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Disease progression after initial surgical intervention for Takayasu arteritis
Sung Wan Ham1, S Ram Kumar, Vincent L Rowe
1Aortic Center, University of Southern California Cardio-Vascular Thoracic Institute, Los Angeles, CA 90033, USA.
Insights
Takayasu arteritis (TA) often progresses after initial revascularization, necessitating further procedures. Lifelong vascular surveillance is crucial for patients with TA undergoing surgical intervention.
Area of Science:
- Cardiovascular Medicine
- Vascular Surgery
- Rheumatology
Background:
- Takayasu arteritis (TA) is a large-vessel vasculitis.
- TA can lead to end-organ ischemia requiring revascularization.
- Long-term outcomes after revascularization for TA are not well-defined.
Purpose of the Study:
- To determine the incidence of disease progression in patients with TA.
- To assess the need for subsequent revascularization procedures in TA patients.
- To evaluate long-term outcomes and survival after revascularization for TA.
Main Methods:
- Retrospective review of patients with TA undergoing initial revascularization from 1980-2009.
- Analysis of incidence of revascularization in new vascular beds or revision of initial procedures.
- Assessment of postoperative morbidity, mortality, and actuarial survival.
Main Results:
- Forty patients underwent initial revascularization for indications including hypertension, renal dysfunction, extremity ischemia, and stroke.
- Disease progression or revascularization failure occurred in 40% of patients during a mean 6.4-year follow-up.
- Subsequent procedures were required for renal, cerebrovascular, and extremity ischemia, among others. Postoperative morbidity was 14% with one operative death.
Conclusions:
- Disease progression is common in Takayasu arteritis patients requiring revascularization.
- Lifelong global vascular surveillance is essential for TA patients post-intervention.
- The impact of immunosuppressive therapy on reoperation rates warrants further investigation.
Objective:
This study was conducted to determine the incidence of disease progression and the need for subsequent revascularization procedures in patients with Takayasu arteritis (TA).
Methods:
From 1980 to 2009, all patients with TA who underwent an initial revascularization procedure for end-organ ischemia were identified. The incidence of subsequent revascularization in another vascular bed or revision of the initial procedure was determined.
Results:
Forty patients (36 women; mean age, 35) underwent an initial revascularization procedure. Indications for the initial procedure were hypertension in 20, renal dysfunction in 9, extremity ischemia in 6, and stroke/transient ischemic attack in 5. The initial revascularization consisted of 60 bypass procedures and 4 endovascular interventions. During a mean follow-up of 6.4 years, progression of TA in another vascular bed or stenosis/occlusion of the initial revascularization procedure occurred in 16 patients (40%). Five patients with progression required one procedure, whereas 11 required two or more surgical interventions. Procedures required were renal in 12, cerebrovascular in 8, extremity in 8, aortic reconstruction in 5, and mesenteric in 1. Postoperative/30-day morbidity was 14%, and one operative death occurred. Actuarial survival was 94% at 1 year and 85% at 5 years after the remedial procedure.
Conclusions:
TA progression is common in patients who require revascularization for end-organ ischemia. This finding emphasizes the need for global lifelong vascular surveillance of all patients who undergo surgical intervention for TA. The effect of steroid and immunosuppressive therapy on reducing reoperation requires further study.
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