CClinicalTrials.gg
Status unknownNCT00429884Updated Jul 2, 2008

Studies of Disorders and Mechanisms Related to Atrial Fibrillation Before and After DC-Conversion.

An observational study in Atrial Fibrillation, sponsored by Umeå University. Status unknown at 1 site in Sweden. Per ClinicalTrials.gov, last updated 2008-07-02.

Sponsored by Umeå University · Observational

The sponsor has not verified this record recently (last verified Jun 2008), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Time perspective
Prospective
Sex
All
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Study summary

The purpose of this study is to investigate if breathing disorders are related to atrial fibrillation and if it is possible to predict recurrence of atrial fibrillation after DC-conversion by changes in heart rate variability and 24 hour ECG.

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Conditions studied

  • Atrial Fibrillation

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Keywords

  • Atrial fibrillation
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In context

Atrial Fibrillation

3,870 studies on the registry are indexed under Atrial Fibrillation; 924 are open to participants now.

Browse Atrial Fibrillation studies →

Lead sponsor

Umeå University is the lead sponsor of 263 studies on the registry; 60 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • persistent atrial fibrillation
  • scheduled for electrical cardioversion

Exclusion criteria

Exclusion Criteria:

  • known obstructive sleep apnea
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Study design

Time perspective
Prospective
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Study locations

1 of 1 sites recruiting
  • Heart Centre, Umeå University Hospital
    Umeå, 90185, Sweden
    Recruiting
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References and documents

Publications

  • Hoglund N, Sahlin C, Kesek M, Jensen SM, Franklin KA. Cardioversion of atrial fibrillation does not affect obstructive sleep apnea. Ups J Med Sci. 2017 Jun;122(2):114-118. doi: 10.1080/03009734.2017.1291545. Epub 2017 Mar 14. PubMed 28291376 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 2, 2008, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00429884
Lead sponsor
Umeå University
First posted
Feb 1, 2007
Start date
Jan 2007
Last update
Jul 2, 2008

Study contacts

Niklas G Höglund, MD
Contact
niklas.hoglund@vll.se
+46907852729
Steen M Jensen, MD, PhD
Contact
steen.jensen@medicin.umu.se
+46907852729
Steen M Jensen, MD, PhD
principal investigator · Heart Centre, Umeå University Hospital
Niklas G Höglund, MD
principal investigator · Heart Centre, Umeå University Hospital
Karl Franklin, MD, PhD
principal investigator · Umeå University Hospital
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Jun 2008. You cannot join it, but the record below documents what was studied.

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