Columbia Technology Ventures

Catheter-based optical method for improving treatment of cardiac arrhythmias

This technology is a catheter-based optical method for ensuring proper catheter contact with cardiac tissue prior to radiofrequency ablation, in order to improve accuracy for cardiac arrhythmia treatment.

Unmet Need: High accuracy technique for guiding catheter ablation to treat arrhythmia

Catheter ablation is the standard therapy for many common forms of arrhythmia (irregular heartbeat, rhythm or rate), and the only treatment that provides a potential cure. This method utilizes a catheter directed to the heart and applies radiofrequency ablation (RFA) to destroy damaged regions of cardiac tissue that may be causing the arrhythmia. However, the outcomes of this method are variable and many patients require two or more surgeries to successfully treat the arrhythmia, as the success of treatment is reliant on contact quality between the catheter and cardiac tissue. There is a need for innovative methods that can determine proper contact between the catheter and cardiac tissue prior to RFA, in order to improve patient outcomes and treat arrhythmia.

The Technology: Optical strategy for assessing catheter contact prior to RFA

This technology determines whether the catheter is in proper contact with the cardiac tissue prior to RFA. Cardiac tissue is characterized and mapped using near-infrared optical techniques, and a machine learning algorithm determines if the catheter has made proper contact with the tissue. Taken together, this catheter-based optical method allows a surgeon to more accurately perform RFA, reduce surgical error, and ultimately improve patient outcomes by minimizing the need for follow-up procedures.

Preliminary validation experiments performed in human and pig hearts, ex vivo, determined that this technology enables characterization of cardiac tissues and improves guidance for RFA therapy.

Applications:

  • Targeted ablation of cardiac tissue to treat arrhythmias
  • Continuous imaging and characterization of cardiac tissue
  • Can be applied to the ablation of other tissues, such as cyst removal or tumor ablation
  • Monitoring of high intensity focused ultrasound, cryo-, or laser ablation surgeries

Advantages:

  • Improved accuracy of catheter-tissue contact and ablation
  • Reduces the need for follow-up procedures
  • Increases the chance for RFA success by minimizing surgical error

Lead Inventor:

Christine Hendon, Ph.D.

Patent Information:

Patent Status

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