Predicting Outcomes for Covid-19 Using Sonography (POCUS)
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ClinicalTrials.gov Identifier: NCT04384055 |
Recruitment Status :
Completed
First Posted : May 12, 2020
Last Update Posted : December 3, 2021
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Condition or disease | Intervention/treatment |
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COVID-19 Pneumonia, Viral | Diagnostic Test: Lung Ultrasound |
As Covid-19 continues to stress hospital-based resources (including personal protective equipment, ancillary staff availability, and imaging study utilization), it is important to assess whether alternative methods for evaluating patients can be utilized to appropriately triage and care for Covid-positive patients. Current limitations of caring for patients with Covid-19 include the exposure of ancillary healthcare workers (including radiological technicians) and the time/resources required to decontaminate traditional radiological equipment such as x-ray or computerized tomography (CT) machines.
Point-of-care ultrasound (POCUS) has the potential to transform healthcare delivery due to its diagnostic and therapeutic expediency. It can be quickly performed at the bedside by experienced clinicians. It it has been shown to reliably and accurately diagnose patients with a variety of lung diseases, including pneumonia. This study seeks to investigate the role of lung ultrasound in caring for Covid-19 positive patients and whether it can be used to predict patient deterioration. This information will be vital for healthcare workers who seek to identify the virus or patients at risk for deterioration early in the disease course. Moreover, it has the potential to reduce the need for x-rays or CTs for Covid-19 patients, which has the potential to alleviate a significant burden currently being placed on the healthcare system.
Study Type : | Observational |
Actual Enrollment : | 165 participants |
Observational Model: | Case-Control |
Time Perspective: | Prospective |
Official Title: | Predicting Outcomes for Covid-19 Using Sonography |
Actual Study Start Date : | March 21, 2020 |
Actual Primary Completion Date : | November 15, 2021 |
Actual Study Completion Date : | November 15, 2021 |

Group/Cohort | Intervention/treatment |
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Covid-19 Positive Patients
This group includes individuals who were diagnosed with Covid-19 based on reverse transcriptase polymerase chain reaction (RT-PCR) of the nasopharynx
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Diagnostic Test: Lung Ultrasound
Lung ultrasound will be performed on patients undergoing investigation for covid-19 based on a nasopharyngeal PCR. |
Covid-19 Negative Patients
This group includes individuals who did NOT have a positive test for Covid-19 based on reverse transcriptase polymerase chain reaction (RT-PCR) of the nasopharynx.
|
Diagnostic Test: Lung Ultrasound
Lung ultrasound will be performed on patients undergoing investigation for covid-19 based on a nasopharyngeal PCR. |
- Number of Patients Experiencing Death, ICU Admission, Mechanical Ventilation, or Use of High-Flow Nasal Cannula [ Time Frame: 28 days from initial evaluation ]Composite primary outcome of death, ICU admission, mechanical ventilation, or use of high-flow nasal cannula (categorical)
- Number of Patients Requiring Mechanical Ventilation [ Time Frame: 28 days from initial evaluation ]
- Number of Patients Requiring Supplemental Oxygen Usage [ Time Frame: 28 days from initial evaluation ]
- Duration of Supplemental Oxygen Usage [ Time Frame: 28 days from initial evaluation ]
- Length of Stay [ Time Frame: 28 days from initial evaluation ]Duration of Hospitalization (days)
- Characterization of Ultrasound Findings [ Time Frame: 28 days from initial evaluation ]Descriptive analysis of ultrasound findings in Covid-19

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- Any adult (18 or more years of age) presenting to the emergency department with symptoms suspicious for Covid-19
- This individual underwent evaluation for Covid-19 via a nasopharyngeal RT-PCR
- This individual received a lung ultrasound by the study authors within 28 days from initial evaluation
Exclusion Criteria:
- Any individual who did not receive a lung ultrasound within 28 days from initial evaluation for covid-19 related illness

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04384055
United States, California | |
University of California San Francisco | |
San Francisco, California, United States, 94117 | |
Stanford University | |
Stanford, California, United States, 95401 |
Principal Investigator: | Andre D Kumar, MD, MEd | Stanford University | |
Principal Investigator: | Sally Graglia, MD, MPH | University of California, San Francisco |
Responsible Party: | Stanford University |
ClinicalTrials.gov Identifier: | NCT04384055 |
Other Study ID Numbers: |
IRB-55621 |
First Posted: | May 12, 2020 Key Record Dates |
Last Update Posted: | December 3, 2021 |
Last Verified: | December 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
COVID-19 Pneumonia, Viral Respiratory Tract Infections Infections Pneumonia Virus Diseases |
Coronavirus Infections Coronaviridae Infections Nidovirales Infections RNA Virus Infections Lung Diseases Respiratory Tract Diseases |