TY - JOUR
T1 - Cross-sectional study of high-sensitivity cardiac troponins T and I in a hospital and community outpatient setting
AU - Potter, Julia
AU - Simpson, Aaron
AU - Kerrigan, Jennifer
AU - Southcott, Emma
AU - Salib, Marie
AU - KOERBIN, Gus
AU - Hickman, Peter
PY - 2017
Y1 - 2017
N2 - Objectives Cardiac troponins are specific for the heart, but not for the acute coronary syndrome. We wanted to assess how common elevated cardiac troponin concentrations were, in a population with significant non-cardiac disease. Design Methods We measured both hs-cTnT and hs-cTnI on all samples submitted to the laboratory during one 24 h period, and assessed the magnitude of the cTn concentration with the location and severity of disease of the patient. Results Community patients and patients from the maternity ward had the lowest cTn concentrations with results above the 99th percentile being only 0–2% of the total. As expected, the highest proportion of results > 99th percentile came from Coronary Care and Intensive Care. However, substantial numbers of persons on Medical and Surgical wards, without a primary diagnosis of cardiac disease, also had cTn > 99th percentile. Particularly for cTnT, there was a highly significant odds ratio predicting mortality when results above and below the 99th percentile were compared. Conclusions Significant illnesses apart from the acute coronary syndrome are important causes of a rise in cTn to above the 99th percentile, and appear to reflect the total body burden of disease. Even when the high hs-cTn concentration is not due to the acute coronary syndrome, there is a significant association with all-cause mortality.
AB - Objectives Cardiac troponins are specific for the heart, but not for the acute coronary syndrome. We wanted to assess how common elevated cardiac troponin concentrations were, in a population with significant non-cardiac disease. Design Methods We measured both hs-cTnT and hs-cTnI on all samples submitted to the laboratory during one 24 h period, and assessed the magnitude of the cTn concentration with the location and severity of disease of the patient. Results Community patients and patients from the maternity ward had the lowest cTn concentrations with results above the 99th percentile being only 0–2% of the total. As expected, the highest proportion of results > 99th percentile came from Coronary Care and Intensive Care. However, substantial numbers of persons on Medical and Surgical wards, without a primary diagnosis of cardiac disease, also had cTn > 99th percentile. Particularly for cTnT, there was a highly significant odds ratio predicting mortality when results above and below the 99th percentile were compared. Conclusions Significant illnesses apart from the acute coronary syndrome are important causes of a rise in cTn to above the 99th percentile, and appear to reflect the total body burden of disease. Even when the high hs-cTn concentration is not due to the acute coronary syndrome, there is a significant association with all-cause mortality.
KW - 99th percentile
KW - Acute coronary syndrome
KW - Cardiac troponin
KW - Non-cardiac illness
UR - http://www.scopus.com/inward/record.url?scp=85006001601&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/crosssectional-study-highsensitivity-cardiac-troponins-t-i-hospital-community-outpatient-setting
U2 - 10.1016/j.clinbiochem.2016.10.011
DO - 10.1016/j.clinbiochem.2016.10.011
M3 - Article
SN - 0009-9120
VL - 50
SP - 105
EP - 109
JO - Clinical Biochemistry
JF - Clinical Biochemistry
IS - 3
ER -