마지막회

제성욱 오늘의 문예비평 1995 오늘의 문예비평 Vol.- No.-

초음파를 이용한 방전가공에서 깊은 미세 구멍 가공

제성욱,류시형,주종남 한국정밀공학회 2003 한국정밀공학회 학술발표대회 논문집 Vol.2003 No.10월

The epidemiology of male lower urinary tract symptoms associated with benign prostatic hyperplasia: Results of 20 years of Korean community care and surveys

제성욱,최민성,강창석,김대현,최재휘,최세민,화정석,이천우,감성철,권성원,김세철,송재만,권동득,권태균,김광호,김영곤,김태형,나용길,박동수,박현준,성락희,양상국,윤성태,윤진한,이경섭,이동현,이선주,전병율,정현철,홍성준,최낙규,이윤수,현재석 대한비뇨의학회 2024 Investigative and Clinical Urology Vol.65 No.1

Purpose: To investigate the prevalence of lower urinary tract symptoms/benign prostatic hyperplasia in a Korean population. Materials and Methods: The Korean Prostate & Voiding Health Association provided free prostate-related community health care and conducted surveys in all regions of Korea from 2001 to 2022 with the cooperation of local government public health centers. A total of 72,068 males older than 50 were surveyed and analyzed. History taking, International Prostate Symptom Score (IPSS), transrectal ultrasonography, prostate-specific antigen (PSA) testing, uroflowmetry, and urine volume testing were performed. Results: The mean prostate volumes in males in their 50s, 60s, 70s, and 80s or above were 24.7 g, 27.7 g, 31 g, and 33.7 g, respectively. The proportion of males with high PSA greater than 3 ng/mL was 3.8% among males in their 50s, 7.7% among males in their 60s, 13.1% among males in their 70s, and 17.9% among males 80 years of age or older. The mean IPSS total scores in males in their 50s, 60s, 70s, and 80s or above were 10.7, 12.7, 14.5, and 16, respectively. Severe symptoms were reported by 27.3% of males, whereas 51.7% reported moderate symptoms. The mean Qmax in males in their 50s, 60s, 70s, and 80s or above were 20 mL/s, 17.4 mL/s, 15.4 mL/s, and 13.8 mL/s, respectively. Conclusions: In this population-based study, mean prostate volume, IPSS, PSA, and Qmax were 30.6±15.1 g, 14.8±8.2, 1.9±4.7 ng/mL, and 15.6±6.5 mL/s, respectively. Aging was significantly associated with increased prostate volume, PSA levels, and IPSS scores, and with decreased Qmax and urine volume.

알파차단제 투여 후 하부요로증상 및 성기능의 개선 효과

제성욱,정기현,정재훈,현재석 대한비뇨의학회 2009 Investigative and Clinical Urology Vol.50 No.4

Purpose: The association of lower urinary tract symptoms (LUTS) and erectile dysfunction has not been investigated comprehensively concerning which LUTS are associated with sexual function. Therefore, we investigated the association of each domain of the International Prostate Symptom Score (IPSS), nocturia, prostate volume, and uroflowmetry with each domain of the International Index of Erectile Function (IIEF)-5. Materials and Methods: The correlation of sexual function and LUTS was investigated in 365 men with benign prostatic hyperplasia. To measure the level of LUTS, the IPSS was calculated; uroflowmetry, residual urine measurement, and transrectal ultrasonography (TRUS) were performed; and the level of erectile dysfunction was assessed by the IIEF-5. Three months after treatment with α-blocker (tamsulosin 0.2 mg/day), IPSS, uroflowmetry, residual urine, nocturia, and IIEF-5 were assessed again to evaluate the effectiveness of treatment. Results: Erectile function deteriorated more in individuals with severe LUTS (IPSS>20) than in those with mild LUTS (IPSS<8), and IPSS, age, and nocturia correlated significantly with all IIEF-5 domains. The maximal urine velocity and the average urine velocity on uroflowmetry correlated significantly with all IIEF domains. After the administration of α-blocker for 3 months, the changed rates of the IPSS-obst domain, average uroflow, and quality of life (QoL) correlated significantly with the improvement in the total IIEF-5. Conclusions: Changes in the IPSS-obst domain, QoL, and average uroflow rate correlated significantly with changes in the total IIEF-5. Thus, it is expected that the improvement of obstructive symptoms could effectively improve erectile function. Purpose: The association of lower urinary tract symptoms (LUTS) and erectile dysfunction has not been investigated comprehensively concerning which LUTS are associated with sexual function. Therefore, we investigated the association of each domain of the International Prostate Symptom Score (IPSS), nocturia, prostate volume, and uroflowmetry with each domain of the International Index of Erectile Function (IIEF)-5. Materials and Methods: The correlation of sexual function and LUTS was investigated in 365 men with benign prostatic hyperplasia. To measure the level of LUTS, the IPSS was calculated; uroflowmetry, residual urine measurement, and transrectal ultrasonography (TRUS) were performed; and the level of erectile dysfunction was assessed by the IIEF-5. Three months after treatment with α-blocker (tamsulosin 0.2 mg/day), IPSS, uroflowmetry, residual urine, nocturia, and IIEF-5 were assessed again to evaluate the effectiveness of treatment. Results: Erectile function deteriorated more in individuals with severe LUTS (IPSS>20) than in those with mild LUTS (IPSS<8), and IPSS, age, and nocturia correlated significantly with all IIEF-5 domains. The maximal urine velocity and the average urine velocity on uroflowmetry correlated significantly with all IIEF domains. After the administration of α-blocker for 3 months, the changed rates of the IPSS-obst domain, average uroflow, and quality of life (QoL) correlated significantly with the improvement in the total IIEF-5. Conclusions: Changes in the IPSS-obst domain, QoL, and average uroflow rate correlated significantly with changes in the total IIEF-5. Thus, it is expected that the improvement of obstructive symptoms could effectively improve erectile function.

깊은 구멍 가공을 위한 가공액 초음파 가진 미세 방전가공

제성욱(Sung Uk Je),김덕환(Duck Whan Kim),이해성(Hae Sung Lee),주종남(Chong Nam Chu) Korean Society for Precision Engineering 2005 한국정밀공학회지 Vol.22 No.7

Microholes with high aspect ratio are required in microstructures. Among various methods for producing the microhole, micro electrical discharge machining (MEDM) is very effective and useful process. But, it is difficult to machine the high aspect ratio holes below 100 ㎛ in diameter because machining condition becomes unstable due to bad removal of debris at deep hole. In this paper, ultrasonic vibration is applied to MEDM work fluid to make a high aspect ratio micro hole. It is shown that the vibration is effective in circulating the debris and increasing the machining rate. As a result, produced was a micro hole with 92 ㎛ entrance diameter, 81 ㎛ exit diameter and aspect ratio 23.

Diagnosis and Treatment of Premature Ejaculation by Urologists in South Korea

서덕하,제성욱,최시민,감성철,김새웅,양대열,문두건,양상국,문기학,현재석 대한남성과학회 2016 The World Journal of Men's Health Vol.34 No.3

Purpose: This study discusses the treatment of premature ejaculation (PE) using various approaches with the goal of evaluating the methods of diagnosis and treatment of PE in clinical practice in 2014 in South Korea.Materials and Methods: We surveyed 200 urologists and andrologists who treated patients with PE from July 1, 2014 to July 29, 2014 using an online questionnaire. The questionnaire was composed of 4 parts: disease, comorbidities, diagnosis, and treatment. Using the answers to this survey, current trends in the diagnosis and treatment of PE were investigated using weighted averages.Results: The median number per month of patients who were diagnosed with PE was 14 patients (interquartile range, 7∼24). The time to ejaculation necessary for a diagnosis of PE was considered to be <1 minute by 12% of respondents, <2 minutes by 27%, <3 minutes by 28%, <5 minutes by 13%, and 20% stated that diagnosis was based on a patient’s subjective complaint. The treatment methods preferred by PE patients were reported to be pharmacological treatment (87%), surgical treatment (9.5%), and behavioral management (3.5%). The treatment methods used by respondents were pharmacological treatment (77%), surgical treatment (15%), and behavioral management (14%). The most commonly used pharmacological treatment was the oral administration of dapoxetine (97%).Conclusions: In 2014 in South Korea, various methods were used to diagnose and treat PE. The most commonly used treatment for PE was the oral administration of dapoxetine. It was also found that surgical treatment was applied in some cases.

전립선 농양에서 영상검사의 중요성과 경직장초음파를 이용한 세침흡입술의 유용성

이승현,제성욱,정재훈,정기현,현재석,서덕하 대한남성과학회 2009 The World Journal of Men's Health Vol.27 No.2

Purpose: Prostatic abscess is a very rare disease whose incidence has been reported to be approximately 0.2% in patients with urologic symptoms. Besides, it cannot be diagnosed by interview and physical examination, for which imaging studies must also be performed. In the current study, we examined the clinical usefulness of imaging studies in making a diagnosis of prostatic abscess and the effect of a fine needle aspiration based on trans-rectal ultrasonography on the treatment outcomes. Materials and Methods: In ten patients who were diagnosed with prostatic abscess and then treated during a period ranging from January of 1995 to June of 2008 (mean age: 61.8 years, range: 40-89 years), a past history, clinical symptoms, physical examination findings, laboratory findings, trans-rectal ultrasonography findings, computed tomography findings, treatment modalities and complications were retrospectively analyzed. Results: All patients complained fever and voiding dysfunction as chief complaint. On trans-rectal ultrasonography and computed tomography scans, all the ten patients had abnormal findings. In five patients, there were nonhomogenous hypo-echoic lesions on trans-rectal ultrasonography. All the patients had cystic abscess lesions detected on computed tomography scans. In four patients, in whom the diameter of lesions was greater than 1cm on computed tomography scans, a fine needle aspiration was performed on trans-rectal ultrasonography and antibiotic treatment was performed. In six patients, in whom the diameter of lesions was smaller than 1 cm on computed tomography scans, antibiotic treatment was performed. There were statistically significant differences in the length of hospital stay and the size of prostate gland between the group where a fine needle aspiration was performed using trans-rectal ultrasonography and the group where antibiotic treatment was performed (P<0.05). However, there was no significant difference in the period of antibiotic treatment (P>0.05). Length of antibiotic therapy was shorter in antibiotic therapy only group, but there was no statistically significant difference (P>0.05). Conclusions: A computed tomography is a useful diagnostic modality for prostatic abscess. Besides, a fine needle aspiration based on trans-rectal ultrasonography is one of the minimally invasive treatment regimens for prostatic abscess, whose good treatment outcomes have been well documented. Furthermore, there were no severe complications in our series.

산수유 복합 추출 분말이 발기 부전증 환자에 미치는 임상적 효과와 안전성

감성철,최세민,제성욱,이승현,화정석,정기현,강창완,현재석 대한비뇨의학회 2007 Investigative and Clinical Urology Vol.48 No.7

타다라필의 24주간 투여가 하부요로증상 및 발기부전에 미치는 영향

최세민,이승현,제성욱,감성철,화정석,정기현,현재석 대한남성과학회 2007 The World Journal of Men's Health Vol.25 No.3

거대수신증과 동반된 점액성 신우 선암

최세민,이승현,제성욱,감성철,화정석,정기현,고경혁,현재석 대한비뇨의학회 2007 Investigative and Clinical Urology Vol.48 No.11