Truncus arteriosus communis: report of three cases and review of literature.

ABSTRACT: Background:Truncus arteriosus communis (TAC) is a congenital heart defect in which the physiologic arterial common trunk was not divided into aorta and pulmonary artery trunk. Objectives:In this paper, we report on three observed cases from which we looked for (in conjunction with literature review) the different causes of TAC many of which have genetic origins. Methods:We collected three clinical files of fetuses having a TAC. Two of them were examinated after a medical termination of pregnancy motivated by severe cardiopathy. The malformation had been diagnosed based on different techniques: echocardiography, skeletal radiography, arteriography, fetal autopsy, karyotype and fluorescence in situ hybridization (FISH). Results:Imaging and fetopathological examination revealed the presence of TAC type 3 and 4 in the Van Praaghs classification. FISH analysis showed a 22q11.2 deletion in one fetus in favour of Digeorge syndrome. The karyotype analysis performed in two cases was normal. Conclusion:Truncus arteriosus is a rare pathology caused by numerous etiologies from which many of them have genetic origin. This malformation can be diagnosed early during prenatal period. Postmortem fetopathological examination allows a better diagnosis approach and eventually a genetic counseling in recurrent cases such as case of consanguinity.

SUBMITTER: Poaty H 

PROVIDER: S-EPMC6016971 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature