CClinicalTrials.gg
CompletedNCT00488254Updated Apr 14, 2011

The Long QT Syndrome in Pregnancy

An observational study in Long QT Syndrome, sponsored by University of British Columbia. Completed at 1 site in Canada. Open to female participants. Per ClinicalTrials.gov, last updated 2011-04-14.

Sponsored by University of British Columbia · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
12
Sex
Female
01

Study summary

Long QT Syndrome (LQTS) is a disease of young adults and can affect women of child bearing age. Suffers of LQTS are at risk of ventricular dysrhythmias including torsades de pointes and ventricular fibrillation.

Pregnancy increases the chance that any mother may have an abnormal heart rhythm or arrhythmia. This chance is higher with the LQTS. There are only a few reported cases of women with the LQTS having a baby in the medical literature. This can make it difficult for the doctor caring for a pregnant woman with the long QT syndrome - especially should they need an anesthetic.

We would like to study as many women who have had a baby who have the long QT syndrome to give us a better idea of whether there are any arrhythmias occurring at the time of delivery.

Read the detailed description

This will be a retrospective analysis of all LQTS women managed at St. Paul's or BC Women's who have been pregnant in the last 5 years. These two hospitals both have a provincial role in the care of pregnant women, BC Women's as the designated provincial tertiary maternity care referral centre, and St. Paul's through its provincial PATCH clinic. Using the data from these two centres should capture the majority of LQTS cases in parturients in the province. We will search for these women from the Department of Anesthesia BC Women's consult database, the St. Paul's Cardiac Obstetrical Care database, and BC Women's Health Records using International Classification of Diseases - 10 coding for long QT. Then, after obtaining patient consent, review the charts collecting data using the data entry form. The cases will then be compared and any conclusions into the different anesthetic managements made.

02

Conditions studied

  • Long QT Syndrome

Keywords

  • Long QT Syndrome
  • Romano Ward
  • Jervell-Lange Nielson Syndrome
03

In context

Long QT Syndrome

95 studies on the registry are indexed under Long QT Syndrome; 20 are open to participants now.

This study's planned enrollment of 12 is below the median of 150 across 48 observational studies indexed under Long QT Syndrome.

Browse Long QT Syndrome studies →

Lead sponsor

University of British Columbia is the lead sponsor of 1,309 studies on the registry; 253 are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 1 (17%) have results posted.

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

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
Female
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Women managed at St. Paul's or BC Women's, Vancouver, who have been pregnant in the last 5 years

Inclusion criteria

  • Pregnant women with diagnoses of Long QT Syndrome, Romano Ward and Jervell - Lange Nielson Syndrome who delivered at BC Women's Hospital or St Paul's Hospital.

Exclusion criteria

Exclusion Criteria:

  • Non consent to participation in the study
  • Age less than 19
  • Non English speaker
05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
12 participants (estimated)
06

Study locations

1 site
  • BC Women's Hospital
    Vancouver, British Columbia, Canada
07

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 14, 2011, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
08

Registry details

Key details

Study ID
NCT00488254
Lead sponsor
University of British Columbia
First posted
Jun 20, 2007
Start date
Jun 2007
Completion
Apr 2008
Last update
Apr 14, 2011

Study contacts

Roanne Preston, MD
principal investigator · University of British Columbia
Elizabeth Drake, MD
study director · University of British Columbia
Joanne Douglas, MD
study director · University of British Columbia
Marla Kiess, MD
study director · University of British Columbia
Stanley Tung, MD
study director · University of British Columbia

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2011. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion