Abstract: Objective To study prostate volume change and its clinical significance of transurethral plasma kinetic enucleation of prostate. Methods The clinical data of 90 patients with hyperplasia of prostate undergoing surgical treatment in our hospital during 2010.1 to 2013.12 were retrospectively analyzed. Prostate volume and international prostate symptom score (IPSS), maximum urinary flow rate (Qmax) and residual urine (RU) of TUEB and SPP groups were compared. Results Postoperative prostate images in two groups were both close to prostate surgery capsule layers. Between preoperative and postoperative prostatic volumes in two groups, there were no statistically significant difference (P>0.05); In TUEB group, there was significant difference (P<0.001) in postoperative prostate volume to preoperative prostate volume. Similarly, in SPP group postoperative prostate volume was significantly difference(P<0.001) to preoperative prostate volume. In TUEB and SPP groups, postoperative residual gland volume accounted for about 36% of the preoperative volume, and residual prostatic volume mainly was surgical capsule. Postoperative IPSS, Qmax and RU in each group were improved (P<0.05), but there was no statistically significant difference between curative effect of the two groups(P>0.05). Conclusion Transurethral prostate enucleation by a surgical capsule, can effectively relief prostate hyperplasia symptoms in patients with lower urinary tract obstruction, and have high safety. The skill of transurethral enucleation of prostate may replace TURP as the “golden standard” in the surgical treatment of BPH in the future.

Key words: Benign prostatic hyperplasia, Prostate surgery capsule, Prostate volume, Effect