Assessment of Stroke Volume in Shock Using Echocardiography Versus Bioreactive Impedance
Completed
Observational Study
ShockCritical Illness
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
No Study Drug
Researchers observe your health over time — no experimental treatment is given.
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At a Glance
Age
18 – 90
Sex
Any
Study type
Observational
Participants needed
30
Sponsor
University of Nevada, Las Vegas · Other
Who this trial is looking for
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This study aims to evaluate the correlation between stroke volume measurements obtained by transthoracic echocardiography and bioreactance-based noninvasive cardiac output monitoring. The primary objective is to assess the level of agreement between these two modalities in critically ill patients.
Trial Locations
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Status
Eligibility Criteria
Inclusion Criteria
* Age ≥ 18 years
* Clinical diagnosis of shock as determined by the treating ICU physician (e.g., hypotension requiring vasopressors or evidence of end-organ hypoperfusion)
* Able to obtain informed consent from the patient or a legally authorized representative
* Enrollment with…
Inclusion Criteria
* Age ≥ 18 years
* Clinical diagnosis of shock as determined by the treating ICU physician (e.g., hypotension requiring vasopressors or evidence of end-organ hypoperfusion)
* Able to obtain informed consent from the patient or a legally authorized representative
* Enrollment within 24 hours of ICU admission
Exclusion Criteria:
* Pregnancy
* Known severe aortic valve disease or dynamic left ventricular outflow tract obstruction
* Morbid obesity (BMI \> 40) that precludes accurate echocardiographic imaging Presence of cardiac arrhythmias (e.g., atrial fibrillation with rapid ventricular response) affecting stroke volume measurements
* Implanted cardiac assist devices (e.g., LVAD, pacemaker dependency)
* Imminent death or decision for comfort care only
Contacts
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