The Anatomic Characteristics Of Aortic Sinus And Relevence With Arrhythmias Using Multislice Spiral Computer Tomography

Objective: The aim is to assess the anatomic characteristics of aortic sinus and the relevance with arrhythmias by Multislice spiral computed tomography (MSCT).Methods: The patients from First affiliated hospital of DALIAN medical university during 2010.6-2010.11 who underwent coronary MSCT were involved in the present study. Retrospective analysis of the MSCT. The criteria of exclusion is as follows: structural heart disease, such as hypertension, diabetes, iodine contrast medium allergy, PCI/ CABG operation, pregnant women, non-sinus rhythm or respiration mismatching the examination. We analysed all of patients video document about aortic root, aortic sinus, and measured the distance between aortic sinus and other tissue, we used spss17.0 to analyse this results.Result: One hundred patients (male 50, average age 56.4±10.6) were enrolled in the present study. Through MSCT, we found: (1) There were connections between the aortic sinus and atrium or ventricle tissue; (2) 48 patients with the connections between noncoronary sinus(NS) and right atrium(RA), 23 patients with connections between NS and left atrium(LA), 20 patients with connections between right coronary sinus (RS) and RA, 25 patients with connections betweenRS and right ventricle(RV) connection, 23 patients with connections between RS and left ventricle(LV) connection; 16 patients with connections between left coronary sinus(LS) and RV connection, 20 patients with connections between LS and RA connection, 45 patients with connections between LS and LV connection, we don't find the noncoronary sinus has connection with ventricle.(2) The average connection between NS and RA is significantly shorter than NS-LA connection (1.77±0.85mm vs 2.22±0.92mm,P<0.05). The average connection between LS-RV connection is longer than the connection between LS-LV, the distance between LS-LA. (2.66±0.57mm vs 2.05±0.91mm,1.90±0.45mm,P<0.05). The average connection between RS -RV is significantly shorter than the average connection between RS-RA, the average connection between RS-LV.(1.85±0.93mm vs 2.16±0.99mm,2.01±0.77mm,P<0.05),but there is no significant difference between the right coronary sinus (RS) and right ventricle, the distance between right coronary sinus and left ventricle. (3) All patients underwent cardic color doppler ultrasound examinations. Analyse the left-right diameter of both atriums, and investigate the relevance with the connections between aortic sinus and atrium /ventricle. We apply the Pearon to analyse the relativity of the distance and left-right diameter. Every groups don't have statistical significance.Conclusion: There are connections between aortic sinus and atrium/ventricule. The connections of NS-RA and LS-LV are common. These connections may account for ablation the origination of arrhythmia.