Optical Tissue Identification for Myocardial Architecture

  • End date
    Nov 25, 2022
  • participants needed
  • sponsor
    Aditya Kaza
Updated on 25 June 2021


The goal of this study is to test the hypothesis that fiberoptic confocal microscopy (FCM) imaging during repair of common congenital heart defects is a useful adjunct for avoidance of conduction abnormalities.


This is an interventional randomized controlled study to investigate the use of fiberoptic confocal microscopy (FCM) imaging for avoidance of conduction abnormalities during repair of common congenital heart defects. Study results will be compared to a cohort of similar surgical patients following standard surgical procedures where FCM was not used. We will analyze pre-and postoperative ECGs to identify conduction abnormalities.

Condition Tetralogy of Fallot With Pulmonary Stenosis, Complete Atrioventricular Canal, Ventricular septal defect
Treatment Fluorescite, Cellvizio 100 Series System with Confocal Miniprobes
Clinical Study IdentifierNCT04017975
SponsorAditya Kaza
Last Modified on25 June 2021


Yes No Not Sure

Inclusion Criteria

Age 30 days to less than 18 years old
Patients with planned surgical repair of
Ventricular septal defect (VSD)
Complete atrioventricular canal (CAVC)
Tetralogy of Fallot (ToF) with pulmonary stenosis

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 > 98% for age
Underlying genetic syndrome associated with progressive AV block or sinus node dysfunction (e.g. Holt-Oram or NKX2.5)
Any surgical repair that requires staging or palliation
Pregnant or lactating
Exclusions specific to type of surgical repair
Apical muscular VSD
ToF with pulmonary atresia
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