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Assessment of Left Atrial Mechanical Function With a True 3D Ultrasouns Arry and Comparison With the Transthoracic and Transesophageal Echocardiography

NCT03331029 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2019-10-08

No results posted yet for this study

Summary

Chronic atrial fibrillation is a challenging arrhythmia requiring additional radiofrequency ablation besides pulmonary vein isolation. Atrial contractility in these patients is often impaired. Until now mapping catheters were used on virtual geometry maps of left atrium. However, changes in atrial volume cannot be assessed with these systems Assessments of atrial volumes with echocardiography relies on 2D and 3D measurements and modeling. The AcQMapTM 3D High Resolution Imaging and Mapping System (AcQMap) has a unique 3D array of ultrasound crystals, which can measure true 3D dimensions of the heart chamber. For the first time, true atrial volumes can be measured. Changing from atrial fibrillation to sinus rhythm causes changes in atrial volume and might be associated with quantitative systolic and diastolic function of the left ventricle measured with the Transesophageal Echocardiography.

Conditions

  • Comparison of 3D Monitored Changes of Left Atrial Volume Before and After Ablation With Conventional Transesophageal Echocardiography

Interventions

DEVICE

transesophageal investigation

Comparison of 3D ultrasound with transesophageal echocardiography

Sponsors & Collaborators

  • Klinik Hirslanden, Zurich

    lead OTHER

Principal Investigators

  • Werner Baulig, MD · Klinik Im Park, Hirslanden, Zürich, Switzerland

Study Design

Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
90 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2017-11-01
Primary Completion
2019-10-31
Completion
2019-12-31

Countries

  • Switzerland

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03331029 on ClinicalTrials.gov