High level of cardiac Troponin T (hs-cTnT) in geriatric population has been considered as an age-related phenomenon, which may question the interpretation of the increase of hs-cTnT in this population. The challenge is what is the primary cause of the increased hs-cTnT levels in elderly patients without AMI.
Objective
The aim of the current study was to determine the impact of aging on hs-cTnT levels in elderly patients without acute cardiac events but in the presence of comorbidities.
Methods
Sociodemographic and clinical data were collected from 6977 medical records of patients aged ≥65 years without acute coronary events but for whom hs-cTnT measurements were available. The patients were stratified based on age, troponin levels and the number of comorbidities.
Results
The results suggested that the likelihood of increased hs-cTnT was related to the presence of comorbidities independently of their number (p < 0.05). The adjusted odds ratio (AOR) for both advanced age and having comorbidity was statistically significant, however for the old group (74 ≥ age ≥ 84 years) the chance of having elevated troponin regarding age compared to the presence of comorbidity was 1.070
vs.
1.216, whereas for the old-old group (≥85 years) it was found to be 1.071
vs.
1.311. Besides statistical significance for age, from a clinical standpoint, the AOR of 1.070 may not be considered clinically relevant.
Conclusion
Increased hs-cTnT levels were associated with the presence of pre-existing comorbidities independently of age. Increased hs-cTnT levels in the elderly should always be considered as pathological, and a specific etiology should be searched.
Background
Elevated levels of cardiac troponin T as measured by a high-sensitivity test (hscTnT) are common in geriatric patients with a large spectrum of comorbidities but without acute coronary syndrome (ACS). However, the relative contribution of individual comorbidities has never been clearly addressed. This study aimed to determine the relationship between hscTnT elevation as a response variable and individual comorbidities, and to estimate the impact of individual comorbidities on hscTnT elevation in geriatric patients free of ACS.
Methods
A nonexperimental, retrospective, matched, longitudinal cohort study was designed to evaluate the files of 7062 geriatric patients (aged ≥ 65 years) without ACS. The hscTnT levels of the patients have already been measured in all evaluated medical records. The dataset was split into 2 groups (0 and 1) based on the individual comorbidity (0 and 1) and hscTnT levels (≤ 14 ng/L = 0 and > 14 ng/L = 1).
Results
Our results show that although age was positively and significantly correlated with hscTnT (r = 0.17,
P
< 0.0001), the likelihood of experiencing elevated hscTnT levels in older individuals after having excluded ACS was related to the presence of comorbidities independently of their number (
P
< 0.0001). The regression coefficients (β) associated with renal insufficiency (0.71), cardiomyopathy (0.63), chronic obstructive pulmonary disease (0.30), diabetes (0.25), and anemia (0.22) indicated that there exists a significant association between these comorbidities and the elevated hscTnT levels (
P
< 0.001). The receiver operating characteristic curve for predictive modeling was estimated at 71% (
P
< 0.0001).
Conclusions
Elevated hscTnT levels were mostly associated with renal insufficiency, cardiac myopathies, chronic obstructive pulmonary disease, diabetes, and anemia in geriatric patients without ACS. Developing guidelines to accurately evaluate hscTnT elevation in geriatric patients with comorbidities, without ACS, is clinically essential.
Introduction:
Early physician follow-up after hospital discharge for acute decompensated heart failure (ADHF) is recommended by the AHA to prevent early hospital readmission. This recommendation has not been specifically evaluated for heart failure with preserved ejection fraction (HFpEF).
Hypothesis:
Earlier follow-up should lead to decrease in readmissions for ADHF in the HFpEF population even when adjusting for confounding factors.
Methods:
Consecutive ADHF hospitalisation that occurred inclusively between 2015 and 2018 were reviewed. Main inclusion criterion was left ventricular ejection fraction ≥45%. The major exclusion criteria were: severe valvulopathy, hypertrophic cardiomyopathy, acute coronary syndrome 3 months before hospitalisation, chronic kidney failure (eGFR <30 ml/min), severe chronic respiratory disease and death before discharge. Follow-up delay after discharge was dichotomized (early vs late/no follow up) by using the median delay. Main outcome was hospital readmission in the year following discharge. Multivariate logistic regression was performed for main outcome according to follow-up delay and adjusted for age, sex, medication at discharge and major comorbid conditions.
Results:
A total of 163 heart failure readmission (37% of patients) occurred in 438 patients in the year following the first hospitalisation. Median readmission delay was of 62 days. Median dedicated follow-up delay was 30 days and was arranged in 68% of cases. After adjusting for confounding variables, early follow-up was significantly associated with fewer readmission (adjusted odds ratio 0.57, 95% CI; 0.34-0.97).
Conclusions:
Early dedicated follow-up after discharge for HFpEF was associated with fewer readmission over the year following discharge even when adjusting for major confounding variables.
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