Key result
Indomethacin closes PDA in ~67% of infants three weeks or younger but fails in older infants.
Why the study?
The age range over which indomethacin therapy is effective for closing patent ductus arteriosus in infants remains undetermined.
Does indomethacin close patent ductus arteriosus in infants, and is the efficacy age-dependent?
Does indomethacin close patent ductus arteriosus in infants, and is the efficacy age-dependent?
Indomethacin effectively closes patent ductus arteriosus in premature infants, but its efficacy is highly age-dependent, requiring treatment before 33 weeks of actual age for complete closure.
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May support early indomethacin for PDA in neonates ≤3 weeks; hypothesis-generating and requires randomized confirmation before practice change.
McCarthy et al. (1978) studied Patent ductus arteriosus (n=18). Indomethacin was evaluated on Complete ductal closure. Indomethacin therapy resulted in complete closure of patent ductus arteriosus in 8 of 12 infants aged 3 weeks or younger, but failed to achieve complete closure in older infants.
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