1.Usage and perceptions of phosphodiesterase type 5 inhibitors among the male partners of infertile couples.
Seung Hun SONG ; Dong Suk KIM ; Sung Han SHIM ; Jung Jin LIM ; Seung Choul YANG
Clinical and Experimental Reproductive Medicine 2016;43(1):26-30
OBJECTIVE: We aimed to investigate the prevalence of erectile dysfunction (ED) and the usage of phosphodiesterase type 5 (PDE5) inhibitors for ED treatment in infertile couples. METHODS: A total of 260 male partners in couples reporting infertility lasting at least 1 year were included in this study. In addition to an evaluation of infertility, all participants completed the International Index of Erectile Function (IIEF)-5 questionnaire to evaluate their sexual function. The participants were asked about their use of PDE5 inhibitors while trying to conceive during their partner's ovulatory period and about their concerns regarding the risks of PDE5 inhibitor use to any eventual pregnancy and/or the fetus. RESULTS: Based on the IIEF-5 questionnaire, 41.5% of the participants (108/260) were classified as having mild ED (an IIEF-5 score of 17-21), while 10.4% of the participants (27/260) had greater than mild ED (an IIEF-5 score of 16 or less). The majority (74.2%, 193/260) of male partners of infertile couples had a negative perception of the safety of using a PDE5 inhibitor while trying to conceive. Only 11.1% of men (15/135) with ED in infertile couples had used a PDE5 inhibitor when attempting conception. CONCLUSION: ED was found to be common in the male partners of infertile couples, but the use of PDE5 inhibitors among these men was found to be very low. The majority of male partners were concerned about the risks of using PDE5 inhibitors when attempting to conceive. Appropriate counseling about this topic and treatment when necessary would likely be beneficial to infertile couples in which the male partner has ED.
Counseling
;
Erectile Dysfunction
;
Family Characteristics*
;
Fertilization
;
Fetus
;
Humans
;
Infertility
;
Male*
;
Phosphodiesterase 5 Inhibitors*
;
Pregnancy
;
Prevalence
2.Adjuvant Radiotherapy Outcome of Stage I Testicular Seminoma: A Single Institution Study.
Hayoon LEE ; Jun Won KIM ; Sung Joon HONG ; Seung Choul YANG ; Young Deuk CHOI ; Koon Ho RHA ; Jaeho CHO
Yonsei Medical Journal 2015;56(1):24-30
PURPOSE: To analyze treatment outcome and side effects of adjuvant radiotherapy using radiotherapy fields and doses which have evolved over the last two decades in a single institution. MATERIALS AND METHODS: Forty-one patients received radiotherapy after orchiectomy from 1996 to 2007. At our institution, the treatment field for stage I seminoma has changed from dog-leg (DL) field prior to 2003 to paraaortic (PA) field after 2003. Fifteen patients were treated with the classic fractionation scheme of 25.5 Gy at 1.5 Gy per fraction. Other patients had been treated with modified schedules of 25.05 Gy at 1.67 Gy per fraction (n=15) and 25.2 Gy at 1.8 Gy per fraction (n=11). RESULTS: With a median follow-up of 112 months, the 5-year and 10-year survival rates were 100% and 96%, respectively, and 5-year and 10-year relapse-free survival rates were both 97.1%. No in-field recurrence occurred. Contralateral seminoma occurred in one patient 5 years after treatment. No grade III-IV acute toxicity occurred. An increased rate of grade 1-2 acute hematologic toxicity was found in patients with longer overall treatment times due to 1.5 Gy per fraction. The rate of grade 2 acute gastrointestinal toxicity was significantly higher with DL field than with PA field and also higher in the 1.8-Gy group than in the 1.5-Gy and 1.67-Gy groups. CONCLUSION: Patients with stage I seminoma were safely treated with PA-only radiotherapy with no pelvic failure. Optimal fractionation schedule needs to be explored further in order to minimize treatment-related toxicity.
Adult
;
Disease-Free Survival
;
Dose Fractionation
;
Follow-Up Studies
;
Humans
;
Male
;
Middle Aged
;
Neoplasm Recurrence, Local/pathology
;
Radiotherapy, Adjuvant/adverse effects
;
Seminoma/*radiotherapy
;
Testicular Neoplasms/*radiotherapy
;
Treatment Outcome
;
Young Adult
3.Prognostic Impacts of Metastatic Site and Pain on Progression to Castrate Resistance and Mortality in Patients with Metastatic Prostate Cancer.
Kyo Chul KOO ; Sang Un PARK ; Ki Hong KIM ; Koon Ho RHA ; Sung Joon HONG ; Seung Choul YANG ; Byung Ha CHUNG
Yonsei Medical Journal 2015;56(5):1206-1212
PURPOSE: To investigate predictors of progression to castration-resistant prostate cancer (CRPC) and cancer-specific mortality (CSM) in patients with metastatic prostate cancer (mPCa). MATERIALS AND METHODS: A retrospective analysis was performed on 440 consecutive treatment-naive patients initially diagnosed with mPCa between August 2000 and June 2012. Patient age, body mass index (BMI), Gleason score, prostate-specific antigen (PSA), PSA nadir, American Joint Committee on Cancer stage, Visual Analogue Scale pain score, Eastern Cooperative Oncology Group performance score (ECOG PS), PSA response to hormone therapy, and metastatic sites were assessed. Cox-proportional hazards regression analyses were used to evaluate survivals and predictive variables of men with bone metastasis stratified according to the presence of pain, compared to men with visceral metastasis. RESULTS: Metastases were most often found in bone (75.4%), followed by lung (16.3%) and liver (8.3%) tissues. Bone metastasis, pain, and high BMI were associated with increased risks of progression to CRPC, and bone metastasis, pain, PSA nadir, and ECOG PS> or =1 were significant predictors of CSM. During the median follow-up of 32.0 (interquartile range 14.7-55.9) months, patients with bone metastasis with pain and patients with both bone and visceral metastases showed the worst median progression to CRPC-free and cancer-specific survivals, followed by men with bone metastasis without pain. Patients with visceral metastasis had the best median survivals. CONCLUSION: Metastatic spread and pain patterns confer different prognosis in patients with mPCa. Bone may serve as a crucial microenvironment in the development of CRPC and disease progression.
Aged
;
Bone Neoplasms/secondary
;
*Disease Progression
;
Humans
;
Male
;
Middle Aged
;
Neoplasm Grading
;
Neoplasm Metastasis
;
Pain/diagnosis/etiology/prevention & control
;
Pain Measurement
;
Prognosis
;
Prostate-Specific Antigen/blood
;
Prostatic Neoplasms/mortality/*pathology
;
Prostatic Neoplasms, Castration-Resistant/mortality/*pathology
;
Retrospective Studies
;
Risk
;
Treatment Outcome
4.Treatment outcome of localized prostate cancer by 70 Gy hypofractionated intensity-modulated radiotherapy with a customized rectal balloon.
Hyunjung KIM ; Jun Won KIM ; Sung Joon HONG ; Koon Ho RHA ; Chang Geol LEE ; Seung Choul YANG ; Young Deuk CHOI ; Chang Ok SUH ; Jaeho CHO
Radiation Oncology Journal 2014;32(3):187-197
PURPOSE: We aimed to analyze the treatment outcome and long-term toxicity of 70 Gy hypofractionated intensity-modulated radiotherapy (IMRT) for localized prostate cancer using a customized rectal balloon. MATERIALS AND METHODS: We reviewed medical records of 86 prostate cancer patients who received curative radiotherapy between January 2004 and December 2011 at our institution. Patients were designated as low (12.8%), intermediate (20.9%), or high risk (66.3%). Thirty patients received a total dose of 70 Gy in 28 fractions over 5 weeks via IMRT (the Hypo-IMRT group); 56 received 70.2 Gy in 39 fractions over 7 weeks via 3-dimensional conformal radiotherapy (the CF-3DRT group, which served as a reference for comparison). A customized rectal balloon was placed in Hypo-IMRT group throughout the entire radiotherapy course. Androgen deprivation therapy was administered to 47 patients (Hypo-IMRT group, 17; CF-3DRT group, 30). Late genitourinary (GU) and gastrointestinal (GI) toxicity were evaluated according to the Radiation Therapy Oncology Group criteria. RESULTS: The median follow-up period was 74.4 months (range, 18.8 to 125.9 months). The 5-year actuarial biochemical relapse-free survival rates for low-, intermediate-, and high-risk patients were 100%, 100%, and 88.5%, respectively, for the Hypo-IMRT group and 80%, 77.8%, and 63.6%, respectively, for the CF-3DRT group (p < 0.046). No patient presented with acute or late GU toxicity > or =grade 3. Late grade 3 GI toxicity occurred in 2 patients (3.6%) in the CF-3DRT group and 1 patient (3.3%) in the Hypo-IMRT group. CONCLUSION: Hypo-IMRT with a customized rectal balloon resulted in excellent biochemical control rates with minimal toxicity in localized prostate cancer patients.
Follow-Up Studies
;
Humans
;
Medical Records
;
Prostatic Neoplasms*
;
Radiotherapy
;
Radiotherapy, Conformal
;
Radiotherapy, Intensity-Modulated*
;
Survival Rate
;
Treatment Outcome*
5.Charlson Comorbidity Index Is an Important Prognostic Factor for Long-Term Survival Outcomes in Korean Men with Prostate Cancer after Radical Prostatectomy.
Joo Yong LEE ; Dae Hun LEE ; Nam Hoon CHO ; Koon Ho RHA ; Young Deuk CHOI ; Sung Joon HONG ; Seung Choul YANG ; Kang Su CHO
Yonsei Medical Journal 2014;55(2):316-323
PURPOSE: To analyze overall survival (OS), prostate cancer (PCa)-specific survival (PCaSS), and non-PCaSS according to the Charlson Comorbidity Index (CCI) after radical prostatectomy (RP) for PCa. MATERIALS AND METHODS: Data from 336 patients who had RP for PCa between 1992 and 2005 were analyzed. Data included age, preoperative prostate-specific antigen (PSA), prostate volume, clinical stage, and pathologic stage. Pre-existing comorbidities were evaluated by the CCI, and patients were classified into two CCI score categories (0, > or =1). RESULTS: The mean age of patients was 64.31+/-6.12 years. The median PSA value (interquartile range, IQR) was 11.30 (7.35 and 21.02) ng/mL with a median follow-up period (IQR) of 96.0 (85.0 and 121.0) months. The mean CCI was 0.28 (0-4). Five-year OS, PCaSS, and non-PCaSS were 91.7%, 96.3%, and 95.2%, respectively. Ten-year OS, PCaSS, and non-PCaSS were 81.9%, 92.1%, and 88.9%, respectively. The CCI had a significant influence on OS (p=0.022) and non-PCaSS (p=0.008), but not on PCaSS (p=0.681), by log-rank test. In multivariate Cox regression analysis, OS was independently associated with the CCI [hazard ratio (HR)=1.907, p=0.025] and Gleason score (HR=2.656, p<0.001). PCaSS was independently associated with pathologic N stage (HR=2.857, p=0.031), pathologic T stage (HR=3.775, p=0.041), and Gleason score (HR=4.308, p=0.001). Non-PCaSS had a significant association only with the CCI (HR=2.540, p=0.009). CONCLUSION: The CCI was independently associated with both OS and non-PCaSS after RP, but the CCI had no impact on PCaSS. The comorbidities of a patient should be considered before selecting RP as a curative modality for PCa.
Comorbidity*
;
Follow-Up Studies
;
Humans
;
Male
;
Methods
;
Neoplasm Grading
;
Passive Cutaneous Anaphylaxis
;
Prostate*
;
Prostate-Specific Antigen
;
Prostatectomy*
;
Prostatic Neoplasms*
;
Regression Analysis
6.Prognostic Factors for Urachal Cancer: A Bayesian Model-Averaging Approach.
In Kyong KIM ; Joo Yong LEE ; Jong Kyou KWON ; Jae Joon PARK ; Kang Su CHO ; Won Sik HAM ; Sung Joon HONG ; Seung Choul YANG ; Young Deuk CHOI
Korean Journal of Urology 2014;55(9):574-580
PURPOSE: This study was conducted to evaluate prognostic factors and cancer-specific survival (CSS) in a cohort of 41 patients with urachal carcinoma by use of a Bayesian model-averaging approach. MATERIALS AND METHODS: Our cohort included 41 patients with urachal carcinoma who underwent extended partial cystectomy, total cystectomy, transurethral resection, chemotherapy, or radiotherapy at a single institute. All patients were classified by both the Sheldon and the Mayo staging systems according to histopathologic reports and preoperative radiologic findings. Kaplan-Meier survival curves and Cox proportional-hazards regression models were carried out to investigate prognostic factors, and a Bayesian model-averaging approach was performed to confirm the significance of each variable by using posterior probabilities. RESULTS: The mean age of the patients was 49.88+/-13.80 years and the male-to-female ratio was 24:17. The median follow-up was 5.42 years (interquartile range, 2.8-8.4 years). Five- and 10-year CSS rates were 55.9% and 43.4%, respectively. Lower Sheldon (p=0.004) and Mayo (p<0.001) stage, mucinous adenocarcinoma (p=0.005), and larger tumor size (p=0.023) were significant predictors of high survival probability on the basis of a log-rank test. By use of the Bayesian model-averaging approach, higher Mayo stage and larger tumor size were significant predictors of cancer-specific mortality in urachal carcinoma. CONCLUSIONS: The Mayo staging system might be more effective than the Sheldon staging system. In addition, the multivariate analyses suggested that tumor size may be a prognostic factor for urachal carcinoma.
Adult
;
Bayes Theorem
;
Carcinoma/*pathology/*therapy
;
Disease-Free Survival
;
Female
;
Follow-Up Studies
;
Humans
;
Kaplan-Meier Estimate
;
Male
;
Middle Aged
;
Neoplasm Staging
;
Prognosis
;
Proportional Hazards Models
;
Risk Factors
;
Treatment Outcome
;
Urinary Bladder Neoplasms/*pathology/*therapy
7.Prognostic Factors for Urachal Cancer: A Bayesian Model-Averaging Approach.
In Kyong KIM ; Joo Yong LEE ; Jong Kyou KWON ; Jae Joon PARK ; Kang Su CHO ; Won Sik HAM ; Sung Joon HONG ; Seung Choul YANG ; Young Deuk CHOI
Korean Journal of Urology 2014;55(9):574-580
PURPOSE: This study was conducted to evaluate prognostic factors and cancer-specific survival (CSS) in a cohort of 41 patients with urachal carcinoma by use of a Bayesian model-averaging approach. MATERIALS AND METHODS: Our cohort included 41 patients with urachal carcinoma who underwent extended partial cystectomy, total cystectomy, transurethral resection, chemotherapy, or radiotherapy at a single institute. All patients were classified by both the Sheldon and the Mayo staging systems according to histopathologic reports and preoperative radiologic findings. Kaplan-Meier survival curves and Cox proportional-hazards regression models were carried out to investigate prognostic factors, and a Bayesian model-averaging approach was performed to confirm the significance of each variable by using posterior probabilities. RESULTS: The mean age of the patients was 49.88+/-13.80 years and the male-to-female ratio was 24:17. The median follow-up was 5.42 years (interquartile range, 2.8-8.4 years). Five- and 10-year CSS rates were 55.9% and 43.4%, respectively. Lower Sheldon (p=0.004) and Mayo (p<0.001) stage, mucinous adenocarcinoma (p=0.005), and larger tumor size (p=0.023) were significant predictors of high survival probability on the basis of a log-rank test. By use of the Bayesian model-averaging approach, higher Mayo stage and larger tumor size were significant predictors of cancer-specific mortality in urachal carcinoma. CONCLUSIONS: The Mayo staging system might be more effective than the Sheldon staging system. In addition, the multivariate analyses suggested that tumor size may be a prognostic factor for urachal carcinoma.
Adult
;
Bayes Theorem
;
Carcinoma/*pathology/*therapy
;
Disease-Free Survival
;
Female
;
Follow-Up Studies
;
Humans
;
Kaplan-Meier Estimate
;
Male
;
Middle Aged
;
Neoplasm Staging
;
Prognosis
;
Proportional Hazards Models
;
Risk Factors
;
Treatment Outcome
;
Urinary Bladder Neoplasms/*pathology/*therapy
8.Influence of Oral and Intravenous Bisphosphonate for the Patients Treated Surgically in Osteoporotic Distal Radius Fracture
Joong Bae SEO ; Jong Pil KIM ; Ki Choul KIM ; Changhwan HWANG ; Seokwon YANG ; Jae Sung YOO
Journal of Korean Society of Osteoporosis 2013;11(2):89-95
OBJECTIVES: Purpose of this study is investigation the influence of intravenous and oral bisphosphonate to bone union and clinical results in patient treated with plate fixation in an osteoporotic distal radius fracture. MATERIALS AND METHODS: The medical records of 160 patients with an osteoporotic distal radius fracture treated with plate fixation in our hospital between January 2008 and April 2012 were reviewed retrospectively. The patients were classified by 3 groups; who did not administrate bisphosphonate after surgery as Group I (n=69), administrated oral bisphosphonate after surgery as Group II (n=44), and administrated intravenous bisphosphonate as Group III (n=47). After surgery, bone union, radiologic parameters, disabilities of the DASH score and range of motion of wrist were assessed. RESULTS: Mean time of bone union was 6.7 weeks in Group I, 6.8 weeks in Group II, and 7.1 weeks in Group III. There was no significant difference between three groups (P=0.571). Bone union rate on 6weeks shows no significant differences between three groups (P=0.16). Three groups also have no significant differences in all radiologic and clinical parameters. CONCLUSION: This study shows that early initiation of oral and Intravenous bisphosphonate did not affect bone union and clinical results compared to group who did not administrate bisphosphonate result in patient treated with plate fixation in an osteoporotic distal radius fracture.
Humans
;
Medical Records
;
Osteoporosis
;
Radius Fractures
;
Radius
;
Range of Motion, Articular
;
Retrospective Studies
;
Wrist
9.A Prospective Study of Single-Dose Antibiotic Prophylaxis in Live Donor Nephrectomy.
Ho Sung JANG ; Kyung Hwa CHOI ; Seung Choul YANG ; Woong Kyu HAN
Korean Journal of Urology 2011;52(2):115-118
PURPOSE: To perform a prospective analysis of the clinical outcomes of prophylactic antibiotic treatment before the standard surgical modality of living donor nephrectomy (LDN) without postoperative antibiotic treatment. MATERIALS AND METHODS: From November 2005 to June 2010, a total of 470 patients underwent LDN at our medical institution, and 280 of these patients were injected with 1 g cephalosporin 30 minutes before the operation. The group receiving prophylactic antibiotics was compared with a control group composed of 190 patients who received injections of 2 g cephalosporin per day for 5 days after the operation. The presence of fever, incidence of blood transfusion, and period of drainage use were compared between the two groups. RESULTS: There were no significant differences in gender, age, body mass index, incidence of blood transfusion after the operation, fever over 38degrees C 3 days after the operation, or period of drain insertion between the single-dose group and the control group. The follow-up was conducted for 1 month after the operation, and 1 case of surgical site infection (SSI) was observed in each group (p=0.783). CONCLUSIONS: Of 280 patients in the single-dose group, 1 contracted SSI. In comparison with the control group, which was dosed with prophylactic antibiotics for 5 days after the operation, the single-dose group did not have a significantly different occurrence of SSI. We found that the incidence rate of SSI did not increase, even though prophylactic antibiotics were not used after standard and conventional open surgeries, such as video-assisted minilaparotomy surgery.
Anti-Bacterial Agents
;
Antibiotic Prophylaxis
;
Blood Transfusion
;
Body Mass Index
;
Contracts
;
Drainage
;
Fever
;
Follow-Up Studies
;
Humans
;
Incidence
;
Laparotomy
;
Living Donors
;
Nephrectomy
;
Prospective Studies
;
Surgical Wound Infection
;
Tissue Donors
;
Video-Assisted Surgery
10.Comparison of Two Local Anesthesia Injection Methods During a Transrectal Ultrasonography-guided Prostate Biopsy.
Song Ee BAEK ; Young Taik OH ; Jang Hwan KIM ; Koon Ho RHA ; Sung Joon HONG ; Seung Choul YANG
Journal of the Korean Society of Medical Ultrasound 2010;29(3):165-169
PURPOSE: To compare the effectiveness of 2 injection methods of lidocaine during a transrectal ultrasound (TRUS)-guided prostate biopsy for pain control and complication rates. MATERIALS AND METHODS: We retrospectively evaluated patients who underwent a TRUS-guided prostate biopsy from March 2005 to March 2006. One hundred patients were categorized into two groups based on injection method. For group 1, 10 mL of 1% lidocaine was injected bilaterally at the junction of the seminal vesicle and prostate and for group 2, into Denonvilliers' fascia. Pain scores using a visual analog scale (VAS) as well as immediate and delayed complication rates were evaluated. RESULTS: The mean VAS score showed no significant differences between the groups (group 1, 3.4+/-1.78; group 2, 2.8+/-1.3; p = 0.062). The difference in delayed complication rates and incidence of hematuria, hemospermia, and blood via the rectum was not significant between groups. However, two patients in group 1 complained of symptoms immediately after local anesthesia; one of tinnitus and the other of mild dizziness. CONCLUSION: There were no significant differences between pain control and complication rates between the 2 lidocaine injection methods. However, injection into Denonvilliers' fascia is thought to have less potential risk.
Anesthesia, Local
;
Biopsy
;
Dizziness
;
Fascia
;
Hematuria
;
Hemospermia
;
Humans
;
Incidence
;
Lidocaine
;
Nerve Block
;
Prostate
;
Rectum
;
Retrospective Studies
;
Seminal Vesicles
;
Tinnitus

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