Seventy-six patients with MUO were assigned to the metallic
stent group (
MSG) or the ordinary
polymer stent group (OPSG) according to the different materials. The success rate of the operation, duration of operation, patency rate serum
creatinine values ,postoperative complications and QOL scores were compared between the two groups.
RESULTS: In the OPSG and
MSG, the success rates of the operation were 95.5% and 96.9%, respectively, and the durations of the operation were 20.6 ± 2.2 min and 50.9 ± 10.3 min (P < 0.01), respectively. There was no significant difference between the groups in serum
creatinine values at 3 days after the operation (P > 0.05); however, the
creatinine values at 3 days after the operation decreased significantly compared with those before the operation (P < 0.01). In the OPSG, there was no significant difference in
creatinine values between 3 days and 6 months after operation, while the
creatinine values 1 year after operation were increased significantly compared to those at 3 days after the operation (P < 0.05). In the
MSG, there was no significant difference among
creatinine values at different intervals (P > 0.05). The total rate of post-procedural complication was lower in the
MSG than that in the OPSG(P < 0.05). There was no significant difference in the QOL score between the two groups before the operation (P > 0.05); however, the QOL scores at 6 months and 1 year after the operation were higher in the
MSG than that in the OPSG(P < 0.05). In the
MSG, there was no significant difference in the QOL score between preoperation and 6 months after surgery. Similarly, there was also no difference in the QOL score between 6 months after surgery and 1 year after surgery(P > 0.05). On the contrary, the differences of QOL score in the OPSG group were much significant between disparate time intervals (P < 0.05).
CONCLUSIONS: