1
|
Gosling AF, Wright MC, Cherry A, Milano CA, Patel CB, Schroder JN, DeVore A, McCartney S, Kerr D, Bryner B, Podgoreanu M, Nicoara A. The Role of Recipient Thyroid Hormone Supplementation in Primary Graft Dysfunction After Heart Transplantation: A Propensity-Adjusted Analysis. J Cardiothorac Vasc Anesth 2023; 37:2236-2243. [PMID: 37586950 DOI: 10.1053/j.jvca.2023.07.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/14/2023] [Accepted: 07/19/2023] [Indexed: 08/18/2023]
Abstract
OBJECTIVES To investigate whether recipient administration of thyroid hormone (liothyronine [T3]) is associated with reduced rates of primary graft dysfunction (PGD) after orthotopic heart transplantation. DESIGN Retrospective cohort study. SETTING Single-center, university hospital. PARTICIPANTS Adult patients undergoing orthotopic heart transplantation. INTERVENTIONS A total of 609 adult heart transplant recipients were divided into 2 cohorts: patients who did not receive T3 (no T3 group, from 2009 to 2014), and patients who received T3 (T3 group, from 2015 to 2019). Propensity-adjusted logistic regression was performed to assess the association between T3 supplementation and PGD. MEASUREMENTS AND MAIN RESULTS After applying exclusion criteria and propensity-score analysis, the final cohort included 461 patients. The incidence of PGD was not significantly different between the groups (33.9% no T3 group v 40.8% T3 group; p = 0.32). Mortality at 30 days (3% no T3 group v 2% T3 group; p = 0.53) and 1 year (10% no T3 group v 12% T3 group; p = 0.26) were also not significantly different. When assessing the severity of PGD, there were no differences in the groups' rates of moderate PGD (not requiring mechanical circulatory support other than an intra-aortic balloon pump) or severe PGD (requiring mechanical circulatory support other than an intra-aortic balloon pump). However, segmented time regression analysis revealed that patients in the T3 group were less likely to develop severe PGD. CONCLUSIONS These findings indicated that recipient single-dose thyroid hormone administration may not protect against the development of PGD, but may attenuate the severity of PGD.
Collapse
Affiliation(s)
- Andre F Gosling
- Department of Anesthesiology, Duke University School of Medicine, Durham, NC.
| | - Mary C Wright
- Department of Anesthesiology, Duke University School of Medicine, Durham, NC
| | - Anne Cherry
- Department of Anesthesiology, Duke University School of Medicine, Durham, NC
| | - Carmelo A Milano
- Department of Surgery, Duke University School of Medicine, Durham, NC
| | - Chetan B Patel
- Department of Medicine, Duke University School of Medicine, Durham, NC
| | - Jacob N Schroder
- Department of Surgery, Duke University School of Medicine, Durham, NC
| | - Adam DeVore
- Department of Medicine, Duke University School of Medicine, Durham, NC
| | - Sharon McCartney
- Department of Anesthesiology, Duke University School of Medicine, Durham, NC
| | - Daryl Kerr
- Department of Anesthesiology, Duke University School of Medicine, Durham, NC
| | - Benjamin Bryner
- Department of Surgery, Duke University School of Medicine, Durham, NC
| | - Mihai Podgoreanu
- Department of Anesthesiology, Duke University School of Medicine, Durham, NC
| | - Alina Nicoara
- Department of Anesthesiology, Duke University School of Medicine, Durham, NC
| |
Collapse
|
2
|
Abstract
Acute critically ill patients experience a rapid decline in plasma free thyroid hormone levels (free triiodothyronine (FT3) and free levothyroxine (FT4)), with a marked elevation of reverse T3, recognized as the euthyroid sick syndrome (ESS) or low-T3 syndrome. The ESS is also often associated with depressed myocardial function, sometimes referred to as the 'stunned myocardium'. Its clinical effects may vary from minimal hemodynamic impairment to cardiogenic shock. Medical management may range from aspirin alone to placement of a left ventricular assist device. With adequate supportive therapy, recovery usually occurs within days or weeks. The effect of T3/T4 therapy has been studied in three conditions in which the ESS and myocardial functional depression have been documented - i) transient regional myocardial ischemia and reperfusion, ii) transient global myocardial ischemia in patients undergoing cardiac surgery on cardiopulmonary bypass, and iii) transient inadequate global myocardial perfusion in brain-dead potential organ donors. Under all three conditions, myocardial ischemia leads to rapid loss of high-energy phosphates, accumulation of myocardial tissue lactate, and probably loss of homeostasis of cytosolic calcium, which may further increase cell injury. There is an inability to generate ATP through the Krebs cycle, which reduces the high-energy phosphate pool essential for all cell ATPases. Under all three conditions, following administration of T3/T4, the myocardial dysfunction was rapidly reversed. We, therefore, cautiously advocate the use of thyroid hormonal therapy to any patient with the ESS and/or a stunned myocardium.
Collapse
Affiliation(s)
- Dimitri Novitzky
- Formerly Professor of Cardiothoracic SurgeryUniversity of South Florida, Tampa, Florida, USAThomas E. Starzl Transplantation InstituteUniversity of Pittsburgh Medical Center, Starzl Biomedical Science Tower, W1543, 200 Lothrop Street, Pittsburgh, Pennsylvania 15261, USA
| | - David K C Cooper
- Formerly Professor of Cardiothoracic SurgeryUniversity of South Florida, Tampa, Florida, USAThomas E. Starzl Transplantation InstituteUniversity of Pittsburgh Medical Center, Starzl Biomedical Science Tower, W1543, 200 Lothrop Street, Pittsburgh, Pennsylvania 15261, USA
| |
Collapse
|
3
|
Pingitore A, Chen Y, Gerdes AM, Iervasi G. Acute myocardial infarction and thyroid function: new pathophysiological and therapeutic perspectives. Ann Med 2012; 44:745-57. [PMID: 21568669 DOI: 10.3109/07853890.2011.573501] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
In the post-reperfusion era, molecular and genetic mechanisms of cardioprotection and regeneration represent new therapeutic challenges to limit infarct size and minimize post-ischemic remodeling after acute myocardial infarction (AMI). Activation of cell survival mechanisms can be promoted by the administration of external drugs, stimulation of internal mechanisms, and genetic manipulation to delete or replace pathological genes or enhance gene expression. Among internal cardiovascular regulatory mechanisms, thyroid hormones (THs) may play a fundamental role. TH has a critical role in cardiovascular development and homeostasis in both physiological and pathological conditions. In experimental AMI, TH has been shown to affect cardiac contractility, left ventricular (LV) function, and remodeling. Several experimental studies have clearly shown that THs participate in the regulation of molecular mechanisms of angiogenesis, cardioprotection, cardiac metabolism, and ultimately myocyte regeneration, changes that can reverse left ventricular remodeling by favorably improving myocyte shape and geometry of LV cavity, thus improving systolic and diastolic performance. This review is focused on the role of thyroid on AMI evolution and on the potential novel option of thyroid-related treatment of AMI.
Collapse
Affiliation(s)
- Alessandro Pingitore
- Clinical Physiology Institute, CNR/Fondazione G. Monasterio CNR-Regione Toscana, Pisa e Massa, Italy
| | | | | | | |
Collapse
|
4
|
Cini G, Carpi A, Mechanick J, Cini L, Camici M, Galetta F, Giardino R, Russo M, Iervasi G. Thyroid hormones and the cardiovascular system: Pathophysiology and interventions. Biomed Pharmacother 2009; 63:742-53. [DOI: 10.1016/j.biopha.2009.08.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2009] [Accepted: 08/24/2009] [Indexed: 10/20/2022] Open
|
5
|
Abstract
This article briefly summarizes thyroid function alterations generally seen in the euthyroid sick syndrome, provides an overview of specific thyroidal adaptations during several clinical conditions and secondary to specific pharmacologic agents, and discusses the current controversy in thyroid hormone treatment of nonthyroidal illness.
Collapse
Affiliation(s)
- Suzanne Myers Adler
- Department of Medicine, Washington Hospital Center, and Georgetown University School of Medicine, Building D, Suite 232, 4000 Reservoir Road, Washington, DC 20007, USA.
| | | |
Collapse
|
6
|
Stathatos N, Wartofsky L. The euthyroid sick syndrome: is there a physiologic rationale for thyroid hormone treatment? J Endocrinol Invest 2003; 26:1174-9. [PMID: 15055468 DOI: 10.1007/bf03349153] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- N Stathatos
- Washington Hospital Center, Georgetown University School of Medicine, Washington, DC 20010-2975, USA
| | | |
Collapse
|
7
|
Stathatos N, Levetan C, Burman KD, Wartofsky L. The controversy of the treatment of critically ill patients with thyroid hormone. Best Pract Res Clin Endocrinol Metab 2001; 15:465-78. [PMID: 11800518 DOI: 10.1053/beem.2001.0164] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
There is currently a vast literature available on the changes in thyroid function tests that occur during non-thyroidal illness. The aetiology of these changes is, however, controversial, especially with respect to whether they play an adaptive role for the organism in order to cope with stress or whether they represent primary pathology of the pituitary-thyroid axis. This is particularly true for critically ill patients, in whom the most significant changes in thyroid function are observed. The changes include low levels of thyroxine and very low levels of tri-iodothyronine, which would, on the surface, appear to indicate hypothyroidism. Therapy with thyroid hormone, as either L-T4 or L-T3, has therefore been suggested because of these low values for thyroid hormones in the blood. It is, however, unclear whether treating these patients with thyroid hormone is beneficial or harmful. Multiple studies have addressed this issue with patients with cardiac disease, sepsis, pulmonary disease (e.g. acute respiratory distress syndrome) or severe infection, or with burn and trauma patients. In spite of a very large number of published studies, it is very difficult to form clear recommendations for treatment with thyroid hormone in the intensive care unit. Instead, we find the evidence far from compelling, and would advise withholding thyroid hormone therapy in the critical care setting in the absence of clear clinical or laboratory evidence for hypothyroidism.
Collapse
Affiliation(s)
- N Stathatos
- Department of Medicine, Washington Hospital Center and The MedStar Research Institute, 110 Irving Street, NW, Washington, DC 20010, USA
| | | | | | | |
Collapse
|
8
|
Trines SA, Slager CJ, van der Moer J, Verdouw PD, Krams R. Efficiency of energy transfer, but not external work, is maximized in stunned myocardium. Am J Physiol Heart Circ Physiol 2000; 279:H1264-73. [PMID: 10993793 DOI: 10.1152/ajpheart.2000.279.3.h1264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
There is no evidence regarding the effect of stunning on maximization of regional myocardial external work (EW) or efficiency of energy transfer (EET) in relation to regional afterload (end-systolic stress, sigma(es)). To that end, we studied these relationships in both the left anterior descending coronary artery (LADCA) and left circumflex coronary artery regions in anesthetized, open-chest pigs before and after LADCA stunning. In normal myocardium, EET vs. sigma(es) was maximal at 75.4 (69.7-81.0)%, whereas EW vs. sigma(es) was submaximal at 12.0 (6.61-17.3) x 10(2) J/m(3). Increasing sigma(es) increased EW by 18 (10-27)%. Regional myocardial stunning decreased EET (27%) and EW (36%) and caused the myocardium to operate both at maximal EW (EW(max)) and at maximal EET (EET(max)). EET and EW became also more sensitive to changes in sigma(es). In the nonstunned region the situation remained unchanged. Combining the data from before and after stunning, both EW(max) and EET(max) displayed a positive relationship with contractility. In conclusion, the normal regional myocardium operated at maximal EET rather than at maximal EW. Therefore, additional EW could be recruited by increasing regional afterload. After myocardial stunning, the myocardium operated at both maximal EW and maximal EET, at the cost of increased afterload sensitivity. Contractility was a major determinant of this shift.
Collapse
Affiliation(s)
- S A Trines
- Experimental Cardiology and Hemodynamics Laboratory, Thoraxcenter, Erasmus University Rotterdam, 3000 DR Rotterdam, The Netherlands
| | | | | | | | | |
Collapse
|
9
|
Timek T, Vahl CF, Bonz A, Schäffer L, Rosenberg M, Hagl S. Triiodothyronine reverses depressed contractile performance after excessive catecholamine stimulation. Ann Thorac Surg 1998; 66:1618-25. [PMID: 9875761 DOI: 10.1016/s0003-4975(98)00764-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Conflicting results have been reported regarding the acute effects of triiodothyronine (T3) on myocardial contractile performance. The present study analyzes the role of T3 in reversing the depressant effect of excessive catecholamine stimulation in isolated porcine left ventricular myocardium. METHODS Thirty-six left ventricular trabeculae (0.4 x 6.0 mm) obtained from 6 pigs were used for measurements of isometric force development, isotonic shortening, and intracellular calcium in three experimental series (measurement conditions: 37 degrees C; optimal length; supramaximal electrical stimulation, 1 Hz; calcium measurement, fura-2 ratio method; frequency, 225 Hz). In series 1, isometric force development was measured before and after a 60-minute incubation with 10(-7) mol/L epinephrine in preparations with (n = 6) and without (n = 6) preceding fura-2 loading for calcium measurements. In series 2, the acute effects of a 30-minute administration of T3 (10(-9) mol/L) on isometric force and intracellular calcium were analyzed (n = 6). In series 3, after simultaneous fura-2 loading and a 6-hour 10(-7) mol/L epinephrine exposure the effects of T3 (10(-9) mol/L, 30 minutes) on force development, shortening, and intracellular calcium transient were analyzed. RESULTS Long-term and high-dose epinephrine exposure induced a severe contractile depression with a significant reduction of isometric force development (p < 0.05) and increased diastolic (p < 0.001) and systolic calcium (p < 0.001). In normal porcine myocardium T3 had no effect on the extent of isometric force generation but accelerated the time course of force development (p < 0.05) and increased the calcium transient (p < 0.001). After induction of myocardial depression by epinephrine exposure T3 accelerated the intracellular calcium transients and reduced diastolic calcium. Triiodothyronine increased the shortening amplitude and the force amplitude (p < 0.01). CONCLUSIONS Triiodothyronine reverses depressed contractile performance after preceding high-dose epinephrine exposure in isolated porcine myocardium. Increased force amplitudes and unaltered or even reduced intracellular calcium transients argue in favor of a resensitization of the contractile apparatus for calcium by T3. The study supports a potential role for T3 treatment in depressed myocardium after previous excessive catecholamine exposure (eg, brain death, catecholamine treatment, ischemia).
Collapse
Affiliation(s)
- T Timek
- Department of Cardiac Surgery, University of Heidelberg, Germany
| | | | | | | | | | | |
Collapse
|