Microvascular assessment in Behçet disease: videocapillaroscopic study

Area of Science:

• Vascular Biology
• Rheumatology
• Ophthalmology

Background:

• Behcet disease (BD) is a multisystemic inflammatory disorder.
• Microvascular abnormalities are implicated in BD pathogenesis.
• Intravital videocapillaroscopy (VCP) offers a direct method to visualize microcirculation.

Purpose of the Study:

• To evaluate microvascular changes in BD patients using intravital videocapillaroscopy.
• To compare microcirculatory parameters between BD patients and healthy controls.
• To assess the diagnostic and prognostic potential of VCP in BD.

Main Methods:

• A cohort of 16 Behcet disease patients was compared to age- and sex-matched healthy controls.
• Intravital videocapillaroscopy (VCP) was performed on peripheral and conjunctival microvasculature.
• Morphological (microaneurysms, megacapillaries) and quantitative (sludging, vessel diameter) parameters were analyzed.

Main Results:

• VCP detected significant morphological alterations in a high percentage of BD patients in both peripheral and conjunctival areas.
• Quantitative analysis revealed significant changes in sludging, capillary loop length, and arteriole/venule diameter in BD patients.
• Vessel involvement affected both the number and structure of microvessels in BD.

Conclusions:

• Behcet disease is associated with a substantial rearrangement of microcirculation.
• Videocapillaroscopy provides valuable qualitative and quantitative data on vascular damage in BD.
• VCP holds potential for diagnosing and prognosing the systemic vascular involvement in Behcet disease.