ABC | Volume 113, Nº2, August 2019

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Assessment of right ventricular function by isovolumic contraction acceleration before and after percutaneous closure of atrial septal defects: a preliminary study. Anadolu Kardiyol Derg. 2014;14(5):417-21. 21. AğaçMT, Akyüz AR, Acar Z, Akdemir R, Korkmaz L, Kırış A, et al. Evaluation of right ventricular function in early period following transcatheter closure of atrial septal defect. Echocardiography. 2012;29(3):358–62. 22. Joshi KR, Kabirdas D, Romero-Corral A, Shah M, Figueredo VM, Pressman GS. Clinical significance of a presystolic wave on Doppler examination of the left ventricular outflow tract. Am J Cardiol. 2014;114(10):1599-602. References Potential Conflict of Interest No potential conflict of interest relevant to this article was reported. Sources of Funding There were no external funding sources for this study. Study Association This study is not associatedwith any thesis or dissertationwork. Ethics approval and consent to participate This study was approved by the Ethics Committee of the Trabzon Kanuni Education and Research Hospital under the protocol number 2017-64. All the procedures in this study were in accordance with the 1975 Helsinki Declaration, updated in 2013. Informed consent was obtained from all participants included in the study. 214