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Abstract:

Aim: was to assess dynamics of angiographic parameters of coronary artery rehabilitation, spasm throughout, below chronic coronary occlusion (CCO), after recanalization and balloon angioplasty, with survey of 8-10 weeks, basing on dynamics of anatomical and morphological characteristics of the artery with a major idea to optimize conditions for stenting.

Materials and methods: research analyzes results of two-stage treatment of 26 patients with CCO, complicated by a spasm, by which result after a recanalization of occlusion, was a contrasted artery with diameter less than 1 mm.

In these cases angioplasty with balloons with a diameter up to 3 mm doesn’t yield desirable results and diameter of an artery below a place of occlusion averaged 1,5 mm, and the difference of diameters of proximal and distally department averages 1,78 mm that is an adverse factor for stenting as is followed by high level of restenosis and thrombosis.

Results: within 4-8 weeks (on average 68 days) all arteries remained passable with equal contours, without angiographic signs of dissection, which took place right after balloon angioplasty Diameter of an artery increased with 1,5 mm to 2,64 mm; a difference of diameters of proximal and distally departments of an artery at the level of CCO decreased from 1,78 mm to 0,45 mm that was a favorable condition for stenting.

Conclusion: within 4-8 weeks after recanalization under normal pressure and blood flow occurs a readaptation of artery, expressed in a significant increase in the diameter of the artery below the CCO, which contributes to the optimization of stenting.

 

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