Category CCC

The LITFL Critical Care Compendium is a comprehensive collection of pages concisely covering the core topics and controversies of critical care.

CCC Critical Care compendium 340

Levels and Grades of Evidence

Different systems of categorising the quality of evidence, and individual studies, have been developed; primarily used in evidence-based clinical guidelines

CCC Critical Care compendium 340

Odds ratio

An odds ratio (OR) is a measure of association between an exposure and an outcome. The OR represents the odds that an outcome will occur given a particular exposure, compared to the odds of the outcome occurring in the absence of that exposure.

CCC Critical Care compendium 340

Power and Sample Size

It is unethical and a waste of time and resources to embark on a study when there is a high chance of a false negative result (Type II error). The commonest cause of this is having a sample size that is too small

CCC Critical Care compendium 340

Obesity and Trauma

Reviewed and revised 26 October 2016 OVERVIEW Obesity has significant implications for the assessment, management, and outcomes of trauma The relationship between obesity and negative outcome from injury has been controversial INJURY PATTERNS Obese patients tend to have lower overall…

CCC Critical Care compendium 340

Fat Embolism Syndrome

A syndrome caused by systemic embolisation of fat globules released into the circulation following trauma or surgical procedures

CCC Critical Care compendium 340

Facial Trauma

Those with facial injuries have a high chance of having other serious injuries: TBI; airway obstruction; pulmonary contusion; aspiration

CCC Critical Care compendium 340

Extremity arterial injury

Revised and reviewed 15 August 2015 OVERVIEW The extremities are the most common sites of arterial injuries in the civilian setting 50% to 60% of injuries occur in the femoral or popliteal arteries 30% in the brachial artery Extremity arterial…