Orthostatic Hypotension in Children With Acute Febrile Illness

May 2, 2007 updated by: Assaf-Harofeh Medical Center
Objective:to determent if children suffering from acute febrile illness has higher rate of orthostatic hypotension compared with children with no febrile illness. Design: a prospective cohort study. Subjects: children aged 4-18 year with fever (temperature > 38.) for up to 48 hours, presenting to the pediatric emergency department. Interventions: All subjects will have their blood pressure measured in supine position (after 5 minute of rest) and after 3 minute of standing.

Study Overview

Detailed Description

Orthosatic hypotension describes a condition in which the autonomic nervous system fails to maintain a stable blood pressure in the face of postural change. Children presenting to the pediatric ED with fever often describe symptom like syncope, lightheadedness, dizziness, pallor, fatigue and weakness. These symptom may result from orthostatism related to acute febrile illness. We assume that fever may be associated with autonomic changes (e.g. vasodilatation) that can cause orthostatism. Objective:

to determent if children suffering from acute febrile illness has higher rate of orthostatic hypotension compared with children with no febrile illness. Design: a prospective cohort study. Subjects: children aged 4-18 year with fever (temperature > 38.) for up to 48 hours, presenting to the pediatric emergency department. Interventions: All subjects will have their blood pressure measured in supine position (after 5 minute of rest) and after 3 minute of standing. Data analysis: The proportion of children with orthostatic hypotension in febrile and non febrile patients will be compared using χ2 test. The changes in blood pressure in both groups will be compared using the Student t test.

Assumption: We assumed that the incidence of orthostatism is higher among children with fever, because fever can cause orthostatism. Significance: Orthostatism can cause syncope which is a potentially dangerous symptom (e.g. head trauma). Syncope accounts for 1-3% of hospital admissions in US. The incidence in youths is estimated at about 15%) Patients presenting to the ED with syncope may undergo numerous and expensive work up with low diagnostic yield. -understanding that fever itself can cause orthostatism and syncope may help us with precaution and diagnosis.

Key word: orthostatism, fever children, emergency medicine.

Study Type

Observational

Enrollment (Anticipated)

100

Contacts and Locations

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

Study Contact

Study Contact Backup

Study Locations

      • Zerifin, Israel, 70300
        • Recruiting
        • Assaf Harofeh Medical Center
        • Sub-Investigator:
          • Tzipora Shalem

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

4 years to 18 years (ADULT, CHILD)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age: 4-18 year of age.
  • Oral temperature > 38.0
  • Duration of fever 6-48 hours

Exclusion Criteria:

  • Treatment with medications that may cause orthostatism.
  • Vomiting or/and diarrhea (more than twice/day).
  • Suspected CNS infection.
  • Chronic diseases
  • Unable to give an informed consent

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

Collaborators and Investigators

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

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

November 1, 2006

Study Registration Dates

First Submitted

March 26, 2007

First Submitted That Met QC Criteria

March 26, 2007

First Posted (ESTIMATE)

March 27, 2007

Study Record Updates

Last Update Posted (ESTIMATE)

May 3, 2007

Last Update Submitted That Met QC Criteria

May 2, 2007

Last Verified

May 1, 2007

More Information

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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