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Prof. Dr Dr habil. Thomas Carus FACS - Portrait

Prof. Dr Dr habil. Thomas Carus FACS

Head Physician of the Department for General and Visceral Surgery

Specialist in Bariatric Surgery

+49 4241 618 3001

Bariatric Surgery Lower Saxony: Prof. Dr Dr Thomas Carus

Treatment focus

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


Diepholz County Clinics – Bassum Clinic
Department for General and Visceral Surgery
Marie-Hackfeld-Str. 6, D-27211 Bassum

P: +49 4241 618 3001 F: +49 4241 813 5002

Consultation Hours:

by appointment

Diepholz County Clinics – Bassum Clinic – Logo

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)

More Information


Prof. Dr Dr habil. Thomas Carus is a specialist in bariatric surgery and head of the Department for General and Visceral Surgery at the Bassum Clinic.

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.

Please, visit the website of the Bassum Clinic for more information.


Curriculum Vitae

Since 1 January 2023Head Physician – Bassum Clinic, Department for General and Visceral Surgery
2019 – 2022Head Physician – Elisabeth-Hospital Thuine, Department for General, Visceral and Vascular Surgery, Center for Minimally Invasive Surgery, Obesity Center, Hernia Center
2016 – 2019Member of the Technological Committee of the E.A.E.S. (European Association of Endoscopic Surgery)
2015 – 2019Head Physician – Asklepios Westklinikum Hamburg, Department for General, Visceral and Vascular Surgery, Reference Center for Obesity and Metabolic Surgery, Center for Minimally Invasive Surgery
May 2015Venia legendi in Surgery at the Carl Gustav Carus University Dresden
2011 – 2015Head Physician and Medical Director (2012-2014) - Klinikum Bremen-Ost, Department for General, Visceral and Trauma Surgery, Center for Minimally Invasive Surgery
2011Award 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)
2009Elected to the Board of CAMIC (until 2017), Surgical Association for Minimally Invasive Surgery
2007 – 2011Head Physician – Cuxhaven Hospital, Department for General, Visceral and Vascular Surgery, Center for Minimally Invasive Surgery
2001 – 2007Head Physician - Hospital Neuwerk Mönchengladbach, Department for General, Visceral and Vascular Surgery
2001Specialist in Vascular Surgery
1999Specialist in Visceral Surgery
1996 – 2001Acting Senior Physician - Städtische Kliniken Neuss, Department of General, Visceral and Vascular Surgery
1994 – 1996Senior Physician - Evangelical Hospital Oldenburg, Department for General and Visceral Surgery
1995Specialist in Surgery
1991 – 1994Assistant Physician - Evangelical Hospital Düsseldorf, Department for General, Vascular and Trauma Surgery
20 March 1991Doctorate at the University of Düsseldorf
1988 – 1991Junior Physician and Assistant Physician, Diepholz Hospital, Department of General and Trauma Surgery
1982 – 1988Study of Human Medicine at the University of Düsseldorf


  • Dr Sabine Treude
    Senior Physician in Charge
  • Myroslav Lyba
    Senior Physician
  • Jens Hauschildt
    Senior Physician
  • Georg Zenah
    Senior Physician
  • Khalid Adam
    Senior Physician

Research & Training



  • Obesity Consultation Hour: Wednesdays from 11:30 AM – 2:30 PM
  • Nutritional counseling in the clinic
  • Special instruments for bariatric surgery
  • Long-term follow-up care of bariatric patients by the head physician


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Transport Connections

Bassum Station1 km
Bremen Main Station33 km
Bremen Airport29 km
Hanover Airport99 km
Münster/Osnabrück Airport124 km

Information about Bassum

The Lower Saxony town Bassum is located about 25 km south of Bremen. The city in Diepholz County has about 16,125 inhabitants. Bassum is located in the east of the Wildeshauser Geest Nature Park. The largest nature park in Lower Saxony is about 1500 km² and offers a diverse landscape and a well-developed and signposted network of cycling and hiking trails for visitors.

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Prof. Dr Dr habil. Thomas Carus FACS

Head Physician of the Department for General and Visceral Surgery

Diepholz County Clinics – Bassum Clinic

Department for General and Visceral Surgery

Marie-Hackfeld-Str. 6, D-27211 Bassum

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