Ultrasonography Evaluation of Diaphragm Kinetics in Patients Undergoing Atrial Fibrillation Ablation With Cryoballoon

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

80 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-01-23

Study Completion Date

2024-04-01

Brief Summary

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The purpose of this study to assess the diaphragm kinetics with Tissue Doppler Imaging in patients undergoing atrial fibrillation ablation with cryoballoon

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Detailed Description

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This study is designed to evaluate the diaphragm kinetics with ultrasonography parameters in patients who underwent pulmonary vein isolation (PVI) for atrial fibrillation (AF) by Cryoballoon. Due to the proximity of the pulmonary veins to the phrenic nerve, phrenic nerve paralysis can be seen rarely during the procedure. In contemporary practice, phrenic nerve damage is detected by visual monitoring of diaphragm movement as a result of pacing with high output by placing the intracardiac stimulation catheter at the level of the superior vena cava. However, subclinical nerve damage may be critical regarding respiratory functions, especially in patients with comorbidities. It has been shown in the literature that the evaluation of diaphragm kinetics with Tissue Doppler Imaging (TDI) can be used in effective ventilation monitoring and weaning. However, this technique has not been used in patients who have previously undergone cryoballoon therapy. It is aimed to investigate the positive or negative effects on diaphragm kinetics, as a very cost-effective and rapidly accessible technique, with the help of this technique.

Conditions

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Atrial Fibrillation Phrenic Nerve Paralysis

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Cryoballoon pulmonary vein isolation for atrial fibrillation ablation

Diaphragmatic kinetics of participants before and after pulmonary vein isolation will be evaluated with the Tissue Doppler and M Mode Imaging.

Tissue Doppler Imaging

Intervention Type DIAGNOSTIC_TEST

With tissue Doppler ultrasonography (TDI), the maximum contraction rate of the diaphragm, maximum relaxation rate, and integral against time will be examined.

M Mode Imaging

Intervention Type DIAGNOSTIC_TEST

Diaphragm displacement during inspiration and expiration will be measured with M mode imaging

Interventions

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Tissue Doppler Imaging

With tissue Doppler ultrasonography (TDI), the maximum contraction rate of the diaphragm, maximum relaxation rate, and integral against time will be examined.

Intervention Type DIAGNOSTIC_TEST

M Mode Imaging

Diaphragm displacement during inspiration and expiration will be measured with M mode imaging

Intervention Type DIAGNOSTIC_TEST

Other Intervention Names

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GE Vivid T8 Ultrasonography System GE Vivid T8 Ultrasonography System

Eligibility Criteria

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Inclusion Criteria

* Patients scheduled for AF ablation with a cryoballoon
* ≥18 years old
* Patients with interpretable diaphragm ultrasound before the operation
* Patients giving informed consent