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Lu X, Li P, Teng C, Cai P, Jin L, Li C, Liu Q, Pan S, Dixon RA, Wang B. Prognostic factors of Takotsubo cardiomyopathy: a systematic review. ESC Heart Fail 2021; 8:3663-3689. [PMID: 34374223 PMCID: PMC8497208 DOI: 10.1002/ehf2.13531] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/04/2021] [Accepted: 07/05/2021] [Indexed: 02/05/2023] Open
Abstract
Takotsubo cardiomyopathy (TCM), characterized by reversible ventricular dysfunction, has similar mortality to acute coronary syndrome. With the growing interest in the diagnosis of and interventions for TCM, many risk factors had been found to affect the prognosis of TCM patients, such as age, sex, and pre-existing diseases. Because of the incomplete understanding of the pathophysiologic mechanism in TCM, evidence-based medical therapy for this condition is lacking. Early intervention on risk factors may improve the outcomes of TCM. In this review, we sought to provide up-to-date evidence on risk factors and medical therapies that affect TCM outcome. We found that male sex, physical triggers, and certain comorbidities such as chronic kidney disease, malignant disease, higher body mass index, sepsis, chronic obstructive pulmonary disease, and anaemia were associated with poor TCM prognosis. In contrast, race, hyperlipidaemia, diabetes mellitus, and mood disorders were not clearly associated with TCM prognosis. We also reviewed the effect of medical therapies on TCM outcome, including angiotensin-converting enzyme inhibitors/angiotensin receptor blockers, β-blockers, calcium channel blockers, and statins. The evidence that these medications confer a survival benefit on TCM patients is limited. Understanding these prognostic factors could help develop risk-stratification tools for TCM and establish effective prevention and interventions for this not-so-benign condition. Further multicentre clinical studies with large samples and meta-analyses of findings from previous studies are needed to address the inconsistent findings among the many potential risk factors for TCM.
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Affiliation(s)
- Xiaojia Lu
- Department of Cardiologythe First Affiliated Hospital of Shantou University Medical College57 Changping RoadShantou515041China
| | - Pengyang Li
- Division of CardiologyPauley Heart Center, Virginia Commonwealth UniversityRichmondVAUSA
| | - Catherine Teng
- Department of MedicineYale New Haven Health Greenwich HospitalGreenwichCTUSA
| | - Peng Cai
- Department of Mathematical SciencesWorcester Polytechnic InstituteWorcesterMAUSA
| | - Ling Jin
- Department of MedicineMetrowest Medical CenterFraminghamMAUSA
| | - Chenlin Li
- Department of Cardiologythe First Affiliated Hospital of Shantou University Medical College57 Changping RoadShantou515041China
| | - Qi Liu
- Wafic Said Molecular Cardiology Research LaboratoryTexas Heart InstituteHoustonTXUSA
| | - Su Pan
- Wafic Said Molecular Cardiology Research LaboratoryTexas Heart InstituteHoustonTXUSA
| | - Richard A.F. Dixon
- Wafic Said Molecular Cardiology Research LaboratoryTexas Heart InstituteHoustonTXUSA
| | - Bin Wang
- Department of Cardiologythe First Affiliated Hospital of Shantou University Medical College57 Changping RoadShantou515041China
- Clinical Research Centerthe First Affiliated Hospital of Shantou University Medical CollegeShantouChina
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2
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Kinno R, Ono K. Takotsubo Syndrome: Optimizing Care with a Multidisciplinary Approach. J Multidiscip Healthc 2021; 14:2487-2499. [PMID: 34531661 PMCID: PMC8439972 DOI: 10.2147/jmdh.s283667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 08/23/2021] [Indexed: 12/19/2022] Open
Abstract
Symptoms of takotsubo syndrome (TTS) include acute and transient regional systolic dysfunction of the left ventricle, as well as a variety of wall-motion abnormalities. The clinical features of TTS, including initial symptoms, cardiac biomarkers, and electrocardiogram (ECG) changes, are similar to those of acute coronary syndrome, with the exception that TTS patients typically have no obstructive coronary artery disease. TTS primarily affects elderly women, and emotional or physical stress is a common cause of the disease. Exaggerated sympathetic stimulation associated with dysfunction of the limbic system has also been reported to be related to TTS occurrence. Cancer also induces emotional and physical stress. Therefore, optimization of TTS care should involve cardiac, neurological, psychiatric, and oncological approaches. The first step in optimizing TTS care is to diagnose it by cardiac means. Multimodality imaging, including ECG, echocardiogram, angiography, ventriculography, and cardiac magnetic resonance imaging, is indispensable for diagnosis, therapy management, and the evaluation of prognosis in the acute and chronic phases of TTS. The current cardiac approach during the acute phase is primarily supportive, with the goal of preventing life-threatening complications. As central nervous system diseases frequently trigger TTS, a neurological approach is also required. Appropriate psychiatric medication may reduce the risk of TTS recurrence, as not only psychiatric disorders themselves but also psychiatric medications can be the trigger for TTS. Several conditions are associated with TTS, including the novel coronavirus disease 2019. We present current knowledge of TTS in this review and describe how to optimize TTS care through a multidisciplinary approach.
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Affiliation(s)
- Ryuta Kinno
- Division of Neurology, Department of Internal Medicine, Showa University Northern Yokohama Hospital, Yokohama City, Kanagawa, 224-8503, Japan
| | - Kenjiro Ono
- Division of Neurology, Department of Medicine, Showa University School of Medicine, Tokyo, 142-8555, Japan
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3
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Shen SH, Liu HT. Takotsubo Syndrome Associated with a New Onset Manic Episode: A case report. J Int Med Res 2021; 49:3000605211034997. [PMID: 34344220 PMCID: PMC8358514 DOI: 10.1177/03000605211034997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Takotsubo syndrome is a condition that mimics acute coronary syndrome. The exact pathogenesis of the condition is unclear but it tends to occur more frequently in elderly women and a large proportion of cases have acute, former, or chronic neurologic or psychiatric disorders. Here we describe a 55-year-old female patient, who was brought to the emergency department presenting with a new-onset manic episode characterized by grandiosity, distractibility, decreased need for sleep, and increased goal-directed behaviours. She experienced chest pain approximately two days later, and non-ST elevation myocardial infarction was observed. The emergent coronary angiogram showed patent coronary arteries, and a diagnosis of Takotsubo syndrome was made. We suggest clinical multidisciplinary vigilance for somatic complaints, especially cardiac ones, in people with psychiatric disorders in order to make timely therapeutic interventions.
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Affiliation(s)
- Shin-Heng Shen
- Department of Psychiatry, Chang Gung Memorial Hospital at Linkou, 333, Taoyuan, Taiwan.,School of Medicine, Chang Gung University, 333, Taoyuan, Taiwan
| | - Hao-Tien Liu
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital at Linkou, 333, Taoyuan, Taiwan.,School of Medicine, Chang Gung University, 333, Taoyuan, Taiwan
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4
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Sidhu DS, Farrelly R, Lally J. Takotsubo syndrome in bipolar affective disorder with alcohol withdrawal syndrome. BMJ Case Rep 2020; 13:13/10/e236070. [PMID: 33130580 DOI: 10.1136/bcr-2020-236070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
A 40-year-old woman presented to the emergency department with epigastric pain and agitation. She recently separated from her husband and was consuming 30 units of alcohol daily for 5 days. She had a history of bipolar affective disorder, borderline personality disorder and alcohol dependence syndrome. Investigations revealed the following: elevated troponin I levels, ST elevation, early Q waves and prolonged QTc. Emergency angiogram confirmed Takotsubo's appearance. Medications with QTc prolongation propensity were held. A multidisciplinary apporach was required. She was discharged 10 days later when medically stabilised. It was later discovered that she died unexpectedly the following month. Takotsubo syndrome is a rare but unique cause of cardiac failure. This case highlights the need to consider the differential of Takotsubo syndrome in people presenting with possible acute ischaemic events, particularly in those with a history of combined emotional and physical stressors and a background history of mood disorder.
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Affiliation(s)
| | - Richard Farrelly
- Liaison Psychiatry, Mater Misericordiae University Hospital, Dublin, Ireland
| | - John Lally
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King's College London, London, UK.,Department of Psychiatry, Royal College of Surgeons in Ireland, Dublin, Ireland.,Department of Psychiatry, Mater Misericordiae University Hospital, Dublin, Ireland
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5
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Bottari G, Trotta S, Marzullo A, Meliota G, Ciccone MM, Solarino B. Sudden cardiac death after robbery: Homicide or natural death? J Forensic Leg Med 2020; 75:102057. [PMID: 32949898 DOI: 10.1016/j.jflm.2020.102057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 09/05/2020] [Accepted: 09/10/2020] [Indexed: 10/23/2022]
Abstract
Tako-Tsubo is one of a number of rare acquired cardiomyopathies that are characterized by left ventricular dyskinesia and symptomatology typical of acute myocardial infarction (AMI). The most important feature is that the clinical features are triggered by a severe physical or emotional stress. The authors describe the story of a woman, who was brutally assaulted by two men during a house robbery and died from sudden heart failure 8 hours later, after being taken to hospital. External examination revealed no macroscopic alteration of the inner organs, whereas microscopy showed contraction bands with myocardial necrosis, subendocardial and interstitial neutrophil infiltration and fibrosis. These findings were consistent with death due to stress cardiomyopathy even in the absence of previous heart disease. The robbers were convicted of homicide and sentenced to eighteen years in prison.
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Affiliation(s)
- Giampiero Bottari
- Institute of Legal Medicine, Department of Interdisciplinary Medicine (DIM), University of Bari, Piazza G. Cesare 11, 70124, Bari, Italy
| | - Silvia Trotta
- Institute of Legal Medicine, Department of Interdisciplinary Medicine (DIM), University of Bari, Piazza G. Cesare 11, 70124, Bari, Italy.
| | - Andrea Marzullo
- Pathology Unit, Department of Emergency and Transplantation (DETO), University of Bari, Piazza G. Cesare 11, 70124, Bari, Italy
| | - Giovanni Meliota
- Department of Pediatric Cardiology, Giovanni XXIII Pediatric Hospital, Via G. Amendola 207, 70126, Bari, Italy
| | - Marco Matteo Ciccone
- Section of Cardiovascular Diseases, Department of Emergency and Organ Transplantation (DETO) University of Bari, Piazza G. Cesare 11, 70124, Bari, Italy
| | - Biagio Solarino
- Institute of Legal Medicine, Department of Interdisciplinary Medicine (DIM), University of Bari, Piazza G. Cesare 11, 70124, Bari, Italy
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Idris A, Christensen JL, Hamandi M, Bayya S, Wang Z, Sayfo S, Dib C, Potluri S, Szerlip M, Al-Azizi KM. Takotsubo cardiomyopathy and acute manic attack. Proc (Bayl Univ Med Cent) 2019; 33:80-82. [PMID: 32063780 DOI: 10.1080/08998280.2019.1686912] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 10/24/2019] [Accepted: 10/28/2019] [Indexed: 10/25/2022] Open
Abstract
Takotsubo cardiomyopathy predominantly occurs in women, with a high incidence in patients with psychiatric diseases. We present a 64-year-old white woman with an acute manic episode complicated by rhabdomyolysis and takotsubo cardiomyopathy.
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Affiliation(s)
- Amr Idris
- Division of Cardiology, The Heart Hospital Baylor Plano, Baylor Scott & WhitePlanoTexas
| | - Jared L Christensen
- Division of Cardiology, The Heart Hospital Baylor Plano, Baylor Scott & WhitePlanoTexas
| | - Mohanad Hamandi
- Division of Cardiology, The Heart Hospital Baylor Plano, Baylor Scott & WhitePlanoTexas
| | - Swathie Bayya
- Division of Internal Medicine, The Heart Hospital Baylor Plano, Baylor Scott & WhitePlanoTexas
| | - Zuyue Wang
- Division of Cardiology, The Heart Hospital Baylor Plano, Baylor Scott & WhitePlanoTexas
| | - Sameh Sayfo
- Division of Cardiology, The Heart Hospital Baylor Plano, Baylor Scott & WhitePlanoTexas
| | - Chadi Dib
- Division of Cardiology, The Heart Hospital Baylor Plano, Baylor Scott & WhitePlanoTexas
| | - Srinivasa Potluri
- Division of Cardiology, The Heart Hospital Baylor Plano, Baylor Scott & WhitePlanoTexas
| | - Molly Szerlip
- Division of Cardiology, The Heart Hospital Baylor Plano, Baylor Scott & WhitePlanoTexas
| | - Karim M Al-Azizi
- Division of Cardiology, The Heart Hospital Baylor Plano, Baylor Scott & WhitePlanoTexas
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7
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Cardiomyopathy Secondary to Long-Term Treatment With Lithium: A Case Report and Literature Review. J Clin Psychopharmacol 2018; 38:157-159. [PMID: 29420358 DOI: 10.1097/jcp.0000000000000848] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Nayeri A, Rafla-Yuan E, Krishnan S, Ziaeian B, Cadeiras M, McPherson JA, Wells QS. Psychiatric Illness in Takotsubo (Stress) Cardiomyopathy: A Review. PSYCHOSOMATICS 2018; 59:220-226. [PMID: 29544664 PMCID: PMC7652383 DOI: 10.1016/j.psym.2018.01.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 01/26/2018] [Accepted: 01/29/2018] [Indexed: 11/25/2022]
Abstract
BACKGROUND Takotsubo cardiomyopathy (TC), also known as stress-induced cardiomyopathy, has been increasingly described in relation to psychiatric illness. METHODS We performed a literature review to identify the key findings related to psychiatric illness in TC that may be relevant to the practice of mental health and other health care providers. RESULTS The association of psychiatric illness with TC in addition to the spectrum of psychiatric illness found in TC, the role of exacerbation or treatment of psychiatric illness in triggering TC, different modes of presentation, prognostic implications, and long-term management of psychiatric illness in TC are discussed. Additionally, we review the limitations of the pre-existing literature and suggest areas of future research. CONCLUSIONS There is a strong association between pre-existing psychiatric illness, particularly anxiety and mood spectrum disorders, and TC. Acute exacerbation of psychiatric illness, rapid uptitration or overdose of certain psychotropic agents, and electroconvulsive therapy may trigger TC. Further studies are needed to better evaluate the prognostic significance and long-term management of psychiatric illness in TC.
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Affiliation(s)
- Arash Nayeri
- Department of Medicine, University of California, Los Angeles, CA.
| | - Eric Rafla-Yuan
- Department of Psychiatry, University of California, San Diego, CA
| | | | - Boback Ziaeian
- Department of Medicine, University of California, Los Angeles, CA
| | - Martin Cadeiras
- Department of Medicine, University of California, Los Angeles, CA
| | - John A McPherson
- Department of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Quinn S Wells
- Department of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN
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9
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Shapiro PA. Psychiatric Aspects of Heart Disease (and Cardiac Aspects of Psychiatric Disease) in Critical Care. Crit Care Clin 2017; 33:619-634. [PMID: 28601137 DOI: 10.1016/j.ccc.2017.03.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Strong emotional reactions are common in patients admitted to cardiac critical care; only some are pathological. Cardiac critical care and associated technologies are associated with predictable psychiatric problems. Many occur as secondary complications of the medical status of the patient, which must be carefully assessed. Depression is common in patients with coronary disease and also for patients with heart failure; treatment is helpful, but persistent depression is associated with elevated morbidity and mortality. Preexisting psychiatric disorders may predispose to heart disease, and they and their treatment may affect critical care management.
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Affiliation(s)
- Peter A Shapiro
- Department of Psychiatry, Columbia University Medical Center, College of Physicians and Surgeons, Columbia University, 622 West 168 Street Box 427, New York, NY 10032, USA; Consultation-Liaison Psychiatry Service, New York-Presbyterian Hospital Columbia University Medical Center, 622 West 168 Street, New York, NY 10032, USA.
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10
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Hefner J, Csef H, Frantz S, Glatter N, Warrings B. Recurrent Tako-Tsubo cardiomyopathy (TTC) in a pre-menopausal woman: late sequelae of a traumatic event? BMC Cardiovasc Disord 2015; 15:3. [PMID: 25601763 PMCID: PMC4361199 DOI: 10.1186/1471-2261-15-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 01/08/2015] [Indexed: 02/07/2023] Open
Abstract
Background “Tako-Tsubo cardiomyopathy” (TTC) is a syndrome characterized by left ventricular (LV) wall motion abnormalities, usually without coronary artery disease, mimicking the diagnosis of acute coronary syndrome. It most often affects post-menopausal women and TTC tends to run a benign course with very low rates of recurrence, complications or mortality. The condition is also called “stress-induced cardiomyopathy” because acute physical or emotional stress appears to be frequently related to its onset. The pathogenic role of premorbid or comorbid psychiatric illnesses has been discussed controversially. For the first time, we present a case of fourfold recurrent TTC with severe complications in a pre-menopausal woman. Furthermore, a long history of flaring posttraumatic stress symptoms anteceded the first event. Case presentation A 43-year old, pre-menopausal Caucasian woman was hospitalized with symptoms of acute coronary syndrome. Clinical examination revealed hypokinetic wall motion in the apical ventricular region with no signs of coronary artery disease and diagnosis of TTC was established. She experienced recurrence three times within the following ten months, which led to thrombembolism and myocardial scarring among others. The circumstances of chronic distress were striking. 16 years ago she miscarried after having removed a myoma according to her doctor’s suggestion. Since then, she has suffered from symptoms of posttraumatic distress which peaked annually at the day of abortion. Chronic distress became even more pronounced after the premature birth of a daughter some years later. The first event of TTC occurred after a family dispute about parenting. Conclusion This is the first case report of fourfold TTC in a pre-menopausal woman. From somatic perspectives, the course of the disease with recurrences and complications underlines the fact that TTC is not entirely benign. Furthermore, it is the first case report of long lasting symptoms of traumatic stress anteceding TTC. Close connections between adrenergic signaling and late onset of clinical stress symptoms are well known in the psychopathology of traumatization. Although larger clinical trials are needed to elucidate possible interactions of premorbid psychiatric illnesses and TTC, cardiologists should be vigilant especially in cases of recurrent TTC.
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Affiliation(s)
- Jochen Hefner
- Section of Psychosomatic Medicine and Psychotherapy, Department of Internal Medicine II, Julius-Maximilian-University of Wuerzburg, Oberduerrbacher Str, 6, D- 97080 Wuerzburg, Germany.
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11
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Takotsubo cardiomyopathy associated with lithium intoxication in bipolar disorder: a case report. J Clin Psychopharmacol 2014; 34:410-1. [PMID: 24699038 DOI: 10.1097/jcp.0b013e3182a95a27] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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12
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Panic attacks and Takotsubo syndrome: how we can prove the connection. Am J Emerg Med 2013; 31:1146-7. [DOI: 10.1016/j.ajem.2013.03.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2013] [Revised: 03/27/2013] [Accepted: 03/27/2013] [Indexed: 11/18/2022] Open
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Takotsubo Cardiomyopathy following a L2-L5 Laminectomy and Fusion In Situ with Bone Morphogenic Protein. Case Rep Orthop 2013; 2013:724960. [PMID: 23585979 PMCID: PMC3622306 DOI: 10.1155/2013/724960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Accepted: 03/03/2013] [Indexed: 11/17/2022] Open
Abstract
Takotsubo cardiomyopathy (TC) is a rare, transient cardiomyopathy, with symptoms mimicking myocardial infarction. It has been reported to typically occur in postmenopausal women and is often triggered by an intense physical or emotional event with stimulation of the sympathetic response; the exact etiology, however, is uncertain. Bone morphogenic protein (BMP) is widely used in spinal fusions and has been associated with numerous perioperative complications. BMP is known to stimulate sympathetic pathways. In this paper, we present the case of a patient with a 7-hour episode of TC after a spinal fusion with bone morphogenic protein. The patient's symptoms resolved and long-term followup has been uneventful. This is the first paper to describe TC in the setting of spine or other major orthopaedic surgery and it suggests another possible area for further investigation in peri-operative events potentially associated with the use of bone morphogenic protein.
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Sidharta SL, Sajeev JK, Nelson AJ, Cooke JC, Worthley MI. Stress-induced cardiomyopathy and possible link to cerebral executive function: a case report. Prim Care Companion CNS Disord 2013; 15:13l01557. [PMID: 24800117 DOI: 10.4088/pcc.13l01557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Affiliation(s)
- Samuel L Sidharta
- Cardiovascular Research Centre, Department of Medicine, University of Adelaide, Adelaide (Drs Sidharta, Nelson, and Worthley); and Eastern Health, Department of Cardiology, Box Hill Hospital, Victoria (Drs Sajeev and Cooke), Australia
| | - Jithin K Sajeev
- Cardiovascular Research Centre, Department of Medicine, University of Adelaide, Adelaide (Drs Sidharta, Nelson, and Worthley); and Eastern Health, Department of Cardiology, Box Hill Hospital, Victoria (Drs Sajeev and Cooke), Australia
| | - Adam J Nelson
- Cardiovascular Research Centre, Department of Medicine, University of Adelaide, Adelaide (Drs Sidharta, Nelson, and Worthley); and Eastern Health, Department of Cardiology, Box Hill Hospital, Victoria (Drs Sajeev and Cooke), Australia
| | - Jennifer C Cooke
- Cardiovascular Research Centre, Department of Medicine, University of Adelaide, Adelaide (Drs Sidharta, Nelson, and Worthley); and Eastern Health, Department of Cardiology, Box Hill Hospital, Victoria (Drs Sajeev and Cooke), Australia
| | - Matthew I Worthley
- Cardiovascular Research Centre, Department of Medicine, University of Adelaide, Adelaide (Drs Sidharta, Nelson, and Worthley); and Eastern Health, Department of Cardiology, Box Hill Hospital, Victoria (Drs Sajeev and Cooke), Australia
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