title: [CHARACTERISTICS OF SURFACE ELECTROMYOGRAPHY AND ACID-BASE BALANCE IN PATIENTS WITH INTENSIVE CARE UNIT-ACQUIRED WEAKNESS].
abstract: OBJECTIVE
  The study was aimed to search for correlation between parameters of surface electromyography and acid-base balance (ABB) in patients with intensive care unit-acquired weakness (ICUAW, n = 29, duration 7-180 days).
  
  
  METHODS
  The linear and nonlinear parameters of sEMG (mean frequency of spectrum, fractal and correlation dimension, correlation entropy) and ABB and their correlation coefficient with bed rest (BR) and duration of mechanical ventilation (MT) were computed.
  
  
  RESULTS
  Here we report that in first 40 days sEMG parameters were indicative of the neurogenic process in the skeletal muscle, while within 41-100 days signs of the myogenic pathology were documented. The ABB parameters statistically signIficantly correlated with BR and MV duration.
  
  
  CONCLUSIONS
  ICUAW exerts effect on the skeletal muscle. Within first 40 days this effect is actuated in a form of neuropathy, while further it has signs of myopathy. We argue that MV duration appear to be a pathogenic factor in these modifications.
authors.forename: A Yu
authors.initials: AY
authors.lastname: Mejgal
authors.forename: O G
authors.initials: OG
authors.lastname: Tret'jakova
authors.forename: A P
authors.initials: AP
authors.lastname: Spasova
mesh_terms: D000136:Acid-Base Equilibrium; D000328:Adult; D004576:Electromyography; D005260:Female; D006801:Humans; D007362:Intensive Care Units; D008297:Male; D008875:Middle Aged; D018908:Muscle Weakness / Q000175:diagnosis* / Q000209:etiology / Q000378:metabolism; D018482:Muscle, Skeletal / Q000503:physiopathology*; D012121:Respiration, Artificial / Q000009:adverse effects*; D013997:Time Factors