The Prevalence of congenital heart malformations, mortality and lethality of infants with these malformations in Kaunas in 1995–1998

This study presents the results of analysis of congenital heart malformations (CHM) prevalence, lethality and mortality of newborns with CHM in 1995\u96-1998 in Kaunas city. According to official data, 131 CHM cases were registered in delivery hospitals using statistical forms 066. We conducted a validated registry in all children outpatient hospitals and in Neonatology division of Kaunas University of Medicine. We registered additional 53 CHM cases, which made up an increase by 28.8 percent. The prevalence of CHM increased from 7.5 to 10.6 per 1000 livebirths. Mortality of infants, born with CHM was 2.36 per 1000 livebirths, while lethality was 22.3 percent per year