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Hyuk-Dal Jung(정혁달),Hyeong Dong Yuk(육형동),Ulanbek Balpukov,Ja Hyeon Ku(구자현),Cheol Kwak(곽철),Hyeon Hoe Kim(김현회),Chang Wook Jeong(정창욱) 대한비뇨기종양학회 2020 대한비뇨기종양학회지 Vol.18 No.3
Purpose: To evaluate the clinical usefulness of the Seoul National University Prostate Cancer Risk Calculator (SNU-PCRC) to reduce unnecessary prostate biopsy and to increase the detection rate of high-risk cancer. Materials and Methods: We retrospectively analyzed 546 patients who underwent prostate biopsy between 2014 and 2016. The subjects were divided into 2 groups based on the type of risk calculator used: conventional and SNU-PCRC group. In the SNU-PCRC group, prostate biopsy was recommended when the probability of SNU-PCRC was more than 30%. Results: The SNU-PCRC group had significantly smaller prostate volume (p=0.010) and significantly more digital rectal examination and transrectal ultrasonography (TRUS) abnormalities (p=0.011 and p=0.010, respectively). Overall detection (71.9% vs. 32.1%) and high-risk cancer detection rates (40.6% vs. 19.3%) were significantly higher in the gray zone (prostate-specific antigen=4-10 ng/mL) (p<0.001 and p=0.006). The group with prostate cancer risk ≥30% on the SNU-PCRC compared to <30% group, overall detection rate of 72.3% versus 30.2% and high-risk detection rate of 60.6% versus 18.3% were significantly different (p<0.001 and p<0.001). Applying the SNU-PCRC to the conventional group could avoid unnecessary prostate biopsy in 50.6%. Conclusions: SNU-PCRC is clinically useful to reduce unnecessary prostate biopsy and increase overall detection rate and high-risk cancer detection rate.
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Louis Kim,Minh Tung Do,정혁달,임영재,왕규창,이지연,박관진 대한배뇨장애요실금학회 2022 International Neurourology Journal Vol.26 No.1
Purpose: Controversy exists regarding the role preoperative urodynamic study for asymptomatic closed spinal dysraphism as it has failed to reveal the benefit in surgical decision and expectation of urological outcomes. We explore the relationship between preoperative videourodynamic study and postoperative urological outcomes after toilet training completed, focusing on their capability of spontaneous voiding. Methods: We retrospectively reviewed the data of 181 patients who underwent preventive spinal cord untethering and followed at least till the completion of toilet training. Before untethering, patients underwent preoperative videourodynamic study. Postoperative voiding function was evaluated in 3 phases: (1) till postoperative 6 months, (2) till the completion of toilet training, and (3) 2 years after toilet training. Changing distribution of emptying pattern at each period was described. Also, relevance to preoperative urodynamic parameters on spontaneous voiding and urinary continence after toilet training was assessed. Results: Spinal lipoma and low lying conus were found in 145 (80%) and 128 patients (70.7%), respectively. Spontaneous voiding was found in 125 (69.1%), 164 (90.6%), and 162 patients (89.5%) at postoperative 6 months, till the toilet training, and 2 years after toilet training, respectively. Videourodynamics helped to clarify the presence of vesicourethral synergy. This was correlated with spontaneous voiding at postoperative 6 months and better urinary continence after 2 years of toilet training. Conclusions: Eventual spontaneous voiding was achieved till toilet training in 90% patients following preventive untethering. Those showing preoperative vesicourethral synergy was associated with faster achievement of spontaneous voiding and better urinary continence when they enter elementary school.
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