[The significance of the systolic gradient value in percutaneous transluminal angioplasty].

In the period of 10/1980-12/1985 the authors performed 102 percutaneous transluminal angioplasty operations on 95 patients in the area of pelvic vascular bed and arteries of lower extremities. The authors evaluated the values of systolic gradient before and after the intervention. Computer assisted statistical methods were used in the search of relationship between the value of systolic gradient and duration of clinical improvement after the surgery. There was not any statistically significant relation between the values of S-gradient before and after PTA and the long-term fate of the patients treated by this method. The authors are of the opinion, though, that measuring this value provides a useful information in the course of surgery.