Tankisi, A;
Pedersen, TH;
Bostock, H;
Z'Graggen, WJ;
Larsen, LH;
Meldgaard, M;
Elkmann, T;
(2021)
Early detection of evolving critical illness myopathy with muscle velocity recovery cycles.
Clinical Neurophysiology
, 132
(6)
pp. 1347-1357.
10.1016/j.clinph.2021.01.017.
Preview |
Text
Bostock_Tankisi et al Early detection of CIM .pdf - Accepted Version Download (1MB) | Preview |
Abstract
OBJECTIVE: To investigate the sensitivity of muscle velocity recovery cycles (MVRCs) for detecting altered membrane properties in critically ill patients, and to compare this to conventional nerve conduction studies (NCS) and quantitative electromyography (qEMG). METHODS: Twenty-four patients with intensive care unit acquired weakness (ICUAW) and 34 healthy subjects were prospectively recruited. In addition to NCS (median, ulnar, peroneal, tibial and sural nerves) and qEMG (biceps brachii, vastus medialis and anterior tibial muscles), MVRCs with frequency ramp were recorded from anterior tibial muscle. RESULTS: MVRC and frequency ramp parameters showed abnormal muscle fiber membrane properties with up to 100% sensitivity and specificity. qEMG showed myopathy in 15 patients (63%) while polyneuropathy was seen in 3 (13%). Decreased compound muscle action potential (CMAP) amplitude (up to 58%) and absent F-waves (up to 75%) were frequent, but long duration CMAPs were only seen in one patient with severe myopathy. CONCLUSIONS: Altered muscle fiber membrane properties can be detected in patients with ICUAW not yet fulfilling diagnostic criteria for critical illness myopathy (CIM). MVRCs may therefore serve as a tool for early detection of evolving CIM. SIGNIFICANCE: CIM is often under-recognized by intensivists, and large-scale longitudinal studies are needed to determine its incidence and pathogenesis.
| Type: | Article |
|---|---|
| Title: | Early detection of evolving critical illness myopathy with muscle velocity recovery cycles |
| Location: | Netherlands |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.clinph.2021.01.017 |
| Publisher version: | https://doi.org/10.1016/j.clinph.2021.01.017 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Critical illness myopathy, Critical illness polyneuropathy, Electromyography, Intensive care unit acquired weakness, Muscle velocity recovery cycles, Nerve conduction studies |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10124495 |
Archive Staff Only
 |
View Item |
