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  1. Sohair Bshara Swaid1,
  2. Amir Vardi2,
  3. Amichai Perlman1,
  4. Ilan Matok1
  1. 1Division of Clinical Pharmacy, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem
  2. 2Cardiac Pediatric Intensive Care, Safra Children's Hospital, Sheba Medical Center and Sakler's Faculty of Medicine, Tel-Aviv University


Background Alprostadil is a prostaglandin used to maintain patent ductus arteriosus in neonates with ductus arteriosus dependent congenital heart malformations. Alprostadil administration results in fever in ∼14% of treated neonates. The occurrence of fever in this setting, often leads to extensive investigations to identify the source of fever, as well as to empiric antibiotic therapy and the postponement of cardiac surgery. These measures can lead to several neonatal complications.

Aim To identify clinical and laboratory criteria that can help determine the likelihood that fever during alprostadil therapy is due to infection.

Methods Using a case control study design, we evaluated neonates who were admitted to the pediatric cardiac intensive care department between 2009 and 2014, and who developed fever during alprostadil treatment. Neonates with infection and without were compared to identify early clinical symptoms and biomarkers that can serve as predictors of infection. Analyses included univariate and multivariate methods.

Results Our study included 124 neonates. Seventy neonates experienced infection (median age 9 days (IQR 4–15.2)) and fifty-four did not (median age 5 days (IQR 2–11)). Factors preceding fever and predicting infection included: White blood cell count (WBC) above 10000/microL (HR=1.97, 95% CI 1.02–3.74), or platelet count above 440 K/microL (HR=2.27, 95%CI=1.32–5.23). Increases in WBC or lactate, before fever onset, were also associated with infection.

Conclusions Elevations in WBC, platelets and lactate before fever onset were associated with infection. These results may assist in decisions regarding cardiac surgery timing in neonates treated with alprostadil.

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