An analysis of unplanned return to the operating room following deceased donor kidney transplantation.

Introduction: This study was undertaken to characterize unplanned return to the OR following kidney transplantation(KT).

Methods: All patients undergoing KT at a single center from 1/2015 through 11/2017 were evaluated. The primary endpoint was unplanned return to the OR within 90 days.

The role of FDG-PET in detecting rejection after liver transplantation.

Background: The activation and increased metabolic activity of T cells in acute cellular rejection could allow fluoro-2-deoxyglucose positron emission tomography to be utilized for detection of acute cellular rejection. The objective of this study was to evaluate the effectiveness of fluoro-2-deoxyglucose positron emission tomography in detecting acute cellular rejection in the clinical setting.

Methods: Fluoro-2-deoxyglucose positron emission tomography studies were performed on 88 orthotopic liver transplant patients at 7 and 17 days postoperatively (first positron emission tomography and second positron emission tomography, respectively).

Computational studies on the mechanism of the gold(I)-catalysed rearrangement of cyclopropenes.

Density functional theory calculations have been employed to investigate the mechanism of gold(I)-catalysed rearrangements of cyclopropenes. Product formation is controlled by the initial ring-opening step which results in the formation of a gold-stabilised carbocation/gold carbene intermediate. With 3-phenylcyclopropene-3-methylcarboxylate, the preferred intermediate allows cyclisation via nucleophilic attack of the carbonyl group and hence butenolide formation.