The effect of incision of the intrarenal sinus plus postrenal low pole segmental incision for removal of calculus on the renal hemodynamics / 中华泌尿外科杂志

ABSTRACT

Objective To evaluate the effect of incision of the intrarenal sinus plus postrenal low pole segmental incision for removal of calculus on the renal hemodynamics. Methods The hemodynamic changes of intrarenal and incisional sites in 98 cases with complex calculi were consecutively monitored by color Doppler ultrasonograph before operation and also 1 month,3 months,6 months after operation.The ratio(S/D) of the peak flow-rate in systole(S),the flow-rate at the end of diastole(D),and the resistant index(RI) of the intrarenal chief renal arteries and intersegmental arteries and interlobar arteries were analyzed.The signals of blood stream in segmental incision were divided into four classes(Ⅰ to Ⅳ) and were observed. Results The changes of the intrarenal hemodynamics were related to the degrees of hydronephrosis(P0.05),but it caused the blood stream to be obstructed in the area of incision where the signals of blood stream showed classes Ⅲ to Ⅳ.The patients generally recovered after 3 to 6 months,and the time of recovery was associated with the degrees of hydronephrosis Conclusions It is concluded that the incision of the intrarenal sinus plus postrenal low pole segmental incision for removal of calculus is an effective and safe method for treat-ment of complex renal calculus.