Related Experiment Video
Updated: Feb 6, 2026

An Educational Video Demonstration of How to Prone a Critically Ill Intubated Patient
Published on: November 30, 2022
An analysis of emergency tracheal intubations in critically ill patients by critical care trainees
Nishkantha Arulkumaran1, Charles S McLaren2, Kailash Arulkumaran3
1General Intensive Care Unit, St George's University Hospitals NHS Foundation Trust, London, UK.
Introduction:
We evaluated intensive care medicine trainees' practice of emergency intubations in the United Kingdom.
Methods:
Retrospective analysis of 881 in-hospital emergency intubations over a three-year period using an online trainee logbook.
Results:
Emergency intubations out-of-hours were less frequent than in-hours, both on weekdays and weekends. Complications occurred in 9% of cases, with no association with time of day/day of week (p = 0.860). Complications were associated with higher Cormack and Lehane grades (p=0.004) and number of intubation attempts (p < 0.001), but not American Society of Anesthesiologist grade. Capnography usage was ≥99% in all locations except in wards (85%; p = 0.001). Ward patients were the oldest (p < 0.001), had higher American Society of Anesthesiologist grades (p < 0.001) and lowest Glasgow Coma Scale (p < 0.001).
Conclusions:
Complications of intubations are associated with higher Cormack and Lehane grades and number of attempts, but not time of day/day of week. The uptake of capnography is reassuring, although there is scope for improvement on the ward.
More Related Videos
Related Concept Videos
Critical Region, Critical Values and Significance Level
In hypothesis testing, a sample statistic is converted to a test statistic using z, t, or chi-square distribution. A critical region is an area under the curve in probability distributions demarcated by the critical value. When the test statistic falls in this region, it suggests that the null hypothesis must be rejected. As this region contains all those values of the...
Critical Values
Critical Thinking I
Critical Thinking II
Critical Thinking
Colleges and universities are...
Criticisms of the Evolutionary Perspective
Evolutionary psychology provides one explanation for these findings, suggesting...

