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Gonuguntla K, Thyagaturu H, Shaik A, Roma N, Thangjui S, Alruwaili W, Patel KN, Nassar S, Valand H, Cheema MS, Jain B, Ahmed A, Raina S, Ditah CM, Sattar Y. Takotsubo cardiomyopathy and psychiatric illness- insight from National Inpatient Sample (NIS) and National Re-admission Database (NRD) 2016 to 2018. Curr Probl Cardiol 2024; 49:102429. [PMID: 38331372 DOI: 10.1016/j.cpcardiol.2024.102429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 01/29/2024] [Indexed: 02/10/2024]
Abstract
BACKGROUND Emotional stress is a common precipitating cause of takotsubo cardiomyopathy (TC). Preexisting psychiatric disorder (PD) was linked to worsening outcomes in patients with TC1,2. However, there is limited data in literature to support this. This study aimed to determine the differences in outcomes in TC patients with and without PD. METHODS We identified all patients with a diagnosis of TC using the National Inpatient Sample (NIS) and the National Readmission Database (NRD) data from 2016 to 2018. The patients were separated into TC with PD group and TC without PD group. Multiple variable logistic regression was then performed. RESULTS Using NIS 2016-2018, we identified 23,220 patients with TC, and 43.11% had PD. The mean age was 66.73 ± 12.74 years, with 90.42% being female sex. The TC with PD group had a higher 30-readmission rate 1.25 (95% CI:1.06-1.47), Cardiogenic shock [aOR = 7.3 (95%CI 3.97-13.6), Mechanical ventilation [aOR = 4.2 (95%CI 2.4-7.5), Cardiac arrest [aOR = 2.6 (95%CI 1.1-6.3), than TC without PD group. CONCLUSION Psychiatric disorders were found in up to 43% of patients with TC. The concomitant PD in TC patients was not associated with increased mortality, AKI, but had higher rates of cardiogenic shock, use of mechanical ventilation and cardiac arrest. The TC group with PD was also associated with increased 30-day readmission, LOS and total charges compared to TC patients without PD.
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Affiliation(s)
- Karthik Gonuguntla
- Department of Cardiovascular Medicine, Heart and Vascular Institute, West Virginia University, West Virginia, USA
| | - Harshith Thyagaturu
- Department of Cardiovascular Medicine, Heart and Vascular Institute, West Virginia University, West Virginia, USA
| | - Ayesha Shaik
- Department of Cardiovascular Medicine, Hartford Hospital, Hartford, CT, USA
| | - Nicholas Roma
- Department of Internal Medicine, St. Luke's University Health Network, Bethlehem, PA, USA
| | | | - Waleed Alruwaili
- Department of Internal Medicine, West Virginia University, West Virginia, USA
| | - Kunal N Patel
- Department of Cardiovascular Medicine, Heart and Vascular Institute, West Virginia University, West Virginia, USA
| | - Sameh Nassar
- Department of Cardiovascular Medicine, Heart and Vascular Institute, West Virginia University, West Virginia, USA
| | - Hardik Valand
- Department of Internal Medicine, Trinity Health System, Steubenville, OH, USA
| | | | - Bobby Jain
- Department of Psychiatry, Texas Tech University, TX, USA
| | - Amna Ahmed
- Allama Iqbal Medical College, Lahore, Pakistan
| | | | - Chobufo Muchi Ditah
- Department of Cardiovascular Medicine, Heart and Vascular Institute, West Virginia University, West Virginia, USA
| | - Yasar Sattar
- Department of Cardiovascular Medicine, Heart and Vascular Institute, West Virginia University, West Virginia, USA.
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Elkattawy O, Shacker M, Alabed S, Elias D, Elkattawy S, Mohamed O, Mansour C, Hamlet C, Emara S, Shamoon F. Ventricular Tachycardia in Patients With Takotsubo Cardiomyopathy: Prevalence, Predictors, and Associated In-Hospital Adverse Events. Cureus 2024; 16:e57724. [PMID: 38711723 PMCID: PMC11073765 DOI: 10.7759/cureus.57724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2024] [Indexed: 05/08/2024] Open
Abstract
Introduction The purpose of this study was to determine the prevalence of ventricular tachycardia (VT) among patients admitted with takotsubo cardiomyopathy (TCM) as well as to analyze the predictors of VT and the predictors of mortality among patients admitted with TCM. Methods Data were obtained from the National Inpatient Sample (NIS) database from January 2016 to December 2019. Patients with a primary diagnosis of TCM were selected using ICD-10 code I51.81. Subsequently, the study population was divided into patients who developed VT vs. patients who did not develop this complication. We then used multivariate logistic regression to assess the predictors of VT in our patient cohort as well as the predictors of mortality among patients admitted with TCM. Results Of 40114 patients with TCM, 1923 developed VT (4.8%) during their hospital stay. Predictors of VT include atrial fibrillation (AF) (adjusted odds ratio (aOR): 1.592; 95% confidence interval (CI): 0.00-1.424; p=0.001), congestive heart failure (aOR: 1.451; 95% CI: 1.307-1.610; p=0.001), coagulopathy (aOR: 1.436; 95% CI: 1.150-1.793; p=0.001), and patients who self-identify in the race category as Other (aOR: 1.427; 95% CI: 1.086-1.875; p=0.011). Female sex was found to be protective against VT (aOR: 0.587; 95% CI: 0.526-0.656; p=0.001). Predictors of mortality among patients admitted with TCM include, among other factors, age (aOR: 1.014; 95% CI: 1.011-1.018; p=0.001), Asian or Pacific Islander race (aOR: 1.533; 95% CI: 1.197-1.964; p=0.001), Black race (aOR: 1.242; 95% CI: 1.062-1.452; p=0.007), VT (aOR: 1.754; 95% CI: 1.505-2.045; p=0.001), and AF (aOR: 1.441; 95% CI: 1.301-1.597; p=0.001). Some comorbidities that were protective against mortality in TCM include tobacco use disorder (aOR: 0.558; 95% CI: 0.255-0.925; p=0.028) and obstructive sleep apnea (aOR: 0.803; 95% CI: 0.651-0.990; p=0.028). The female sex was found to be protective against mortality (aOR: 0.532; 95% CI: 0.480-0.590; p=0.001). Conclusion In a large cohort of women admitted with TCM, we found the prevalence of VT to be 4.8%. Predictors of VT included conditions such as AF and congestive heart failure. The female sex was found to be protective against VT and protective against mortality among patients admitted with TCM.
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Affiliation(s)
- Omar Elkattawy
- Department of Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Mabad Shacker
- Department of Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Sedra Alabed
- Department of Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Daniel Elias
- Department of Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Sherif Elkattawy
- Department of Cardiology, St. Joseph's University Medical Center, Paterson, USA
| | - Omar Mohamed
- Department of Medicine, Saint Barnabas Medical Center, Livingston, USA
| | - Charlene Mansour
- Department of Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Casey Hamlet
- Department of Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Salma Emara
- Department of Internal Medicine, Rowan University School of Osteopathic Medicine, Stratford, USA
| | - Fayez Shamoon
- Department of Cardiology, St. Joseph's University Medical Center, Paterson, USA
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Shadmand M, Lautze J, Md AM. Takotsubo pathophysiology and complications: what we know and what we do not know. Heart Fail Rev 2024; 29:497-510. [PMID: 38150119 DOI: 10.1007/s10741-023-10381-8] [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] [Accepted: 12/20/2023] [Indexed: 12/28/2023]
Abstract
Takotsubo cardiomyopathy or stress cardiomyopathy (SCM), was first described in 1990 and initially, it was thought to be only associated with short-term complications and mortality with a benign long-term prognosis comparable to a healthy population. However recent investigations have proven otherwise and have shown SCM patients might have comparable long-term morbidity and mortality to ST-elevation myocardial infarction (STEMI) patients. Many emotional, or physical stressors can trigger SCM, and have been able to describe an interplay of neurohormonal and inflammatory mechanisms as the pathophysiology of this disease. Additionally, given the significantly higher prevalence of SCM in post-menopausal women, estrogen levels have been thought to play a role in the pathogenesis of this disease. Furthermore, there is an elusive disparity in prognosis depending upon different triggers. Currently, many questions remain unanswered regarding the long-term management of these patients to reduce morbidity, mortality, and improve quality of life, such as the need for long-term anticoagulation. In this paper, we review the findings of most recent published investigations regarding etiologies, pathophysiology, diagnostic criteria, prognosis, short-term and in more detail, long-term complications of SCM. Finally, we will discuss what future research is needed to learn more about this disease to improve the long-term prognosis, even though as of now, data for long-term management is still lacking.
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Affiliation(s)
- Mehdi Shadmand
- Internal Medicine, Wright State University, 128 E. Apple St., 2Nd Floor, Dayton, OH, 45409, USA.
| | - Jacob Lautze
- Internal Medicine, Wright State University, 128 E. Apple St., 2Nd Floor, Dayton, OH, 45409, USA
| | - Ali Mehdirad Md
- Internal Medicine, Wright State University, 128 E. Apple St., 2Nd Floor, Dayton, OH, 45409, USA
- Medical Center, Internal Medicine, Veteran Affairs (VA), 4100 W Third St., Dayton, OH, 45428, USA
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Dai Q, Li P, Bose A, Cai P, Jin L, Pan S, Dixon RAF, Laidlaw D, Liu Q. Association of atrial fibrillation burden with in-hospital outcomes in patients with Takotsubo cardiomyopathy. Am J Med Sci 2023; 365:345-352. [PMID: 35793734 DOI: 10.1016/j.amjms.2022.06.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 04/15/2022] [Accepted: 06/28/2022] [Indexed: 01/03/2023]
Abstract
BACKGROUND The effects of atrial fibrillation (AF) and its burden on in-hospital mortality in patients with Takotsubo cardiomyopathy (TCM) are unclear. Here, we examined the effect of AF and paroxysmal AF on in-hospital outcomes in patients with TCM. METHODS We used ICD-10 codes to retrospectively identify patients with a primary diagnosis of TCM in the National Inpatient Sample database 2016-2018. We compared in-hospital outcomes in TCM patients with and without AF before and after propensity score matching. The effect of AF burden on outcomes was assessed in patients with paroxysmal AF and no AF. RESULTS Of the 4,733 patients with a primary diagnosis of TCM, 650 (13.7%) had AF, and 4,083 (86.3%) did not. Of TCM patients with AF, 368 (56.6%) had paroxysmal AF. In-hospital mortality was higher in patients with AF before (3.4% vs 1.2%, P < 0.001) and after propensity matching (3.4% vs 1.7%, P = 0.021) but did not differ between the paroxysmal AF and the no AF groups (P = 0.205). In the matched cohorts, both AF and paroxysmal AF groups were associated with a higher rate of cardiogenic shock (AF, P < 0.001; paroxysmal AF, P < 0.001), ventricular arrhythmia (AF, P = 0.002; paroxysmal AF, P = 0.02), acute kidney injury (AF, P = 0.007; paroxysmal AF, P = 0.008), and acute respiratory failure (AF, P < 0.001; paroxysmal AF, P < 0.001) compared with the no AF group. CONCLUSIONS Although AF was associated with increased in-hospital mortality, paroxysmal AF did not affect in-hospital mortality, suggesting a higher AF burden is associated with worse clinical outcome in patients with TCM.
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Affiliation(s)
- Qiying Dai
- Division of Cardiology, Saint Vincent Hospital, Worcester, MA, USA.
| | - Pengyang Li
- Division of Cardiology, Pauley Heart Center, Virginia Commonwealth University, Richmond, VA, USA
| | - Abhishek Bose
- Division of Cardiology, Saint Vincent Hospital, Worcester, MA, USA
| | - Peng Cai
- Department of Mathematical Sciences, Worcester Polytechnic Institute, Worcester, MA, USA
| | - Ling Jin
- Department of Medicine, Metrowest Medical Center, Framingham, MA, USA
| | - Su Pan
- Molecular Cardiology Research, Texas Heart Institute, Houston, TX, USA
| | - Richard A F Dixon
- Molecular Cardiology Research, Texas Heart Institute, Houston, TX, USA
| | - Douglas Laidlaw
- Division of Cardiology, Saint Vincent Hospital, Worcester, MA, USA
| | - Qi Liu
- Molecular Cardiology Research, Texas Heart Institute, Houston, TX, USA
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Sethi Y, Murli H, Kaiwan O, Vora V, Agarwal P, Chopra H, Padda I, Kanithi M, Popoviciu MS, Cavalu S. Broken Heart Syndrome: Evolving Molecular Mechanisms and Principles of Management. J Clin Med 2022; 12:jcm12010125. [PMID: 36614928 PMCID: PMC9821117 DOI: 10.3390/jcm12010125] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
Broken Heart Syndrome, also known as Takotsubo Syndrome (TS), is sudden and transient dysfunction of the left and/or right ventricle which often mimics Acute Coronary Syndrome (ACS). Japan was the first country to describe this syndrome in the 1990s, and since then it has received a lot of attention from researchers all around the world. Although TS was once thought to be a harmless condition, recent evidence suggests that it may be linked to serious complications and mortality on par with Acute Coronary Syndrome (ACS). The understanding of TS has evolved over the past few years. However, its exact etiology is still poorly understood. It can be classified into two main types: Primary and Secondary TS. Primary TS occurs when the symptoms of myocardial damage, which is typically preceded by emotional stress, are the reason for hospitalization. Secondary TS is seen in patients hospitalized for some other medical, surgical, obstetric, anesthetic, or psychiatric conditions, and the dysfunction develops as a secondary complication due to the activation of the sympathetic nervous system and the release of catecholamines. The etiopathogenesis is now proposed to include adrenergic hormones/stress, decreased estrogen levels, altered microcirculation, endothelial dysfunction, altered inflammatory response via cardiac macrophages, and disturbances in the brain-heart axis. The role of genetics in disease progression is becoming the focus of several upcoming studies. This review focuses on potential pathophysiological mechanisms for reversible myocardial dysfunction observed in TS, and comprehensively describes its epidemiology, clinical presentation, novel diagnostic biomarkers, and evolving principles of management. We advocate for more research into molecular mechanisms and promote the application of current evidence for precise individualized treatment.
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Affiliation(s)
- Yashendra Sethi
- PearResearch, Dehradun 248001, India
- Department of Medicine, Government Doon Medical College, Dehradun 248001, India
- Correspondence: (Y.S.); (M.S.P.)
| | - Hamsa Murli
- PearResearch, Dehradun 248001, India
- Department of Medicine, Lokmanya Tilak Municipal Medical College, Mumbai 400022, India
| | - Oroshay Kaiwan
- PearResearch, Dehradun 248001, India
- Department of Medicine, Northeast Ohio Medical University, Rootstown, OH 44272, USA
| | - Vidhi Vora
- PearResearch, Dehradun 248001, India
- Department of Medicine, Lokmanya Tilak Municipal Medical College, Mumbai 400022, India
| | - Pratik Agarwal
- PearResearch, Dehradun 248001, India
- Department of Medicine, Lokmanya Tilak Municipal Medical College, Mumbai 400022, India
| | - Hitesh Chopra
- College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India
| | - Inderbir Padda
- Richmond University Medical Center, Staten Island, NY 10310, USA
| | - Manasa Kanithi
- College of Osteopathic Medicine, Michigan State University, East Lansing, MI 48824, USA
| | - Mihaela Simona Popoviciu
- Faculty of Medicine and Pharmacy, University of Oradea, P-ta 1 Decembrie 10, 410087 Oradea, Romania
- Correspondence: (Y.S.); (M.S.P.)
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, P-ta 1 Decembrie 10, 410087 Oradea, Romania
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Koh Y, Voskoboinik A, Neil C. Arrhythmias and Their Electrophysiological Mechanisms in Takotsubo Syndrome: A Narrative Review. Heart Lung Circ 2022; 31:1075-1084. [PMID: 35562239 DOI: 10.1016/j.hlc.2022.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/19/2022] [Accepted: 03/30/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Takotsubo syndrome (TTS), an acute and usually reversible condition, is associated with both tachy- and bradyarrhythmias. Such arrhythmias can be life-threatening, e.g. ventricular tachycardia and fibrillation, and associated with cardiac arrest. Others, such as atrioventricular block, persist and require long-term device therapy. In this narrative review, we aim to provide a summary of the current literature on arrhythmias in TTS and their clinical sequelae. METHODS PubMed and Medline databases were searched with various permutations of TTS, arrhythmias and beta-adrenoceptors. After application of exclusion criteria and review, 84 articles were included. RESULTS Although there are no specific electrocardiograph (ECG) findings in TTS to differentiate it from ST-elevation myocardial infarction, suggestive patterns include small QRS amplitude, ST segment elevation without reciprocal ST depression and prolonged QT interval. Atrial tachyarrhythmias (incidence of 5-15%) are associated with a more unwell patient cohort. Ventricular arrhythmias (incidence 4-14%) are often associated with prolonged QT interval and are a cause of sudden death in TTS. Bradyarrhythmias are less common (incidence 1.3-2.5%), but have been reported with TTS, and usually persist beyond the acute phase. CONCLUSIONS Takotsubo syndrome, though considered primarily a disease of the myocardium, carries multiple arrhythmic manifestations that affect short- and long-term prognosis. The management of such arrhythmias represents a constantly evolving area of research.
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Affiliation(s)
- Y Koh
- Department of Cardiology, Western Health, Melbourne, Vic, Australia.
| | - A Voskoboinik
- Department of Cardiology, Western Health, Melbourne, Vic, Australia
| | - C Neil
- Department of Cardiology, Western Health, Melbourne, Vic, Australia
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7
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Bairashevskaia AV, Belogubova SY, Kondratiuk MR, Rudnova DS, Sologova SS, Tereshkina OI, Avakyan EI. Update of Takotsubo cardiomyopathy: Present experience and outlook for the future. IJC HEART & VASCULATURE 2022; 39:100990. [PMID: 35281752 PMCID: PMC8913320 DOI: 10.1016/j.ijcha.2022.100990] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/24/2022] [Accepted: 03/01/2022] [Indexed: 11/21/2022]
Abstract
Takotsubo cardiomyopathy (TTS) has become a recognised clinical entity since the Japanese scientist Sato first described it in 1990. Despite an increasing number of confirmed cases, especially during the COVID-19 pandemic, its pathophysiology remains incompletely understood, and decision-making differs in the diagnosis and treatment. In addition, it is not evident whether a significant increase in TTS is due to better understanding among practitioners and widespread access to coronary angiography, or if it is a reflection of an actual increase in incidence. We analysed a series of international research studies from 1990 to 2021. Beyond epidemiology and clinical presentation, we evaluated and summarised fundamental knowledge about various predisposing factors, with particular attention to the iatrogenic impact of certain drugs, namely antidepressants, chemotherapy, and antiarrhythmics. Furthermore, we highlighted the main pathophysiological theories to date. In addition, based on published studies and clinical cases, we investigated the role of numerous diagnostic approaches in the differential diagnosis of TTS and identified predictors of TTS complications, such as cardiogenic shock, ventricular fibrillation, and left ventricular thrombi. Accordingly, we sought to propose a diagnostic algorithm and further treatment management of TTS under the presence of possible complications to help practitioners make more informed decisions, as the initial presentation continues to pose a challenge due to its close similarity to acute coronary syndrome with ST-elevation. In conclusion, this article examines Takotsubo cardiomyopathy from different perspectives and, along with future systematic reviews and meta-analyses, can be of particular interest to practising cardiologists and researchers in developing clinical guidelines.
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Affiliation(s)
- Anastasiia V. Bairashevskaia
- Department of Paediatrics, Institute of Child’s Health, Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia
| | - Sofiya Y. Belogubova
- Department of Faculty Therapy, Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
- AMEE International Networking Centre, Sechenov First Moscow State Medical University (Sechenov University), 123242 Moscow, Russia
| | - Mikhail R. Kondratiuk
- Department of Faculty Therapy, Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
| | - Daria S. Rudnova
- International School “Medicine of the Future”, Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
| | - Susanna S. Sologova
- Department of Pharmacology, Institute of Pharmacy, Sechenov First Moscow State Medical University (Sechenov University), 119571 Moscow, Russia
| | - Olga I. Tereshkina
- Department of Pharmacology, Institute of Pharmacy, Sechenov First Moscow State Medical University (Sechenov University), 119571 Moscow, Russia
| | - Esma I. Avakyan
- Department of Faculty Therapy, Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
- AMEE International Networking Centre, Sechenov First Moscow State Medical University (Sechenov University), 123242 Moscow, Russia
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8
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Tako-tsubo syndrome and atrial fibrillation. New trigger for cardiomyopathy. A clinical case. COR ET VASA 2022. [DOI: 10.33678/cor.2021.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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El-Battrawy I, Cammann VL, Kato K, Szawan KA, Di Vece D, Rossi A, Wischnewsky M, Hermes-Laufer J, Gili S, Citro R, Bossone E, Neuhaus M, Franke J, Meder B, Jaguszewski M, Noutsias M, Knorr M, Heiner S, D'Ascenzo F, Dichtl W, Burgdorf C, Kherad B, Tschöpe C, Sarcon A, Shinbane J, Rajan L, Michels G, Pfister R, Cuneo A, Jacobshagen C, Karakas M, Koenig W, Pott A, Meyer P, David Arroja J, Banning A, Cuculi F, Kobza R, Fischer TA, Vasankari T, Airaksinen KEJ, Napp LC, Budnik M, Dworakowski R, MacCarthy P, Kaiser C, Osswald S, Galiuto L, Chan C, Bridgman P, Beug D, Delmas C, Lairez O, Gilyarova E, Shilova A, Gilyarov M, Kozel M, Tousek P, Winchester DE, Galuszka J, Ukena C, Poglajen G, Carrilho-Ferreira P, Hauck C, Paolini C, Bilato C, Kobayashi Y, Prasad A, Rihal CS, Liu K, Schulze PC, Bianco M, Jörg L, Rickli H, Pestana G, Nguyen TH, Böhm M, Maier LS, Pinto FJ, Widimský P, Felix SB, Opolski G, Braun-Dullaeus RC, Rottbauer W, Hasenfuß G, Pieske BM, Schunkert H, Thiele H, Bauersachs J, Katus HA, Horowitz JD, Di Mario C, Münzel T, Crea F, Bax JJ, Lüscher TF, Ruschitzka F, Duru F, Borggrefe M, Ghadri JR, Akin I, Templin C. Impact of Atrial Fibrillation on Outcome in Takotsubo Syndrome: Data From the International Takotsubo Registry. J Am Heart Assoc 2021; 10:e014059. [PMID: 34315238 PMCID: PMC8475688 DOI: 10.1161/jaha.119.014059] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Background Atrial fibrillation (AF) is a major risk factor for mortality. The prevalence, clinical correlates, and prognostic impact of AF in Takotsubo syndrome (TTS) have not yet been investigated in a large patient cohort. This study aimed to investigate the prevalence, clinical correlates, and prognostic impact of AF in patients with TTS. Methods and Results Patients with TTS were enrolled from the International Takotsubo Registry, which is a multinational network with 26 participating centers in Europe and the United States. Patients were dichotomized according to the presence or absence of AF at the time of admission. Of 1584 patients with TTS, 112 (7.1%) had AF. The mean age was higher (P<0.001), and there were fewer women (P=0.046) in the AF than in the non‐AF group. Left ventricular ejection fraction was significantly lower (P=0.001), and cardiogenic shock was more often observed (P<0.001) in the AF group. Both in‐hospital (P<0.001) and long‐term mortality (P<0.001) were higher in the AF group. Multivariable Cox regression analysis revealed that AF was independently associated with higher long‐term mortality (hazard ratio, 2.31; 95% CI, 1.50–3.55; P<0.001). Among patients with AF on admission, 42% had no known history of AF before the acute TTS event, and such patients had comparable in‐hospital and long‐term outcomes compared with those with a history of AF. Conclusions In patients presenting with TTS, AF on admission is significantly associated with increased in‐hospital and long‐term mortality rates. Whether antiarrhythmics and/or cardioversion are beneficial in TTS with AF should thus be tested in a future trial. Registration URL: https://www.clinicaltrials.gov; Unique identifier: NCT01947621.
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Affiliation(s)
- Ibrahim El-Battrawy
- First Department of Medicine Faculty of Medicine University Medical Centre Mannheim University of Heidelberg Mannheim Germany.,German Center for Cardiovascular Researchpartner site Heidelberg-Mannheim Mannheim Germany
| | - Victoria L Cammann
- Department of Cardiology University Heart CenterUniversity Hospital Zurich Zurich Switzerland
| | - Ken Kato
- Department of Cardiology University Heart CenterUniversity Hospital Zurich Zurich Switzerland
| | - Konrad A Szawan
- Department of Cardiology University Heart CenterUniversity Hospital Zurich Zurich Switzerland
| | - Davide Di Vece
- Department of Cardiology University Heart CenterUniversity Hospital Zurich Zurich Switzerland
| | - Aurelio Rossi
- Department of Cardiology University Heart CenterUniversity Hospital Zurich Zurich Switzerland
| | | | - Julia Hermes-Laufer
- Department of Cardiology University Heart CenterUniversity Hospital Zurich Zurich Switzerland
| | | | - Rodolfo Citro
- Heart Department University Hospital "San Giovanni di Dio e Ruggi d'Aragona" Salerno Italy
| | - Eduardo Bossone
- Division of Cardiology "Antonio Cardarelli" Hospital Naples Italy
| | - Michael Neuhaus
- Department of Cardiology Kantonsspital Frauenfeld Frauenfeld Switzerland
| | - Jennifer Franke
- Department of Cardiology Heidelberg University Hospital Heidelberg Germany
| | - Benjamin Meder
- Department of Cardiology Heidelberg University Hospital Heidelberg Germany
| | - Milosz Jaguszewski
- First Department of Cardiology Medical University of Gdansk Gdansk Poland
| | - Michel Noutsias
- Mid-German Heart Center Department of Internal Medicine III Division of Cardiology, Angiology and Intensive Medical Care University Hospital HalleMartin-Luther-University Halle-Wittenberg Halle (Saale) Germany
| | - Maike Knorr
- Center for Cardiology Cardiology 1 University Medical Center Mainz Mainz Germany
| | - Susanne Heiner
- Center for Cardiology Cardiology 1 University Medical Center Mainz Mainz Germany
| | - Fabrizio D'Ascenzo
- Division of Cardiology Department of Medical Sciences AOU Città della Salute e della ScienzaUniversity of Turin Turin Italy
| | - Wolfgang Dichtl
- University Hospital for Internal Medicine III (Cardiology and Angiology) Medical University Innsbruck Innsbruck Austria
| | | | - Behrouz Kherad
- Department of Cardiology CharitéCampus Rudolf Virchow Berlin Germany
| | - Carsten Tschöpe
- Department of Cardiology CharitéCampus Rudolf Virchow Berlin Germany
| | - Annahita Sarcon
- Section of Cardiac Electrophysiology Department of Medicine University of California-San Francisco San Francisco CA
| | - Jerold Shinbane
- Keck School of Medicine University of Southern California Los Angeles CA
| | | | - Guido Michels
- Department of Internal Medicine III Heart Center University of Cologne Cologne Germany
| | - Roman Pfister
- Department of Internal Medicine III Heart Center University of Cologne Cologne Germany
| | | | - Claudius Jacobshagen
- Department of Cardiology Intensive Care Medicine and Angiology Vincentius-Diakonissen-Hospital Karlsruhe Germany
| | - Mahir Karakas
- Department of General and Interventional Cardiology University Heart Center Hamburg Hamburg Germany.,German Centre for Cardiovascular Research partner site Hamburg/Kiel/Luebeck Hamburg Germany
| | - Wolfgang Koenig
- Deutsches Herzzentrum MünchenTechnische Universität München Munich Germany.,German Centre for Cardiovascular Research partner site Munich Heart Alliance Munich Germany
| | - Alexander Pott
- Department of Internal Medicine II-Cardiology University of UlmMedical Center Ulm Germany
| | - Philippe Meyer
- Service de Cardiologie Hôpitaux Universitaires de Genève Geneva Switzerland
| | - Jose David Arroja
- Service de Cardiologie Hôpitaux Universitaires de Genève Geneva Switzerland
| | - Adrian Banning
- Department of Cardiology John Radcliffe HospitalOxford University Hospitals Oxford United Kingdom
| | - Florim Cuculi
- Department of Cardiology Kantonsspital Lucerne Lucerne Switzerland
| | - Richard Kobza
- Department of Cardiology Kantonsspital Lucerne Lucerne Switzerland
| | - Thomas A Fischer
- Department of Cardiology Kantonsspital Winterthur Winterthur Switzerland
| | - Tuija Vasankari
- Heart Center Turku University Hospital and University of Turku Turku Finland
| | | | - L Christian Napp
- Department of Cardiology and Angiology Hannover Medical School Hannover Germany
| | - Monika Budnik
- Department of Cardiology Medical University of Warsaw Warsaw Poland
| | - Rafal Dworakowski
- Department of Cardiology King's College Hospital London United Kingdom
| | - Philip MacCarthy
- Department of Cardiology King's College Hospital London United Kingdom
| | - Christoph Kaiser
- Department of Cardiology University Hospital Basel Basel Switzerland
| | - Stefan Osswald
- Department of Cardiology University Hospital Basel Basel Switzerland
| | - Leonarda Galiuto
- Fondazione Policlinico Universitario A. Gemelli IRCCSUniversità Cattolica del Sacro Cuore Rome Italy
| | - Christina Chan
- Department of Cardiology Christchurch Hospital Christchurch New Zealand
| | - Paul Bridgman
- Department of Cardiology Christchurch Hospital Christchurch New Zealand
| | - Daniel Beug
- Department of Cardiology and Internal Medicine B University Medicine Greifswald Greifswald Germany.,German Centre for Cardiovascular Researchpartner site Greifswald Greifswald Germany
| | - Clément Delmas
- Department of Cardiology and Cardiac Imaging Center University Hospital of Rangueil Toulouse France
| | - Olivier Lairez
- Department of Cardiology and Cardiac Imaging Center University Hospital of Rangueil Toulouse France
| | - Ekaterina Gilyarova
- Intensive Coronary Care Unit Moscow City Hospital # 1 named after N. Pirogov Moscow Russia
| | - Alexandra Shilova
- Intensive Coronary Care Unit Moscow City Hospital # 1 named after N. Pirogov Moscow Russia
| | - Mikhail Gilyarov
- Intensive Coronary Care Unit Moscow City Hospital # 1 named after N. Pirogov Moscow Russia
| | - Martin Kozel
- Cardiocenter Third Faculty of Medicine Charles University in Prague and University Hospital Královské Vinohrady Prague Czech Republic
| | - Petr Tousek
- Cardiocenter Third Faculty of Medicine Charles University in Prague and University Hospital Královské Vinohrady Prague Czech Republic
| | - David E Winchester
- Division of Cardiovascular Medicine Department of Medicine College of Medicine University of Florida Gainesville FL
| | - Jan Galuszka
- Department of Internal Medicine I-Cardiology University Hospital Olomouc Olomouc Czech Republic
| | - Christian Ukena
- Klinik für Innere Medizin IIIUniversitätsklinikum des Saarlandes Homburg Germany
| | - Gregor Poglajen
- Advanced Heart Failure and Transplantation Center University Medical Center Ljubljana Ljubljana Slovenia
| | - Pedro Carrilho-Ferreira
- Cardiology Department Santa Maria University HospitalCHLNCAMLCCULFaculty of MedicineUniversity of Lisbon Lisbon Portugal
| | - Christian Hauck
- Klinik und Poliklinik für Innere Medizin II Universitätsklinikum Regensburg Regensburg Germany
| | | | | | - Yoshio Kobayashi
- Department of Cardiovascular Medicine Chiba University Graduate School of Medicine Chiba Japan
| | - Abhiram Prasad
- Department of Cardiovascular Diseases Mayo Clinic Rochester MN
| | | | - Kan Liu
- Division of Cardiology, Heart and Vascular Center University of Iowa Iowa City IA
| | - P Christian Schulze
- Department of Internal Medicine I University Hospital JenaFriedrich-Schiller-University Jena Jena Germany
| | - Matteo Bianco
- Division of Cardiology A.O.U. San Luigi Gonzaga Orbassano, Turin Italy
| | - Lucas Jörg
- Department of Cardiology Kantonsspital St. Gallen St. Gallen Switzerland
| | - Hans Rickli
- Department of Cardiology Kantonsspital St. Gallen St. Gallen Switzerland
| | - Gonçalo Pestana
- Department of Cardiology Centro Hospitalar Universitário de São JoãoE.P.E. Porto Portugal
| | - Thanh H Nguyen
- Department of Cardiology Basil Hetzel InstituteQueen Elizabeth HospitalUniversity of Adelaide Adelaide Australia
| | - Michael Böhm
- Klinik für Innere Medizin IIIUniversitätsklinikum des Saarlandes Homburg Germany
| | - Lars S Maier
- Klinik und Poliklinik für Innere Medizin II Universitätsklinikum Regensburg Regensburg Germany
| | - Fausto J Pinto
- Cardiology Department Santa Maria University HospitalCHLNCAMLCCULFaculty of MedicineUniversity of Lisbon Lisbon Portugal
| | - Petr Widimský
- Cardiocenter Third Faculty of Medicine Charles University in Prague and University Hospital Královské Vinohrady Prague Czech Republic
| | - Stephan B Felix
- Department of Cardiology and Internal Medicine B University Medicine Greifswald Greifswald Germany.,German Centre for Cardiovascular Researchpartner site Greifswald Greifswald Germany
| | - Grzegorz Opolski
- Department of Cardiology Medical University of Warsaw Warsaw Poland
| | | | - Wolfgang Rottbauer
- Department of Internal Medicine II-Cardiology University of UlmMedical Center Ulm Germany
| | - Gerd Hasenfuß
- Clinic for Cardiology and Pneumology Georg August University Goettingen Goettingen Germany
| | - Burkert M Pieske
- Department of Cardiology CharitéCampus Rudolf Virchow Berlin Germany
| | - Heribert Schunkert
- Deutsches Herzzentrum MünchenTechnische Universität München Munich Germany.,German Centre for Cardiovascular Research partner site Munich Heart Alliance Munich Germany
| | - Holger Thiele
- Department of Internal Medicine/Cardiology Heart Center Leipzig-University Hospital Leipzig Germany
| | - Johann Bauersachs
- Department of Cardiology and Angiology Hannover Medical School Hannover Germany
| | - Hugo A Katus
- Department of Cardiology Heidelberg University Hospital Heidelberg Germany
| | - John D Horowitz
- Department of Cardiology Basil Hetzel InstituteQueen Elizabeth HospitalUniversity of Adelaide Adelaide Australia
| | - Carlo Di Mario
- Structural Interventional Cardiology Careggi University Hospital Florence Italy
| | - Thomas Münzel
- Center for Cardiology Cardiology 1 University Medical Center Mainz Mainz Germany
| | - Filippo Crea
- Fondazione Policlinico Universitario A. Gemelli IRCCSUniversità Cattolica del Sacro Cuore Rome Italy
| | - Jeroen J Bax
- Department of Cardiology Leiden University Medical Centre Leiden The Netherlands
| | - Thomas F Lüscher
- Center for Molecular Cardiology Schlieren Campus University of Zurich Zurich Switzerland.,Royal Brompton and Harefield Hospitals Trust and Imperial College London United Kingdom
| | - Frank Ruschitzka
- Department of Cardiology University Heart CenterUniversity Hospital Zurich Zurich Switzerland
| | - Firat Duru
- Department of Cardiology University Heart CenterUniversity Hospital Zurich Zurich Switzerland
| | - Martin Borggrefe
- First Department of Medicine Faculty of Medicine University Medical Centre Mannheim University of Heidelberg Mannheim Germany.,German Center for Cardiovascular Researchpartner site Heidelberg-Mannheim Mannheim Germany
| | - Jelena R Ghadri
- Department of Cardiology University Heart CenterUniversity Hospital Zurich Zurich Switzerland
| | - Ibrahim Akin
- First Department of Medicine Faculty of Medicine University Medical Centre Mannheim University of Heidelberg Mannheim Germany.,German Center for Cardiovascular Researchpartner site Heidelberg-Mannheim Mannheim Germany
| | - Christian Templin
- Department of Cardiology University Heart CenterUniversity Hospital Zurich Zurich Switzerland
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10
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Malanchini G, Del Corral M, De Filippo P, Ferrari P, Solomon A, Krepp J. Cardiac arrhythmias and In-hospital mortality amongst patients with takotsubo cardiomyopathy: A retrospective study in an Italian population. IJC HEART & VASCULATURE 2020; 31:100608. [PMID: 32923578 PMCID: PMC7475186 DOI: 10.1016/j.ijcha.2020.100608] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 07/27/2020] [Indexed: 01/14/2023]
Abstract
Takotsubo cardiomyopathy was more common in women and the mortality rate was 2.2%. Ventricular arrhythmias were the strongest predictor of mortality. Age was associated with increased mortality in women with takotsubo cardiomyopathy.
Background Methods Results Conclusion
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11
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Vijiiac A, Ploscaru V, Vatasescu RG. The Great Myocardial Mimic - Takotsubo Syndrome. MAEDICA 2020; 15:111-121. [PMID: 32419871 PMCID: PMC7221266 DOI: 10.26574/maedica.2020.15.1.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Takotsubo syndrome has been traditionally considered a reversible form of acute heart failure triggered by an emotional or physical stressor, mainly occurring in women of post-menopausal age and often mimicking an acute coronary syndrome. While its pathophysiology is still incompletely understood, sympathetic overstimulation is known to play a central role in the disease. The classical hallmark of the condition was the presence of wall motion abnormalities limited to the apical segments of the ventricle, leading to the so-called apical ballooning, but different patterns of wall motion abnormalities are nowadays recognised. Different definitions and diagnostic criteria for takotsubo syndrome were proposed during the last decades, reflecting the heterogeneity of the condition and the gaps in the thorough understanding of the disease. While initially it was believed to be a benign entity, takotsubo syndrome has in fact similar morbidity and mortality with acute coronary syndromes, both on short- and long-term, highlighting the importance of proper risk stratification. Many questions still remain unanswered concerning the pathophysiology of the syndrome and the optimal therapeutic strategy for these patients.
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Affiliation(s)
- Aura Vijiiac
- Cardiology Department, Emergency Clinical Hospital Bucharest, Romania
| | - Vlad Ploscaru
- Cardiology Department, Emergency Clinical Hospital Bucharest, Romania
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12
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Prasitlumkum N, Rattanawong P. Response to letter of the editor “Mortality in Takotsubo Cardiomyopathy should also be accounted based on predisposing etiology”. Ann Noninvasive Electrocardiol 2019; 24:e12668. [DOI: 10.1111/anec.12668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 05/05/2019] [Indexed: 11/27/2022] Open
Affiliation(s)
- Narut Prasitlumkum
- University of Hawaii Internal Medicine Residency Program Honolulu Hawaii
| | - Pattara Rattanawong
- University of Hawaii Internal Medicine Residency Program Honolulu Hawaii
- Faculty of Medicine Ramathibodi Hospital Mahidol University Bangkok Thailand
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13
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Jha S, Zeijlon R, Enabtawi I, Espinosa AS, Chamat J, Omerovic E, Redfors B. Electrocardiographic predictors of adverse in-hospital outcomes in the Takotsubo syndrome. Int J Cardiol 2019; 299:43-48. [PMID: 31279663 DOI: 10.1016/j.ijcard.2019.06.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 06/11/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND Takotsubo syndrome (TS) is a life-threatening acute heart failure syndrome. However, little is known about risk factors for worse outcomes in TS and no high-risk ECG criteria have been defined. We sought to identify ECG predictors of life-threatening in-hospital complications in TS. METHOD AND RESULT Using the nationwide Swedish Angiography and Angioplasty Registry (SCAAR) we obtained data on all consecutive patients undergoing coronary angiography at Sahlgrenska University Hospital between June 2008 and February 2019. For all patients with TS we conducted in-depth chart reviews to confirm the TS diagnosis. For those with confirmed TS we then evaluated all ECGs obtained during the index hospitalization. The primary endpoint was the occurrence of in-hospital major adverse cardiac event (MACE), defined as the composite of death, ventricular tachycardia or fibrillation (VT/VF), or atrioventricular block ≥2 or asystole ≫10 s. We identified 215 patients with TS (mean age 69 ± 13 years; 93% women). MACE occurred in 34 patients (16%), of whom 20 had VT/VF (9,3%). Patients with MACE were less likely than those without MACE to have sinus rhythm (85% versus 96%, p = 0.025) or T-wave inversion (29% versus 51%, p = 0.025). After propensity score adjustment T-wave inversion was independently associated with lower MACE risk (adjusted odds ratio [AdjOR] 0.28, 95% confidence interval [CI] 0.10-0.76, p = 0.012) and VT/VF (AdjOR 0.24, 95% CI 0.06-0.94, p = 0.041). CONCLUSION T-wave inversion is common in TS and is associated with lower risk of MACE, driven by a lower risk of VT/VF.
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Affiliation(s)
- Sandeep Jha
- Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden; Wallenberg Laboratory, Gothenburg University, Gothenburg, Sweden; Department of Internal medicine, Kungälv Hospital, Kungälv, Sweden.
| | - Rickard Zeijlon
- Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden; Wallenberg Laboratory, Gothenburg University, Gothenburg, Sweden; Department of Internal Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Israa Enabtawi
- Wallenberg Laboratory, Gothenburg University, Gothenburg, Sweden
| | | | - Jasmina Chamat
- Wallenberg Laboratory, Gothenburg University, Gothenburg, Sweden
| | - Elmir Omerovic
- Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden; Wallenberg Laboratory, Gothenburg University, Gothenburg, Sweden
| | - Bjorn Redfors
- Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden; Wallenberg Laboratory, Gothenburg University, Gothenburg, Sweden
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14
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Chhabra L, Sareen P, Mwansa V, Khalid N. Mortality in Takotsubo cardiomyopathy should also be accounted based on predisposing etiology. Ann Noninvasive Electrocardiol 2019; 24:e12664. [PMID: 31155779 DOI: 10.1111/anec.12664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 05/05/2019] [Indexed: 12/28/2022] Open
Affiliation(s)
| | | | | | - Nauman Khalid
- Section of Interventional Cardiology, MedStar Washington Hospital Center, Washington, District of Columbia
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15
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Prasitlumkum N, Kittipibul V, Limpruttidham N, Rattanawong P, Chongsathidkiet P, Boondarikpornpant T. The presence of atrial fibrillation in Takotsubo cardiomyopathy is predictive of mortality: Systematic review and meta-analysis. Ann Noninvasive Electrocardiol 2018; 24:e12566. [PMID: 29938868 DOI: 10.1111/anec.12566] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 04/22/2018] [Accepted: 05/14/2018] [Indexed: 12/26/2022] Open
Abstract
INTRODUCTION Atrial fibrillation (AF) is known as the most common arrhythmia and an independent risk factor for mortality. Recent studies suggest that AF is associated with morbidity and mortality in Takotsubo cardiomyopathy (TTC). However, a systematic review and meta-analysis of the literature have not been done. We assessed the association between AF in patients with TTC and mortality by a systematic review of the literature and a meta-analysis. METHODS We comprehensively searched the databases of MEDLINE and EMBASE from inception to January 2018. Included studies were published prospective or retrospective cohort studies that compared all-cause mortality in TTC with AF versus without AF. Data from each study were combined using the random-effects, generic inverse variance method of DerSimonian and Laird to calculate risk ratios and 95% confidence intervals. RESULTS Five studies from August 2008 to October 2017 were included in this meta-analysis involving 2,321 subjects with TTC (243 with AF and 2,078 without AF). The presence of AF was associated with all-cause mortality (pooled odds ratio = 2.19, 95% confidence interval: 1.57-3.06, p < 0.001, I 2 = 0%). CONCLUSION Atrial fibrillation increased all-cause mortality by double among patients with TTC compared to without it. Our study suggests that the presence of AF in TTC is prognostic for all-cause mortality.
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Affiliation(s)
- Narut Prasitlumkum
- University of Hawaii Internal Medicine Residency Program, Honolulu, Hawaii
| | - Veraprapas Kittipibul
- Faculty of Medicine, Department of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Nath Limpruttidham
- University of Hawaii Internal Medicine Residency Program, Honolulu, Hawaii
| | - Pattara Rattanawong
- University of Hawaii Internal Medicine Residency Program, Honolulu, Hawaii.,Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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