Treatment of Paraclinoid Aneurysms With Stent-Assisted Coiling Versus Flow Diversion Techniques: A Systematic Review and Meta-Analysis.

Background: The stent-assisted coiling (SAC) and flow-diverter stent (FDS) techniques are widely used in the endovascular treatment of paraclinoid aneurysms. This article compares the occlusion rate, periprocedural complications, and clinical outcomes of SAC and FDSs.

Methods: Between January 2010 and December 2020, a systematic search of electronic databases identified 2283 articles for screening.

Classification of anatomy and treatment approaches for aneurysms originating from the proximal of the A1 segment of the anterior cerebral artery in clinical settings.

Objective: To explore the spatial relationship between A1 segment proximal anterior cerebral artery aneurysms and their main trunks, classify them anatomically and develop targeted treatment strategies.

Methods: This single-center retrospective analysis involved 39 patients diagnosed with aneurysms originating from the proximal of A1 segment of the anterior cerebral artery (2014-2023). Classify the patient's aneurysm into 5 types based on the location of the neck involving the carrier artery and the spatial relationship and projection direction of the aneurysm body with the carrier artery, and outcomes from treatment methods were compared.

A computer aided measurement method for unstable pelvic fractures based on standardized radiographs.

Background: To set up a method for measuring radiographic displacement of unstable pelvic ring fractures based on standardized X-ray images and then test its reliability and validity using a software-based measurement technique.

Methods: Twenty-five patients that were diagnosed as AO/OTA type B or C pelvic fractures with unilateral pelvis fractured and dislocated were eligible for inclusion by a review of medical records in our clinical centre. Based on the input pelvic preoperative CT data, the standardized X-ray images, including inlet, outlet, and anterior-posterior (AP) radiographs, were simulated using Armira software (Visage Imaging GmbH, Berlin, Germany).

Highly enantioselective Michael addition promoted by a new diterpene-derived bifunctional thiourea catalyst: a doubly stereocontrolled approach to chiral succinimide derivatives.

A doubly stereocontrolled organocatalytic asymmetric Michael addition to the synthesis of substituted succinimides is described. Starting from aldehydes and maleimides, both enantiomers of the succinimides could be obtained in high to excellent yields (up to 98%) and enantioselectivities (up to 99%) when one of the two special chiral diterpene-derived bifunctional thioureas was individually used as a catalyst. Moreover, these catalysts can be efficiently used in large-scale catalytic synthesis with the same level of yield and enantioselectivity.