The frequency volume chart and IPSS of all patients were analyzed for patterns of nocturia according to the number of nocturia events per night, and patients were classified into four groups (24-hour polyuria, nocturnal polyuria, reduced NBCI, and mixed type). We used the ICIQ-N module to evaluate the correlation between nocturia and quality of life. The IPSS was used simultaneously to determine the patients' prostate symptoms and relationships with nocturia. Reduced nocturnal bladder capacity or nocturnal bladder overactivity was defined as a nocturnal bladder capacity index (NBCI) >0. Nocturnal polyuria was defined as NUV/TUV >0.2 in patients aged 18 to 49 years, NUV/TUV of 0.2 to 0.33 in those aged 18–49, 50–64, ≥65 years, and NUV/TUV >0.33 in those older than 65 years of age. Twenty-four-hour polyuria was defined as a total voiding volume exceeding 2.8 liters per day. The total urine volume (TUV), nocturnal urine volume (NUV), and functional bladder capacity (FBC) were reviewed from the frequency volume charts. In an effort to collect cornerstone data for treatment of nocturia in Korean men, the present study was conducted to assess the categories of nocturia by analyzing the frequency volume chart in male patients with LUTS accompanying nocturia one or more times a day and relationships with IPSS in Korean men.įrom the included patients, completed 3-day frequency volume charts and the IPSS were analyzed. A 3-consecutiveday chart is widely used to assess patients' voiding patterns. The frequency volume chart is a simple but essential for measuring the outcomes in clinical trials of interventions for LUTS. However, in Korea, few studies have evaluated nocturia, especially with the frequency volume chart and international prostate symptom score (IPSS) in men. reported that benign prostate hyperplasia was an independent positive risk factor for nocturia. reported that nocturia plays an important role in patients younger than 65 years of age in daytime dysfunction, which should not be overlooked.īecause nocturia affects a significant proportion of adults and has a detrimental effect on health-related quality of life, the impact, cause, and result of lower urinary tract symptoms (LUTS) and nocturia have been widely studied in North America and Europe. The overall prevalence rates for nocturia range from 10.8% to 25% in men and increase with age, and the most frequent concern regarding nocturia in elderly individuals is that rising at night to urinate could induce traumatic falls that lead to prolonged morbidity. Although nocturia can occur at any age, it is more common among older adults, and was the most commonly reported storage symptom for both men and women in five European countries. Nocturia is associated with ageing, behavioral influences (e.g., late-night fluid intake and consumption of caffeine) or several medical conditions (e.g., diabetes, congestive heart failure, lower urinary tract obstruction, prostatic disease, and overactive bladder). Its causes are varied, and in many patients, its cause is difficult to discern. Nocturia is the condition when an individual has to wake at night one or more times for voiding. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea. Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Korea.ģDepartment of Urology, Soonchunhyang University Bucheon Hospital, College of Medicine, Soonchunhyang University, Bucheon, Korea.ĤDepartment of Urology, Ajou University School of Medicine, Suwon, Korea.ĥDepartment of Urology, Inha University Hospital, College of Medicine, Inha University, Incheon, Korea.ĦDepartment of Urology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.ĢDepartment of Urology, Bucheon St. Yong Sun Choi, 1 Joon Chul Kim, 2 Young Ho Kim, 3 Jong Bo Choi, 4 Won Hee Park, 5ġDepartment of Urology, Eunpyeong St. © The Korean Urological Association, 2019Ĭlassification of nocturia by analyzing frequency volume chart and relations with international prostate symptom score in male patients with lower urinary tract symptoms in Korea
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