-transparent.png){kind=logo}
The incidence of congenital heart defects was studied prospectively in all 664 218 children born in 1977 to 1984. Those suspected of having a heart disease were examined at the centre specialized in pediatric cardiology. All children who died were autopsied and those where a heart defect was proved were included in our series. In total, 4409 infants (6,64/1000 live births) were born with a heart defect in Bohemia. Differences from one year to another were not statistically significant. The incidence of infants with a heart defect was highest in October, lowest in December, June and July (p less than 0.05). Seasonal incidence of individual forms of heart defects differed also. The seasonal variation was not influenced by the total number of live births. The high incidence of congenital heart defects in infants born in October and November coincides with the epidemics of influenza in early pregnancy.
M Samánek, and
Z Slavík, and
M Krejcír
August 1968,
Sovetskaia meditsina,
M Samánek, and
Z Slavík, and
M Krejcír
August 1972,
Orvosi hetilap,
M Samánek, and
Z Slavík, and
M Krejcír
January 1967,
Munchener medizinische Wochenschrift (1950),
M Samánek, and
Z Slavík, and
M Krejcír
April 2019,
The Journal of pediatrics,
M Samánek, and
Z Slavík, and
M Krejcír
January 1972,
Acta paediatrica Academiae Scientiarum Hungaricae,
M Samánek, and
Z Slavík, and
M Krejcír
March 1973,
Ceskoslovenska pediatrie,
M Samánek, and
Z Slavík, and
M Krejcír
June 1987,
Bratislavske lekarske listy,
M Samánek, and
Z Slavík, and
M Krejcír
March 1965,
Wiener klinische Wochenschrift,
M Samánek, and
Z Slavík, and
M Krejcír
March 1964,
Zentralblatt fur Chirurgie,
M Samánek, and
Z Slavík, and
M Krejcír
May 2010,
Ceska gynekologie,
