- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03189134
Utilization of Confocal Microscopy During Cardiac Surgery
July 3, 2020 updated by: Aditya Kaza
The investigators propose to translate confocal microscopy for use during open heart surgery.
This tool will help discriminate between various types of tissues in the heart during surgery.
One of the most feared complication after heart surgery is heart block.
This flexible fiberoptic confocal microscope will help discriminate between the various types of tissues in the heart and thus help avoid injury to the conduction tissue during surgery.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
This is an interventional pilot study that proposes to evaluate the safety, logistical feasibility, and technological feasibility of using Fluorescite with fiberoptic confocal microscopy during cardiac surgery to discriminate between cardiac tissue and conduction tissue.
During surgery to repair atrial septal defect, diluted Fluorescite will be added to the surface of the heart.
The fiberoptic confocal microscope (Cellvizio 100 Series System with Confocal Miniprobe) will be used to record images in several different locations of the heart.
The image files will be provided to blinded raters who will attempt to identify whether they contain cardiac tissue or conduction tissue.
All subjects will be monitored while they are inpatient after surgery for any adverse events.
Study Type
Interventional
Enrollment (Actual)
6
Phase
- Phase 1
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
-
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Massachusetts
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Boston, Massachusetts, United States, 02115
- Boston Children's Hospital
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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
1 month to 21 years (ADULT, CHILD)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Males and females between 30 days and 21 years old
- Undergoing elective surgery for closure of atrial septal defect
- Both parents attend pre-operative clinic appointment, to provide 2 parent consent, or an adult participant (age 18-21) may provide consent for him/herself
Exclusion Criteria:
- Prior history of adverse reaction to fluorescein sodium
- Prior history of renal failure or abnormal renal function
- Baseline PR interval > 220 msec or 98% for age
- Baseline HR > 87% for age
- Underlying genetic syndrome associated with progressive AV block of sinus node dysfunction (e.g. Holt-Oram or NKX2.5)
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
- Primary Purpose: BASIC_SCIENCE
- Allocation: NA
- Interventional Model: SINGLE_GROUP
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Imaging arm
Up to 5mL of 1:1000 dilute FLUORESCITE will be applied to cardiac tissue prior to imaging with Cellvizio 100 Series System with Confocal Miniprobes
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Dilute fluorescite will be applied to cardiac tissue prior to imaging
Other Names:
Microscopy system will image cardiac tissue.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Participants Who Experienced Adverse Events Possibly Related to Study Intervention
Time Frame: Surgery through discharge (approximately 5 days)
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All adverse events will be collected and relatedness to study intervention will be determined.
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Surgery through discharge (approximately 5 days)
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Participants For Whom FCM Imaging During Cardiac Surgery Was Feasible
Time Frame: Surgery through discharge (approximately 5 days)
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Evaluated by measuring increased time on bypass, rate of enrollment, and the ability to incorporate this imaging modality into standard OR procedures.
The additional time on bypass and ability to incorporate the imaging into standard OR procedures was assessed for each subject.
3 additional minutes on bypass was determined as reasonable per the protocol.
The ability to incorporate the imaging was considered successful when it did not interfere with the planned clinical procedure.
The rate of enrollment was evaluated for the study as a whole.
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Surgery through discharge (approximately 5 days)
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Percentage of Agreement in Classification of FCM Images
Time Frame: After all participants completed the study (range 2 months to 1 year post surgery)
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A first reviewer selected 60 FCM images and classified them as reticulated, striated, or of poor quality (indistinguishable microstructure) with 20 images in each group.
Quality of the files is measured by the ability of 8 blinded reviewers to classify the images accurately.
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After all participants completed the study (range 2 months to 1 year post surgery)
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Collaborators
Investigators
- Principal Investigator: Aditya K Kaza, Boston Children's Hospital
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.
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)
April 2, 2018
Primary Completion (ACTUAL)
March 4, 2019
Study Completion (ACTUAL)
April 26, 2019
Study Registration Dates
First Submitted
May 22, 2017
First Submitted That Met QC Criteria
June 14, 2017
First Posted (ACTUAL)
June 16, 2017
Study Record Updates
Last Update Posted (ACTUAL)
July 7, 2020
Last Update Submitted That Met QC Criteria
July 3, 2020
Last Verified
July 1, 2020
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- P00013570
- R56HL128813 (U.S. NIH Grant/Contract)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
IPD Plan Description
There is no plan to make individual participant data available to other researchers.
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Yes
Studies a U.S. FDA-regulated device product
Yes
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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