Ultrasound in Undifferentiated Hypotension (US-UHP)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01572571
Recruitment Status : Completed
First Posted : April 6, 2012
Last Update Posted : December 19, 2013
Information provided by (Responsible Party):
Giovanni Volpicelli, San Luigi Gonzaga Hospital

Brief Summary:


  • Symptomatic undifferentiated hypotension represents a negative prognostic factor and the strongest predictor of in-hospital mortality.
  • Misdiagnosis may lead to delayed or incorrect treatment of some life-threatening conditions.


- The aim of the study is to evaluate the feasibility and accuracy of a new bedside ultrasound method that consists in the focused imaging of the thorax, abdomen and leg veins, in emergency.


  • Hypotensive (<100 mm/Hg) patients presenting to our emergency department, complaining of at least one of the neurologic, respiratory and cutaneous signs and symptoms of inadequate tissue perfusion, are prospectively studied by ultrasound-focused assessment of the heart, lungs, inferior vena cava, peritoneum, aorta and leg deep veins.
  • On the basis of physical examination and ultrasound results, the operator declares the diagnostic hypothesis without influencing the attending physician and the following diagnostic procedure (which includes ultrasound, when needed).
  • The diagnostic hypothesis is compared with the final diagnosis, obtained after the hospital route and discussed by a panel of three blinded experts (one radiologist, one cardiologist and one emergency physician).
  • The statistical agreement is calculated by the k of Cohen with p-value, confidence intervals and raw agreement (Ra).

Condition or disease

Study Type : Observational
Actual Enrollment : 100 participants
Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Focused Multiorgan Ultrasound in the Emergency Evaluation of Undifferentiated Hypotension
Study Start Date : December 2011
Actual Primary Completion Date : December 2013
Actual Study Completion Date : December 2013

Resource links provided by the National Library of Medicine

Primary Outcome Measures :
  1. Correlation between the ultrasound primary diagnosis and the clinical final diagnosis [ Time Frame: Clinical judgment on the final diagnosis as deduced from all the data obtained after hospital stay ]

Information from the National Library of Medicine

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Ages Eligible for Study:   16 Years and older   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Patients presenting to the Emergency Department with undifferentiated hypotension

Inclusion Criteria:

  • Arterial pressure <100 mm/Hg at presentation
  • At least one of the following symptoms:
  • Unresponsive
  • Syncope
  • Impaired mental status
  • Respiratory distress
  • Severe malaise and fatigue

Exclusion Criteria:

  • Patients undergoing cardiopulmonary resuscitation
  • Trauma patients
  • Electrocardiographic and clinical diagnosis of STEMI or NSTEMI
  • Clear cause of shock that needs immediate intervention (hemorrhage, gastrointestinal bleeding, drugs overdose)
  • Late evolution of shock state in a patient already treated with known diagnostic tests

Information from the National Library of Medicine

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 identifier (NCT number): NCT01572571

San Luigi Gonzaga University Hospital, Department of Emergency Medicine
Orbassano, Torino, Italy, 10043
Sponsors and Collaborators
San Luigi Gonzaga Hospital
Principal Investigator: Giovanni Volpicelli, MD San Luigi Gonzaga Hospital

Responsible Party: Giovanni Volpicelli, Principal Investigator, San Luigi Gonzaga Hospital Identifier: NCT01572571     History of Changes
Other Study ID Numbers: SLG-182/2011
First Posted: April 6, 2012    Key Record Dates
Last Update Posted: December 19, 2013
Last Verified: December 2013

Keywords provided by Giovanni Volpicelli, San Luigi Gonzaga Hospital:
Emergency ultrasound
Focused ultrasound
Point-of-care ultrasound
Undifferentiated hypotension

Additional relevant MeSH terms:
Vascular Diseases
Cardiovascular Diseases