Real-time selected ion flow tube mass spectrometry to assess short- and long-term variability in oral and nasal breath.

Breath-based non-invasive diagnostics have the potential to provide valuable information about a person's health status. However, they are not yet widely used in clinical practice due to multiple factors causing variability and the lack of standardized procedures. This study focuses on the comparison of oral and nasal breathing, and on the variability of volatile metabolites over the short and long term.

Recurrent cutaneous decompression illness after PFO device implantation: a case report.

It is well known that patency of the foramen ovale (PFO) is a risk factor for decompression illness (DCI) in scuba divers, even if they adhere to the currently accepted and used decompression tables (termed "an undeserved hit"). The correction of the PFO through percutaneous closure after DCI is an ongoing discussion. We describe a case of a diver who redeveloped a cutaneous DCI due to a recurrent PFO after initial treatment with an occluder device four years earlier.