Cardiopulmonary exercise testing predicts postoperative outcome in patients undergoing gastric bypass surgery

For several types of non-cardiac surgery, the cardiopulmonary exercise testing (CPET)-derived variables anaerobic threshold (AT), peak oxygen consumption ( V.O2 peak), and ventilatory equivalent for CO2 ( V.E/V.CO2) are predictive of increased postoperative risk: less physically fit patients having...

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Bibliographic Details
Published in:British journal of anaesthesia : BJA 2012-10, Vol.109 (4), p.566-571
Main Authors: Hennis, P.J., Meale, P.M., Hurst, R.A., O’Doherty, A.F., Otto, J., Kuper, M., Harper, N., Sufi, P.A., Heath, D., Montgomery, H.E., Grocott, M.P.W.
Format: Article
Language:English
Subjects:
Adult
aerobic exercise
Anaerobic Threshold - physiology
Anesthesia
Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy
Area Under Curve
bariatric surgery
Biological and medical sciences
Body Weight - physiology
exercise test
Exercise Test - methods
Female
Gastric Bypass
Humans
Length of Stay
Male
Medical sciences
Patient Readmission
Physical Fitness
postoperative complications
Postoperative Complications - epidemiology
Predictive Value of Tests
Prospective Studies
risk assessment
ROC Curve
Treatment Outcome
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Summary:For several types of non-cardiac surgery, the cardiopulmonary exercise testing (CPET)-derived variables anaerobic threshold (AT), peak oxygen consumption ( V.O2 peak), and ventilatory equivalent for CO2 ( V.E/V.CO2) are predictive of increased postoperative risk: less physically fit patients having a greater risk of adverse outcome. We investigated this relationship in patients undergoing gastric bypass surgery. All patients (3 days compared with LOS≤3 days [10.4 (1.4) vs 11.3 (1.8) ml kg−1 min−1, P=0.023]. ROC curve analysis identified AT as a significant predictor of LOS>3 days (AUC 0.640, P=0.030). The V.O2 peak and V.E/V.CO2 were not associated with postoperative outcome. AT, determined using CPET, predicts LOS after gastric bypass surgery.
ISSN:0007-0912
1471-6771
DOI:10.1093/bja/aes225