Some air for closure of the patent foramen ovale.

The patient is 56 years old. He likes sports, in particular deep-sea diving. After 2 decompression incidents, he was worked up by a cardiologist and a patent foramen ovale (PFO) was found. Incidentally, he mentioned that he has been increasingly short of breath during physical exercise. The PFO was closed (Fig. 1) in an outpatient procedure, and the next day, already, he enjoyed an improved exercise capacity when jogging. This effect proved to be sustained and diving has remained uneventful since.