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Occlusive thromboaortopathy (Takayasu's disease): cervical arterial stenoses, retinal arterial pressure, retinal
Insights
Takayasu's disease patients were classified by cervical arterial stenosis severity. Severe stenosis (Class III) correlated with lower blood pressure and distinct retinal findings, indicating poor prognosis.
Area of Science:
- Vascular Medicine
- Neurology
- Ophthalmology
Background:
- Occlusive thromboaortopathy, commonly known as Takayasu's disease, affects young individuals.
- Cervical arterial system involvement is a significant concern in Takayasu's disease.
Purpose of the Study:
- To classify Japanese patients with Takayasu's disease based on cervical arterial stenosis.
- To evaluate the correlation between stenosis severity and clinical/ophthalmological findings.
- To assess the utility of diagnostic tools in identifying severe disease stages.
Main Methods:
- Serial aortography was used to determine the degree and extent of stenosis in 4 cervical arterial systems.
- Patients were categorized into three classes (I, II, III) based on stenosis severity.
- Ophthalmodynamometry and fundoscopic examinations were performed.
Main Results:
- Class III patients exhibited significantly lower ophthalmodynamometric systolic pressure compared to Class IIa.
- Retinal microaneurysms and/or arteriovenous anastomoses were prevalent in Class III patients.
- Angiography is crucial for monitoring disease progression and evaluating severe lesions.
Conclusions:
- Ophthalmodynamometry and fundoscopic findings aid in identifying severe cervical arterial stenosis in Takayasu's disease.
- Angiography is essential for evaluating severe lesions and monitoring progression to Class III.
- Class III disease indicates a poor prognosis, necessitating close monitoring.
Abstract:
Eighty-one young Japanese patients with occlusive thromboaortopathy (Takayasu's disease) were classed into three groups according to the degree and extent of diameter stenosis in the 4 cervical arterial systems, as determined by serial aortography. Class I was made up of 63 patients with 70% or greater stenosis in less than 3 systems, including 33 patients without systemic hypertension (Class Ia). Class II was made up of 6 patients with 70% or greater stenosis in 3 systems and less than 50% stenosis in the remaining 1, including 5 patients without systemic hypertension (Class IIa). Class III was up of 12 patients with 70% or greater stenosis in 3 systems and 50% or greater stenosis in 1 system. Ophthalmodynamometric systolic pressure in patients in Class III was significantly lower than that in patients in Class IIa (p less than 0.001), but there was no significant difference between patients in Classes Ia and IIa. Microaneurysms and/or arteriovenous anastomoses in the retinal vessels were found in all but one patient in Class III and in only one patient in combined Classes I and II. These results indicate that each of the ophthalmodynamometric values and fundoscopic findings are very helpful in identifying the markedly severe occlusive lesions (Class III) of the 4 cervical arterial systems. In this chronic disease, however, angiography is most useful for evaluation of these severe lesions, to monitor progression from Classes I and II to Class III, in which the prognosis is rather poor.