A Ring-type Wearable Device for Atrial Fibrillation

1. Study title: Diagnostic Performance of a Ring-type Wearable Device Using Deep Learning Analysis of Photoplethysmographic Signals for Detecting Atrial Fibrillation.
2. Study type: Investigator initiated study.
3. Study design: Prospective observational cohort registry design.
4. Sponsor: Sky Labs, Inc., Republic of Korea.
5. The aim of the study: To evaluate diagnostic performance of a ring-type wearable device for detecting atrial fibrillation.
6. Study period: From the date of IRB approval to 31th Dec. 2019.
7. The size of study population: 200 participants
8. The eligibility criteria:

(1) Those with persistent atrial fibrillation (2) Those who admitted the institution for elective direct-current cardioversion (3) Those aged 19 years or more 9. The exclusion criteria:

(1) Those with other forms of cardiac arrhythmias (2) Those aged less than 19 hears (3) Those who are not eligible to perform electrical cardioversion 10. Procedures of the study

1. A participant is under the routine procedures of direct-current cardioversion.
2. On admission, a participant is given with detailed information of the study.
3. After the informed consent, the only additional procedure due to the study is recording photoplethysmographic signal by wearing a ring-type device.
4. Recorded signals are evaluated without encompassing persornal information. 11. Financial benefits to the participants: None.