Churg-Strauss syndrome
Christian Pagnoux1, Philippe Guilpain, Loïc Guillevin
1Department of Internal Medicine, French Vasculitis Study Group, Centre de Référence Vascularites et Sclérodermies, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, Université Paris-Descartes, Paris, France. christian.pagnoux@cch.aphp.fr
Current Opinion in Rheumatology
|December 5, 2006
Summary
Churg-Strauss syndrome, a vasculitis causing asthma and hypereosinophilia, may have distinct subtypes. Antineutrophil cytoplasmic autoantibodies influence clinical features, guiding potential personalized therapies.
Area of Science:
- Rheumatology
- Immunology
- Pulmonology
Background:
- Churg-Strauss syndrome is a small-vessel necrotizing vasculitis associated with asthma, lung infiltrates, granulomas, and hypereosinophilia.
- Understanding its pathogenesis and optimal therapeutic management is crucial for patient outcomes.
Purpose of the Study:
- To review recent clinical studies on the pathogenesis and therapeutic management of Churg-Strauss syndrome.
- To explore potential differences in clinical characteristics based on autoantibody status.
Main Methods:
- Review of recent French and Italian clinical studies on Churg-Strauss syndrome.
- Analysis of clinical characteristics in relation to antineutrophil cytoplasmic autoantibody (ANCA) status.
Main Results:
- Clinical features of Churg-Strauss syndrome vary with ANCA status: cardiomyopathy is more common in ANCA-negative patients, while glomerulonephritis is more frequent in ANCA-positive patients.
- These findings suggest distinct Churg-Strauss syndrome subtypes with different pathogenetic mechanisms.
- Current therapies (corticosteroids and immunosuppressants) yield good outcomes ( >90% 5-year survival), though long-term low-dose corticosteroids may be needed for asthma control.
Conclusions:
- Pathogenesis of Churg-Strauss syndrome is not fully understood; ANCA may drive vasculitis (e.g., glomerulonephritis), while eosinophil infiltration causes cardiomyopathy.
- Individualized therapy based on clinical patterns may be beneficial.
- Emerging biologic therapies, such as anti-IL-5 and anti-IgE antibodies, show promise for specific patient groups.
Related Concept Videos
01:27Esophageal Achalasia
Esophageal achalasia is a chronic neurogenic disorder characterized by impaired relaxation of the lower esophageal sphincter (LES) and absent or ineffective peristalsis in the distal esophagus. This leads to a functional obstruction without a physical blockage, despite significant disruption of esophageal motility.EtiologyAchalasia is caused by degeneration of the myenteric (Auerbach's) plexus, specifically the loss of inhibitory ganglion cells that produce vasoactive intestinal peptide (VIP)...
01:30Esophageal Strictures-I: Introduction
Esophageal strictures involve abnormal narrowing or tightening of the esophagus. They vary in length and severity, ranging from mild constriction to complete obstruction, and are classified as benign (noncancerous) or malignant (cancerous).
Etiology
The primary cause of esophageal strictures is long-standing gastroesophageal reflux disease (GERD), accounting for about 70 to 80% of adult cases. Chronic acid reflux can lead to injury and scarring of the esophageal lining, culminating in...
Etiology
The primary cause of esophageal strictures is long-standing gastroesophageal reflux disease (GERD), accounting for about 70 to 80% of adult cases. Chronic acid reflux can lead to injury and scarring of the esophageal lining, culminating in...
01:30Other Disorders of Digestive System
The gastrointestinal tract is susceptible to various disorders. If the lower esophageal sphincter is damaged, stomach acid can flow back into the esophagus, causing irritation and inflammation of the lining. This condition is called gastroesophageal reflux disease (known as heartburn) and may cause chest pain and difficulty swallowing. In the stomach, prolonged use of nonsteroidal anti-inflammatory drugs like aspirin, chronic alcohol consumption, bacterial infections such as Helicobacter...
01:17Chronic Bowel Disorders: Introduction
Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
01:20Cholecystitis
Cholecystitis is inflammation of the gallbladder, most commonly caused by obstruction of the cystic duct. This blockage prevents bile from draining, leading to gallbladder distension, inflammation, and potentially serious complications. This condition may present acutely or chronically and can happen with or without gallstones.EtiologyAbout 95% of cholecystitis cases are calculous, caused by gallstones blocking the cystic duct, leading to bile accumulation and inflammation of the gallbladder...
01:24Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...