Clinical Phenotypes of Giant Cell Arteritis: Insights into Complications and Survival Outcomes
Paula Estrada1, Javier Narváez2, Patricia Moya3
1Department of Rheumatology, Complex Universitari Moisès Broggi, Sant Joan Despí, Barcelona, Spain.
Insights
Giant cell arteritis (GCA) has distinct clinical subsets. Cranial GCA shows more ischemic events, while occult GCA may indicate delayed diagnosis and higher mortality, guiding tailored treatments.
Area of Science:
- Rheumatology
- Internal Medicine
- Vascular Medicine
Background:
- Giant cell arteritis (GCA) is a complex vasculitis with varied presentations.
- Understanding GCA's clinical heterogeneity is key to managing its severity and complications.
Purpose of the Study:
- To assess the incidence of three GCA clinical subsets: cranial, extracranial, and occult.
- To analyze severe complications and survival rates associated with each GCA subset.
- To inform customized treatment strategies for improved patient outcomes.
Main Methods:
- Retrospective classification of GCA cases into cranial, extracranial, and occult phenotypes.
- Comparative analysis of acute and late complications, including ischemic events and aortic aneurysms.
- Collection and analysis of survival data for each GCA subset.
Main Results:
- Visual disturbances were more frequent in cranial GCA.
- Limb claudication was significantly higher in the extracranial subset.
- Severe ischemic complications were more common in cranial GCA; occult GCA showed a trend toward higher mortality.
Conclusions:
- GCA clinical subsets exhibit distinct complication profiles and survival outcomes.
- Cranial GCA is linked to increased ischemic events; occult GCA suggests potential diagnostic delays and mortality risks.
- Identifying GCA subsets is vital for personalized treatment and prognosis enhancement.
Background:
Giant cell arteritis (GCA) is a heterogeneous disease with diverse clinical presentations and varying degrees of severity. This study aimed to assess the incidence of 3 clinical subsets in GCA and analyze associated severe complications and survival rates. By identifying distinct clinical patterns, the goal is to customize treatment approaches and minimize severe complications during follow-up.
Methods:
This retrospective study classified clinical manifestations of GCA into 3 major phenotypes based on the reason for consultation: i) cranial, ii) extracranial, and iii) occult GCA. These groups were analyzed and compared for acute complications, including severe ischemic complications, "true" occlusive disease, and late complications such as aortic aneurysm. Survival data were also collected during follow-up.
Results:
Visual disturbances were more common in the cranial GCA group compared to other subsets (P < .001). Blindness and stroke showed a clinically relevant trend, although statistical differences were not significant between the cranial GCA groups. Limb claudication was significantly more prevalent in the extracranial subset compared to the cranial or occult GCA subsets (12% vs. 2.6% vs. 0% respectively). Severe ischemic complications and true occlusive disease were more frequent in the cranial GCA groups (60%, P=.005 and 40%, P=1.64 respectively). Regarding mortality, there were no statistically significant differences in survival among the different clinical subsets. However, the occult GCA subset showed a trend towards a higher prevalence of deaths, both overall and specifically due to GCA.
Conclusion:
Clinical subsets in GCA present distinct complications and survival outcomes, with the cranial subset showing a higher incidence of severe ischemic events and the occult subset associated with delayed diagnosis and increased mortality. Recognizing these subsets is crucial for tailored treatment approaches and improving patient prognosis. Further prospective studies are needed to refine diagnostic and therapeutic strategies.
More Related Videos
05:14Author Spotlight: Overcoming Anti-VEGF Resistance Through Advanced Vascular Morphology Assessment in Choroidal Neovascularization
Published on: August 11, 2023
09:06Quantitative Analysis of Cellular Composition in Advanced Atherosclerotic Lesions of Smooth Muscle Cell Lineage-Tracing Mice
Published on: February 20, 2019
Related Concept Videos
01:23Rheumatic Heart Disease I: Introduction
01:25Endocarditis II: Clinical features and Diagnostic Tests
01:15Aortic Regurgitation I: Introduction
01:19Pericarditis II: Clinical features and Diagnostic Tests
01:20COPD: Pathogenesis and Clinical Features
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
01:21Cancer Survival Analysis