Real-time remote CR programme and electrocardiogram (ECG) monitoring system (Fig. 
respiratory distress, ventricular tachycardia/fibrillation, shortness of breath
ATRIAL FIBRILLATION, PREMATURE VENTRICULAR CONTRACTIONS
Real-time remote cardiac rehabilitation programme and ECG monitoring system. The patient wears the ECG measurement device and opens the application. A medical interview is conducted in the hospital, and the patient receives exercise instructions. ECG, electrocardiogram; VOPatients in the remote CR programme used the PICORA™ mobile phone application (SAN-EI Medisys, Inc.) using a smartphone or tablet device at a predetermined time. Subsequently, an ECG was obtained, and percutaneous oxygen saturation was measured using check me™ (SAN-EI Medisys, Inc.)The data were transmitted to a smartphone or tablet device using Bluetooth® wireless technology (Bluetooth is a registered trademark of the Bluetooth Special Interest Group, Inc.).Cardiologists and physical therapists provided guidance on exercise and education. A cardiologist evaluated blood pressure, heart rate, weight, and respiratory distress and checked for any chest symptoms and shortness of breath, particularly before rehabilitation training. The cardiologist and physical therapists monitored the ECG for any findings of atrial fibrillation, ventricular tachycardia/fibrillation, or premature ventricular contractions. The presence of any of these findings would have resulted in the patient to undergo a detailed examination at a hospital.