Abstract
Introduction. In the late postoperative period after mitral valve prosthesis, children and adolescents may develop complications such as prosthesis dysfunction due to the development of pannus, mismatch in the size of the prosthesis with the parameters of the child’s physical development, less often – prosthetic thrombosis.
Objective: To study the long-term results of mitral valve prosthetics in congenital heart diseases performed in childhood and adolescence.
Material and methods. The results of 273 mitral valve prosthesis surgeries in children and adolescents performed at the NCSSK in 1997–2017 are analyzed. Age at the time of surgery ranged from 1 month to 18 years (median – 3.5 (1.5 and 9.5) years).
Results. The time after surgery ranged from 1 to 18 years, an average of 6.1 ± 3.9 years. Re-prosthetics of the mitral valve was necessary in 99 (36.3%) of these patients. Prosthesis dysfunction due to pannus formation was noted in 44 (16.1%) cases, due to prosthesis thrombosis – in 7 (2.6%), due to prosthesis fistula – in 4 (1.5%), due to infective endocarditis – in 4 (1.5%), due to separation of the prosthesis – in 1 (0.4%) case. The mismatch between the size of the prosthesis and the parameters of the child’s physical development was noted in 37 (13.6%) cases. Cardiac arrhythmia requiring repeated surgical interventions were reported in 10 (3.7%) patients.
Conclusion. Repeated surgical interventions in most cases were associated with the occurrence of prosthesis dysfunction and prosthesis size mismatch with the patient's physical development parameters.
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About the authors
- Marina L. Ermolenko, Dr. Med. Sc., Head of Department, ORCID
- Ol'ga I. Medvedeva, Dr. Med. Sc., Leading Researcher,
- Mariya N. Nevedrova, Cand. Med. Sc., Researcher, ORCID
- Timur Yu. Danilov, Dr. Med. Sc., Leading Researcher, ORCID
- Viktor B. Samsonov, Dr. Med. Sc., Leading Researcher, ORCID
- Dmitriy V. Kovalev, Dr. Med. Sc., Leading Researcher, ORCID
- Vera I. Dontsova, Cand. Med. Sc., Ultrasonic Diagnostics Physician, ORCID
- Viktoriya V. Plakhova, Dr. Med. Sc., Ultrasonic Diagnostics Physician, ORCID
