UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000055187
Receipt number R000063053
Scientific Title Incidence and Electrical Characteristics of the Epicardial Connection Between the Pulmonary Veins and Adjacent Structures
Date of disclosure of the study information 2024/08/07
Last modified on 2024/08/07 14:32:42

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Basic information

Public title

Incidence and Electrical Characteristics of the Epicardial Connection Between the Pulmonary Veins and Adjacent Structures

Acronym

Incidence and Electrical Characteristics of the Epicardial Connection Between the Pulmonary Veins and Adjacent Structures

Scientific Title

Incidence and Electrical Characteristics of the Epicardial Connection Between the Pulmonary Veins and Adjacent Structures

Scientific Title:Acronym

Incidence and Electrical Characteristics of the Epicardial Connection Between the Pulmonary Veins and Adjacent Structures

Region

Japan


Condition

Condition

atrial fibrillation

Classification by specialty

Medicine in general Cardiology Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

In this study, we analyzed epicardial connection between the pulmonary veins and adjacent structures incidence and focused on their electrical characteristics.

Basic objectives2

Others

Basic objectives -Others

The presence of muscle bundles bridging the right pulmonary vein and right atrium on the epicardial side has been reported to be 21%. On the other hand, the presence of muscle bundles bridging the left pulmonary vein and left atrium on the epicardial side is also known, but there have been no reports examining the detailed frequency. We decided to analyze 100 consecutive cases of patients undergoing pulmonary vein isolation who were treated with high frequency and who were likely to be eligible for treatment.

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Frequency of muscle bundles running along the adventitia

Key secondary outcomes

The incidence of atrial fibrillation recurrence depending on the presence or absence of muscle bundles running along the epicardial side


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

20 years-old <=

Age-upper limit

100 years-old >=

Gender

Male and Female

Key inclusion criteria

The subjects were patients who underwent radiofrequency catheter ablation for atrial fibrillation at the relevant medical institution.

Key exclusion criteria

Patients who were in atrial fibrillation at the start of catheter ablation and did not return to sinus rhythm even after defibrillation.

Target sample size

100


Research contact person

Name of lead principal investigator

1st name Hiro
Middle name
Last name Yamasaki

Organization

Unversity of Tsukuba

Division name

Department of Cardiology

Zip code

305-8575

Address

1-1-1 Tennodai, Tsukuba, Ibaraki, Japan

TEL

029-853-3143

Email

hyamasaki@md.tsukuba.ac.jp


Public contact

Name of contact person

1st name Hiro
Middle name
Last name Yamasaki

Organization

Unversity of Tsukuba

Division name

Deparment of Cardiology

Zip code

305-8575

Address

1-1-1 Tennodai, Tsukuba, Ibaraki, Japan

TEL

029-853-3143

Homepage URL


Email

hyamasaki@md.tsukuba.ac.jp


Sponsor or person

Institute

Institute of Medicine, University of Tsukuba

Institute

Department

Personal name



Funding Source

Organization

Institute of Medicine, University of Tsukuba

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Tsukuba Clinical Resarch & Development Organization

Address

2-1-1 Amakubo, Tsukuba, Ibaraki, Japan

Tel

029-853-3914

Email

chiken@un.tsukuba.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2024 Year 08 Month 07 Day


Related information

URL releasing protocol


Publication of results

Partially published


Result

URL related to results and publications


Number of participants that the trial has enrolled

100

Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

No longer recruiting

Date of protocol fixation

2018 Year 04 Month 01 Day

Date of IRB

2019 Year 11 Month 29 Day

Anticipated trial start date

2018 Year 04 Month 01 Day

Last follow-up date

2025 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

The study subjects were patients who underwent radiofrequency catheter ablation for atrial fibrillation at affiliated hospitals between April 1, 2018 and March 31, 2020. This was a cohort study that retrospectively evaluated patient information.


Management information

Registered date

2024 Year 08 Month 07 Day

Last modified on

2024 Year 08 Month 07 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000063053