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Maayah M, Grubman S, Allen S, Ye Z, Park DY, Vemmou E, Gokhan I, Sun WW, Possick S, Kwan JM, Gandhi PU, Hu JR. Clinical Interpretation of Serum Troponin in the Era of High-Sensitivity Testing. Diagnostics (Basel) 2024; 14:503. [PMID: 38472975 DOI: 10.3390/diagnostics14050503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/03/2024] [Accepted: 02/05/2024] [Indexed: 03/14/2024] Open
Abstract
Cardiac troponin (Tn) plays a central role in the evaluation of patients with angina presenting with acute coronary syndrome. The advent of high-sensitivity assays has improved the analytic sensitivity and precision of serum Tn measurement, but this advancement has come at the cost of poorer specificity. The role of clinical judgment is of heightened importance because, more so than ever, the interpretation of serum Tn elevation hinges on the careful integration of findings from electrocardiographic, echocardiographic, physical exam, interview, and other imaging and laboratory data to formulate a weighted differential diagnosis. A thorough understanding of the epidemiology, mechanisms, and prognostic implications of Tn elevations in each cardiac and non-cardiac etiology allows the clinician to better distinguish between presentations of myocardial ischemia and myocardial injury-an important discernment to make, as the treatment of acute coronary syndrome is vastly different from the workup and management of myocardial injury and should be directed at the underlying cause.
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Affiliation(s)
- Marah Maayah
- Yale School of Medicine, Yale University, New Haven, CT 06520, USA
| | - Scott Grubman
- Yale School of Medicine, Yale University, New Haven, CT 06520, USA
| | - Stephanie Allen
- Department of Internal Medicine, Yale School of Medicine, Yale University, New Haven, CT 06520, USA
| | - Zachary Ye
- Department of Internal Medicine, Temple University Medical Center, Philadelphia, PA 19140, USA
| | - Dae Yong Park
- Department of Internal Medicine, Cook County Hospital, Chicago, IL 60612, USA
| | - Evangelia Vemmou
- Department of Internal Medicine, Yale School of Medicine, Yale University, New Haven, CT 06520, USA
| | - Ilhan Gokhan
- Yale School of Medicine, Yale University, New Haven, CT 06520, USA
| | - Wendy W Sun
- Department of Emergency Medicine, Yale School of Medicine, Yale University, New Haven, CT 06520, USA
| | - Stephen Possick
- Section of Cardiovascular Medicine, Yale School of Medicine, Yale University, New Haven, CT 06520, USA
| | - Jennifer M Kwan
- Section of Cardiovascular Medicine, Yale School of Medicine, Yale University, New Haven, CT 06520, USA
| | - Parul U Gandhi
- Section of Cardiovascular Medicine, Yale School of Medicine, Yale University, New Haven, CT 06520, USA
- Department of Cardiology, Veterans Affairs Connecticut Health Care System, West Haven, CT 06516, USA
| | - Jiun-Ruey Hu
- Section of Cardiovascular Medicine, Yale School of Medicine, Yale University, New Haven, CT 06520, USA
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M’Pembele R, Roth S, Jenkins F, Hettlich V, Nucaro A, Stroda A, Tenge T, Polzin A, Ramadani B, Lurati Buse G, Aubin H, Lichtenberg A, Huhn R, Boeken U. Association between early postoperative hypoalbuminaemia and outcome after orthotopic heart transplantation. INTERDISCIPLINARY CARDIOVASCULAR AND THORACIC SURGERY 2024; 38:ivae012. [PMID: 38230700 PMCID: PMC10827358 DOI: 10.1093/icvts/ivae012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/20/2023] [Accepted: 01/13/2024] [Indexed: 01/18/2024]
Abstract
OBJECTIVES In patients undergoing heart transplantation (HTX), preoperative liver impairment and consecutive hypoalbuminaemia are associated with increased mortality. The role of early postoperative hypoalbuminaemia after HTX is unclear. This study investigated the association between early postoperative hypoalbuminaemia and 1-year mortality as well as 'days alive and out of hospital' (DAOH) after HTX. METHODS This retrospective cohort study included patients who underwent HTX at the University Hospital Duesseldorf, Germany, between 2010 and 2022. The main exposure was serum albumin concentration at intensive care unit (ICU) arrival. The primary endpoints were mortality and DAOH within 1 year after surgery. Receiver operating characteristic (ROC) curve analysis was performed and logistic and quantile regression models with adjustment for 13 a priori defined clinical risk factors were conducted. RESULTS Out of 241 patients screened, 229 were included in the analysis (mean age 55 ± 11 years, 73% male). ROC analysis showed moderate discrimination for 1-year mortality by postoperative serum albumin after HTX [AUC = 0.74; 95% confidence interval (CI): 0.66-0.83]. The cutoff for serum albumin at ICU arrival was 3.0 g/dl. According to multivariate logistic and quantile regression, there were independent associations between hypoalbuminaemia and mortality/DAOH [odds ratio of 4.76 (95% CI: 1.94-11.67) and regression coefficient of -46.97 (95% CI: -83.81 to -10.13)]. CONCLUSIONS Postoperative hypoalbuminaemia <3.0 g/dl is associated with 1-year mortality and reduced DAOH after HTX and therefore might be used for early postoperative risk re-assessment in clinical practice.
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Affiliation(s)
- René M’Pembele
- Department of Anesthesiology, Medical Faculty and University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Sebastian Roth
- Department of Anesthesiology, Medical Faculty and University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Freya Jenkins
- Department of Cardiac Surgery, Medical Faculty and University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Vincent Hettlich
- Department of Cardiac Surgery, Medical Faculty and University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Anthony Nucaro
- Department of Anesthesiology, Medical Faculty and University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Alexandra Stroda
- Department of Anesthesiology, Medical Faculty and University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Theresa Tenge
- Department of Anesthesiology, Medical Faculty and University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Amin Polzin
- Department of Cardiology, Pulmonology and Vascular Medicine, Medical Faculty and University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Bedri Ramadani
- Department of Cardiac Surgery, Medical Faculty and University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Giovanna Lurati Buse
- Department of Anesthesiology, Medical Faculty and University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Hug Aubin
- Department of Cardiac Surgery, Medical Faculty and University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Artur Lichtenberg
- Department of Cardiac Surgery, Medical Faculty and University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
| | - Ragnar Huhn
- Department of Anesthesiology, Kerckhoff Heart and Lung Center, Bad Nauheim, Germany
- Department of Anesthesiology, Amsterdam University Medical Center (AUMC), Location AMC, Amsterdam, Netherlands
| | - Udo Boeken
- Department of Cardiology, Pulmonology and Vascular Medicine, Medical Faculty and University Hospital Duesseldorf, Heinrich-Heine-University, Duesseldorf, Germany
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