Read by QxMD icon Read


Miran Brvar, Ming Yin Chan, Andrew H Dawson, Richard R Ribchester, Michael Eddleston
INTRODUCTION: Treatment of acute organophosphorus or carbamate insecticide self-poisoning is often ineffective, with tens of thousands of deaths occurring every year. Researchers have recommended the addition of magnesium sulfate or calcium channel blocking drugs to standard care to reduce acetylcholine release at cholinergic synapses. OBJECTIVE: We aimed to review systematically the evidence from preclinical studies in animals exposed to organophosphorus or carbamate insecticides concerning the efficacy of magnesium sulfate and calcium channel blocking drugs as therapy compared with placebo in reducing mortality or clinical features of poisoning...
March 20, 2018: Clinical Toxicology
Magdalena Martinez-Losa, Tara E Tracy, Keran Ma, Laure Verret, Alexandra Clemente-Perez, Abdullah S Khan, Inma Cobos, Kaitlyn Ho, Li Gan, Lennart Mucke, Manuel Alvarez-Dolado, Jorge J Palop
Inhibitory interneurons regulate the oscillatory rhythms and network synchrony that are required for cognitive functions and disrupted in Alzheimer's disease (AD). Network dysrhythmias in AD and multiple neuropsychiatric disorders are associated with hypofunction of Nav1.1, a voltage-gated sodium channel subunit predominantly expressed in interneurons. We show that Nav1.1-overexpressing, but not wild-type, interneuron transplants derived from the embryonic medial ganglionic eminence (MGE) enhance behavior-dependent gamma oscillatory activity, reduce network hypersynchrony, and improve cognitive functions in human amyloid precursor protein (hAPP)-transgenic mice, which simulate key aspects of AD...
March 15, 2018: Neuron
Sven Vanneste, Jae-Jin Song, Dirk De Ridder
Thalamocortical dysrhythmia (TCD) is a model proposed to explain divergent neurological disorders. It is characterized by a common oscillatory pattern in which resting-state alpha activity is replaced by cross-frequency coupling of low- and high-frequency oscillations. We undertook a data-driven approach using support vector machine learning for analyzing resting-state electroencephalography oscillatory patterns in patients with Parkinson's disease, neuropathic pain, tinnitus, and depression. We show a spectrally equivalent but spatially distinct form of TCD that depends on the specific disorder...
March 16, 2018: Nature Communications
Narjeet S Khurmi, Yu-Hui Chang, D Eric Steidley, Andrew L Singer, Winston R Hewitt, Kunam S Reddy, Adyr A Moss, Amit K Mathur
BACKGROUND: Cardiovascular disease (CVD) is a leading cause of post-liver transplant death, and variable care patterns may affect outcomes. We aimed to describe epidemiology and outcomes of inpatient CVD care across U.S. hospitals. METHODS: Using a merged dataset from the 2002-2011 Nationwide Inpatient Sample and the American Hospital Association Annual Survey, we evaluated liver transplant patients admitted primarily with myocardial infarction (MI), stroke (CVA), congestive heart failure (CHF), dysrhythmias, cardiac arrest (CA), or malignant hypertension...
March 15, 2018: Liver Transplantation
Erica Flores, Mayur Patel, Geoffery Orme, Wilber Su
This case details the successful implementation of a leadless pacemaker device in a patient with multiple venous occlusions and an IVC filter. As the incidence of IVC filters increases in patients with dysrhythmias, further investigations are required to determine the risk and safety of leadless pacemaker placement in this population.
March 2018: Clinical Case Reports
Nehat Baftiu, Islam Krasniqi, Kastriot Haxhirexha, Rudin Domi
BACKGROUND: Tracheal extubations may be performed before or after awakening from anaesthesia. The advantage of extubation during anaesthesia may avoid all the unpleasant effects of fully awake extubation such as severe hypertension and tachycardia, malignant dysrhythmias, myocardial ischemia laryngospasm, and cough induced high intraocular and intracranial pressure. AIM: To show the current practice of performing extubations in Kosovo, as well as the advantage and disadvantage in performing this procedure in an awake patient or inpatient in light anaesthesia...
February 15, 2018: Open Access Macedonian Journal of Medical Sciences
Jade A U Tamatea, Marianne S Elston, John V Conaglen
BACKGROUND: As thyrotoxicosis is a risk factor for atrial fibrillation, current guidelines recommend measuring a thyroid-stimulating hormone level in patients with this disorder. Hyperthyroidism may also be associated with other heart diseases including cardiac ischaemia and cardiac failure. Currently, the prevalence of thyrotoxicosis in cardiac admissions in the absence of a rhythm disorder is unknown. AIMS: The aims of this study were: 1) to calculate the prevalence of admissions for thyrotoxicosis-associated cardiac disease, 2) determine the type of cardiac disease i...
November 21, 2017: Heart, Lung & Circulation
Subir Bhatia, Alan Sugrue, Samuel Asirvatham
Atrial fibrillation is the most common cardiac dysrhythmia encountered in the primary care setting. Although a rate control strategy is pursued by physicians for the initial treatment of atrial fibrillation, the efficacy of a rhythm control approach is often undervalued despite offering effective treatment options. There are many pharmacological therapies available to patients, with drug choice often dictated by safety concerns (toxicities and proarrhythmic adverse effects) as well as patient characteristics and comorbidities...
March 2018: Mayo Clinic Proceedings
Daniel W Fisher, Phillip Luu, Neha Agarwal, Jonathan E Kurz, Dane M Chetkovich
Hyperpolarization-activated Cyclic Nucleotide-gated (HCN) channels are important regulators of excitability in neural, cardiac, and other pacemaking cells, which are often altered in disease. In mice, loss of HCN2 leads to cardiac dysrhythmias, persistent spike-wave discharges similar to those seen in absence epilepsy, ataxia, tremor, reduced neuropathic and inflammatory pain, antidepressant-like behavior, infertility, and severely restricted growth. While many of these phenotypes have tissue-specific mechanisms, the cause of restricted growth in HCN2 knockout animals remains unknown...
2018: PloS One
Fazle Rabbi Chowdhury, Md Mustafezur Rahman, Parash Ullah, Abdul Mumith Ruhan, Md Shafiqul Bari, M M Jahangir Alam, Md Moyeen Uddin, Shomik Maruf, Md Ismail Patwary, Michael Eddleston
BACKGROUND: Treatment of acute organophosphorus (OP) insecticide poisoning is difficult, with many patients dying despite best care. Pre-clinical studies have shown benefit from salbutamol, possibly due speeding alveolar fluid clearance or reducing bronchoconstriction. In this small pilot dose-response study, we aimed to explore whether addition of nebulized salbutamol to standard care might improve resuscitation. METHODS: We performed a single-blind phase II study comparing the effect of two different doses of nebulized salbutamol versus saline placebo, in addition to standard treatment...
February 20, 2018: Clinical Toxicology
Jack Barton, Simon D Kyle, Filippo Varese, Steven H Jones, Gillian Haddock
The present review aimed to 1) identify what sleep disturbances co-occur alongside psychotic-like, dissociative and hypomanic experiences; 2) assess the strength of potential associations between the severity of sleep disturbances and of the experiences studied; and 3) appraise evidence for a causal link. MedLine and PsycInfo were searched and 44 studies were deemed eligible. Results showed that insomnia was associated with all individual psychotic-like, dissociative and hypomanic experiences reviewed (effect size range: small-to-large)...
February 13, 2018: Neuroscience and Biobehavioral Reviews
Christie Sun, Jessica A Brice, Richard F Clark
BACKGROUND: Loperamide has been increasing in popularity recently for its effects separate from treatment of diarrhea. In large doses or in combination with other agents, it can lead to desirable effects in the central nervous system. However, cardiotoxicity has been reported with its abuse. CASE REPORT: A 49-year-old male who had been chronically abusing loperamide was found to have Brugada-like changes on his electrocardiogram (ECG). He had no other clinical symptoms associated with Brugada syndrome and did not have similar findings on previous ECGs...
February 10, 2018: Journal of Emergency Medicine
Kathleen T Hickey, Teresa C Riga, Shazia A Mitha, Meghan J Reading
Atrial fibrillation (AF) is the most common dysrhythmia encountered in the United States. Symptoms may be similar to those of other cardiac conditions, which can delay the timely detection, diagnosis, and management of AF. This article provides an overview of AF and modalities used in remote monitoring.
March 12, 2018: Nurse Practitioner
Randell K Wexler, Adam Pleister, Subha V Raman
Palpitations are a common problem in the ambulatory primary care setting, and cardiac causes are the most concerning etiology. Psychiatric illness, adverse effects of prescription and over-the-counter medications, and substance use should also be considered. Distinguishing cardiac from noncardiac causes is important because of the risk of sudden death in those with an underlying cardiac etiology. A thorough history and physical examination, followed by targeted diagnostic testing, can distinguish cardiac conditions from other causes of palpitations...
December 15, 2017: American Family Physician
Brit Long, Jennifer Robertson, Alex Koyfman, Kurian Maliel, Justin R Warix
BACKGROUND: Atrial fibrillation (AF) is an abnormal heart rhythm which may lead to stroke, heart failure, and death. Emergency physicians play a role in diagnosing AF, managing symptoms, and lessening complications from this dysrhythmia. OBJECTIVE: This review evaluates recent literature and addresses ED considerations in the management of AF. DISCUSSION: Emergency physicians should first assess patient clinical stability and evaluate and treat reversible causes...
January 30, 2018: American Journal of Emergency Medicine
Urban Wiklund, Amir Kadkhodaee, Kennet Andersson, Ole B Suhr, Rolf Hörnsten
BACKGROUND: The heart rate (HR) response to paced deep breathing (DB) is a common test of cardiac autonomic function, where high heart rate variability (HRV) is considered to reflect normal autonomic function. We evaluated the DB test in patients with hereditary transthyretin amyloid (ATTRm) amyloidosis, where autonomic dysregulation and atrial arrhythmias are common. METHODS: Paced DB was performed during one minute (six breaths/min) in 165 recordings in adult ATTRm amyloidosis patients with the TTR Val30Met mutation, 42 hypertrophic cardiomyopathy (HCM) patients and 211 healthy subjects...
February 2, 2018: Amyloid: the International Journal of Experimental and Clinical Investigation
Orli Silverberg, Alison L Park, Eyal Cohen, Deshayne B Fell, Joel G Ray
Importance: Women with an infant with preterm birth (PTB) or who was severely small for gestational age (SGA) are at higher future risk of premature cardiovascular disease and related death. Objective: To determine the risk of cardiac disease or death among women with an infant with both PTB and SGA. Design, Setting, and Participants: This population-based cohort study used electronic health records from the province of Ontario, Canada, where health care is universally available, between April 1, 2002, and March 31, 2016...
January 31, 2018: JAMA Cardiology
Susanne DeMeester, Rebecca A Hess, Bradley Hubbard, Kara LeClerc, Jane Ferraro, Jeremy J Albright
OBJECTIVES: Atrial fibrillation (AFib) is the most common dysrhythmia in the United States. Patients seen in the emergency department (ED) in rapid AFib are often started on intravenous rate controlling agents and admitted for several days. Although underlying and triggering illnesses must be addressed, AFib, intrinsically, is rarely life threatening and can often be safely managed in an outpatient setting. At our academic community hospital, we implemented an algorithm to decrease hospital admissions for individuals presenting with a primary diagnosis of AFib...
January 31, 2018: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
Sahin Iscan, Bortecin Eygi, Yuksel Besir, Ismail Yurekli, Habib Cakir, Levent Yilik, Orhan Gokalp, Ali Gurbuz
Atrial fibrillation (AF) is a cardiac dysrhythmia commonly seen in clinical practice especially after cardiac surgery. It is associated with increased morbidity and mortality for the patients. The pathogenesis of AF is not exactly understood yet, but there is growing data about the relationship between AF and inflammation. Cardiac surgery itself is a big source for inflammation. It causes major surgical trauma, ischemia/reperfusion injury, hypothermia, low arterial pressure, and the equipment of cardiopulmonary bypass makes a large foreign surface thus it activates inflammatory response...
January 31, 2018: Current Pharmaceutical Design
Terence P Mayne, Niranchan Paskaranandavadivel, Jonathan C Erickson, Gregory OGrady, Leo K Cheng, Timothy R Angeli
OBJECTIVE: High-resolution mapping of gastrointestinal (GI) slow waves is a valuable technique for research and clinical applications. Interpretation of high-resolution GI mapping data relies on animations of slow wave propagation, but current methods remain as rudimentary, pixelated electrode activation animations. This study aimed to develop improved methods of visualizing high-resolution slow wave recordings that increases ease of interpretation. METHODS: The novel method of "wavefront-orientation" interpolation was created to account for the planar movement of the slow wave wavefront, negate any need for distance calculations, remain robust in atypical wavefronts (i...
February 2018: IEEE Transactions on Bio-medical Engineering
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"