Reversing Neuromuscular Blockade without Nerve Stimulator Guidance in a Postsurgical ICU-An Observational Study.

Area of Science:

• Anesthesiology
• Critical Care Medicine

Background:

• Residual neuromuscular blockade (RNB) is a common complication after surgery.
• It can lead to adverse respiratory events and prolonged mechanical ventilation.
• Assessing RNB is essential for safe extubation decisions.

Purpose of the Study:

• To investigate the consequences of not using RNB analysis to guide neuromuscular blockade reversal in postcardiac surgical ICU patients.
• To determine if extubation without considering RNB assessment results leads to residual weakness.

Main Methods:

• Prospective, single-center study of 104 postcardiac surgical ICU patients.
• RNB evaluation performed before and after reversal (neostigmine/glycopyrrolate).
• Patients extubated based on clinical parameters, not RNB results.

Main Results:

• 11% of patients had not achieved a Train-of-Four (TOF) count of four before reversal.
• 21% of evaluated patients had a TOF ratio ≤ 90% before extubation.
• 3 patients required unplanned respiratory support postextubation, one with evident weakness.

Conclusions:

• Extubating patients without considering RNB analysis may lead to unrecognized residual neuromuscular weakness.
• ICU-level care might mitigate some consequences of residual weakness.
• Routine RNB assessment is recommended to ensure safe extubation.