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https://www.readbyqxmd.com/read/28507838/recurrent-stress-cardiomyopathy-during-copd-exacerbation-are-beta-adrenergic-agonists-only-to-blame
#1
Ioanna Katsa, Panagiota Christia, Daniele Massera, Robert Faillace
Takotsubo cardiomyopathy (TCM) is a variant of stress-induced cardiomyopathy, characterized by transient left ventricular dysfunction that may be associated with emotional or physical triggers. We present the case of a 51-year-old Caucasian female with severe chronic obstructive pulmonary disease (COPD) who presented with syncope and was found to have her second lifetime episode of stress-induced cardiomyopathy. Eight months prior, she had been admitted with a COPD exacerbation and was found to have left ventricular (LV) dysfunction with ejection fraction (EF) of 22% attributed to TCM with subsequent normalization of her left ventricular function...
April 14, 2017: Curēus
https://www.readbyqxmd.com/read/28492156/electrical-storm-or-naxos-syndrome-in-an-adult-causing-recurrent-syncope
#2
Muhammad Furrakh Maqbool, Muhammad Sajid, Ahmed Noeman
Among the rare and well-known causes of sudden cardiac death by malignant arrthymias is a condition called arrhythmogenic right ventricular cardiomyopathy. It commonly presents with right ventricular dilatation, dysfunction and ventricular tachycardia of left bundle branch morphology due to fibro-fatty infiltration of right ventricle in second to fifth decade of life, making it an unrecognized and important cause of sudden cardiac death. Two rare variants of arrhythmogenic right ventricular cardiomyopathy are Carvajal syndrome and Naxos syndrome...
April 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28431063/left-ventricular-dysfunction-is-associated-with-frequent-premature-ventricular-complexes-and-asymptomatic-ventricular-tachycardia-in-children
#3
R A Bertels, L M Harteveld, L H Filippini, S A Clur, N A Blom
Aims: To assess the risk factors for left ventricular (LV) dysfunction in a paediatric population with idiopathic frequent premature ventricular contractions (PVCs) and asymptomatic ventricular tachycardias (VTs). Methods and Results: Paediatric patients with the diagnosis of idiopathic frequent PVCs and asymptomatic VTs were retrospectively evaluated. Frequent PVCs were defined as ≥5% on 24 h Holter recording. Left ventricular dysfunction was defined as a shortening fraction of ≤28%...
April 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28275558/myocardial-strain-and-symptom-severity-in-severe-aortic-stenosis-insights-from-cardiovascular-magnetic-resonance
#4
Tarique Al Musa, Akhlaque Uddin, Peter P Swoboda, Pankaj Garg, Timothy A Fairbairn, Laura E Dobson, Christopher D Steadman, Anvesha Singh, Bara Erhayiem, Sven Plein, Gerald P McCann, John P Greenwood
BACKGROUND: Symptomatic severe aortic stenosis (AS) is a class I indication for replacement in patients when left ventricular ejection fraction (LVEF) is preserved. However, symptom reporting is often equivocal and decision making can be challenging. We aimed to quantify myocardial deformation using cardiovascular magnetic resonance (CMR) in patients classified by symptom severity. METHODS: Forty-two patients with severe AS referred to heart valve clinic were studied using tagged CMR imaging...
February 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28247566/natural-history-of-severe-aortic-stenosis-diastolic-wall-strain-as-a-novel-prognostic-marker
#5
Edinrin Obasare, Vikas Bhalla, Deepakraj Gajanana, Mary Rodriguez Ziccardi, Jose N Codolosa, Vincent M Figueredo, Dennis Lynn Morris, Gregg S Pressman
BACKGROUND AND AIM: Diastolic wall strain (DWS) has been proposed as a simple noninvasive measure of left ventricular (LV) stiffness. This study investigated DWS as a possible predictor of mortality in severe aortic stenosis (AS). METHODS: 138 patients with severe AS (indexed aortic valve area [AVA]<0.6 cm(2) /m(2) ) and normal ejection fraction (>55%) were included. 52 patients (38%) had aortic valve interventions or poor image quality (n=5) and were excluded leaving 86 in the study group (84±8 years, 70% female, 69% African American)...
March 1, 2017: Echocardiography
https://www.readbyqxmd.com/read/28079110/left-ventricular-noncompaction-cardiomyopathy-cardiac-neuromuscular-and-genetic-factors
#6
REVIEW
Josef Finsterer, Claudia Stöllberger, Jeffrey A Towbin
Left ventricular hypertrabeculation (LVHT) or noncompaction is a myocardial abnormality of unknown aetiology, frequently associated with monogenic disorders, particularly neuromuscular disorders, or with chromosomal defects. LVHT is diagnosed usually by echocardiography by the presence of a bilayered myocardium consisting of a thick, spongy, noncompacted endocardial layer and a thin, compacted, epicardial layer. The pathogenesis of LVHT is unsolved, and the diagnostic criteria, prognosis, and optimal treatment of patients with LVHT are under debate...
April 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/27747019/cardiogenic-syncope-possibly-related-to-bevacizumab-containing-combination-chemotherapy-for-advanced-non-small-cell-lung-cancer
#7
EDITORIAL
Haruka Chino, Yosuke Amano, Yasuhiro Yamauchi, Jun Matsuda, Norihiko Takeda, Goh Tanaka, Daiya Takai, Takahide Nagase
We report the case of a 55-year-old man with stage IV lung adenocarcinoma who received carboplatin-paclitaxel-bevacizumab chemotherapy as second-line therapy. After four cycles of chemotherapy, he experienced syncope with a decrease in blood pressure. Electrocardiography (ECG) revealed atrial fibrillation. Cardiac ultrasonography showed a markedly reduced ejection fraction (45%), with moderate decrease in comparison to that before chemotherapy (66%). Bisoprolol fumarate was initiated, and the conversion to sinus rhythm was detected by ECG 4 days after the syncope...
September 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/27707537/exercise-in-patients-with-hypertrophic-cardiomyopathy-a-review-of-current-evidence-national-guideline-recommendations-and-a-proposal-for-a-new-direction-to-fitness
#8
REVIEW
Waseem Hindieh, Arnon Adler, Adaya Weissler-Snir, Dana Fourey, Sarah Harris, Harry Rakowski
Hypertrophic cardiomyopathy is a common genetic disorder with a prevalence of 1:500 in the general population. Amongst a varied spectrum of clinical presentations, the most feared complication of this cardiac disorder is sudden cardiac death. Although only a minority of patients with hypertrophic cardiomyopathy who suffer sudden cardiac death or resuscitated cardiac arrest do so during exercise, strenuous physical activity is regarded as an important trigger for these tragic outcomes. Furthermore, during exercise, patients with hypertrophic cardiomyopathy may develop augmentation of left ventricular outflow tract obstruction, myocardial ischemia, diastolic dysfunction and/or inappropriate vasodilation in non-exercising vascular beds...
April 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/27439928/sinus-surgery-complicated-by-ventricular-fibrillation-in-a-young-patient-inverted-reverse-takotsubo-cardiomyopathy
#9
Gültekin Günhan Demir, Gamze Babur Güler, Ekrem Güler, Hacı Murat Güneş, Filiz Kızılırmak
Takotsubo cardiomyopathy (TTC), also known as left ventricular apical ballooning syndrome or stress cardiomyopathy, is characterized by transient left ventricular systolic dysfunction and the absence of obstructive lesion in the epicardial coronary arteries. The most common presentation is acute substernal chest pain, although occasionally dyspnea and syncope, and rarely shock with ST-segment elevation and elevated cardiac biomarkers have been observed. Inverted (reverse) TTC is a rare pattern characterized hypokinesis of the basal and midventricular segments...
July 2016: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/27296905/episodic-left-bundle-branch-block-a-comprehensive-review-of-the-literature
#10
REVIEW
George Bazoukis, Konstantinos Tsimos, Panagiotis Korantzopoulos
Episodic (transient/ intermittent) left bundle branch block (LBBB) has been associated with different conditions such as bradycardia, tachycardia, anesthesia, acute pulmonary embolism, changes in intrathoracic pressure, chest trauma, cardiac interventional procedures, mad honey poisoning, and in other clinical settings. Of note, exclusion of an acute coronary syndrome in the setting of episodic LBBB is of great importance. Moreover, episodic LBBB is sometimes symptomatic and may be associated with left ventricular systolic and/or diastolic dysfunction or conduction disturbances leading to syncope...
March 2016: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/27247014/left-ventricular-dysfunction-is-associated-with-frequent-premature-ventricular-complexes-and-asymptomatic-ventricular-tachycardia-in-children
#11
R A Bertels, L M Harteveld, L H Filippini, S A Clur, N A Blom
AIMS: To assess the risk factors for left ventricular (LV) dysfunction in a paediatric population with idiopathic frequent premature ventricular contractions (PVCs) and asymptomatic ventricular tachycardias (VTs). METHODS AND RESULTS: Paediatric patients with the diagnosis of idiopathic frequent PVCs and asymptomatic VTs were retrospectively evaluated. Frequent PVCs were defined as ≥5% on 24 h Holter recording. Left ventricular dysfunction was defined as a shortening fraction of ≤28%...
May 31, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27063413/pulmonary-embolism-as-a-complication-of-an-electrophysiological-study-a-case-report
#12
Sahela Nasrin, Fathima Aaysha Cader, Mohammad Salahuddin, Tahera Nazrin, Jabed Iqbal, Masuma Jannat Shafi
BACKGROUND: Electrophysiological studies have become an established practice in the evaluation and treatment of arrhythmias. Symptomatic pulmonary embolism as a result of deep vein thrombosis arising from multiple venous sheath femoral vein catheterization is an uncommon complication associated with it. We report the case of a 33-year-old woman who developed pulmonary embolism after an electrophysiological study, which was successfully treated at a cardiac hospital in Bangladesh. CASE PRESENTATION: A 33-year-old Bangladeshi woman with hypertension and diabetes had initially presented with recurrent episodes of paroxysmal atrial fibrillation that manifested as palpitations for 2 years...
April 11, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27009208/-refractory-epilepsy-what-lies-beneath
#13
Syedah Saira Bokhari, Satwat Hashmi
A 30-year-old woman presented to the emergency room with recurrent seizures for 5 days. She had been diagnosed with epilepsy 2 years previously but stopped treatment due to the side effects of her medications. She was now experiencing episodes every 15-30 min. While undergoing a brain MRI to investigate for structural central nervous system pathology, she experienced another episode, preceded by prodromal symptoms. Polymorphic ventricular tachycardia was noted during the event. Further investigation revealed a normal QT interval, normal electrolyte panel, normal coronaries and severe left ventricular systolic dysfunction...
March 23, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27002622/left-ventricular-non-compaction-in-athletes-to-play-or-not-to-play
#14
REVIEW
Eric Emmanuel Coris, Byron Keith Moran, Raymond De Cuba, Ted Farrar, Anne B Curtis
Isolated left ventricular non-compaction (LVNC) has usually been viewed as a rare cardiomyopathy in athletes. However, with advances in diagnostic imaging techniques and increased use of pre-participation screening electrocardiograms (ECGs), apparent LVNC is being recognized in an increasing number of athletes. Given the lack of a true gold standard for diagnosis, significant debate continues regarding optimal diagnostic criteria. There are increasing data to support the possibility of over-diagnosing this cardiomyopathy in an athletic population due to the physiologic adaptation to the extreme preload and afterload characteristic of intense athletic participation...
September 2016: Sports Medicine
https://www.readbyqxmd.com/read/26926974/aortic-stenosis-diagnosis-and-treatment
#15
REVIEW
Brian H Grimard, Robert E Safford, Elizabeth L Burns
Aortic stenosis affects 3% of persons older than 65 years. Although survival in asymptomatic patients is comparable to that in age- and sex-matched control patients, it decreases rapidly after symptoms appear. During the asymptomatic latent period, left ventricular hypertrophy and atrial augmentation of preload compensate for the increase in afterload caused by aortic stenosis. As the disease worsens, these compensatory mechanisms become inadequate, leading to symptoms of heart failure, angina, or syncope. Aortic valve replacement is recommended for most symptomatic patients with evidence of significant aortic stenosis on echocardiography...
March 1, 2016: American Family Physician
https://www.readbyqxmd.com/read/26475296/arrhythmogenic-phenotype-in-dilated-cardiomyopathy-natural-history-and-predictors-of-life-threatening-arrhythmias
#16
Anita Spezzacatene, Gianfranco Sinagra, Marco Merlo, Giulia Barbati, Sharon L Graw, Francesca Brun, Dobromir Slavov, Andrea Di Lenarda, Ernesto E Salcedo, Jeffrey A Towbin, Jeffrey E Saffitz, Frank I Marcus, Wojciech Zareba, Matthew R G Taylor, Luisa Mestroni
BACKGROUND: Patients with dilated cardiomyopathy (DCM) may present with ventricular arrhythmias early in the disease course, unrelated to the severity of left ventricular dysfunction. These patients may be classified as having an arrhythmogenic DCM (AR-DCM). We investigated the phenotype and natural history of patients with AR-DCM. METHODS AND RESULTS: Two hundred eighty-five patients with a recent diagnosis of DCM (median duration of the disease 1 month, range 0 to 7 months) and who had Holter monitoring at baseline were comprehensively evaluated and followed for 107 months (range 29 to 170 months)...
October 16, 2015: Journal of the American Heart Association
https://www.readbyqxmd.com/read/26386019/fatigue-as-presenting-symptom-and-a-high-burden-of-premature-ventricular-contractions-are-independently-associated-with-increased-ventricular-wall-stress-in-patients-with-normal-left-ventricular-function
#17
Carine F B van Huls van Taxis, Sebastiaan R D Piers, Marta de Riva Silva, Olaf M Dekkers, Daniël A Pijnappels, Martin J Schalij, Adrianus P Wijnmaalen, Katja Zeppenfeld
BACKGROUND: High idiopathic premature ventricular contractions (PVC) burden has been associated with PVC-induced cardiomyopathy. Patients may be symptomatic before left ventricular (LV) dysfunction develops. N-terminal pro-B-type natriuretic peptide (NT-proBNP) and circumferential end-systolic wall stress (cESS) on echocardiography are markers for increased ventricular wall stress. This study aimed to evaluate the relation between presenting symptoms, PVC burden, and increased ventricular wall stress in patients with frequent PVCs and preserved LV function...
December 2015: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/26342901/pulmonary-hypertension-and-right-ventricular-failure-in-emergency-medicine
#18
REVIEW
Susan R Wilcox, Christopher Kabrhel, Richard N Channick
Pulmonary hypertension is a hemodynamic condition, defined as a mean pulmonary artery pressure by right-sided heart catheterization of at least 25 mm Hg at rest. It is classified into 5 general groups based on the underlying cause, with left ventricular failure and chronic obstructive pulmonary disease being 2 of the most common causes in the United States. Although the specifics of the pathophysiology will vary with the cause, appreciating the risks of pulmonary hypertension and right ventricular failure is critical to appropriately evaluating and resuscitating pulmonary hypertension patients in the emergency department (ED)...
December 2015: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/26245912/differences-in-apical-and-non-apical-types-of-hypertrophic-cardiomyopathy-a-prospective-analysis-of-clinical-echocardiographic-and-cardiac-magnetic-resonance-findings-and-outcome-from-350-patients
#19
Eun Kyoung Kim, Sang-Chol Lee, Ji Won Hwang, Sung-A Chang, Sung-Ji Park, Young Keun On, Kyoung Min Park, Yeon Hyeon Choe, Sung-Mok Kim, Seung Woo Park, Jae K Oh
AIMS: Apical hypertrophic cardiomyopathy (ApHCM) is thought to have a favourable clinical outcome, compared with other types of HCM. We sought to investigate the clinical and anatomical differences in cardiovascular imaging between ApHCM and non-ApHCM. METHODS AND RESULTS: A total of 350 patients diagnosed with HCM underwent cardiovascular magnetic resonance (CMR) and echocardiography. All enrolled subjects were prospectively followed up for adverse clinical outcomes...
June 2016: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/25919755/development-of-a-risk-score-to-predict-sudden-death-in-patients-with-chaga-s-heart-disease
#20
Adriana Campos Junqueira de Souza, Gil Salles, Alejandro Marcel Hasslocher-Moreno, Andréa Silvestre de Sousa, Pedro Emmanuel Alvarenga Americano do Brasil, Roberto Magalhães Saraiva, Sergio Salles Xavier
BACKGROUND: Sudden death is the most frequent mechanism of death in patients with chronic Chaga's cardiopathy, regardless of the degree of myocardial involvement. We developed a model to predict the risk of sudden death in patients with chronic Chaga's cardiopathy. METHODS: We retrospectively evaluated 373 patients. The association between the risk factors for chronic Chaga's cardiopathy and sudden death was assessed using Cox proportional-hazards analysis, and a risk score was determined...
2015: International Journal of Cardiology
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