We have developed a mask sampler for exhaled respiratory viruses. Among a group of 9 patients with cold symptoms who had virus-positive nasal mucus specimens, as analyzed by multiplexed polymerase chain reaction, virus-positive mask samples were obtained after coughing (20 times), talking (20 min), or breathing (20 min) from 6, 5, and 3 patients, respectively.

Studying the fluid dynamics of exhalations, from droplet formation to turbulent cloud transport, is vital for understanding respiratory disease transmission. Our research combines experiments and numerical modeling uncover interfacial phenomena involved in bioaerosol generation during forceful breathing actions like coughing or sneezing. By investigating these fluid-mechanical processes, we aim...

mouth breathing might not always result in hypoxia, but can contribute to it. the aim of the present study was to determine the effect of mouth breathing on hypoxia. based on a pilot study, 323 patients with mouth breathing were selected. assessment of mouth breathing was based on clinical examination and questionnaires filled out by patients and their companions. the patients were also examine...

One hundred twenty patients undergoing coronary artery surgery completed a randomized controlled study designed to investigate whether prophylactic chest physiotherapy affected the incidence of postoperative pulmonary complications. Group 1 patients received no preoperative or postoperative chest physiotherapy. Group 2 patients received preoperative education and instruction in breathing and co...

Purpose: to investigate specifics of using thoracic bandage after cardiac surgery via sternotomy and its impact on reducing pain during therapeutic exercises. In order study a postoperative the seventh day patients (n=252) were asked two questions about force thorax compression exerted by bandage. As soon as answered, degree tension was also assessed physical therapist. Thereafter, some (n=44; ...

BACKGROUND Open surgical procedures are associated with substantial postoperative pain; an alternative method providing adequate pain relief with minimal side effects is very much required. AIM The aim of this study was a comparative evaluation of the efficacy of continuous thoracic paravertebral block (PVB) and thoracic epidural analgesia (EA) for postoperative pain relief in patients underg...

Chronic obstructive pulmonary disease (COPD) can lead to respiratory failure, but current pharmacological treatments focus on symptom relief or slowing disease progression. Here, the effectiveness of an alternative therapy combining deep-breathing exercises and oxygen inhalation therapy was assessed in mild-to-moderate COPD patients. Forty-two male mild-to-moderate COPD patients were randomly d...

The virus diffusion in a ventilated room with the droplets produced by coughing and breathing are presented Lagrangian model. When human body is located middle of two locations AC, front behind body, three angles Air Conditioning (AC) gate applied 0°, 30°, 60° to show droplet particle these cases. Three types velocity profiles were selected, real coughing, sinusoidal cough, cough jet one profil...

BACKGROUND Two bronchoprovocation methods are widely used. Compared to the tidal breathing method, the dosimeter method delivers approximately half the dose and involves five deep inhalations. Both the lower dose and the bronchoprotective deep inhalations contribute to the lesser airway response of the dosimeter. OBJECTIVE To determine the relative role of dose and deep inspiration in the dif...

On theoretical grounds it is assumed that positive expiratory pressure mask physiotherapy (PEP) as a means of promoting mucus clearance is especially effective in the more distal airways. In a randomized cross-over trial including a control measurement the effect of PEP and of the forced expiration technique combined with postural drainage (FET/PD) on regional lung clearance was evaluated in se...