Jung Kwon Kim

Seoul National University Hospital, Sŏul, Seoul, South Korea

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Publications (5)13.26 Total impact

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    ABSTRACT: To identify serial changes in the incidence of leukocyturia after photoselective-laser-vaporization-of-the-prostate (PVP), to determine whether postoperative leukocyturia could be associated with surgical outcomes and to identify predictors of persistent leukocyturia after PVP. A total of 102 men without leukocyturia on baseline urinalysis who underwent PVP were included in this prospective study. Treatment outcomes were assessed at 1-week, and 1-, 3-, 6- and 12-months postoperatively using International Prostate Symptom Score (IPSS), Overactive Bladder Symptom Score (OABSS), uroflowmetry, post-void residual (PVR), urinalysis, urine culture and serum PSA. The incidences of leukocyturia and dysuria at 1-week, and 1-, 3- and 6-months postoperatively were 100.0%, 51.0%, 19.6% and 0.0%, and 30.3%, 25.4%, 5.9%, and 0.0%, respectively. Only one case with bacteriuria occurred through the entire follow-up period. At 1-month postoperatively, decreases of subtotal storage symptoms score, quality-of-life (QOL) index and total OABSS in patients without leukocyturia were significantly greater than in those with leukocyturia. At 3-months postoperatively, patients without leukocyturia showed the greater improvement in subtotal storage symptoms score, total OABSS, QOL index, bladder voiding efficiency and PVR compared with those with leukocyturia. On logistic regression analysis, age, PSA, prostate size and amount of energy utilized were independent predictors of persistent leukocyturia 3-months after surgery. Leukocyturia is observed in all patients immediately after PVP, but its incidence decreases with time. It may have adverse effects on treatment outcomes. Also, older age, higher serum PSA, larger prostate size and greater amount of energy utilized may be risk factors of persistent leukocyturia. Copyright © 2015 Elsevier Inc. All rights reserved.
    No preview · Article · Jul 2015 · Urology
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    ABSTRACT: Purpose: To study the surgical outcomes of radical nephrectomy with thrombectomy and to determine prognostic factors for survival of Korean patients with renal cell carcinoma (RCC) and venous tumor thrombus. Materials and methods: A total of 124 patients with RCC and venous tumor thrombus who underwent radical nephrectomy and thrombectomy were included in this retrospective study. Cancer-specific survival (CSS) and recurrence-free survival (RFS) rates were analyzed retrospectively according to various prognostic factors. Results: The median overall follow-up period for all patients was 29.0 months; the median survival period was 50.0 months. The 2-, 5- and 10-year CSS rates for all patients were 64.2%, 47.1% and 31.7%, respectively. Those for 76 patients (pN0/xM0) without metastasis at presentation were 80.9%, 64.5% and 44.9%, respectively. For all patients, lower body mass index (BMI), higher Fuhrman grade, presence of symptoms, perinephric fat invasion, invasion of inferior vena cava (IVC) wall, lymph node (LN) involvement and distant metastasis at presentation were independent predictors for decreased CSS on multivariate analysis, while thrombus level was not. For non-metastatic patients, lower BMI, presence of symptoms and tumor size were independently associated with decreased CSS. In terms of RFS, lower BMI, presence of perinephric fat invasion were prognostic factors for recurrence. Conclusions: Our data suggest that obesity is independently associated with better survival or lower risk of tumor recurrence in Korean patients undergoing radical nephrectomy with tumor thrombectomy. Also, our results indicate that Fuhrman grade, presence of symptoms, perinephric fat invasion and invasion of IVC wall, LN involvement and distant metastasis at presentation are independent predictors for survival.
    Preview · Article · May 2013 · International braz j urol: official journal of the Brazilian Society of Urology
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    ABSTRACT: Study Type – Prognosis (cohort series) Level of Evidence 2b What's known on the subject? and What does the study add? This study reports that patients aged 70 years or older have a higher possibility of locally advanced cancer than younger patients. Instead of conservative management, radical eradication of clinically localized prostate cancer should be actively considered in well-selected healthy patients older than 70 years.
    No preview · Article · Feb 2012 · BJU International
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    ABSTRACT: The most popular technique of photoselective vaporization of the prostate (PVP) for benign prostatic hyperplasia (BPH) involves vaporization only. We developed a modified vaporization-resection technique that consists of vaporizing a prostate along outlined margins and retrieving the wedge-shaped prostate tissue. We report the operative procedure and clinical outcomes of our technique with the GreenLight high performance system (HPS). A total of 104 patients with a prostate volume greater than 40 mL who underwent PVP were included in this retrospective study. Forty patients were treated with the vaporization-only technique (Group non-S) and 64 patients with the Seoul technique (group S). The clinical outcomes were assessed at 1, 3, 6, and 12 months postoperatively using the International Prostate Symptom Score (IPSS), quality of life (QoL) score, maximum flow rate (Q(max.)), and postvoid residual urine volume (PVR). The Q(max.), PVR, IPSS, and QoL scores improved significantly from 1 to 12 months after the PVP compared with the baseline in both groups (P <.05). In the S group, the volume reduction of the prostate per operative time, lasing time, and laser energy were significantly smaller than in the non-S group (P <.05). In general, the overall complication rates were low in the 2 groups. Two patients were found to have prostate cancer on pathology. The Seoul technique for PVP showed good short-term efficacy and safety for the treatment of BPH. With this technique, we can conserve on the operative time, lasing time, and energy, and obtain prostatic tissue for pathologic evaluation.
    No preview · Article · Oct 2010 · Urology

  • No preview · Article · Apr 2010 · The Journal of Urology