Special Clinical Focus

  • Treatment of acute liver diseases
  • Treatment of chronic liver diseases
  • Treatment for staging of liver and tumour diseases by gastrointestinal mini- and midilaparoscopies
  • Liver replacement techniques for tumours (HCC, CCC)
  • Liver transplantation
  • Endoscopy of the gastrointestinal tract

About us

Prof. Guido Gerken is a specialist in gastroenterology in Essen. Here, the gastroenterology specialist is the Medical Director of the Department of Gastroenterology and Hepatology at the University Hospital, Essen. At the same time, along with the treatment of acute liver diseases and chronic liver diseases, the special treatment emphases of Prof. Gerken in Essen also include liver transplantations. As well, the specialist in gastroenterology also performs liver replacement procedures for tumours, endoscopies of the gastrointestinal tract and minilaparoscopies and midilaparoscopies (keyhole technique).

Using these techniques, the specialist in gastroenterology, Prof. Gerken, is able to treat particular conditions such as liver diseases or chronic inflammatory bowel diseases, for example, as well as gastrointestinal tumours (HCC, CCC), liver cancer, biliary tract conditions and ulcerative colitis.

As a maximum care gastroenterology centre, the clinic of the specialist in gastroenterology covers the entire spectrum of gastroenterology and hepatology. All diagnostic, endoscopic, interventional endoscopic and sonographic (ultrasound) techniques are utilised in the Endoscopy Department of the University Hospital, Essen and approximately 10,000 examinations are performed annually. In addition to a general gastroenterology clinic, the Department’s Out-patients’ Clinic under the gastroenterology specialist, Prof. Gerken, also holds specialist clinics for liver and biliary tract diseases, chronic inflammatory bowel diseases, functional gastrointestinal conditions, diseases of the pancreas and gastroenterological tumours, particularly hepatocellular carcinoma. A large proportion of the patients of the specialist in gastroenterology is referred by hospitals or private medical practitioners from outside the Essen metropolitan area. Increasingly, in recent times, this includes patients with advanced liver diseases, including acute and chronic liver failure, for further clarification with regard to a liver transplant.

Diagnostic Services

Oesophago-gastro duodenoscopy

  • Sclerotherapy and banding of esophageal and fundal varices
  • Stent implants
  • Dilatation or balloon dilatation of stenoses
  • PEG probes


H2 breath test
Lactose intolerance test
Small intestine

  • Capsule endoscopy
  • Balloon enteroscopy



  • Rectoscopy
  • Coloscopy
  • Sclerotherapy/polypectomy
  • Dilatation/balloon dilatation
  • Enema of the colon
  • Biopsy
  • Virtual coloscopy (MRI)
  • ERCP
  • Endoscopic papillotomy with stone extraction


Abdomen as a whole

  • Ultrasound/colored doppler/fibroscan
  • Endosonography (EUS)
  • CT + MRI of abdomen


Laparoscopy (minilap.)
Pediatric endoscopy (in co-operation with the Pediatric Clinic)

  • Endoscopy of the esophagus and gastroscopy with removal of foreign objects
  • High colonoscopy
  • Removal of polyps in the upper and lower gastrointestinal tract
  • Hemostasis in the upper and lower gastrointestinal tract


Conservative proctology
Palliative local tumor therapy liver (Yttrium therapy)
RF induced thermo therapy (RFA)

  • TACE

Therapeutic Services

The entire range of the gastroenterological hepatological diagnosis comprises for instance:

  • Endoscopy department, all approved and numerous experimental methods (including facility for TIPSS, and emergency intervention)
  • High-end ultrasound (including contrast medium imaging and transient elastography, FibroScan)
  • Mini and midi laparoscopies for staging of liver and tumor diseases
  • Liver transplant methods (e.g. PROMETHEUS)
  • Nutrition counseling

Special Offers / Arrangements / Rooms

From mid 2010, relocation into the new building of the Center for Conservative Medicine (ZKM).

Leading Medicine Guide

Selected expert in the specialist field Gastroenterology

Other services

  • Liver diseases
  • Chronic inflammatory bowel diseases
  • Gastrointestinal tumours (HCC, CCC)
  • Biliary tract diseases
  • Liver cancer
  • Ulcerative colitis


Airports near

  • Airport Düsseldorf27 klinimeters - approx. 25 minutes
  • Airport Essen-Mülheim7 kilometers - approx. 15 minutes

Additional staff

Prof. Dr. med.
Christian Lange

Senior Consultant in Charge of Hepatology/ Gastrointestinal Intensive Care

Priv.-Doz. Dr. med.
Henrike Lenzen

Oberärztin Endoskopie

Priv.-Doz. Dr. med.
Alisan Kahraman

Oberarzt Ambulanz, Infektionsstation

Priv.-Doz. Dr. med.
Katja Deterding

Oberärztin Abdomen-Sonographie, Bereich Klinische Studien

Prof. Dr. med.
Kerstin Herzer

Oberärztin Interdisziplinäre Station AC2, Leitung LTX-Nachsorge

Priv.-Doz. Dr. med.
Julia Kälsch