Turk Kardiyoloji Dernegi arsivi : Turk Kardiyoloji Derneginin yayin organidir · 2015
Pulmonary and ventricular functions in children with repaired tetralogy of Fallot.
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Demirpençe Savaş, Güven Barış, Yılmazer Murat Muhtar, Öner Taliha, Doksöz Önder, Özdemir Rahmi, Nacaroğlu Hikmet Tekin, Meşe Timur, Tavlı Vedide, Can Demet
Аннотация
OBJECTIVE: This study aimed to evaluate biventricular function, brain natriuretic peptide levels, respiratory function test and 6 minute walking test (6MWT) in children with repaired tetralogy of Fallot (TOF), and analyse the correlation between these variables and clinical status.
METHODS: Twenty-five children (14 boys, 11 girls; aged 6 to 17 years) with repaired TOF (Group 1) and 25 age-sex matched healthy controls (Group 2) were enrolled in the study. Tissue Doppler echocardiography, respiratory function test, 6MWT distance and brain natriuretic peptide levels were measured.
RESULTS: Mean ages of the children at TOF corrective surgery and at study time were 5.1±3.5 years and 11.6±2.7 years respectively. The duration between palliative operation and corrective surgery was 4.3±2.0 years, and the follow-up period after corrective surgery was 6.3±3.0 years. The right ventricular and left ventricular myocardial performance indices (MPIs), and isovolumic relaxation and contraction times were significantly higher in Group 1 than in Group 2 (p<0.01). Spirometry displayed significantly reduced forced vital capacity (FVC), forced expiratory volume in one second (FEV1), forced expiratory flow 25-75% (FEF25-75) and inspirational capacity in Group 1 compared to Group 2 (p<0.01). In Group 1, 6MWT distances were significantly lower than in Group 2 (p=0.001). Right ventricular MPI is correlated with FEV1, FVC and 6MWT distance in the current study.
CONCLUSION: The children with repaired TOF had impaired ventricular and pulmonary functions. Hence, right ventricular MPI along with FEV1, FVC and 6MWT distance may be useful in the follow-up of children with repaired TOF.
METHODS: Twenty-five children (14 boys, 11 girls; aged 6 to 17 years) with repaired TOF (Group 1) and 25 age-sex matched healthy controls (Group 2) were enrolled in the study. Tissue Doppler echocardiography, respiratory function test, 6MWT distance and brain natriuretic peptide levels were measured.
RESULTS: Mean ages of the children at TOF corrective surgery and at study time were 5.1±3.5 years and 11.6±2.7 years respectively. The duration between palliative operation and corrective surgery was 4.3±2.0 years, and the follow-up period after corrective surgery was 6.3±3.0 years. The right ventricular and left ventricular myocardial performance indices (MPIs), and isovolumic relaxation and contraction times were significantly higher in Group 1 than in Group 2 (p<0.01). Spirometry displayed significantly reduced forced vital capacity (FVC), forced expiratory volume in one second (FEV1), forced expiratory flow 25-75% (FEF25-75) and inspirational capacity in Group 1 compared to Group 2 (p<0.01). In Group 1, 6MWT distances were significantly lower than in Group 2 (p=0.001). Right ventricular MPI is correlated with FEV1, FVC and 6MWT distance in the current study.
CONCLUSION: The children with repaired TOF had impaired ventricular and pulmonary functions. Hence, right ventricular MPI along with FEV1, FVC and 6MWT distance may be useful in the follow-up of children with repaired TOF.