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Mitral Valve Repair for Mitral Regurgitation in Pediatric Patients  

Sim, Hyung-Tae (Division of Pediatric Cardiac Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine)
Yun, Tae-Jin (Division of Pediatric Cardiac Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine)
Park, Jeong-Jun (Division of Pediatric Cardiac Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine)
Jung, Sung-Ho (Division of Pediatric Cardiac Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine)
Uhm, Ju-Yeon (Division of Pediatric Cardiac Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine)
Jhang, Won-Kyoung (Division of Pediatric Cardiac Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine)
Kim, Young-Hwue (Division of Pediatric Cardiology, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine)
Ko, Jae-Kon (Division of Pediatric Cardiology, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine)
Park, In-Sook (Division of Pediatric Cardiology, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine)
Seo, Dong-Man (Division of Pediatric Cardiac Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine)
Publication Information
Journal of Chest Surgery / v.40, no.8, 2007 , pp. 536-545 More about this Journal
Abstract
Background: Compared to adult patients, mitral regurgitation in pediatric patients is uncommon and it shows a wide spectrum of morphologic abnormalities. We retrospectively evaluated the midterm results of mitral valve repair in pediatric patients. Material and Method: Between December 1993 and August 2006, mitral valve repair was performed in 35 patients who were aged less than 18 years, The mean age was $5.3{\pm}5.3$ years and the mean body weight was $20,0{\pm}16.3\;kg$. 18 patients had associated cardiac anomalies. The most common pathologic finding was leaflet prolapse (n=17). The most common method of repair was the double orifice technique (n=15). Result: There was no early mortality. Eight patients underwent reoperation (24.2%), and five of them required mitral valve replacement. Among the four ring annuloplasty cases, two have developed mitral stenosis. Four out of the 14 double orifice cases required reoperation. One case of early mortality and one case of late mortality occurred in the reoperation cases. The 5-year survival rate and the freedom from reoperation rate were $93.3{\pm}4.6%$ and $76.1{\pm}8.2%$, respectively. The 5-year freedom from mitral valve replacement rate was $83.6{\pm}6.7%$. There was no significant risk factor for reoperation. Conclusion: The midterm results of mitral valve repair are very acceptable in pediatric patients compared to the adult cases, although the reoperation rate is slightly higher.
Keywords
Mitral valve, repair; Mitral valve insufficiency; Child;
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