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Cardiovascular system in newborns from multiple pregnancy.

This work presents the results of clinical observations and ECG examinations in 45 newborns from multiple pregnancies, including 27 full-term and 13 premature newborns. In both groups cyanosis was observed, the second twin born prematurely being most often affected. Changes in ECG include bradycardia, which occurs in the first 24 hours of life and chiefly in children born with asphyxia. The same newborns showed a delayed evolution of T wave. The similarity of ECG was noticed in 5 MZ pairs.