Young Tae Moon

Bio: Young Tae Moon is an academic researcher from Chung-Ang University. The author has contributed to research in topics: Extracorporeal shock wave lithotripsy & Lithotripsy. The author has an hindex of 13, co-authored 46 publications receiving 482 citations. Previous affiliations of Young Tae Moon include Washington University in St. Louis.

Evaluation of Optimal Stent Size After Endourologic Incision of Ureteral Strictures

Abstract: The stent size necessary to promote optimal ureteral healing after an endoureterotomy is not known. We compared healing of an endoureterotomy over a 7F indwelling ureteral stent with healing over a 14F endopyelotomy stent. A midureteral stricture was created in each of 25 anesthetized female minipigs using an electrified stone basket passed retrograde. Six weeks later, the stricture was incised with a 24F cutting balloon device. Twenty pigs were randomized to receive a 7F or a 14F stent; four control pigs received neither incisions nor stents. At 1 week, a radiograph was performed to confirm proper stent position, and the stents were removed. At 3 months, a retrograde ureterogram was performed, and the ureters were examined grossly and harvested for histologic studies. Two of the ten pigs in each study group developed a recurrent stricture. The use of a 14F stent provided no advantage over the use of a smaller, more easily positioned 7F stent.

Fate of Clinically Insignificant Residual Fragments after Extracorporeal Shock Wave Lithotripsy with EDAP LT-01 Lithotripter

Abstract: The stone-free rate of 248 cases of clinically insignificant residual fragments (CIRF) was 32.7% by 1 month, 73.0% by 3 months, and 92.7% by 6 months of follow-up. The stone-free rate decreased but...

Impact of Changing Trends in Medical Therapy on Surgery for Benign Prostatic Hyperplasia Over Two Decades

Abstract: Purpose: Following the introduction of medical therapy for benign prostatic hyperplasia (BPH), we determined the effect of the change in trends in medical therapy on the indication and outcome of surgical intervention for BPH. Materials and Methods: We compared the basic characteristics of, weight of resected tissue of, transfusions in, and postoperative complications of patients who underwent surgery between 1985 and 1989 (before the advent of medical therapy for BPH), between 1995 and 1999 (when medical therapy was developed and became widely used as alternative treatment), and between 2005 and 2009 (when medical therapy superseded surgical intervention to become first-line treatment and when combination therapy became widely adopted). Results: At our institution, the mean age and BMI of patients increased over the past two decades (p＜0.001). Hypertension, operation history, and other comorbidities also increased significantly (p＜0.001, p=0.005, and p＜0.001, respectively). The indications for surgery in 1985 to 1989, 1995 to 1999, and 2005 to 2009 were as follows: acute urinary retention in 34.7%, 20.2%, and 15.1% of patients and symptomatic deterioration in 61.1%, 72.3%, and 73.0% of patients, respectively. Prostate volume and the weight of resected tissue increased from 34.4±14.5 ml to 61.3±32.4 ml and from 7.2±6.4 g to 10.8±7.6 g, respectively, over two decades. Patients who underwent surgery in 2005 to 2009 had their catheters removed earlier (p＜0.001). Secondary hemorrhage within four postoperative weeks and repeat transurethral resection of the prostate within 1 year decreased significantly (p=0.03 and p=0.003, respectively). No statistically significant change in impaired detrusor contractility was found (p=0.523). Conclusions: Although patients who underwent surgery were older after widespread use of medical therapy for BPH, advancements in surgical techniques have benefitted these patients.

Epidemiology, impact and preventive care of chronic kidney disease in Taiwan.

Abstract: Chronic kidney disease (CKD) has emerged as a global public health burden. Taiwan has the highest incidence and prevalence rates of endstage renal disease (ESRD) in the world. In this review, the following key issues of CKD in Taiwan are addressed: epidemiological data, underlying diseases patterns, risk factors, public health concerns and a preventive project. Prevalence of CKD are reported to be 6.9% for CKD stage 3–5, 9.83% for clinically recognized CKD and 11.9% for CKD stage 1–5. However, overall awareness of CKD is low, 9.7% for CKD stage 1–3 and 3.5% for stage 1–5. Diabetes mellitus (43.2%), chronic glomerulonephritis (25.1%), hypertension (8.3%) and chronic interstitial nephritis (2.8%) are four major underlying renal diseases of ESRD. Older age, diabetes, hypertension, smoking, obesity, regular use of herbal medicine, family members (both relatives and spouses), chronic lead exposure and hepatitis C are associated with higher risk for CKD. Impact of CKD increases risk of allcause mortality and cardiovascular diseases, especially in those with overt proteinuria and advanced CKD stages. These impacts lead to increased medical costs. The nationwide CKD Preventive Project with multidisciplinary care program has proved its effectiveness in decreasing dialysis incidence, mortality and medical costs. It is crucially significant from Taiwan experience on CKD survey and preliminary outcome of the preventive project. Provision of a more comprehensive public health strategy and better care plan for CKD should be achieved by future international collaborative efforts and research. Chronic kidney disease (CKD) has emerged as a global public health burden for its increasing number of patients, high risk of progression to end-stage renal disease (ESRD), and poor prognosis of morbidity and mortality. 1,2 It attracts worldwide attention to its epidemiology, risk factors, treatment plans and preventive actions. 3 Estimated glomerular filtration rate (eGFR) has become a standard method to evaluate CKD based on diagnostic criteria and classification by the National Kidney Foundation, USA. 4 However, the reported prevalence of CKD has varied among different countries because of the discrepancies in age, ethnic groups, survey policies and equations of eGFR calculation. 5‐10 The patterns of associated risk factors and targeting strategies are also quite diverse. Taiwan has the highest incidence and prevalence rates of ESRD in the world according to the United States Renal Data