Bariatric Surgery Lower Saxony: Prof. Dr. Dr. Thomas Carus

Prof. Dr Dr habil. Thomas Carus FACS
Head Physician of the Department of General, Visceral and Vascular Surgery
Specialist in Bariatric Surgery
Thuine, Germany

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Treatment Focus

  • Gastric reduction
  • Gastric bypass
  • Gastric balloon
  • Redo surgery
  • Abdominoplasty
  • Multimodal therapy concept (nutrition, exercise, behavior therapy)

Medical Range

Range of Diagnostic Services

  • Physical examination
  • Ultrasound of the abdomen
  • Ultrasound of the thyroid gland
  • Doppler and duplex sonography of the vessels
  • Rectoscopy
  • Endosonography
  • Anal manometry
  • In-house: CT, gastroscopy, colonoscopy, ECG

Range of Therapeutic Services

  • Laparoscopy (abdominal endoscopy)
  • Laparoscopic sleeve gastrectomy (tubular stomach)
  • Laparoscopic Roux-en-Y gastric bypass
  • Redo surgery after bariatric surgery
  • Endoscopic gastric balloon implantation
  • Reconstructive surgery after severe weight loss
  • Abdominoplasty (tummy tuck)
  • Thigh lift
  • Upper arm lift
  • Laparoscopic cholecystectomy
  • Laparoscopic surgery of abdominal and incisional hernias
  • Varicose vein surgery
  • Proctological surgery
  • Hemorrhoidal artery ligation (HAL)

About Prof. Dr Dr habil. Thomas Carus FACS

Prof. Dr. med. Dr. habil Thomas Carus is a specialist in bariatric surgery and head physician of the department of general, visceral, and vascular surgery at the Elisabeth-Hospital Thuine.

The motivated and experienced team around Prof. Carus supports patients with severe overweight on their way to an easier and healthier life through an individually developed program for permanent weight reduction. In the process, necessary surgeries are carried out with the most up-to-date surgical techniques in a patient-friendly manner.

Specialist for the Treatment of Obesity (Severe Overweight) in Lower Saxony

Repeated unsuccessful attempts to lose weight, yo-yo dieting, and discomfort during exercise are incredibly frustrating for many obese patients. Therefore, to reduce secondary damage of massive overweight, also public health insurances have recognized that cost coverage for bariatric surgeries is significant from an economic point of view.

The primary goal of all bariatric surgeries is massive weight loss through the surgical reduction of the digestive tract. However, this weight loss is not an end but is intended to reduce the risk of all complications associated with massive obesity. Even the course of already manifested diseases, such as type II diabetes mellitus, high blood pressure, or sleep apnea syndrome, is usually positively influenced by massive weight reduction.

Losing Weight by Stomach Reduction

Large portions of the stomach are surgically removed in gastric reduction, where only a tubular sleeve stomach remains. Its reduced filling volume prevents excessive food intake by immediately providing a feeling of fullness. As a result, the overweight is reduced by 50% on a statistical average. However, alternative surgical techniques such as gastric bypass are preferable for patients suffering from severe heartburn.

Expert for Gastric Bypass Surgery

In a so-called Roux-en-Y gastric bypass, a small reservoir (pouch) is also formed from the upper portion of the stomach and sutured directly to the middle parts of the small intestine, bypassing the remaining portions of the stomach. This effectively reduces the intestinal surface area used for nutrient absorption so that fewer calories in the form of fats and carbohydrates can be absorbed from the food pulp. Nevertheless, the eliminated loop of the intestine must be reconnected to the draining segment to ensure mixing with digestive juices from the gallbladder and pancreas, which usually takes place in the eliminated upper segment of the small intestine.

Treatment of Overweight by Gastric Balloon

If surgery is out of the question for personal or medical reasons, Prof. Dr. Dr. Thomas Carus also offers a less invasive method to treat obesity effectively. A balloon is placed with an endoscope in front of the pylorus at the exit and inflated during a gastroscopy under sedative sleep when using that method. As a result, the stomach passage slows down, and the feeling of hunger is effectively lowered.

Department for Abdominoplasty in Lower Saxony

Since the skin's connective tissue is usually irreversibly overstretched after a successful weight reduction, many patients suffer from their physical appearance due to the sagging abdominal folds. Therefore, abdominoplasty is an aesthetic procedure that should principally not be carried out until the target weight has been reached. During this procedure, deeper muscle and connective tissue layers are tightened, and excess skin and fatty tissue are removed. Subsequent tightening of the skin shapes a tighter, flatter abdomen.

Suppose there is a medical indication due to secondary damage caused by the sagging abdominal wall (e.g., intertrigo). In that case, an application can be made to the health insurance company to cover the costs.

State-of-the-Art Multimodal Therapy for Obesity

Multimodal therapy for obesity is an essential component of obesity treatment and comprises three components that lead to the desired long-term success together:

  1. Nutritional therapy: this involves a sustainable diet change, professionally supervised by dieticians.
  2. Exercise therapy: the energy balance is kept negative with moderate exercise. For this, medical advice is essential to avoid potentially dangerous sports.
  3. Behavior therapy: since self-reflection and impulse control is often a limiting factor for the long-term prospects of success of a lifestyle intervention, especially in obese patients, cognitive-behavioral therapy forms the third pillar of the multimodal model.

If bariatric surgery is to be covered by health insurance, the patient must follow the multimodal concept for six months to treat their obesity disease.

Visit the Obesity Center website for more information.


Curriculum Vitae

Since November 2019 Head Physician – Elisabeth-Hospital Thuine, Department for General, Visceral and Vascular Surgery, Center for Minimally Invasive Surgery, Obesity Center, Hernia Center
2016 – 2019 Member of the Technological Committee of the E.A.E.S. (European Association of Endoscopic Surgery)
2015 – 2019 Head Physician – Asklepios Westklinikum Hamburg, Department for General, Visceral and Vascular Surgery, Reference Center for Obesity and Metabolic Surgery, Center for Minimally Invasive Surgery
May 2015 Venia legendi in Surgery at the Carl Gustav Carus University Dresden
2011 – 2015 Head Physician and Medical Director (2012-2014) - Klinikum Bremen-Ost, Department of General, Visceral and Trauma Surgery, Center for Minimally Invasive Surgery
2011 Award of the Academic Title "Professor" for the Specialty "Minimally Invasive Surgery" by the Senator for Education and Science of the Free Hanseatic City of Bremen (§ 25 Bremen University Act)
2009 Elected to the Board of CAMIC (until 2017), Surgical Association for Minimally Invasive Surgery
2007 – 2011 Head Physician – Cuxhaven Hospital, Department of General, Visceral and Vascular Surgery, Center for Minimally Invasive Surgery
2001 – 2007 Head Physician - Hospital Neuwerk Mönchengladbach, Department of General, Visceral and Vascular Surgery
2001 Specialist in Vascular Surgery
1999 Specialist in Visceral Surgery
1996 – 2001 Acting Senior Physician - Städtische Kliniken Neuss, Department of General, Visceral and Vascular Surgery
1994 – 1996 Senior Physician - Evangelical Hospital Oldenburg, Department of General and Visceral Surgery
1995 Specialist in Surgery
1991 – 1994 Assistant Physician - Evangelical Hospital Düsseldorf, Department of General, Vascular and Trauma Surgery
20 March 1991 Doctorate at the University of Düsseldorf
1988 – 1991 Junior Physician and Assistant Physician, Diepholz Hospital, Department of General and Trauma Surgery
1982 – 1988 Study of Human Medicine at the University of Düsseldorf

Medical Team

  • Mohamad Samir Aldarwish
    Senior Physician
  • Bernd Beier
    Senior Physician
  • George Zenah
    Senior Physician


  • Obesity consultation hours: Thursdays from 1 PM - 6 PM and daily by appointment.
  • Nutritional counseling in the clinic
  • Special instruments for bariatric surgery
  • Long-term follow-up care of bariatric patients by the head physician


Lingen Station 13 km
Osnabrück Main Station 60 km
Münster/Osnabrück Airport 65 km
Bremen Airport 130 km

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Prof. Dr Dr habil. Thomas Carus FACS
Head Physician of the Department of General, Visceral and Vascular Surgery

Niels-Stensen-Kliniken | Elisabeth-Hospital Thuine
Department for General, Visceral and Vascular Surgery, Obesity Center
Klosterstraße 4, D-49832 Thuine

T: +49 5902 861 4008
F: +49 5902 951 510


From Monday to Friday from 9:00 AM - 2:00 PM, and on Thursdays until 6:00 PM and by appointment

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