Professor Schels specializes in cardiology at Nordrhein-Westfalen Clinic Complex – the largest Heart Center in Germany. Three-chamber pacemaker installation may cost around $37,870, covering surgery, anesthesia, device, and 5 nights hospitalization. The clinic holds German Cancer Society certification and processes 45,000 cardiac cases annually. Pre-op includes comprehensive testing like 24-hour ECG monitoring and echocardiography.