Percutaneous renal artery endoluminal cystic dilatation

Percutaneous puncture retrograde insertion into the cystic duct to the renal artery, the implementation of stenotic renal artery dilatation, referred to as PTA, was first applied to the treatment of renal vascular hypertension by Zeiter in 1971. It has been widely used in recent years and has been widely used. Clinical experience. According to the treatment results of more cases such as Schwarten, the expansion success rate and the effective rate of surgery are between 80% and 90%. 12 patients with Schwarten, Wein Bezger, and 7 patients with solitary stenosis and renal failure were successfully treated with PTA, avoiding the risk of emergency surgery and hemodialysis treatment that could not relieve the cause. A small number of post-expansion stenosis recurrence can be re-expanded, still effective, or the condition of dilatation can be relieved, and the stenosis can not be relieved, open renal angioplasty can be performed. PTA is a simple and safe surgical technique that can be considered for all types of renal artery stenosis. Treatment of diseases: renal artery stenosis Indication Renal artery stenosis hypertension with surgical indications can be performed by percutaneous transluminal cystic ductal dilatation, which shows the superiority of this technique for the following types of patients. 1. Old and old, with nephrotic syndrome, or complicated with heart and brain complications. 2. Renal artery stenosis. 3. Bilateral renal artery stenosis, can be treated by PTA first, such as bilateral success and long-term effect, can be exempted from open bilateral renal angioplasty, such as one side successful, one side failure, only the failure side Open surgery. Surgical procedure Sterile disinfection through the inguinal region, puncture of the femoral artery, retrograde insertion of the Grüntzig double-lumen capsule catheter into the renal artery, first send the guide wire to the distal part of the stenosis, and then place the selected cystic catheter along the guide wire in the stenosis. The capsule was filled at 506.63 to 810.60 kPa (5 to 8 atm) to expand the stenosis. Maintain 10 to 15 s, empty the cyst, and inject contrast medium for renal angiography to observe the expansion effect and blood flow. If the expansion is not satisfactory, it can be repeated 2 or 3 times.