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  • Title: [Anomalies of the inferior vena cava in patients treated with surgical vascular procedures in the aorto iliac area. Report of 2 cases and review of the literature].
    Author: Rispoli P, Ortensio M, Cassatella R, Conforti M, Moniaci D, Varetto G, Zan S, Raso AM.
    Journal: Minerva Cardioangiol; 2001 Apr; 49(2):141-6. PubMed ID: 11292959.
    Abstract:
    Two cases of left-sided inferior vena cava observed in a patient affected by Leriche syndrome and the other affected by aortic abdominal aneurysm (AAA) are presented. This very rare congenital malformation (0.2-0.5) was not recognized by the duplex scanner performed preoperatively probably because of the low level of suspicion carried on by an experienced operator. Angio-CT e angio-MR which would have surely showed the anomaly, were not done because in the absence of an aneurysmal disease or other abdominal situations, these investigations were not required before operation. An angio-CT was performed routinely to the patient affected by AAA and so the left-sided vena cava was observed before operation; and then an abdominal arteriography and an ilio-caval venography were required which documented the vena cava anomaly. Surgical interventions didn t have complications. In the case of Leriche syndrome an aorto-bifemoral bypass was performed, and in the case of abdominal AAA an aortic left-iliac right-femoral bypass. Preoperative unrecognizing of this venous malformation is very hazardous mostly in terms of uncontrollable intraoperative hemorrhages. Ultrasonographic diagnosis with duplex scanner has to be very accurate in order to observe not only arterial diseases but also the possible venous anomalies of the abdominal district.
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