Publications by authors named "Wansuk Kim"

To investigate the influence of preoperative smoking history on the survival outcomes and complications in a cohort from a large multicenter database. Many patients who undergo radical cystectomy (RC) have a history of smoking; however, the direct association between preoperative smoking history and survival outcomes and complications in patients with muscle-invasive bladder cancer (MIBC) who undergo robot-assisted radical cystectomy (RARC) remains unexplored. We conducted a retrospective analysis using data from 749 patients in the Korean Robot-Assisted Radical Cystectomy Study Group (KORARC) database, with an average follow-up duration of 30.

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Purpose: The objective of this study is to analyze characteristics of recurrent acute urinary retention (AUR) in patients with benign prostatic hyperplasia (BPH), utilizing a population based data set. Also, we sought to report on how AUR was treated, specifically regarding the need and length of catheterization and types of procedures utilized for mitigation.

Materials & Methods: A retrospective observational cohort study was performed using Optum's deidentified Clinformatics® Data Mart Database.

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Background: Incidentally diagnosed adrenal masses represent an entity that can result in either long term follow-up, surgical excision, or both. Understanding when and which adrenal masses are ultimately excised surgically is not well understood. We sought to understand the ultimate fate of these incidentalomas using a large population-based dataset.

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Objectives: To evaluate postoperative complications following robot-assisted radical cystectomy in patients diagnosed with bladder cancer and reveal if there are predictors for postoperative complications.

Methods: Prospectively collected medical records of 730 robot-assisted radical cystectomy patients between 2007/04 and 2019/05 in 13 tertiary referral centers were reviewed. Perioperative outcomes were compared between two groups by postoperative complications (complication vs non-complication).

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Article Synopsis
  • VISTA is an immune checkpoint molecule found in various immune cells, and this study explores its presence in bladder cancer specifically, which has been under-researched.
  • The study analyzed tissue samples from 159 bladder cancer patients, finding that 67.9% had VISTA-positive immune cells, with its expression linked to more aggressive tumor characteristics.
  • Results suggest that VISTA expression could indicate poorer prognosis and potential as a target for immunotherapy in bladder cancer patients.
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We aimed to compare the oncologic outcomes of intracorporeal urinary diversion (ICUD) and extracorporeal urinary diversion (ECUD) following robot-assisted radical cystectomy (RARC) in patients diagnosed with bladder cancer. Medical records of 730 patients who underwent RARC between April 2007 and May 2019 in 11 tertiary referral centers were retrospectively reviewed. We assessed recurrence-free survival (RFS), cancer-specific survival (CSS), and overall survival (OS) in the two groups using the Kaplan-Meier method.

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Targeted therapy for metastatic renal cell carcinoma (mRCC) treatment requires the identification of clinically important factors that can predict the therapeutic effect. We retrospectively investigated the prognostic roles of pre-treatment sarcopenia and relative dose intensity during the initial two cycles (2c-RDI) of sunitinib treatment in patients with mRCC. In total, 41 (52.

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Purpose: The purpose of this study was to determine the relationship between pre-operative donor split renal function (SRF) and the renal function outcome of donors and recipients after kidney transplantation (KT).

Methods: A total of 217 living KT cases were investigated. The estimated glomerular filtration rate (eGFR) change of recipients and donors, as well as graft survival, were analyzed based on the donor SRF.

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Purpose: Preoperative use of 5α-reductase inhibitors (5ARIs) may cause fibrosis of the prostate tissue and reduce the efficiency of thulium laser surgery for treating benign prostate hyperplasia (BPH). Thus, we investigated the effects of preoperative 5ARI use in this setting.

Materials And Methods: This retrospective study examined 184 patients who underwent thulium laser surgery for BPH during 2012-2017.

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Background This study was designed to examine the effectiveness of program combining chakrayoga and meditation on the physical health and disease-related factors and psychological factors of people. Methods Ninety-seven subjects (32-83 years old) who had free from prior experiences in meditation programs or Chakrayoga training courses were assigned to either the experimental group (EXP) (45 subjects; 13 male subjects and 32 female subjects; average age of 60.67 years, SD=11.

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Purpose: Androgen receptors (ARs) are expressed on a variety of cell types, and AR signaling plays an important role in tumor development and progression in several cancers. This in vitro study evaluated the effect of dihydrotestosterone (DHT) on the proliferation of renal cell carcinoma (RCC) cells in relation to AR status.

Methods: Steroid hormone receptor expression was evaluated using RT-PCR and Western blotting.

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Purpose: As with other areas, there have been many efforts for minimally invasive surgery in varicocelectomy. We present our initial experience with laparoscopic varicocelectomy with a two-port scarless periumbilical mini-incision.

Materials And Methods: The study enrolled 18 patients who underwent laparoscopic varicocelectomy with a twoportscarless periumbilical mini-incision from February 2012 to April 2013.

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Background: To evaluate the relationship between postoperative prostate-specific antigen (PSA) levels and biochemical recurrence (BCR) after radical prostatectomy, especially in patients with positive surgical margins (PSMs).

Materials And Methods: A total of 144 patients who underwent radical prostatectomies performed by a single surgeon without any neoadjuvant or adjuvant treatment were analyzed. Differences in clinicopathological factors were compared by surgical margin status, and the relationship between postoperative PSA level and BCR in patients with PSMs was evaluated.

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Purpose: To evaluate the characteristics of patients who received primary androgen deprivation therapy (PADT) for prostate cancer and the clinical efficacy of this treatment.

Materials And Methods: Two hundred forty patients treated by PADT were reviewed. These patients could not receive definitive therapy owing to old age, patient need, and medical comorbidity.

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18-fluoro-2-deoxyglucose positron emission tomography-computed tomography (18F-FDG PET/CT) scans are commonly used for the staging and restaging of various malignancies, such as head and neck, breast, colorectal and gynecological cancers. However, the value of FDG PET/CT for detecting prostate cancer is unknown. The aim of this study was to evaluate the clinical value of incidental prostate 18F-FDG uptake on PET/CT scans.

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Article Synopsis
  • - In 2011, the University of California, San Francisco introduced the CAPRA-S score for assessing prostate cancer progression after surgery, but prior comparisons with preoperative indicators were lacking.
  • - A study involving 130 patients who had radical prostatectomy between 2008 and 2013 validated the CAPRA-S score and found it outperformed the earlier CAPRA score in predicting 5-year progression-free survival.
  • - The CAPRA-S score demonstrated better predictive capabilities for both 3-year and 5-year progression-free survival rates and was deemed more suitable than the CAPRA score for guiding adjuvant therapy decisions.
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Article Synopsis
  • The increase in prostate cancer incidence and mortality in Korea is notable, particularly as native Koreans present with more advanced disease compared to American counterparts.
  • A study involving 1,159 males revealed that Koreans had higher mean preoperative PSA levels and Gleason scores than Americans, indicating a greater severity of disease at diagnosis.
  • The findings suggest that Korean patients may benefit from new prostate cancer treatment strategies due to their higher risk of malignant prostate cancers.
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Purpose: To investigate the relationships among the Wnt/β-catenin pathway, androgen receptor (AR), and clinicopathological factors in hormone-naïve prostate cancer.

Materials And Methods: This study was conducted with132 cases of hormone-naïve prostate cancer treated by prostatectomy and prostate needle biopsy. An immunohistochemical study using antibodies against β-catenin, matrix metalloproteinase-7 (MMP-7), and the AR was performed.

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Background And Purpose: Current guidelines recommend routine second transurethral resection (TUR) for accurate diagnosis and to prevent understaging of muscle-invasive bladder cancer. We evaluated the diagnostic accuracy of immediate second resection of the tumor bed during initial TUR and its prognostic significance.

Patients And Methods: Patients (n=126) undergoing TUR were prospectively randomized to undergo (n=63) or not undergo (n=63) immediate second resection of the tumor bed after complete TUR.

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Purpose: The survival benefits of adjuvant androgen-deprivation therapy (ADT) in prostate cancer and lymph node metastasis remain unclear. We assessed the role of ADT in disease progression after radical prostatectomy (RP).

Materials And Methods: Of 937 patients who underwent RP, we identified 40 (4.

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Background: Components of metabolic syndrome have been associated with kidney stone disease, but little evidence is available to support a relationship between metabolic syndrome and kidney stone development in healthy large screened populations.

Study Design: Cross-sectional analysis.

Setting & Participants: Data were obtained from 34,895 individuals who underwent general health screening tests between January 2006 and December 2006 at the Asan Medical Center.

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Background: Early studies reported comparative results of functional outcomes between robot-assisted (RARP) and retropubic radical prostatectomy (RRP). However, well-controlled single-surgeon prospective studies comparing the outcomes are rare.

Objective: To compare functional outcomes after RARP and RRP performed by a single surgeon, and to identify factors predictive of early return of continence and potency.

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Purpose: To directly compare the outcome of laparoscopic radical prostatectomy (LRP) with robot-assisted laparoscopic prostatectomy (RALP) performed by a single laparoscopic surgeon with intermediate experience-one who is between a novice and an expert.

Patients And Methods: Consecutive 106 patients with prostate cancer who were treated with radical prostatectomy (62 with LRP and 44 with RALP) were included. The preoperative characteristics, the perioperative surgical outcomes, and the functional outcomes were compared between the two groups.

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Objective: To evaluate the detection rate and pathology of cancer in Korean men with low levels of prostate-specific antigen (PSA), 2.5-4.0 ng/mL.

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