TRUE ANEURYSMS OF PERMANENT VASCULAR ACCESS. EPIDEMIOLOGY AND CLINICAL CHARACTERISTICS OF PATIENTS

Abstract

Objective. To assess the frequency of development of true aneurysms of native permanent vascular access and to identify the causes leading to their occurrence.

Material and methods. A survey of 219 patients undergoing programmed hemodialysis was conducted. Group I (195 people) consisted of patients without permanent vascular access aneurysms, group II (23 people) patients with a diameter of permanent vascular access more than 20 mm.

Results. The presence of catheterizations of homolateral central veins in the anamnesis in patients was statistically insignificant (p=0,152). There were also no statistical differences depending on gender and age. In 91.3% of group II patients, the volumetric blood flow exceeded 1 l/min, while in 26.1% this indicator exceeded 2 l/min. Abnormal bypass-cardiac fraction was registered in 82.6% of patients.

Conclusions. True aneurysms of native permanent vascular access were detected in 11.8% of patients. A statistically significant relationship between the occurrence of aneurysms of permanent vascular access and the duration of functioning of this access was revealed. The presence in most patients of a high flow along the fistula and an abnormal bypass-cardiac fraction (82,6%) indicates the need for dynamic monitoring to prevent the development of congestive heart failure.