Affiliations: [a]
Department of Neonatology, Institute of Post Graduate Medical Education & Research and SSKM Hospital, Kolkata, India
| [b]
Department of Cardiology, Bankura Sammilani Medical College and Hospital, Bankura, India
| [c]
Department of Pharmacology, Institute of Post Graduate Medical Education & Research and SSKM Hospital, Kolkata, India
Correspondence:
[*]
Address for correspondence: Dr Anindya Kumar Saha, I P G M E & R and SSKM Hospital, Department of Neonatology, 244, A J C Bose Road, Kolkata, PIN-700020, India. Tel.: +91 9830149059; E-mail: [email protected].
Abstract: BACKGROUND:In preterm infants, persistence of ductus arteriosus is an important medical condition. Functional echocardiography for patent ductus arteriosus (PDA) may guide clinical decision-making regarding treatment requirement strategies. Objectives of the study were to assess the trends of clinical and functional echocardiographic parameters with evolution of ductus arteriosus in babies≤1250 gm of birth weight and to evaluate whether there is any association of these parameters with persistence of ductus. METHODS:In this prospective observational study, recruited babies were assessed serially for clinical events and functional echocardiography. Babies were classified into three groups: without PDA, with PDA but PDA spontaneously closed (within 7 days) and persistent PDA. RESULT:We included 143 infants (Birth weight 1017±179 g, gestational age 30.8±2.7 weeks). Out of 60 babies with PDA, PDA failed to close spontaneously in first week in 32 (53.4 %) infants. PDA Doppler flow pattern on day 3 was found to be one of the most significant markers for future ductus. The highest frequency of growing pattern (37.5%) and pulsatile pattern (59.4%) was seen in persistence ductus group. PDA diameter and LA/Ao ratio were found strongly correlated with all other variables except E/A ratio. CONCLUSION:We noticed persistence of ductus in preterm infants had significant clinical and echocardiographic association. PDA doppler flow pattern on day 3 was found to be a significant marker for future behaviour of ductus. Significant correlation was found among individual functional echocardiographic parameters in babies with PDA. This would guide judicious treatment of PDA in preterm neonates.
