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Prof. Dr. Diez-Caballero Alonso Alberto image

Department of general, abdominal, liver and bariatric surgery

Prof. Dr. Diez-Caballero Alonso Alberto
general surgery, abdominal, liver and bariatric surgery

About the department

The general, abdominal, liver and bariatric surgery department at Teknon Medical Center Barcelona deals with the surgical treatment of internal organs with a particular focus on liver pathology and obesity. The diagnosis and treatment of liver diseases have made significant progress in recent years due to new surgical techniques and new anticancer drugs. The department's surgeons are increasingly adopting laparoscopic surgery, which provides the same benefits of a minimally invasive approach, such as less post-operative pain, shorter hospital stays, and a marked reduction in scar size. With the help of this technique, surgeons provide operations on the large intestine and treatment of acute appendicitis and morbid obesity. In addition, the department's specialized teams have performed over 1,000 surgical interventions for type 2 diabetes and obesity with exceptional results.

The main focus of doctors' work is the treatment of morbid obesity. The medical team comprehensively develops a hypocaloric plan suitable for each patient and an individual physical activity program. Bariatric surgery aims to prevent obesity-related morbidity and mortality, reduce comorbidities, and improve quality of life. The patient does not have to reach his ideal weight to achieve these goals.

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Treatment and diagnostic focus of the department


  • Аutoimmune hepatitis
  • Cholelithiasis
  • Cirrhosis of the liver
  • Liver cancer
  • Nonalcoholic fatty liver disease
  • Type 2 diabetes
  • Morbid obesity
  • Metabolic syndrome
  • Appendicitis
  • Diverticular disease 
  • Other pathological conditions 


  • Anamnesis 
  • Physical examination (body mass index) 
  • Laboratory and diagnostic analysis 
  • Lipid profile 
  • Ultrasound examination 
  • Digital X-ray 
  • Computed tomography 
  • Magnetic resonance imaging 
  • Gastroscopy, colonoscopy, rectoscopy 
  • Diagnostic laparoscopy 
  • Diagnostic sonography (uses sound waves to produce images of organs)
  • Liver elastography (imaging test that checks the liver for fibrosis)


  • Вrug therapy
  • Laparoscopic surgery
  • Gastroplasty with an adjustable bandage
  • Tubular gastrectomy
  • Sleeve gastrectomy
  • Gastric bypass
  • Portal embolisation
  • Hepatectomy in two stages
  • Radiofrequency (RF) therapy
  • Appendectomy
  • Surgery of the small and large intestine
  • Other medical procedures
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Doctor profile


  • 1990 Degree in Medicine and Surgery at the University of the Basque Country
  • 1994 Training in the Transplant Service, Department of General Surgery, University of Michigan Medical Center


  • 2003 Specialist in General and Digestive Surgery at the University Hospital of Navarra
  • Chef surgeon at the department of general, abdominal, liver and bariatric surgery at Teknon Medical Centre
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