Periventricular White Matter Hyperintensities in Cerebral Amyloid Angiopathy and Hypertensive Arteriopathy

Completed

• Conditions: Cerebral Amyloid Angiopathy; Hypertensive Arteriopathy
• Interventions: Other: None, pure observational study

• Registration Number: NCT05486897
• Lead Sponsor: Centre Hospitalier Universitaire de Nīmes

Brief Summary

White matter hyperintensities (WMH) are one of the small vessel disease-related MRI characteristics of both cerebral amyloid angiopathy (CAA) and hypertensive arteriopathy (HA). WMH tend to show a peri-basal ganglia pattern in HA, whereas a multiple subcortical spots pattern can be observed in CAA. Periventricular WMH (PVWMH) have been reported to be posterior predominant using a semiautomated segmentation method and logarithmic transformation, not used in daily clinical practice. In these studies including CAA patients, patients initially presented with haemorrhage-related symptoms. In another study analysing PVWMH and cerebral amyloid evidence in patients with mild cognitive impairment, frontal PVWMH burden was associated with high uptake on florbetapir-PET whereas parietal and occipital PVWMH burden was associated with low CSF-amyloid-beta.

The aim of this study is the descriptive comparative analysis of the distribution of PVWMH between CAA and HA patients with radiological tools available in daily practice.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2022-08-02
• Study First Submitted QC: 2022-08-02
• Study First Posted: 2022-08-04
• Study Start: 2022-09-05
• Primary Completion: 2023-12-15
• Study Completion: 2023-12-15
• Status Verified: 2024-01
• Last Update Submitted: 2024-01-12
• Last Update Posted: 2024-01-16

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 315

Inclusion Criteria

CAA and HA patients, managed at Nîmes University Hospital between January 2015 and March 2022.

Exclusion Criteria

CAA and HA patients, treated at the CHU of Nîmes between January 2015 and March 2022, not objecting to the use of their health data

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Hypertensive arteriopathy	None, pure observational study	Patients with hypertensive arteriopathy
cerebral amyloid angiopathy	None, pure observational study	Patient with cerebral amyloid angiopathy

Primary Outcome Measures

Name	Time	Method
Distribution of PVWMH	Base line, Day 0	Maximal distance between the outer PVWMH border and the border of the lateral ventricle (on the axis oriented at 90° to the border of the ventricle)
Distribution of PVWMH - total PVWMH extent.	Base line, Day 0	The sum of the PVWMH measurements around the four ventricles horns (i.e. bilateral anterior and posteriors horns) resulted in total PVWMH extent.
Corpus callosum (CC) WMH	Base line, Day 0	Distance between the border of the third ventricle and the outer border of the WMH on the rostro-caudal axis, resulting in anterior and posterior CC-PVWMH extent measurements.
Corpus callosum (CC) WMH - total CC-PVWMH extent.	Base line, Day 0	The sum of the anterior and posterior CC-PVWMH measurements resulted in the total CC-PVWMH extent.
Anterior PVWMH	Base line, Day 0	Comparison of anterior PVWMH between CAA group and HA group.
Posterior PVWMH	Base line, Day 0	Comparison of posterior PVWMH between CAA group and HA group.
Total PVWMH	Base line, Day 0	Comparison of total PVWMH between CAA group and HA group.
anterior CC-PVWMH	Base line, Day 0	Comparison of anterior CC-PVWMH between CAA group and HA group.
Total PVWMH and posterior/anterior CC-PVWMH ratio	Base line, Day 0	Comparison of total PVWMH and posterior/anterior CC-PVWMH ratio between CAA group and HA group.
Posterior/anterior PVWMH ratio	Base line, Day 0	Comparison of the posterior/anterior PVWMH ratio between CAA and HA groups.
Posterior CC-PVWMH	Base line, Day 0	Comparison of posterior CC-PVWMH between CAA group and HA group.
Ratios	base line, day 0	Calcul of posterior/anterior ratios for both the PVWMH and CC-PVWMH

Trial Locations

Locations (1)

CHU de Nîmes; 🇫🇷 Nîmes, France