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Related Concept Videos

Vascular Spasm01:16

Vascular Spasm

The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last for...
Cytotoxic Edema: Pathophysiology01:21

Cytotoxic Edema: Pathophysiology

Cytotoxic edema is a form of cerebral edema characterized by intracellular swelling of neurons, astrocytes, and other glial cells. It develops when the mechanisms responsible for maintaining ionic gradients across the cell membrane become impaired. Under normal physiological conditions, the sodium–potassium ATPase actively transports sodium ions out of the cell and potassium ions into the cell, preserving osmotic balance and enabling electrical signaling. This pump requires a continuous supply...
Inflammatory Response I: Vascular and Cellular01:30

Inflammatory Response I: Vascular and Cellular

The inflammatory response is the body's defense against infection, injury, or irritation from bacteria, trauma, toxins, or heat. Inflammation helps locate and destroy pathogens and remove damaged tissue elements to heal the body. During this initial phase, fluid, blood products, and nutrients migrate to the injured area, resulting in redness, heat, swelling, ache, and loss of function. Moreover, signs of systemic inflammation include fever, increased WBC count, malaise, anorexia, nausea,...
Pericarditis I: Introduction01:22

Pericarditis I: Introduction

Pericarditis is defined as the inflammation of the pericardium, the thin, sac-like membrane surrounding the heart. This condition can cause significant chest pain and other symptoms, often necessitating medical intervention. The pericardium has two layers: the inner visceral layer and the outer parietal layer, separated by a small amount of fluid that reduces friction during heartbeats.Types of PericarditisPericarditis can be classified into several types based on the duration and nature of the...
Nephrotic Syndrome I : Introduction01:24

Nephrotic Syndrome I : Introduction

Nephrotic Syndrome is a chronic kidney disorder defined by clinical findings such as severe proteinuria, hypoalbuminemia, hyperlipidemia, and edema. These symptoms result from damage to the glomeruli, the kidney’s filtering units, increasing their permeability to proteins.Definition and Meaning:Proteinuria, defined as the loss of more than 3.5 grams of protein per day in adults, is a crucial feature of nephrotic syndrome. This condition is often accompanied by edema, the accumulation of fluid...
Myocarditis I: Introduction01:21

Myocarditis I: Introduction

Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...

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Related Experiment Video

Updated: Jul 7, 2026

The ex vivo Isolated Skeletal Microvessel Preparation for Investigation of Vascular Reactivity
07:00

The ex vivo Isolated Skeletal Microvessel Preparation for Investigation of Vascular Reactivity

Published on: April 28, 2012

Single-organ vasculitis.

José Hernández-Rodríguez1, Eamonn S Molloy, Gary S Hoffman

  • 1Center for Vasculitis Care and Research, Department of Rheumatic and Immunologic Diseases, Cleveland Clinic, Ohio 44195, USA. jhernan@clinic.ub.es

Current Opinion in Rheumatology
|February 19, 2008
PubMed
Summary
This summary is machine-generated.

Single-organ vasculitis, a rare condition, often presents focally and can be cured by removing the affected lesion. Diagnosis requires excluding systemic disease, with prognosis generally excellent.

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Orthotopic Aortic Transplantation: A Rat Model to Study the Development of Chronic Vasculopathy
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Orthotopic Aortic Transplantation: A Rat Model to Study the Development of Chronic Vasculopathy

Published on: December 4, 2010

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Last Updated: Jul 7, 2026

The ex vivo Isolated Skeletal Microvessel Preparation for Investigation of Vascular Reactivity
07:00

The ex vivo Isolated Skeletal Microvessel Preparation for Investigation of Vascular Reactivity

Published on: April 28, 2012

Orthotopic Aortic Transplantation: A Rat Model to Study the Development of Chronic Vasculopathy
08:32

Orthotopic Aortic Transplantation: A Rat Model to Study the Development of Chronic Vasculopathy

Published on: December 4, 2010

Area of Science:

  • Rheumatology
  • Vascular Medicine
  • Pathology

Background:

  • Single-organ vasculitis is a rare condition distinct from systemic vasculitis.
  • It primarily affects specific organs such as the abdomen, genitourinary tract, breast, and aorta.
  • Understanding its unique presentation and prognosis is crucial for patient management.

Purpose of the Study:

  • To critically analyze single-organ vasculitis, focusing on curative surgical intervention.
  • To recommend diagnostic, follow-up, and treatment strategies.
  • To differentiate focal vasculitis from systemic forms.

Main Methods:

  • Review of case reports and small series of single-organ vasculitis.
  • Analysis of clinical, serological, and histopathological features.
  • Evaluation of diagnostic criteria and prognostic indicators.

Main Results:

  • Focal single-organ vasculitis has a generally excellent prognosis, with surgical resection potentially curative.
  • Disease expression and prognosis differ significantly from systemic vasculitis.
  • Predictive features for disease extent exist, but localized disease can evolve into systemic forms.
  • Severe complications include ischemia, hemorrhage, aortic dissection, or rupture.

Conclusions:

  • Diagnosis of single-organ vasculitis is presumptive, necessitating exclusion of systemic vasculitis.
  • Clinical, laboratory, and histopathological findings aid in surveillance strategy development.
  • Continued monitoring is essential to rule out progression to systemic disease.