[Surgical management of valve replacement in children].
From 1965 to 1990, 49 valve replacements were performed on 43 patients under the age of 15. Mitral valve replacements were performed on 21 patients, and re-replacements were done on 4 of them afterwards. In the first 9 mitral valve replacements before 1974, Starr-Edwards (S-E) ball valves were used. Five of these patients died in the hospital (early mortality rate was 56%). Since 1975, bioprosthetic valves were used in three cases, but all of these valves ceased to function due to primary tissue failure (PTF) within 3 years. Consequently, SJM valves are now used as a first choice. Ten aortic valve replacements were performed on 9 patients with the results of one early death, two late deaths, and one late re-operation. Tricuspid valve replacements were performed on 11 patients, 5 of whom utilized S-E ball valves. Three of the five patients died in the hospital. One patient was re-operated on, swapping the S-E ball valve for the SJM valve. SJM valves were used primarily in 2 patients, and bioprosthetic valves in 4. Two patients died, one with a SJM valve, and the other with a bioprosthetic valve. Two pulmonary valve replacements were performed, one employing a SJM valve, the other a bioprosthetic valve. Two adult patients with SJM valve in the right side of the heart had thrombotic complications, though the patients with bioprosthetic valves had none. Atrioventricular valve replacements were performed on 5 patients under the age of 3, but all of them died.(ABSTRACT TRUNCATED AT 250 WORDS)
Kanazawa
H
H
Second Department of Surgery, Niigata University School of Medicine.
Miyamura
H
H
Watanabe
H
H
Sugawara
M
M
Takahashi
Y
Y
Shinonaga
M
M
Tatebe
S
S
Hayashi
J
J
Eguchi
S
S
D000293:Adolescent; D001021:Aortic Valve / Q000601:surgery; D001705:Bioprosthesis; D002648:Child; D002675:Child, Preschool; D005500:Follow-Up Studies; D006350:Heart Valve Prosthesis; D006801:Humans; D007223:Infant; D008943:Mitral Valve / Q000601:surgery; D012086:Reoperation; D014261:Tricuspid Valve / Q000601:surgery