The history and advancement of pediatric cardiac surgery in Finland are described in this population-based study. All flaws and procedures are included in an outcome study for the first time in the literature, revealing the true effectiveness of operational treatment. This population-based, long-term outcome study consists of all patients operated on since the commencement of juvenile cardiac surgery in Finland in 1953 and to the end of 1989. The survival rate using data from Finland’s Population Registry Center. They compared survival rates to those of a general population of the same age and sex. 6,461 individuals were operated on during the study period, with 96% identified. The quality of life was investigated using a questionnaire. Patients had a 15% lower 45-year survival rate than the overall population. The chance of survival and the number of operations required varied greatly depending on the defect. Compared to the average community, the patients fared well with their disabilities. The level of education was comparable, and employment was higher than projected.

Patients were as likely as the general population to be in a stable relationship, but parenting was less common than expected. Congenital cardiac disease was present in 2.4% of the patients’ offspring. Children who have been operated on for cardiac abnormalities have a decent overall survival rate. Patients do not have an increased risk of dying years following a successful operation, especially those with milder abnormalities. The vast majority of patients are in good health, and their living situations are similar to that of the general public.