Changes of Left Atrial Function & Quality of Life After Transcatheter

Status Completed

Clinical Trial Summary

A total of 105 (AF) patients with atrial fibrillation are scheduled to undergo surgery and will be divided into three groups. Left atrial appendage occlusion ((LAAC)), radiofrequency ablation guided by three-dimensional mapping and LAAC combined with radiofrequency ablation were performed respectively (allocation ratio 1:1:1). All patients were examined by real-time three-dimensional and two-dimensional ultrasound before operation and 3, 6 and 12 months after operation, and the (LA) function of left atrium was measured. All ultrasound data will be stored and the professional director of the ultrasound room will be invited to conduct quantitative analysis. Ultrasonic examination indexes include: anterior and posterior diameter of left atrium, left atrial ejection fraction and so on. All patients underwent transesophageal echocardiography before and 3 months after operation. The results were interpreted by 2 experienced ultrasound doctors to measure the presence of left atrial thrombus, residual shunt and device-related thrombus. Blood samples were taken to detect B-type natriuretic peptide before operation, 1 day, 3-6 months and 12 months after operation. All patients underwent 6-minute walking test and quality of life score before operation and 3, 6 and 12 months after operation. At the same time, the thickness of crest in all patients was measured during operation. This study will clarify the changes of left atrial function and quality of life in patients with atrial fibrillation after LAAC. In addition, this study also observed the effect of radiofrequency ablation combined with LAAC on left atrial function and evaluated whether one-stop surgery was superior to simple occlusion or ablation, and the above results were analyzed. The patients were followed up for an average of one year, and the changes of left atrial function, quality of life and embolic events were analyzed.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Atrial Fibrillation

Clinical Trial Details

NCT number	NCT04376606
Study type	Interventional
Source	The Second Hospital of Hebei Medical University
Contact
Status	Completed
Phase	N/A
Start date	February 28, 2020
Completion date	September 28, 2022

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Changes of Left Atrial Function and Quality of Life After Transcatheter Closure of Left Atrial Appendage in Patients With Atrial Fibrillation

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms