Abstract
Aims To study paracetamol (PCM) use as first line therapy for significant patent ductus arteriosus (sPDA) closure, stratified by echocardiography. Methods In this retrospective observational study, a prepublished score comprising PDA size and velocity, PDA:left pulmonary artery ratio, diastolic flow in main and LPA, LA:Ao ratio and left ventricular:aortic ratio were included for shunt severity. Successful closure was defined a priori as closure or ≥50% reduction in score. Comparisons were made between infants with sPDA who were treated and not treated. Results During November 2017–2018, 227 infants from 23 to 31+6 weeks’ gestational age (GA) were admitted; 50 (22%) infants were diagnosed with PDA, 32 treated with PCM, overall treatment rate of 32/227 (14%). Successful therapy was noted in 23/32 (72%) and was higher when treated at ≤7 days (80 versus 68%, p = .68), in infants >26 weeks GA (62.5 versus 100%, p = .07) and BW >1000 g (65.4 versus 100%, p = .14). Univariate analysis noted statistical significance only for GA. Eighteen infants were managed conservatively. Treated infants had a lower GA and BW, higher composite ECHO score (14.4 ± 0.5 versus 19 ± 0.4, p < .001). Conclusions Composite scoring helped reduce exposure, and focus more on infants with lower GA and BW with greater shunt severity.
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More From: The Journal of Maternal-Fetal & Neonatal Medicine
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