Source Profiling of Biohazardous Aerosols in Hospitals

August 21, 2013 updated by: Hospital Authority, Hong Kong
To characterise the physical parameters (number concentration, size distribution and their trajectories) of aerosols (droplets) generated in high risk procedures.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

60

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

  • China
      • Hong Kong, China
        • Queen Elizabeth Hospital

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

60 from each groups. Healthy subjects - recruited from voluntary basis. LRTI - recruited from patient wards with consent. URTI - recruited from out-patient clinic with consent.

Description

Inclusion Criteria:

  1. Adult patients (>18 years old) that can give valid consent
  2. URTI: with symptoms such as coryza, sore throat, nasal discharge, cough and sputum +/- fever. Amongst these, cough should be a major complaint.
  3. LRTI (CAP): acute lower respiratory illness of no other known cause which is usually associated with fever, symptoms and signs of the chest and abnormalities on the CXR. (BTS 1993).

Exclusion Criteria:

  1. Pneumonia developed at or after 48 hours, or history of hospital admissions within 1 month of the present admission (to exclude hospital-acquired infections)
  2. Patients who are unable to cooperate with the study protocols (such as mentally confused, dementia) or are physically unable to sit or stand independently to carry out the tests optimally.
  3. Patients with TOCC associations with infections such Avian Flu or SARS (travel to endemic areas, at-risk occupations, close contacts with index cases, especially with compatible clinical features) or NPA revealed positivity of influenza A/B
  4. Patients who are clinically or haemodynamically unstable, such as the need for inotropes, oxygen supplement of >2L/min, any types of shock, etc.
  5. Underlying diseases that might affect the coughing effort (such as musculoskeletal diseases, or severe kyphoscoliosis)

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.

Sponsor

Hospital Authority, Hong Kong

Collaborators

Hong Kong University of Science and Technology

Investigators

  • Principal Investigator: Ming Fang, Prof, Institute for the Environment, The Hong Kong University of Science and Technology

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

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

March 1, 2006

Study Completion (Actual)

June 1, 2006

Study Registration Dates

First Submitted

August 15, 2007

First Submitted That Met QC Criteria

August 16, 2007

First Posted (Estimate)

August 17, 2007

Study Record Updates

Last Update Posted (Estimate)

August 22, 2013

Last Update Submitted That Met QC Criteria

August 21, 2013

Last Verified

August 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • KC/KE-04-0071/ER-1
  • HARECCTR0500055

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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