Lung volume reduction surgery, originally used in the 1950s, has reemerged as a technique that may help some individuals with end-stage emphysema breathe more easily. The goal of the surgery is to enhance elastic recoil of the lung and to restore diaphragmatic function. The surgery is still in the experimental stages, but early outcome data are encouraging. The purpose of this study was to disc...

We report on a healthy 39-year-old man who developed spontaneous pneumomediastinum during a soccer game without a traumatic impact. Chest radiography and CT demonstrated the extensive pneumomediastinum and subcutaneous emphysema. Treatment of this rare condition is conservative and prognosis is excellent.

There are limited therapies for severe emphysema. Bronchoscopic treatments of emphysema were introduced to achieve the beneficial physiological changes seen in surgical lung volume reduction; however, at the present time these treatments are mostly aimed at improving quality of life and functional status in patients with emphysema. At this time, none of these minimally invasive approaches have ...

In this study, HA is superplastically embedded into Titanium substrate and the sample is subsequently deformed superplastically until 70% deformation degree. The former process is termed as superplastic embedment (SPE) while the later as superplastic deformation (SPD). After the SPE, HA is successfully embedded into the substrate, forming a layer with a thickness of about 249 nm. After the SPD ...