Data dynamics of angiogenesis visualization instrumental methods in patients with psoriasis during methotrexate therapy: Clinical and prognostic value of dermatoscopy and ultrasound dopplerography

Abstract

BACKGROUND: Pathological angiogenesis is one of the important pathogenetic links of psoriasis. At the same time, the prognostic significance of instrumental methods for studying the severity of angiogenesis in psoriatic plaques remains poorly understood.

AIM: Clinical assessment of the correlation between the dynamics of angiogenesis parameters (morphometric parameters of vascular glomeruli and Doppler blood flow in the skin and nail bed) and indicators of the methotrexate clinical efficacy during 12 months of therapy.

MATERIALS AND METHODS: The work is based on the clinical data analysis of 82 patients with moderate and severe psoriasis vulgaris in the acute stage, who were prescribed methotrexate after initial examination. Patients underwent Doppler ultrasound examination of the skin in psoriatic plaques area and digital dermatoscopy to study the characteristics of vascular angiogenesis loci before treatment and at 1, 3 and 12 months of methotrexate therapy.

RESULTS: As a result of comparative correlation analysis of dermatoscopy and ultrasonographic Dopplerography indicators dynamics and psoriasis clinical index values during the treatment of patients with methotrexate, moderate and strong correlations were established between the values of the average diameter of the vascular glomerulus and the degree of increased blood flow in psoriatic plaque area after 1 month of methotrexate treatment and the values of PASI at 3, 6 and 12 months from the start of treatment (r=0.54–0.76, p=0.002–0.005), as well as between the mean vascular glomerulus diameter values and the degree of skin blood flow increase after 3 months and PASI and BSI indices after 6 and 12 months (r=0.36–0.74, p=0.001–0.036). Disappearance of Doppler signals in psoriatic plaques skin and decrease in vascular glomeruli average diameter after 1 month from the start of therapy in 1.76 [1.38; 2.30] and 1.30 [1.38; 2.30] times increase the probability of achieving clinical improvement after three months of methotrexate treatment. The correlation coefficient between the degree of NAPSI reduction after 6 and 12 months of treatment and the dynamics of Doppler blood flow in the nail bed and resistance index of arterial vessels in the nail bed after three months from the start of treatment varied from 0.53 to 0.73.

CONCLUSIONS: The dynamics of instrumental methods indicators for studying pathological angiogenesis correlates with the probability of achieving clinical improvement in psoriasis symptoms during systemic methotrexate therapy.

Keywords

psoriasis / angiogenesis / dermatoscopy / methotrexate / ultrasonography

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