcers and Barrett's esophagus
• Polyps of the gastrointestinal tract

He performs advanced procedures such as:

• Endoscopic ultrasound (EUS / ecoendoscopy) — a procedure combining endoscopy and ultrasound to create detailed images of the digestive tract
• Transoral Incisionless Fundoplication (TIF) — a non-surgical treatment for chronic acid reflux
• Stomach and small intestine resections
• Laparoscopic anti-reflux (GERD) surgery
• Gastric and duodenal polypectomy

Professional Experience

• 2007–Present — Head of Digestive Endoscopy and Digestive Diseases Units, Hospital Ruber Internacional, Madrid
• 2012–2014 — Head of Endoscopic Innovation Unit, Hospital Clínico San Carlos, Madrid
• 2008–2012 — Head of Endoscopy Unit, Hospital Clínico San Carlos, Madrid

The specialist completed international clinical training at various institutions. These include the Academic Medical Center in Amsterdam and Institut Paoli-Calmettes in Marseille. Additionally, he gained experience at Zhongshan Hospital, Fudan University, in Shanghai.

Education & Training

• PhD in Medicine and Surgery — Complutense University of Madrid
• MD in Medicine and Surgery — Complutense University of Madrid
• Specialist in Gastroenterology (Digestive System)

Research & Recognition

Dr. Esteban López-Jamar studies endoscopic therapies and diagnostic technologies. He participates in multicenter European studies and clinical trials. His research specifically targets Barrett’s esophagus and early cancer detection. Furthermore, he focuses on the management of pancreatic and biliary diseases.

Professional Memberships

• European Society of Gastrointestinal Endoscopy (ESGE)
• Spanish Society of Digestive Endoscopy (SEED)
• Spanish Society of Digestive Diseases (SEPD)