The Impact of Atrial Pressure Change Before and After Combined Procedure

The Impact of Atrial Pressure Change Before and After One-stop Procedure Combining Catheter Ablation and Left Atrial Appendage Closure on the Prognosis of Patients With Atrial Fibrillation

One-stop procedure combining catheter ablation (CA) and left atrial appendage closure (LAAC) has been a feasible treatment for patients with atrial fibrillation at high risk of stroke and/or bleeding. Although it could achieve considerable rhythm control and stroke prophylaxis, a number of patients has experienced progressive heart failure after the procedure. Notably, previous studies indicate that both pulmonary vein isolation by CA and LAAC could significantly increase left atrial pressure, while currently no study has investigated left atrial pressure change in patients underwent combined procedure. The investigators hypothesise that combined procedure would significantly increase left atrial pressure and subsequently deteriorate cardiac function. Therefore, the investigators aim to measure the left and right atrial pressure change before and after CA and LAAC in combined procedure, and investigate the influence of the pressure change on clinical outcomes.

Study Overview

• Status: Recruiting
• Conditions: Heart Failure; Atrial Fibrillation
• Intervention / Treatment: Diagnostic test: Atrial pressure measurement using transseptal puncture sheath

Detailed Description

1. Study aim. This study was designed to measure the left and right atrial pressure change before and after catheter ablation (CA) and left atrial appendage closure (LAAC) combining procedure, and investigate the influence of the pressure change on clinical outcomes.

2. Subject selection. This study is designed to recruit patients diagnosed with atrial fibrillation and planned to undergo combined procedure. Primary inclusion criteria are:

   i. Atrial fibrillation recorded by 12-lead ECG or Holter that last for longer than 30 seconds within the preceding 6 months; ii. Eligible for left atrial appendage closure, that meet at least one of the followings:

   1. At high risk of stroke (CHA2DS2-VASc score≥3 in female, ≥2 in male) and/or bleeding (HAS-BLED score≥3);
   2. Contraindicated to oral anticoagulation (OAC);
   3. Refused OAC treatment albeit comprehensively informed of the necessity and benefits of OAC treatment.

3. Procedure detail. All the patients recruited is planned to undergo combined procedure. CA is performed before LAAC. For CA, the energy source is optional (either radiofrequency or cryoenergy). And ablation should be performed for pulmonary vein isolation only. For LAAC, the occluder type is optional (either plug or pacifier occluder), and intracardiac echocardiography or transesophageal echocardiography (TEE) is optional.

   For atrial pressure measurement, right atrial pressure should be measured before transseptal puncture and after combined procedure is accomplished. Left atrial pressure should be measured at 3 timepoints: after transseptal puncture, after pulmonary vein isolation and after LAAC. Atrial pressure is measured via Swartz transseptal puncture sheath. And at each timepoint, atrial pressure should be recorded at 1min, 3min, and 5min after the placement of the sheath.

4. Follow-up. study endpoint includes a primary composite endpoint of rehospitalization due to heart failure and death due to cardiovascular disease, and secondary endpoints including: 1. all-cause mortality 2. major cardiovascular adverse event 3. rehospitalization due to cardiovascular diseases 4. recurrence of atrial arrhythmia 5. stoke/transient ischemic attack 6. echocardiographic measurement 7. quality of life evaluation 8. cardiac function evaluation 9. evaluation of left atrial appendage closure. Patients are required to have outpatient follow-up at 3rd month, 12th month, and every year since then. The anti-thromboembolic regimen should follow: 3-month OAC treatment and 3-month double anti-platelet therapy and lifelong single anti-platelet therapy. For LAAC follow-up, either TEE or CTA is scheduled to perform in the 3rd month after procedure.

• Study Type: Observational
• Enrollment (Anticipated): 100

Contacts and Locations

• Study Contact: Name: Dongdong Zhao; Phone Number: +86 18917684008; Email: zhaodd@tongji.edu.cn
• Study Contact Backup: Name: Zhongyuan Ren; Phone Number: +86 18862186450; Email: 2111714@tongji.edu.cn

Study Locations

• China
  • Shanghai
    • Shanghai, Shanghai, China, 200072
      • Recruiting
      • Department of Cardiology, Shanghai Tenth People's Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

The study is designed to investigate the change of atrial pressure before and after combined procedure of catheter ablation and left atrial appendage closure, and evaluate its influence on prognosis. This study aims to recruit patients diagnosed with atrial fibrillation who are eligible for combined procedure. Patients with paroxysmal, persistent, or longstanding persistent AF are included, whether it is new-onset or drug refractory.

Description

Inclusion Criteria:

• Atrial fibrillation recorded by 12-lead ECG or Holter that last for longer than 30 seconds within the preceding 6 months;

• Eligible for left atrial appendage closure, that meet at least one of the followings:

  1. At high risk of stroke (CHA2DS2-VASc score≥3 in female, ≥2 in male) and/or bleeding (HAS-BLED score≥3);
  2. Contraindicated to oral anticoagulation (OAC);
  3. Refused OAC treatment albeit comprehensively informed of the necessity and benefits of OAC treatment.
• Capable of understanding and signing the informed consent form.
• Aged over 18 years.

Exclusion Criteria:

• Reversible causes of atrial fibrillation, including thyroid disorders, recent major surgery, trauma, acute alcoholic intoxication;
• Concomitant arrhythmia including atrial flutter, ventricular tachycardia;
• A previous history of atrial fibrillation surgery (MAZE surgery) or catheter ablation;
• A previous history of cardiac surgery including any valvular replacement, septal repair;
• A recent history of major cardiovascular disease within 3 months, including acute myocardial infarction, ventricular fibrillation;
• A history of congenital heart disease;
• A previous history of atrioventricular node ablation;
• A history of lobectomy due to any medical condition;
• Complicated by other diseases with life expectation <1 year;
• Women with childbearing potential;
• Participated in other interventional clinical trials that might affect prognosis;
• Unable to understand or give informed consent form.

Study Plan

How is the study designed?

Design Details

• Observational Models: Cohort
• Time Perspectives: Prospective

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Combined procedure; The whole cohort underwent combining procedure of catheter ablation and left atrial appendage closure, atrial pressure was measured before and after pulmonary vein isolation, and after left atrial appendage closure.	Diagnostic test: Atrial pressure measurement using transseptal puncture sheath; both left and right atrial pressure was measured using transseptal puncture sheath before and after combined procedure

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Composite endpoint	Rehospitalization due to heart failure and death due to cardiovascular disease	From date of inclusion until the date of first documented rehospitalization due to heart failure or date of death due to cardiovascular disease, whichever came first, assessed up to 60 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
All-cause mortality	death of any reason	From date of inclusion until the date of documented death of any reason, assessed up to 60 months
Major cardiovascular adverse event	cardiovascular events including myocardial infarction, malignant arrhythmia, acute heart failure, cardiac tamponade.	From date of inclusion until the date of first documented cardiovascular events mentioned above, assessed up to 60 months
Rehospitalization due to cardiovascular diseases	Rehospitalization due to any cardiovascular diseases	From date of inclusion until the date of first documented rehospitalization due to cardiovascular diseases, assessed up to 60 months
Early recurrence of atrial arrhythmia	Atrial tachycardia, atrial flutter, or atrial fibrillation that last for longer than 15 seconds recorded by ECG or Holter	From time of completion of combined procedure until the third month since the procedure
Recurrence of atrial arrhythmia	Atrial tachycardia, atrial flutter, or atrial fibrillation that last for longer than 15 seconds recorded by ECG or Holter	From the third month since the procedure until the date of recurrence of atrial arrhythmia as described above, assessed up to 60 months
Stoke/transient ischemic attack	Cerebral infarction, intracranial hemorrhage, or transient ischemic attack confirmed by CT/MRI	From date of inclusion until the date of first documented stoke/transient ischemic attack, assessed up to 60 months
Change from baseline echocardiographic measurement at 3 months	Echocardiographic measured left atrial parameters including left atrial volume, left atrial volume index, e, e' and left ventricle parameters including left ventricular ejection fraction, left ventricle systolic and diastolic diameter.	3 months after combined procedure
Change from baseline echocardiographic measurement at 1 year	Echocardiographic measured left atrial parameters including left atrial volume, left atrial volume index, e, e' and left ventricle parameters including left ventricular ejection fraction, left ventricle systolic and diastolic diameter.	1 year after combined procedure
Change from baseline echocardiographic measurement at 5 years	Echocardiographic measured left atrial parameters including left atrial volume, left atrial volume index, e, e' and left ventricle parameters including left ventricular ejection fraction, left ventricle systolic and diastolic diameter.	5 years after combined procedure
Change from baseline quality of life evaluation at 3 months	EQ-5D questionnaire evaluation of quality of life	3 months after combined procedure
Change from baseline quality of life evaluation at 1 year	EQ-5D questionnaire evaluation of quality of life	1 year after combined procedure
Change from baseline quality of life evaluation at 5 years	EQ-5D questionnaire evaluation of quality of life	5 years after combined procedure
Change from baseline walking distance of 6-min walk test at 3 months	Maximum walking distance measured from 6-min walk test	3 months after combined procedure
Change from baseline walking distance of 6-min walk test at 1 year	Maximum walking distance measured from 6-min walk test	1 year after combined procedure
Change from baseline walking distance of 6-min walk test at 5 years	Maximum walking distance measured from 6-min walk test	5 years after combined procedure
Evaluation of left atrial appendage closure at 3 months	Either transesophageal echocardiography or CTA evaluation of occluder position, residual flow, presence of thrombosis.	3 months after combined procedure

Collaborators and Investigators

• Sponsor: Shanghai 10th People's Hospital
• Investigators: Principal Investigator: Yawei Xu, Shanghai 10th People's Hospital

Study record dates

Study Major Dates

• Study Start (Actual): November 10, 2021
• Primary Completion (Anticipated): November 10, 2023
• Study Completion (Anticipated): November 10, 2027

Study Registration Dates

• First Submitted: September 20, 2021
• First Submitted That Met QC Criteria: October 21, 2021
• First Posted (Actual): November 3, 2021

Study Record Updates

• Last Update Posted (Actual): September 2, 2022
• Last Update Submitted That Met QC Criteria: August 30, 2022
• Last Verified: August 1, 2022

More Information

Terms related to this study

• Keywords: Catheter ablation; Cardiac function; Left atrial appendage closure; Left atrial pressure; combined procedure
• Additional Relevant MeSH Terms: Pathologic Processes; Heart Diseases; Cardiovascular Diseases; Arrhythmias, Cardiac; Atrial Fibrillation
• Other Study ID Numbers: APPREANCE-AF

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: Undecided

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No