Checkerboard reversal pattern and flash VEPs in dialysed and non-dialysed subjects

Electroencephalography and Clinical Neurophysiology
P M RossiniA Albertazzi

Abstract

In forty-three patients suffering from chronic renal failure (CRF; 32 non-dialysed, 11 dialysed) the flash VEP and the pattern VEP to different spatial (7.5', 15', 30', 60' checks) and temporal (2, 10, 20, 40 Hz) frequencies were investigated. Abnormally delayed flash VEPs were obtained in 53.6% of the cases; transient pattern VEPs had a delayed major positive deflection in 46% of the tested eyes and altered steady-state response in 58% with a total of 65% abnormal responses. Chronically dialysed subjects showed higher levels of altered VEPs for both the techniques. The shorter latencies normally observed with coarser checks in healthy people were maintained in CRF patients, resulting in an abnormal prolongation of the shift between high and low spatial frequencies. Higher statistical correlations linked the pattern VEP with blood urea nitrogen (P less than 0.001) and other renal chemistry than the flash VEP. These and other features could be ascribed to a specific involvement of a maculo-calcarine channel devoted to 'detailed' vision and suggest the usefulness of this method to provide a tool for the early detection of an encephalopathic uraemia.

References

Jul 1, 1976·Kidney International·A I Arieff, R Guisado
Jul 28, 1977·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·D H Hubel, T N Wiesel
Oct 1, 1975·Electroencephalography and Clinical Neurophysiology·J R BourneH E Ginn
Feb 1, 1978·Electroencephalography and Clinical Neurophysiology·E G LewisE C Beck
May 1, 1978·Electroencephalography and Clinical Neurophysiology·B HamelP E Teschan
Nov 1, 1979·Electroencephalography and Clinical Neurophysiology·P M RossiniC Caltagirone
Jan 22, 1976·The New England Journal of Medicine·N H Raskin, R A Fishman
Jun 1, 1979·Kidney International·P E TeschanW K Vaughn
Jan 1, 1979·Vision Research·A Vassilev, D Strashimirov
Jan 1, 1977·Vision Research·D M Parker, E A Salzen
Jan 1, 1977·Vision Research·G E Meyer, M C Salinsky
Jan 1, 1976·Vision Research·U LuppW Wolf
Feb 1, 1971·Electroencephalography and Clinical Neurophysiology·K SatoY Tagawa
Jan 1, 1972·Transactions - American Society for Artificial Internal Organs·A C AlfreyJ H Holmes
Jul 1, 1973·The Journal of Physiology·J J Kulikowski, D J Tolhurst
Apr 30, 1970·The New England Journal of Medicine·J P Merrill, C L Hampers
Jan 1, 1971·The Journal of Clinical Investigation·C D ArnaudT Littledike
Jan 1, 1980·Journal of Neurology·H C Chui, A R Damasio
May 1, 1980·Electroencephalography and Clinical Neurophysiology·J R Hughes
Aug 1, 1981·Italian Journal of Neurological Sciences·P M RossiniA Albertazzi
Sep 1, 1980·Brain : a Journal of Neurology·L Frisén
May 1, 1954·Electroencephalography and Clinical Neurophysiology·R VIZIOLI, A GIANCOTTI

❮ Previous
Next ❯

Citations

Nov 1, 1983·Electroencephalography and Clinical Neurophysiology·M KubaJ Erben
Jun 1, 1984·Electroencephalography and Clinical Neurophysiology·P M RossiniM Basciani
Feb 1, 1987·Electroencephalography and Clinical Neurophysiology·J J BrownH W Sollinger
May 29, 1999·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Y TomodaA Mitsudome
Feb 1, 1991·Acta Neurologica Scandinavica·Y L YuY W Chan
Jan 1, 1994·The British Journal of Ophthalmology·B G JeffreyA Kriss
May 1, 1991·Electroencephalography and Clinical Neurophysiology·S Kurita-TashimaM Kato
Jan 1, 1985·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·A DucatiR Villani
Jan 1, 1984·European Archives of Psychiatry and Neurological Sciences·G NiemannG A Müller
Apr 1, 1984·Clinical EEG (electroencephalography)·D E ShearerR E Dustman
Mar 12, 2004·Nephrology·Ulver DericiMusa Bali
Feb 11, 2021·Saudi Journal of Kidney Diseases and Transplantation : an Official Publication of the Saudi Center for Organ Transplantation, Saudi Arabia·H K AggarwalShailesh Bhatia
Dec 1, 1986·Kidney International·J T MarshA R Nissenson

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.