Correction to: Study protocol: baby-OSCAR Trial: Outcome after Selective early treatment for Closure of patent ductus ARteriosus in preterm babies, a multicentre, masked, randomised placebo-controlled parallel group trial

Correction to: BMC Pediatr 21, 100 (2021)

https://doi.org/10.1186/s12887-021-02558-7

Following the publication of the original article [1], it came to the authors’ attention that some text in the Open Label Treatment section deviated from the original wording of the protocol described.

The wording used in the original protocol is:

To consider open label (Rescue) treatment, both clinical AND echocardiographic criteria as described below should be met:

1. Clinical findings of inability to wean on ventilator (ventilated for at least 7 days continuously) AND inability to wean oxygen

   OR

   Persistent hypotension and/or pulmonary haemorrhage and/or signs of cardiac failure

2. Echocardiographic findings of a large PDA (PDA ≥ 2.0 mm with pulsatile flow)

   AND

   Hyperdynamic circulation and/or ductal steal (please refer to Baby-OSCAR ECHO workbook).

However, the section in question had used the following wording:

1. Inability to wean on ventilator (ventilated for at least 7 days continuously) and any of: inability to wean oxygen; persistent hypotension; pulmonary haemorrhage; signs of cardiac failure

   AND

2. Echocardiographic findings of a large PDA (≥ 2.0 mm with pulsatile flow)

   AND

3. Echocardiographic findings of hyperdynamic circulation or ductal steal (refer to Baby-OSCAR ECHO workbook).