Academic Hospital Cologne-Merheim

location_on Cologne, Germany
8.9/10 from 23 Votes

Department of Gastroenterology (274434)

Arno Dormann

Prof. Dr. med.

Arno Dormann

Specialized in: gastroenterology

About the Department of Gastroenterology at Academic Hospital Cologne-Merheim

The Department of Gastroenterology at the Academic Hospital Cologne-Merheim offers the full range of diagnostic and therapeutic services for the patients with disorders of the digestive system (esophagus, stomach, liver, gallbladder, pancreas and bowel), including functional gastrointestinal disorders. Of particular interest to the medical team of the department is the treatment of cancers, particularly bowel cancer, within the specialized center in the department. The department also includes the Endoscopy Unit, which performs diagnostic and therapeutic endoscopic procedures.

According to the Focus magazine, the department is headed by Prof. Dr. med. Arno Dormann. The doctor has repeatedly been ranked among the top German doctors specializing in the treatment of gastrointestinal diseases.

An interdisciplinary approach is applied in the treatment of gastroenterological cancers. In addition to gastroenterologists, the specialists in related disciplines are involved in the therapeutic process, including oncologists, surgeons, radiation therapists, chemotherapists, psychologists, etc. The treatment regimen is developed individually for each patient, taking into account a specific clinical case. Of particular note is the certified Bowel Cancer Center, which is part of the Cancer Center of the hospital. The department's specialists provide patients with the comprehensive medical care, ranging from primary diagnostics, surgical and adjuvant treatment to postoperative care and rehabilitation. If possible, sparing minimally invasive techniques are used in clinical practice. The surgical treatment is complemented by adjuvant, pain therapy and proper diet. In 2008, the Bowel Cancer Center was the first in the regions of Cologne and Bonn, which confirmed the high quality of medical services by certification from the German Cancer Society. The Center annually passes special inspections to confirm certification annually.

The endoscopic procedures are an integral part of the department's work. The Section of Endoscopy offers the wide range of diagnostic and therapeutic interventions. Many endoscopic procedures are performed on an outpatient basis, however, the high-risk patients often require hospitalization. The doctors of the section have extensive experience in the treatment of such patients. They also provide them with maximum safety during endoscopic diagnostics or treatment. Particular attention is paid to the implantation of stents for stenoses and thromboses (in most cases, self-expanding metal stents are used), the placement of nutritional probes (PEG, Jet-PEG, EPJ, Easy In) and endoscopic palliation.

The department specializes in the diagnostics and treatment of the following diseases:

  • Esophageal diseases
  • Stomach diseases
  • Liver diseases
  • Pancreatic diseases
  • Gallbladder and biliary tract diseases
  • Bowel diseases, including bowel cancer (diagnostics and treatment within the specialized center)
  • Functional disorders of the digestive tract
  • Gastrointestinal malignancies
  • Gastroesophageal reflux disease (treatment within the specialized center)
  • Other gastroenterological diseases

The range of endoscopic diagnostic and therapeutic procedures of the department includes:

  • Diagnostics and treatment of esophageal, stomach and duodenal diseases
    • High-resolution video endoscopy (esophagogastroduodenoscopy)
    • Transnasal gastroscopy
    • Magnification endoscopy (Zoom endoscopy)
    • Chromoendoscopy
    • Endoscopic gastrointestinal ultrasound scanning (endosonography) using various sensors, as well as ultrasound-guided fine-needle aspiration biopsy
    • Treatment of cardiac achalasia by means of balloon dilatation and botulinum toxin injection
    • Polypectomy (polyp removal)
    • Endoscopic mucosal resection and argon plasma coagulation for Barrett's esophagus, precancerous conditions and tumors at the initial stages
    • Bougienage, balloon dilatation and stent implantation for stenoses
    • Treatment of esophageal varices by means of ligation or injection of special glue
    • Treatment of haemorrhages (clipping, injection therapy and argon plasma coagulation)
    • Argon plasma coagulation for vascular abnormalities (angiodysplasia)
    • Removal of foreign bodies
    • Esophageal manometry
    • Telemetric pH-metry within 48 hours (Bravo system)
  • Diagnostics and treatment of duodenal, jejunal and ileal diseases
    • Video capsule endoscopy for non-invasive diagnostics of the state of the small intestine
    • Balloon endoscopy
    • Polypectomy (polyp removal)
    • Endoscopic resection of the mucous membrane and argon plasma coagulation in precancerous conditions and tumors at the initial stages
    • Bougienage, balloon dilatation and stent implantation for stenoses
    • Argon plasma coagulation in the case of vascular abnormalities (angiodysplasia)
  • Diagnostics and treatment of colon and rectal diseases 
    • Ileocolonoscopy
    • Proctoscopy/rectoscopy/sigmoidoscopy
    • Chromoendoscopy
    • Video capsule endoscopy for non-invasive colon diagnostics
    • Endoscopic intestinal ultrasound scanning (rectal endosonography)
    • Endoscopic removal of polyps (polypectomy)
    • Removal of large flat adenomas using endoscopic mucosal resection
    • Bowel dilatation and dilatation for Crohn's disease, postoperative stenosis
    • Decompression using probes
    • Installation of metal stents for the elimination of stenoses caused by tumors
    • Argon plasma coagulation in the case of vascular abnormalities (angiodysplasia)
    • Treatment of hemorrhoids using latex ligation or sclerotherapy
  • Diagnostics and treatment of biliary tract diseases
    • Endoscopic retrograde cholangiopancreatography (also with sphincterotomy)
    • Removal of stones from the bile ducts (in particular, using mechanical lithotripsy or nasobiliary probes to wash bile ducts)
    • Treatment of stenoses and bile duct leak after surgery
    • Bougienage, dilation and stent implantation (using plastic or metal stents) for inflammatory processes and stenoses caused by malignancies
    • Contrast-enhanced percutaneous transhepatic cholangiography and percutaneous transhepatic cholangiography
    • Removal of tumors in gallbladder opening
  • Diagnostics and treatment of pancreatic diseases
    • Endoscopic retrograde pancreatography (also with sphincterotomy) for functional disorders
    • Stent implantation for stenoses of the excretory ducts of the pancreas (particularly, in chronic pancreatitis)
    • Endoscopic pancreatic ultrasound scanning (endosonography), ultrasound-guided fine-needle aspiration puncture biopsy
    • Ultrasound-guided drainage for pseudocysts or abscesses caused by acute or chronic pancreatitis
  • Diagnostics and treatment of diseases of other digestive organs
    • Percutaneous endoscopic gastrostomy and percutaneous endoscopic jejunostomy
    • Placement of nasogastric tube (Easy In)
    • Ultrasound of abdominal organs, retroperitoneal space and thorax, blood vessels, as well as thyroid gland and soft tissues of the neck
    • Dopplerography and color duplex sonography of the abdominal vessels 
    • Puncture for pleural effusion and ascites
    • Ultrasound-guided abscess drainage
  • Functional and imaging diagnostics of the digestive organs
    • Hydrogen breath test using sorbitol, xylitol, lactose, fructose, glucose and lactulose for the diagnostics of fructose and lactose intolerances, etc.
    • 48-hour telemetric pH-metry (BRAVO system) for the diagnostics of gastroesophageal reflux disease and monitoring of proton pump inhibitor therapy
    • Esophagus manometry for esophageal dyskinesia
    • Esophageal scintigraphy and imaging of gastric emptying for the diagnostics of impaired esophageal motor function and intestinal motility disorders
    • X-ray of the esophagus and other digestive organs for the diagnostics of functional disorders
    • Defecography for the diagnostics of bowel movements
    • Magnetic resonance imaging for imaging of the bile ducts and pancreatic ducts
    • Magnetic resonance enteroclysis for morphologic assessment of the small intestine
  • Other diagnostic and therapeutic services

Curriculum vitae of Prof. Dr. med. Arno Dormann

Education and Professional Career

  • 1982 - 1983 Study of Biology at the Philipps-University Marburg.
  • 1984 - 1990 Study of Human Medicine, Berlin.
  • Internships in London (UK), Rochester, New Orleans (USA), Basel (Switzerland).
  • Professional training in Gastroenterology, Department of Internal Medicine (focus on infectious diseases), Charite University Hospital Berlin, Campus Virchow.
  • Professional training in Gastroenterology, Department of Internal Medicine, Minden Hospital (University Hospital Muenster).
  • Doctoral thesis defense, Charite University Hospital Berlin, Campus Benjamin Franklin. Subject: "Color duplex sonography for the assessment of the state of deep veins in the lower limbs in the case of varicose veins and its role in the diagnostics of deep vein thrombosis of the lower limbs as compared to phlebography".
  • Habilitation, Faculty of Medicine, Otto von Guericke University Magdeburg, Department of Gastroenterology, Hepatology and Infectology.
  • 1998 - 2000 Senior Physician, Department of Internal Medicine and Gastroenterology, Minden Hospital (University Hospital Muenster).
  • 2000 - 2005 Leading Senior Physician, Department of Internal Medicine and Gastroenterology, Minden Hospital (University Hospital Muenster).
  • Since 2005 Head of the Department of Gastroenterology at the Academic Hospital Cologne-Merheim.

Postgraduate Training

  • 1998 - 1999 Hospital Management, Hanover.

Additional Qualifications

  • 2000 Dietetics (DAEM/DGEM).
  • 2003 Infectology (DGI).
  • 2004 Gastrointestinal Oncology (DGVS).

Memberships in Professional Societies

  • German Society for Endoscopy and Imaging Procedures (DGE-BV).
  • German Society for Gastroenterology, Digestive and Metabolic Diseases (DGVS).
  • Society for Gastroenterology in North Rhine-Westphalia.
  • Professional Association of German Therapists (BDI).
  • German Society of Infectious Diseases (DGI).
  • German Nutrition Society (DEGEM).
  • European Society for Clinical Nutrition and Metabolism (ESPEN).
  • Association of Leading Physicians of German Clinics (VLK).
  • Working Group of Leading Gastroenterologists.

Photo of the doctor: (c) Kliniken der Stadt Köln gGmbH 

Department of Gastroenterology.
Academic Hospital Cologne-Merheim:

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