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Comparison of Educational Methods for Teaching Peripheral Blood Smears (PBS)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT02435316
Recruitment Status : Completed
First Posted : May 6, 2015
Last Update Posted : May 6, 2015
Sponsor:
Information provided by (Responsible Party):
Anthony A. Donato, The Reading Hospital and Medical Center

Brief Summary:
This is a prospective, randomized controlled, crossover trial comparing the effectiveness one two curricular designs to teaching peripheral blood smears to residents.

Condition or disease Intervention/treatment Phase
Hematologic Diseases Other: Case vignette-based teaching of cell recognition Other: Compare-contrast basic science teaching of cell recognition Not Applicable

Detailed Description:

General Approach:

This study will employ a randomized, controlled design and will use as its outcomes two separate post-tests, one after the first teaching session and one 4 weeks after the second intervention.

Design The investigators are attempting to find whether the combination of basic science education using an 1-hour additive microskills- building method along with compare/ contrast model versus a 1-hour traditional case-based format would improve performance on a visual recognition test of hematology questions. A final test at 4 weeks after the cross-over between the two groups will also help investigators analyze whether the order of exposure to the teaching method would have an impact on the final performance.

Sampling, including sample size and statistical power:

Sample size will be between 40-50 resident physicians meeting inclusion criteria for the study. There is not enough data in the literature to effectively determine power, so we will use a convenience sample of the largest feasible group (around 40).

Collection of data:

Data will be collected on an excel spreadsheet and will be permanently de-identified on that spreadsheet; it will be kept on a password-protected site.

Information management and analysis software:

Data will be entered into a password protected excel spreadsheet and each study participant will be assigned a unique identifier code which will be used to link the data. Statistical analysis will be performed using SPSS version 20.

Data entry, editing and management, including handling of data collection forms, different versions of data, and data storage and disposition:

Paper surveys and tests will be collected, recorded and locked; they will be destroyed 2 years after termination of the study. A paired t-test will be used to compare the two samples means for significance.

Quality Control / Assurance:

Pretest and post-tests will be checked against a gold standard, a hospital board-certified hematopathologist, to check the quality of the slides.

Bias in data collection, measurement and analysis:

Given the small numbers of participants expected, a Type 1 error (failure to detect a difference in groups when one exists) is possible, as the study will possibly be underpowered.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 30 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)
Primary Purpose: Basic Science
Official Title: A Randomized, Controlled Cross Over Trial of Two Educational Methods and Their Additive Effects in the Recognition of Abnormal Peripheral Blood Smears
Study Start Date : April 2012
Actual Primary Completion Date : June 2012
Actual Study Completion Date : July 2012

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Blood Disorders

Arm Intervention/treatment
Active Comparator: Group 1
Group 1 will receive 1 hour of compare-contrast basic science teaching of cell recognition to enhance recognition of those photographs, followed by 1 hour Case vignette-based teaching of cell recognition 2 weeks later
Other: Case vignette-based teaching of cell recognition
Intervention group members will be taught peripheral blood smears by using power point slides and utilizing additive microskills using the compare/ contrast technique to recognize various cell types. Memory will be reinforced by using cases to help recognize the clinical importance of learning about individual cell types.

Other: Compare-contrast basic science teaching of cell recognition
The control group will be given a traditional 60-minute lecture using board review questions with accompanying pictures of peripheral blood smears, without explaining individual cell type.

Active Comparator: Group 2
Group 2 will receive 1 hour of Case vignette-based teaching of cell recognition followed by compare-contrast basic science teaching of cell recognition 2 weeks later
Other: Case vignette-based teaching of cell recognition
Intervention group members will be taught peripheral blood smears by using power point slides and utilizing additive microskills using the compare/ contrast technique to recognize various cell types. Memory will be reinforced by using cases to help recognize the clinical importance of learning about individual cell types.

Other: Compare-contrast basic science teaching of cell recognition
The control group will be given a traditional 60-minute lecture using board review questions with accompanying pictures of peripheral blood smears, without explaining individual cell type.




Primary Outcome Measures :
  1. Improvement in post test scores at 2 and 4 weeks after education [ Time Frame: 4 weeks ]
    Primary outcome was an improvement in test score from pre-test to 2 and 4-week post-test. All participants took a 15-question pretest in addition to a posttest at 2 and 4 weeks. Each test consisted of pictures of various cell types from the peripheral blood.



Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Internal medicine and Family Medicine residents and faculty at The Reading Hospital and Medical Center having completed medical school

Exclusion Criteria:

  • Practicing/ board certified hematologists

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02435316


Locations
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United States, Pennsylvania
Reading Health System
West Reading, Pennsylvania, United States, 19612
Sponsors and Collaborators
The Reading Hospital and Medical Center
Investigators
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Study Director: Anthony Donato, MD The Reading Hospital and Medical Center
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Responsible Party: Anthony A. Donato, Associate Program Director, Inpatient Medicine, The Reading Hospital and Medical Center
ClinicalTrials.gov Identifier: NCT02435316    
Other Study ID Numbers: TRHMC 016-12
First Posted: May 6, 2015    Key Record Dates
Last Update Posted: May 6, 2015
Last Verified: April 2015
Keywords provided by Anthony A. Donato, The Reading Hospital and Medical Center:
Education
Additional relevant MeSH terms:
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Hematologic Diseases