Intratympanic injection of dexamethasone for management of labyrinthitis associated with COVID-19 disease resistant cases.

Objective: To evaluate the efficacy of mixed oral prednisolone and intratympanic dexamethasone (ITID) injection in labyrinthitis, due to COVID 19.

Methods: Seventy-five post-COVID-19 labyrinthitis patients were included. Those patients were treated with systemic oral prednisolone for two weeks and ITID.

Recurrent respiratory infections and vitamin A levels: a link? It is cross-sectional.

Respiratory tract infections are common illnesses in children, causing significant morbidity and negatively affecting their health. Vitamin A protects against infections and maintains epithelial integrity. The goal of this study was to determine the correlation between vitamin A deficiency and recurrent respiratory tract infections (RRTIs).

Breast Tumor Diagnosis Using Finite-Element Modeling Based on Clinical in vivo Elastographic Data.

Objectives: This study exploited finite-element modeling (FEM) to simulate breast tissue multicompression during ultrasound elastography to classify breast tumors based on their nonlinear biomechanical properties.

Methods: Numeric simulations were first calculated by using 3-dimensional (3D) virtual models with an assumed tumor's geometric dimensions but with actual material properties to test and validate the FEM. Further numeric simulations were used to construct 3D models based on in vivo experimental data to verify our models.