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Updated: Jul 20, 2026
Manual Muscle Testing: A Method of Measuring Extremity Muscle Strength Applied to Critically Ill Patients
Published on: April 12, 2011
Acute neuromuscular weakness in the intensive care unit
Bobby Varkey Maramattom1, Eelco F M Wijdicks
1Department of Neurology, Lourdes Hospital, Kochi, Kerala, India.
Introduction:
Patients in the intensive care unit develop generalized weakness due to a number of factors. Neuromuscular weakness is a common cause of failure to wean from the ventilator and decreased limb movements. A rational approach to evaluation of weakness will help to identify most of the common causes of neuromuscular weakness in the intensive care unit.
Aims:
This review provides an analysis of neuromuscular weakness and a practical algorithm to assist in diagnostic evaluation.
Conclusions:
The most common acquired causes of weakness in the critically ill patient in the intensive care unit are critical illness polyneuropathy and critical illness myopathy. In the intensive care unit setting, electrophysiological studies, biopsies, and imaging studies are often necessary to complement the clinical impression.
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