Publications by authors named "A Vaisman"

Hypothyroidism is very common worldwide. It is known to be associated with frailty which, in turn, is associated with increased morbidity and mortality in the elderly. Low ALT blood activity is an established marker for sarcopenia and frailty.

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Aim: Describe the epidemiology and mortality in hip fractures and their relationship with surgical latency.

Methods: Retrospective study of patients with hip fracture, operated in a center between 2009-2016. Non-operated patients, periprosthetic fractures, and stress fractures were excluded.

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Article Synopsis
  • Late identification of pulmonary embolism (PE), a serious condition affecting lung arteries, poses significant challenges in healthcare, prompting efforts to improve early diagnosis using existing medical record data.
  • The study developed machine learning models by analyzing data from over 55,000 patients, focusing on demographics and medical history to predict PE risk during hospital admission.
  • The models achieved an 80% accuracy in identifying high-risk patients, revealing specific subgroups with a notably higher prevalence of PE, which can help clinicians better target interventions and improve early detection.
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The Hoveyda-Grubbs catalyst (, M720 Umicore) is among the most widely used catalysts in olefin metathesis reactions. Given the usefulness of and the great interest in developing latent olefin metathesis catalysts for numerous applications, we developed a method to introduce phosphite molecules as ancillary ligands into the precatalyst framework. This modification alters the geometry of the complex from an active -dichloro form to a latent -dichloro species.

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Objective: Assess the prevalence of self-reported burnout and identify risk and protective factors based on demographic and life quality aspects, among Latin American orthopaedic surgeons.

Methods: This study employed a cross-sectional analytical design. An original design survey was developed using multiple-choice and Likert-scale questions to gather self-reported burnout, demographic, work-related, social, personal, and mood-related data.

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