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Lee SY, Lee SD, Kim SO. Current status of female urologists in Korea. Investig Clin Urol 2023; 64:541-545. [PMID: 37932564 PMCID: PMC10630693 DOI: 10.4111/icu.20230159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 09/22/2023] [Accepted: 10/03/2023] [Indexed: 11/08/2023] Open
Abstract
PURPOSE The number of female urologists, including residents, has gradually increased and has recently exceeded 50. This study aimed to investigate the current status of female urologists in South Korea. MATERIALS AND METHODS Total number of female and male urology specialists and residents, annual new Korean board-certified female and male urologists recent 5 years were obtained from the Korean Urological Association database. Data on working status, region, and subspecialty were collected via a telephone survey. RESULTS Fifty-four female urologists including 40 urology specialists and 14 urology residents participated in the study. Since the first female doctor received a urology board in 1999, zero to five female doctors have obtained urology board annually. Approximately 50% of female specialists and residents worked in metropolitan areas. The proportion of female urology physicians working in university hospitals was 52.5%. Three had only urology-oncology subspecialties, while the rest had non-oncologic or both subspecialties. CONCLUSIONS Female urologists are evenly distributed across the country, following the population distribution of Korea. Female urologists are employed in various fields. More female urologists chose non-oncology and double majors as subspecialties than they chose oncology. It is necessary to pay attention to female urologists, who form a minority within the Korean Urological Association, so that they can be continuously produced and actively engaged in various fields.
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Affiliation(s)
- Seo Yeon Lee
- Department of Urology, Myongji Hospital, Hanyang University College of Medicine, Goyang, Korea
| | - Sang-Don Lee
- Department of Urology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea.
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Shin JH, Jeong SJ, Kim SO, Oh CY, Chung KJ, Shin DG, Kim TH, Kwon J, Shin JH, Bae WJ, Lee KS, Choo MS. A Randomized, Double-Blind, Placebo-Controlled, Bridging Study to Evaluate the Efficacy and Safety of Vibegron in Treating Korean Patients With Overactive Bladder. Int Neurourol J 2023; 27:106-115. [PMID: 37401021 DOI: 10.5213/inj.2346022.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 05/27/2023] [Indexed: 07/05/2023] Open
Abstract
PURPOSE Vibegron, a novel, potent β3 agonist, has been approved for clinical use in overactive bladder (OAB) treatment in Japan and the Unites States. We performed a bridging study to investigate the efficacy and safety of a daily 50-mg vibegron (code name JLP-2002) dose in Korean patients with OAB. METHODS A multicenter, randomized, double-blind, placebo-controlled study was conducted from September 2020 to August 2021. Adult patients with OAB with a symptom duration of more than 6 months entered a 2-week placebo run-in phase. Eligibility was assessed at the end of this phase and selected patients entered a double-blind treatment phase after 1:1 randomization to either the placebo or vibegron (50 mg) group. The study drug was administered once daily for 12 weeks and follow-up visits were scheduled at weeks 4, 8, and 12. The primary endpoint was the change in mean daily micturition at the end of treatment. The secondary endpoints included changes in OAB symptoms (daily micturition, nocturia, urgency, urgency incontinence, and incontinence episodes, and mean voided volume per micturition) and safety. A constrained longitudinal data model was used for statistical analysis. RESULTS Patients who took daily vibegron had significant improvements over the placebo group in both primary and secondary endpoints, except for daily nocturia episodes. The proportions of patients with normalized micturition and resolution of urgency incontinence and incontinence episodes were significantly higher in vibegron group than in the placebo. Vibegron also improved the patients' quality of life with higher satisfaction rates. The incidence of adverse events in the vibegron and placebo groups was similar with no serious, unexpected adverse drug reactions. No abnormality in electrocardiographs was observed as well as no significant increase in postvoid residual volume. CONCLUSION Once daily vibegron (50 mg) for 12 weeks was effective, safe, and well-tolerated in Korean patients with OAB.
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Affiliation(s)
- Jung Hyun Shin
- Department of Urology, Ewha Womans University Mokdong Hospital, Seoul, Korea
| | - Seong Jin Jeong
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Cheol Young Oh
- Department of Urology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Kyung Jin Chung
- Department of Urology, Gachon University Gil Medical Center, Incheon, Korea
| | - Dong Gil Shin
- Department of Urology, Pusan Nation University School of Medicine, Busan, Korea
| | - Tae Hyo Kim
- Department of Urology, Dong-A University College of Medicine, Busan, Korea
| | - Joonbeom Kwon
- Department of Urology, Daegu Fatima Hospital, Daegu, Korea
| | - Ju-Hyun Shin
- Department of Urology, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Woong Jin Bae
- Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kyu-Sung Lee
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Myung-Soo Choo
- Department of Urology, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, Korea
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Cho HJ, Jiao HY, Kim SO. Decreased Expression of Urethral Caveolin-1, -2, and -3 in the Rat Model of Overactive Bladder: Potential Mediator of Functional Interaction of Urethra and Urinary Bladder. Int Neurourol J 2023; 27:47-54. [PMID: 37015724 PMCID: PMC10073002 DOI: 10.5213/inj.2244236.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 02/07/2023] [Indexed: 04/03/2023] Open
Abstract
Purpose: To investigate the effect of detrusor overactivity (DO) on the urethral expression of caveolin (CAV)-1, -2, and -3 of urethra in an animal model of cyclophosphamide (CYP)-induced cystitis rat.Methods: Female Sprague-Dawley rats were divided into the control group (n=20) and the cystitis group (n=20). Cystitis was induced by intraperitoneal injection of CYP (200 mg/kg). An urodynamic study was done 3 days after the CYP injection to measure functional change of the urinary bladder and urethra. Cellular localization and expression of CAV-1, -2, and -3 in the rat urethra were determined by immunohistochemistry (IHC) and Western blot.Results: Urodynamic experiments demonstrated a decreased contraction interval in the cystitis group compared to the control (3.9±1.0 minutes vs. 6.6±1.2 minutes, P<0.05). Conversely, contraction pressure increased significantly in the cystitis group compared to the control (22.4±0.7 mmHg vs. 11.5±0.4 mmHg, P<0.05). The urethral pressure was decreased in the cystitis group compared to the control (4.05 ±2.5 mmHg vs. 5.8 ±2.8 mmHg, P <0.05). The IHC and Western blot data showed that CAV-1, -2, and -3 expression decreased significantly in the cystitis group compared control group (P<0.05).Conclusions: The decreased urethral CAV-1, -2, and -3 in the DO rats suggests that CAVs might be related with the functional change of urethra in association with DO of urinay bladder.
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Yu SH, Lim DG, Kim SO. Clinical significance of distally located periurethral calcification in patients with lower urinary tract symptoms of benign prostate hyperplasia. Asian J Androl 2022; 25:361-365. [PMID: 35946225 DOI: 10.4103/aja202245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
This study evaluated the association of periurethral calcification (PUC) with uroflowmetric parameters and symptom severity in male patients with lower urinary tract symptoms (LUTS) of benign prostatic hyperplasia (BPH). The data were collected from a prospectively maintained database of 1321 men with LUTS of BPH who visited Chonnam National University Hospital (Gwang-ju, Korea) from January 2015 to December 2019. PUC severity and location were evaluated on the midsagittal plane during transrectal ultrasonography. Relationships among age, prostate-related parameters, International Prostate Symptom Score (IPSS), and uroflowmetric parameters were assessed. Among the 1321 patients in this study, 530 (40.1%) had PUC. Patients with PUC had significantly higher IPSS (mean ± standard deviation [s.d.]: 15.1 ± 8.7 vs 13.1 ± 7.9; P < 0.001) and lower peak flow rate (Qmax; mean ± s.d.: 12.4 ± 6.6 ml s-1 vs 14.7 ± 13.3 ml s-1; P < 0.001), compared with patients who did not have PUC. Analyses according to PUC severity revealed that patients with severe PUC had higher prostate-specific antigen (PSA) level (P = 0.009), higher total IPSS (P < 0.001), lower Qmax (P = 0.002), and smaller prostate volume (P < 0.001), compared with patients who had non-severe (mild or moderate) PUC. Multivariate analysis showed that distal PUC was independently associated with high total IPSS (P = 0.02), voiding symptom score (P = 0.04), and storage symptom score (P = 0.023), and low Qmax (P = 0.015). In conclusion, PUC was significantly associated with worse LUTS parameters in terms of IPSS and Qmax. Furthermore, distally located PUC was independently associated with worse LUTS of BPH in men.
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Affiliation(s)
- Seong Hyeon Yu
- Department of Urology, Chonnam National University Medical School, Gwang-ju 61469, Korea
| | - Do Gyeong Lim
- Department of Urology, Chonnam National University Medical School, Gwang-ju 61469, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwang-ju 61469, Korea
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Kim JH, Yu SH, Kim SO. Decreased urothelial expression of caveolin 1 and 2 in aging rats showing detrusor overactivity: Potential association with aging bladder. Investig Clin Urol 2021; 62:690-696. [PMID: 34729968 PMCID: PMC8566782 DOI: 10.4111/icu.20210284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/29/2021] [Accepted: 09/14/2021] [Indexed: 11/18/2022] Open
Abstract
PURPOSE The purpose of this study was to investigate the effect of aging on bladder function and caveolin protein expression in rat urothelium. MATERIALS AND METHODS Female Sprague-Dawley rats were divided into the following two groups: young age control group (12 weeks) and old-aged group of rats (80 weeks). Urodynamic measurements were taken to compare the contraction interval and the contraction pressure between the two groups. The expression and cellular localization of caveolin 1 and 2 in the urothelium of the rat urinary bladder were determined by Western blot and immunofluorescence microscopy. RESULTS In cystometrograms, the contraction interval (min) was significantly shorter in the old-aged group (3.7±0.5 min) than in the young age control group (6.2±0.8 min). Also, the average contraction pressure (mmHg) was lower in the old-aged group (8.4±0.6 mmHg) than in the young age control group (13.2±1.3 mmHg). Caveolin 1 and 2 were expressed in the subepithelial area in the urothelium. The protein expression of both caveolin 1 and 2 was significantly lower in the old-aged group than in the young age control group. CONCLUSIONS Aging caused a significant change in the expression of caveolin 1 and 2 in the urothelium of the rat urinary bladder. These findings suggest that these molecules might have specific roles in the functional change of the urinary bladder that occurs in association with aging.
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Affiliation(s)
- Jae Hyeon Kim
- Department of Urology, Chonnam National University Medical School, Research Institute of Medical Sciences, Gwangju, Korea
| | - Seong Hyeon Yu
- Department of Urology, Chonnam National University Medical School, Research Institute of Medical Sciences, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Research Institute of Medical Sciences, Gwangju, Korea.
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Kang J, Oh YM, Lee JH, Kim EK, Lim SY, Kim WJ, Yoon HI, Kim TH, Park TS, Kim SO, Lee SW, Lee SD, Lee JS. Distinctive patterns of pulmonary function change according to baseline lung volume and diffusing capacity. Int J Tuberc Lung Dis 2021; 24:597-605. [PMID: 32553011 DOI: 10.5588/ijtld.19.0401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING: Multicentre retrospective study in South Korea.OBJECTIVE: To longitudinally evaluate changes in lung volume and diffusing capacity for carbon monoxide (DLCO) with forced expiratory volume in 1 sec (FEV1).DESIGN: A total of 155 patients with chronic obstructive pulmonary disease (COPD), whose pulmonary function parameters were measured annually for 5 years, were selected from a prospective cohort in South Korea. A random coefficients model was used to estimate mean annual FEV1, lung volume parameter and DLCO change rates.RESULTS: Patients were classified into four groups based on baseline DLCO and residual volume/total lung capacity (RV/TLC) measurements. The annual FEV1 decline rate was greater in patients with low DLCO than in those with normal DLCO, with the greatest decline occurring in patients with low DLCO and normal RV/TLC. RV and RV/TLC declined in patients with high RV/TLC, whereas these increased in patients with normal RV/TLC. DLCO decreased longitudinally in all four groups, with the greatest decline occurring in patients with normal DLCO and normal RV/TLC.CONCLUSIONS: Different subgroups of patients with COPD exhibited distinctive pulmonary function change patterns. Baseline DLCO and RV/TLC may be used as physiological markers to predict long-term changes in pulmonary function.
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Affiliation(s)
- J Kang
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - Y-M Oh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - J-H Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Bundang CHA Hospital, College of Medicine, CHA University, Seongnam
| | - E K Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Bundang CHA Hospital, College of Medicine, CHA University, Seongnam
| | - S Y Lim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul
| | - W J Kim
- Department of Internal Medicine, College of Medicine, Kangwon National University, Chuncheon
| | - H I Yoon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam
| | - T-H Kim
- Division of Pulmonology, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri
| | - T S Park
- Division of Pulmonology, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri
| | - S O Kim
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, Seoul, South Korea
| | - S W Lee
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - S-D Lee
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - J S Lee
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul
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Oh JY, Chung HS, Yu SH, Kim MS, Yu HS, Hwang EC, Oh KJ, Kim SO, Jung SI, Kang TW, Park K, Kwon D. Comparison of surgical outcomes between lateral and posterior approaches for retroperitoneal laparoscopic adrenalectomy: A single surgeon's experience. Investig Clin Urol 2020; 61:180-187. [PMID: 32158969 PMCID: PMC7052412 DOI: 10.4111/icu.2020.61.2.180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 09/25/2019] [Indexed: 01/02/2023] Open
Abstract
Purpose To compare surgical outcomes between the lateral and the posterior approach for retroperitoneal laparoscopic adrenalectomy (RLA). Materials and Methods We retrospectively reviewed the records of 130 patients who underwent RLA for adrenal tumors by a single surgeon between January 2015 and December 2018. Patient characteristics and perioperative outcomes were analyzed and compared between two surgical groups: lateral approach (n=56) and posterior approach (n=74). Results There were no significant differences in perioperative outcomes between the two groups except for operative time (lateral approach, 105.4±41.21 minutes vs. posterior approach, 71.5±31.51 minutes; p=0.001). In the lateral approach group, two patients (3.6%) underwent open conversion, but there were no major complications in either group (Clavien-Dindo classification ≥3). Male sex was associated with an operative time of ≥90 minutes in the univariate analysis (p=0.019), but this effect did not remain significant in the multivariate analysis. In the multivariate analysis, large tumor size (>5 cm; p=0.020) and preoperative diagnosis of malignancy (p=0.043) were significantly associated with an operative time of ≥90 minutes. Conclusions Both the lateral and posterior approaches for RLA were performed safely with similar operative outcomes and are therefore comparable options for the treatment of adrenal tumors. In addition, large tumor size and preoperative diagnosis of malignancy are associated with longer operative times.
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Affiliation(s)
- Ju Yong Oh
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Seok Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seong Hyeon Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Myung Soo Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kyung Jin Oh
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Il Jung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dongdeuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Chung MS, Choi YJ, Kim SO, Lee YS, Hong JY, Lee JH, Baek JH. A Scoring System for Prediction of Cervical Lymph Node Metastasis in Patients with Head and Neck Squamous Cell Carcinoma. AJNR Am J Neuroradiol 2019; 40:1049-1054. [PMID: 31072971 DOI: 10.3174/ajnr.a6066] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 04/13/2019] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND PURPOSE An accurate and comprehensive assessment of lymph node metastasis in patients with head and neck squamous cell cancer is crucial in daily practice. This study constructed a predictive model with a risk scoring system based on CT characteristics of lymph nodes and tumors for patients with head and neck squamous cell carcinoma to stratify the risk of lymph node metastasis. MATERIALS AND METHODS Data included 476 cervical lymph nodes from 191 patients with head and neck squamous cell carcinoma from a historical cohort. We analyzed preoperative CT images of lymph nodes, including diameter, ratio of long-to-short axis diameter, necrosis, conglomeration, infiltration to adjacent soft tissue, laterality and T-stage of the primary tumor. The reference standard comprised pathologic results. Multivariable logistic regression analysis was performed to develop the risk scoring system. Internal validation was performed with 1000-iteration bootstrapping. RESULTS Shortest axial diameter, ratio of long-to-short axis diameter, necrosis, and T-stage were used to develop a 9-point risk scoring system. The risk of malignancy ranged from 7.3% to 99.8%, which was positively associated with increased scores. Areas under the curve of the risk scoring systems were 0.886 (95% CI, 0.881-0.920) and 0.879 (95% CI, 0.845-0.914) in internal validation. The Hosmer-Lemeshow goodness-of-fit test indicated that the risk scoring system was well-calibrated (P = .160). CONCLUSIONS We developed a comprehensive and simple risk scoring system using CT characteristics in patients with head and neck squamous cell carcinoma to stratify the risk of lymph node metastasis. It could facilitate decision-making in daily practice.
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Affiliation(s)
- M S Chung
- From the Department of Radiology (M.S.C.), Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Y J Choi
- Departments of Radiology and Research Institute of Radiology (Y.J.C., J.H.L., J.H.B.)
| | - S O Kim
- Clinical Epidemiology and Biostatistics (S.O.K.)
| | | | - J Y Hong
- Oncology (J.Y.H.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J H Lee
- Departments of Radiology and Research Institute of Radiology (Y.J.C., J.H.L., J.H.B.)
| | - J H Baek
- Departments of Radiology and Research Institute of Radiology (Y.J.C., J.H.L., J.H.B.)
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Abstract
RATIONALE Persistent Müllerian duct syndrome (PMDS) is rare form of male pseudohermaphroditism characterized by the presence of uterus and fallopian tubes with normal external genitalia and secondary sexual characteristics. Transverse testicular ectopia (TTE) is also a rare form of testicular ectopia that may be associated with PMDS. PATIENT CONCERNS We present a 2-year-old boy who presented with bilateral non-palpable testes with left inguinal mass. DIAGNOSIS TTE with PMDS. INTERVENTIONS On exploration, both testes were present in the left inguinal region. Uterus and fallopian tubes were located between the testes. A hysterectomy was perfomed with resection of the underdeveloped fallopian tubes. Bilateral orchiopexy was performed by placing both gonads into subdartos pouches in each scrotum with transseptal approach. OUTCOMES Both testes were palpable in both the scrotum at 1-year postoperative follow-up and we are planning a regular follow-up. LESSONS In case of TTE with PMDS, optimal surgical approach with orchiopexy and excision of Müllerian duct should be needed. A long-term postoperative follow-up is necessary for assessment of malignant transformation and infertility.
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Affiliation(s)
| | | | | | - Sung-Sun Kim
- Pathology, Chonnam National University Medical School, Gwangju, Korea
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Oh JH, Chung HS, Yu HS, Kang TW, Kwon D, Kim SO. Hydrocelectomy via scrotal incision is a valuable alternative to the traditional inguinal approach for hydrocele treatment in boys. Investig Clin Urol 2018; 59:416-421. [PMID: 30402575 PMCID: PMC6215779 DOI: 10.4111/icu.2018.59.6.416] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 10/01/2018] [Indexed: 11/30/2022] Open
Abstract
Purpose Few studies have explored the treatment of isolated communicating hydroceles via scrotal incision. We prospectively evaluated the surgical outcomes of such treatment in boys with hydroceles compared with that using traditional, inguinal incision hydrocelectomy. Materials and Methods Of 347 boys aged 0–12 years who were diagnosed as hydrocele on ultrasonography, 173 boys were assigned to the scrotal incision hydrocelectomy group (group I, n=173) and 172 boys were assigned to the traditional inguinal incision hydrocelectomy group (group II, n=172), and finally 156 boys in group I and 156 boys in group II were included in this study. Surgical outcomes, including postoperative complications and hydrocele relapse rates, were compared between groups. Results The overall success rates were similar in both groups (group I, 96.8%; group II, 89.1%; p=0.740). The operation time and hospital stay were significantly shorter in group I (30.94±3.95 minutes and 3.94±0.30 days) than in group II (38.02±7.12 minutes and 4.24±0.99 days; p<0.001 and p=0.009, respectively). The postoperative complication rate was lower in group I than in group II (3.2% vs. 10.9%, p=0.740). Conclusions Scrotal incision hydrocelectomy in boys was associated with shorter operative time and hospital stay, and a lower postoperative complication rate, than was the inguinal incision approach. The scrotal incision technique might be an easy and effective alternative treatment when used to treat hydroceles in boys as well as inguinal incision approach.
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Affiliation(s)
- Jeong Hoon Oh
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Seok Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dongdeuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Chung HS, Kim SO, Kwon D. Urethral mobility and Point Aa of the Pelvic Organ Prolapse Quantification (POP-Q) system before and after midurethral sling operation. Low Urin Tract Symptoms 2018; 11:O117-O120. [PMID: 29938931 DOI: 10.1111/luts.12228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 03/08/2018] [Accepted: 05/08/2018] [Indexed: 12/31/2022]
Abstract
OBJECTIVE The aim of the present study was to verify the usefulness of Point Aa as a substitute marker of the Q-tip angle and urethral mobility before and after midurethral sling operation for the treatment of stress urinary incontinence (SUI) in women. METHODS In this study, 118 women presenting with SUI who underwent the tension-free vaginal tape obturator (TVTO) procedure were prospectively examined and followed-up for ≥6 months after operation. Spearman's correlation coefficient was used to assess the degree of correlation between Point Aa of the Pelvic Organ Prolapse Quantification system and Q-tip angles before and after midurethral sling surgery. RESULTS There were significant postoperative changes in Point Aa (from -0.4 ± 1.9 to -2.7 ± 0.6; P = .001) and Q-tip angle (from 58.7 ± 19.4 to 15.4 ± 17.5 degrees; P =.001) compared with preoperative values. A fair correlation between Point Aa position and straining Q-tip angle was found before (r = 0.45, P = .05) and after (r = 0.49, P = .04) the procedure, with no significant difference in values before and after the procedure (P = .62). CONCLUSIONS The results of the present study show fair correlation between the Point Aa position and straining Q-tip angle before and after midurethral sling surgery. Point Aa could be used as an indicator of urethral mobility after the TVTO procedure in women with SUI.
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Affiliation(s)
- Ho Seok Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, South Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, South Korea
| | - Dongdeuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, South Korea
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Cho WY, Kim SC, Kim SO, Park S, Lee SD, Chung JM, Kim KD, Moon DG, Kim YS, Kim JM. Can recording only the day-time voided volumes predict bladder capacity? Investig Clin Urol 2018; 59:194-199. [PMID: 29744477 PMCID: PMC5934282 DOI: 10.4111/icu.2018.59.3.194] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 01/30/2018] [Indexed: 11/18/2022] Open
Abstract
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). Results Most voided volumes during day-time were showed between 30% and 80% of the maximal voided volume (MVV). The maximal voided volume during day-time (MVVDT) was significantly less than the MVV (179.5±71.1 mL vs. 227.0±79.2 mL, p<0.001). The correlation coefficients with the MVV were 0.801 for the estimated MVV using the MVVDT (MVVDT×1.25), which suggested a fairly strong relationship between the MVVDT×1.25 and the MVV. Conclusions The MVV derived from the FVC excluding the FMV was less than if the FMV had been included. When an accurate first morning voided volume cannot be obtained, as in patients with nocturnal enuresis, calculating MVVDT×1.25 allows estimation of the bladder capacity in place of the MVV.
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Affiliation(s)
- Won Yeol Cho
- Department of Urology, Dong-A University College of Medicine, Busan, Korea
| | - Seong Cheol Kim
- Department of Urology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sungchan Park
- Department of Urology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Sang Don Lee
- Department of Urology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Jae Min Chung
- Department of Urology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Kyung Do Kim
- Department of Urology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Du Geon Moon
- Department of Urology, Korea University College of Medicine, Seoul, Korea
| | - Young Sig Kim
- Department of Urology, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - Jun Mo Kim
- Department of Urology, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
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Chung HS, Kim MS, Yu HS, Hwang EC, Kim SO, Oh KJ, Jung SI, Kang TW, Park K, Kwon DD. Laparoscopic adrenalectomy using the lateral retroperitoneal approach: Is it a safe and feasible treatment option for pheochromocytomas larger than 6 cm? Int J Urol 2018; 25:414-419. [PMID: 29478297 DOI: 10.1111/iju.13524] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 12/07/2017] [Indexed: 12/27/2022]
Abstract
OBJECTIVES To evaluate the surgical feasibility of laparoscopic adrenalectomy using the lateral retroperitoneal approach for the treatment of large pheochromocytomas, and to identify the preoperative risk factors for intraoperative hypertension. METHODS We retrospectively reviewed 51 patients who underwent laparoscopic adrenalectomy using the lateral retroperitoneal approach for the treatment of pheochromocytomas. Patient characteristics and perioperative outcomes were analyzed and compared between the two study groups based on tumor size: group A (n = 27, ≤6 cm) and group B (n = 24, ˃6 cm). RESULTS There was no significant difference in preoperative characteristics between the two groups except for tumor size (P = 0.001) and urinary metanephrine (P = 0.011). Group B patients required longer operating time (P = 0.008), had a greater estimated blood loss (P = 0.001) and hemoglobin change (P = 0.002). However, no significant differences were observed in perioperative complications and mortality. Multivariate analysis showed that symptomatic pheochromocytomas (P = 0.004) and tumor size (P = 0.007) were significant risk factors for intraoperative hypertension. CONCLUSIONS Laparoscopic adrenalectomy using the lateral retroperitoneal approach for pheochromocytomas can be regarded as a treatment option, even for tumors measuring >6 cm. Symptomatic pheochromocytomas and large tumor size seem to represent risk factors for intraoperative hypertension.
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Affiliation(s)
- Ho Seok Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Myung Soo Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kyung Jin Oh
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Il Jung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dong Deuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Kim SO, Kang TW, Kwon D. Gender Preferences for Urologists: Women Prefer Female Urologists. Urol J 2017; 14:3018-3022. [PMID: 28299765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 01/05/2017] [Accepted: 01/30/2017] [Indexed: 06/06/2023]
Abstract
PURPOSE To investigate patients' preferences for the gender of their urologist. MATERIALS AND METHODS Patients who visited a urologic center were asked to complete a self-administered questionnaire on the preferences for the gender of their urologist as well as on their age, education level and employment status. RESULTS Of 270 respondents, 144 subjects (53%) had a preference for the gender of their urologist, whereas 126 subjects (47%) had no preference. Among 154 female respondents, 56 (36.4%) patients had no preference;96 (62.3%) patients had preferences for female urologists; and only 2 (1.3%) patient preferred male urologists. Among 116 male respondents, 70 (60.3%) patients had no preference; 30 (25.9%) patients had preferences for male urologists; and 16 (13.8%) preferred female urologists. Of patients that did express a preference, 87.5% (126/144) preferred the same gender urologist, with 65.2% (30/46) of male patients preferring male urologists and 97.9% (96/98) of female patients preferring female urologists (p < .001). However, age and education level werenot correlated with gender preference. CONCLUSION More than half the female participants had a preference for the same gender of urologist, whereas the majority of male participants expressed no preference for the gender of their urologist. Furthermore, gender preference was not correlated with age and education level.
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Affiliation(s)
- Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea.
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dongdeuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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15
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Yu HS, Hwang JE, Chung HS, Cho YH, Kim MS, Hwang EC, Oh KJ, Kim SO, Jung SI, Kang TW, Kwon DD, Park K, Ryu SB, Jung SH, Hur YH, Noh JH, Kim MK, Seo IY, Kim CS, Kang SG, Kang SH, Cheon J. Is preoperative chronic kidney disease status associated with oncologic outcomes in upper urinary tract urothelial carcinoma? A multicenter propensity score-matched analysis. Oncotarget 2017; 8:66540-66549. [PMID: 29029534 PMCID: PMC5630434 DOI: 10.18632/oncotarget.16239] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 03/06/2017] [Indexed: 01/18/2023] Open
Abstract
Purpose The aim of this study was to determine the effect of preoperative chronic kidney disease (CKD) on the prognosis of patients with upper urinary tract urothelial carcinoma (UTUC) who had undergone radical nephroureterectomy (RNU). Results The median follow-up period was 31.1 months (interquartile range: 16.2-55.7 months). Among the study patients, 224 patients in the non-CKD group were selected via propensity score matching. The median recurrence-free, cancer-specific, and overall survival were significantly shorter for patients with preoperative CKD than for non-CKD patients (p = 0.001, p = 0.001, and p = 0.001, respectively). According to multivariable Cox regression analysis, preoperative CKD was related to worse recurrence-free (hazard ratio [HR]: 1.81, 95% confidence interval [CI]: 1.15-2.86, p = 0.011), cancer-specific (HR: 2.44, 95% CI: 1.44-4.14, p = 0.001), and overall survival (HR: 1.66, 95% CI: 1.15-2.40, p = 0.007). Methods A total of 566 patients who underwent RNU at 6 institutions from 2004 to 2014 were retrospectively reviewed. Of these patients, 342 had an estimated glomerular filtration rate (eGFR) ≥ 60 ml/min/1.73 m2 (non-CKD group) and 224 patients had an eGFR <60 ml/min/1.73 m2 (CKD group). To adjust for potential baseline confounders, 224 patients in the non-CKD group were selected by propensity matching. Clinicopathological variables and survival rates were compared between the 2 groups. Conclusions Preoperative CKD appears to be an important independent prognostic factor for oncologic outcomes in patients with UTUC.
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Affiliation(s)
- Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Jun Eul Hwang
- Department of Hemato-Oncology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Seok Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Yang Hyun Cho
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Myung Soo Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kyung Jin Oh
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Il Jung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dong Deuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Soo Bang Ryu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea.,Chonnam National University Research Institute of Medical Sciences, Gwangju, Korea
| | - Sung-Hoon Jung
- Department of Hemato-Oncology, Chonnam National University Medical School, Gwangju, Korea
| | - Young Hoe Hur
- Department of General Surgery, Chonnam National University Medical School, Gwangju, Korea
| | - Joon Hwa Noh
- Department of Urology, Kwangju Christian Hospital, Gwangju, Korea
| | - Myung Ki Kim
- Department of Urology, Chonbuk National University Medical School, Jeonju, Korea
| | - Ill Young Seo
- Department of Urology, Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, Iksan, Korea
| | - Chul-Sung Kim
- Department of Urology, Chosun University School of Medicine, Gwangju, Korea
| | - Sung Gu Kang
- Department of Urology, Korea University College of Medicine, Seoul, Korea
| | - Seok Ho Kang
- Department of Urology, Korea University College of Medicine, Seoul, Korea
| | - Jun Cheon
- Department of Urology, Korea University College of Medicine, Seoul, Korea
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Kim SW, Ahn JH, Yim SU, Cho YH, Shin BS, Chung HS, Hwang EC, Yu HS, Oh KJ, Kim SO, Jung SI, Kang TW, Kwon DD, Park K. Clinical factors associated with postoperative hydronephrosis after ureteroscopic lithotripsy. Investig Clin Urol 2016; 57:343-50. [PMID: 27617316 PMCID: PMC5017563 DOI: 10.4111/icu.2016.57.5.343] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 07/04/2016] [Indexed: 12/29/2022] Open
Abstract
Purpose This study aimed to determine the predictors of ipsilateral hydronephrosis after ureteroscopic lithotripsy for ureteral calculi. Materials and Methods From January 2010 to December 2014, a total of 204 patients with ureteral calculi who underwent ureteroscopic lithotripsy were reviewed. Patients with lack of clinical data, presence of ureteral rupture, and who underwent simultaneous percutaneous nephrolithotomy (PNL) were excluded. Postoperative hydronephrosis was determined via computed tomographic scan or renal ultrasonography, at 6 months after ureteroscopic lithotripsy. Multivariable analysis was performed to determine clinical factors associated with ipsilateral hydronephrosis. Results A total of 137 patients were enrolled in this study. The mean age of the patients was 58.8±14.2 years and the mean stone size was 10.0±4.6 mm. The stone-free rate was 85.4%. Overall, 44 of the 137 patients (32.1%) had postoperative hydronephrosis. Significant differences between the hydronephrosis and nonhydronephrosis groups were noted in terms of stone location, preoperative hydronephrosis, impacted stone, operation time, and ureteral stent duration (all, p<0.05). On multivariable analysis, increasing preoperative diameter of the hydronephrotic kidney (adjusted odds ratio [OR], 1.21; 95% confidence interval [CI], 1.12–1.31; p=0.001) and impacted stone (adjusted OR, 3.01; 95% CI, 1.15–7.61; p=0.031) independently predicted the occurrence of postoperative hydronpehrosis. Conclusions Large preoperative diameter of the hydronephrotic kidney and presence of impacted stones were associated with hydronephrosis after ureteroscopic stone removal. Therefore, patients with these predictive factors undergo more intensive imaging follow-up in order to prevent renal deterioration due to postoperative hydronephrosis.
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Affiliation(s)
- Sun Woo Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ji Hoon Ahn
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sang Un Yim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Yang Hyun Cho
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Bo Sung Shin
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Seok Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kyung Jin Oh
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Il Jung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dong Deuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Lee HS, Kim SO, Ahn K, Park K. All-Trans Retinoic Acid Increases Aquaporin 3 Expression in Human Vaginal Epithelial Cells. Sex Med 2016; 4:e249-e254. [PMID: 27461974 PMCID: PMC5121539 DOI: 10.1016/j.esxm.2016.07.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 06/23/2016] [Accepted: 07/04/2016] [Indexed: 01/20/2023] Open
Abstract
Introduction Water channel aquaporin 3 (AQP3) is an aquaglyceroporin that transports small neutral solutes and water. All-trans retinoic acid (ATRA), a member of the retinoid drug class, acts as a regulator in several biological processes. Aim To investigate the effect of ATRA on the expression of AQP3 in human vaginal epithelial cells. Methods Human vaginal mucosal epithelial cells (CRL2616) were treated with ATRA 0, 0.01, 0.1, and 1 μmol/L for 24 hours to examine the dose-dependent effects of ATRA and with ATRA 1 μmol/L for 0, 3, 6, 12, and 24 hours. Main Outcome Measures The expression of AQP3 and retinoic acid receptor (RAR) was determined by western blot analysis and reverse transcription polymerase chain reaction. Results AQP3 was detected in the cell membrane of human vaginal epithelial cells. ATRA increased the protein expression and mRNA levels of AQP3 in a dose-dependent manner (P < .05). ATRA also increased the protein expression of RARα (P < .05). Treatment of CRL2616 cells with an RAR antagonist (Ro 41-5253) significantly decreased AQP3 protein expression (P < .05). Conclusion ATRA mediated by RARα increased AQP3 gene and protein expression in human vaginal mucosal epithelial cells. These results imply that AQP3 regulated by ATRA could play an important role in the mechanism of vaginal lubrication.
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Affiliation(s)
- Hyun-Suk Lee
- Department of Urology, Chonnam National University Medical School, Sexual Medicine Research Center, Chonnam National University, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Sexual Medicine Research Center, Chonnam National University, Gwangju, Korea
| | - Kyuyoun Ahn
- Department of Anatomy, Chonnam National University Medical School, Sexual Medicine Research Center, Chonnam National University, Gwangju, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Sexual Medicine Research Center, Chonnam National University, Gwangju, Korea.
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Yu HS, Ryu JW, Kim SO, Kang TW, Kwon DD, Park K, Oh KJ. Hemostatic completion of percutaneous nephrolithotomy using electrocauterization and a clear amplatz renal sheath. Int Braz J Urol 2016; 42:170-1. [PMID: 27136486 PMCID: PMC4811245 DOI: 10.1590/s1677-5538.ibju.2015.0434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 10/18/2015] [Indexed: 11/29/2022] Open
Abstract
Background and Purpose A tubeless PCNL can reduce postoperative pain, the need for analgesics, hospital stay, and postoperative urinary leakage. However, perioperative or delayed bleeding remains the primary postoperative concern. We demonstrate a simple and cost-effective method to develop a clear nephrostomy tract after completion of a tubeless PCNL. Materials and Methods Four consecutive patients with renal calculi >3cm underwent a tubeless PCNL. We used a 24 Fr nephroscope and a 24 Fr transurethral resectoscope. Intraoperative urologist-directed percutaneous renal access was performed under fluoroscopy. After calculi removal, active bleeders were identified via a clear Amplatz renal sheath. The sheath provided excellent visualization of the nephrostomy tract for the detection of bleeders and surrounding structures. Bleeders were electrocauterized using a roller barrel electrode. During extraction of the renal sheath, the surgeon can confirm hemostasis in the tract and apply intermittent suction. Results Bleeding primarily originated from the torn calyeceal mucosa and the parenchyma. Tract electrocauterization was successful. All patients had mild hematuria, which resolved within two days. The average hemoglobin decrease was 1.65g/dL (0.8-2.1) and no patients required a transfusion. No perioperative complications occurred. On postoperative day 2, the patients could ambulate without a Foley catheter. During three months of follow-up, delayed bleeding or percutaneous urine leakage did not occur. Conclusions Electrocauterization with a roller barrel electrode and a clear Amplatz renal sheath is an effective method to obtain hemostasis after completion of a PCNL. Our technique is cost-effective and readily adapted without the need for additional instruments.
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Affiliation(s)
- Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Ji Won Ryu
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Dong Deuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Kyung Jin Oh
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
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Kim SO, Yu HS, Kwon D. Efficacy of Desmopressin to Treat Nocturnal Polyuria in Elderly Men: Effects on Sleep Quality. Urol Int 2016; 96:438-42. [PMID: 26836495 DOI: 10.1159/000443968] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 01/11/2016] [Indexed: 11/19/2022]
Abstract
BACKGROUND We investigated the efficacy of desmopressin in elderly patients with nocturnal polyuria (NP) to evaluate its effects on sleep quality. METHODS Patients with NP (defined as the nighttime urine production >33% of total 24-hour urine volume determined from a frequency-volume chart) were recruited. Desmopressin (0.2 mg) was treated orally at bedtime for 12 weeks. The participants completed the Medical Outcomes Study (MOS) Sleep Scale. RESULTS The mean patient age was 62.7 ± 13.0 (range 42-78 years). The mean symptom duration was 42.2 ± 39.7 months. The number of nocturia episodes (from 3.49 ± 1.83 to 2.03 ± 1.35, p = 0.01), nocturnal urine volume (p = 0.01), NP index (p = 0.01), and nocturia index (p = 0.01) decreased significantly after treatment with desmopressin. Among the MOS Sleep Scale categories, hours slept/night (p = 0.042), shortness of breath (p = 0.019), and adequacy of sleep (p = 0.001) changed significantly with a decrease in the number of nocturia episodes. Adverse events were mild. CONCLUSIONS Desmopressin is an effective treatment for NP and improved sleep quality in elderly men.
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Affiliation(s)
- Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Yim SU, Kim SW, Ahn JH, Cho YH, Chung H, Hwang EC, Yu HS, Oh KJ, Kim SO, Jung SI, Kang TW, Kwon DD, Park K. Neutrophil to Lymphocyte and Platelet to Lymphocyte Ratios Are More Effective than the Fournier's Gangrene Severity Index for Predicting Poor Prognosis in Fournier's Gangrene. Surg Infect (Larchmt) 2016; 17:217-23. [PMID: 26835748 DOI: 10.1089/sur.2015.126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND We investigated the value of the neutrophil to lymphocyte ratio (NLR) and platelet to lymphocyte ratio (PLR) as markers of mortality in patients with Fournier's gangrene. METHODS Records from 62 patients treated for Fournier's gangrene between 2003 and 2014 were reviewed retrospectively. Data were collected regarding medical history, symptoms, physical examination findings, admission laboratory tests, and the extent of body surface area involved (%). Fournier's Gangrene Severity Index score, NLR, and PLR were calculated. The data were assessed separately for surviving and deceased patients. RESULTS Of the 62 patients, 36 survived (58%, group 1) and 26 died (42%, group 2). Parameters that were statistically different between the two groups (p < 0.05) were the NLR, PLR, Fournier's Gangrene Severity Index score, and admission laboratory parameters, including body temperature, heart rate, bicarbonate, albumin, and serum calcium. The average body surface area affected in group 2 was statistically different from that of group 1 (6.0% versus 2.3%, p = 0.001). A high Fournier's Gangrene Severity Index score (>9), high NLR (>8), and high PLR (>140) were associated more frequently with group 2 patients. Multivariable regression analysis showed that high NLR (adjusted odds ratio [OR], 4.66; 95% confidence interval [CI], 1.25-17.3; p = 0.022) and high PLR (adjusted OR, 11.6; 95% CI, 2.7-49.5; p = 0.001) were independent prognostic factors for poor prognosis from Fournier's gangrene. However, the Fournier's Gangrene Severity Index score did not shown any statistically significant effect on mortality (p = 0.086). CONCLUSIONS The Fournier's Gangrene Severity Index scoring system was not associated with determining poor prognosis, however, high NLR and high PLR were associated with predictors of mortality in patients with Fournier's gangrene.
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Affiliation(s)
- Sang Un Yim
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Sun Woo Kim
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Ji Hoon Ahn
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Yang Hyun Cho
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Hoseok Chung
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Kyung Jin Oh
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Seung Il Jung
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Dong Deuk Kwon
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
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Seo YH, Kim SO, Yu HS, Kwon D. Leak point pressure at different bladder volumes in stress urinary incontinence in women: Comparison between Valsalva and cough-induced leak point pressure. Can Urol Assoc J 2016; 10:E23-7. [PMID: 26858783 DOI: 10.5489/cuaj.3329] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
INTRODUCTION We compared Valsalva leak point pressure (VLPP) in urodynamically proven stress urinary incontinence (SUI) in women at different bladder volumes; examined the relationship between VLPP and cough-induced leak point pressure (CLPP) compared by incontinence severity; and evaluated the influence of bladder volume on each leak point pressure (LPP). METHODS Women with urodynamically proven SUI who underwent serial VLPP and CLPP measurement at bladder volumes of 150, 200, 250, and 300 mL were included in this study (n=228). LPP determination was repeated two times in each subject after finishing one series of LPP measurement. LPP at different bladder volumes was compared by subjective symptom severity of Stamey grade. RESULTS Patients mean age was 51.3±7.6 years (range: 40-65 years). Stamey grade I, II, and III was assigned to 68 (29.8%), 102 (44.7%), and 58 (25.4%) patients, respectively. Mean CLPP was higher than VLPP (p=0.002) at every bladder volume. VLPP and CLPP were significantly decreased by the increase of bladder volume (p=0.001). The mean first positive LPPs were significantly lower at higher Stamey grade (p=0.004). CONCLUSIONS LPP is more frequently induced by cough than by the Valsalva maneuver. VLPP and CLPP decreased significantly with bladder filling and those with severe symptoms of SUI are more likely to have low LPP.
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Affiliation(s)
- Young Ho Seo
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dongdeuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Mun JH, Kim SO, Yu HS, Chung HS, Kwon D. Effects of desmopressin for the treatment of nocturnal polyuria in elderly women: impact on related sleep quality. Can Urol Assoc J 2015; 9:E770-4. [PMID: 26600882 DOI: 10.5489/cuaj.3097] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
INTRODUCTION We investigated the efficacy, safety, and impact of desmopressin on quality of sleep in treating nocturnal polyuria in elderly women. METHODS We recruited 60 women over 60 years old with lower urinary tract symptoms (LUTS), including nocturia, and with nocturnal polyuria. Nocturnal polyuria was defined as nighttime urine production exceeding 33% of the 24-hour total urine volume determined by a frequency volume (FV) chart. All patients failed to respond to treatment of their underlying disease and evening fluid restriction. Desmopressin 0.1 mg was administered orally at bedtime for 12 weeks. The participants completed a series of questionnaires on the Medical Outcomes Study (MOS) sleep scale and FV chart before and after treatment. RESULTS The patient population had a mean age of 69.2 ± 9.4 years (range: 61-81). The mean duration of symptoms was 61.2 ± 45.1 months. Significant decreases were evident after desmopressin treatment in the number of nocturia episodes (3.63 ± 1.61 to 2.00 ± 1.13, p = 0.01), nocturnal urine volume (p = 0.01), nocturnal polyuria index (NPI) (p = 0.01), and nocturia index (NI) p = 0.01). Among the categories of the MOS sleep scale, sleep index (p = 0.003), sleep disturbance (p = 0.001), snoring (p = 0.028), and shortness of breath (p = 0.036) significantly changed, with a decreased number of nocturia episodes. Adverse events were mild. CONCLUSIONS Desmopressin is an effective treatment for nocturnal polyuria in elderly women, where conservative treatment has failed. Sleep quality is also improved.
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Affiliation(s)
- Jong-Hyeon Mun
- Department of Neurosurgery, Kwangju Christian Hospital, Gwangju, South Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, South Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, South Korea
| | - Ho Suck Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, South Korea
| | - Dongdeuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, South Korea
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Kim SO, Na SW, Yu HS, Kwon D. Epididymal anomalies in boys with undescended testis or hydrocele: Significance of testicular location. BMC Urol 2015; 15:108. [PMID: 26497933 PMCID: PMC4619389 DOI: 10.1186/s12894-015-0099-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 10/12/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Epididymal anomalies and patent processus vaginalis are frequently found in boys with cryptorchidism or hydrocele. We conducted this study to evaluate the association between epididymal anomalies and testicular location or patent processus vaginalis in boys with undescended testis or hydrocele. METHODS Children undergoing surgery with undescended testis (group A, 136 boys and 162 testes) or communicating hydrocele (group B, 93 boys and 96 testes) were included. Testicular locations and epididymal anomalies were investigated prospectively. An anomalous epididymis was defined as anomalies of epididymal fusion that consisted of loss of continuity between the testis, the epididymis, and the long looping epididymis. The epididymis was considered normal when a normal, firm attachment between the testis, the caput, and the cauda epididymis was present. RESULTS The mean ages of groups A and B were 24.6 ± 19.7 (range, 8-52 months) and 31.4 ± 20.6 months (range, 10-59 months). The incidence of epididymal anomalies was significantly higher in group A than that in group B (65.4 % vs. 13.5 %, P < .001). The incidence of epididymal anomalies in boys with undescended testis was significantly different according to testis location. Epididymal anomalies were observed in 100 %, 91.4 %, and 39.3 % of cases when the testis was located in the abdomen, inguinal canal, and distal to the external inguinal ring, respectively (P < 0.001). CONCLUSION We conclude that epididymal anomalies were more frequent in boys with undescended testis than in boys with hydrocele, and that these anomalies were more frequent when undescended testis was at a higher level. These results suggest that testicular location is associated with epididymal anomalies rather than patent processus vaginalis.
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Affiliation(s)
- Sun-Ouck Kim
- From the Department of Urology, Chonnam National University Medical School, Gwangju, South Korea.
| | - Seong Woong Na
- From the Department of Urology, Chonnam National University Medical School, Gwangju, South Korea.
| | | | - Dongdeuk Kwon
- From the Department of Urology, Chonnam National University Medical School, Gwangju, South Korea.
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Jeon KS, Sung JH, Lee MW, Song HY, Lee EA, Kim SO, Choi HJ, Shin HY, Park WH, Jang YI, Kang MG, Choi YH, Lee JS, Ko DH, Ryu HY. Comparison of Strain in GaN-Based Blue Light-Emitting Diode Grown on Silicon(111) and Sapphire Substrates. J Nanosci Nanotechnol 2015; 15:5264-5266. [PMID: 26373120 DOI: 10.1166/jnn.2015.10408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We compare the strain states and device performances of GaN-based blue light-emitting diodes (LEDs) grown on Si(111) and sapphire substrates. The strain characteristics are investigated using micro-Raman spectroscopy and high-resolution transmission electron microscopy. These analyses reveal that GaN layer grown on Si has a residual tensile strain in contrast to a compressive strain for GaN on sapphire, and quantum wells (QWs) on GaN/Si experience reduced lattice mismatch than those of GaN/sapphire. When external quantum efficiencies of LED on sapphire and Si substrates are compared, the LED on Si shows better efficiency droop characteristics and this is attributed to a decrease in piezo-electric field strength in InGaN/GaN layers owing to reduced lattice mismatch.
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Yun BH, Hwang EC, Yu HS, Chung H, Kim SO, Jung SI, Kang TW, Kwon DD, Park K, Choi C. Is histological prostate inflammation in an initial prostate biopsy a predictor of prostate cancer on repeat biopsy? Int Urol Nephrol 2015; 47:1251-7. [PMID: 26071871 DOI: 10.1007/s11255-015-1029-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 06/04/2015] [Indexed: 10/23/2022]
Abstract
PURPOSE To investigate whether histological inflammation detected in an initial prostate biopsy can predict the risk of prostate cancer on a repeat biopsy. METHODS This was a retrospective study of 171 patients who underwent repeat prostate biopsy for persistently elevated prostate-specific antigen after an initial negative biopsy result. The enrolled patients were divided into two groups according to the results of the repeat biopsy: the noncancer group (n = 126) and the cancer group (n = 45). Multivariate regression analysis was used to determine the effect of inflammation grade, aggressiveness, and prostate-related parameters on the detection of prostate cancer at the repeat biopsy. RESULTS Prostate inflammation grade (p = 0.005) and aggressiveness (p = 0.001) in the initial biopsy were significantly different between the cancer and noncancer groups. Factors associated with the risk of prostate cancer at the repeat biopsy were age [odds ratio (OR) 1.08; 95 % confidence interval (CI) 1.03-1.14], prostate-specific antigen density (OR 24.30; 95 % CI 9.3-62.9), prostate-specific antigen velocity (OR 1.05; 95 % CI 1.01-1.09), and inflammation aggressiveness (OR 0.05; 95 % CI 0.01-0.27). CONCLUSIONS A histological inflammatory finding at the initial prostate biopsy was negatively associated with prostate cancer detection in repeat biopsy. This result could be useful to determine the need for repeat prostate biopsy in patients with persistently elevated prostate-specific antigen.
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Affiliation(s)
- Bu Hyeon Yun
- Department of Urology, Chonnam National University Medical School, 42, Jebong-ro, Donggu, Gwangju, 501-757, Republic of Korea
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Cho YH, Jung SI, Chung HS, Yu HS, Hwang EC, Kim SO, Kang TW, Kwon DD, Park K. Antimicrobial susceptibilities of extended-spectrum beta-lactamase-producing Escherichia coli and Klebsiella pneumoniae in health care-associated urinary tract infection: focus on susceptibility to fosfomycin. Int Urol Nephrol 2015; 47:1059-66. [PMID: 26026972 DOI: 10.1007/s11255-015-1018-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 05/22/2015] [Indexed: 11/28/2022]
Abstract
PURPOSE The appearance of extended-spectrum beta-lactamase (ESBL)-producing gram-negative bacteria in urinary tract infection (UTI) constitutes an important therapeutic challenge. The aim of this study was to describe drug susceptibility profiles of ESBL-producing bacteria isolated from urine samples. We also determined the antimicrobial co-resistance to several agents, including fosfomycin. METHODS The computerized database was used to identify ESBL-positive urine samples. We analyzed E. coli and Klebsiella isolates obtained from urine cultures, and duplicate isolates and isolates not tested against fosfomycin were excluded. The cases were further categorized according to UTI definition [community-acquired (CoA) UTI, community-onset health care-associated (HCA) UTI, and hospital-acquired (HA) UTI]. ESBL isolates were stratified according to their origin into two groups: urology and non-urology isolates. RESULTS Antimicrobial susceptibilities of the strains to fosfomycin were tested in 277 ESBL-positive strains, 217 ESBL-EC strains, and 60 ESBL-KP strains. The most effective agents were carbapenems, such as imipenem and meropenem. The least active substances were ciprofloxacin (20.7 %), levofloxacin (22.7 %), trimethoprim-sulfamethoxazole (34.3 %), and ampicillin-clavulanate (42.9 %). Overall, 243 out of the 277 (87.7 %) isolates tested were susceptible to fosfomycin. Higher fosfomycin sensitivity was observed in E. coli (94.9 %) compared to Klebsiella (61.7 %) (p = 0.001). ESBL-positive isolates from urological (68 isolates) and non-urological patients (209 isolates) showed similar susceptibility profiles. Other than carbapenems, isolates from CoA-UTI showed higher sensitivity to fosfomycin (100 %) and nitrofurantoin (93.1 %), isolates from HCA-UTI showed higher sensitivity to amikacin (94.1 %), and isolates from HA-UTI showed overall poor sensitivity to antibiotics. CONCLUSIONS Fosfomycin could be an alternative treatment option for UTIs related to ESBL-producing E. coli spp. and CoA-UTI, but not for UTIs related to ESBL-producing Klebsiella spp. Antimicrobial susceptibilities of ESBL-producing strains were different according to the UTI classification. Fosfomycin showed decreased activity against isolates from HCA-UTI and HA-UTI. However, further clinical verification is required to assess the clinical efficacy of fosfomycin for the treatment of UTIs caused by ESBL-producing E. coli isolates.
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Affiliation(s)
- Yang Hyun Cho
- Departments of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
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Kim YJ, Cho HH, Kim SO, Lee JB, Lee SC. Reconstruction algorithm for nasal basal cell carcinoma with skin involvement only: analysis of 221 cases repaired by minor surgery. Clin Exp Dermatol 2015; 40:728-34. [PMID: 25959078 DOI: 10.1111/ced.12676] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/10/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND Basal cell carcinoma (BCC) often occurs on the nose. Reconstruction of the nose should yield excellent aesthetic and functional outcomes. AIM We propose a technical algorithm for the reconstruction of surgical defects, based on our analysis of 221 cases of nasal BCC with skin involvement only, which could be repaired by minor surgery. METHODS The aesthetic and functional outcomes for various reconstruction techniques were analysed according to defect location and size. A reconstruction algorithm was proposed with the aim of obtaining the best surgical results. RESULTS Defect location and size were key considerations. Primary closure was the first option for small defects (< 10 mm), with scores of 3.4 for objective aesthetic outcome (OAO), 3.2 for subjective aesthetic outcome (SAO) and 3.3 for subjective functional outcome (SFO). The first option for medium defects (1-20 mm) was the island pedicle flap, with scores of 3.5 for OAO, 3.2 for SAO and 3.7 for SFO. The first option for large defects (> 20 mm) was the transposition flap for the upper nose (scores of 2.0 for OAO and SAO and 3.0 for SFO) and the interpolation flap for the lower nose (2.8 for OAO and 2.9 for SAO and SFO). CONCLUSIONS We have proposed an algorithm to select the optimal technique for repairing nasal BCC surgical defects according to their size and location.
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Affiliation(s)
- Y J Kim
- Department of Dermatology, Chonnam National University Medical School, Gwangju, Korea
| | - H H Cho
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School, Gwangju, Korea
| | - S O Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - J B Lee
- Department of Dermatology, Chonnam National University Medical School, Gwangju, Korea
| | - S C Lee
- Department of Dermatology, Chonnam National University Medical School, Gwangju, Korea
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Chang IY, Kim JN, Kim SO, Han M, Huh JS, Maeng YH, Yoon SP. Morphological effects of mitomycin C on urothelial responses to experimentally-induced urethral stricture in rats. Int J Urol 2015; 22:702-9. [PMID: 25871346 DOI: 10.1111/iju.12780] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 02/12/2015] [Accepted: 03/08/2015] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To analyze the urothelial responses to mitomycin C treatment after urethral injury in rats, as the urothelium might play a role in the pathogenesis of urethral stricture. METHODS Male Sprague-Dawley rats were divided into four groups (n = 5/group): negative control, positive control without further treatment, experimental control treated with sodium hyaluronate and sodium carboxymethylcellulose, and experimental treated with mitomycin C after internal urethrotomy. RESULTS Compared with negative controls, positive controls showed a significant increase in cell proliferation and DNA damage accompanied by a considerable decrease in DNA repair in the urothelium, which resulted in urethral stricture. Experimental controls showed a significant increase in cell proliferation, DNA damage and DNA repair compared with negative controls. The mitomycin C-treated group showed a significant decrease in cell proliferation and DNA damage, but a considerable increase in DNA repair compared with the positive and experimental control groups. DNA damage was immediately increased after urethral injury, but DNA repair and cell proliferation showed belated and upregulated expression after mitomycin C treatment. CONCLUSIONS Mitomycin C could induce healthy re-epithelialization without severe damage in the urothelium. This finding might support the possibility of using mitomycin C as an adjuvant therapy for urethral strictures, and it might also suggest a urothelial role in the process of urethral stricture after urethral injury.
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Affiliation(s)
- In Youb Chang
- Department of Anatomy, College of Medicine, Chosun University
| | - Jin Nam Kim
- Department of Internal Medicine, Seoulpaik Hospital, Inje University College of Medicine, Seoul
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju
| | - Misook Han
- Department of Nursing, School of Natural Science, Songwon University, Gwangju
| | - Jung-Sik Huh
- Department of Urology, School of Medicine, Jeju National University
| | - Young Hee Maeng
- Department of Pathology, School of Medicine, Jeju National University
| | - Sang Pil Yoon
- Department of Anatomy, School of Medicine, Jeju National University, Jeju, Korea
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Chung HS, Ryu JG, Shin B, Nam DH, Yu HS, Hwang EC, Kim SO, Jung SI, Kang TW, Kwon D, Park K. MP20-11 ANTIMICROBIAL SUSCEPTIBILITIES OF URINARY EXTENDED SPECTRUM BETA-LACTAMASE-PRODUCING ESCHERICHIA COLI AND KLEBSIELLA PNEUMONIAE TO FOSFOMYCIN IN HEALTH CARE ASSOCIATED URINARY TRACT INFECTION. J Urol 2015. [DOI: 10.1016/j.juro.2015.02.983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Choi DI, Choi JY, Kim YJ, Lee JB, Kim SO, Shin HT, Lee SC. Ethanol Extract of Peanut Sprout Exhibits a Potent Anti-Inflammatory Activity in Both an Oxazolone-Induced Contact Dermatitis Mouse Model and Compound 48/80-Treated HaCaT Cells. Ann Dermatol 2015; 27:142-51. [PMID: 25834352 PMCID: PMC4377402 DOI: 10.5021/ad.2015.27.2.142] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 06/24/2014] [Accepted: 07/07/2014] [Indexed: 02/01/2023] Open
Abstract
Background We developed an ethanol extract of peanut sprouts (EPS), a peanut sprout-derived natural product, which contains a high level of trans-resveratrol (176.75 µg/ml) and was shown to have potent antioxidant activity. Objective We evaluated the potential anti-inflammatory activity of EPS by measuring its antioxidant potential in skin. Methods The anti-inflammatory activity of EPS was tested using two models of skin inflammation: oxazolone (OX)-induced contact dermatitis in mice and compound 48/80-treated HaCaT cells. As biomarkers of skin inflammation, cyclooxygenase-2 (COX-2) and nerve growth factor (NGF) levels were measured. Results OX-induced contact dermatitis was suppressed markedly in mice that were treated with an ointment containing 5% EPS as evidenced by a decrease in the extent of scaling and thickening (p<0.05) and supported by a histological study. COX-2 (messenger RNA [mRNA] and protein) and NGF (mRNA) levels, which were upregulated in the skin of OX-treated mice, were suppressed markedly in the skin of OX+EPS-treated mice. Consistent with this, compound 48/80-induced expression of COX-2 (mRNA and protein) and NGF (mRNA) in HaCaT cells were suppressed by EPS treatment in a dose-dependent manner. As an inhibitor of NF-κB, IκB protein levels were dose-dependently upregulated by EPS. Fluorescence-activated cell sorting (FACS) analysis revealed that EPS scavenged compound 48/80-induced reactive oxygen species (ROS) in HaCaT cells. Conclusion EPS exerts a potent anti-inflammatory activity via its anti-oxidant activity in both mouse skin and compound 48/80-treated HaCaT cells in vitro. Compound 48/80-treated HaCaT cells are a useful new in vitro model of skin inflammation.
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Affiliation(s)
- Da-In Choi
- Department of Dermatology, Chonnam National University Medical School, Gwangju, Korea
| | - Jee-Young Choi
- Department of Dermatology, Chonnam National University Medical School, Gwangju, Korea
| | - Young Jee Kim
- Department of Dermatology, Chonnam National University Medical School, Gwangju, Korea
| | - Jee-Bum Lee
- Department of Dermatology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | | | - Seung-Chul Lee
- Department of Dermatology, Chonnam National University Medical School, Gwangju, Korea
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Park SJ, Pai KS, Kim JM, Park K, Kim KS, Song SH, Park S, Kim SO, Ryu DS, Baek M, Lee SD, Lee JW, Im YJ, Han SW, Chung JM, Cho MH, Ha TS, Cho WY, Suh HJ. Erratum: efficacy and tolerability of anticholinergics in korean children with overactive bladder: a multicenter retrospective study. J Korean Med Sci 2015; 30:119. [PMID: 25547325 PMCID: PMC4278021 DOI: 10.3346/jkms.2015.30.1.119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
[This corrects the article on p. 1550 in vol. 29, PMID: 25408588.].
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Park SJ, Pai KS, Kim JM, Park K, Kim KS, Song SH, Park S, Kim SO, Ryu DS, Baek M, Lee SD, Lee JW, Im YJ, Han SW, Chung JM, Cho MH, Ha TS, Cho WY, Suh HJ. Efficacy and tolerability of anticholinergics in Korean children with overactive bladder: a multicenter retrospective study. J Korean Med Sci 2014; 29:1550-4. [PMID: 25408588 PMCID: PMC4234924 DOI: 10.3346/jkms.2014.29.11.1550] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Accepted: 07/22/2014] [Indexed: 02/04/2023] Open
Abstract
We investigated the efficacy and tolerability of various anticholinergics in Korean children with non-neurogenic overactive bladder (OAB). A total of 326 children (males:females= 157:169) aged under 18 yr (mean age 7.3±2.6 yr) who were diagnosed with OAB from 2008 to 2011 were retrospectively reviewed. The mean duration of OAB symptoms before anticholinergic treatment was 16.9±19.0 months. The mean duration of medication was 5.6±7.3 months. Urgency urinary incontinence episodes per week decreased from 1.9±3.1 to 0.4±1.5 times (P<0.001). The median voiding frequency during daytime was decreased from 9.2±5.4 to 6.3±4.2 times (P<0.001). According to 3-day voiding diaries, the maximum and average bladder capacity were increased from 145.5±66.9 to 196.8±80.3 mL and from 80.8±39.6 to 121.8±56.5 mL, respectively (P<0.001). On uroflowmetry, maximum flow rate was increased from 17.6±8.4 to 20.5±8.2 mL/sec (P<0.001). Adverse effects were reported in 14 (4.3%) children and six children (1.8%) discontinued medication due to adverse effects. Our results indicate that anticholinergics are effective to improve OAB symptoms and tolerability was acceptable without severe complications in children.
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Affiliation(s)
- Se Jin Park
- Department of Pediatrics, Ajou University Hospital, Ajou University School of Medicine, Suwon, Korea
| | - Ki Soo Pai
- Department of Pediatrics, Ajou University Hospital, Ajou University School of Medicine, Suwon, Korea
| | - Jun Mo Kim
- Department of Urology, Soonchunhyang University Hospital, College of Medicine, Soonchunhyang University, Bucheon, Korea
| | - Kwanjin Park
- Department of Urology, Seoul National University College of Medicine, Seoul, Korea
| | - Kun Suk Kim
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sang Hoon Song
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sungchan Park
- Department of Urology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Dong Soo Ryu
- Department of Urology, Sungkyunkwan University School of Medicine, Samsung Changwon Hospital, Chnagwon, Korea
| | - Minki Baek
- Department of Urology, Sunkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea
| | - Sang Don Lee
- Department of Urology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Jung Won Lee
- Department of Pediatrics, Hallym University Kangnam Sacred Heart Hospital, Seoul, Korea
| | - Young Jae Im
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Won Han
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Min Chung
- Department of Urology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Min Hyun Cho
- Department of Pediatrics, Kyungpook National University School of Medicine, Daegu, Korea
| | - Tae-Sun Ha
- Department of Pediatrics, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Won Yeol Cho
- Department of Urology, Dong-A University, Busan, Korea
| | - Hong Jin Suh
- Department of Urology, Incheon St. Mary's Hospital, The Catholic University of Korea, Incheon, Korea
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Cho YH, Seo YH, Chung SJ, Hwang I, Yu HS, Kim SO, Jung SI, Kang TW, Kwon DD, Park K, Hwang JE, Heo SH, Kim GS, Hwang EC. Predictors of intravesical recurrence after radical nephroureterectomy for upper urinary tract urothelial carcinoma: an inflammation-based prognostic score. Korean J Urol 2014; 55:453-9. [PMID: 25045443 PMCID: PMC4101114 DOI: 10.4111/kju.2014.55.7.453] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 04/09/2014] [Indexed: 11/18/2022] Open
Abstract
PURPOSE Systemic inflammatory responses, which are defined in terms of the Glasgow prognostic score (GPS), have been reported to be independent predictors of unfavorable outcomes in various human cancers. We assessed the utility of the GPS as a predictor of intravesical recurrence after radical nephroureterectomy (RNU) in upper urinary tract carcinoma (UTUC). MATERIALS AND METHODS We collected data for 147 UTUC patients with no previous history of bladder cancer who underwent RNU from 2004 to 2012. Associations between perioperative clinicopathological variables and intravesical recurrence were analyzed by using univariate and multivariate Cox regression models. RESULTS Overall, 71 of 147 patients (48%) developed intravesical recurrence, including 21 patients (30%) diagnosed with synchronous bladder tumor. In the univariate analysis, performance status, diabetes mellitus (DM), serum albumin, C-reactive protein, GPS, and synchronous bladder tumor were associated with intravesical recurrence. In the multivariate analysis, performance status (hazard ratio [HR], 2.33; 95% confidence interval [CI], 1.41-3.85; p=0.001), DM (HR, 2.04; 95% CI, 1.21-3.41; p=0.007), cortical thinning (HR, 2.01; 95% CI, 1.08-3.71; p=0.026), and GPS (score of 1: HR, 6.86; 95% CI, 3.69-12.7; p=0.001; score of 2: HR, 5.96; 95% CI, 3.10-11.4; p=0.001) were independent predictors of intravesical recurrence. CONCLUSIONS Our results suggest that the GPS as well as performance status, DM, and cortical thinning are associated with intravesical recurrence after RNU. Thus, more careful follow-up, coupled with postoperative intravesical therapy to avoid bladder recurrence, should be considered in these patients.
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Affiliation(s)
- Yang Hyun Cho
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Young Ho Seo
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Jun Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Insang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Il Jung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dong Deuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Jun Eul Hwang
- Department of Hematology-Oncology, Chonnam National University Medical School, Gwangju, Korea
| | - Suk Hee Heo
- Department of Radiology, Chonnam National University Medical School, Gwangju, Korea
| | - Geun Soo Kim
- Department of Urology, Gwangju Hospital, Gwangju, Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Kim SO, Choi HS, Kwon D. The α1 adrenoceptor antagonist tamsulosin for the treatment of voiding symptoms improves nocturia and sleep quality in women. Urol J 2014; 11:1636-1641. [PMID: 25015610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 03/17/2014] [Indexed: 06/03/2023]
Abstract
PURPOSE Nocturia is the main cause of disturbance of sleep maintenance and negatively impacts quality of life (QoL). We assessed the effects of the α1-adrenoceptor antagonist, tamsulosin, on nocturia and quality of sleep, for the treatment of lower urinary tract symptoms (LUTS) in women with a maximal flow rate (Qmax) less than 15 mL/sec. MATERIALS AND METHODS From January 2008 to December 2009, women with LUTS [Qmax ≤ 15 mL/s, International Prostate Symptom Score (IPSS) ≥ 8] and nocturia (void/night ≥ 1) were selected for this study. Two hundred ninety six patients completed voiding diary, a questionnaire on the Medical Outcomes Study (MOS) sleep scale and underwent follow-up evaluation after 4 weeks of treatment (tamsulosin, 0.2 mg, once daily). Effectiveness was assessed by analysis of the IPSS, the bother score, the Qmax, and postvoid residual urine (PVR). RESULTS The mean number of voids per night was 2.66 ± 1.3, and the total IPSS and bother scores were 15.2 ± 8.9 and 3.4 ± 1.2, respectively. Clinical parameters, including the IPSS, the bother score, the Qmax and the PVR, improved significantly from baseline after treatment (P < .05). The change in nocturia was -1.12 (P < .05). Concerning sleep quality, the sleep problem index showed a significant decrease. Among the items on the sleep subscale, sleep disturbance, somnolence, and sleep adequacy were significantly changed (P < .05). CONCLUSION The α1-adrenoceptor antagonist tamsulosin significantly improved nocturia and sleep quality as well as LUTS in women with low Qmax.
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Affiliation(s)
- Sun-Ouck Kim
- Department of Urology, Chonnam National University Hospital and Medical School 8, Hak-dong, Dong-ku, Gwangju #501-757, South Korea.
| | - Hyang Sik Choi
- Department of Urology, Chonnam National University Medical School, Gwangju, South Korea
| | - Dongdeuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, South Korea
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Ryu JG, Yu SH, Jeong SH, Yun BH, Yu HS, Kim SO, Kwon D. Transobturator tape for female stress urinary incontinence: preoperative valsalva leak point pressure is not related to cure rate or quality of life improvement. Korean J Urol 2014; 55:265-9. [PMID: 24741416 PMCID: PMC3988438 DOI: 10.4111/kju.2014.55.4.265] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 10/21/2013] [Indexed: 11/18/2022] Open
Abstract
Purpose We investigated whether the Valsalva leak point pressure (VLPP) is valuable for predicting postoperative outcome measurement after transobturator suburethral tape (TVT-O) implantation for treating stress urinary incontinence (SUI) in women. Materials and Methods A total of 204 female patients who underwent TVT-O placement for treatment of SUI from March 2008 to February 2012 were enrolled in this retrospective study. All patients completed the incontinence quality of Life questionnaire (I-QoL), a self-reported quality of life measure specific to urinary incontinence, and the cure rate of incontinence was measured before and 6 months after surgery. Cure was defined as no leakage of urine postoperatively both subjectively and objectively. We compared pre- and postoperative I-QoL scores according to preoperative VLPP and Stamey grade. Results The numbers of patients with Stamey grades I, II, and III were 99 (48.5%), 84 (41.2%), and 21 (10.3%), respectively. A total of 30 (14.7%), 87 (42.6%), and 87 patients (42.6%) showed VLPP≤60, 60<VLPP≤90, and VLPP>90 cm H2O, respectively. Preoperative VLPP was not significantly different according to preoperative I-QoL or change in I-QoL after surgery. However, I-QoL after surgery improved in patients with a high preoperative Stamey grade (p=0.001). Conclusions VLPP was not a factor related to surgical outcome from the midurethral sling procedure. Stamey grade rather than VLPP was important for predicting subjective quality of life and improved incontinence-related quality of life after surgery.
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Affiliation(s)
- Je-Guk Ryu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seong Hyeon Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Se Heon Jeong
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Bu Hyeon Yun
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dongdeuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Lee OJ, Cho D, Shin MG, Kim SO, Park JT, Kim HK, Ryang DW. The first known case of blood group chimerism in monochorionic dizygotic twins in Korea. Ann Lab Med 2014; 34:259-62. [PMID: 24790918 PMCID: PMC3999329 DOI: 10.3343/alm.2014.34.3.259] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 10/25/2013] [Accepted: 01/25/2014] [Indexed: 11/25/2022] Open
Affiliation(s)
- O-Jin Lee
- Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Duck Cho
- Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Myung-Geun Shin
- Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Hospital and Medical School, Gwangju, Korea
| | - Jong-Tae Park
- Department of Forensic Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Hee Kyung Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Dong-Wook Ryang
- Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea
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Kim SO, Yu HS, Hwang IS, Hwang EC, Kang TW, Kwon D. Early Pyeloplasty for Recovery of Parenchymal Thickness in Children with Unilateral Ureteropelvic Junction Obstruction. Urol Int 2014; 92:473-6. [DOI: 10.1159/000357144] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 11/05/2013] [Indexed: 11/19/2022]
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Kim SO, Jeong HS, Jang S, Wu MJ, Park JK, Jiao HY, Jun JY, Park JS. Spontaneous electrical activity of cultured interstitial cells of cajal from mouse urinary bladder. Korean J Physiol Pharmacol 2013; 17:531-6. [PMID: 24381503 PMCID: PMC3874441 DOI: 10.4196/kjpp.2013.17.6.531] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 11/30/2013] [Accepted: 12/03/2013] [Indexed: 11/30/2022]
Abstract
Interstitial cells of Cajal (ICCs) from the urinary bladder regulate detrusor smooth muscle activities. We cultured ICCs from the urinary bladder of mice and performed patch clamp and intracellular Ca2+ ([Ca2+]i) imaging to investigate whether cultured ICCs can be a valuable tool for cellular functional studies. The cultured ICCs displayed two types of spontaneous electrical activities which are similar to those recorded in intact bladder tissues. Spontaneous electrical activities of cultured ICCs were nifedipine-sensitive. Carbachol and ATP, both excitatory neurotransmitters in the urinary bladder, depolarized the membrane and increased the frequency of spike potentials. Carbachol increased [Ca2+]i oscillations and basal Ca2+ levels, which were blocked by atropine. These results suggest that cultured ICCs from the urinary bladder retain rhythmic phenotypes similar to the spontaneous electrical activities recorded from the intact urinary bladder. Therefore, we suggest that cultured ICCs from the urinary bladder may be useful for cellular and molecular studies of ICCs.
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Affiliation(s)
- Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju 501-757, Korea. ; Research Institute of Medical Sciences, Chonnam National University, Gwangju 501-757, Korea
| | - Han-Seong Jeong
- Department of Physiology, Chonnam National University Medical School, Gwangju 501-757, Korea. ; Research Institute of Medical Sciences, Chonnam National University, Gwangju 501-757, Korea
| | - Sujeong Jang
- Department of Physiology, Chonnam National University Medical School, Gwangju 501-757, Korea
| | - Mei-Jin Wu
- Department of Physiology, Chonnam National University Medical School, Gwangju 501-757, Korea. ; Center for Creative Biomedical Scientists at Chonnam National Univertisity, Gwangju 501-757, Korea
| | - Jong Kyu Park
- Department of Neurosurgery, College of Medicine, Chosun University, Gwangju 501-759, Korea
| | - Han-Yi Jiao
- Department of Physiology, College of Medicine, Chosun University, Gwangju 501-759, Korea
| | - Jae Yeoul Jun
- Department of Physiology, College of Medicine, Chosun University, Gwangju 501-759, Korea
| | - Jong-Seong Park
- Department of Physiology, Chonnam National University Medical School, Gwangju 501-757, Korea. ; Research Institute of Medical Sciences, Chonnam National University, Gwangju 501-757, Korea. ; Center for Creative Biomedical Scientists at Chonnam National Univertisity, Gwangju 501-757, Korea
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Kim SO, Song SH, Lee SC, Cho KA, Park JS, Kwon D, Park K. Altered expression of caveolin 2 and 3 in smooth muscle of rat urinary bladder by 17β-estradiol. BMC Urol 2013; 13:44. [PMID: 24040945 PMCID: PMC3856458 DOI: 10.1186/1471-2490-13-44] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 09/10/2013] [Indexed: 01/08/2023] Open
Abstract
Background The purpose of this study was to investigate the effect of estrogen alteration on the expression of caveolin 2 and 3 in rat smooth muscle of urinary bladder. Methods Female Sprague–Dawley rats were divided into three groups: control, bilateral ovariectomy (Ovx), and bilateral ovariectomy followed by subcutaneous injections of 17β-estradiol (Ovx?+?Est). After 4 weeks, urodynamic measurements were taken to ascertain the contraction interval and contraction pressure. The expression and cellular localization of caveolin 2 and 3 were determined by Western blot and immunohistochemistry in rat urinary bladder smooth muscle. Results In cystometrograms, the contraction interval (min) was significantly lower in the Ovx group (3.1?±?1.5) than in the control group (5.6?±?1.2), but was increased after estrogen treatment (9.3?±?1.0). Conversely, the average contraction pressure (mmHg) was higher in the Ovx group (26.2?±?2.3) than in the control group (21.9?±?3.1), and was decreased after estrogen treatment (23.8?±?3.5). Caveolin 2 and 3 expression was localized in the cell membrane of the smooth muscle. The protein expression of both caveolin 2 and 3 was significantly lower after ovariectomy and was restored to the control levels after 17β-estradiol treatment. Conclusions Hormonal alteration causes a significant change in the expression of caveolin 2 and 3 in smooth muscle of rat urinary bladder. These findings suggest that these molecules might have functional roles in the detrusor overactivity that occurs in association with hormonal alteration.
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Affiliation(s)
- Sun-Ouck Kim
- Department of Urology, Research Institute of Medical Sciences, Chonnam National University, 8, Hak-dong, Dong-ku, Gwangju 501-757, Korea.
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Kim SO, Choi D, Song SH, Ahn KY, Kwon D, Park K, Ryu SB. Effect of detrusor overactivity on the expression of aquaporins and nitric oxide synthase in rat urinary bladder following bladder outlet obstruction. Can Urol Assoc J 2013; 7:E268-74. [PMID: 23766828 DOI: 10.5489/cuaj.993] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND Aquaporins (AQPs) have recently been reported to be expressed in rat and human urothelium. Nitric oxide (NO) is thought to play a role in the bladder overactivity related to bladder outlet obstruction (BOO). The purpose of this study is to investigate the effect of BOO on the expression of AQP2-3 and nitric oxide synthase (NOS) isoforms in rat urothelium. METHODS Female Sprague-Dawley rats (230-240 g, n = 60) were divided into 2 groups. The control group (n = 30) and the partial bladder outlet obstruction (BOO) group (n = 30). After 4 weeks, we performed a urodynamic study to measure the contraction interval and contraction pressure. The expression and cellular localization of AQP2-3, endothelial nitric oxide synthase (eNOS) and neuronal nitric oxide synthase (nNOS) were determined by Western blot and immunohistochemistry. RESULTS On the cystometrogram, the estimated contraction interval time (minutes, mean ± SE) was significantly lower in the BOO group (3.0 ± 0.9) than in the control group (6.3 ± 0.4; p < 0.05). AQP2 was localized in the cytoplasm of the epithelium, whereas AQP3 was found only in the cell membrane of the epithelium. The protein expression of AQP2-3, eNOS and nNOS was significantly increased in the BOO group. CONCLUSION Detrusor overactivity induced by BOO causes a significant increase in the expression of AQP2-3, eNOS, and nNOS in rat urinary bladder. This may imply that the AQPs and NOS isoforms have a functional role in the bladder dysfunction that occurs in association with BOO.
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Affiliation(s)
- Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Jang WS, Jeong SH, Yu HS, Hwang IS, Hwang EC, Kim SO, Oh KJ, Jung SI, Kwon DD, Park K, Kang TW. Initial experience of transurethral resection with pediatric resectoscope for incomplete anterior urethral stricture. Int Braz J Urol 2013; 39:295; discussion 296. [PMID: 23683679 DOI: 10.1590/s1677-5538.ibju.2013.02.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Accepted: 02/27/2013] [Indexed: 11/22/2022] Open
Abstract
PURPOSE Endoscopic urethrotomy is an alternative method in treatment of urethral stricture. However, it have high recurrence rate because of the remained fibrotic tissue. Removal of the fibrotic tissue can maintain the patency of the urethral lumen after the procedure. We report the therapeutic efficacy of our initial experience using pediatric resectoscope for treating anterior urethral stricture in 16 cases. MATERIALS AND METHODS From January 2009 to April 2011, transurethral resection with pediatric resectoscope was primarily performed on 16 patients with anterior urethral stricture. Retrograde urethrography, uroflowmetry, postvoid residual volume, IPSS score and QoL score were performed preoperatively. We used 11.5Fr pediatric resectoscope (Wolf) and monopolar electrosurgical generator. The stricture was incised under vision at the 12 o'clock location or the site of maximum scar tissue or narrowing in asymmetric strictures for working space. After incision, transurethral resection with pediatric resectoscope was performed to all scar tissues. Monopolar cutting current was set on 45 watt and coagulation current was set on 30 watt, fulgurate mode. Postoperatively, drainage of the bladder was performed for 7 days using an 18F latex catheter. Patients were followed up by IPSS score, QoL score, uroflowmetry and postvoid residual volume. RESULTS Successful results without recurrence were achieved in 11 of 16 patients. Postoperative urethral dilation had been performed average 2.4 times (0~6 times). When we classified the results by etiology, the number of successful results in strictures with a trauma, iatrogenic, or unknown cause was 5 (7/11), 3 (3/4) and 1 (1/1), respectively. In 5 patients who failed treatment, we repeated transurethral resection with pediatric resectoscope in 1 patient, and periodic urethral dilation in 4 patients. No operative complications occurred in any patients. CONCLUSIONS Transurethral resection with pediatric resectoscope is an effective therapeutic method for anterior urethral stricture. More long-term follow-up and large scale studies are needed to confirm the efficacy of this procedure.
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Affiliation(s)
- Won Seok Jang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Yu SH, Ryu JG, Jeong SH, Hwang EC, Jang WS, Hwang IS, Yu HS, Kim SO, Jung SI, Kang TW, Kwon DD, Park K, Hwang JE, Kim GS. Predicting factors for stent failure-free survival in patients with a malignant ureteral obstruction managed with ureteral stents. Korean J Urol 2013; 54:316-21. [PMID: 23700497 PMCID: PMC3659225 DOI: 10.4111/kju.2013.54.5.316] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 01/04/2013] [Indexed: 12/16/2022] Open
Abstract
Purpose To determine predictive factors for stent failure-free survival in patients treated with a retrograde ureteral stent for a malignant ureteral obstruction. Materials and Methods We retrospectively reviewed 71 patients who underwent insertion of a cystoscopic ureteral stent due to a malignant ureteral obstruction between May 2004 and June 2011. Performance status, type of cancer, hydronephrosis grade, location of the obstruction, presence of bladder invasion, C-reactive protein (CRP), serum albumin, and inflammation-based prognostic score (Glasgow prognostic score, GPS) were assessed using a Cox proportional regression hazard model as predicting factors for stent failure. Results A univariate analysis indicted that hypoalbuminemia (<3.5 g/dL; hazard ratio [HR], 2.43; 95% confidence interval [CI], 1.21 to 4.86; p=0.012), elevated CRP (≥1 mg/dL; HR, 4.79; 95% CI, 2.0 to 11.1; p=0.001), and presence of a distal ureter obstruction (HR, 3.27; 95% CI, 1.19 to 8.95; p=0.021) were associated with stent failure-free survival. A multivariate analysis revealed that the presence of a mid and lower ureteral obstruction (HR, 3.27; 95% CI, 1.19 to 8.95; p=0.007), GPS ≥1 (HR, 7.22; 95% CI, 2.89 to 18.0; p=0.001), and elevated serum creatinine before ureteral stent placement (>1.2 mg/dL; HR, 2.16; 95% CI, 1.02 to 4.57; p=0.044) were associated with stent failure-free survival. Conclusions A mid or lower ureteral obstruction, GPS ≥1, and serum creatinine before ureteral stent insertion >1.2 mg/dL were unfavorable predictors of stent failure-free survival. These factors may help urologists predict survival time.
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Affiliation(s)
- Seong Hyeon Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Abstract
Cartilage oligomeric matrix protein-angiopoietin-1 (COMP-Ang1) is an angiogenic factor for vascular angiogenesis. The aim was to investigate the effect of an intracavernosal injection of COMP-Ang1 on cavernosal angiogenesis in a diabetic rat model. Male Otsuka Long-Evans Tokushima Fatty (OLETF) rats made up the experimental group (1 yr old) and Long-Evans Tokushima Otsuka (LETO) rats made up the control group. The experimental group was divided into vehicle only, 10 µg COMP-Ang1, and 20 µg COMP-Ang1. COMP-Ang1 was injected into the corpus cavernosum of the penis. After 4 weeks, the penile tissues of the rats were obtained for immunohistochemistry and Western blot analysis. The immunoreactivity of PECAM-1 and VEGF was increased in the COMP-Ang1 group compared with the vehicle only group. Moreover, the expression of PECAM-1 and VEGF was notably augmented in the 20 µg Comp Ang-1 group. In the immunoblotting study, the expression of PECAM-1 and VEGF protein was significantly less in the OLEFT rats than in the control LETO rats. However, this expression was restored to control level after intracavernosal injection of COMP-Ang1. These results show that an intracavernosal injection of COMP-Ang1 enhances cavernous angiogenesis by structurally reinforcing the cavernosal endothelium.
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Affiliation(s)
- Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
- Sexual Medicine Research Center, Chonnam National University Medical School, Gwangju, Korea
| | - Hyun-Suk Lee
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
- Sexual Medicine Research Center, Chonnam National University Medical School, Gwangju, Korea
| | - Kyuyoun Ahn
- Department of Anatomy, Chonnam National University Medical School, Gwangju, Korea
- Sexual Medicine Research Center, Chonnam National University Medical School, Gwangju, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
- Sexual Medicine Research Center, Chonnam National University Medical School, Gwangju, Korea
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Kim SO, Kim JS, Choi HS, Jang WS, Hwang I, Yu HS, Hwang EC, Oh KJ, Jung SI, Kang TW, Kwon DD, Park K. 25 SMOOTH MUSCLE CAVEOLIN 2 AND CAVEOLIN 3 THAT CORRELATE WITH BLADDER CONTRACTILITY IN OVARIECTOMIZED RAT URINARY BLADDER: POTENTIAL IMPLICATION OF BLADDER CONTRACTION AND BLADDER OVERACTIVITY. J Urol 2013. [DOI: 10.1016/j.juro.2013.02.1400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Kim SO, Kim JS, Choi HS, Jang WS, Hwang I, Yu HS, Hwang EC, Oh KJ, Jung SI, Kang TW, Kwon DD, Park K. 1379 DIAZEPAM AADD- ON THERAPY; AN EFFECTIVE PHARMACOTHERAPY FOR NOCTURIA UNRESPONSIVE TO ALPHA-1 ADRENOREPTOR ANTAGONIST COMBINED WITH ANTI-CHOLINERGICS TREATMENT IN MEN. J Urol 2013. [DOI: 10.1016/j.juro.2013.02.2733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Kim SO, Kim JS, Choi HS, Jang WS, Hwang I, Yu HS, Hwang EC, Oh KJ, Jung SI, Kang TW, Kwon DD, Park K. 193 EFFECTS OF DESMOPRESSIN PLUS PROPIVERINE FOR THE TREATMENT OF MONOSYMPTOMATIC PRIMARY NOCTURNAL EENURESIS IN CHILDREN. J Urol 2013. [DOI: 10.1016/j.juro.2013.02.1573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ju HT, Kang JH, Lee SD, Oh MM, Moon DG, Kim SO, Lee JW, Kim JM, Woo SH. Parent and physician perspectives on the treatment of primary nocturnal enuresis in Korea. Korean J Urol 2013; 54:127-34. [PMID: 23550223 PMCID: PMC3580303 DOI: 10.4111/kju.2013.54.2.127] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 07/06/2012] [Indexed: 11/18/2022] Open
Abstract
Purpose Parental decisions about the treatment of nocturnal enuresis (NE) are generally based on silent agreement with a physician's recommendation. However, physicians may have an insufficient understanding about parents' concerns and expectations regarding treatment. The aim of this study was to clarify the discrepancies between the perceptions of parents and physicians and to better understand the attitudes related to NE treatment. Materials and Methods A survey was conducted in six centers and included 105 parents and 102 physicians. Two questionnaires, one for parents and another for physicians, were prepared. Each contained items on demographic characteristics, concerns, and NE treatment preferences. The parents completed the questionnaire during their child's first clinical visit, and the physicians completed the questionnaire via e-mail or individual interviews. Results Low self-esteem was the most common concern among both parents and physicians. Parents showed a more serious concern regarding disease progression and sequelae than did physicians. In the parent group, parents of younger children were mainly concerned about growth, whereas parents of children with daytime symptoms were mainly concerned about disease progression and relationships. Treatment outcome preferences differed significantly between the two groups. Physicians preferred treatments yielding immediate results, whereas parents preferred long-term treatments that would result in low recurrence. Conclusions This survey presents the differences between parents and physicians regarding NE concerns and therapeutic preferences. Our study may provide valuable insight for physicians regarding parental attitudes toward NE treatment.
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Affiliation(s)
- Hyun Taek Ju
- Department of Urology, Eulji University Hospital, Daejeon, Korea
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Lee SJ, Hwang EC, Hwang IS, Yu HS, Kim SO, Jung SI, Kang TW, Kwon DD, Shim HJ, Choi C. Small (<4 cm), Unclassified Renal Cell Carcinoma Presenting with Initial Bone Metastasis: A Case of a Metastatic Lesion Missed at the Initial Diagnosis. Korean J Urol 2013; 53:883-6. [PMID: 23301136 PMCID: PMC3531645 DOI: 10.4111/kju.2012.53.12.883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Accepted: 08/03/2012] [Indexed: 11/18/2022] Open
Abstract
A 49-year-old man presented with an incidentally detected right renal mass on a health examination. The abdominal computed tomography and magnetic resonance imaging showed a 3-cm right renal mass suspected of being a hypovascular tumor, such as papillary renal cell carcinoma, and an osteoblastic metastatic lesion on the right iliac bone. However, we missed a bone lesion at the time of diagnosis. A laparoscopic radical nephrectomy was performed and the final pathology confirmed unclassified renal cell carcinoma. The follow-up imaging studies showed several neck lymph nodes and multiple bone metastases at the lumbar spine, right iliac bone, and left femur. Thirteen cycles of temsirolimus were administered to the patient, but follow-up positron emission tomography showed newly developed liver and left adrenal metastasis and increased bone metastasis. It is important to note that T1a renal cell carcinoma can present with distant metastasis and thus demands scrupulous examination even though the tumor size may be small.
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Affiliation(s)
- Seung Je Lee
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Hwang I, Jung SI, Hwang EC, Song SH, Lee HS, Kim SO, Kang TW, Kwon D, Park K. Expression and localization of aquaporins in benign prostate hyperplasia and prostate cancer. Chonnam Med J 2012; 48:174-8. [PMID: 23323224 PMCID: PMC3539099 DOI: 10.4068/cmj.2012.48.3.174] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 11/25/2012] [Accepted: 11/28/2012] [Indexed: 12/27/2022] Open
Abstract
The aquaporin (AQP) families of water channels are intrinsic membrane proteins that facilitate selective water and small solute movement across the plasma membrane. The purposes of this study were to determine the expression and localization of AQPs in benign prostatic hyperplasia and prostate cancer. Prostatic tissue was collected from patients with benign prostatic hyperplasia or prostate cancer by transurethral resection of the prostate. The expression and cellular localization of the AQPs were determined in the human prostate by Western blot and immunohistochemistry. AQP1, 3, and 9 were expressed in the human prostate. Western blot analysis revealed bands at 28-36 kDa for the AQP1, 3, and 9 proteins. Of these proteins, AQP3 and 9 were expressed in the epithelium. Immunolabeling showed that AQP1 was mainly expressed in the capillaries and venules of the prostate, AQP9 was expressed in the cytoplasm of the epithelium, and AQP3 was mainly associated with the plasma membrane of the prostatic epithelium. Only AQP3 expression was localized in the cell membrane, and expressed AQP3 was translocated to the cytoplasm in prostate cancer. The epithelium in the human prostate expresses AQP3 and 9 proteins, and the capillaries and venules of the prostate express AQP1. Characterizing or modifying the expression of AQP3 may lead to an understanding of the role of the AQPs in human prostatic disease.
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Affiliation(s)
- Insang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Kim SO, Jung HS, Jang WS, Hwang IS, Yu HS, Kwon D. Measurement of the Q-tip angle before and after tension-free vaginal tape-obturator (TVT-O): preoperative urethral mobility may predict surgical outcome. Int Urogynecol J 2012; 24:1005-9. [DOI: 10.1007/s00192-012-1978-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Accepted: 10/14/2012] [Indexed: 10/27/2022]
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