Evaluation of vascular conjunctivitis in patients with microvascular angina

Microvascular angina (MVA) is defined as angina pectoris caused by abnormalities of small coronary arteries, and is characterized by exertion chest pain and evidence of myocardial ischemia with a non-invasive stress test, the coronary arteries can appear normal or nearly normal by angiography. Bulbar microscopy is the method used in the study of microcirculation in the bulbar conjunctiva. Disturbances in microcirculation are detected according to bulbar microscopy in patients with microvascular angina.

The first study group consisted of 10 patients with MVA. The second group consisted of 7 patients with documented constrictive atherosclerosis coronary arteries (CAC).

The study showed that extravascular conjunctival index in patients with MBC was 1.6 points, in patients of CAC group it was 3.9 points. Intravascular conjunctival index of the first group of patients was 3.5 points, and in the second group - 3.8 points. Conjunctival vascular index in the group of patients with MVA was 8.0 points, in patients with CAC it was 5.8 points. The total conjunctival index in patients with MVA was 12.5 points, whereas the CAC group had 19 points.

Conclusions

Extravascular conjunctival index exceeds the normal meaning only in patients with CAC, in patients with MVA it was within normal limits. In the group of patients with MVA abnormal pulsation in the capillaries of the conjunctiva is often detected based on the results of the bulbar microscopy, which indicates the presence of obstructive blood flow through the capillaries arising from microcirculation impairment, vascular tone and aggregation disorders.