Pulmonary function in swimmers exposed to disinfection by-products: a narrative review.

Swimming produces many psychophysiological effects, including blood, hormonal, enzymatic, pulmonary, cardiovascular and energetic adaptations. However, asthma and allergies are becoming increasingly prevalent medical issues among elite endurance-trained swimmers, where exercise-induced asthma or bronchospasm is frequently reported. Heavy endurance swimming training, especially under adverse conditions, stresses the airway mucosa, leading to inflammatory changes, as observed in induced sputum in competitive swimmers.

Local recurrence risk in head and neck basal cell carcinoma.

Purpose: The aim of the study was to ascertain the risk factors of local recurrence in primary basal cell carcinoma of the head and neck Material and methods: A retrospective analysis of 545 patients with head and neck primary basal cell carcinoma treated in years 2008 - 2018 was done. The following data was recorded: age, sex, tumor site, histological subtype, greatest dimension, margin status, experience of operating surgeon and local recurrence Results: Most of the tumors were located nose (165; 30,2%) and auricle (119; 21,8%). The most common pathological subtype was nodular (119; 21,8%).

Primary surgical treatment versus salvage surgery: Results of free flap reconstruction performed in 100 patients with oropharyngeal cancer.

This research sought to analyze the functional results of free flap reconstruction in two groups of patients with head and neck cancer: first group started with radiochemotherapy followed by reconstructive surgery, second group underwent initiative surgery. MATERIALS AND METHODS: In a group of 100 patients, surgery was used as the primary form of treatment in 55 (55%) patients, and the remaining 45 patients (45%) had chemoradiotherapy introduced first. Statistical analysis was performed with Statistica v.

One-Step Laryngotracheal Reconstruction With Prefabricated Corticoperiosteal Flap.

Large airway reconstruction is difficult and requires a flap that will mirror the tissue variety. The main challenge is to keep the reconstruction stable and prevent collapse. In this report, we present a laryngotracheal reconstruction with a buccal mucosa-prefabricated medial femoral condyle free flap, after chondroma excision in a 1-step procedure.

On the impact of nanotube diameter on biomembrane indentation - Computer simulations study.

The influence of the single-walled carbon nanotubes on the phospholipid bilayer has been studied using steered molecular dynamics (SMD) simulations. The impact of different nanotubes on the phospholipid bilayer structure is discussed as well as the speed of indentation. Additionally, a series of simulations with pulling out of the nanotubes from the membrane were performed.