About this trial
* The primary objective is to evaluate the use of diaphragmatic function and skeletal muscle mass by ultrasound as a tool to establish the diagnosis of COPD and assess the severity of the disease. * The secondary objective is to compare diaphragmatic function, Skeletal muscle mass, and spirometry results in patients with COPD.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
This group include healthy volunteers who aged ≥ 40 years .
This include stable COPD Patients who will be diagnosed by GOLD 2024 and last excerbation ≥ 6weeks .
Disqualifiers
Patients with disorders that may affect diaphragmatic function as
Musculoskeletal / neurological disorders
diaphragmatic eventration \ hiatus hernia
morbid obesity
Trial population
Two groups will be enrolled in the study; the first group will include healthy volunteers who aged ≥ 40 years\& the second group will include stable COPD Patients of the same age group
Trial design
Case-control
Prospective
Treatments tested in this trial
ultrasound, spirometry
DeviceUltrasound assessment of 1. diaphragmatic excursion:-the probe will be angled medially ,cranially , and dorsally so that the ultrasound beam reaches the posterior third of the diaphragm, in B-mode.Then, then M-mode exploration line will be placed perpendicular to the diaphragmatic dome to obtain maximum excursion . 2. (Tdi) will be measured using a high-frequency linear probe (10 MHz) placed on (ZA).The probe will be angled perpendicular to the lateral chest wall and placed between the midaxillary and anterior axillary lines at the eighth or ninth intercostal space. 3. Quadricep\|rectus femoris muscle assessment will be done by placing the transducer perpendicular to the long axis of the thigh. * Spirometry:-will be performed thrice by experienced technicians at our pulmonary function laboratory. Patients will be asked to take a maximal inspiration and then to forcefully expel air for as long and as quickly as possible.
Treatment groups
Trial outcomes
Primary outcomes
to study the correlation between diaphragmatic excursion and FEV1
In the COPD group,The aim is to assess the correlation between diaphragmatic excursion and FEV1
Secondary outcomes
correlation between diaphragmatic muscle function , skeletal muscle mass and duration of hospital stay
correlation between diaphragmatic excursion measured by thoracic ultrasound in cm , quadriceps muscle thickness measured by ultrasound in cm and duration of hospital stay (in days)
Locations
Sponsors and contacts
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