Update of Takotsubo cardiomyopathy: Present experience and outlook for the future

High Mortality and Complications in Patients Admitted With Takotsubo Cardiomyopathy With More Than Double Mortality in Men Without Improvement in Outcome Over the Years

BACKGROUND

Takotsubo cardiomyopathy continues to be a major cause of mortality and morbidity. The goal of this study was to evaluate the outcome data of patients with Takotsubo cardiomyopathy using a large inpatient database.

METHODS AND RESULTS

We used the Nationwide Inpatient Sample database for our study. We evaluated trends, mortality, and complications of patients admitted with Takotsubo cardiomyopathy from available years 2016 to 2020 in adults >18. A total of 199 890 patients with Takotsubo were found in our database with 83% being female and higher prevalence with age, White race, and highest income. Mortality was high at 6.5% with no significant improvement over the years studied. Furthermore, major complications were substantial. Cardiogenic shock occurred in 6.6%, atrial fibrillation in 20.7%, cardiac arrest in 3.4%, congestive heart failure in 35.9%, and stroke in 5.3%. Mortality was more than double in men in comparison to women (11.2% versus 5.5%).

CONCLUSIONS

Takotsubo cardiomyopathy is associated with high mortality and complications with no improvement in outcome over the 5-year study with higher mortality in men. Further improvement in care is needed to improve outcomes.

Navigating Diagnosis and Management for Takotsubo Syndrome Following Esophageal Cancer Surgery

Takotsubo syndrome (TTS), despite its low incidence, often remains underrecognized or misdiagnosed due to its clinical similarity to acute coronary syndromes and atypical cardiac manifestations in critically ill patients. This applied clinical evidence presents a case of a 72-year-old male patient who developed TTS following esophagectomy. The discussion focuses on the most appropriate diagnostic approach for critically ill patients presenting with chest pain in the intensive care unit (ICU). In addition, it explores the optimal management strategy for TTS in the context of rapid atrial fibrillation and pulmonary complications, emphasizing the importance of timely recognition and targeted intervention.

Thrombin receptor PAR4 cross-activates the tyrosine kinase c-met in atrial cardiomyocytes

Thrombin supports coagulation-independent inflammation via protease-activated receptors (PAR). PAR4 is specifically increased in obese human atria, correlating with NLRP3 inflammasome activation. PAR4-mediated NLRP3 inflammasome activation in atrial cardiomyocytes is not known, nor have signaling partners been identified. Thrombin transactivates the hepatocyte growth factor receptor in some cancer cells, so we examined PAR4/c-met cross-talk in atrial cardiomyocytes and its possible significance in obesity. Cardiomyocytes from right atrial appendages (RAA) of obese patients expressed more PAR1 and PAR4 compared to non-obese. In HL-1 atrial cardiomyocytes, thrombin induced caspase-1 auto-activation and IL-1β maturation; IL-1β secretion was evoked by PAR4-activating peptide (AP), but not PAR1-AP. PAR4-AP additionally increased phosphorylated CaMKII-Thr287, mTOR-Ser2481, and Akt-Ser473 while suppressing AMPK-Thr172 phosphorylation. Total kinase levels were largely unaltered. PAR4AP rapidly increased phosphorylated c-met in HL-1 cells and over time also transcriptionally upregulated c-met. The c-met inhibitor SGX-523 abrogated the effects of PAR4-AP on CaMKII/AKT/mTOR phosphorylation but did not affect PAR4-stimulated IL-1β production. Obese human RAA contained more IL-1β, phospho-c-met, and phospho-mTOR than non-obese RAA; CamKII phosphorylation was not modified. Atria from high-fat diet (HFD) versus chow-fed mice also contained more IL-1β, together with higher myeloperoxidase activity, Acta2 mRNA total and phosphorylated c-met; these increases were blunted in PAR4-/- HFD-fed mice. Thrombin cross-activates c-met via PAR4 in atrial cardiomyocytes. Transactivated c-met contributes partially to PAR4-mediated signaling, but NLRP3 inflammasome activation appears to be largely independent of c-met. Abundance of PAR4 and activated c-met increases with obesity, providing therapeutic targets for management of adiposity-driven AF.

Takotsubo Syndrome in a 47-Year-Old Woman With Repaired Tetralogy of Fallot

Takotsubo syndrome or broken-heart syndrome is a rare form of nonischemic cardiomyopathy characterized by regional systolic dysfunction of the left ventricle without evidence of coronary artery disease or acute plaque rupture. This transient impairment in myocardial contractility leads to symptoms and signs that can mimic a myocardial infarction. We present a case of Takotsubo syndrome in a 47-year-old premenopausal woman with complex congenital heart disease who initially presented with acute onset of shortness of breath and chest tightness after a verbal altercation. Extremely rare cases of Takotsubo syndrome have been described in the congenital heart disease population in premenopausal women. This case emphasizes the need to highlight acquired cardiac disease in patients with adult congenital heart disease as this cohort continues to age.

Role of optical coherence tomography in clinical management of myocardial infarction with nonobstructive coronary arteries

Myocardial infarction without angiographic moderate to severe stenosis (> 50%) and any other related diagnosis on clinical presentation is defined as myocardial infarction with nonobstructive coronary arteries (MINOCA). Common causes of MINOCA working diagnosis includes plaque disruption, spontaneous coronary artery dissection, coronary artery spasm, coronary thromboembolism, Takotsubo cardiomyopathy, and myocarditis. Clinical history, assay of myocardial enzymes, electrocardiogram, echocardiography, coronary angiography, and left ventriculography facilitate the initial diagnosis of MINOCA and reveal the underlying causes, while cardiovascular magnetic resonance and optical coherence tomography (OCT) are used to confirm the diagnosis. Although cardiovascular magnetic resonance is the gold standard noninvasive diagnostic tool for MINOCA, its ability to diagnose the cause and mechanism underlying this condition in the coronary arteries is limited because of its image resolution. Observational studies have demonstrated that OCT can be used to determine the underlying cause of MINOCA by investigating the characteristics of the culprit lesions and to predict the prognosis of the patients. In this article, we review the current diagnostic approach for MINOCA focusing on each imaging tool. Furthermore, we reevaluate the role of OCT in the clinical management of MINOCA. Identifying the cause of MINOCA through OCT might help select optimal and effective drug treatments and improve prognosis.

Fear of Fragility: A Case of Osteoporosis-Triggered Takotsubo Cardiomyopathy

We present a case of a 73-year-old woman with a medical history significant for hyperlipidemia, on pravastatin, who developed Takotsubo cardiomyopathy following a diagnosis of osteoporosis. She presented to the Emergency Department with acute transient left arm pain that resolved spontaneously. Investigations revealed elevated troponin levels, non-specific electrocardiographic changes, no significant coronary artery disease on angiography, and left ventricular systolic dysfunction, findings consistent with Takotsubo cardiomyopathy. Further evaluation revealed that the patient's intense anxiety about her recent osteoporosis diagnosis served as the primary emotional stressor, ultimately triggering Takotsubo cardiomyopathy. Osteoporosis, though not immediately life-threatening, can evoke significant psychological distress due to fears about future fractures, physical limitations, and loss of independence. This highlights the broader impact of chronic disease diagnoses on emotional well-being, particularly in older adults. Management in this case included losartan, carvedilol, and supportive care. Beyond pharmacologic treatment, addressing the patient's emotional health was a priority. Specific psychosocial interventions included in-depth discussion with the patient to alleviate misconceptions about osteoporosis, referrals to counseling services to manage anxiety, and strategies to build coping mechanisms such as mindfulness and relaxation techniques. Providing education on the manageable nature of osteoporosis and available treatments helped reduce the patient's sense of helplessness. These interventions aimed to not only support the patient's immediate recovery but also to minimize the risk of recurrence of stress-induced adverse events such as Takotsubo cardiomyopathy. The case underscores the importance of integrating emotional well-being into routine clinical practice by offering tailored psychosocial support, including clear communication, access to mental health resources, and fostering a collaborative care environment. Holistic care that addresses both physical and psychological health can improve patient outcomes, reduce hospitalizations, and empower patients to manage their conditions more effectively.

Racial disparities in trend, clinical characteristics and outcomes in Takotsubo syndrome

INTRODUCTION

Takotsubo syndrome (TTS) is an acute transient nonischemic cardiomyopathy often characterized by its hallmark feature of left ventricular apical ballooning. The correlation between racial backgrounds and the prognosis of individuals with TTS remains poorly defined. Our study aimed to explore the influence of race on the trends, clinical presentations, and outcomes in patients diagnosed with TTS.

METHODS

We queried the National Inpatient Sample (NIS) database from 2016 to 2020 and identified hospitalizations with TTS. We compared the clinical features and outcomes across three different races - non-Hispanic White (NHW), non-Hispanic Black (NHB), and Hispanic population. The primary outcome was in-hospital mortality.

RESULTS

76,505 weighted hospitalizations for TTS were identified, of which 65,495 (85.6%) were non-Hispanic White, 5,830 (7.6%) were non-Hispanic Black, and 5,180 (6.8%) were Hispanics. After propensity-score matching, NHB patients had higher odds of acute kidney injury (OR: 1.49, 95% CI: 1.21-1.84, p < 0.001) and mechanical ventilation (OR: 1.33, 95% CI: 1.04-1.68, p = 0.02). Hispanic patients had a higher incidence of acute kidney injury requiring dialysis when compared to NHW patients (OR: 2.53, 95% CI: 1.11-5.77, p = 0.027). There was no significant difference in terms of in-hospital mortality between NHB and Hispanic patients when compared to NHW patients. Notably, Hispanic populations experienced a higher mortality rate during the COVID-19 period.

CONCLUSION

Our study suggested significant differences in the outcomes of TTS across different racial groups. Hispanic populations experienced a higher mortality rate with TTS during the COVID-19 era. Further research should emphasize discovering the factors contributing to the observed disparities.

Investigating the effect of cancer medication in the development of Takotsubo cardiomyopathy

Takotsubo cardiomyopathy (TCM) is a cardiac condition that is usually characterized by sudden heart failure (HF) or chest pain that resembles acute coronary syndrome (ACS). It is identified by severe systolic dysfunction of the left ventricle (LV) and can be caused by physical, medical, or emotional stress. The pathophysiological mechanisms leading to TCM have not yet been clearly determined. TCM is a complex condition to diagnose and may go undetected during cancer treatment due to the wide variety of cardiotoxic effects associated with antineoplastic therapies. Consequently, timely identification and effective treatment are critical to enhancing the prognosis. Nevertheless, TCM is a more prevalent condition in oncology than was previously believed; therefore, clinicians who treat cancer patients should consider it in their differential diagnosis. The purpose of this manuscript is to provide physicians with a summary of the available evidence regarding the ramifications of the association between TCM and cancer to aid in improving patient management.

Takotsubo cardiomyopathy associated with free wall rupture and ventricular septal defect: a case report

Takotsubo cardiomyopathy is a rare cardiac presentation. It can be associated with severe complications such as hemodynamically significant ventricular septal defect and cardiac free wall rupture. In cases of mechanical complications, surgical repair is often indicated. Despite best medical and surgical efforts, patients with Takotsubo cardiomyopathy and mechanical complications carry significant mortality risk. Herein, we present an unusual presentation of Takotsubo cardiomyopathy that was associated with a mechanical complication. Although the patient underwent a successful surgical repair, she passed away from multiorgan failure during the postoperative period.

Perioperative management of Takotsubo cardiomyopathy: an overview

Resembling the morphology of Japanese polyp vessels, the classic form of Takotsubo cardiomyopathy is characterized by the presence of systolic dysfunction of the mid-apical portion of the left ventricle associated with basal hyperkinesia. It is believed that this may be due to a higher density of β-adrenergic receptors in the context of the apical myocardium, which could explain the greater sensitivity of the apex to fluctuations in catecholamine levels.The syndrome is precipitated by significant emotional stress or acute severe pathologies, and it is increasingly diagnosed during the perioperative period. Indeed, surgery, induction of general anaesthesia and critical illness represent potential harmful trigger of stress cardiomyopathy. No universally accepted guidelines are currently available, and, generally, the treatment of TTS relies on health care personal experience and/or local practice. In our daily practice, anaesthesiologists can be asked to manage patients with the diagnosis of new-onset Takotsubo before elective surgery or an emergent surgery in a patient with a concomitant stress cardiomyopathy. Even more, stress cardiomyopathy can arise as a complication during the operation.In this paper, we aim to provide an overview of Takotsubo syndrome and to discuss how to manage Takotsubo during surgery and in anaesthesiologic special settings.

Risk of stress cardiomyopathy associated with selective serotonin reuptake inhibitors and serotonin and norepinephrine reuptake inhibitors: a real-world pharmacovigilance analysis

Selective serotonin reuptake inhibitors (SSRIs) and serotonin and norepinephrine reuptake inhibitors (SNRIs) are reported to cause stress cardiomyopathy (SC). This study evaluated the association between SSRI/SNRI use and the occurrence of cardiomyopathy in the publicly available U.S. Food and Drug Administration Adverse Event Reporting System (FAERS) database. Disproportionate analysis and likelihood ratio tests were used to identify risk associated with SSRIs or SNRIs and the incidence of SC, using data from between from 2012 to 2022 acquired from the FAERS database. The study identified 132 individual case safety reports (ICSRs) of SC associated with SSRIs or SNRIs. Venlafaxine (48%) and fluoxetine (27%) were the most common antidepressants of the ICSRs. Approximately 80% of SC cases were reported in females, with individuals aged 45-65 years identified as a high-risk population. Both venlafaxine (ratio-scale information component [RSIC] 2.54, 95% CI 2.06-3.04) and fluoxetine (RSIC 3.20, 95% CI 2.31-4.47) were associated with SC, with likelihood ratio estimates of 3.55 (p = 0.02) for venlafaxine and 4.82 (p = 0.008) for fluoxetine. The median time to cardiomyopathy onset was 20 days, with hospitalization reported in 48.33% of patients. Venlafaxine and fluoxetine were associated with SC risk, particularly in middle-aged women. Caution should be exercised when using SSRIs or SNRIs combined with other serotonergic medications.

From Hyperglycemia to Broken Heart Syndrome: A Case of Diabetic Ketoacidosis-Induced Takotsubo Cardiomyopathy

Diabetic ketoacidosis (DKA) is one of the hyperglycemic emergencies seen in patients with poorly controlled diabetes mellitus. One of the potential cardiovascular complications of this hyperglycemic crisis, not that well documented in the literature, is takotsubo cardiomyopathy (TCM) also known as stress-induced cardiomyopathy or "broken heart syndrome". It is a reversible condition where the heart muscle becomes suddenly weakened and stunned, which is mostly known to develop in patients who have suffered a stressful life event or are undergoing an acute illness. We present an interesting case of a 45-year-old female with a history of poorly controlled diabetes mellitus who presented with significant hyperglycemia and laboratory results concerning DKA. The patient was also complaining of new-onset chest pain on arrival. Further workup revealed elevated troponin, severely reduced ejection fraction, and echocardiographic findings concerning TCM.  The coexistence of DKA and TCM is rare but clinically significant. This case emphasizes the value of clinical vigilance in patients with this hyperglycemic crisis and encourages us to always consider stress-induced cardiomyopathy as a potential complication. Further research is needed to better elucidate the exact mechanisms linking DKA and stress-induced cardiomyopathy. This will help improve outcomes and prevent recurrence in this vulnerable patient population.

Takotsubo Cardiomyopathy Mimicking Multivessel Coronary Artery Disease Following Spinal Surgery

Takotsubo cardiomyopathy (TC), also known as "broken-heart syndrome," is a reversible form of left ventricular dysfunction predominantly affecting post-menopausal women. This case report describes a 62-year-old female who presented with dyspnea and chest pain six weeks after left transforaminal lumbar decompression and fusion surgery. Despite clinical findings suggestive of multivessel coronary artery disease (MVD), angiography revealed normal coronary arteries, confirming TC and stress-induced myocardial infarction. The patient's clinical course highlights the importance of recognizing TC's diverse clinical presentations, especially following surgical interventions, and underscores the need for individualized diagnostic approaches and treatment strategies. The case emphasizes the role of ongoing monitoring and research to understand TC's pathophysiology and optimize therapeutic management.

Systematic review of cardiovascular magnetic resonance imaging T1 and T2 mapping in patients with Takotsubo syndrome

Background

Current imaging advancements quantify the use of cardiovascular magnetic resonance (CMR) derived T1 and T2 tissue characterization as robust indicators for cardiomyopathies, but limited literature exists on its clinical application in Takotsubo syndrome (TTS). This systematic review evaluated the T1 and T2 parametric mapping to delineate the current diagnostic and prognostic CMR imaging outcomes in TTS.

Methods

A comprehensive literature search until October 2023 was performed on ScienceDirect, PubMed, Web of Science, and Cochrane Library by two independent reviewers adhering to the PRISMA framework. The Newcastle-Ottawa Scale (NOS) was used to evaluate the methodological quality of studies.

Results

Out of 198 results, 8 studies were included in this qualitative synthesis, accounting for a total population of 399 subjects (TTS = 201, controls = 175, acute myocarditis = 14, and acute regional myocardial oedema without infarction = 9). Approximately 50.4 % were TTS patients aged between 61 and 73 years, whereof, females (n = 181, 90.0 %) and apical variants (n = 180, 89.6 %) were significantly higher, and emotional stressor (n = 42; 20.9 %) was more prevalent than physical (n = 27; 13.4 %). The NOS identified 62.5 % of studies as moderate and 37.5 % as high quality. Parametric tissue mapping revealed significantly prolonged T1 and T2 relaxation times at 1.5T and 3T respectively in TTS (1053-1164 msec, 1292-1438 msec; and 56-67 msec, 60-90 msec) with higher extracellular volume (ECV) fraction (29-36 %), compared to healthy subjects (944-1211 msec, 1189-1251 msec; and 46-54 msec, 32-68 msec; 23-29 %) and myocarditis (1058 msec, 60 msec). Other significant myocardial abnormalities included increased left ventricular (LV) end-systolic and diastolic volume and reduced global longitudinal strain. Overall, myocardial oedema, altered LV mass and strain, and worse LV systolic function, with higher native T1, T2, and ECV values were consistent.

Conclusions

Future research with substantially larger clinical trials is vital to explore the CMR imaging findings in diverse TTS patient cohorts and correlate the T1 and T2 mapping outcomes with demographic/clinical covariates. CMR is a valuable imaging tool for TTS diagnosis and prognostication. T1 and T2 parametric mapping facilitates the quantification of oedema, inflammation, and myocardial injury in Takotsubo.

A Case of Reverse Takotsubo Cardiomyopathy After Administering a Local Anesthetic Containing Epinephrine

Takotsubo cardiomyopathy (TCM) is a rare syndrome characterized by acute and transient distinctive wall motion abnormalities accompanied by other defined objective findings. There are many variants of TCM, including the reverse (or basal) subtype. While the pathogenesis is not fully understood, both endogenous and exogenous catecholamines have been implicated. This case report describes a 30-year-old active-duty military female who developed reverse TCM immediately following local anesthetic with epinephrine administration in preparation for an elective septorhinoplasty. She developed electrocardiogram (ECG) changes, temporary hemodynamic instability, and cardiac troponin elevation. Transthoracic echocardiogram (TTE) demonstrated significantly reduced systolic and diastolic function, with akinesis of the basal segments and normal wall motion of the apical segments, consistent with a reverse Takotsubo pattern. Coronary computed tomography (CT) angiography showed normal coronary arteries. Repeat TTE was performed two days after the initial event and showed near-complete resolution of the wall motion abnormalities. Fourteen days later, TTE showed normalization of cardiac function. While there is a favorable prognosis for most patients with this diagnosis, there does remain the potential for significant adverse outcomes, risk of recurrence, and a non-negligible mortality rate. It is widely known that physical and emotional triggers can precipitate TCM through the release of catecholamines. This case, in addition to numerous other case reports, provides further documentation and support that exogenous epinephrine administration is also associated with the development of TCM. Clinicians should consider the diagnosis of Takotsubo cardiomyopathy if hemodynamic or ECG changes arise following epinephrine administration.

COVID-19 vaccines-associated Takotsubo cardiomyopathy: A narrative review

Takotsubo cardiomyopathy (TTC) is a severe, acute, reversible, and self-limited cardiac dysfunction. It usually affects postmenopausal women and is mostly triggered by physical or emotional stressors. Following the COVID-19 pandemic, millions of doses of different types of COVID-19 vaccines are being administered globally. There have been reports of different cardiac complications after receiving COVID-19 vaccines. To our knowledge, there have been 16 reported cases of COVID-19 vaccination-associated TTC. In this study, we first provide a brief overview of TTC and then an overview of selected reported TTC cases following COVID-19 vaccinations. It is crucial to highlight that the occurrence of TTC after vaccination does not establish a direct cause-and-effect relationship between immunization and TTC. Further investigations are necessary to examine any potential association between COVID-19 vaccines and the incidence of TTC. Additionally, the benefits of receiving COVID-19 vaccines significantly outweigh the potential risks of developing adverse events.

Takotsubo cardiomyopathy secondary to electroconvulsive therapy in a young adult with Down syndrome regression disorder

We report the case of an 18-year-old woman with Down syndrome (DS) who developed Takotsubo cardiomyopathy (TSC) immediately after the administration of electroconvulsive therapy (ECT), a treatment prescribed for Down syndrome regression disorder resistant to oral psychotropic drugs. TSC is a nonischemic cardiomyopathy related to psychological or physical stress, which has been described as a rare complication of ECT (Kinoshita et al., 2023, Journal of Electroconvulsive Therapy, 39, 185-192). The clinical description of the case is accompanied by a discussion of the peculiarities of the autonomic nervous system in DS.

Current Pharmacology and Modulation of the Purinergic System in Takotsubo Syndrome Triggered by Cytokine Storm

Studies show that with the COVID-19 pandemic, the world's population went through multiple stress and anxiety factors, generating serious psychological problems, in addition, the virus also caused damage and physical stress to those contaminated. In this way, the intense emotional experiences and stressful effects on the body caused by SARS-CoV-2 are capable of triggering the excessive release of catecholamines in the body. Thus, the framework of Takotsubo Syndrome is characterized by myocardial dysfunction as a response of cardiac receptors to the spillage of such hormones in an unregulated way in the human body. The purinergic system plays a central role in this process, as it actively participates in actions responsible for the syndromic cascade, such as the stress generated by the cytokine storm triggered by the virus and the stimulation of deregulated catecholamine release. Therefore, further pharmacological studies on the role of purines in this pathology should be developed in order to avoid the evolution of the syndrome and to modulate its P1 and P2 receptors aiming at developing means of reversing or treating the Takotsubo Syndrome.

Successful treatment of cardiogenic shock due to Takotsubo syndrome with implantation of a temporary microaxial left ventricular assist device in transaxillary approach

OBJECTIVES

Cardiogenic shock (CS) can occur in patients with Takotsubo syndrome (TTS). As TTS has received increasing attention and has been more closely researched, several aspects of the pathogenesis have been identified, particularly that an excessive release of catecholamines plays an important role. Nevertheless, evidence on specific therapy concepts is still lacking. As a result, TTS with severe hemodynamic instability and low cardiac output creates unique challenges, and mechanical circulatory support is needed with as few inotropic drugs as possible.

METHODS

We present a 77-year-old female patient who underwent minimally invasive surgical mitral valve replacement. After an uneventful course, the patient developed acute heart failure eleven days after surgery. Transthoracic echocardiography (TTE) revealed a new onset of TTS. The patient needed left ventricular venting and full haemodynamic flow. We successfully implanted a microaxial left ventricular assist device (Impella 5.5) using the transaxillary approach. The haemodynamic situation stabilised immediately. The patient was weaned and the Impella 5.5 was explanted after five days.

CONCLUSION

We present the first-in-man implantation of a transaxillary Impella 5.5 in a patient with TTS. The patient benefitted from Impella 5.5 therapy with full haemodynamic support and venting of the left ventricle.

[Takotsubo cardiomyopathy associated with abnormal birth of the coronary arteries]

Background

Takotsubo cardiomyopathy (TM) is a form of non-ischemic cardiomyopathy. It is characterized by transient regional systolic dysfunction of the left ventricle that mimics acute myocardial infarction. The main objective of this article is to report the case of a patient with TM associated with abnormal birth of the left coronary trunk.

Clinical case

A 76-year-old woman with typical angina at rest, with an electrocardiogram that showed dynamic changes in the T wave and elevation of biomarkers. Coronary angiography showed epicardial coronary arteries without significant lesions and abnormal birth of the left coronary trunk from the proximal segment of the right coronary artery. The patient progressed favorably, and the transthoracic echocardiogram showed no mobility disorders 3 months after the event.

Conclusions

TM and abnormal birth of the coronary arteries are rare diseases whose simultaneous presentation is extraordinary. The diagnosis of both clinical entities is made by coronary angiography and echocardiogram, and their treatment is similar to that of patients with acute coronary syndrome. Abnormal birth of the left coronary trunk with retroaortic switch reaching the contralateral site has a good clinical prognosis and echocardiographic follow-up should be performed 4 weeks after the onset of the condition.

A Case of Grave's Thyrotoxicosis-Induced Takotsubo Cardiomyopathy Presenting with Cardiac Arrest After Winning the Lottery

Takotsubo syndrome (TTS) is a nonischemic cardiomyopathy with transient apical ballooning of the left ventricle and reduced ejection fraction that can be caused by severe emotional or physical stress, with diverse clinical presentations. This case describes a patient who went into cardiac arrest at a casino after winning the lottery. She was found to have Takotsubo cardiomyopathy, in the setting of uncontrolled hyperthyroidism. This is a very unique case of TTS presenting with cardiac arrest, and is also an uncommon example of TTS triggered by a positive rather than negative emotional life event.

Takotsubo cardiomyopathy prevalence and associated factors in patients presenting with a clinical picture of acute myocardial infarction in Palestine

BACKGROUND

Takotsubo cardiomyopathy (TC) is a transient cardiac syndrome that manifests with symptoms resembling acute myocardial infarction (MI). It is characterized by temporary wall-motion abnormalities predominantly affecting the apical and mid-portions of the left ventricle, despite the absence of significant obstructive coronary disease. TC poses diagnostic challenges due to its resemblance to ST-segment elevation myocardial infarction. Our study aimed to determine the prevalence of TC and identify the factors associated with its occurrence in patients presenting with acute MI in Palestine.

RESULTS

A retrospective analysis was conducted on a cohort of patients diagnosed with TC at Al-Makassed hospital. Women accounted for 90.7% of TC cases (95% CI 88.2-93.2%). The mean age of affected individuals ranged from 62 to 76 years. The most common presenting symptoms were chest pain (83.4%, 95% CI 80.0-86.7%) and dyspnea (20.4%, 95% CI 16.3-24.5%), often following an emotionally or physically stressful event. Electrocardiography (ECG) on admission indicated ST-segment elevations in 71.1% of cases (95% CI 67.2-75.1%), accompanied by mild elevations of Troponins in 85.0% of cases (95% CI 80.8-89.1%). Despite the initial severity, left ventricular ejection fraction (LVEF) improved from 20-49.9 to 59-76% within a mean time of 7-37 days. The in-hospital mortality rate was 1.7% (95% CI 0.5-2.8%), with complete recovery observed in 95.9% of cases (95% CI 93.8-98.1%) and rare recurrence. The underlying etiology is believed to involve exaggerated sympathetic stimulation.

CONCLUSIONS

TC should be considered as a significant differential diagnosis in acute coronary syndrome (ACS) cases, particularly among postmenopausal women with a preceding stressful event. Our study provides insights into the prevalence and characteristics of TC in the Palestinian population. While stress has been recognized as a potential trigger for TC, further research is needed to explore if there are specific associations between occupation and other unique stressors in the Palestinian context and the prevalence of TC. The study's results can raise awareness among healthcare professionals in Palestine about the prevalence and characteristics of TC in their patient population.

Epidemiology, Pathophysiology, Diagnosis, and Principles of Management of Takotsubo Cardiomyopathy: A Review

Takotsubo cardiomyopathy, also known as stress-induced cardiomyopathy, is a reversible syndrome commonly found among patients presenting for acute coronary syndromes, especially women. With the COVID-19 pandemic, the incidence of takotsubo cardiomyopathy was dramatically increased. However, this clinical cardiac entity remains underdiagnosed, largely due to the interplay with acute coronary syndrome. The pathophysiology of takotsubo cardiomyopathy is miscellaneous, including coronary vasospasm, microcirculatory dysfunction, catecholamine surge, and sympathetic overdrive. Diagnosing takotsubo cardiomyopathy requires a high index of clinical suspicion and multimodality tests. To date, there are no guidelines for the management of takotsubo cardiomyopathy. Thus, available data are derived from case series, retrospective analyses, and experts' opinions. Heart failure medicines were investigated in takotsubo cardiomyopathy patients. Evidence supports the benefits of angiotensin-converting enzyme inhibitors and angiotensin receptors blockers use on mortality and recurrence rates, while results from use of beta-blockers are controversial. In complicated cases, inotropes are preferred over vasopressors, except in the presence of left ventricular outflow tract obstruction, in which medical therapy is limited to fluids administration and beta-blockers. Use of oral vitamin K antagonist can benefit patients at high thrombo-embolic risk for up to 3 months. Mechanical supports are reserved for refractory hemodynamically unstable cases. This review aims to provide an update on the epidemiology, diagnosis, and outcomes of takotsubo cardiomyopathy, and an extended discussion on the management of complicated and non-complicated cases.

Role of Cardiac Magnetic Resonance Imaging in the Evaluation of MINOCA

Myocardial infarction with Non Obstructive Coronary Arteries (MINOCA) is defined by patients presenting with signs and symptoms similar to acute myocardial infarction, but are found to have non-obstructive coronary arteries angiography. What was once considered a benign phenomenon, MINOCA has been proven to carry with it significant morbidity and worse mortality when compared to the general population. As the awareness for MINOCA has increased, guidelines have focused on this unique situation. Cardiac magnetic resonance (CMR) has proven to be an essential first step in the diagnosis of patients with suspected MINOCA. CMR has also been shown to be crucial when differentiating between MINOCA like presentations such as myocarditis, takotsubo and other forms of cardiomyopathy. The following review focuses on demographics of patients with MINOCA, their unique clinical presentation as well as the role of CMR in the evaluation of MINOCA.

Takotsubo syndrome after a minimally invasive tooth extraction in a patient without dental phobia: A case report

Takotsubo syndrome (TTS) is a rare, stress-induced acute cardiac disorder. Its precipitating factors include emotionally or physically stressful events and exogenous and endogenous adrenaline. In this report, we describe a case of atypical TTS in a 73-year-old woman who reported no dental fear and required acute cardiac care in an outpatient setting. She underwent routine extraction of an upper left premolar under local anesthesia. She reported heart palpitations after the injection, and the procedure was completed in 15 min. After presenting symptoms of sweating, pale skin, vomiting, low blood pressure, and ST-segment elevation, cardiologists ordered echocardiography, coronary angiography, and ventriculography. Upon receiving a TTS diagnosis, the patient was hospitalized and administered an intra-aortic balloon pump and beta-blocker. Her symptoms resolved, and she was discharged with no sequelae. We found no precipitating factors in the progression of TTS in this case, which suggests that TTS can develop in the absence of precipitating factors. All general dentists and oral surgeons should recognize the possible risk of TTS, even during minimally invasive dental procedures, such as routine extractions in patients without dental phobia.

The Heart Is at Risk: Understanding Stroke-Heart-Brain Interactions with Focus on Neurogenic Stress Cardiomyopathy-A Review

In recent years, it has been convincingly demonstrated that acute brain injury may cause severe cardiac complications-such as neurogenic stress cardiomyopathy (NSC), a specific form of takotsubo cardiomyopathy. The pathophysiology of these brain-heart interactions is complex and involves sympathetic hyperactivity, activation of the hypothalamic-pituitary-adrenal axis, as well as immune and inflammatory pathways. There have been great strides in our understanding of the axis from the brain to the heart in patients with isolated acute brain injury and more specifically in patients with stroke. On the other hand, in patients with NSC, research has mainly focused on hemodynamic dysfunction due to arrhythmias, regional wall motion abnormality, or left ventricular hypokinesia that leads to impaired cerebral perfusion pressure. Comparatively little is known about the underlying secondary and delayed cerebral complications. The aim of the present review is to describe the stroke-heart-brain axis and highlight the main pathophysiological mechanisms leading to secondary and delayed cerebral injury in patients with concurrent hemorrhagic or ischemic stroke and NSC as well as to identify further areas of research that could potentially improve outcomes in this specific patient population.