[RECUR - Establishment of An Automated Digital Registry for Patients with Recurrent Stones in the Upper Urinary Tract].

Kidney stones, like cardiovascular diseases and diabetes mellitus, affect a large number of people. Patients suffer from acute pain, repeated hospitalizations and associated secondary diseases, such as arterial hypertension and renal insufficiency. This results in considerable costs for the society and its health care system. The recurrence rate is as high as 50%. The registry for RECurrent URolithiasis (RECUR) aims to fill existing evidence gaps. The prospective and longitudinal RECUR registry is funded by the German Ministry of Education and Science (BMBF). It is based on the digital infrastructure of the German Medical Informatics Initiative (MII). RECUR aims to include patients that have suffered from more than one stone occurrence and treated at any one of the ten participating university hospitals of the MIRACUM consortium. The intention is to obtain new information on risk factors and to evaluate different diagnosis and treatment algorithms. Along with the data form the patient's Electronic Health Records (EHR), the RECUR project will also collect Patient Reported Outcomes data from patients with recurrent kidney stones. These data will be collected at participating sites using digital questionnaires via a smartphone app. These data will be merged with medical data from the hospital information systems and saved in the MII research data repositories. The RECUR registry has a model character due to its fully federated, digital approach. This allows the recruitment of many patients, the collection of a wide range of data and their processing with low administrative and personnel costs.