Abnormal end-tidal PO(2) and PCO(2) at the anaerobic threshold correlate well with impaired exercise gas exchange in patients with left ventricular dysfunction

The aim of the present study was to compare the end-tidal O(2) pressure (PETO(2)) to end-tidal CO(2) pressure (PETCO(2)) in cardiac patients during rest and during 2 states of exercise: at anaerobic threshold (AT) and at peak. The purpose was to see which metabolic state, PETO(2) or PETCO(2), best c...

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Veröffentlicht in:	Circulation journal : official journal of the Japanese Circulation Society 2012, Vol.76 (1), p.79-87
Hauptverfasser:	Kano, Hiroto, Koike, Akira, Hoshimoto-Iwamoto, Masayo, Nagayama, Osamu, Sakurada, Koji, Suzuki, Takeya, Tsuneoka, Hidekazu, Sawada, Hitoshi, Aizawa, Tadanori, Wasserman, Karlman
Format:	Artikel
Sprache:	eng
Schlagworte:	Aged Anaerobic Threshold - physiology Carbon Dioxide - metabolism Exercise - physiology Exercise Test Exercise Tolerance - physiology Female Humans Male Middle Aged Oxygen - metabolism Oxygen Consumption - physiology Pulmonary Gas Exchange - physiology Retrospective Studies Severity of Illness Index Stroke Volume - physiology Tidal Volume - physiology Ventricular Dysfunction, Left - physiopathology
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Zusammenfassung:	The aim of the present study was to compare the end-tidal O(2) pressure (PETO(2)) to end-tidal CO(2) pressure (PETCO(2)) in cardiac patients during rest and during 2 states of exercise: at anaerobic threshold (AT) and at peak. The purpose was to see which metabolic state, PETO(2) or PETCO(2), best correlated with exercise limitation. Thirty-eight patients with left ventricular (LV) ejection fraction
ISSN:	1347-4820