BACKGROUND: OBJECTIVES: SEARCH STRATEGY: We searched the Cochrane Controlled Trials Register, PubMed and EMBASE. The primary author and experts in the field were contacted. SELECTION CRITERIA: Randomised or quasi-randomised controlled trials. Infants of less than 7 days of age, born after 37 or more weeks of gestation with the clinical picture of transient tachypnea of the newborn. Intravenous, oral or nebulized furosemide compared to placebo or no diuretic in the first 7 days. DATA COLLECTION AND ANALYSIS: Two reviewers assessed trial quality in each potentially eligible manuscript and two reviewers extracted data. MAIN RESULTS: Searching revealed only one randomised trial which was methodologically sound. This recruited 50 infants with transient tachypnea. Infants were randomised to receive oral furosemide 2 mg/kg followed by 1 mg/kg 12 hours later, or placebo. Weight loss in the first 24 hours was greater in the furosemide treated group but there was no evidence of a difference between the groups in duration of tachypnea or severity of symptoms or length of hospitalization. The study was methodologically satisfactory. REVIEWER'S CONCLUSIONS:
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