Eschweiler Obesity Centre (North Rhine-Westphalia): Chief Physician Dr Mario Dellanna

Dr. Mario Dellanna
Chief Physician
Specialist in Bariatric Surgery
Eschweiler, Germany

St Antonius-Hospital Eschweiler Obesity Centre  - Logo

Treatment Focus

  • Excess weight (obesity)
  • Gastric bypass
  • Gastric band
  • Gastric tube
  • Restoration operations (body tightening)

Medical Range

Range of Diagnostic Services

  • CT device with enlarged opening and reinforced patient table


Range of Therapeutic Services

  • Gastric bypass: reducing the size of the stomach for reduced food consumption
  • Gastric band surgery: reduction of daily food intake by fixing an adjustable silicone band around the upper part of the stomach (pouch)
  • Gastric tube surgery: removal of a large part of the stomach so that a small, tube-shaped residual stomach is left
  • Restorative plastic surgery (body tightening): individual surgical technique with cosmetically advantageous scar placement
  • Movement therapy: the offer of regular movement groups for obese people in collaboration with the Centre for Health and Sport with the aim of strengthening the muscles and improving endurance and balance
  • Support group: the Obesity Centre provides support through specialist articles and informative events on the topic of obesity

About Dr. Mario Dellanna

Dr Mario Dellanna is an expert in bariatric surgery and a surgical specialist. He also masters special visceral surgery and proctology and is Chief Physician of the Eschweiler Obesity Centre near Aachen. Throughout the course of his medical career, he has performed important pioneering work in the field of surgical therapy of obesity. Dr Dellanna is popular with his patients due to his calm and prudence nature as well as his warm-hearted manner.

Certified Obesity Centre in North Rhine-Westphalia

The Eschweiler Obesity Centre in North Rhine-Westphalia was successfully certified in 2017 by the German Society for General and Visceral Surgery (DGAV) as a centre of excellence for obesity and metabolic surgery. A broad-based, cross-linked treatment concept, individual therapy options, plus continuous follow-up care all ensure patients receiving quality medical nurture at the highest level. Both, the Obesity Clinic's nursing wards as well as the staff’s examination and surgical techniques are geared to the specific needs of heavyweight patients. In addition, the hospital is equipped in line with latest technical standards.

Professional Help for People with Severe Excess Weight

Dr Dellanna and his team advise patients on all issues related to obesity in order to help them losing as much weight as possible. From a body mass index (BMI) of 30, patients are considered obese. Obesity is much more than just a cosmetic problem: It is recognised as a complex disease and poses a serious health threat to people.

The most common consequential and concomitant symptoms include type II diabetes, heart disease, cancer, high blood pressure, as well as back and joint pain. For people whose weight is 50 percent above average, the risk of premature death is twice as high as for people of normal weight.

In addition, those affected often suffer from social, psychological, and economic consequences due to their obesity. They feel socially excluded, disadvantaged in their careers, and suffer from depression and severe physical restrictions. Patients with obesity have often endured a long suffering journey on their own without possibility for escape. The specialists at the Obesity Centre accompany their patients with great expertise, patience and devotion.

Cross-Linked Therapy for Permanent Weight Loss

The Eschweiler (North Rhine-Westphalia) Obesity Centre’s mission is to accompany severely overweight people along their path to a leaner and more active life. Because obesity is a complex disease, a joint team of therapists from a variety of medical disciplines was established. This group of professionals works together towards the success of obesity therapies. The team includes doctors and therapists from the fields of nutrition medicine and counselling, physiotherapy, internal medicine, surgery, behavioural therapy, and plastic surgery.

The initial dialogue takes place as part of a specially arranged obesity consultation. During this session, individual therapies are defined with patients as a group. Set goals are accomplished on an outpatient basis. The specialists at the Eschweiler Obesity Centre are also happy to provide a second opinion if patients are have decided to undergo a therapy or operation.

If a surgical procedure is necessary, Dr Dellanna and his team of doctors also attend to their patients after the incision is executed. Aftercare with annual check-ups - even years following a surgical measure - is particularly important to them. The Eschweiler Obesity Centre additionally offers workout classes for obese people. Furthermore, it supports various self-help groups and organises regular doctor-patient seminars.

Modern Surgery at the Eschweiler Obesity Centre in North Rhine- Westphalia

Obesity surgery is often the best treatment method to control the condition, especially if previous measures have turned out unsuccessful. If all diets fail, bariatric surgery can reduce excess weight by 60 to 80 percent within 1 to 2 years. The goal is to maintain the achieved weight loss permanently without the infamous yo-yo effect.

At the Eschweiler Obesity Centre, all common interventions, including secondary procedures, are performed minimally invasively and patient-friendly with the so-called "keyhole technique”. This approach guarantees rapid wound healing enabling rapid mobilisation. The many years of experience of the surgeons and the entire team promise a high success rate and a low complication ratio. For the Obesity Clinic in North Rhine-Westphalia, these facts have been proven true by independent quality studies.

Gastric Bypass: Faster Satiety Sensation and Accelerated Digestion

A gastric bypass removes parts of the stomach, thus reducing the volume of food to be consumed. In addition, the upper portion of the small intestine is diverted so the food path through the gut is shortened and therefore, only a portion of the edible intake is absorbed and utilised.

Gastric Band to Limit Food Intake

Gastric banding surgery serves to reduce daily food consumption. For this purpose, a size-adjustable silicone band is placed around the upper part of the stomach. This creates a pouch at the stomach’s top by filling up first during food ingestion and therefore, causing a very rapid feeling of satiety. Gastric bands are often used in young and motivated patients as they can be more easily removed and thus the effect easily reversed.

Gastric Tubing (Sleeve Gastrectomy) / Gastric Tube

During a gastric tube operation, about ninety percent of the stomach is removed, leaving only a small tube-shaped residual stomach behind. This procedure also reduces the production of gastric acid and therefore, decreases the production level of the "appetite-stimulating" ghrelin hormone. Sleeve gastrectomy or gastric tubing is one of the most frequently performed obesity surgeries in Germany.

Wide Range of Surgical Services

The Clinic for General, Abdominal, Minimally Invasive Surgery, Proctology and Bariatric Surgery, under the direction of Dr Dellanna, offers a versatile range of surgical services. Medical treatment procedures within the scope of general and visceral surgery include therapy for benign or malignant tumours, metastases and other diseases of the entire digestive tract - pancreas, gallbladder, thyroid and parathyroid glands, abdominal wall and inguinal hernias, as well as rectal diseases.

Thoracic surgery focuses on following actions: benign and malignant lung tumour therapy, monitor-assisted diagnosis of unclear processes in the chest, diseases of the pleura, treatment of pulmonary collapse, and implantation of pacemaker systems or media for venous administration of drugs. Competent surgeons also administer surgical emergencies around the clock.

Click here to visit the website of the Eschweiler Obesity Centre.


Curriculum Vitae

1987 - 1994 Medical Studies:
Faculty of Medicine, University of Cologne;
Texas Medical Center, Houston, USA
1995 - 2003 Assistant Physician and Senior Physician in charge of a unit at Marien-Hospital Düsseldorf, Prof. Dr W. Stock, Department of General, Abdominal, Vascular and Trauma Surgery
2003 Senior Physician at Kassel Clinic of General, Visceral and Thoracic Surgery, Prof. Dr J. Fass/Prof. Dr H.-G. Koebe
2003 - 2006 Head Senior Physician for General, Abdominal and Thoracic Surgery, Centre for Minimally Invasive Surgery, Lower Rhine Obesity Centre, Bethesda Protestant Hospital Centre of Excellence  in Mönchengladbach, Prof. Dr S. Langer
2006 - 2014 Chief Physician of the Department of General and Abdominal Surgery, Centre for Minimally Invasive Surgery, Ratingen Obesity Centre, Centre of Excellence for Coloproctology, St. Marien Hospital Ratingen GmbH
Since 2014 Department of General, Abdominal and Thoracic Surgery, Specialist Coloproctology Unit, Eschweiler Obesity Centre, StAntonius Hospital, Eschweiler


06/2000 Specialist in Surgery at the Marien-Hospital Düsseldorf, Prof. Dr W. Stock
11/2000 Doctorate – Experimental Study of Comparative Diagnostics of Acute Leukemia, Department of Internal Medicine, University of Cologne, Prof. Dr V. Diehl
01/2003 Qualification in the specialisation visceral surgery
01/2004 Appointment as an examiner of the state examination office for medicine, examination of the third state examination in accordance with the ordinance on medical licensing, subject: surgery
2005/2006 Health Management – Certified, in-service training at the mibeg Institute, Cologne

Medical Team

  • Dr Nick Butz
    Head Senior Physician – permanent representative of the Chief Physician
  • Hanka Seidel
    Senior Physician


Eschweiler Central Railway Station 1.5 km
Maastricht-Aachen Airport (NL) 50 km
Mönchengladbach Airport 50 km
Liège Airport (B) 70 km
Cologne/Bonn Airport 70 km
Düsseldorf Airport 80 km

Information About Eschweiler

Specialist doctors and medical centres in Eschweiler

Benefits Programme on Site

Lufthansa Mobility Partner

PRIMO MEDICO is an accredited partner of Lufthansa Health & Medical. Benefit as a member or user of PRIMO MEDICO from special terms that provide you and your travelling companion with discounts on a variety of fares offered by Lufthansa, SWISS, Austrian and Brussels Airlines.


Casino Wiesbaden

Experience magical moments: With the highest visitor numbers and payout rates, the Wiesbaden Casino is number one at the Rhine-Main region. So you should definitely plan a trip to one of the most beautiful casinos in Europe. Enjoy the stylish ambience and the thrills. Wheather a classic game or Vegas flair at the slot machines. You can look forward to an unforgettable evening.


Agent CS

Agent CS creates space so that you can concentrate on your most important tasks - an innovative service agency which uses existing networks in a wide variety of areas to provide you with a solution customised for you.


Professional Aviation Solutions

Professional Aviation Solutions is a young, motivated team of experienced aircraft charter experts, which collaborates with only the most reputable airlines.



Dr. Mario Dellanna
Chief Physician

St Antonius-Hospital
Eschweiler Obesity Centre
Dechant-Deckers-Straße 8, D-52249 Eschweiler

T: +49 2403 76 1208
F: +49 2403 76 1249


Tuesdays and Thursdays 1pm – 3.30pm
 and by appointment

OUR GUIDELINES Our guidelines

At PRIMO MEDICO, you will only find reputable medical authorities who were selected according to strict guidelines. Experience, innovative treatment techniques or reputation in science and research play an important role here.