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- W2004348723 abstract "Oxygen saturation (SaO2) levels are typically not monitored during graded exercise testing (GXT) in cardiac patients but are in pulmonary patients. Given there can be a common etiology for the two diseases - smoking, it is not unreasonable to suspect that cardiac patients may also present with pulmonary disease. Given the detrimental effects of desaturation, it may be wise to monitor SaO2 levels in cardiac patients undergoing GXT. PURPOSE: To determine the occurrence and the extent of oxygen desaturation in cardiac patients undergoing a GXT. METHODS: Thirty-nine patients with diagnosed cardiac disease participated in this investigation. All performed a GXT on the treadmill and SaO2 was monitored via finger pulse oximetry, at rest, and then again at peak maximal exercise. RESULTS: Thirty-nine cardiac patients ((62.2 ± 14.3 y), 31 males (M) and 8 females (F)) completed a GXT between Aug and Oct 2001. Five patients were previously diagnosed with pulmonary disease. Six patients (15.4%, 5 M and 1 F) desaturated 4% or greater while 3 patients (7.8%, 3 M) had SaO2 levels of 90% or below. None of the 5 cardiac patients previously diagnosed with pulmonary disease were among these 9 patients. Maximal estimated MET levels were not significantly different between those who desaturated according to above criteria (desaturators), and those who did not (non-desaturators) (7.8 ± 2.6 vs. 7.7 ± 3.3 METS). There were a greater percentage of current/past smokers among the desaturators as compared to the non-desaturators (83% vs. 70%), and the desaturators also had a longer history of smoking than the non-desaturators (37.5 vs. 25.6 y). CONCLUSIONS: Significant oxygen desaturation during a GXT occured in 15% of cardiac patients without previously diagnosed pulmonary disease. Routine monitoring of SaO2 during GXT may be a useful screening tool to identify cardiac patients who may benefit from further assessment in order to diagnose underlying pulmonary disease." @default.
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- W2004348723 date "2002-05-01" @default.
- W2004348723 modified "2023-09-26" @default.
- W2004348723 title "OXYGEN DESATURATION DURING MAXIMAL GRADED EXERCISE TESTS IN CARDIAC PATIENTS" @default.
- W2004348723 doi "https://doi.org/10.1097/00005768-200205001-00066" @default.
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