AI Article Synopsis
- Exercise stress testing (EST) is frequently used to assess chest pain, often aiming for 85% of the age-predicted maximum heart rate (APMHR), calculated with the formula 220 minus age.
- The reliability of this formula and the 85% target has been questioned, as not reaching this threshold (chronotropic insufficiency) could indicate a higher cardiovascular risk.
- Alternative metrics like percentage heart rate reserve (%HRR), maximum rate pressure product (MRPP), and maximum metabolic equivalent of tasks (METs) may provide better predictions for cardiovascular health than solely focusing on the 85% APMHR.
Article Abstract
Exercise stress testing (EST) is commonly used to evaluate chest pain, with some labs using 85% of age-predicted maximum heart rate (APMHR) as an endpoint for EST. The APMHR is often calculated using the formula 220-age. However, the accuracy of this formula and 85% APMHR as an endpoint may be questioned. Moreover, failing to reach 85% APMHR (known as chronotropic insufficiency) may also indicate poor cardiovascular prognosis, but measurements, such as percentage heart rate reserve (%HRR), maximum rate pressure product (MRPP), and the maximum metabolic equivalent of tasks (METs) reached during EST may provide better prediction of cardiovascular outcomes than not reaching 85% of APMHR. There is a need to incorporate comprehensive measurements to improve the diagnostic and prognostic capabilities of EST.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11432587 | PMC |
| http://dx.doi.org/10.3390/jcm13185562 | DOI Listing |
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