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neurology

Link: posterior dominant rhythm

clinical significance

The presence of a normal reactive posterior dominant rhythm is indicative of a well-functioning brain and automatically rules out all sorts of pathology. In a patient with altered mental status where the differential includes seizures, encephalopathy, or something psychogenic, the presence of a normal reactive PDR is a very strong argument against the first two.

A wealth of EEG information can be found, in addition to the above at http://eegatlas-online.com/index.php/alphabetical-index/posterior-dominant-rhythm-guest.

This website is not a substitute for independent professional advice. Nothing contained in this site is intended to be used as medical advice. No articles, personal accounts, or other content are intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professionals advice.

Link: Positions and brain function

Functional Analysis of MINI-Q II positions, and Use with Live Z-scores

A Window  to 4-channel EEG Assessment and Training 

Thomas F. Collura, Ph.D. 

This text describes the positioning of EEG electrodes and is a user-guide. It provides some interesting information on the regions associated with EEG tracing.

The full text can be found at http://www.brainm.com/help/Positions_and_brain_function.htm.

This website is not a substitute for independent professional advice. Nothing contained in this site is intended to be used as medical advice. No articles, personal accounts, or other content are intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professionals advice.

Video: Meningitis and Encephalitis: Causes, Symptoms & Treatment


This website is not a substitute for independent professional advice. Nothing contained in this site is intended to be used as medical advice. No articles, personal accounts, or other content are intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professionals advice.

Link: Psychiatric Presentations of Autoimmune Encephalopathies

While a biological basis for numerous psychiatric illnesses has become increasingly appreciated, few mechanistic hypotheses have gripped psychiatric researchers as strongly as an autoimmune basis for behavioral abnormalities.

The full article from Psychiatric Times can be found at http://www.psychiatrictimes.com/neuropsychiatry/psychiatric-presentations-autoimmune-encephalopathies.

 

This website is not a substitute for independent professional advice. Nothing contained in this site is intended to be used as medical advice. No articles, personal accounts, or other content are intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professionals advice.

Link: Neurological disorders: a public health approach

This informative document discusses public health concerns regarding a few common neurological conditions including dementia and epilepsy. The full document can be found on their website, www.who.int.

© World Health Organisation

This website is not a substitute for independent professional advice. Nothing contained in this site is intended to be used as medical advice. No articles, personal accounts, or other content are intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professionals advice.

Link PDF: Autoantibodies associated with diseases of the CNS: new developments and future challenges

Several CNS disorders associated with specifi c antibodies to ion channels, receptors, and other synaptic proteins have been recognised over the past 10 years, and can be often successfully treated with immunotherapies. Antibodies to components of voltage-gated potassium channel complexes (VGKCs), NMDA receptors (NMDARs), AMPA receptors (AMPARs), GABA type B receptors (GABABRs), and glycine receptors (GlyRs) can be identifi ed in patients and are associated with various clinical presentations, such as limbic encephalitis and complex and diff use encephalopathies. These diseases can be associated with tumours, but they are more often non-paraneoplastic, and antibody assays can help with diagnosis. The new specialty of immunotherapy-responsive CNS disorders is likely to expand further as more antibody targets are discovered. Recent fi ndings raise many questions about the classifi cation of these diseases, the relation between antibodies and specifi c clinical phenotypes, the relative pathological roles of serum and intrathecal antibodies, the mechanisms of autoantibody generation, and the development of optimum treatment strategies.

This article by Angela Vincent, Christian Bien, Sarosh Irani, and Patrick Waters talks about conditions of the CNS caused by autoantibodies. The full paper can be found at ResearchGate.net. This was posted to thread https://www.facebook.com/groups/251477975360/permalink/10154711712105361/ on 27th October, 2014 by G.D.

Copyright © The Lancet 2011 | Authors Angela Vincent, Christian Bien, Sarosh Irani, and Patric Waters

This website is not a substitute for independent professional advice. Nothing contained in this site is intended to be used as medical advice. No articles, personal accounts, or other content are intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professionals advice.

Link: Can you Walk and Chew Gum at the Same Time?

Ever heard the expression « bet you can’t walk and chew gum at the same time? » I am not sure I really appreciated the full extent of its meaning until just last week.

At the 3rd International Congress on Gait and Mental Function in Washington DC in February, a series of new research studies were unveiled. One such study, described by Prof. Jeffrey M. Hausdorff , Director of Tel-Aviv Sourasky Medical Center, was on the topic of dual-tasking while waking. That is, walking and doing one other thing at the same time – like talking, observing the trees and flowers or other tasks that require a little attention.

Posted on by T.A.O. on 30th August 2014 to the tread https://www.facebook.com/groups/251477975360/permalink/10154491879730361/.

This website is not a substitute for independent professional advice. Nothing contained in this site is intended to be used as medical advice. No articles, personal accounts, or other content are intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professionals advice.

Link: Assessment of altered mental status

Altered mental status (AMS) is a general term used to describe various disorders of mental functioning that can range from slight confusion to coma. [1] Given the vagueness of the term, it is imperative to understand its key components before considering a differential diagnosis. Fundamentally, mental status is a combination of the patient’s level of consciousness (i.e., attentiveness) and cognition (i.e., mental processes or thoughts); patients may have disorders of one or both. [2] For example, patients with meningitis may have impaired consciousness (i.e., altered sensorium, decreased attentiveness) with intact cognition, whereas patients with dementia may have a normal level of consciousness with impaired cognition. However, more frequently, patients exhibit altered levels of consciousness plus cognition: for example, with delirium, a relatively common and sometimes fatal cause of AMS.

This article discusses “altered mental status” which is often listed as a symptom of encephalopathy. The full article can be found at http://bestpractice.bmj.com/best-practice/monograph/843.html.

This website is not a substitute for independent professional advice. Nothing contained in this site is intended to be used as medical advice. No articles, personal accounts, or other content are intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professionals advice.

Video: What is Mild Cognitive Impairment?

This website is not a substitute for independent professional advice. Nothing contained in this site is intended to be used as medical advice. No articles, personal accounts, or other content are intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professionals advice.

Video: Mild Cognitive Impairment – Ten Years Later

You can read the full test of the study he talks about at http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3081688/.

This website is not a substitute for independent professional advice. Nothing contained in this site is intended to be used as medical advice. No articles, personal accounts, or other content are intended to be used to diagnose, treat, cure or prevent any disease, nor should it be used for therapeutic purposes or as a substitute for your own health professionals advice.