초록접수 현황
| 20F-183 | 구연 발표 |
Results after mitral valve replacement with mechanical prostheses in children under three years of age
Eun Seok Choi, Chun Soo Park, Bo Sang Kwon, Tae-Jin Yun
Divisions of Pediatric Cardiac Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
Purpose : We examined outcomes after mitral valve replacement (MVR) with mechanical prostheses in children younger than 3 years.
Methods : Medical records were reviewed of all patients under 3 years of who underwent mechanical MVR between January 1996 and April 2019 (n = 24). Median valve size was 19 mm (range 16 – 29 mm). Median age and body weight at operation was 16.5 months (range 1.5 – 31.7 months) and 7.6 kg (range 3.7 – 12.2 kg). Median follow-up duration was 6.2 years (range 0 – 20.4 years).
Results : There were two early deaths and was one late noncardiac death. Overall survival was 87.3% at 5 years. Five patients required redo-MVR during follow-up period. Redo-MVR resulted from somatic outgrowth in 3 patients, limited disc mobility in 2 patients. Median time interval between original operation and redo MVR was 7.3 years (range 1.8 – 15.4 years). Freedom from redo-MVR was 68.3% at 11 years. Freedom from the mean gradients across the valves more than 10 mmHg was 83.3% at 5 years and 39.8% at 11 years.
Conclusion : MVR in children under 3 years carries a significant early mortality. But implanted mechanical prostheses perform well with durable hemodynamics in young children. MVR with mechanical prostheses can be a salvage option even in small children with mitral valve disease in which repair was failed.
Methods : Medical records were reviewed of all patients under 3 years of who underwent mechanical MVR between January 1996 and April 2019 (n = 24). Median valve size was 19 mm (range 16 – 29 mm). Median age and body weight at operation was 16.5 months (range 1.5 – 31.7 months) and 7.6 kg (range 3.7 – 12.2 kg). Median follow-up duration was 6.2 years (range 0 – 20.4 years).
Results : There were two early deaths and was one late noncardiac death. Overall survival was 87.3% at 5 years. Five patients required redo-MVR during follow-up period. Redo-MVR resulted from somatic outgrowth in 3 patients, limited disc mobility in 2 patients. Median time interval between original operation and redo MVR was 7.3 years (range 1.8 – 15.4 years). Freedom from redo-MVR was 68.3% at 11 years. Freedom from the mean gradients across the valves more than 10 mmHg was 83.3% at 5 years and 39.8% at 11 years.
Conclusion : MVR in children under 3 years carries a significant early mortality. But implanted mechanical prostheses perform well with durable hemodynamics in young children. MVR with mechanical prostheses can be a salvage option even in small children with mitral valve disease in which repair was failed.
첨부파일 : 대흉 초록 MVR.pptx
책임저자: Chun Soo Park
Divisions of Pediatric Cardiac Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
발표자: Eun Seok Choi, E-mail : gninihs@naver.com