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Research Article

Early Post-Operative Doppler Ultrasound as A Predictive Factor for Vascular Complications after Liver Transplantation

Marcela P Cohen, Gustavo G Mendes, Almir GV Bitencourt*, Fernanda GV Caggiano, Marcony Queiroz-Andrade, Rubens Chojniak and Eduardo A Fonseca
ACCamargo Cancer Center, R Prof Antonio Prudente, São Paulo, Brazil
Corresponding Author : Almir GV Bitencourt
A C Camargo Cancer Center
R Prof Antonio Prudente
São Paulo-09015-010, Brazil
Tel: +5511985671045
E-mail: almirgvb@yahoo.com.br
Received: June 15, 2015 Accepted: July 13, 2015 Published: July 16, 2015
Citation: Cohen MP, Mendes GG, Bitencourt AGV, Caggiano FGV, Queiroz-Andrade M, et al. (2015) Early Post-Operative Doppler Ultrasound as A Predictive Factor for Vascular Complications after Liver Transplantation. OMICS J Radiol 4:194. doi:10.4172/2167-7964.1000194
Copyright: © 2015 Cohen MP, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Objective: To evaluate the diagnostic accuracy of early postoperative Doppler ultrasound (DUS) for vascular thrombosis after liver transplantation and to evaluate its impact on clinical outcome. Materials and

Methods: This retrospective study examined 219 patients who underwent liver transplantation at a single reference institution. The results of early postoperative DUS were compared with angiographic, clinical and surgical data through a medical records review. The sensitivity and specificity of DUS for diagnosing vascular complications in the hepatic arteries and portal vein were calculated.

Results: DUS diagnosed vascular complications in 23 out of 210 included patients (10.9%). For the diagnosis of arterial and portal vein complications (stenosis/thrombosis), DUS showed respectively sensitivity of 75% and 90.9% and specificities of 96% and 100%. Overall mortality rate was 10.5% and patients who presented vascular alterations at early postoperative DUS presented a higher mortality (21.7%) rate than those with normal DUS (9.0%), although with no statistically significant difference (p=0.074).

Conclusion: DUS is a valuable tool for early vascular complication diagnosis, with high specificit

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