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Article History

Received: 1 September 2018

Accepted: 31 January 2019

First Online: 19 February 2019

Ethics approval and consent to participate

: The current randomized, double blinded, placebo-controlled study was conducted on 50 acyanotic pediatric patients aged from 2 to 15 years who underwent elective cardiac catheterization for haemodynamic study of their congenital heart disease (CHD) in cardiovascular and thoracic surgery academy at Ain Shams university hospitals through the period from July 2015 to July 2016 after obtaining approval of research ethical committee (REC) of Faculty of medicine - Ain Shams University (FMASU) at june 2015 with reference number of FMASU 3274/2015 and patients’ guardian written informed consents for acceptance of participation in the study.

: Not applicable.

: The authors declare that they have no competing interests.

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