Background: Evidence for indoor airborne transmission of SARS-CoV-2 is accumulating. Objectives: We assessed the risk illness due to particles from breathing, speaking, singing, coughing, and sneezing in environments. Methods: A assessment model, AirCoV2, exposure aerosol droplets was developed. Previously published data on expelled by an infected person were used as inputs. Scenarios encompass...

Precice information on the treatment of bronchial asthma in Persia up to 9th and 10th century is not available. However according to some old religious books like Yasna and Vendidad, the “Haoma” had been used in the treatment of perspiration disorders and its extract had been advised by Zoraster as sacred water. There are some interesting idea about treatment of thorax diseases, which consist: ...

BACKGROUND The role of relative humidity in the aerosol transmission of influenza was examined in a simulated examination room containing coughing and breathing manikins. METHODS Nebulized influenza was coughed into the examination room and Bioaerosol samplers collected size-fractionated aerosols (<1 µM, 1-4 µM, and >4 µM aerodynamic diameters) adjacent to the breathing manikin's mouth and al...

We searched the MEDLINE, CINAHL, and Cochrane Library databases for articles published between January 1995 and April 2011. The update of this clinical practice guideline is the result of reviewing a total of 54 clinical trials and systematic reviews on incentive spirometry. The following recommendations are made following the Grading of Recommendations Assessment, Development, and Evaluation (...

Pulmonary embolism occurs when blood clots leave the veins where they developed, travel through the right side of the heart, and lodge in the small or large branches of the blood vessels going to the lung (pulmonary arteries). This can cause symptoms such as chest pain, difficulty breathing, or coughing up blood. In severe cases, it may result in collapse and sudden death. Long airplane flights...

This study compared the effect of two forms of chest physiotherapy. In the "conventional" form of physiotherapy, postural drainage was combined with percussion and directed coughing. The other, relatively new form of physiotherapy, was the forced expiration technique, i.e. huffing combined with postural drainage, breathing exercises and, if necessary, coughing. Eight patients (six with cystic f...

INTRODUCTION Chest wall blunt trauma causes multiple rib fractures and will often be associated with significant pain and may compromise ventilator mechanics. Analgesia has great roll in rib fracture therapies, opioid are useful, but when used as sole agent may require such high dose that they produce respiratory depression, especially in elderly .the best analgesia for a severe chest wall inju...

IN 1902 Campiche, of Lausanne, observed that chest complications are likely to occur after "operations an effect of which is to cause pain on coughing . . . and to upset expectoration and the free functioning of the abdominal pressure". Lawen, in 1912, further remarked: "if we were in a position to produce prolonged anaesthesia, lasting for several days, it is likely that the incidence of bronc...