Aneurysmal Subarachnoid Hemorrhage and Superior Mesenteric Artery Flow Study

March 18, 2020 updated by: University of Florida

Evaluation of Superior Mesenteric Artery Diameter and Flow in Aneurysmal Subarachnoid Hemorrhage Patients Undergoing Hypertensive Therapy for Cerebral Artery Vasospasm

The purpose of this research study is to determine if the diameter and flow of the superior mesenteric artery in patients with aneurysmal subarachnoid hemorrhage undergoing hypertensive therapy for cerebral artery vasospasm are effected enough to justify withholding enteral nutrition.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Study measurements of the diameter and Doppler flow velocity of the superior mesenteric artery (SMA) using abdominal ultrasound in order to evaluate the potential additional risk of non-occlusive mesenteric ischemia (NOMI) and non occlusive bowel necrosis (NOBN) in patients undergoing hypertensive therapy for cerebral vasospasm in Aneurysmal Subarachnoid Hemorrhage (aSAH), to justify the withholding of enteral nutrition.

Study Type

Observational

Enrollment (Actual)

14

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Florida
      • Gainesville, Florida, United States, 32610-3003
        • UF Health

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 99 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Subjects will be recruited from the neurointensive care unit (NICU).Patients admitted to the neurointensive care unit (NICU) with a diagnosis of aSAH or are diagnosed with aSAH while an inpatient at the NICU at and area hospital.

Description

Inclusion Criteria:

  • Patient diagnosed with aSAH

Exclusion Criteria:

  • Hemodynamic instability
  • Already receiving vasopressor therapy
  • Non-aneurysmal SAH
  • Intracranial hemorrhage of other cause
  • Not anticipated to receive hypertensive therapy with vasoactive medications for cerebral vasospasm from SAH or suspected aSAH
  • Unable to visualize SMA using ultrasound
  • Pregnancy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
aneurysmal subarachnoid hemorrhage
Study measurements of the diameter and doppler flow velocity of the superior mesenteric artery (SMA) using abdominal ultrasound in order to evaluate the potential additional risk of non-occlusive mesenteric ischemia (NOMI) and non occlusive bowel necrosis (NOBN) for a aneurysmal subarachnoid hemorrhage in subjects undergoing hypertensive therapy for cerebral vasospasm in SAH, to justify the withholding of enteral nutrition.
Device: Ultrasound
Study measurements of the diameter and doppler flow velocity of the superior mesenteric artery (SMA) for a aneurysmal subarachnoid hemorrhage using abdominal ultrasound.
Other Names:
  • EDGE Ultrasound System

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Change between baseline and 21 days of abdominal ultrasound measurement of the diameter in the superior mesenteric artery
Time Frame: Change from baseline up to 21 days
Change from baseline up to 21 days
Change between baseline and 21 days of abdominal ultrasound measurement of the doppler flow velocity in the superior mesenteric artery
Time Frame: Change from baseline up to 21 days
Change from baseline up to 21 days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of participants with non-occlusive mesenteric ischemia (NOMI)
Time Frame: Change from baseline up to 21 days
Number of participants with non-occlusive mesenteric ischemia (NOMI) undergoing hypertension therapy with vasoactive medications for cerebral arterial vasospasm in aneurysmal subarachnoid hemorrhage (aSAH).
Change from baseline up to 21 days
Number of participants with non occlusive bowel necrosis (NOBN)
Time Frame: Change from baseline up to 21 days
Number of participants with non occlusive bowel necrosis (NOBN) undergoing hypertension therapy with vasoactive medications for cerebral arterial vasospasm in aneurysmal subarachnoid hemorrhage (aSAH).
Change from baseline up to 21 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Florida

Investigators

  • Principal Investigator: Peggy White, MD, University of Florida

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 11, 2016

Primary Completion (Actual)

June 30, 2016

Study Completion (Actual)

June 30, 2016

Study Registration Dates

First Submitted

February 8, 2016

First Submitted That Met QC Criteria

February 12, 2016

First Posted (Estimate)

February 18, 2016

Study Record Updates

Last Update Posted (Actual)

March 19, 2020

Last Update Submitted That Met QC Criteria

March 18, 2020

Last Verified

March 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • IRB201500830

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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