Detection of Anaerobes in Different Clinicalsamples

August 30, 2017 updated by: Safaa Samir, Assiut University

Detection of Anaerobes in Different Clinical Samples

Early detection of anaerobic bacteria to avoid its serious comlications

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Infections caused by anaerobic bacteria are common and may be serious and life-threatening.Obligately anaerobic bacteria do not grow on solid media in room air (0.04% carbon dioxide and 21% oxygen); facultatively anaerobic bacteria can grow in the presence or absence of air. Microaerophilic bacteria do not grow at all aerobically or grow poorly, but grow better under 10% carbon dioxide or anaerobically. Anaerobic bacteria can be divided into strict anaerobes that can not grow in the presence of more than 0.5% oxygen and moderate anaerobic bacteria that are able of growing between 2 and 8% oxygen. Anaerobic bacteria usually do not possess catalase, but some can generate superoxide dismutase which protects them from oxygen.

Anaerobes are the predominant components of the bacterial flora of normal human skin and mucous membranes, and are therefore a common cause of bacterial infections of endogenous origin. Infections due to anaerobic bacteria can evolve all body systems and sites . The predominant ones include: abdominal, pelvic, respiratory, and skin and soft tissues infections. Because of their fastidious nature, they are difficult to isolate from infectious sites and are often overlooked. Failure to direct therapy against these organisms often leads to clinical failures. Their isolation requires appropriate methods of collection, transportation, and cultivation of specimens. Treatment of anaerobic bacterial infection is complicated by the slow growth of these organisms, which makes diagnosis in the laboratory possible only after several days, by their often polymicrobial nature and by the growing resistance of anaerobic bacteria to antimicrobial agent.

Almost all anaerobic infections originate from the patient's own microflora. Poor blood supply and tissue necrosis lower the oxidation-reduction potential and favor the growth of anaerobes. Any condition that lowers the blood supply to an affected area can predispose to anaerobic infection. Therefore, foreign body, malignancy, surgery, edema, shock, traum and vascular disease may predispose to anaerobic infection. Previous infection with aerobic or facultative organisms also may make the local tissue conditions more favorable for the growth of anaerobic organisms. The human defense mechanisms also may be impaired by anaerobic conditions .

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

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Take different samples for dtection of the causitive anaerobe

Description

Inclusion Criteria:

- Patient with infection organism not yet detected

Exclusion Criteria:

  • patients with infection organism is already detected

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Detection of anaerobes in different clinical samples
Time Frame: 2years
Samples will be in oculated on different anaerobic media
2years

Collaborators and Investigators

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

Sponsor

Investigators

  • Study Director: Sohair Mohamed ahmed, Proffisor, Proffisor
  • Principal Investigator: Asmaa Omar ahmef, Assistant prof, Assistant pro

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 (Anticipated)

September 15, 2017

Primary Completion (Anticipated)

November 1, 2019

Study Completion (Anticipated)

December 1, 2019

Study Registration Dates

First Submitted

August 28, 2017

First Submitted That Met QC Criteria

August 28, 2017

First Posted (Actual)

August 30, 2017

Study Record Updates

Last Update Posted (Actual)

September 1, 2017

Last Update Submitted That Met QC Criteria

August 30, 2017

Last Verified

August 1, 2017

More Information

Terms related to this study

Other Study ID Numbers

  • Anaerobes detection in samples

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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