Reproducibility and Step-By-Step Learning Curve of Retroperitoneal Video-Assisted Mini-Laparotomy Surgery for Living Donor Nephrectomy: A Single-Center Experience.

Objectives: Living donor transplant techniques must ensure donor safety and minimize complications. To achieve this goal, in 2003, we developed a new surgical procedure named video-assisted mini-laparotomy surgery for living donor nephrectomy. Video-assisted mini-laparotomy surgery standardizes the retroperitoneal mini-laparotomy technique as an alternative to open surgery.

Retroperitoneal single-site robot-assisted partial nephrectomy using Lapsingle Vision advanced access platform: initial three case reports.

Robot-assisted partial nephrectomy is currently the standard for treatment of small renal mass. Recently, robot-assisted single site surgery has been introduced. However, there have been few reports of retroperitoneal approaches.

Credé maneuver to adjust tape tension during trans-obturator tape mid-urethral sling in mixed urinary incontinence.

Introduction And Hypothesis: To evaluate the efficacy of intraoperative extrinsic manual bladder compression (Credé maneuver) for trans-obturator tape adjustment during mid-urethral sling surgery in women with stress urinary incontinence and those with mixed urinary incontinence.

Methods: The study included 148 randomly selected women who underwent mid-urethral sling surgery with trans-obturator tape for stress urinary incontinence between January 2016 and May 2017. Subgroup analysis of 66 women with mixed urinary incontinence included 43 patients from the Credé maneuver group and 23 from the non-Credé maneuver group.

Prognostic Factors of Penile Cancer and the Efficacy of Adjuvant Treatment after Penectomy: Results from a Multi-institution Study.

Background: Penile cancer is a rare malignancy associated with high rates of mortality and morbidity. Currently, the efficacy of adjuvant treatment (AT), including radiotherapy and chemotherapy, for penile cancer remains unclear. Therefore, we investigated the prognostic factors for treatment outcomes and the efficacy of AT in consecutive patients who underwent penectomy for penile cancer at multiple Korean institutions between 1999 and 2013.

Can recording only the day-time voided volumes predict bladder capacity?

Purpose: This study aimed to demonstrate a method to easily assess bladder capacity using knowledge of day-time voided volumes, which can be obtained even from patients with nocturnal enuresis where the first morning void cannot accurately predict the bladder capacity due to bladder emptying overnight.

Materials And Methods: We evaluated 177 healthy children from 7 Korean medical centres entered the study between January 2008 and January 2009. Voided volumes measured for more than 48 hours were recorded in the frequency volume chart (FVC).

Indications for a second prostate biopsy in patients suspected with prostate cancer after an initial negative prostate biopsy.

Background: The present study aimed to evaluate the indications for a second prostate biopsy in patients suspected with prostate cancer after an initial negative prostate biopsy.

Methods: The present study included 421 patients who underwent repeat prostate biopsy between January 2007 and December 2015 at three hospitals. Clinicopathological data, including patient age, body mass index, history of prostate biopsy, prostate volume, prostate-specific antigen (PSA) level, PSA density, PSA velocity, and PSA fluctuation patterns, were analyzed.

Intraoperative Observation of the Degree and Pattern of Urine Leakage before Adjustment of the Mesh during a Transobturator Tape Procedure.

Most intraoperative provocative tests previously reported were performed after mesh adjustment to confirm the absence of urine leakage. Instead, our test was performed before adjustment of the mesh to control the tape tension after observing the pattern of the urine leakage. We studied whether this method had an effect on the success rate of transobturator tape (TOT) procedures.

Preoperative clinical factors for diagnosis of incidental prostate cancer in the era of tissue-ablative surgery for benign prostatic hyperplasia: a korean multi-center review.

Purpose: To identify potential predictive factors of incidental prostate cancer (IPca) in patients considering tissue-ablation treatment for benign prostatic hyperplasia (BPH).

Materials And Methods: From the 11 centers, 1,613 men who underwent transurethral resection of the prostate (TURP) or open prostatectomy were included. Before surgery, prostate biopsy was performed in all patients with prostate-specific antigen (PSA) ≥4.

Is prostate biopsy essential to diagnose prostate cancer in the older patient with extremely high prostate-specific antigen?

Purpose: The results of all prostate biopsies may be positive and suggestive of adenocarcinoma in patients with prostate-specific antigen (PSA) values higher than 100 ng/ml. We considered that the prostate cancer in patients with high PSA might be advanced disease and therefore that the treatment strategy should not be changed according to pathological reports. Thus, we assessed the role of prostate biopsy when diagnosing prostate cancer in patients with extremely high PSA levels.

Pattern of lymph node metastasis correlates with tumor location in bladder cancer.

Purpose: Resection of a large number of lymph nodes (LNs) increases survival in patients with LN-positive disease; however, morbidity also increases. Here, we investigated the correlation between tumor location and LN metastasis in bladder cancer.

Materials And Methods: Thirty-six patients with pathological N1 or higher bladder cancer, who underwent radical cystectomy with extended lymphadenectomy, were reviewed retrospectively.

Evaluation of maximum voided volume in Korean children by use of a 48-h frequency volume chart.

Unlabelled: Study Type - Diagnostic (validating cohort). Level of Evidence 2a. What's known on the subject? and What does the study add? The relationship between the maximum voided volume followed a linear curve.

Correlation of male overactive bladder with intravesical prostatic protrusion.

Purpose: Male overactive bladder (OAB) may be caused by prostatic pathologies such as bladder outlet obstruction (BOO). Intravesical prostatic protrusion (IPP) has been found to correlate with BOO and acute urinary retention. We investigated the interrelation between male OAB symptoms and IPP for estimating anatomical changes to the prostate.

Nationwide survey to evaluate the prevalence of varicoceles in South Korean middle school boys: a population based study.

Objective: We carried out a nationwide epidemiological study to evaluate the prevalence and effect of varicoceles on testicular volume in South Korean adolescents. We also investigated the correlation between varicoceles and body mass index (BMI).

Methods: In this prospective study, physical examinations were carried out to assess the presence and severity of varicoceles in middle school boys from six regions of South Korea.

Relationship between prostate-specific antigen and body mass index according to age: lower prostate-specific antigen in middle-aged overweight and obese Korean men.

Objective: To analyze the relationship between serum prostate-specific antigen (PSA) and body mass index (BMI) according to age in a population of ostensibly healthy Korean men.

Patients And Methods: Between 2002 and 2006, data from 13,025 men who visited health promotion centers were evaluated. All men underwent anthropometric measurements and serum PSA determination.

A multi-institutional study on histopathological characteristics of surgically treated renal tumors: the importance of tumor size.

Purpose: The incidence of accidentally detected small renal tumors is increasing throughout the world. In this multi-institutional study performed in Korea, histopathological characteristics of contemporarily surgically removed renal tumors were reviewed with emphasis on tumor size.

Materials And Methods: Between January 1995 and May 2005, 1,702 patients with a mean age of 55 years underwent surgical treatment at 14 training hospitals in Korea for radiologically suspected malignant renal tumors.

Prostate-specific antigen velocity in healthy Korean men with initial PSA levels of 4.0 ng/mL or less.

Objectives: To assess the longitudinal changes in serial prostate-specific antigen (PSA) levels in healthy Korean men with initial PSA levels of 4.0 ng/mL.

Methods: The rate of PSA change or PSA velocity (PSAV) in 24 869 healthy men with an initial PSA level of 4.

Age-specific prostate-specific antigen reference ranges in Korean men.

Objectives: The serum prostate-specific antigen (PSA) level varies widely among different races and increases with age. In this study, we evaluated the variation in serum PSA levels in a multicenter study population to determine a standard age-specific PSA reference range for Korean men without clinically evident prostate cancer.

Methods: We retrospectively analyzed 120,439 Korean men, ranging in age from 30 to 79 years, whose serum PSA levels were measured at one of eight referral hospitals from November 1998 to July 2005.

Association of cyclooxygenase-2 expression with prognosis of stage T1 grade 3 bladder cancer.

Objectives: To determine whether the expression of cyclooxygenase-2 (COX-2) has prognostic significance in Stage T1G3 transitional cell carcinoma of the bladder, the most unfavorable subgroup in terms of recurrence and disease progression.

Methods: Thirty-seven consecutive patients with initial T1G3 transitional cell carcinoma, who had undergone complete transurethral resection, followed by 6 weeks of intravesical instillation of bacille Calmette-Guérin (BCG), and with at least 1 year of follow-up, were enrolled in the study. Paraffin-embedded cancer tissue samples were immunohistochemically stained for COX-2, and possible correlations with clinicopathologic features, such as age, shape and multiplicity of tumor, recurrence, and progression were examined.