Microvascular disturbance after radial artery catheterizations in a patient with polycythemia vera

Arterial catheterization is an invasive technique commonly used for continuous monitoring of arterial blood pressure and for analysis of arterial blood gases. Arterial catheterization is a relatively safe procedure; however, vascular occlusion and ischaemia is a known complication of the procedure. We experienced a case of microvascular disease in the hand of a patient who underwent radial artery catheterization and was diagnosed with polycythemia vera during treatment.