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Psychosocial and psychoneuroendocrinal aspects of Takotsubo syndrome

Abstract

Great advances have been made in our understanding of Takotsubo syndrome in the past decade, but the aetiology of the condition remains incompletely understood. The most established theory, that catecholamine-mediated myocardial stunning is provoked by emotional or physiological stress, is supported by the presence of supraphysiological levels of plasma catecholamines in patients with Takotsubo syndrome. For this reason, the hyperexcitability of the autonomic nervous system under conditions of physical and emotional stress is often assessed in these patients. Observational studies have indicated that a predisposing influence of chronic or traumatic stress, anxiodepressive disorders, and maladaptive personality traits are linked to the pathogenesis of Takotsubo syndrome. Chronic stress can influence autonomic function through dysregulation of the hypothalamic–pituitary–adrenal axis and contribute to the development of cardiovascular disorders. In this Perspectives article, we discuss the current knowledge of the psychoneuroendocrinological and psychosocial mechanisms underlying the pathophysiology of Takotsubo syndrome.

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Figure 1: Proposed mechanism linking psychoneuroendocrinological factors and Takotsubo syndrome (TTS).

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References

  1. Dote, K., Sato, H., Tateishi, H., Uchida, T. & Ishihara, M. Myocardial stunning due to simultaneous multivessel coronary spasms: a review of 5 cases. J. Cardiol. 21, 203–214 (in Japanese) (1991).

    CAS  PubMed  Google Scholar 

  2. Pilgrim, T. M. & Wyss, T. R. Takotsubo cardiomyopathy or transient left ventricular apical ballooning syndrome: a systematic review. Int. J. Cardiol. 124, 283–292 (2008).

    Article  PubMed  Google Scholar 

  3. Abisse, S. S. & Poppas, A. Takotsubo cardiomyopathy: a clinical review. R. I. Med. J. (203) 97, 23–27 (2014).

    Google Scholar 

  4. Citro, R. et al. Standard and advanced echocardiography in Takotsubo (stress) cardiomyopathy: clinical and prognostic implications. J. Am. Soc. Echocardiogr. 28, 57–74 (2015).

    Article  PubMed  Google Scholar 

  5. Lyon, A. R. et al. Current state of knowledge on Takotsubo syndrome: a Position Statement from the Taskforce on Takotsubo Syndrome of the Heart Failure Association of the European Society of Cardiology. Eur. J. Heart Fail. 18, 8–27 (2016).

    Article  PubMed  Google Scholar 

  6. Parodi, G. et al. Incidence, clinical findings, and outcome of women with left ventricular apical ballooning syndrome. Am. J. Cardiol. 99, 182–185 (2007).

    Article  PubMed  Google Scholar 

  7. Templin, C. et al. Clinical features and outcomes of Takotsubo (stress) cardiomyopathy. N. Engl. J. Med. 373, 929–938 (2015).

    Article  CAS  PubMed  Google Scholar 

  8. Citro, R. et al. Independent impact of RV involvement on in-hospital outcome of patients with Takotsubo syndrome. JACC Cardiovasc. Imaging http://dx.doi.org/10.1016/j.jcmg.2015.06.005 (2015).

  9. Bybee, K. A. et al. Systematic review: transient left ventricular apical ballooning: a syndrome that mimics ST-segment elevation myocardial infarction. Ann. Intern. Med. 141, 858–865 (2004).

    Article  PubMed  Google Scholar 

  10. Sharkey, S. W. et al. Acute and reversible cardiomyopathy provoked by stress in women from the United States. Circulation 111, 472–479 (2005).

    Article  PubMed  Google Scholar 

  11. Prasad, A., Lerman, A. & Rihal, C. S. Apical ballooning syndrome (Tako-Tsubo or stress cardiomyopathy): a mimic of acute myocardial infarction. Am. Heart J. 155, 408–417 (2008).

    Article  PubMed  Google Scholar 

  12. Ibanez, B., Navarro, F., Cordoba, M., Alberca, M. & Farre, J. Tako-tsubo transient left ventricular apical ballooning: is intravascular ultrasound the key to resolve the enigma? Heart 91, 102–104 (2005).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  13. Merli, E., Sutcliffe, S., Gori, M. & Sutherland, G. G. Tako-Tsubo cardiomyopathy: new insights into the possible underlying pathophysiology. Eur. J. Echocardiogr. 7, 53–61 (2006).

    Article  PubMed  Google Scholar 

  14. Villareal, R. P., Achari, A., Wilansky, S. & Wilson, J. M. Anteroapical stunning and left ventricular outflow tract obstruction. Mayo Clin. Proc. 76, 79–83 (2001).

    Article  CAS  PubMed  Google Scholar 

  15. Wittstein, I. S. et al. Neurohumoral features of myocardial stunning due to sudden emotional stress. N. Engl. J. Med. 352, 539–548 (2005).

    Article  CAS  PubMed  Google Scholar 

  16. Nef, H. M. et al. Tako-Tsubo cardiomyopathy: intraindividual structural analysis in the acute phase and after functional recovery. Eur. Heart J. 28, 2456–2464 (2007).

    Article  PubMed  Google Scholar 

  17. Stein, B. et al. Relation between contractile function and regulatory cardiac proteins in hypertrophied hearts. Am. J. Physiol. 270, H2021–H2028 (1996).

    CAS  PubMed  Google Scholar 

  18. Boluyt, M. O. et al. Isoproterenol infusion induces alterations in expression of hypertrophy-associated genes in rat heart. Am. J. Physiol. 269, H638–H647 (1995).

    CAS  PubMed  Google Scholar 

  19. Nef, H. M. et al. Abnormalities in intracellular Ca2+ regulation contribute to the pathomechanism of Tako-Tsubo cardiomyopathy. Eur. Heart J. 30, 2155–2164 (2009).

    Article  CAS  PubMed  Google Scholar 

  20. Lyon, A. R., Rees, P. S., Prasad, S., Poole-Wilson, P. A. & Harding, S. E. Stress (Takotsubo) cardiomyopathy — a novel pathophysiological hypothesis to explain catecholamine-induced acute myocardial stunning. Nat. Clin. Pract. Cardiovasc. Med. 5, 22–29 (2008).

    Article  CAS  PubMed  Google Scholar 

  21. Nef, H. M. et al. Sympathoadrenergic overstimulation in Tako-Tsubo cardiomyopathy triggered by physical and emotional stress. Int. J. Cardiol. 130, 266–268 (2008).

    Article  PubMed  Google Scholar 

  22. Ueyama, T. et al. Chronic estrogen supplementation following ovariectomy improves the emotional stress-induced cardiovascular responses by indirect action on the nervous system and by direct action on the heart. Circ. J. 71, 565–573 (2007).

    Article  CAS  PubMed  Google Scholar 

  23. Strike, P. C. & Steptoe, A. Psychosocial factors in the development of coronary artery disease. Prog. Cardiovasc. Dis. 46, 337–347 (2004).

    Article  PubMed  Google Scholar 

  24. Rosengren, A. et al. Association of psychosocial risk factors with risk of acute myocardial infarction in 11119 cases and 13648 controls from 52 countries (the INTERHEART study): case–control study. Lancet 364, 953–962 (2004).

    Article  PubMed  Google Scholar 

  25. Vaccarino, V. & Bremner, J. D. Traumatic stress is heartbreaking. Biol. Psychiatry 74, 790–792 (2013).

    Article  PubMed  PubMed Central  Google Scholar 

  26. Coughlin, S. S. Post-traumatic stress disorder and cardiovascular disease. Open Cardiovasc. Med. J. 5, 164–170 (2011).

    Article  PubMed  PubMed Central  Google Scholar 

  27. Ahmadi, N. et al. Post-traumatic stress disorder, coronary atherosclerosis, and mortality. Am. J. Cardiol. 108, 29–33 (2011).

    Article  PubMed  Google Scholar 

  28. Mols, F., Martens, E. J. & Denollet, J. Type D personality and depressive symptoms are independent predictors of impaired health status following acute myocardial infarction. Heart 96, 30–35 (2010).

    Article  CAS  PubMed  Google Scholar 

  29. Denollet, J., Pedersen, S. S., Vrints, C. J. & Conraads, V. M. Usefulness of type D personality in predicting five-year cardiac events above and beyond concurrent symptoms of stress in patients with coronary heart disease. Am. J. Cardiol. 97, 970–973 (2006).

    Article  PubMed  Google Scholar 

  30. Vidi, V. et al. Clinical characteristics of tako-tsubo cardiomyopathy. Am. J. Cardiol. 104, 578–582 (2009).

    Article  PubMed  Google Scholar 

  31. Dias, A. et al. Clinical features of takotsubo cardiomyopathy — a single-center experience. Cardiology 126, 126–130 (2013).

    Article  PubMed  Google Scholar 

  32. Summers, M. R., Lennon, R. J. & Prasad, A. Pre-morbid psychiatric and cardiovascular diseases in apical ballooning syndrome (tako-tsubo/stress-induced cardiomyopathy): potential pre-disposing factors? J. Am. Coll. Cardiol. 55, 700–701 (2010).

    Article  PubMed  Google Scholar 

  33. Waldenborg, M., Soholat, M., Kahari, A., Emilsson, K. & Frobert, O. Multidisciplinary assessment of tako tsubo cardiomyopathy: a prospective case study. BMC Cardiovasc. Disord. 11, 14 (2011).

    Article  PubMed  PubMed Central  Google Scholar 

  34. Delmas, C. et al. Anxiodepressive disorders and chronic psychological stress are associated with Tako-Tsubo cardiomyopathy — New Physiopathological Hypothesis. Circ. J. 77, 175–180 (2013).

    Article  PubMed  Google Scholar 

  35. Del Pace, S. et al. Anxiety trait in patients with stress-induced cardiomyopathy: a case–control study. Clin. Res. Cardiol. 100, 523–529 (2011).

    Article  PubMed  Google Scholar 

  36. Kastaun, S. et al. Cortisol awakening and stress response, personality and psychiatric profiles in patients with takotsubo cardiomyopathy. Heart 100, 1786–1792 (2014).

    Article  CAS  PubMed  Google Scholar 

  37. Lacey, C. et al. Broken heart syndrome — is it a psychosomatic disorder? J. Psychosom. Res. 77, 158–160 (2014).

    Article  PubMed  Google Scholar 

  38. Hefner, J. & Csef, H. Unfavorable stress management strategies in patients with Tako-Tsubo cardiomyopathy (TTC). Int. J. Cardiol. 168, 4582–4583 (2013).

    Article  PubMed  Google Scholar 

  39. Hefner, J., Michalke, F. & Csef, H. Stress management in females with Tako-Tsubo cardiomyopathy compared to females with acute coronary syndrome. Int. J. Cardiol. 170, e1–e2 (2013).

    Article  PubMed  Google Scholar 

  40. Kastaun, S. et al. Locus of control and stress management strategies in women with takotsubo cardiomyopathy. Int. J. Cardiol. 177, 658–660 (2014).

    Article  PubMed  Google Scholar 

  41. Compare, A. et al. Type D personality is associated with the development of stress cardiomyopathy following emotional triggers. Ann. Behav. Med. 45, 299–307 (2013).

    Article  PubMed  Google Scholar 

  42. Denollet, J. & Kupper, N. Type-D personality, depression, and cardiac prognosis: cortisol dysregulation as a mediating mechanism. J. Psychosom. Res. 62, 607–609 (2007).

    Article  PubMed  Google Scholar 

  43. Spindler, H., Pedersen, S. S., Serruys, P. W., Erdman, R. A. & van Domburg, R. T. Type-D personality predicts chronic anxiety following percutaneous coronary intervention in the drug-eluting stent era. J. Affect. Disord. 99, 173–179 (2007).

    Article  PubMed  Google Scholar 

  44. Quartana, P. J. & Burns, J. W. Emotion suppression affects cardiovascular responses to initial and subsequent laboratory stressors. Br. J. Health Psychol. 15, 511–528 (2010).

    Article  PubMed  Google Scholar 

  45. Wittstein, I. S., Proietti, R. & Compare, A. in Stress Proof the Heart: Behavioral Interventions for Cardiac Patients (ed. Dornelas, E. A.) 93–116 (Springer, 2012).

    Book  Google Scholar 

  46. de Voogd, J. N., Sanderman, R. & Coyne, J. C. A meta-analysis of spurious associations between type D personality and cardiovascular disease endpoints. Ann. Behav. Med. 44, 136–137 (2012).

    Article  PubMed  PubMed Central  Google Scholar 

  47. Coyne, J. C. et al. Lack of prognostic value of type D personality for mortality in a large sample of heart failure patients. Psychosom. Med. 73, 557–562 (2011).

    Article  PubMed  Google Scholar 

  48. Scantlebury, D. C. et al. Stress-coping skills and neuroticism in apical ballooning syndrome (Takotsubo/stress cardiomyopathy). Open Heart 3, e000312 (2016).

    Article  PubMed  PubMed Central  Google Scholar 

  49. Denollet, J. et al. Cytokines and immune activation in systolic heart failure: the role of Type D personality. Brain Behav. Immun. 17, 304–309 (2003).

    Article  CAS  PubMed  Google Scholar 

  50. Light, K. C., Kothandapani, R. V. & Allen, M. T. Enhanced cardiovascular and catecholamine responses in women with depressive symptoms. Int. J. Psychophysiol. 28, 157–166 (1998).

    Article  CAS  PubMed  Google Scholar 

  51. Cyranowski, J. M., Hofkens, T. L., Swartz, H. A., Salomon, K. & Gianaros, P. J. Cardiac vagal control in nonmedicated depressed women and nondepressed controls: impact of depression status, lifetime trauma history, and respiratory factors. Psychosom. Med. 73, 336–343 (2011).

    Article  PubMed  PubMed Central  Google Scholar 

  52. Carney, R. M. et al. Depression, heart rate variability, and acute myocardial infarction. Circulation 104, 2024–2028 (2001).

    Article  CAS  PubMed  Google Scholar 

  53. Ortak, J. et al. Evolution of cardiac autonomic nervous activity indices in patients presenting with transient left ventricular apical ballooning. Pace 32, S21–S25 (2009).

    Article  PubMed  Google Scholar 

  54. Akashi, Y. J., Barbaro, G., Sakurai, T., Nakazawa, K. & Miyake, F. Cardiac autonomic imbalance in patients with reversible ventricular dysfunction takotsubo cardiomyopathy. QJM 100, 335–343 (2007).

    Article  CAS  PubMed  Google Scholar 

  55. Sciagra, R. et al. Abnormal response to mental stress in patients with Takotsubo cardiomyopathy detected by gated single photon emission computed tomography. Eur. J. Nucl. Med. Mol. Imaging 37, 765–772 (2010).

    Article  PubMed  Google Scholar 

  56. Miller, G. E., Chen, E. & Zhou, E. S. If it goes up, must it come down? Chronic stress and the hypothalamic–pituitary–adrenocortical axis in humans. Psychol. Bull. 133, 25–45 (2007).

    Article  PubMed  Google Scholar 

  57. Kumari, M. et al. Cortisol secretion and fatigue: associations in a community based cohort. Psychoneuroendocrinology 34, 1476–1485 (2009).

    Article  CAS  PubMed  Google Scholar 

  58. Riva, R., Mork, P. J., Westgaard, R. H. & Lundberg, U. Comparison of the cortisol awakening response in women with shoulder and neck pain and women with fibromyalgia. Psychoneuroendocrinology 37, 299–306 (2012).

    Article  CAS  PubMed  Google Scholar 

  59. Weissbecker, I., Floyd, A., Dedert, E., Salmon, P. & Sephton, S. Childhood trauma and diurnal cortisol disruption in fibromyalgia syndrome. Psychoneuroendocrinology 31, 312–324 (2006).

    Article  CAS  PubMed  Google Scholar 

  60. McEwen, B. S. Protective and damaging effects of stress mediators: central role of the brain. Dialogues Clin. Neurosci. 8, 367–381 (2006).

    PubMed  PubMed Central  Google Scholar 

  61. Chrousos, G. P. Stress and disorders of the stress system. Nat. Rev. Endocrinol. 5, 374–381 (2009).

    Article  CAS  PubMed  Google Scholar 

  62. Dickerson, S. S. & Kemeny, M. E. Acute stressors and cortisol responses: a theoretical integration and synthesis of laboratory research. Psychol. Bull. 130, 355–391 (2004).

    Article  PubMed  Google Scholar 

  63. Kudielka, B. M., Gierens, A., Hellhammer, D. H., Wust, S. & Schlotz, W. Salivary cortisol in ambulatory assessment — some dos, some don'ts, and some open questions. Psychosom. Med. 74, 418–431 (2012).

    Article  CAS  PubMed  Google Scholar 

  64. Kudielka, B. M., Hellhammer, D. H. & Wüst, S. Why do we respond so differently? Reviewing determinants of human salivary cortisol responses to challenge. Psychoneuroendocrinology 34, 2–18 (2009).

    Article  CAS  PubMed  Google Scholar 

  65. Heim, C., Ehlert, U. & Hellhammer, D. H. The potential role of hypocortisolism in the pathophysiology of stress-related bodily disorders. Psychoneuroendocrinology 25, 1–35 (2000).

    Article  CAS  PubMed  Google Scholar 

  66. Nater, U. M. et al. Attenuated morning salivary cortisol concentrations in a population-based study of persons with chronic fatigue syndrome and well controls. J. Clin. Endocrinol. Metab. 93, 703–709 (2008).

    Article  CAS  PubMed  Google Scholar 

  67. Gaab, J. et al. Stress-induced changes in LPS-induced pro-inflammatory cytokine production in chronic fatigue syndrome. Psychoneuroendocrinology 30, 188–198 (2005).

    Article  CAS  PubMed  Google Scholar 

  68. Rohleder, N., Joksimovic, L., Wolf, J. M. & Kirschbaum, C. Hypocortisolism and increased glucocorticoid sensitivity of pro-inflammatory cytokine production in Bosnian war refugees with posttraumatic stress disorder. Biol. Psychiatry 55, 745–751 (2004).

    Article  CAS  PubMed  Google Scholar 

  69. Maes, M. et al. The immune-inflammatory pathophysiology of fibromyalgia: increased serum soluble gp130, the common signal transducer protein of various neurotrophic cytokines. Psychoneuroendocrinology 24, 371–383 (1999).

    Article  CAS  PubMed  Google Scholar 

  70. Imbierowicz, K. & Egle, U. T. Childhood adversities in patients with fibromyalgia and somatoform pain disorder. Eur. J. Pain 7, 113–119 (2003).

    Article  PubMed  Google Scholar 

  71. Chikanza, I. C., Petrou, P., Kingsley, G., Chrousos, G. & Panayi, G. S. Defective hypothalamic response to immune and inflammatory stimuli in patients with rheumatoid arthritis. Arthritis Rheum. 35, 1281–1288 (1992).

    Article  CAS  PubMed  Google Scholar 

  72. Buske-Kirschbaum, A., Ebrecht, M. & Hellhammer, D. H. Blunted HPA axis responsiveness to stress in atopic patients is associated with the acuity and severeness of allergic inflammation. Brain Behav. Immun. 24, 1347–1353 (2010).

    Article  CAS  PubMed  Google Scholar 

  73. Nijm, J., Kristenson, M., Olsson, A. G. & Jonasson, L. Impaired cortisol response to acute stressors in patients with coronary disease. Implications for inflammatory activity. J. Intern. Med. 262, 375–384 (2007).

    Article  CAS  PubMed  Google Scholar 

  74. Eller, N. H., Netterstrom, B. & Allerup, P. Progression in intima media thickness — the significance of hormonal biomarkers of chronic stress. Psychoneuroendocrinology 30, 715–723 (2005).

    Article  CAS  PubMed  Google Scholar 

  75. Kawai, S. & Shimada, T. Inflammation in takotsubo cardiomyopathy? Inquiry from 'Guidelines for Diagnosis and Treatment of Myocarditis' (JCS 2009). J. Cardiol. 63, 247–249 (2014).

    Article  PubMed  Google Scholar 

  76. Pereira, V. H. et al. Central autonomic nervous system response to autonomic challenges is altered in patients with a previous episode of Takotsubo cardiomyopathy. Eur. Heart J. Acute Cardiovasc. Care 5, 152–163 (2016).

    Article  PubMed  Google Scholar 

  77. Nater, U. M. & Rohleder, N. Salivary alpha-amylase as a non-invasive biomarker for the sympathetic nervous system: current state of research. Psychoneuroendocrinology 34, 486–496 (2009).

    Article  CAS  PubMed  Google Scholar 

  78. van Stegeren, A., Rohleder, N., Everaerd, W. & Wolf, O. T. Salivary alpha amylase as marker for adrenergic activity during stress: effect of betablockade. Psychoneuroendocrinology 31, 137–141 (2006).

    Article  CAS  PubMed  Google Scholar 

  79. Madhavan, M., Borlaug, B. A., Lerman, A., Rihal, C. S. & Prasad, A. Stress hormone and circulating biomarker profile of apical ballooning syndrome (Takotsubo cardiomyopathy): insights into the clinical significance of B-type natriuretic peptide and troponin levels. Heart 95, 1436–1441 (2009).

    Article  CAS  PubMed  Google Scholar 

  80. Collste, O., Tornvall, P., Sundin, O., Alam, M. & Frick, M. No myocardial vulnerability to mental stress in Takotsubo stress cardiomyopathy. PLoS ONE 9, e93697 (2014).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  81. Fries, E., Hesse, J., Hellhammer, J. & Hellhammer, D. H. A new view on hypocortisolism. Psychoneuroendocrinology 30, 1010–1016 (2005).

    Article  CAS  PubMed  Google Scholar 

  82. Golczynska, A., Lenders, J. W. & Goldstein, D. S. Glucocorticoid-induced sympathoinhibition in humans. Clin. Pharmacol. Ther. 58, 90–98 (1995).

    Article  CAS  PubMed  Google Scholar 

  83. Het, S., Schoofs, D., Rohleder, N. & Wolf, O. T. Stress-induced cortisol level elevations are associated with reduced negative affect after stress: indications for a mood-buffering cortisol effect. Psychosom. Med. 74, 23–32 (2012).

    Article  CAS  PubMed  Google Scholar 

  84. Roberts, A. D., Papadopoulos, A. S., Wessely, S., Chalder, T. & Cleare, A. J. Salivary cortisol output before and after cognitive behavioural therapy for chronic fatigue syndrome. J. Affect. Disord. 115, 280–286 (2009).

    Article  CAS  PubMed  Google Scholar 

  85. Nijhof, S. L. et al. The role of hypocortisolism in chronic fatigue syndrome. Psychoneuroendocrinology 42, 199–206 (2014).

    Article  CAS  PubMed  Google Scholar 

  86. Carney, R. M. et al. Association of depression with reduced heart rate variability in coronary artery disease. Am. J. Cardiol. 76, 562–564 (1995).

    Article  CAS  PubMed  Google Scholar 

  87. Stein, P. K. et al. Severe depression is associated with markedly reduced heart rate variability in patients with stable coronary heart disease. J. Psychosom. Res. 48, 493–500 (2000).

    Article  CAS  PubMed  Google Scholar 

  88. Miu, A. C., Heilman, R. M. & Miclea, M. Reduced heart rate variability and vagal tone in anxiety: trait versus state, and the effects of autogenic training. Auton. Neurosci. 145, 99–103 (2009).

    Article  PubMed  Google Scholar 

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M.J. and S.K. researched data for the article, discussed its content, and wrote, reviewed, and edited the manuscript before submission. T.G. and M.T. discussed the content of the article and reviewed and edited the manuscript before submission. M.Y. researched data for the article and discussed its content.

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Correspondence to Martin Juenemann.

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Kastaun, S., Gerriets, T., Tschernatsch, M. et al. Psychosocial and psychoneuroendocrinal aspects of Takotsubo syndrome. Nat Rev Cardiol 13, 688–694 (2016). https://doi.org/10.1038/nrcardio.2016.108

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