Centre for Visceral Surgery

Visceral surgery comprises surgical interventions on the abdominal organs (oesophagus, stomach, small and large intestine, rectum and anal region including the haemorrhoids, liver, pancreas, spleen, liver, gall bladder and ducts, kidney, diaphragm) as well as treatment of inguinal and umbilical fractures. 

Treatment options

Our Centre for Visceral Surgery covers the following areas:

Colorectal surgery/proctology

  • All tumorous and inflammatory diseases
  • Malformations
  • Functional disorders (including post-hysterectomy)

Abdominal wall

  • All abdominal wall defects
  • Incisional hernias
  • General hernia surgery

Highly specialised medicine (HSM)

  • Upper gastrointestinal tract (without oesophagus)
  • Lower gastrointestinal tract (rectum)
  • Hepatobiliary/pancreas

Da Vinci® robotics

  • Colorectal surgery
  • Abdominal wall and hernia surgery

Our centres

Viszeralchirurgie Bethanien


Our Competence Centre for Visceral Surgery, headed by Dr Daniel Christen, covers the entire field of visceral surgery with a focus on colorectal surgery and the treatment of abdominal wall problems. The procedures are preferably carried out in a minimally invasive manner. In particular, the latest methods of robot assistance using the Da Vinci® system are used. 

Collaboration with University Hospital Zurich

We work closely with the Department of Visceral and Transplant Surgery at the University Hospital Zurich. We evaluate and treat selected cases in highly specialised medicine in cooperation with the appropriate specialist teams. Patients with general insurance are treated by us at the University Hospital Zurich.

Doctors at this centre

Privatklinik Bethanien

Dr. med. Daniel Christen

Visceral surgery, General surgery, Da Vinci
Privatklinik Bethanien

Dr. med. Pascal Jeanmonod

Visceral surgery, General surgery

Praxis Prof. Dr. Clavien

Welcome to the visceral surgery practice of Prof. Dr. Pierre-Alain Clavien at the Privatklinik Bethanien. Important focal points are benign and malignant diseases of the liver, gall bladder, bile ducts, pancreas and spleen with a focus on cancer treatments in the field of precision and robotic surgery. In his practice, Prof Clavien offers innovative and personalised treatments that take into account the latest research in the field. He will not only treat patients with supplementary insurance, but also accept patients with basic insurance who require complex procedures.

Doctor at this centre

Privatklinik Bethanien

Prof. Dr. med. Pierre-Alain Clavien

Hepatobiliary surgery (liver surgery), Pancreatic surgery, Biliary surgery, Surgical oncology, Visceral surgery View more


Interdigest (the Interdisciplinary Gastroenterological Surgical Team) is a network of medical experts in the fields of surgery, gastroenterology and oncology. Providing the best possible treatment for many diseases requires the collaboration of multiple specialists. Each specialist draws upon their own experience when it comes to both assessment and treatment. We also work closely with specialists from pathology, radiology and other fields. We share one common goal, which is to ensure that our patients receive comprehensive care. We must not lose sight of the patient, which is why they are at the very centre of the treatment we provide. This is the philosophy of Interdigest.  

More information about Interdigest

For referring GPs

Interdigest offers GPs the opportunity to quickly and easily contact a pool of experts. GPs know more about their patients as well as their patients’ lives and environment than anyone else. All of these factors contribute to patient-focused treatment. They are the key to establishing a treatment strategy based on individual solutions for each patient. It is for this reason that we actively involve GPs in assessment, treatment and follow-up care. The in-depth patient knowledge of our GP, combined with our specialist knowledge, lay the foundation for successful treatment. On request, referring doctors can participate in the tumour board. This is particularly desirable in polymorbid patients.

For patients

We ensure cooperation with your GP at all times. As a patient, you benefit from comprehensive assessment and treatment by our team of specialists. We regularly conduct our interdisciplinary tumour board and discuss the best treatment method for our patients. We also offer individual assessments and subsequent treatment by the doctor of choice. Most medical assessments are carried out on an outpatient basis and can be performed regardless of your insurance status. Inpatient treatment is provided for patients with supplementary insurance at Privatklinik Bethanien. In the case of patients with general insurance, inpatient treatment is carried out at a partner hospital in consultation with their GP.

Our team of experts for Da Vinci® robot procedures

The Da Vinci® Bethanien team is led by visceral surgeon Dr Daniel Christen, Medical Director and Chief Surgeon at Privatklinik Bethanien, and his colleagues from surgical urology, Dr Michael Kurz and Dr Guido Tenti, as well as from thoracic surgery, Dr Walter Weder. The four specialists in minimally invasive surgery have many years of experience with the Da Vinci® robot and are a well-coordinated team.

For more information

Specialist area of visceral surgery