Impact of respiratory muscle training on clinical and functional parameters in COVID-19 recovered patients.

Introduction: early respiratory rehabilitation is required for patients with coronavirus virus disease 2019 (COVID-19) sequelae to reduce the risk of serious disabilities after hospital discharge.

Methods: it was a comparative prospective study including patients with persistent symptoms one month after discharge. The patients were hospitalized at the pneumology department D of Abderahman Mami hospital for COVID-19 pneumonia.

[Obstructive hypopnea sleep apnea syndrome in the elderly].

Introduction: obstructive sleep apnea hypopnea syndrome (OSAHS) is a common but often under diagnosed disease among elderly persons. The aim of our study was to determine the clinical and polygraphic characteristics of OSAHS in elderly by comparing them to younger patients.

Methods: a retrospective study was performed at Pavillon D pneumology at Abderrahmen Mami Hospital in Ariana including 222 patients with OSAHS, divided into two groups: group 1 including 72 patients aged 18 to 45 years and Group 2 including 150 patients aged 65 and over.

Improvement of displacement estimation of breast tissue in ultrasound elastography using the monogenic signal.

Background: In breast ultrasound elastography, tissues displacements estimation is obtained through a technique that follows the evolution of tissues under stress. However, during the acquisition of B-mode images, tissue displacements are often contaminated with multiplicative noise caused by changes in the speckle pattern in the tissue. Thus, the application of monogenic signal technique on the B-mode image in order to estimate displacement tissue, result in a presence of amplified noise in the deformation tissue image, which severely obscures the useful information.