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RESEARCH PRODUCT

Identification of acute myocardial infarction in elderly patients using optimized highly sensitive troponin I thresholds

Thomas MünzelKarl J. LacknerPhilipp S. WildStergios TzikasTanja ZellerTill KellerChristoph BickelFachrie SarMarco TubaroBeatrice Von JeinsenStephan BaldusTommaso GoriChristian W. HammAndreas M. ZeiherAlexander F. SchmidtChristoph LiebetrauLars PalapiesBlankenberg Stefan

subject

AdultMalemedicine.medical_specialtyCardiac troponinHealth Toxicology and Mutagenesishealth care facilities manpower and servicesClinical BiochemistryMyocardial InfarctionHyperlipidemias030204 cardiovascular system & hematologyBiochemistrySensitivity and Specificity03 medical and health sciences0302 clinical medicineRisk FactorsInternal medicineTroponin ImedicineHumansMyocardial infarctionProspective Studiescardiovascular diseaseshealth care economics and organizationsAgedAged 80 and overbiologybusiness.industrySmokingTroponin IMiddle Agedmedicine.diseaseTroponinhumanitiesHighly sensitive030220 oncology & carcinogenesisHypertensionCardiologybiology.proteinFemalebusinessBiomarkers

description

Purpose: Established diagnostic thresholds for high-sensitivity cardiac troponins (hs-cTn) might not apply for elderly patients as they are elevated irrespective of the presence of an acute myocardial infarction (AMI). Aim of the present study was to investigate hs-cTnI in elderly patients with suspected AMI and to calculate optimized diagnostic cutoffs. Material and methods: Data from a prospective multi-centre study and from a second independent prospective single-centre cohort study were analysed. A number of 2903 patients were eligible for further analysis. Patients > 70 years were classified as elderly. hs-cTnI was measured upon admission. Results: Around 34.7% of 2903 patients were classified as elderly. Around 22.5% of elderly patients were finally diagnosed with AMI. Elderly patients had higher hs-cTnI levels at admission irrespective of the final diagnosis (p Conclusions: hs-cTnI levels have a lower specificity for detecting AMI in elderly patients. This lower specificity can be improved by using hs-cTnI thresholds optimized for elderly patients.

https://dx.doi.org/10.6084/m9.figshare.9879281