[App-based prehabilitation: implementation and adherence]

In recent years prehabilitation before oncological visceral surgery has become increasingly more in the clinical focus. The aim of prehabilitation is to significantly increase patient's physical and mental performance status through multimodal treatment resulting in a decrease of postoperative complications and faster rehabilitation. As prehabilitation requires a high level of personnel and economic resources in the healthcare system, app-based prehabilitation might be a suitable alternative. The currently available evidence shows a high patient adherence to app-based prehabilitation with an improvement of functional performance status; however, further studies with more patients especially from Germany are necessary to confirm the preliminary data and to become established in the clinical routine.