Effects of bariatric procedures


Obesity is a common disease in Germany. People with obesity suffer from a variety of comorbidities such as respiratory diseases, cardiovascular diseases and skin diseases, but also from psychological conditions. Therefore, an effective treatment of overweight and associated comorbidities requires comprehensive therapeutic measures. One treatment method, the bariatric operation, involves surgical change of the gastrointestinal tract. However, there is a risk of intraoperative and postoperative complications. Furthermore, the reduced ingestion and conversion of food can lead to metabolic disorders and psychological distress. For this reason, the long-term success of bariatric operations depends on appropriate aftercare and care of affected patients.

The project ABARO investigates treatment courses in patients after bariatric operation over several years in order to examine whether patients received the necessary aftercare and thus had long-term success. For this purpose, data from a survey of insured persons will be combined with health claims data and subsequently analyzed.

The health claims data will be used to investigate whether and to what extent complications arise, services are used (e.g., physical therapy) and comorbidities change. By means of the survey of insured persons, the quality of life (limitations, pain) as well as the utilization of medicine and nutritional supplements will be recorded. The results will be used to identify insufficient care and to develop solutions.

Funding period

Begin:   April 2020
End:   March 2023


  • The Federal Joint Committee (G-BA)


PD Dr. rer. nat. Oliver Riedel

Project coordination (national)

DAK Hamburg