Publications by authors named "Malcolm A B Sim"

Background: Patients admitted to intensive care units (ICUs) frequently develop acute kidney injury (AKI). There is limited research comparing outcomes between oliguric and non-oliguric AKI in this population. This study aimed to investigate the short- and long-term outcomes in oliguric and non-oliguric AKI in intensive care patients; the specific outcomes assessed were mortality and major adverse kidney events.

View Article and Find Full Text PDF

Obesity is a worldwide health crisis and poses significant challenges in critical care. Many studies suggest an 'obesity paradox', in which obesity, defined by body mass index (BMI), is associated with better outcomes. However, the inability of BMI to discriminate between fat and muscle or between visceral adipose tissue and subcutaneous adipose tissue, limits its prediction of metabolic ill health.

View Article and Find Full Text PDF
Article Synopsis
  • Acute kidney injury (AKI) is common in ICU patients and can lead to long-term cardiovascular risks after hospital discharge.
  • A study involving 3994 ICU survivors found that 9.6% experienced major adverse cardiovascular events, with AKI significantly increasing the risk of these events and specifically myocardial injury.
  • The findings suggest that ICU patients with AKI may benefit from better cardiovascular protection strategies, highlighting the need for additional research on this population.
View Article and Find Full Text PDF

Background: Acute kidney disease (AKD) is a proposed definition for acute kidney injury (AKI) lasting 7 days or longer. Little has been reported regarding characteristics of patients with AKD and their short- and long-term outcomes. We describe the epidemiology and risk factors for AKD and outcomes following AKD.

View Article and Find Full Text PDF

Background: Critically ill patients with COVID-19 are at an increased risk of developing secondary bacterial infections. These are both difficult to diagnose and are associated with an increased mortality. Metabolomics may aid clinicians in diagnosing secondary bacterial infections in COVID-19 through identification and quantification of disease specific biomarkers, with the aim of identifying underlying causative microorganisms and directing antimicrobial therapy.

View Article and Find Full Text PDF

Background: Procedural sedation is a core skill of the emergency physician. Bolus administration of propofol is widely used in UK EDs. Titrated to an end point of sedation, it has a rapid effect but has been associated with adverse incidents.

View Article and Find Full Text PDF

The administration of propofol target-controlled infusion (TCI) for procedural sedation is standard in a range of hospital settings except for the Emergency Department (ED). Propofol TCI could be an alternative, safer way to provide procedural sedation in the ED compared with other methods of propofol administration. We compare the incidence of adverse events using propofol TCI compared with other methods of propofol administration.

View Article and Find Full Text PDF

Background: Procedural sedation is a core skill of the emergency physician. Bolus administration of propofol is widely utilised in UK emergency departments to provide procedural sedation. Bolus administration of propofol, titrated to an endpoint of sedation, has a rapid effect but can easily result in apnoea and loss of airway patency.

View Article and Find Full Text PDF