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Related Concept Videos

Diabetic Neuropathy01:22

Diabetic Neuropathy

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DefinitionDiabetic neuropathy is nerve damage caused by long-standing diabetes mellitus. It results directly from prolonged high blood sugar levels.PathophysiologyThe pathophysiology of diabetic neuropathy involves both metabolic and vascular disturbances triggered by chronic hyperglycemia.Metabolic injury: Elevated glucose levels activate the polyol pathway within nerve cells, leading to the accumulation of sorbitol and fructose. This increases oxidative stress, disrupts normal nerve...
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Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...
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Diabetic Foot Ulcer01:31

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Definition A diabetic foot ulcer (DFU) is a chronic, non-healing wound that develops in individuals with diabetes. It typically occurs on pressure-bearing areas such as the heel, metatarsal heads, or hallux, and carries a high risk of infection and amputation.Pathophysiology • The development of DFUs can be explained by four interconnected mechanisms: neuropathy, ischemia, infection, and impaired wound healing. • Neuropathy is the most common factor. Sensory...
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Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

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Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
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Local anesthetics (LAs) block the sodium channels of nerve trunks, sensory nerve endings, and neuromuscular junctions. Although LAs can block all kinds of nerves, the sensitivity of nerve fibers differs according to nerve types and structures. LAs are known to block myelinated fibers faster than unmyelinated ones. Also, they block pain or sensory neurons at low concentrations without affecting the motor neurons involved in muscle contractions. This helps relieve labor pain without affecting the...
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An Ultrasonic Tool for Nerve Conduction Block in Diabetic Rat Models
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Electrophysiologic testing in diabetic neuropathy.

Bruce Perkins1, Vera Bril2

  • 1Division of Endocrinology and Metabolism, Department of Medicine, University Health Network, University of Toronto, Toronto, Canada.

Handbook of Clinical Neurology
|November 21, 2014
PubMed
Summary

Electrophysiologic studies offer objective insights into nerve and muscle function, aiding in diagnosing and monitoring diabetes and prediabetes. This testing is valuable for managing diabetic neuropathy, despite its limitations.

Keywords:
Nerve conduction studiesdiabetic neuropathydiagnosiselectromyographyelectrophysiologypolyneuropathy

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Area of Science:

  • Neurology
  • Endocrinology
  • Medical Diagnostics

Background:

  • Electrophysiologic studies provide objective data on nerve and muscle function.
  • This data is crucial for diagnosing diseases and monitoring their progression.
  • Understanding electrophysiologic changes is key in managing metabolic disorders.

Purpose of the Study:

  • To describe electrophysiologic function changes in prediabetes and diabetes.
  • To discuss the utility of electrophysiologic testing in diabetic patients.
  • To evaluate the strengths and limitations of electrophysiology in this context.

Main Methods:

  • Review of electrophysiologic findings in prediabetes and diabetes.
  • Analysis of diagnostic and monitoring applications of electrophysiology.
  • Discussion of the benefits and drawbacks of electrophysiologic testing.

Main Results:

  • Electrophysiology reveals specific functional alterations in nerves and muscles in prediabetes and diabetes.
  • Testing aids in early diagnosis and tracking disease progression.
  • The utility of electrophysiology is significant but requires consideration of its limitations.

Conclusions:

  • Electrophysiologic studies are essential for objective assessment of nerve and muscle health in diabetes and prediabetes.
  • This testing method offers valuable insights for clinical management.
  • A balanced understanding of electrophysiology's strengths and weaknesses is necessary for optimal patient care.