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Showing 1–24 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Diaphragm Ultrasound Clear all
Active, not recruiting No phase listed Observational

Long Term Follow up of Children Enrolled in the REDvent Study

NCT03709199
View directory record Official record
Conditions
Respiratory Distress Syndrome, Adult, Ventilator-Induced Lung Injury, Neurocognitive Dysfunction, Quality of Life, Respiration Disorders
Interventions
Ventilation Inhomogeneity, Diaphragm Ultrasound, Respiratory Inductance Plethysmography, Spirometry, Functional Residual Capacity, MIP/MEP, 6 minute walk test, Neurocognitive Testing, Emotional Health Assessment, Health Related Quality of Life, Functional Status, Respiratory Status Questionnaire
Diagnostic Test
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
1 Month to 18 Years
Enrollment
176 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 16, 2025 · Synced Sep 9, 2026, 9:42 AM EDT
Completed No phase listed Observational

Studying Skeletal Muscle, Heart, and Diaphragm Imaging in Boys With Duchenne Muscular Dystrophy

NCT01451281
View directory record Official record
Conditions
Muscular Dystrophy, Muscular Disease
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
5 Years to 17 Years · Male only
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 21, 2019 · Synced Sep 9, 2026, 9:42 AM EDT
Recruiting Not applicable Interventional

Prospective Registry for Long-term Outcomes Following FETO in Severe Left and Right CDH

NCT07166172
View directory record Official record
Conditions
Congenital Diaphragmatic Hernia, Congenital Abnormalities, Neonatal Diseases and Abnormalities, Hernia, DIaphragmatic, Congenital, Internal Hernia, Hernia, Pathological Conditions, Anatomical, Pathological Conditions, Signs and Symptoms
Interventions
Fetal Treatment Arm (FETO Group)
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older · Female only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 22, 2026 · Synced Sep 9, 2026, 9:42 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Shear-wave Elastography Compared to Respiratory Function Testing

NCT04959526
View directory record Official record
Conditions
Respiratory Function Loss, Respiratory Complication
Interventions
Shear-wave elastography
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 15, 2026 · Synced Sep 9, 2026, 9:42 AM EDT
Completed Not applicable Interventional Results available

Real-time Effort Driven VENTilator Management

NCT03266016
View directory record Official record
Conditions
Ventilation Therapy; Complications, Diaphragm Disease, Pediatric Respiratory Diseases
Interventions
Computerized Ventilator Protocol, Esophageal Manometry, Respiratory Inductance Plethysmography (RIP), Diaphragm Ultrasound, Maximal Inspiratory Pressure
Other · Diagnostic Test
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
30 Days to 18 Years
Enrollment
248 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Sep 9, 2026, 9:42 AM EDT
Recruiting Not applicable Interventional

Clinical Utility of Portable Dynamic Chest X Ray (DDR) in the ICU

NCT06538376
View directory record Official record
Conditions
Pulmonary Edema, Pneumonia, Atelectasis, Pleural Effusion, Acute Rejection of Lung Transplant (Disorder), Airway Obstruction, Rib Fractures, Acute Copd Exacerbation, Asthma COPD, Pulmonary Embolism, Hemothorax, Pneumothorax, Mesothelioma, Diaphragmatic Paralysis
Interventions
Portable Dynamic Digital Radiography (DDR)
Diagnostic Test
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 28, 2025 · Synced Sep 9, 2026, 9:42 AM EDT
Completed No phase listed Observational

Diaphragm Ultrasound Measurements With Variations in Modes of Ventilation

NCT04319939
View directory record Official record
Conditions
Mechanical Ventilation
Interventions
Assist Control Mode and Pressure Support Mode Mechanical Ventilation
Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
66 participants
Timeline
2020 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 25, 2025 · Synced Sep 9, 2026, 9:42 AM EDT
Recruiting Phase 4 Interventional

A Study to Investigate of the Effects of Opioid Exposure on the Ability of the Diaphragm Muscle

NCT05856136
View directory record Official record
Conditions
Respiratory Function Loss, Respiratory Complication
Interventions
Fentanyl Injection
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Sep 9, 2026, 9:42 AM EDT
Recruiting Not applicable Interventional

North American Fetal Therapy Network for Long-term Outcome Following Fetoscopic Endoluminal Tracheal Occlusion in Severe Left and Right Congenital Diaphragmatic Hernia

NCT06739356
View directory record Official record
Conditions
Congenital Diaphragmatic Hernia
Interventions
Fetal Treatment arm (FETO Group)
Device
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older · Female only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 18, 2025 · Synced Sep 9, 2026, 9:42 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Inferior Vena Cava (IVC) Diameters Before & After Interscalene Block

NCT03989076
View directory record Official record
Conditions
IVC - Inferior Vena Cava Abnormality
Interventions
Interscalene Brachial Plexus Block
Procedure
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jul 20, 2021 · Synced Sep 9, 2026, 9:42 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Using Ultrasound to Study Respiratory Muscle Function in Critically Ill Patients

NCT03139695
View directory record Official record
Conditions
Injury of Diaphragm, Mechanical Ventilation Complication, Critical Illness
Interventions
Ultrasound
Diagnostic Test
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 7, 2017 · Synced Sep 9, 2026, 9:42 AM EDT
Completed Not applicable Interventional

Erector Spinae Plane Versus Interscalene Blocks for Shoulder Surgery

NCT03807505
View directory record Official record
Conditions
Anesthesia, Local, Phrenic Nerve Paralysis, Upper Extremity Injury, Shoulder Injury
Interventions
Interscalene brachial plexus nerve block, Erector spinae plane block
Procedure
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Mar 4, 2020 · Synced Sep 9, 2026, 9:42 AM EDT
Completed Not applicable Interventional

Supraclavicular Block vs Retroclavicular Block: Incidence of Phrenic Nerve Paralysis

NCT02631122
View directory record Official record
Conditions
Phrenic Nerve Paralysis
Interventions
Supraclavicular vs Retroclavicular Nerve Block
Procedure
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 21, 2019 · Synced Sep 9, 2026, 9:42 AM EDT
Recruiting No phase listed Observational

Respiratory, Limb Muscle Properties, and Physical Performance in Adult Lung Transplant Recipients

NCT07747337
View directory record Official record
Conditions
Lung Transplantation, End Stage Lung Disease
Interventions
Respiratory and Limb Muscle Assessment
Diagnostic Test
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Sep 9, 2026, 9:42 AM EDT
Recruiting Not applicable Interventional

Effects of Lung Volume on Upper Airway Patency During Drug Induced Sleep Endoscopy

NCT05350332
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Negative Pressure Ventilator, Pulmonary Function Testing (PFT), Transcutaneous Phrenic Nerve Stimulation, Percutaneous Phrenic Nerve Stimulation
Device
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Sep 9, 2026, 9:42 AM EDT
Completed Phase 4 Interventional Results available

Dose-Response Relationships for Hemidiaphragmatic Paresis Following Ultrasound-Guided Supraclavicular Block

NCT03138577
View directory record Official record
Conditions
Surgery of Right Upper Extremity
Interventions
Ultrasound Imaging, Supraclavicular Block, Bedside Negative Inspiratory Force Meter
Diagnostic Test · Drug · Other
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 105 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 12, 2020 · Synced Sep 9, 2026, 9:42 AM EDT
Completed Not applicable Interventional

Interscalene Brachial Plexus Block Washout to Reverse Inadvertent Phrenic Nerve Blockade

NCT03677778
View directory record Official record
Conditions
Anesthesia, Local, Phrenic Nerve Paralysis, Upper Extremity Injury, Phrenic Nerve Palsy on the Left, Phrenic Nerve Palsy on the Right
Interventions
Normal saline injected via interscalene nerve catheter, Placebo
Procedure · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Aug 1, 2022 · Synced Sep 9, 2026, 9:42 AM EDT
Recruiting No phase listed Observational

Evaluating Hemidiaphragmatic Paralysis With Prolonged Neural Blockade From an Interscalene Brachial Plexus Block

NCT04209504
View directory record Official record
Conditions
Shoulder Surgery, Shoulder Pain, Shoulder Injuries, Shoulder Arthritis, Shoulder Disease, Rotator Cuff Tears, Rotator Cuff Injuries, Rotator Cuff Arthropathy of Left Shoulder, Rotator Cuff Arthropathy of Right Shoulder, Rotator Cuff Repair
Interventions
Ultrasound, Ropivacaine, Bupivacaine, MediPines AGM100 Advanced Respiratory Monitoring System
Diagnostic Test · Drug · Device
Lead sponsor
Duke University
Other
Eligibility
18 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Sep 9, 2026, 9:42 AM EDT
Terminated No phase listed Observational Results available

Change In Diaphragmatic Thickness Predicts Extubation Success

NCT02656199
View directory record Official record
Conditions
Mechanical Ventilation Complication
Interventions
Diaphragm Ultrasound
Procedure
Lead sponsor
Albert Einstein Healthcare Network
Other
Eligibility
18 Years and older
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 8, 2020 · Synced Sep 9, 2026, 9:42 AM EDT
Terminated Phase 2 Interventional Results available

Fetal Tracheal Balloon Study in Diaphragmatic Hernia

NCT00966823
View directory record Official record
Conditions
Diaphragmatic Hernia, Lung Disease
Interventions
Fetal tracheal obstruction with detachable balloon (device)
Device
Lead sponsor
Rhode Island Hospital
Other
Eligibility
18 Years and older · Female only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Sep 9, 2026, 9:42 AM EDT
Completed Not applicable Interventional Results available

Diaphragm Ultrasound Vs Transpulmonary Pressure To Set PEEP in ARDS

NCT02463773
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome, Acute Respiratory Failure
Interventions
Ultrasound
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 16, 2022 · Synced Sep 9, 2026, 9:42 AM EDT
Withdrawn No phase listed Observational

Re-Evaluation of Systemic Early Neuromuscular Blockade and Transthoracic Ultrasound Assessment of the Diaphragm

NCT03132896
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome, Diaphragm Injury, Neuromuscular Blockade
Interventions
Not listed
Lead sponsor
University Health Network, Toronto
Other
Eligibility
19 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
6
States / cities
Boston, Massachusetts • Springfield, Massachusetts • Cleveland, Ohio + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2019 · Synced Sep 9, 2026, 9:42 AM EDT
Completed Not applicable Interventional

MR Guided Focused Ultrasound for Treatment of Neuropathic Pain

NCT03111277
View directory record Official record
Conditions
Severe Neuropathic Pain Due to Radiculopathy or Radicular Injury, Spinal Cord Injuries, Phantom Limb Pain
Interventions
Experimental: ExAblate Transcranial treatment
Device
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
21 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 11, 2022 · Synced Sep 9, 2026, 9:42 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Project 4A: Inspiratory Muscle Training and Diaphragm Strength

NCT02367170
View directory record Official record
Conditions
Sepsis
Interventions
Bilateral phrenic nerve stimulation and measurement of transdiaphragmatic pressure, Midazolam, Volitional Measurement of Maximal Inspiratory Pressure (MIP), Inspiratory Muscle Strength Training (IMST), SHAM Inspiratory Muscle Strength Training (IMST), Diaphragm thickness measurement, Blood and Urine samples
Procedure · Drug · Device + 1 more
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated May 6, 2018 · Synced Sep 9, 2026, 9:42 AM EDT