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Acoustic variations associated with congenital heart disease

Korean Journal of Pediatrics 2010;53(2):190-194.
Published online February 15, 2010.
Acoustic variations associated with congenital heart disease
Jung Eun Oh2, Yoon Mi Choi1, Sun Jun Kim2, Chan Uhng Joo1
1Department of Pediatrics, Chonbuk National University Medical school, Institute of Cardiovascular Research, Jeonju, Korea
2Department of Pediatrics, Chonbuk National University Medical school, Jeonju, Korea
선천성 심장병 환아에서 음향학적 요소의 변동
오정은2, 최윤미1, 김선준2, 주찬웅1
1전북대학교 의학전문대학원 소아과학교실, 심혈관연구소
2전북대학교 의학전문대학원 소아과학교실
Correspondence: 
Chan Uhng Joo, Tel: +82-63-250-1471, Fax: +82-63-250-1464, Email: joocu@chonbuk.ac.kr
Abstract
Purpose
: To investigate the nature of deviant voice physiology in preoperative children with congenital heart disease.
Methods
: Ninety-four children with congenital heart disease were enrolled. Their cries and related acoustic variables (fundamental frequency, duration, noise to harmonic ratio, jitter¢¬ and shimmer) were analyzed using a multi-dimensional voice program.
Results
: The average fundamental frequency showed a significant decrease in patent ductus arteriosus, ventricular septal defect, and tetralogy of Fallot, except in atrial septal defect and pulmonary stenosis. The length of the analyzed sample (duration) did not show a significant difference when compared with the control group. There was a significant increase in jitter percent in ventricular septal defect, patent ductus arteriosus, and atrial septal defect. There was an increase in shimmer in ventricular septal defect, patent ductus arteriosus, and atrial septal defect. The noise-to-harmonic ratio increased in ventricular septal defect, patent ductus arteriosus, and atrial septal defect but there was no significant difference in pulmonary stenosis and tetralogy of Fallot. While analyzing acoustic variables, the voice change was significantly higher, especially in patent ductus arteriosus followed by ventricular septal defect and atrial septal defect. Most of these acoustic variables were deviant in left-to-right shunt lesions in congenital heart disease, especially in patent ductus artriosus.
Conclusion
: The results of the voice change analysis of preoperative children with congenital heart disease revealed that the acoustic variables differed by each congenital heart disease. Moreover, the acoustic variables were prominently deviant in congenital heart disease with left-to-right shunts.
Key Words: Cardiovocal syndrome, Hoarseness, Acoustic variation, Congenital heart disease


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