Left lateral decubitus computed tomography before catheter ablation in patients with atrial fibrillation.

Aim    The study aimed to determine the efficacy of cardiac computed tomography angiography (CCTA) for diagnosing left atrial appendage (LAA) thrombus before catheter ablation with the patient in the left lateral decubitus position and, also, to evaluate the risk factors for thrombus formation.Material and methods    This retrospective, cohort study included 101 patients with atrial fibrillation. All patients underwent transthoracic echocardiography (TTE) and left lateral decubitus CCTA.

Lymphosarcoma Incidence in Kazakhstan: A Retrospective Survey (2010-2019).

Objective: The aim is to study the trends of lymphosarcoma incidence in the regional context in Kazakhstan.

Methods: The retrospective study was done using descriptive method of oncoepidemiology. The extensive, crude and age-specific incidence rates are determined according to the generally accepted methodology used in statistics.