Cardiac magnetic resonance imaging during pulmonary hyperinflation in apnea divers
Authors
- T. Batinic
- W. Utz
- T. Breskovic
- J. Jordan
- J. Schulz-Menger
- S. Jankovic
- Z. Dujic
- J. Tank
Journal
- Medicine and Science in Sports and Exercise
Citation
- Med Sci Sports Exerc 43 (11): 2095-2101
Abstract
Apnea divers hyperinflate the lung by taking a deep breath followed by glossopharyngeal insufflation. The maneuver can lead to symptomatic arterial hypotension. We tested the hypotheses that glossopharyngeal insufflation interferes with cardiac function further reducing cardiac output (CO) using cardiac magnetic resonance imaging (MRI) to fully sample both cardiac chambers.