Tympanostomy Tube Extrusion Time & Viscosity

August 7, 2019 updated by: Nazan Degirmenci, Bezmialem Vakif University

The Relationship Between the Tympanostomy Tube Extrusion Time & Viscosity

Studies have focused on the factors that influence tympanostomy tube (TT) extrusion may contribute to the management of OME. In this study the investigators aimed to assess the correlation between the TT extrusion time and viscosity of the middle ear fluid. 33 patients scheduled for TT insertion included in the study. During the paracentesis, fluid from the middle ear was obtained, and the viscosity was measured with a viscometer. After the surgery, patients were controlled monthly until the tubes were seen extruded.The analysis of the correlation between tube extrusion time and viscosity was insignificant (p >0.05).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

45 patients were evaluated in the outpatient clinic of the Bezmialem Vakif University Department of Otorhinolaryngology. OME was diagnosed by endoscopic-otoscopic examination findings and type-B tympanograms. Patients who do not have a previous history of TT insertion and retraction pocket included in the study. They were all scheduled for Shepard TT insertion. 12 patients were excluded for not coming to their postoperative controls properly. Total of 33 patients' data were analyzed in the end. During the paracentesis, myringotomy incision was done at the anteroinferior quadrant. Fluid from the middle ear was obtained by using 22 gauge syringe, and the viscosity was measured with a viscometer. Since the viscosity in most patients was mucoid in appearance, the patients were subdivided into two groups according to median viscosity level to determine whether higher or lower viscosity of the effusion impacted tympanostomy tube extrusion time. Patients with an effusion below and above the median viscosity value of 439 centipoise (cP) were assigned to Group 1 and 2, respectively. After the surgery, patients were controlled monthly until the tubes were seen extruded.Brookfield DV-II+ProCP Viscometer (Brookfield Engineering Laboratories, Inc., Massachusetts, USA) was used for viscosity measurements. This viscometer was able to measure the viscosity of fluid samples as small as 0.5 ml. The results of the viscosity measurements were recorded as cP units. The patients were investigated for any correlation between the viscosity level of the effusion and extrusion time of the TT. Descriptive statistics were presented as mean and standard deviation. T-test was used to estimate the correlation between the parameters. Mann-Whitney U Test was used to compare the two groups. Statistical analyses were conducted with the IBM SSPS 22.0 program. Significance level was set at 0.05 for all tests. All the procedures were approved and performed in accordance with the ethical standards of the relevant national and institutional guidelines on human experimentation and with the Helsinki Declaration of 1975, as revised in 2008. Permission for the study was obtained from Institutional Ethics Committee.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
33

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

  • Turkey
    • Fatih
      • Istanbul, Fatih, Turkey, 34093
        • Bezmialem Vakif University

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

2 years to 53 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

33 patients who were diagnosed as otitis media with effusion and scheduled for Shepard TT insertion included in the study.

Description

Inclusion Criteria:

  • endoscopic-otoscopic examination findings of serous otitis media
  • type-B tympanograms
  • None existence of a previous history of TT insertion
  • None existence of a retraction pocket

Exclusion Criteria:

  • Patients who do not come to their postoperative controls
  • existence of a previous history of TT insertion
  • existence of a retraction pocket

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

  • Observational Models: Case-Only
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Group 1
middle ear fluid viscosity <439 centipoise (cP), Tympanostomy tube extrusion time of the all patients recorded prospectively
Other: Middle ear fluid viscosity
The patients were subdivided into two groups according to median viscosity level
Other: Tympanostomy tube extrusion time
Tympanostomy tube extrusion time of the all patients recorded prospectively.
Group 2
middle ear fluid viscosity >439 centipoise (cP), Tympanostomy tube extrusion time of the all patients recorded prospectively
Other: Middle ear fluid viscosity
The patients were subdivided into two groups according to median viscosity level
Other: Tympanostomy tube extrusion time
Tympanostomy tube extrusion time of the all patients recorded prospectively.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Mean tube extrusion time
Time Frame: 2 year
Mean tube extrusion time of total 33 patients was measured
2 year
The correlation between tube extrusion time and viscosity
Time Frame: 2 year
The correlation between tube extrusion time and viscosity was analyzed
2 year

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Bezmialem Vakif University

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Nazan Degirmenci, MD, Bezmialem Vakif University

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.

General Publications

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 15, 2018

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 15, 2019

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 25, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 19, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 19, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 20, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 8, 2019

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 7, 2019

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • B.30.2.BAV.0.05.05/468

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

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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