NCT07788170Not yet recruiting
Nutritional Risk and Diaphragmatic Thickness in Mechanically Ventilated COPD Patients
Nutritional Risk Assessment and Diaphragmatic Thickness for Predicting Outcome in Elderly Mechanically Ventilated COPD Patients
Source: ClinicalTrials.gov · Last updated 26 Aug 2026
Brief summary (registry, in English)
Malnutrition and muscle wasting are frequent complications in patients with chronic obstructive pulmonary disease (COPD) experiencing acute exacerbations. In critically ill patients who require invasive mechanical ventilation, nutritional depletion and ventilator-induced diaphragmatic dysfunction can complicate recovery and prolong intensive care unit (ICU) stays. The purpose of this prospective observational cohort study is to evaluate nutritional status and diaphragmatic structure in elderly patients (aged 60 years and older) with COPD who require invasive mechanical ventilation for at least 48 hours. Participants will undergo bedside assessments, including: * Calculation of clinical risk scores within the first 24 hours of ICU admission: modified Nutrition Risk in the Critically Ill (mNUTRIC), Sequential Organ Failure Assessment (SOFA), and Acute Physiology and Chronic Health Evaluation II (APACHE II). * Anthropometric measurements: mid-upper arm circumference (MUAC) and calf circumference (CC) measured at baseline, day 7, and the day of weaning. * Diaphragmatic ultrasonography: point-of-care ultrasound to measure diaphragm thickness at end-expiration and end-inspiration at baseline, day 7, and during weaning trials. The main goal is to evaluate the relationship between nutritional risk (assessed by the mNUTRIC score) and diaphragmatic thickness, and to determine how these parameters correlate with clinical outcomes such as weaning success, total duration of mechanical ventilation, ICU length of stay, and ICU mortality.
- Status (registry)
- Not yet recruiting
- Study type
- Observational
- Enrollment
- 120 (estimated)
- First submitted
- 22 Aug 2026
- Start date
- Oct 2026
- Primary completion date
- Oct 2027
- Lead sponsor
- Assiut University
- Diseases
- COPD
- NCT number
- NCT07788170
What you commit to
- Study type: Observational
- Planned participants: 120
- From Oct 2026 to the primary completion date, Oct 2027
- No sites listed in no country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other illness
- Pre-existing neuromuscular disease affecting diaphragmatic or peripheral muscle function (e.g., myasthenia gravis, muscular dystrophy, poliomyelitis, motor neuron disease)
- Terminal illness or malignancy with an expected survival of \< 48 hours
Other
- Known diaphragmatic paralysis or phrenic nerve injury predating admission
- Severe limb edema, amputation, or lower-limb deformity precluding valid anthropometric measurement
- Duration of mechanical ventilation \< 48 hours, or death/extubation occurring before baseline assessment completion
- Subcutaneous emphysema or thoracic/abdominal wall pathology precluding adequate diaphragmatic ultrasound acoustic windows
Who the study is looking for
- Adult patients aged ≥ 60 years
- Confirmed diagnosis of Chronic Obstructive Pulmonary Disease (COPD) according to GOLD (Global Initiative for Chronic Obstructive Lung Disease) criteria
- Admission to the intensive care unit (ICU) or respiratory ICU for acute exacerbation of COPD
- Requirement for invasive mechanical ventilation for ≥ 48 hours
- Provision of informed consent by the patient or a first-degree relative/legal guardian
Age in the registry: 60 years to - · Sex: All
This page is information, not medical advice. Discuss any trial with your doctor.