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Evaluate the Efficiency Impact of Conducting Active Temperature Management During Cardiac Cryoablation Procedures

2019-09-17 02:47:30 | BioPortfolio

Summary

Left atrial catheter ablation including pulmonary vein isolation is a standard therapy in the management of symptomatic atrial fibrillation; however thermal esophageal injury is a known potential consequence of this procedure. Delivery of radiofrequency (RF) energy necessary to perform left atrial ablation has the potential to cause injury to the nearby esophagus including ulceration, hematoma, spasm, esophageal motility disorders, and, in the most extreme case, atrial-esophageal fistula.Esophageal mucosal lesions are the likely precursor to AEF, and esophageal mucosal lesions have been detected on post-ablation endoscopy after pulmonary vein isolation with an incidence ranging from 3% to 60%.

Active esophageal cooling during RF ablation as a means of esophageal injury prevention has been investigated through mathematical models, pre-clinical studies, and in clinical trials. Existing data support the efficacy of this approach, but the practice has not been widely adopted due to lack of a commercially available device.

The aim of this study is to evaluate the impact on procedural efficiency of ablation procedures performed using esophageal heat transfer to warm the esophagus during left atrial cryoablation.

Description

This study is a prospective, pilot study using the Attune Medical ensoETM esophageal heat transfer device to actively warm the esophagus during cryoablation procedures. This design is appropriate to gather the data needed regarding overall procedural time, compare this to historical controls, and estimate a sample size for a larger study powered for statistical significance.

Once patient consent is obtained, the subject will undergo preparation and anesthesia procedures following standard practice. Once the patient is intubated, the esophageal heat transfer device will be placed into the esophagus according to the IFU. The device will remain in place until the ablation procedure is completed and will be removed before extubation. Left atrial cryoablation using the standard approach will be performed with the ensoETM set at a temperature of 42 degrees C.

All patients will be followed up in total for 6 weeks (Long Term FU visit) after the procedure to document any clinical complication related to thermal esophageal injuries if applicable.

Study Design

Conditions

Atrial Fibrillation

Intervention

Esophageal warming device (Attune Medical, Chicago, IL

Location

Winchester Medical Center
Winchester
Virginia
United States
22601

Status

Recruiting

Source

Advanced Cooling Therapy, LLC

Results (where available)

View Results

Links

Published on BioPortfolio: 2019-09-17T02:47:30-0400

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Medical and Biotech [MESH] Definitions

Rapid, irregular atrial contractions caused by a block of electrical impulse conduction in the right atrium and a reentrant wave front traveling up the inter-atrial septum and down the right atrial free wall or vice versa. Unlike ATRIAL FIBRILLATION which is caused by abnormal impulse generation, typical atrial flutter is caused by abnormal impulse conduction. As in atrial fibrillation, patients with atrial flutter cannot effectively pump blood into the lower chambers of the heart (HEART VENTRICLES).

Long-term changes in the electrophysiological parameters and/or anatomical structures of the HEART ATRIA that result from prolonged changes in atrial rate, often associated with ATRIAL FIBRILLATION or long periods of intense EXERCISE.

Removal of a MEDICAL DEVICE from the market due to the identification of an intrinsic property of the device that results in a serious risk to public health.

A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone DIGOXIGENIN. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in ATRIAL FIBRILLATION and in the management of congestive heart failure with atrial fibrillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666)

Removal of a MEDICAL DEVICE from the market due to a problem occurring in the manufacture or distribution of the product.

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