Use of NAVA-catheter Positioning Screen to Identify Different Cardiac Arrhythmias

The population will be a convenience sample of adults with various arrhythmias who are
scheduled to undergo an electrophysiology study and-or ablation (EPSA) under general
anesthesia (GETA) at The Toledo Hospital.

After the patient has been successfully intubated at the beginning of the procedure, a
trained nurse, using standard technique for placement of a oro/nasogastric tube, will place
an appropriately sized NAVA catheter in the patient. The lumen of the NAVA tube can be used
as a conventional oro/nasogastric tube and the electrodes will be connected to the Servo-I
ventilator. Although the Servo-I is a ventilator, it will be used only as a monitor for this
study. The position of the nasogastric tube will then be refined using the catheter
positioning screen as needed.

During the course of the EPSA various arrhythmias may become evident. When these are noted,
screen shots will be saved on the Servo-i monitor. Surface and electrogram recordings will
be saved at the same time. The NAVA catheter will be disconnected from the Servo-I monitor
during the ablation part of the procedure to prevent inadvertent damage to the monitor.

Inclusion Criteria:

- Cardiac arrhythmia

Exclusion Criteria:

- Pregnancy