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Electric Muscle Stimulation for Patients With Chronic Respiratory Failure

This study is currently recruiting participants. (see Contacts and Locations)
Verified April 2015 by Mackay Memorial Hospital
Information provided by (Responsible Party):
Kuang-Hua Cheng, Mackay Memorial Hospital Identifier:
First received: August 25, 2013
Last updated: April 10, 2015
Last verified: April 2015

Background: After mechanical ventilation, 5-20% of patients with acute respiratory failure would depend on ventilator support more than 14 days because of critical-illness weakness and their underlying diseases such as heart failure and chronic obstructive pulmonary disease.

Hypothesis: Electric muscle stimulation(EMS) will improve their muscle strength and shorten their ventilator days.

Design: Randomized controlled trial. Adult patients with mechanical ventilation more than 14 days are eligible. EMS would be applied in experimental group 32 minutes/day on their bilateral thigh.

Condition Intervention
Chronic Respiratory Failure
Critical Illness Myopathy
Device: EMS

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Effect of Electric Muscle Stimulation on Patients With Chronic Respiratory Failure

Resource links provided by NLM:

Further study details as provided by Mackay Memorial Hospital:

Primary Outcome Measures:
  • ventilator-free days [ Time Frame: 28 days ] [ Designated as safety issue: No ]
    the number of days between successful weaning from mechanical ventilation and day 28 after study enrollment

Secondary Outcome Measures:
  • Grip power [ Time Frame: 7 days ] [ Designated as safety issue: No ]
    Weekly improvement of both hand grip muscle power in kilogram(Kg)

Estimated Enrollment: 100
Study Start Date: August 2013
Estimated Study Completion Date: December 2015
Estimated Primary Completion Date: November 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Electric muscle stimulation(EMS)
EMS:use programmed middle frequency electric stimulation device(HELEX 573)for both quadriceps stimulation, 32 minutes per day, 5 time per week.
Device: EMS
HELEX 573 : strength aggravation mode with middle frequency carrier(1500Hz), minimal voltage for visible muscle contraction(maximum output is 75mA) , 32 minutes per day.
No Intervention: Control
Patients with routine passive rehabilitation program.


Ages Eligible for Study:   20 Years to 90 Years   (Adult, Senior)
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Adult patient required mechanical ventilation more than 14 days
  • No ability for active endurance exercise because of poor consciousness or limb weakness.

Exclusion Criteria:

  • Pregnant women
  • Limb wound/infection interfered with electric pad application
  • Recent acute myocardial infarction or life-threatening arrhythmia
  • Uncontrolled epilepsy
  • Dying patients without attempt of ventilator weaning
  • Absence of respiratory drive
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01930643

Contact: Kuang H Cheng, Msc
Contact: Gwo C Hu, Phd

Mackay Memorial Hospital Recruiting
Taipei, Taiwan
Contact: Gwo C Hu    +886-2-2543-3535      
Sponsors and Collaborators
Mackay Memorial Hospital
Principal Investigator: Kuang H Cheng, MD Mackay Memorial Hospital
  More Information

Responsible Party: Kuang-Hua Cheng, Visiting staff, Mackay Memorial Hospital Identifier: NCT01930643     History of Changes
Other Study ID Numbers: 13MMHIS070 
Study First Received: August 25, 2013
Last Updated: April 10, 2015
Health Authority: Taiwan: Ministry of Health and Welfare

Keywords provided by Mackay Memorial Hospital:
Electric muscle stimulation
mechanical ventilation
chronic respiratory failure

Additional relevant MeSH terms:
Respiratory Insufficiency
Critical Illness
Respiration Disorders
Respiratory Tract Diseases
Disease Attributes
Pathologic Processes processed this record on October 26, 2016