MORPHOLOGİCAL AND CLİNİCAL ASPECTS OF ABERRANT SUBCLAVİAN ARTERY:SİNGLE CENTER MDCT BASED STUDY

Abstract

Objectives: Aberrant subclavian artery(ASA) anomalies are the most common aortic arch malformations. Incidence of these malformations increases with widespread use of computed tomography(CT). Our aim in this study was to investigate the relationship between ASA malformations, gender, age and reasons for admission, and Arcus Aorta(AA), ASA diameters and AA/ASA diameter ratios. Material and Methods: A total 74 patients with ASA were evaluated by Thorax CT retrospectively. Patients were divided into Aberrant right(ARSA) and left(ALSA) subclavian artery groups. Age, gender, reasons for application, ASA and AA diameters and AA/ASA ratios were evaluated between groups. Correlations of ASA and AA diameters with age were also evaluated. Results: 70(94.5%) of the patients had ARSA, 4(5.4%) of patients had ALSA. There was no statistical relationship between gender(p=0.394), age(p=0.443) and reasons for application(p=0.322) between groups. There was no statistical relationship between ASA diameter(p=0.127), AA diameter(p=0.728) and AA/ASA ratio(p=0.339) between groups. Weak positive correlation with age and diameter of AA(r=0.379,p=0.001) was observed, but no correlation with ASA diameter(p=0.059). Moderate positive correlation(r=0.573,p<0.001) was detected between diameters of AA and ASA. Conclusion: ASA malformations are the most common incidentally detected malformations with increased use of CT. These malformations are not related to age, gender and reasons for application.

Keywords

• Abnormalities,congenital,multidetector computed tomography,aberrant subclavian artery,aortic arch

ABERRAN SUBKLAVİAN ARTERİN MORFOLOJİK VE KLİNİK YÖNLERİ:TEK MERKEZLİ ÇKBT TABANLI ÇALIŞMA

Abstract

Amaç: Aberran subklavian arter(ASA) anomalileri en sık görülen aortik ark malformasyonlarıdır. Bilgisayarlı tomografi(BT) kullanımının artması ile bu malformasyonların görülme sıklığı artmaktadır. Bizim bu çalışmamızdaki amacımız ASA malformasyonlarının cinsiyet, yaş ve hastaneye başvuru nedenleri arasındaki ilişkiyi araştırmak, Arkus Aorta(AA), ASA çaplarını ve AA/ASA çap oranlarının arasındaki ilişkiyi değerlendirmekti. Yöntemler: ASA’sı olan 74 hastanın toraks BT’leri retrospektif olarak incelendi. Hastalar , Aberran sağ subklavian arter(ARSA)’sı olan ve Aberran sol subklavian arter(ALSA)’sı olanlar olarak ikiye ayrıldı. İki grup arasında yaş, cinsiyet, başvuru nedenleri , ASA ve AA çapları ve AA/ASA oranları değerlendirildi. Ayrıca ASA, AA çaplarının yaş ile korelasyonu değerlendirildi. Bulgular: Hastaların 70(%94.5)’inde ARSA, 4(%5.4)’ünde ALSA bulunuyordu. İki grup arasında cinsiyet(p=0.394), yaş(p=0.443) ve başvuru nedenleri(p=0.322) arasında istatistiksel ilişki bulunmuyordu. İki grup arasında ASA çapı(p=0.127), AA çapı(p=0.728) ve AA/ASA oranı(p=0.339) arasında istatistiksel ilişki saptanmadı. Yaş ile AA çapı ile zayıf pozitif korelasyon(r=0.379, p=0.001) izlenirken, ASA çapı ile korelasyon saptanmadı(p=0.059). AA çapı ile ASA çapı arasında orta şiddette pozitif korelasyon(r=0.573, p<0.001) saptandı. Sonuç: ASA malformasyonları BT kullanımının artmasıyla daha sık görülen, genellikle insidental olarak saptanan malformasyonlardır. Bu malformasyonların yaş, cinsiyet ve başvuru nedenleri ile ilişkisi bulunmamaktadır.

Keywords

• Anomaliler,doğumsal,çok kesitli bilgisayarlı tomografi,atipik subklavian arter,aortik ark

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