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https://www.readbyqxmd.com/read/29148124/the-safety-of-live-attenuated-influenza-vaccine-in-children-and-adolescents-2-through-17%C3%A2-years-of-age-a-vaccine-safety-datalink-study
#1
Matthew F Daley, Christina L Clarke, Jason M Glanz, Stanley Xu, Simon J Hambidge, James G Donahue, James D Nordin, Nicola P Klein, Steven J Jacobsen, Allison L Naleway, Michael L Jackson, Grace Lee, Jonathan Duffy, Eric Weintraub
PURPOSE: To evaluate the safety of live attenuated influenza vaccine (LAIV) in children 2 through 17 years of age. METHODS: The study was conducted in 6 large integrated health care organizations participating in the Vaccine Safety Datalink (VSD). Trivalent LAIV safety was assessed in children who received LAIV between September 1, 2003 and March 31, 2013. Eighteen pre-specified adverse event groups were studied, including allergic, autoimmune, neurologic, respiratory, and infectious conditions...
November 17, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/29146419/syncope-on-presentation-is-a-surrogate-for-submassive-and-massive-acute-pulmonary-embolism
#2
Hesham R Omar, Mehdi Mirsaeidi, Michael B Weinstock, Garett Enten, Devanand Mangar, Enrico M Camporesi
INTRODUCTION: There are conflicting data regarding the prognostic value of syncope in patients with acute pulmonary embolism (APE). METHODS: We retrospectively reviewed data of 552 consecutive adults with computed tomography pulmonary angiogram-confirmed APE to determine the correlates and outcome of the occurrence of syncope at the time of presentation. RESULTS: Among 552 subjects with APE (mean age 54years, 47% men), syncope occurred in 12...
November 7, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29111543/syncope-in-young-women-broadening-the-differential-diagnosis
#3
Nachiket Patel, Naila Choudhary, Christine Tompkins, Khawaja Afzal Ammar, A Jamil Tajik, Krishnaswamy Chandrasekaran, Timothy E Paterick
Syncope is defined as a sudden transient loss of consciousness (TLOC) with concomitant loss of postural tone followed by spontaneous recovery. It is a subset of a broader class of medical conditions, including postural orthostatic tachycardia syndrome (POTS), orthostatic hypotension, and neurally mediated syncope (NMS), that may result in TLOC. The overlap of these clinical conditions leads to confusion regarding syncope classification that can hinder evaluation strategies, and pose challenges for diagnosis and treatment, particularly in young women...
2017: Reviews in Cardiovascular Medicine
https://www.readbyqxmd.com/read/29110977/clinical-mimics-an-emergency-medicine-focused-review-of-syncope-mimics
#4
Diana K Coleman, Brit Long, Alex Koyfman
BACKGROUND: Syncope is an event that causes a transient loss of consciousness (LOC) secondary to global cerebral hypoperfusion. The transient nature of the event can make diagnosis in the emergency department (ED) difficult, as symptoms have often resolved by time of initial presentation. The symptoms and presentation of syncope are similar to many other conditions, which can lead to difficulty in establishing a diagnosis in the ED. OBJECTIVE: This review evaluates patients presenting with a history concerning for possible syncope, mimics of syncope, and approach to managing syncope mimics...
October 27, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29102452/syncope-and-presyncope-as-a-presenting-symptom-or-discharge-diagnosis-in-the-emergency-department-an%C3%A2-administrative-data-validation-study
#5
John A Staples, Cristian Vadeanu, Bobby Gu, Shannon Erdelyi, Herbert Chan, Jeffrey R Brubacher
Emergency department (ED) visits for syncope are common. Validation of ED administrative diagnostic coding for syncope is required before these codes can be used for health services research. We performed a retrospective multicentre chart review using a regional ED database in British Columbia. We identified adults who visited 1 of 3 high-volume urban EDs between 2010 and 2015. Cohort 1 included 350 ED visits for patients with a presenting complaint (PC) of syncope/presyncope, a discharge diagnosis (DD) of syncope and collapse, or both...
September 11, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/29098150/development-and-function-of-the-cardiac-conduction-system-in-health-and-disease
#6
David S Park, Glenn I Fishman
The generation and propagation of the cardiac impulse is the central function of the cardiac conduction system (CCS). Impulse initiation occurs in nodal tissues that have high levels of automaticity, but slow conduction properties. Rapid impulse propagation is a feature of the ventricular conduction system, which is essential for synchronized contraction of the ventricular chambers. When functioning properly, the CCS produces ~2.4 billion heartbeats during a human lifetime and orchestrates the flow of cardiac impulses, designed to maximize cardiac output...
2017: Journal of Cardiovascular Development and Disease
https://www.readbyqxmd.com/read/29093593/-duodenal-melanoma-a-case-report-and-review-of-the-literature
#7
Jorge Espinoza-Ríos, Yessenia Salas, Natalí Leiva Reyes, Ricardo Prochazka Zárate, Carlos García Encinas, Jaime Cok Garcia, José Pinto Valdivia, Eduar Bravo Paredes, Alejandro Bussalleu Rivera
We report the case of a male patient of 75 years old who presents with abdominal pain, hyporexia, early satiety, general malaise and watery stools, admitted in emergency for an episode of syncope. On physical examination, hepatomegaly of 6cm below the right costal margin was detected. CT scan showed multiple liver metastases. An upper endoscopy found multiple hyperpigmented lesions on the second portion of the duodenum. Histology and immunohistochemistry studies concluded it was duodenal melanoma. Skin and ocular examination did not reveal associated neoplastic lesions...
July 2017: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/29082864/fitness-to-drive-in-cardiovascular-disease
#8
Hermann H Klein, Udo Sechtem, Hans-Joachim Trappe
BACKGROUND: Medical students are taught little or nothing about the medical considerations related to the driving of motor vehicles. Physicians treating patients with cardiovascular disease need to acquire competence in traffic medicine in order to be able to advise them about their fitness to drive. METHODS: We present the current governmental regulations and recommendations concerning fitness to drive in patients with cardiovascular disease. We also review pertinent publications that were retrieved by a selective search in PubMed with the search terms "cardiovascular disease and traffic accidents" and "cardiovascular disease and traffic deaths" for the decade 2007-2016, as well as further publications collected by us individually...
October 13, 2017: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/29079124/laryngocardiac-reflex-a-case-report-and-review-of-the-literature
#9
REVIEW
Christian S Pingree, Jacob S Majors, Nelson S Howard, Robert L Eller
INTRODUCTION: The vagus nerve has sensory and motor function in the larynx, as well as parasympathetic function in the thorax and abdomen. Stimulation of the superior laryngeal nerve can cause reflexive bradycardia. CASE: We describe a case of a 45-year-old man with pre-syncopal symptoms while exercising, and bradycardia found during cardiology workup. Radiography and flexible laryngoscopy showed evidence of a right-sided, vascular laryngeal mass. Exercise testing before and after superior laryngeal nerve block showed reversal of the symptoms with the block...
October 24, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/29067911/syncope-in-a-young-man-role-of-purkinje-fibres-in-idiopathic-ventricular-fibrillation
#10
Claire A Martin, Laurence Nunn, Pier D Lambiase
A young man suffered cardiac arrests with polymorphic ventricular tachycardia (PVT) and ventricular fibrillation (VF) triggered by ventricular premature contractions (PVCs). The arrhythmia was resistant to anti-arrhythmics, so after ICD implantation he underwent successful ablation of the triggering VE beat, which was pace-mapped to the left posterior hemi-fascicle. We review the evidence for the role of the Purkinje network in the initiation and maintenance of PVT and VF, postulating a channelopathy as a possible underlying cause, and provide recommendations for PVC ablation...
July 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29055272/engaging-psychiatrists-in-the-diagnosis-of-psychogenic-nonepileptic-seizures-what-can-they-contribute
#11
Massimiliano Beghi, Giuseppe Erba, Cesare Maria Cornaggia, Giorgia Giussani, Elisa Bianchi, Gianni Porro, Michela Russo, Ettore Beghi
PURPOSE: To investigate if psychiatrists could predict the diagnosis of psychogenic nonepileptic seizures (PNES) by reviewing videos of seizures of various types and to compare the accuracy and the criteria leading to the diagnosis used by psychiatrists with those used by epileptologists. METHODS: Four board-certified psychiatrists were asked to review 23 videos capturing representative events of 21 unselected consecutive patients admitted to an epilepsy center for long-term video-EEG monitoring...
October 16, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29048771/catecholaminergic-polymorphic-ventricular-tachycardia-an-update
#12
REVIEW
Andrés R Pérez-Riera, Raimundo Barbosa-Barros, Marianne P C de Rezende Barbosa, Rodrigo Daminello-Raimundo, Augusto A de Lucca, Luiz C de Abreu
Catecholaminergic polymorphic ventricular tachycardia is a rare devastating lethal inherited disorder or sporadic cardiac ion channelopathy characterized by unexplained syncopal episodes, and/or sudden cardiac death (SCD), aborted SCD (ASCD), or sudden cardiac arrest (SCA) observed in children, adolescents, and young adults without structural heart disease, consequence of adrenergically mediated arrhythmias: exercise-induced, by acute emotional stress, atrial pacing, or β-stimulant infusion, even when the electrocardiogram is normal...
October 19, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/29042382/drugs-and-life-threatening-ventricular-arrhythmia-risk-results-from-the-dare-study-cohort
#13
Abigail L Coughtrie, Elijah R Behr, Deborah Layton, Vanessa Marshall, A John Camm, Saad A W Shakir
OBJECTIVES: To establish a unique sample of proarrhythmia cases, determine the characteristics of cases and estimate the contribution of individual drugs to the incidence of proarrhythmia within these cases. SETTING: Suspected proarrhythmia cases were referred by cardiologists across England between 2003 and 2011. Information on demography, symptoms, prior medical and drug histories and data from hospital notes were collected. PARTICIPANTS: Two expert cardiologists reviewed data for 293 referred cases: 130 were included...
October 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/28992800/antimalarial-induced-cardiomyopathy-a-systematic-review-of-the-literature
#14
K Tselios, M Deeb, D D Gladman, P Harvey, M B Urowitz
Background Antimalarials (AMs) are widely used in the treatment of connective tissue diseases. Their main side effect is retinal damage, while heart disease has been described in isolated cases. The aim of this study is to systematically review the existing literature on AM-induced cardiomyopathy (AMIC). Methods The PubMed database was searched for heart biopsy-confirmed AMIC cases. Information on demographics, clinical presentation, concomitant AM-related toxicity, cardiological investigations, treatment and outcome were collected...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28966307/low-serum-levels-of-eicosapentaenoic-acid-and-docosahexaenoic-acid-are-risk-factors-for-cardiogenic-syncope-in-patients-with-brugada-syndrome
#15
MULTICENTER STUDY
Shusuke Yagi, Takeshi Soeki, Ken-Ichi Aihara, Daiju Fukuda, Takayuki Ise, Muneyuki Kadota, Sachiko Bando, Tomomi Matsuura, Takeshi Tobiume, Koji Yamaguchi, Kenya Kusunose, Hirotsugu Yamada, Tetsuzo Wakatsuki, Michio Shimabukuro, Masashi Akaike, Masataka Sata
The n-3 polyunsaturated fatty acids (PUFAs), including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), have antiarrhythmic effects, possibly via modulation of the cardiac ion channels. Nevertheless, it is unknown whether low serum levels of n-3 PUFAs are risk factors for ventricular fibrillation in patients with Brugada syndrome (BrS). We retrospectively reviewed data from 62 men with BrS and evaluated their serum levels of EPA and DHA, and the risk factors for sudden cardiac death, including a history of cardiogenic syncope...
October 21, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28955396/systematic-review-of-treatment-for-trapped-thrombus-in-patent-foramen-ovale
#16
Won-Woo Seo, Sung Eun Kim, Myung-Soo Park, Jun-Hee Lee, Dae-Gyun Park, Kyoo-Rok Han, Dong-Jin Oh
BACKGROUND AND OBJECTIVES: Trapped thrombus in patent foramen ovale (PFO) is a rare complication of pulmonary embolism that may lead to tragic clinical events. The aim of this study was to identify the optimal treatment for different clinical situations in patients with trapped thrombus in a PFO by conducting a literature review. SUBJECTS AND METHODS: A PubMed database search was conducted from 1991 through 2015, and 194 patients (185 articles) with trapped thrombus in a PFO were identified...
September 2017: Korean Circulation Journal
https://www.readbyqxmd.com/read/28947223/prevalence-of-pulmonary-embolism-in-patients-presenting-with-syncope-a-systematic-review-and-meta-analysis
#17
Zardasht Oqab, Heather Ganshorn, Robert Sheldon
BACKGROUND: Syncope is a common clinical presentation and establishing an etiology is often challenging. Pulmonary embolism (PE) has been thought to be an uncommon cause but a recent report suggested otherwise. OBJECTIVE: To establish the prevalence of PE in patients presenting with syncope to the emergency department (ED) and in hospitalized patients. METHODS: We systematically searched Medline, CINAHL, EMBASE, LILACS and Web of Science with relevant keywords and MeSH headings for syncope and PE...
September 14, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28931939/survival-and-prognostic-factors-in-hypertrophic-cardiomyopathy-a-meta-analysis
#18
Qun Liu, Diandian Li, Alan E Berger, Roger A Johns, Li Gao
Hypertrophic cardiomyopathy (HCM) is a clinically and genetically heterogeneous disorder but data on survival rates are still conflicting and have not so far been quantitatively reviewed. The aim of this study is to conduct a meta-analysis of cohort studies to assess pooled survival rates and prognostic factors for survival in patients with HCM. Nineteen studies were included representing 12,146 HCM patients. The pooled 1-, 3-, 5- and 10-year survival rates were 98.0%, 94.3%, 82.2% and 75.0%, respectively. Among patients with HCM, age, NYHA functional class, family history of sudden death (FHSD), syncope, atrial fibrillation, non-sustained ventricular tachycardia (nsVT), maximum left ventricular wall thickness and obstruction were significant prognostic factors for cardiovascular death...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28901628/total-cosine-r-to-t-for-predicting-ventricular-arrhythmic-and-mortality-outcomes-a-systematic-review-and-meta-analysis
#19
Gary Tse, Mengqi Gong, Cheuk Wai Wong, Cynthia Chan, Stamatis Georgopoulos, Yat Sun Chan, Bryan P Yan, Guangping Li, Paula Whittaker, Ana Ciobanu, Sadeq Ali-Hasan-Al-Saegh, Sunny H Wong, William K K Wu, George Bazoukis, Konstantinos Lampropoulos, Wing Tak Wong, Lap Ah Tse, Adrian M Baranchuk, Konstantinos P Letsas, Tong Liu
BACKGROUND: The total cosine R-to-T (TCRT), a vectorcardiographic marker reflecting the spatial difference between the depolarization and repolarization wavefronts, has been used to predict ventricular tachycardia/fibrillation (VT/VF) and sudden cardiac death (SCD) in different clinical settings. However, its prognostic value has been controversial. OBJECTIVE: This systematic review and meta-analysis evaluated the significance of TRCT in predicting arrhythmic and/or mortality endpoints...
September 12, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28882124/phenotypic-expressions-of-hereditary-transthyretin-ala97ser-related-amyloidosis-attr-in-taiwanese
#20
Hui-Ching Hsu, Ming-Feng Liao, Jung-Lung Hsu, Ai-Lun Lo, Hung-Chou Kuo, Rong-Kuo Lyu, Victor Chien-Chia Wu, Chih-Wei Wang, Long-Sun Ro
BACKGROUND: The disease course and early signs specific to ATTR Ala97Ser, the most common endemic mutation in Taiwan, have not been well described. Since new medications can slow down the rate of disease progression, the early diagnosis of this heterogeneous and fatal disease becomes critical. METHODS: We retrospectively reviewed the characteristics of genetically confirmed ATTR Ala97Ser patients at a tertiary referral medical center. RESULTS: Eight patients from 7 different families were enrolled (61...
September 7, 2017: BMC Neurology
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