1. Division of Anesthesiology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
2. Department of Clinical Engineering, Niigata University Medical and Dental Hospital, Niigata, Japan
3. Division of Thoracic and Cardiovascular Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
4. Department of Pediatric Cardiac Surgery, University Hospital Bonn, Bonn, Germany
5. Department of Pediatric Cardiothoracic Surgery, Children's Hospital of Wisconsin, Milwaukee, Wisconsin, United States
6. Department of Pediatric Anesthesiology, University Hospital Bonn, Bonn, Germany