[Determinants of short-term mortality and morbidity after the complete repair of tetralogy of Fallot in infant groups under 12 months and one-four years of age].
OBJECTIVE
In patients with tetralogy of Fallot, infants less than 12 months old and children between one and four years old were compared after total repair surgery for determination of outcome of surgery, risk factors influencing mortality and morbidity.


METHODS
Fifty- two patients with tetralogy of Fallot between five months and four years of ages were included into the study. The patients were divided into two groups depending on their ages; Group 1; one year old and younger (n=21) whereas, group 2; one and four years old (n=31). Statistical analysis was performed using Mann-Whitney U, Chi-square or where appropriate Fisher's exact tests and logistic regression analysis was applied for determination of predictors of mortality.


RESULTS
The parameters that were different between two groups include; age (Group 1; 10.00 ± 1.67 months and Group 2; 2.39 ± 0.77 years, p<0.001), weight (Group 1; 9.74 ± 2.23 kg, Group 2; 11.97 ± 1.78 kg, p<0.001), McGoon ratio (Group 1; 1.94 ± 0.29, Group 2; 2.19 ± 0.27, p=0.001). Mortality is found in 3 patients in group 1 (14.2%) whereas, in five patients in group 2 (16%) and the difference was not statistically significant. In group 2 in only one patient (0.03%) had complete atrioventricular block and required permanent pacemaker implantation. When patients were compared according to groups with and without mortality, the significant differences were found in following variables: peritoneal dialysis (p=0.001), pleural effusion (p=0.02), right ventricular pressure (p=0.001) and right ventricle/aorta pressures ratio (p=0.001). However, none of these risk factors had significant value in prediction of mortality.


CONCLUSIONS
Depending on these results, in patients under one year of age with symptomatic tetralogy of Fallot, if there are no other pathologies that have potential to increase risk of mortality, the complete repair surgery can be performed with same amount of risks and similar morbidity and mortality ratios.
Kartal Koşuyolu Yüksek İhtisas Eğitim ve Araştırma Hastanesi, Kalp Damar Cerrahisi, İstanbul, Türkiye.
Ahmet
A
Saşmazel
Ali
A
Fedakar
Ayşe
A
Baysal
Ahmet
A
Calışkan
Onursal
O
Buğra
Hasan
H
Sunar
D006348:Cardiac Surgical Procedures / Q000009:adverse effects / Q000401:mortality* / Q000706:statistics & numerical data; D016009:Chi-Square Distribution; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D016015:Logistic Models; D008297:Male; D012307:Risk Factors; D018709:Statistics, Nonparametric; D013771:Tetralogy of Fallot / Q000401:mortality* / Q000601:surgery; D016896:Treatment Outcome