{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T10:30:33Z","timestamp":1777890633047,"version":"3.51.4"},"reference-count":33,"publisher":"SAGE Publications","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["NPM"],"published-print":{"date-parts":[[2022,8,22]]},"abstract":"<jats:p>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\u22641250\u200agm 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\u00b1179\u200ag, gestational age 30.8\u00b12.7 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.<\/jats:p>","DOI":"10.3233\/npm-210930","type":"journal-article","created":{"date-parts":[[2022,5,17]],"date-time":"2022-05-17T13:10:18Z","timestamp":1652793018000},"page":"537-544","source":"Crossref","is-referenced-by-count":2,"title":["Clinical and echocardiographic characteristics associated with evolution of patent ductus arteriosus in preterm neonates: A prospective cohort study"],"prefix":"10.1177","volume":"15","author":[{"given":"A.K.","family":"Saha","sequence":"first","affiliation":[{"name":"Department of Neonatology, Institute of Post Graduate Medical Education & Research and SSKM Hospital, Kolkata, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.K.","family":"Sardar","sequence":"additional","affiliation":[{"name":"Department of Neonatology, Institute of Post Graduate Medical Education & Research and SSKM Hospital, Kolkata, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B.","family":"Majhi","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Bankura Sammilani Medical College and Hospital, Bankura, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.","family":"Chatterjee","sequence":"additional","affiliation":[{"name":"Department of Pharmacology, Institute of Post Graduate Medical Education & Research and SSKM Hospital, Kolkata, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","reference":[{"key":"10.3233\/NPM-210930_ref1","doi-asserted-by":"crossref","first-page":"270","DOI":"10.1016\/S0022-3476(94)70210-1","article-title":"Effects of patent ductus arteriosus on left ventricular output and organ blood flows in preterm infants with respiratory distress syndrome treated with surfactant","volume":"125","author":"Shimada","year":"1994","journal-title":"J 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