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https://www.readbyqxmd.com/read/28419455/human-electrical-muscular-incapacitation-and-effects-on-qtc-interval
#1
John A Gibbons, Andrew J Mojica, Mark E Peele
Human Electrical Muscular Incapacitation (HEMI) is used to subdue combative individuals. Changes in cardiac electrical activity have been proposed as the cause of death in a small fraction of these individuals. The current study sought to determine whether changes in QTc interval occur after HEMI exposure. Twenty-four participants had EKG readings before a 5-second HEMI exposure and within 30 min after exposure. All subject EKGs were read by a data-blinded cardiac electrophysiologist who calculated a QT corrected (QTc) interval...
April 17, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28414682/a-left-main-coronary-artery-thrombus-presenting-as-a-non-st-elevation-mi
#2
U Ezema, D Daberkow, T Delord, L Guidry, N R Sells
INTRODUCTION: Left main coronary artery (LMCA); thrombus with an acute myocardial infarction identified with coronary angiography is a clinically rare condition with an extremely high mortality rate. We present a case of LMCA thrombus that presented as a non-ST elevation myocardial infarction (NSTEMI);. CASE: A 45-year-old woman with a history of tobacco use and hyperlipidemia presented with a complaint of 10/10 "hard pain" across her chest radiating to her left shoulder and breast which woke her from sleep...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28414673/purulent-pericarditis-due-to-an-infected-pacemaker-lead
#3
Teresa Backes
INTRODUCTION: Intravenous drug users have a substantially increased risk of infective endocarditis, especially in the setting of implanted cardiac devices. Purulent pericarditis is a rare occurrence that can occur iatrogenically or through direct or hematogenous spread. CASE DESCRIPTION: A 75 year old man with a past medical history significant for hepatitis C, IV drug abuse, and sick sinus syndrome status post pacemaker was brought in by EMS with a chief complaint of diaphoresis and chest pain...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28414664/gonococcal-endocarditis-the-gift-that-stops-giving-an-uncommon-presentation-of-a-common-disease
#4
G Olayemi, M Oferczak, A Elagizi, I El-Abbassi, M Eschete, J Crowe
INTRODUCTION: Gonorrhea is the 2nd most common sexually transmitted disease in the US with 800,000 cases of gonorrhea each year. Disseminated gonorrhea infection occurs in 0.5 percent - 3 percent of these patients and is more frequent in woman younger than 40 years of age. CASE: A 36 year old woman with a history of polysubstance abuse presented with 10 day history of feeling generally unwell. At presentation, vitals were remarkable for tachycardia and hypotension...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28414663/not-another-acs-rule-out
#5
S Preston, R Nelson, M Watts, D Smith, T Dewenter, D Spruill
CASE: A 50 year old African-American woman with diabetes, hypertension, and hyperlipidemia presented with progressively worsening retro-sternal chest pain, exacerbated by activity and relieved by rest. She also endorsed a thirty-pound unintentional weight loss, and dysphagia. She was dysarthric with left-sided Bell's Palsy and a palpable left axillary lymph node. She had been evaluated at several hospitals in the previous months for similar typical chest pain. Her troponin values were normal, and an EKG showed T-wave inversions in leads I and aVL...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28400221/validation-of-a-self-monitoring-tool-for-use-in-exercise-therapy
#6
Camilla S Powierza, Michael D Clark, Jaime M Hughes, Kevin A Carneiro, Jason P Mihalik
BACKGROUND: Aerobic exercise at a sub-symptom heart rate has been recommended as therapy for Post-Concussion Syndrome (PCS). Assessing adherence with an accurate heart rate monitoring instrument is difficult limiting the proliferation of large-scale randomized controlled trials. OBJECTIVE: To evaluate the validity of the Fitbit Charge HR against electrocardiogram (EKG) to monitor heart rate during a treadmill-based exercise protocol. DESIGN: A methods comparison study...
April 8, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28367965/identification-of-atrial-fibrillation-by-quantitative-analyses-of-fingertip-photoplethysmogram
#7
Sung-Chun Tang, Pei-Wen Huang, Chi-Sheng Hung, Shih-Ming Shan, Yen-Hung Lin, Jiann-Shing Shieh, Dar-Ming Lai, An-Yeu Wu, Jiann-Shing Jeng
Atrial fibrillation (AF) detection is crucial for stroke prevention. We investigated the potential of quantitative analyses of photoplethysmogram (PPG) waveforms to identify AF. Continuous electrocardiogram (EKG) and fingertip PPG were recorded simultaneously in acute stroke patients (n = 666) admitted to an intensive care unit. Each EKG was visually labeled as AF (n = 150, 22.5%) or non-AF. Linear and nonlinear features from the pulse interval (PIN) and peak amplitude (AMP) of PPG waveforms were extracted from the first 1, 2, and 10 min of data...
April 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336907/new-task-force-criteria-provide-evolution-in-diagnosis-of-arrhythmogenic-cardiomyopathy-in-patients-without-typical-progression-of-the-disease
#8
Mariana S Parahuleva, Jens Figiel, Holger Ahrens, Bernhard Schieffer, Dimitar Divchev, Ulrich Lüsebrink
BACKGROUND The original Task Force Criteria from 1994 for the clinical diagnosis of ARVC were highly specific and based on structural, histological, EKG, and familial features of disease. However, recommendations for clinical diagnosis and management of ARVC are sparse and lacked sensitivity for early disease. CASE REPORT Ventricular electrical instability and sudden cardiac death are the hallmarks of ARVC, and are often present before structural abnormalities. In this case report, we describe a patient who had detectable electrical abnormalities and structural changes that remained unchanged for over 10 years...
March 24, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28290845/-assessment-of-efficiency-of-medicamentous-therapy-in-correction-of-structurally-functional-changes-of-the-cardiac-muscle-at-patients-with-arterial-hypertension-in-combination-with-bronchial-asthma
#9
E I Tarlovskaya, A A Odegova
BACKGROUND: Bronchial asthma (BA) is a serious problem. It was found that the frequency of arterial hypertension (AH) detection in patients with asthma is about 30 %. At patients practically all types of violations of a warm rhythm meet a bronkhoobstruktivny syndrome. Emergence of rather new preparations - If-blockers, opens new opportunities in correction of heart rate (HR) and a cardioprotection at a combination of AH and BA. AIM: To assess therapy diltiazem-retard and ivabradine on structurally functional changes of a cardiac muscle and HR at patients with AH in combination with BA...
June 2016: Kardiologiia
https://www.readbyqxmd.com/read/28287520/murine-echocardiography-of-left-atrium-aorta-and-pulmonary-artery
#10
Alejandro Granillo, Celia A Pena, Thuy Pham, Lavannya M Pandit, George E Taffet
The present methodology teaches the investigator how to measure and use the LAV as a surrogate of chronic elevations in Left Ventricular diastolic pressure through echocardiography, as well as to obtain measurements of the Aorta and PA diameter in mice. Mice older than 10 d of age can be analyzed using the present technique. The technique is composed of 3 main steps: set-up, image acquisition, and image analysis. The set-up step consists of getting the mouse anesthetized with 1% isoflurane, shaving it, and taping it in a supine position to a heated EKG board where the image acquisition will take place...
February 20, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28259551/diagnostic-yield-of-device-interrogation-in-the-evaluation-of-syncope-in-an-elderly-population
#11
Robert N D'Angelo, Christopher C Pickett
BACKGROUND: Device interrogation has become a standard part of the syncope evaluation for patients admitted with permanent pacemakers (PPM) or implantable cardiac defibrillators (ICD), although few studies have shown interrogation yields clinically useful data. The purpose of this study is to determine the diagnostic yield of device interrogation as well as other commonly performed tests in the workup of unexplained syncope in patients with previously implanted PPMs or ICDs. METHODS: We retrospectively reviewed records of 88 patients admitted to our medical center for syncope with previously implanted pacemakers between January 1, 2005 and January 1, 2015 using ICD-9 billing data...
February 27, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28245821/gdf-15-plasma-levels-in-chronic-obstructive-pulmonary-disease-are-associated-with-subclinical-coronary-artery-disease
#12
Carlos H Martinez, Christine M Freeman, Joshua D Nelson, Susan Murray, Xin Wang, Matthew J Budoff, Mark T Dransfield, John E Hokanson, Ella A Kazerooni, Gregory L Kinney, Elizabeth A Regan, J Michael Wells, Fernando J Martinez, MeiLan K Han, Jeffrey L Curtis
BACKGROUND: Growth differentiation factor-15 (GDF-15), a cytokine associated with cardiovascular mortality, increases during chronic obstructive pulmonary disease (COPD) exacerbations, but any role in stable COPD is unknown. We tested associations between GDF-15 and subclinical coronary atherosclerosis, assessed by coronary artery calcium (CAC) score, in COPD subjects free of clinical cardiovascular disease (CVD). METHODS: Cross-sectional analysis of COPD participants (GOLD stages 2-4) in the COPDGene cohort without CVD at enrollment, using baseline CAC (from non-EKG-gated chest computed tomography) and plasma GDF-15 (by custom ELISA)...
February 28, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28235505/tension-pneumomediastnum-a-rare-cause-of-acute-intraoperative-circulatory-collapse-in-the-setting-of-unremarkable-tee-findings
#13
Jonathan B Weaver, Avinash B Kumar
DESIGN: Case report. SETTING: Operating room. PATIENT: 25YF, ASA IV E who underwent an emergent decompressive craniectomy for refractory intracranial hypertension secondary to acute intracranial hemorhage. INTERVENTIONS: A 25Y caucasian female presented with acute intracranial hemorrhage with intraventricular extension secondary to Moya Moya disease. Post admisison, she underwent an emergent decompressive craniectomy for medically refractory intracranial hypertension...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28218629/fever-induced-brugada-pattern-misdiagnosed-as-an-acute-myocardial-infarction
#14
David Tadin, Roberto Quintal
The Brugada syndrome is a rare condition associated with increased risk of ventricular tachyarrhythmias and sudden cardiac death (SCD). The Brugada pattern on electrocardiogram (EKG) is known to be revealed by several precipitants including febrile illnesses. The appearance of a Brugada pattern on EKG with fever may indicate an elevated risk of arrhythmia or sudden cardiac death. We report a case in which the electrocardiographic abnormality of Brugada pattern induced by sepsis was initially misinterpreted as a ST-segment elevation myocardial infarction (STEMI)...
January 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28217615/type-1-brugada-pattern-electrocardiogram-induced-by-hypokalemia
#15
Thein Swe, Muhammad Hassan Dogar
Coved-type ST-segment elevation in the right precordial leads are the characteristics of Brugada syndrome, an inherited arrhythmogenic ion channel disease, which could lead to ventricular arrhythmia and sudden death. Hypokalemia alone may induce Type 1 Brugada pattern electrocardiogram (EKG), and the association has rarely been reported. We describe a patient with hypokalemia 2.9 mmol/L and the appearance of new right bundle branch block pattern with coved ST-segment elevations with inverted T wave in leads V1-V2...
July 2016: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/28215710/altered-mental-status-in-the-emergency-department-can-an-electrocardiogram-show-the-right-way-to-go
#16
Andre Dias, Emiliana Franco, Jasmine Martinez, Vincent M Figueredo
A 38-year-old African American male patient with a past medical history of human immunodeficiency virus and schizophrenia who was noncompliant with medications presented to the emergency department (ED) after activation of the local crisis response center for altered mental status. Upon arrival he was lethargic and uncooperative, unable to provide any significant details apart from pleuritic chest pain. His blood pressure was 133/88 mmHg, heart rate 43 beats per minute and initial body temperature 36.1 °C which prompted an electrocardiogram (EKG)...
February 2, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28211133/an-unusual-short-rp-tachycardia-what-is-the-mechanism
#17
Joshua Balog
A 68-year-old man with a history of a structurally normal heart by echocardiography, an unsuccessful ablation of a narrow complex tachycardia and frequent symptoms of palpitations presents for an electrophysiology study and ablation. Baseline 12-lead EKG demonstrated sinus rhythm without ventricular preexcitation. This article is protected by copyright. All rights reserved.
February 17, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28208140/first-diagnosis-of-atrial-fibrillation-at-the-time-of-stroke
#18
Leila H Borowsky, Susan Regan, Yuchiao Chang, Alison Ayres, Steven M Greenberg, Daniel E Singer
BACKGROUND: Atrial fibrillation (AF) is a major cause of ischemic stroke. Individuals with undiagnosed AF lack the stroke protection afforded by oral anticoagulants. We obtained a contemporary estimate of the percentage of AF patients newly diagnosed at the time of stroke. METHODS: We identified patients admitted to the Massachusetts General Hospital (MGH) from January 1, 2010 to December 31, 2013 with acute ischemic stroke and either previously or newly diagnosed AF using hospital stroke registry data and stroke and AF ICD-9 code searches of hospital databases...
2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28149669/survey-of-experts-on-current-endothelial-keratoplasty-techniques
#19
Winston Chamberlain, Ariana Austin, Mark Terry, Bennie H Jeng, Jennifer Rose-Nussbaumer
OBJECTIVE: To survey cornea specialists' opinions on different endothelial keratoplasty techniques and to gauge the perceived need for and utility of a randomized controlled trial (RCT) comparing them. METHODS: A short survey was distributed to a group of cornea specialists at the Endothelial Keratoplasty Group meeting at the American Academy of Ophthalmology meeting in November 2015. RESULTS: Thirty-three of 80 practicing surgeons present at the EKG meeting participated in the survey, yielding a response rate of 41%...
October 2016: Journal of Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28133551/large-left-ventricular-thrombus-in-a-patient-with-systemic-and-venous-thromboembolism-secondary-to-protein-c-and-s-deficiency
#20
Mohit Pahuja, Bujji Ainapurapu, Aiden Abidov
58-year-old Hispanic female presented with an altered mental status. A CT scan of the head demonstrated multiple scattered infarcts and a large right temporal lobe infarct. We also diagnosed the patient with right popliteal and femoral vein thrombosis, bilateral pulmonary embolism, and a transient right radial artery occlusion. Her 12-lead EKG showed lateral ST elevation. Emergent coronary angiogram revealed normal coronaries. Echocardiogram demonstrated a large mobile mass attached to the anterolateral free wall with overall normal contractility of the left ventricle...
2017: Case Reports in Cardiology
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