Use of Anticoagulant, and Associated Factors of Anticoagulant Refusal Atrial Fibrillation Patients

August 19, 2019 updated by: chen liujing, Prince of Wales Hospital, Shatin, Hong Kong

Prevalence of Use of Anticoagulant, and Associated Factors of Anticoagulant Refusal in Non-valvular Atrial Fibrillation Patients---- A Study in Hong Kong General Out-patient Clinic

Atrial fibrillation is a clinically significant cardiac arrhythmia that increases the risk of stroke by 3 to 4 times. Oral anticoagulation has been shown to mitigate stroke risk by two-thirds among patients with AF and is widely recommended in optimizing AF management.Direct oral anticoagulants have also been demonstrated to be superior to warfarin with respect to the risk of fatal bleeding and stroke prevention.

However, the previous study finding highlighted a great gap between current guidelines and the clinical management of AF .Nonetheless, the decision for anticoagulant use is not straightforward.It is worth to investigate the updated prevalence of anticoagulant use, the reasons for not receiving anticoagulant, and the factors independently associated with anticoagulant refusal in patients with non-valvular atrial fibrillation.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Anticipated)

300

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Hong Kong, Hong Kong
        • LIAO, Jiawei

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

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

all of the documented atrial fibrillation patients having regular follow up in GOPC in the study period

Description

Inclusion Criteria:

  • diagnosis as atrial fibrillation
  • aged ≧18 years
  • able to given consent

Exclusion Criteria:

  • Unable/unwillingness to sign informed consent to study
  • mechanical heart valve
  • moderate-to-severe mitral stenosis
  • Transient atrial fibrillation from reversible cause (e.g., during respiratory tract infection or bronchospasm)
  • pregnancy
  • hospitalization within 1 month prior to inclusion in the study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Ecologic or Community
  • Time Perspectives: Cross-Sectional

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The prevalence of anticoagulant use in non-valvular atrial fibrillation patients
Time Frame: August 2019 to March 2020
calculate the prevalence of anticoagulant use in non-valvular atrial fibrillation patients
August 2019 to March 2020

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
the rate of the refusal of anticoagulant use
Time Frame: August 2019 to March 2020
calculate the rate of refusal of anticoagulant use in the eligible non-valvular atrial fibrillation patients
August 2019 to March 2020

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

August 23, 2019

Primary Completion (Anticipated)

March 23, 2020

Study Completion (Anticipated)

March 23, 2020

Study Registration Dates

First Submitted

August 16, 2019

First Submitted That Met QC Criteria

August 19, 2019

First Posted (Actual)

August 20, 2019

Study Record Updates

Last Update Posted (Actual)

August 20, 2019

Last Update Submitted That Met QC Criteria

August 19, 2019

Last Verified

August 1, 2019

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • version1 last update 30/7/2019

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

IPD Plan Description

no Conflict of interest

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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