- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01744210
Evaluation of Blood Flow Patterns in Lung Blood Vessels Using Ultrasound Technique in Patients With Congestive Heart Failure
Evaluation of Pulmonary Blood Flow Patterns Using Transthoracic Doppler in Patients With Congestive Heart Failure
Study Overview
Status
Conditions
Detailed Description
This new system was previously studied among 31 healthy volunteers and one subject with atrial fibrillation.1 Pulsed spectral Doppler signals were obtained over the chest wall using a signal processing and algorithm package in conjunction with a non-imaging Doppler device coupled with an electrocardiogram. Clear reproducible lung Doppler signals (LDS) originating from different elements and phases of cardiac activity that generate mechanical waves which propagate throughout the lung were expressed in pulsatile changes in ultrasound reflections.
After the completion of the first 25 patients in our pilot study, we have received some valuable information. After assessing patients with CHF and pulmonary hypertension, we identified signals particular to the CHF group. There were unique features that were never observed in the normal patients. On top of the regular Lung Doppler signals seen in normal patients, high velocity "disorganized" variable signals that were not synchronous with the heart beat, but rather sometimes with respiration were observed. We believe that the signals may represent popping open of small bronchi surrounded by "water filled" parenchyma. These events that generate very strong reflector like signals may represent the movement of fluid at the blood vessel-alveolar air junction.
Study Type
Contacts and Locations
Study Locations
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New York
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New-York, New York, United States, 10075
- NSLIJ Lenox Hill hospital, 100East 77 Street
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
Inclusion criteria
- Age over 50 years
Belongs to one of the following categories:
A. Decompensated CHF: patients with overt pulmonary congestion or pulmonary edema on admission, evident both clinically and by chest x-ray. Patients may be with or without a Swan-Ganz catheter.
B. Compensated CHF: patients with significant CHF (NYHA II-IV) who are well controlled and without evidence of pulmonary congestion or pulmonary edema on admission.
C. Non-CHF controls: patients without CHF and without any of the following: pulmonary hypertension, any known pulmonary disease, uncontrolled hypertension.
- Signed Informed Consent
Exclusion Criteria:
- Chronic obstructive pulmonary disease (COPD) Asthma Interstitial lung disease Any other obstructive or restrictive lung diseases Pneumonia- currently or in the past 3 months prior to inclusion Current or past pulmonary embolism Non-cardiogenic pulmonary edema or lung injury (e.g. ARDS) Right sided pleural effusion that is not mild Severe kyphosis, scoliosis or chest wall deformity
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
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CHF
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Diagnose specific patterns of doppler signals in CHF patients
Time Frame: December 2013
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Comparing Doppler signals' features as velocity, power, timimg, slopes and other between CHF patients and non-CHF patients.
Participants will be followed up for the duration of hospital stay, usuall up to 1 week.
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December 2013
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start
Primary Completion (ANTICIPATED)
Study Completion (ANTICIPATED)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ESTIMATE)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- DOP081412
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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