Circumferential Strain as a Marker of Vessel Reactivity in Patients with Intradialytic Hypotension.

: Intradialytic hypotension (IDH) complicates 4 to 39.9% of hemodialysis (HD) sessions. Vessels' reactivity disturbances may be responsible for this complication.

The reaction of arteries to haemodialysis - can a change in the cross-sectional area be an important parameter in the assessment of the vessels' condition?

Purpose: The objectives of our study were to evaluate the changes in the cross-section area of carotid and femoral arteries caused by fluid loss during haemodialysis (HD) and to determine the direction and amount of these changes.

Material And Methods: Seventy-four HD patients (28 women and 46 men) were studied. We performed ultrasound exams of the distal common carotid and proximal femoral arteries in each patient before and after a HD session.

Is contrast-enhanced ultrasonography (CEUS) useful in the assessment of obstructive uropathy-induced perfusion disorders?

The study aimed to evaluate the usefulness of contrast-enhanced ultrasonography in renal perfusion disorders caused by obstructive uropathy. We present a case of a patient with a horseshoe kidney, in which the urine outflow from the right part of the kidney was blocked due to the presence of a bladder tumour infiltrating the ureter. Perfusion disorders in both parts of the kidney, visible in computed tomography, were partially reflected in the ultrasound image.

Peripheral arterial response during haemodialysis - is two-dimensional speckle-tracking a useful arterial reactivity assessment tool?

2D speckle tracking is a method used in myocardial strain assessment. However, several studies have confirmed the suitability of its application in the assessment of arterial strain (a marker of arterial stiffness). The aims of our study were to evaluate whether 2D speckle tracking can assess the changes in carotid and femoral strain caused by fluid loss during haemodialysis, and to determine the direction and amount of these changes.

Arterio-bronchial fistula as a complication of post-traumatic subclavian artery pseudoaneurysm - radiological findings and outcome.

Post-traumatic arterio-bronchial fistula is a rare cause of life-threatening hemorrhage. We present a case of a ten-year-old patient with a post-traumatic subclavian artery pseudoaneurysm complicated by an arterio-bronchial fistula and occlusion of the subclavian artery. The patient was treated with a stent-graft.