Publications by authors named "In Gab Jeong"

Purpose: Consensus is lacking among South Korean urologists on the appropriate treatment of metastatic hormone-sensitive prostate cancer (mHSPC). A modified, Delphi-based consensus on managing mHSPC patients was developed to support clinical decision-making.

Materials And Methods: Thirty-six questions on mHSPC treatment were developed by an expert committee (five urologists).

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Background And Objective: The increasing demand for prostate magnetic resonance imaging (MRI) underscores the need for better accessibility. We conducted a prospective study to compare fast biparametric MRI (fast-bpMRI) with multiparametric MRI (mpMRI) in terms of the number of men requiring biopsy and the detection rate for clinically significant prostate cancer (csPC).

Methods: From May 2021 to December 2023, fast-bpMRI and mpMRI scans for 364 men were randomly assigned at a 1:1 ratio to two different readers for evaluation using Prostate Imaging-Reporting and Data System (PI-RADS) version 2.

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Objectives: To determine and compare the efficacy and safety of GV1001 and 5 mg finasteride for benign prostatic hyperplasia (BPH) patients.

Patients And Methods: This randomized, active-controlled, multicenter, phase 3 clinical trial enrolled 423 patients aged ≥50 years with a prostate volume (PV) >30 mL. Patients were randomized into Group 1 (GV1001 0.

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The methylated PENK gene is known to be highly expressed in the urine of patients with bladder cancer. Recent large-scale multicenter studies have confirmed the robust diagnostic performance of urinary PENK methylation, reporting high sensitivity and specificity for bladder cancer detection. However, its association with other cancers remains unclear.

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This study compares recurrence-free survival (RFS) and overall survival (OS) in patients with non-clear cell (nccRCC) and clear cell renal cell carcinoma (ccRCC) undergoing surgical nephrectomy with thrombectomy (SNTx) for RCC with venous thrombus. Data from patients who underwent SNTx at two tertiary centers (June 1990-December 2022) were retrospectively reviewed. Patients were grouped as ccRCC or nccRCC and stratified by metastasis status at surgery.

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Purpose: This study aimed to assess the incidence, severity, and onset of dermatologic adverse events (dAEs) in Korean patients treated with apalutamide for metastatic hormone-sensitive prostate cancer (mHSPC) and to identify clinical and laboratory predisposing factors.

Materials And Methods: We retrospectively analyzed data of patients treated with apalutamide for mHSPC at a tertiary referral center in Korea between April 2023 and March 2024. Patients with a radical prostatectomy history or insufficient data were excluded.

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Importance: An accurate noninvasive biomarker test is needed for the early diagnosis of bladder cancer.

Objective: To evaluate the performance of a urinary DNA methylation test (PENK methylation) and compare its diagnostic accuracy with that of the nuclear matrix protein 22 (NMP22) test or urine cytology test.

Design, Setting, And Participants: In this prospective multicenter study at 10 sites in the Republic of Korea, individuals 40 years and older with hematuria undergoing cystoscopy within 3 months between March 11, 2022, and May 30, 2024, participated.

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Objective: To assess the impact of age on cancer-specific mortality (CSM) and other-cause mortality (OCM) in patients undergoing radical nephrectomy with thrombectomy (RNTx) for renal cell carcinoma (RCC) with venous thrombus.

Patients And Methods: We retrospectively analyzed 196 patients who underwent RNTx for RCC with venous thrombus between 1990 and 2018 at a single tertiary referral center. Patients were categorized into three age groups: <60, 60-69, and ≥70 years.

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Background: Diapers are commonly used by older patients with urination disorders. A smart diaper system (SDS) may be able to estimate the weight of urine comparably to conventional measurements made by weighing diapers.

Objective: The aim of the current research is to determine the degree of accuracy of an SDS technology specifically designed for the management of urination routines and the use of incontinence pads in older adults.

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Digital positron emission tomography/computed tomography (PET/CT) has shown enhanced sensitivity and spatial resolution compared with analog PET/CT. The present study compared the diagnostic performance of digital and analog PET/CT with [Ga]Ga-PSMA-11 in prostate cancer patients who experienced biochemical recurrence (BCR) after prostatectomy. Forty prostate cancer patients who experienced BCR, defined as serum prostate-specific antigen (PSA) concentrations exceeding 0.

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Purpose: We evaluated the risk factors associated with failure to complete gemcitabine-cisplatin (GP) neoadjuvant chemotherapy (NAC) for muscle-invasive bladder cancer (MIBC).

Materials And Methods: In total, 231 patients with MIBC treated with NAC before undergoing radical cystectomy between 2013 and 2022 participated in this study. Logistic regression analysis was performed to assess the relationship between the likelihood of incomplete NAC and clinical and demographic variables, including age, sex, hypertension (HTN), diabetes mellitus (DM), prechemotherapy glomerular filtration rate, clinical T stage, clinical N stage, and body mass index (BMI).

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Purpose: The study aimed to investigate the impact of adjuvant chemotherapy on time to recurrence (TTR) and overall survival (OS) in patients with histologic variants of upper tract urothelial carcinoma (VUTUC) following radical nephroureterectomy (RNU).

Materials And Methods: A retrospective review of 131 VUTUC patients' medical records, from a pool of 368 non-metastatic localized or locally advanced UTUC cases, treated at a single tertiary referral center between January 2011 and January 2021. The intervention was adjuvant chemotherapy administration post-RNU.

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Purpose: This retrospective study aimed to assess the correlation between preoperative sarcopenia and long-term oncologic outcomes in patients undergoing radical cystectomy for bladder cancer.

Methods: We included 528 patients who underwent radical cystectomy for bladder cancer between 2000 and 2010 at Asan Medical Center, Seoul, Korea. Preoperative skeletal muscle mass was quantified by analyzing computed tomography images at the third lumbar vertebra.

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Purpose: Pathologic T3b (pT3b) prostate cancer, characterized by seminal vesicle invasion (SVI), exhibits variable oncological outcomes post-radical prostatectomy (RP). Identifying prognostic factors is crucial for patient-specific management. This study investigates the impact of bilateral SVI on prognosis in pT3b prostate cancer.

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Purpose: This study aimed to evaluate the prognostic impact of the preoperative C-reactive protein to albumin ratio (CAR) on progression-free survival (PFS) and cancer-specific survival (CSS) in patients with upper urinary tract urothelial carcinoma (UTUC) undergoing radical nephroureterectomy (RNU).

Methods: A retrospective analysis was conducted using data from a single-center nephroureterectomy registry between January 2011 and December 2017. Participants were categorized into high and low CAR groups based on the optimal CAR cut-off value determined using the Youden index.

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Background: This study aimed to investigate the role of radical prostatectomy (RP) among clinical nodal metastasis prostate cancer and whether histological confirmation of lymph node metastasis through surgery can help with treatment.

Patients And Methods: After excluding patients with distant metastatic prostate cancer or neoadjuvant androgen deprivation therapy, 42 patients with clinical nodal metastasis who underwent RP at our institution were included in the study. We classified them as having or not having pathological lymph node metastasis.

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Purpose: To extend the indications of kidney-sparing surgery (KSS) for ureter cancer by comparing the oncological outcomes between patients with upper tract urothelial carcinoma (UTUC) who underwent radical nephroureterectomy (RNU) or KSS.

Methods: We retrospectively reviewed 708 patients with UTUC who underwent RNU (N = 646) or KSS (N = 62) between 2011 and 2019 to analyze the oncologic outcomes and prognostic factors. Subgroup analyses were performed for patients with unifocal ureteral urothelial carcinoma (UC).

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Purpose: To evaluate the impact of preoperative renal impairment on the oncological outcomes of patients with urothelial carcinoma who underwent radical cystectomy.

Materials And Methods: We retrospectively reviewed the medical records of patients with urothelial carcinoma who underwent radical cystectomy from 2004 to 2017. All patients who underwent preoperative Tc-diethylenetriaminepentaacetic acid renal scintigraphy (DTPA) were identified.

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Purpose: This study aims to evaluate the association of serum lipid profile on prostate cancer (PC) risk and aggressiveness.

Methods: Men who underwent prostate biopsy between January 2005 and December 2015 were retrospectively analyzed. The association between lipid profile and the risk, stage, and Gleason grade group (GG) of the PC were investigated.

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Article Synopsis
  • The study examines the suitability of kidney donors with controlled hypertension who are on 1 or 2 antihypertensive medications, particularly considering concerns about white-coat hypertension.
  • A comparison was made between 97 hypertensive donors and matched nonhypertensive donors regarding their estimated glomerular filtration rate (eGFR) after donation.
  • Results showed no significant differences in eGFR between the two groups, supporting the idea that controlled hypertensive individuals can safely donate kidneys, thus reinforcing existing guidelines.
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Purpose: This study aimed to compare the long-term oncological outcomes of robot-assisted radical prostatectomy (RARP) vs. open radical prostatectomy (ORP) in pathologically proven prostate cancer with seminal vesicle invasion (SVI).

Methods: We performed a cohort study involving men who underwent radical prostatectomy for prostate cancer with SVI.

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Context.—: Grade Group assessed using Gleason combined score and tumor extent is a main determinant for risk stratification and therapeutic planning of prostate cancer.

Objective.

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Background: Solo-surgery can be defined as a practice of a surgeon operating alone using a camera holder, without other surgical members except for a scrub nurse. This study was designed to evaluate the feasibility and safety of solo-surgeon pure laparoscopic donor nephrectomy.

Methods: The study protocol was approved by the Institutional Review Board of Asan Medical Center, Seoul, Korea.

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Background: We aimed to describe the effect of preoperative sarcopenia on oncologic outcomes of organ-confined renal cell carcinoma (RCC) after radical nephrectomy.

Patients And Methods: A total of 632 patients with pT1-2 RCC who underwent radical nephrectomy between 2004 and 2014 were retrospectively analyzed. From preoperative computerized tomography (CT) scans, skeletal muscle index (SMI) was measured and gender-specific cutoff values at third lumbar vertebra of 52.

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Purpose: Statin use is reportedly associated with the risk of prostate cancer, outcomes after treatment, and prostate cancer-specific mortality. We sought to determine the efficacy of adjuvant atorvastatin in prostate cancer after radical prostatectomy.

Patients And Methods: In this randomized, double-blind trial, we assigned patients with pathologic high-risk prostate cancer to receive either low-dose atorvastatin (20 mg/day, = 183) or placebo ( = 181) for 1 year after radical prostatectomy.

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