Malignant arrhythmia in a COVID-19 patient with a structurally normal heart by Clare Anne Yoke Kum Fong, Benjamin Wei Liang Tung, Weiqin Lin, Kay Choong See

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Recurrent Pneumonia and a Normal Heart: Late Complication after Repair of Hemianomalous Pulmonary Venous Drainage—A Cautionary Tale by Maryanne Caruana, Victor Grech, Jane Somerville

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Traveling Thrombus in the Right Atrium: Is It the Final Destination? by Maneesh Bhargava, Erhan Dincer

“…Right heart thrombus is rare in structurally normal heart. Here, we report a 74-year-old man with a right atrial thrombus who presented with shortness of breath.…”
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Torsades De Pointes Electrical Storm Induced by H1N1 in a Patient with KCNH2 Variant of Unknown Significance by Bashar Khiatah, Jonathan Dukes, Christina Desai, Amanda Frugoli

“…This report describes a case of an electrical storm of Torsades De Pointes in a structurally normal heart, following an H1N1 infection in the presence of a genetic variant of unknown significance. …”
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Large Left Ventricular Thrombus in a Patient with Systemic and Venous Thromboembolism Secondary to Protein C and S Deficiency by Mohit Pahuja, Bujji Ainapurapu, Aiden Abidov

“…The presentation with intracardiac thrombus in a normal heart should raise a concern of a probable thrombophilia.…”
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Spontaneous Pneumothorax in a Patient with Systemic Lupus Erythematosus and Recent Infection with Coronavirus by Nicholas Graves, Julia Flint, Amol Sagdeo, Ayman Askari, Patrick Ball, Hana Morrissey

“…An echocardiogram demonstrated normal heart anatomy and filling dynamics. The patient was diagnosed with simple pneumothorax and ongoing myopericarditis managed with colchicine, ibuprofen, and low-dose prednisolone. …”
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Idiopathic Intractable Diarrhoea Leading to Torsade de Pointes by Kyriacos Mouyis, Darlington Okonko, Constantinos G. Missouris

“…She had a structurally normal heart with no coronary artery disease. Investigations revealed low potassium at 3.0 mmol/L. …”
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Suspected Brugada Phenocopy Secondary to Coronary Slow Flow by Alicia Shim, Rajeev Seecheran, Valmiki Seecheran, Sangeeta Persad, Shiva Sreenivasan, Ronald Henry, Naveen Anand Seecheran

“…Brugada syndrome (BrS) is a genetic condition that accentuates the risk of potentially lethal ventricular arrhythmias and sudden cardiac death (SCD) in a structurally normal heart. The Brugada electrocardiographic pattern may manifest separately from the syndrome—this clinical scenario has been described as Brugada phenocopy (BrP). …”
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Effect of Reperfusion on Time Domain Parameters of Heart Rate Variability by Sadia Mubarak, Bushra Riaz, Mehvish Ashfaq, Sidra Hamid, Amina Rasul, Mamoona Shafiq

“…For time domain analysis normal heart rate, SDNN, SDNNi, SDANN, RMSSD and pNN50 were recorded from 12 lead digital ECG data. …”
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The study of the functionality of cardiomyocytes obtained from induced pluripotent stem cells for the modeling of cardiac arrhythmias based on long QT syndrome by M. M. Slotvitsky, V. A. Tsvelaya, S. R. Frolova, E. V. Dement’eva, K. I. Agladze

“…After an electrophysiological study on individual cardiac cells from patients with the LQT syndrome, it became apparent that the search for a mechanism for the transition of the normal heart rhythm to chaotic and fibrillation cannot be limited to recording ion currents in single cells. …”
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Impact of Different Serum Potassium Levels on Postresuscitation Heart Function and Hemodynamics in Patients with Nontraumatic Out-of-Hospital Cardiac Arrest by Yan-Ren Lin, Yuan-Jhen Syue, Tsung-Han Lee, Chu-Chung Chou, Chin-Fu Chang, Chao-Jui Li

“…Compared with hyperkalemia, a normal potassium level was more likely to be associated with a normal heart rate (OR: 2.97, 95% CI: 1.74–5.08) and sinus rhythm (OR: 2.28, 95% CI: 1.45–3.58). …”
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Safety and efficacy of catheter ablation in atrial fibrillation patients with heart failure with preserved ejection fraction by Songbing Long, Yuanjun Sun, ShiYu Dai, Xianjie Xiao, Zhongzhen Wang, Wei Sun, Lianjun Gao, Yunlong Xia, Xiaomeng Yin

“…Importantly, CA in HFPEF patients showed comparable maintenance of sinus rhythm (SR) and safety outcomes when compared to CA in individuals with normal heart function.…”
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A Case of Infective Endocarditis and Pulmonary Septic Emboli Caused by Lactococcus lactis by Bshara Mansour, Adib Habib, Nazih Asli, Yuval Geffen, Dan Miron, Nael Elias

“…Infective endocarditis is a rare condition in children with normal hearts. We present here a case of previously healthy eleven-year-old girl with infective endocarditis and pulmonary septic emboli caused by a very rare bacterial etiology (Lactococcus lactis). …”
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Bradykinin Type-2 Receptor Expression Correlates with Age and Is Subjected to Transcriptional Regulation by Inka Liesmaa, Naotaka Shiota, Jorma O. Kokkonen, Petri T. Kovanen, Ken A. Lindstedt

“…Furthermore, the allelic frequencies for the −9 and +9 alleles were 0.42 and 0.58 in normal hearts and 0.64 and 0.36 in IDC hearts, respectively. …”
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