Publications by authors named "Maria Trinidad Villegas Herrera"

Background: The tumor response of cirrhotic patients with hepatocellular carcinoma (HCC) undergoing locoregional treatment (TLR) before liver transplantation can be evaluated using different imaging tests. The aim of this study was to compare the correlation of radiological response evaluated by magnetic resonance imaging (MRI) vs computed tomography (CT) vs ultrasound with histopathological findings.

Methods: A retrospective single-center study was performed.

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Background: The limitation of ischemia times, which damages the organs and impacts transplant outcomes, is a drawback of controlled donation after circulatory death.

Methods: The aim of the study was to analyze the influence of preservation and ischemia times on overall survival and both censured graft survival and overall graft survival. This was an observational and retrospective study of patients undergoing liver transplantation with grafts from controlled donation after circulatory death between November 2013 and November 2022.

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Unlabelled: Controversy surrounds the suitability of simultaneous liver-kidney transplant (SLKT) when compared with sequential transplant. Pretransplant renal failure is a post-transplant mortality predictor, and studies demonstrate worse functioning and lower survival of the renal graft when compared with kidney transplant alone (KTA).

Background: This study compares renal function in patients with SLKT and those who received the contralateral kidney from the same donor.

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Article Synopsis
  • The study analyzed the impact of new direct-acting antivirals (DAA) on liver transplantation (LT) for patients with hepatitis C virus (HCV) from January 2016 to August 2020.
  • Out of 156 LTs, 33 (22%) were for HCV-infected patients, showing a 16% decrease compared to previous treatments with interferon/ribavirin, and the majority were due to hepatocellular carcinoma (HCC) rather than decompensated cirrhosis (DC).
  • After DAA treatment, patients achieved a sustained viral response, with no significant differences in survival rates or post-surgery complications between the groups, indicating the need for further research with
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Article Synopsis
  • Cholangiocarcinoma is a serious liver cancer with a low survival rate, and surgery is currently the only treatment option that can cure it.
  • Liver transplantation (LT) is recognized as the best treatment for another type of liver cancer, hepatocellular carcinoma, but there's potential for LT to help patients with intrahepatic cholangiocarcinoma (iCC).
  • Research from a center revealed a case of successful incidental LT in an iCC patient with a 10-year survival, suggesting that updates to LT criteria could improve treatment options as donor availability increases.
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Liver grafts from donors after cardiac death (DCD) involve a risk of failure owing to warm ischemia, among other factors. To minimize this important issue, new systems like normothermic regional perfusion have arisen. We report an observational and unicentric study focused on the results of liver transplantation after DCD, performing normothermic regional perfusion using extracorporeal membrane oxygenation.

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Liver transplantation is an effective treatment for many liver diseases, with a 5-year survival of about 70 %. However, development of de novo malignancies in these immunocompromised patients is becoming a frequent complication medium term. The annual risk of developing a malignant tumor after a solid organ transplant is 2% .

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Complications resulting from gallstones left in the peritoneal cavity are most often reported after laparoscopic treatment of cholelitiasis. Gallstones are frequently dropped in the posterior subhepatic space, which can lead to the development of abscesses that usually require laparotomy for extraction of the stones. We present a novel technique for treating collections associated with dropped gallstones, using retroperitoneoscopy with two 10-mm ports after ultrasound localization of the abscess.

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