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Related Concept Videos

Diabetic Foot Ulcer01:31

Diabetic Foot Ulcer

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 neuropathy reduces pain perception,...
Complications of Diabetes Mellitus01:22

Complications of Diabetes Mellitus

Diabetes mellitus is a chronic metabolic disorder characterized by persistent hyperglycemia due to insulin deficiency, resistance, or both. Prolonged hyperglycemia disrupts metabolic homeostasis and leads to acute and chronic complications.Acute ComplicationsAcute complications result from sudden metabolic imbalance.Diabetic ketoacidosis (DKA) mainly appears in type 1 diabetes but may also develop in type 2 diabetes, particularly under extreme stress. It arises from severe insulin deficiency,...
Diabetic Retinopathy01:27

Diabetic Retinopathy

DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...
Diabetic Neuropathy01:22

Diabetic Neuropathy

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...
Diabetic Nephropathy01:28

Diabetic Nephropathy

Definition Diabetic nephropathy is a chronic kidney complication that results from prolonged hyperglycemia.Prevalence It is the most common cause of chronic kidney disease (CKD) and end-stage renal disease (ESRD) worldwide, affecting up to half of individuals with diabetes.Pathophysiology • Sustained hyperglycemia triggers multiple hemodynamic and metabolic changes in the kidney. • Early in the disease, increased renal blood flow and glomerular hyperfiltration occur due to afferent arteriolar...
Type I Diabetes III: Clinical Manifestations01:19

Type I Diabetes III: Clinical Manifestations

Type 1 diabetes mellitus typically presents with rapid-onset symptoms due to the body’s inability to utilize glucose in the absence of insulin. Since insulin is required for glucose uptake into cells, its deficiency leads to hyperglycemia and cellular energy deprivation, resulting in characteristic clinical features.Polyuria and PolydipsiaOne of the earliest, most prominent symptoms is polyuria (excessive urination). When blood glucose concentrations rise above the renal threshold, the kidneys...

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Related Experiment Videos

[Update on diabetic foot infections].

Renato Pascale1, Mario Vitale, Silvano Esposito

  • 1UOD Medicina Infettivologica, Dipartimento di Medicina e Chirurgia, Università di Salerno, Italy.

Le Infezioni in Medicina
|September 21, 2012
PubMed
Summary

Diabetic foot ulcers are a common complication, often leading to lower limb amputation. Early prevention and effective treatment, guided by infectious disease specialists, are crucial to reduce amputation rates.

Related Experiment Videos

Area of Science:

  • Endocrinology and Metabolism
  • Infectious Diseases
  • Vascular Surgery

Context:

  • Diabetes Mellitus affects over 346 million people globally.
  • Diabetic foot ulcers (DFUs) impact 15% of patients, frequently leading to severe complications.
  • Infections in DFUs are a primary cause of lower limb amputations in Western countries.

Purpose:

  • To review the latest international literature on infected diabetic foot ulcers (DFUs).
  • To highlight the multifactorial nature of DFUs and the critical role of infectious disease specialists.
  • To emphasize the importance of understanding DFU microbiology for effective, long-term antibiotic therapy.

Summary:

  • This review synthesizes current knowledge on DFU epidemiology, etiology, classification, diagnosis, microbiology, and treatment.
  • It underscores the complexity of DFUs, necessitating a multidisciplinary approach.
  • The review stresses the essential contribution of infectious disease expertise in managing DFU infections and promoting healing.

Impact:

  • Reducing the high rates of lower limb amputations associated with infected DFUs.
  • Improving patient outcomes through enhanced understanding and management of DFU infections.
  • Guiding the development of targeted therapeutic strategies for complex DFU cases.