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Mitral Valve Repair With A Novel Single-port Robotic System: An Animal Experimental Feasibility Study
Jiamiao GONG, Sheng LIU, Hang XU, Chunyu YU, Zhe ZHENG.
National Center for Cardiovascular Diseases and Fuwai Hospital, Beijing, China.
BACKGROUND:We conducted this study to investigate the feasibility of mitral valve repair using the SHURUI® single-port robotic system (Beijing Surgerii Technology Co., Ltd., Beijing, China) through a single intercostal incision.
METHODS:We completed mitral valve repair for 8 small-tailed Han sheep via a single incision made in the intercostal space, including annuloplasty and artificial chordae.
RESULTS:Creating the intercostal access, docking the single-port robotic system and establishing peripheral vascular extracorporeal circulation took between 20 and 100 min (average 45.0 ± 24.8 min). The extracorporeal circulation time and cross-clamping time were respectively 197.3 ± 79.7 min and 127.0 ± 55.8 min. The average teleoperation time was 90.0 ± 32.7 minutes. All sheep were successfully survived and the transesophageal echocardiography showed normal valve function.
CONCLUSIONS:It is technically feasible for surgeons to perform mitral valve repair using the SHURUI® single-port robotic system through a single intercostal incision. However, further clinical trials are still needed to assess the true clinical benefits for patients.
Table 1 Results| Sheep | Weight (kg) | Set-up (min) | CPB (min) | Clamp (min) | Total teleoperation (min) |
| 1 | 58 | 100 | 280 | 195 | 119 |
| 2 | 53.5 | 60 | 284 | 168 | 100 |
| 3 | 68.8 | 35 | 286 | 210 | 155 |
| 4 | 65.2 | 20 | 123 | 86 | 70 |
| 5 | 40.6 | 35 | 215 | 90 | 70 |
| 6 | 57.6 | 40 | 172 | 117 | 75 |
| 7 | 42.5 | 35 | 118 | 70 | 60 |
| 8 | 38.9 | 35 | 100 | 80 | 70 |
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