Heart murmurs in low birth weight infants.

This study is based on 315 infants in different prematurity stages who were patients in the Special Care Unit for Preterm Infants at the First City Hospital, Sofia. Heart murmurs were observed in 98 infants. The clinical observations and investigations can be grouped as follows: 1) murmurs due to late closing or reopening of ductus arteriosus; 2) murmurs in patients with anemia; 3) murmurs in patient with anemia; and 4) accidental murmurs. The study is focused on the high percentage of heart murmurs in low-birth weight infants during the post-adaptation period.