Publications by authors named "Tayseer M Shamaa"

Unlabelled: It has been reported that patients hospitalized outside regular working hours have worse outcomes. This study aims to compare outcomes following liver transplantation (LT) performed during public holidays and nonholidays.

Methods: We analyzed the United Network for Organ Sharing registry data for 55 200 adult patients who underwent an LT between 2010 and 2019.

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Background: Cold climate is known to affect the frequency and attributable mortality of various illnesses. This study aims to evaluate the effect of climate among regions on liver transplant (LT) outcomes.

Methods: We analyzed data from the United Network for Organ Sharing registry for 98,517 adult patients (aged ≥ 18 years) who were listed for LT between 2010 and 2019.

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Unlabelled: Liver allocation in the United States was updated on February 4, 2020, by introducing the acuity circle (AC)-based model. This study evaluated the early effects of the AC-based allocation on waitlist outcomes.

Methods: Adult liver transplant (LT) candidates listed between January 1, 2019, and September 30, 2021, were assessed.

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Article Synopsis
  • Combined liver and lung transplantation (CLLT) is performed on patients with severe liver and lung disease, and ex-situ normothermic machine perfusion (NMP) has been applied for lung preservation during these procedures.
  • A study from 2019 to 2020 involved four CLLT surgeries, where the liver was preserved using NMP for an average of 413 minutes before transplantation, with lung transplants done first.
  • All patients showed positive outcomes, remaining alive and healthy over a median follow-up of 15 months, indicating that normothermic liver preservation is a safe technique that can enhance the viability of the liver during these complex surgeries.
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Primary sclerosing cholangitis (PSC) is a progressive, cholestatic liver disease, and liver transplantation (LT) is considered the only therapeutic option for patients with end-stage liver disease secondary to PSC. Intestinal obstruction in adults after LT surgery is a rare complication with diverse clinical presentations. The most common etiology is intestinal adhesions, but this can also result from other rare causes such as enterolith.

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