Abdominal Muscle Thickness in Mechanically Ventilated Patients

Abdominal Muscle Thickness in Mechanically Ventilated Patients During Spontaneous Breathing Trials

The purpose of the study is to determine to what extent the abdominal muscles contribute to airway pressure, in order to investigate the correlation between muscles weakness and extubation outcome in mechanically ventilated patients. In addition the reliability of the sonographic measurements will be assessed.

The purpose of the study is to determine to what extent the abdominal muscles contribute to airway pressure, in order to investigate the correlation between muscles weakness and extubation outcome in mechanically ventilated patients. In addition the reliability of the sonographic measurements will be assessed.

Inclusion Criteria:

• greater than 18 years old
• Patients requiring invasive mechanical ventilation including patients with endotracheal tube and tracheotomies

Exclusion Criteria:

• Patients with a previously diagnosed neuromuscular disorder (acute or chronic)
• Behavioural agitation
• Patients who are not awake and cooperative
• Previously enrolled in the study