The Effect of Simulated Obstructive Apnoea and Hypopnoea on Heart Rhythm in Patients With Paroxysmal Atrial Fibrillation

NCT ID: NCT01796080

Last Updated: 2013-12-23

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

45 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-10-31

Study Completion Date

2013-12-31

Brief Summary

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In this randomised controlled cross-over study we will investigate whether intrathoracic pressure changes induced by simulated obstructive apnoea and hypopnoea trigger premature supraventricular and ventricular contractions as well as atrial fibrillation in patients with paroxysmal atrial fibrillation.

Detailed Description

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Conditions

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Patients With Paroxysmal Atrial Fibrillation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Mueller manoeuvre

Mueller manoeuvre lasting for 20 seconds

Group Type ACTIVE_COMPARATOR

Mueller manoeuvre

Intervention Type OTHER

Inspiratory threshold

One continuous inspiration through an inspiratory threshold load for 20 seconds

Group Type ACTIVE_COMPARATOR

Inspiratory threshold

Intervention Type OTHER

Expiratory apnoea

Expiratory apnoea (without respiratory effort) lasting for 20 seconds

Group Type ACTIVE_COMPARATOR

Expiratory apnoea

Intervention Type OTHER

Steady state normal breathing

Steady state normal breathing for 20 seconds

Group Type SHAM_COMPARATOR

Steady state normal breathing

Intervention Type OTHER

Interventions

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Mueller manoeuvre

Intervention Type OTHER

Inspiratory threshold

Intervention Type OTHER

Expiratory apnoea

Intervention Type OTHER

Steady state normal breathing

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Age 18-75 years
* History of ECG-documented paroxysmal atrial fibrillation within the last 12 months and currently in sinus rhythm
* Informed consent

Exclusion Criteria

* Mental or physical disability precluding informed consent or compliance with the protocol
* Amiodarone or Dronedarone medication
* Previous radiofrequency ablation for atrial fibrillation
* Severe structural heart disease
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Zurich

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Malcolm Kohler, Prof MD

Role: PRINCIPAL_INVESTIGATOR

University Hospital Zurich, Division of Pneumology

Locations

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University Hospital Zurich, Division of Pneumology

Zurich, Canton of Zurich, Switzerland

Site Status

Countries

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Switzerland

Other Identifiers

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PAF_V1.1 (05.07.2012)

Identifier Type: -

Identifier Source: org_study_id