Key result
Preoperative cardiopulmonary exercise testing revealing an anaerobic threshold <11 ml/min/kg was associated with an 18% mortality rate, compared to 0.8% in those with a threshold >11 ml/min/kg.
Authors
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AT <11 ml/min/kg flags high-risk elderly surgical patients; hypothesis-generating and requires prospective validation before guiding care.
Cohort (n=187)
Absolute Event Rate: 18% vs 0.8%
Older et al. (1994) conducted a cohort in Elderly surgical patients (n=187). Anaerobic threshold (AT) < 11 ml/min/kg vs. Anaerobic threshold (AT) > 11 ml/min/kg was evaluated on Mortality. Preoperative cardiopulmonary exercise testing revealing an anaerobic threshold <11 ml/min/kg was associated with an 18% mortality rate, compared to 0.8% in those with a threshold >11 ml/min/kg.
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