ABSTRACT
Objective To evaluate the efficacy and safety of percutaneous micro-channel approach in treatment of pelvis side cyst and ureteropelvic junction obstruction simultaneously. Methods 32 patients with unilateral solitary parapelvic cyst complicated with UPJO, including 25 cases with ipsilateral kidney stones. After percutaneous holmium laser lithotripsy for patients complicated with calculi, then performed incision and drainage through the channels for parapelvic cyst by holmium laser, and antegrade high pressure balloon dilatation for UPJO, drainage by hippocampal tube in 3 ~ 6 months postoperatively. The operation time of fenestration drainage of cyst, narrow hypertensive dilatation and postoperative hospital stay were analyzed. Results Compared with 1 month (46.17 ± 6.33), 3 months (40.47 ± 6.06), 6 months (33.81 ± 7.05), 9 months (28.95 ± 7.92) after surgery, there was a marked improvement of the separation coefficient of renal convergence, the difference was statistically significant (P < 0.05). And compared with 6 months after surgery, the data of 9 months after surgery has statistical significant differences (P < 0.05). The separation coefficient of renal convergence decreases as time goes on. Conclusions Percutaneous micro-channel approach in treatment of pelvis side cyst and ureteropelvic junction obstruction by the same time can effectively relieve symptoms and decrease the separation coefficient of renal convergence. It is safe and effective.
ABSTRACT
BACKGROUND AND OBJECTIVES: To reduce the subacute stent thrombosis, the use of high pressure final balloon dilatations and confirmation of adequate stent expansion by intravascular ultrasound has been recommended. The purpose of this study is to compare incidence of stent thrombosis and major cardiac events (MACE) between high and moderate pressure balloon technique without using intravascular ultrasound (IVUS) guidance. MATERIALS AND METHODS: We prospectively studied 147 patients (110 males & 37 females, mean;56.9+/-9.9 years, 154 lesions) who were deployed intracoronary stents with the use of conventional technique except IVUS guidance. According to inflation pressure, patients were divided into two groups; G1 (moderate pressure group, maximum inflation balloon pressure or =14ATM, 77 lesions). We investigated the incidence of stent thrombosis and MACE between two groups during the 10 month follow up examination. RESULTS: 1) The mean inflation presure is different between two groups by definition (G1:G2 10.2+/-1.8; 15.2+/-1.3 ATM p<0.001). 2) The stenotic lesion lengths of the group of patients treated with the moderate pressure techique were longer than those treated under the high pressure technique (G1:G2 19.8+/-7.1 mm; 16.3+/-4.1 mm p=0.002). 3) There were no significant differences between the moderate pressure group and the high pressure group during the 10 month follow-up examination in terms of MACE[early event (0-14D)-subacute thrombosis G1:G2 0:0 death G1; G2 1:1/late events (15D - 10M)-repeat revascularization:G1; G2 8; 7, CABG G1; G2 1; 0, Q.M.I G1; G2 1; 0]. CONCLUSION: Onselectedpatients,itispossibletoconsidermoderatepressure technique as an other option for coronary stenting.