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Percutaneous angioplasty for treatment of renovascular hypertension
Insights
Percutaneous transluminal angioplasty (PTA) effectively treated renovascular hypertension in 10 patients. The procedure demonstrated a 90% success rate, significantly improving or curing hypertension in most cases.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
- Nephrology
Background:
- Renovascular hypertension is a significant cause of secondary hypertension.
- Obstructive lesions in the renal arteries are a primary cause of renovascular hypertension.
- Medical management is often insufficient for severe cases.
Purpose of the Study:
- To evaluate the efficacy of percutaneous transluminal angioplasty (PTA) in treating renovascular hypertension.
- To assess blood pressure outcomes and success rates following PTA for renal artery stenosis.
- To determine the impact of lesion type on PTA outcomes.
Main Methods:
- A cohort of 10 patients with renovascular hypertension underwent PTA.
- Lesion etiology included atherosclerotic, fibrodysplastic, and mixed types.
- Blood pressure was monitored before and immediately after PTA, with long-term follow-up.
Main Results:
- Immediate cure of hypertension was achieved in 60% of patients (6/10).
- Improvement in hypertension was observed in 30% of patients (3/10).
- The overall success rate was 90%, with one failure due to incomplete dilatation.
Conclusions:
- PTA is a highly effective treatment for renovascular hypertension.
- Successful dilatation is crucial for achieving optimal outcomes.
- PTA offers a significant therapeutic option for patients with drug-resistant hypertension due to renal artery stenosis.
Abstract:
In this study, 10 patients with renovascular hypertension were treated with percutaneous transluminal angioplasty (PTA). The obstructive lesion was atherosclerotic in four cases, fibrodysplastic in five, and mixed in one. Stenosis was bilateral in two patients. Before PTA, all patients had sustained hypertension, in nine despite medication. Immediately after PTA, hypertension was cured (BP less than or equal to 140/90 mmHg without medication) in six patients, and improved (either a BP less than or equal to 140/90 or a decrease in diastolic BP greater than 15 mmHg, with equal or less medication) in three patients. The one failure occurred in the only patient in which PTA did not achieve a complete dilatation of the stenosed artery. The overall success rate was 90 per cent after a mean follow-up of 17.5 months.