Clinical characteristics of acute rhinosinusitis in COVID-19 a post hoc analysis of a longitudinal study.

Background: Acute rhinosinusitis (ARS) is a common and well-defined disorder, primarily of viral aetiology, with rhinovirus and coronavirus accounting for more than 50% of viral ARS. The fight with COVID-19 pandemic resulted in an increased availability viral testing, which in turn allowed testing for presence of SARS-Cov-2 in all patients presenting common cold (or ARS) symptoms. The aim of this study was to assess the clinical characteristics of acute rhinosinusitis in patients diagnosed with COVID-19.

Short lingual frenulum and head-forward posture in children with the risk of obstructive sleep apnea.

Background: Recent studies have shown that a short lingual frenulum is a potential risk factor for obstructive sleep apnea syndrome (OSAS) in children. A short frenulum leads to abnormal orofacial development and may consequently contribute to sleep-disordered breathing by narrowing the upper airways and increasing the risk of upper-airway collapsibility. The aim of this study was to assess the impact of a short lingual frenulum on the risk of OSAS in children.

Hypercalcemia in the nephrology department patients - incidence, etiology and impact on renal function.

Unlabelled: Hypercalcemia (HCM) is predominantly caused by primary hyperparathyroidism (PHPT) or malignancy. It's incidence varies from 0.17% to 4.