A Comparison of Cough Assistance Techniques in Patients with Respiratory Muscle Weakness
Yonsei Medical Journal
;
: 1488-1493, 2016.
Article
in English
| WPRIM
| ID: wpr-143158
ABSTRACT
PURPOSE:
To assess the ability of a mechanical in-exsufflator (MI-E), either alone or in combination with manual thrust, to augment cough in patients with neuromuscular disease (NMD) and respiratory muscle dysfunction. MATERIALS ANDMETHODS:
For this randomized crossover single-center controlled trial, patients with noninvasive ventilator-dependent NMD were recruited. The primary outcome was peak cough flow (PCF), which was measured in each patient after a cough that was unassisted, manually assisted following a maximum insufflation capacity (MIC) maneuver, assisted by MI-E, or assisted by manual thrust plus MI-E. The cough augmentation techniques were provided in random order. PCF was measured using a new device, the Cough Aid.RESULTS:
All 40 enrolled participants (37 males, three females; average age, 20.9±7.2 years) completed the study. The mean (standard deviation) PCFs in the unassisted, manually assisted following an MIC maneuver, MI-E-assisted, and manual thrust plus MI-E-assisted conditions were 95.7 (40.5), 155.9 (53.1), 177.2 (33.9), and 202.4 (46.6) L/min, respectively. All three interventions significantly improved PCF. However, manual assistance following an MIC maneuver was significantly less effective than MI-E alone. Manual thrust plus MI-E was significantly more effective than both of these interventions.CONCLUSION:
In patients with NMD and respiratory muscle dysfunction, MI-E alone was more effective than manual assistance following an MIC maneuver. However, MI-E used in conjunction with manual thrust improved PCF even further.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Respiratory Muscles
/
Insufflation
/
Cough
/
Neuromuscular Diseases
Type of study:
Controlled clinical trial
Limits:
Female
/
Humans
/
Male
Language:
English
Journal:
Yonsei Medical Journal
Year:
2016
Type:
Article
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