Fall, Fracture, Stroke (CVA) or TIA
Conditions
Keywords
high-resolution peripheral quantitative Computer Tomography, Bone microstructure
Brief summary
The sudden biomechanical inactivation, direct neuro-humoral effects and sustained systemic stress reaction, which commonly occur after stroke or TIA, all may be of relevance in triggering alterations in bone metabolism and remodelling of bone microstructure. The objectives of this observational pilot study are to characterize falls and fractures and their circumstances (sex and age specific incidence, time course, risk conditions, localization) in ischemic stroke patients, study changes in the bone microstructure after ischemic stroke supported by high-resolution peripheral quantitative Computer Tomography, unravel a molecular mechanisms underlying the increased fracture risk (focus on Wnt-signaling and ß-adrenergic projection), establish risk factors to estimate the risk of falls based on information from gait analysis as well as construct deep learning algorithms to identify bone microstructure parameters for predicting fractures.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* Inclusion in the STROKE-CARD Registry Study * Modified Rankin Scale (mRS) \< 5 * Provision of signed and dated informed consent form * Willingness to comply with all study procedures and ability to participate in the study over the complete study duration
Exclusion criteria
* Persistent motor deficit before the onset event * Not able to walk without walking aid or not able to put the full bodyweight on either leg before the onset event * Medical history of stroke * Premedication with Corticosteroids for more than 6 Weeks or Pioglitazone or Bisphosphonate within the last 12 months * Limb amputation * BMI \< 18,5 kg/m2 or \> 35 kg/m2 * Present or previous fracture in the distal Radius or Tibia interfering with HR-pQCT * Movement disorder interfering with HR-pQCT imaging * Women of childbearing potential
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Number of patients with and without fractures | 12 months |
Other
| Measure | Time frame | Description |
|---|---|---|
| Changes in imaging bone structure between the baseline and follow-up in all extremities as measured by quantitative CT imaging | 12 months | — |
| Number and circumstances (housing situation, concomitant medication, level of immobility,...) of falls between baseline and one-year follow-up | 12 months | Due to the observational nature of the study, these outcome parameters will be published with descriptive statistics |
| Change in blood bone biomarkers (as mentioned before) between baseline and follow-up | 12 months | CTX1 und CTX 2, Osteocalcin, TRAP5b, Bone Alkaline Phosphatase, Sclerostin, Periostin, RANKL-OPG-Ratio |
| Circumstances (housing situation, concomitant medication, level of immobility,...) of fractures during the twelve-month follow up | 12 months | — |
Countries
Austria