Publications by authors named "Valerii Ivanov"

Purpose: Rectal cancer patients who present with peritumoral abscesses and fistulas at the time of diagnosis may be denied chemoradiotherapy (CRT) as the safety is unknown. The aim of this study was to investigate the safety of preoperative CRT in this patient group.

Methods: We performed a retrospective nested case-control study to compare outcomes between patients with locally advanced rectal cancer with peritumoral abscesses and fistulas (study group) and patients with T4 locally advanced rectal cancer with no evidence of abscesses and fistulas (control group).

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Objective: Introduction: The previous studies of coronary atherosclerosis association with aortic valve calcification (AVC) and/or mitral annulus calcification (MAC) had contradictory results. The aim: To assess gender differences in clinical factors associated with coronary artery atherosclerosis severity.

Patients And Methods: Materials and methods: 362 patients (mean age 63.

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