scholarly journals Arterial Velocity Pulse Index as a Novel Marker of Atherosclerosis Using Pulse Wave Analysis on High Sensitivity Troponin T in Hypertensive Patients

2017 ◽  
Vol 8 (2) ◽  
pp. 36-43 ◽  
Author(s):  
Takashi Hitsumoto
Keyword(s):  
Pulse Wave ◽  
Troponin T ◽  
High Sensitivity ◽  
Pulse Wave Analysis ◽  
Wave Analysis ◽  
Velocity Pulse ◽  
Hypertensive Patients ◽  
High Sensitivity Troponin ◽  
High Sensitivity Troponin T

Increased serum level of high sensitivity troponin T even prior to surgery can predict adverse events during carotid endarterectomy

Vascular ◽  
2021 ◽  
pp. 170853812098629
Author(s):  
Bálint Nagy ◽  
Elettra Engblom ◽  
Marijana Matas ◽  
Péter Maróti ◽  
Tamás Kőszegi ◽  
...  
Keyword(s):  
Plasma Concentration ◽  
Matrix Metalloproteinase ◽  
Carotid Endarterectomy ◽  
Troponin T ◽  
High Sensitivity ◽  
Matrix Metalloproteinase 9 ◽  
Tissue Inhibitor Of Metalloproteinase ◽  
High Sensitivity Troponin ◽  
High Sensitivity Troponin T ◽  
Metalloproteinase 9

Objectives Perioperative stress affects the outcome of carotid endarterectomy performed under regional anesthesia. Here we aimed to explore the temporal profile of the stress marker cortisol and its relationship to high-sensitivity troponin-T, matrix metalloproteinase-9, tissue inhibitor of metalloproteinase-1, and S100B as an indicator of blood–brain barrier alteration in the systemic circulation. Methods Prospective part of the study: a total of 31 patients with significant carotid stenosis scheduled for carotid endarterectomy in regional anesthesia were enrolled. Follow-up part of the study and retrospective analysis of the outcome: each patient was followed up to five years and morbidity as well as mortality data were collected from an electronic database. Blood samples from each patient were serially taken; prior to surgery (T1), at the time of reperfusion (T2), 24 h (T3) and 72 h later postoperatively (T4), then the plasma concentration of each biomarker was measured. Besides, the clinical and surgical factors and perioperative adverse events were recorded. Results More positive correlations were found between: the early change of S100B (T2–T1) and late change in plasma cortisol level (T4–T3) (r = 0.403; p < 0.05); the early change of cortisol (T2–T1) and the early postoperative change of plasma matrix metalloproteinase-9 level (T3–T2) (r = 0.432; p = 0.01); the plasma concentration of tissue inhibitor of metalloproteinase-1 at 24 postoperative hours and the late change in plasma high-sensitivity troponin-T level (T4–T3) (r = 0.705; p < 0.001). Five patients needed an intraoperative shunt in whom the high-sensitivity troponin-T was elevated even prior to surgery, but definitive stroke never occurred. Plasma matrix metalloproteinase-9 concentration at reperfusion independently predicted the five-year mortality with a cut-off value of 456 ng/ml (sensitivity: 86%, specificity: 84%, area 0.887, p = 0.002). Conclusions A higher intraoperative change in S100B level reflecting carotid endarterectomy induced acute silent brain ischemia was associated with more pronounced post-operative change of cortisol. An early elevation of cortisol was found to be associated with a delayed increase of matrix metalloproteinase-9. Importantly, an increased high-sensitivity troponin-T even prior to carotid endarterectomy may predict clamp intolerance, and elevated matrix metalloproteinase-9 at reperfusion suggests a poor outcome.

scholarly journals Age-adjusted high-sensitivity troponin T cut-off value for risk stratification of pulmonary embolism

2015 ◽  
Vol 45 (5) ◽  
pp. 1323-1331 ◽  
Author(s):  
Anja Kaeberich ◽  
Valerie Seeber ◽  
David Jiménez ◽  
Maciej Kostrubiec ◽  
Claudia Dellas ◽  
...  
Keyword(s):  
Pulmonary Embolism ◽  
Adverse Outcome ◽  
Troponin T ◽  
High Sensitivity ◽  
Severity Index ◽  
Characteristic Analysis ◽  
Prognostic Information ◽  
High Sensitivity Troponin ◽  
Advanced Therapy ◽  
High Sensitivity Troponin T

High-sensitivity troponin T (hsTnT) helps in identifying pulmonary embolism patients at low risk of an adverse outcome. In 682 normotensive pulmonary embolism patients we investigate whether an optimised hsTnT cut-off value and adjustment for age improve the identification of patients at elevated risk.Overall, 25 (3.7%) patients had an adverse 30-day outcome. The established hsTnT cut-off value of 14 pg·mL−1 retained its high prognostic value (OR (95% CI) 16.64 (2.24–123.74); p=0.006) compared with the cut-off value of 33 pg·mL−1 calculated by receiver operating characteristic analysis (7.14 (2.64–19.26); p<0.001). In elderly (aged ≥75 years) patients, an age-optimised hsTnT cut-off value of 45 pg·mL−1 but not the established cut-off value of 14 pg·mL−1 predicted an adverse outcome. An age-adjusted hsTnT cut-off value (≥14 pg·mL−1 for patients aged <75 years and ≥45 pg·mL−1 for patients aged ≥75 years) provided additive and independent prognostic information on top of the simplified pulmonary embolism severity index (sPESI) and echocardiography (OR 4.56 (1.30–16.01); p=0.018, C-index=0.77). A three-step approach based on the sPESI, hsTnT and echocardiography identified 16.6% of all patients as being at higher risk (12.4% adverse outcome).Risk assessment of normotensive pulmonary embolism patients was improved by the introduction of an age-adjusted hsTnT cut-off value. A three-step approach helped identify patients at higher risk of an adverse outcome who might benefit from advanced therapy.

Abstract 12777: High Sensitivity Troponin T is Associated With Increased Heart Failure Risk in Metabolic Syndrome in the Atherosclerosis Risk in Communities (ARIC) Study

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Yashashwi Pokharel ◽  
Wensheng Sun ◽  
Dennis Villarael ◽  
Elizabeth Selvin ◽  
Salim Virani ◽  
...  
Keyword(s):  
Heart Failure ◽  
Metabolic Syndrome ◽  
Myocardial Injury ◽  
Troponin T ◽  
Cox Model ◽  
High Sensitivity ◽  
Cvd Risk ◽  
Chi Square ◽  
High Sensitivity Troponin ◽  
High Sensitivity Troponin T

Background: Metabolic syndrome (MS) is associated with higher CVD risk. High sensitivity troponin T (hsTnT) is a marker of myocardial injury and an emerging marker for heart failure (HF) risk prediction. We examined whether hsTnT is associated with increased HF risk in people with similar number of MS components present at baseline in 10316 ARIC participants without prevalent HF. Methods: We used Wald Chi-square test to assess the interaction between MS and hsTnT and Cox model for the association of incident HF hospitalization by hsTnT categories across groups created by the number of MS components after adjusting for risk factors and NT-proBNP (Table). Results: The mean age of the study population was 63 (SD, 6) years (56% women). Mean hsTnT levels were higher with increasing MS components (Table). There were 1353 HF hospitalizations over a median of 14 years. The interaction of MS with hsTnT for HF was borderline significant (p-interaction 0.059). Compared to individuals without MS and hsTnT<5 ng/L the HRs (95%CIs) were 1.7 (1.4-2.1) in those without MS and hsTnT≥5 ng/L; 1.7 (1.3-2.1) in MS and hsTnT<5 ng/L; and 3.6 (3.0-4.4) in MS and hsTnT≥5 ng/L. In groups with 1-5 MS components present, increasing hsTnT was significantly associated with higher hazards for HF in each group with the highest HR in those with all 5 MS components (Table). Conclusion: Presence of higher MS risk components was associated with increasing subclinical myocardial injury as assessed by higher hsTnT. The hazards for HF were numerically similar in individuals without MS but detectable hsTnT (>5 ng/L) as to those with MS but undetectable hsTnT. In people with similar number of MS components higher hsTnT levels were associated with increased HF hazards suggesting that in MS hsTnT could be a useful marker for identifying those at higher risk for incident HF.

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