the manuscript, references should be cited using Arabic numbers in parentheses. The reference styles for different types of publications are presented in the following examples.

Aortic dissection can occur in pregnancy or during the postpartum period without pre-existing disease and it is a rare but potentially life-threatening event. Herein, we present a young woman without Marfan’s syndrome who developed a postpartum ascending aortic dissection 5 days after cesarean section.

SummaryAimTo determine whether concomitant surgery is a predictor of mortality in patients undergoing surgery for ascending aortic aneursym.MethodsNinety-nine patients who underwent ascending aortic aneursym surgery between January 2010 and January 2015 were included in this study. Nineteen patients underwent ascending aortic replacement (RAA) only, 36 underwent aortic valve replacement (AVR) and RAA, 25 underwent coronary artery bypass grafting (CABG) and RAA, 11 underwent the Bentall procedure, and eight underwent AVR, CABG and RAA.ResultsDepending on the concomitant surgery performed with RAA, the mortality risk increased 2.25-fold for AVR, 4.5-fold for CABG, 10.8-fold for AVR + CABG and four-fold for the Bentall procedure, compared with RAA alone.ConclusionConcomitant cardiac surgery increased the mortality risk in patients undergoing RAA, but the difference was not statisticaly significant. Based on these study results, patients undergoing cardiac surgery, with a pre-operative ascending aortic diameter of over 45 mm, should undergo concomitant RAA.

Different cannulation sites (e.g., femoral artery, axillary artery, left ventricular apex, and ascending aorta) and perfusion techniques (anterograde or retrograde) have been used for treating acute type A aortic dissection. The patient's pathology and status determine the cannulation site. We present our experience with ascending aortic cannulation for acute type A aortic dissection.Eur Res J 2016;2(1):74-76

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