|Untreated atherosclerotic renovascular hypertension will likely progress to a greater degree of stenosis within 2 years. Typically, it progresses at a rate of 7% per year. It is also likely to become bilateral, impair renal function, and develop into ischemic nephropathy, pulmonary edema, or congestive heart failure. Pulmonary edema and congestive heart failure are more likely with bilateral disease.|
Studies indicate that atherosclerotic renovascular hypertension treated with revascularization surgery or angioplasty has a cure rate of 15% to 44%, improvement rate of 50% to 75%, failure rate of 21%, and with follow-up of 8 to 9 years, cure or improvement rate of 79% (Novick 253). Likelihood of cure or improvement is greater with unilateral disease.
Individuals with fibromuscular disease who undergo angioplasty experience a 40% to 60% cure rate, 30% to 60% improvement rate, and <10% failure rate. Rates are comparable with surgical revascularization. Most of these individuals remain free of stenosis up to 5 years after the angioplasty with rates of 5% to 20% (Novick 253).
Source: Medical Disability Advisor