Primary objective: To determine whether pregnancy increases the risk of recurrent CeAD and delayed stroke in women with prior CeAD based on long-term data. Methods: Multicentric, observational case-control study based on pooled individual patient data from several stroke centers. Primary endpoint: Primary composite outcome measure includes the following outcomes: (i) occurrence of recurrent CeAD, (ii) occurrence of ischemic or hemorrhagic stroke, (iii) death.
Background: Cervical artery dissection (CeAD) is a leading cause of stroke in women of childbearing age. Among the population with an initial CeAD, about 9% show a recurrence event (a range from 0 to 25% has been reported). Recurrence of CeAD can occur for several years after the initial event. CeAD has been shown to occur in association with pregnancy, and the postpartum period, yet it remains unclear whether pregnancy increases the risk of recurrence or delayed stroke. Previous studies on this subject are either based on small sample sizes or lack long-term data. Objective: The investigators want to determine whether pregnancy increases the risk of recurrent CeAD and delayed stroke in women with prior CeAD based on long-term data. Furthermore, it will be investigated whether the mode of delivery affects recurrence and if dissections occurred during a particular phase of a woman's reproductive process. The investigators will also investigate if women actively decided against another pregnancy due to the initial CeAD. Methods: This study will be a multicenter, exploratory case-control study using pooled individual patient data from several stroke centers. The data will be obtained through review of medical records and patient interviews. The study will include all women with any prior CeAD who have had long-term follow-up (at least 6 months, with no upper limit), including information about pregnancy and recurrence of CeAD. Primary endpoint is a composite outcome measure which consists of (i) occurrence of recurrent CeAD, (ii) occurrence of ischemic or hemorrhagic stroke, (iii) death. Secondary endpoints are the individual components of the primary endpoint and functional outcome assessed by the modified Ranking scale. Statistical analysis will be used to determine the odds of the primary and secondary endpoints in women who had subsequent pregnancies compared to those who did not.
Study Type
OBSERVATIONAL
Enrollment
1,000
University of Utah
Salt Lake City, Utah, United States
RECRUITINGUniversity of Virginia
Charlottesville, Virginia, United States
Number of participants with composite outcome measure - recurrent CeAD, ischemic stroke, hemorrhagic stroke and/or death
The composite outcome measure includes the following outcome measures during the follow-up: (i) occurence of recurrent cervical artery dissection (CeAD), (ii) occurrence of any ischemic stroke, (iii) occurrence of any hemorrhagic stroke, (iv) death.
Time frame: From date of first CeAD until date of latest follow-up assessed up to 35 years
Number of participants with recurrent cervical artery dissection
assessed by medical history or clinical suspicion with confirmation by cerebrovascular imaging (MRI, MRI angiography, CT, CT angiography, digital subtraction angiography and/or ultrasound)
Time frame: From date of first CeAD until date of latest follow-up assessed up to 35 years
Number of participants with new ischemic stroke
assessed by medical history or clinical suspicion with confirmation by cerebrovascular imaging (MRI and/or CT)
Time frame: From date of first CeAD until date of latest follow-up assessed up to 35 years
Number of participants with new hemorrhagic stroke
Intracerebral hemorrhage or subarachnoid hemorrhage assessed by medical history or clinical suspicion with confirmation by cerebrovascular imaging (MRI and/or CT)
Time frame: From date of first CeAD until date of latest follow-up assessed up to 35 years
Number of participants with death
Time frame: From date of first CeAD until date of latest follow-up assessed up to 35 years
Functional outcome as assessed by modified Rankin Scale (mRS)
The scale runs from 0-6, running from perfect health without symptoms to death. 0 - No symptoms. 1. \- No significant disability. Able to carry out all usual activities, despite some symptoms. 2. \- Slight disability. Able to look after own affairs without assistance, but unable to carry out all previous activities. 3. \- Moderate disability. Requires some help, but able to walk unassisted. 4. \- Moderately severe disability. Unable to attend to own bodily needs without assistance, and unable to walk unassisted. 5. \- Severe disability. Requires constant nursing care and attention, bedridden, incontinent. 6. \- Dead.
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Stroke Unit Sanatorio Allende
Córdoba, Argentina
RECRUITINGDepartment of Neurology, Medical University of Innsbruck
Innsbruck, Tyrol, Austria
RECRUITINGHelsinki University Central Hospital
Helsinki, Finland
RECRUITINGCharité Universitätsmedizin, Centrum für Schlaganfallforschung
Berlin, Germany
RECRUITINGNeurologische Klinik und Poliklinik, LMU Klinikum Campus Großhadern
Munich, Germany
RECRUITINGHadassah-Hebrew University Medical Center
Jerusalem, Israel
RECRUITINGNeurology Clinic, University of Brescia
Brescia, Italy
RECRUITINGStroke Clinic, National Institute of Neurology and Neurosurgery Manuel Velasco Suárez
Mexico City, Mexico
RECRUITING...and 2 more locations
Time frame: At date of latest, individual follow-up assessed up to 35 years after first CeAD