The Japanese Journal of Urology
Online ISSN : 1884-7110
Print ISSN : 0021-5287
ISSN-L : 0021-5287
Volume 109 , Issue 1
Showing 1-11 articles out of 11 articles from the selected issue
Case Reports
  • Koji Mita, Kohei Kobatake, Shinya Ohara, Masao Kato
    2018 Volume 109 Issue 1 Pages 1-6
    Published: January 20, 2018
    Released: January 18, 2019
    JOURNALS FREE ACCESS

    (Objective) To evaluate the utility of laparoscopic radical cystectomy (LRC), we retrospectively compared the background factors and perioperative parameters of LRC with those of open radical cystectomy (ORC).

    (Patients and methods) The study cohort consisted of 116 consecutive patients who underwent radical cystectomy by LRC (n=59) or ORC (n=57). The background factors and perioperative parameters were compared between LRC and ORC.

    (Results) The patients consisted of 103 men and 13 women with a median age of 69 years and median BMI of 23.0. Their clinical stage was as follows, ≤T1: 19 cases, T2: 69 cases, T3: 25 cases and T4: 3 cases, respectively.

    While the patients' age at the time of LRC was significantly higher than that of ORC (71.3 yrs vs. 66.2 yrs, P<0.001) and the ASA physical status of LRC was significantly higher than that of ORC (P=0.028), the other background factors were not different between the two groups.

    Although there was no difference in the total operating time between LRC and ORC, the estimated blood loss for LRC was significantly less than that for ORC (372.3 ml vs. 2,134.5 ml, P<0.001) and the duration of the postoperative hospital stay for LRC was significantly shorter than that for ORC (23.5 days vs. 36.9 days, P<0.001).

    There were no significant differences in the pathological findings, of the postoperative recurrence-free rate or cancer-specific survival rate between the LRC and ORC groups. In multivariate analysis, only pN+was an independent predictive factor of postoperative recurrence.

    (Conclusion) This study showed that LRC is less invasive and can lead to similar oncological outcomes compared with ORC.

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  • Ryotaro Tomida, Kosuke Seto, Takuya Tsujioka, Hiroyuki Iio, Kenichi Ni ...
    2018 Volume 109 Issue 1 Pages 7-13
    Published: January 20, 2018
    Released: January 18, 2019
    JOURNALS FREE ACCESS

    (Objectives) Recently, partial nephrectomy has been recommended for patients with T1 renal cell carcinoma to preserve renal function. In this study, we retrospectively investigated the factors that affect renal function after laparoscopic or robotic partial nephrectomy using cold or warm ischemia.

    (Patients and methods) We reviewed 105 patients who underwent laparoscopic or robotic partial nephrectomy between March 2006 and July 2016. Patients who had a single kidney were excluded. Thirty-nine patients were managed with cold ischemia, and 66 were managed with warm ischemia. Renal function was assessed using the estimated glomerular filtration rate (eGFR) and glomerular filtration rate (GFR) categories of the stage of chronic kidney disease (CKD).

    (Results) In the cold and warm ischemia groups, the duration of ischemia was significantly correlated with deterioration of the eGFR at 12 months postoperatively, but the duration of ischemia was not significantly correlated with exacerbation of the GFR categories for the stage of CKD in multivariate analyses.

    (Conclusions) These results suggest that the ischemia time may not have an impact on prognosis. However, due to the lack of deaths from renal carcinoma or cardiovascular events postoperatively in this study, the influence of each factor on overall survival or cardiovascular events could not be evaluated. More investigations are necessary to discern the acceptable level of deterioration and the corresponding clinical implications for postoperative eGFR.

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  • Hiroo Kuroki, Masayuki Tasaki, Kazuhide Saito, Yuki Nakagawa, Yohei Ik ...
    2018 Volume 109 Issue 1 Pages 14-19
    Published: January 20, 2018
    Released: January 18, 2019
    JOURNALS FREE ACCESS

    (Background) Long-term care is necessary for normal growth and development of pediatric recipients of kidney transplants. We report on our experience with pediatric kidney transplantation (KTx) during the past 19 years.

    (Methods) We retrospectively analyzed the data from 26 recipients who received KTx between 1996 and 2014 at Niigata University Hospital (one patient underwent two consecutive KTx during the designated period). All recipients were 16 years old or younger at the time of KTx.

    (Results) The graft survival rates at 1, 5, and 10 years after transplantation were 96%, 96%, and 88%, respectively. Three recipients lost the renal graft function due to graft thrombosis, antibody mediated rejection and steroid resistant rejection. Drug non-adherence was associated with rejection episodes, which led to the increasing of estimated glomerular filtration rate (eGFR) level. In addition, renal graft function was related to the growth after KTx. Eighteen recipients graduated from high school during follow-up periods and 17 recipients obtained employment.

    (Conclusion) Interventions promoting adherence should be implemented among pediatric recipients and parents to optimize graft survival and growth after KTx. Successful KTx contributed the high rate of social participation and employment after pediatric KTx.

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  • Akio Takayanagi, Ko Kobayashi, Fumimasa Fukuta, Hidetoshi Tabata, Masa ...
    2018 Volume 109 Issue 1 Pages 20-24
    Published: January 20, 2018
    Released: January 18, 2019
    JOURNALS FREE ACCESS

    (Purpose) We conducted cross-sectional studies two times, in 1992 and 2007 and investigated the longitudinal changes of fT levels and sexual function by comparing the results.

    (Methods) In 1992 and 2007, we conducted cross-sectional surveys about lower urinary tract symptoms and sexual function in male inhabitants aged 40 to 79 years in Shimakaki village, Hokkaido. Comparing the results of these surveys, we analyzed longitudinal changes in fT levels and sexual function. FT levels were measured by radioimmunoassay and sexual function was evaluated using a validated questionnaire.

    (Results) A total of 123 inhabitants participated in the both surveys. The average age at the initial survey was 57.2 years.

    Complications causing sexual dysfunction were observed in 43 participants (35%) and 75 participants (61%) in the first and second surveys, respectively. Average fT levels were 12.9 pg/ml and 4.4 pg/ml in the first and second surveys, respectively. Linear approximations of fT (Y) using age (X) were Y = -0.12 X+19.6 and Y = -0.10 X+11.6, for the first and second surveys, respectively. Although decreased fT levels with aging were comparable in both surveys, fT levels were lower in the second survey than in the first survey. There was no significant association between fT levels and sexual function.

    (Conclusions) The fT levels at the time of the second surey were lower than those in the first survey. The fT level has no significant association with sexual function.

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Case Reports
  • Tomoyuki Tatenuma, Nobuhiko Mizuno, Ryosuke Jikuya, Akihito Hashizume, ...
    2018 Volume 109 Issue 1 Pages 25-29
    Published: January 20, 2018
    Released: January 18, 2019
    JOURNALS FREE ACCESS

    A 34-year-old man presented with scrotal pain and slight fever. The scrotal pain was improved by the treatment of antibiotics, but the slight fever remained and an abdominal protuberance appeared. Computed tomography showed a 22 cm abdominal tumor with lipid density. He was then referred to our hospital. He was diagnosed as retroperitoneal liposarcoma and a surgical resection was performed for retroperitoneal tumor and surrounding organs. Histopathological diagnosis was dedifferentiated liposarcoma. 3 months after surgery, a PET/CT scan showed multiple lung metastases. We treated the patient with AI therapy by doxorubicin and ifosfamide. After 6 courses were performed, a complete response was achieved. 30months after the initial surgery, a PET/CT scan showed there was just one metastasis which was in the left lung. Thoracoscopic lung tumor resection was performed. Histopathological diagnosis was metastatic dedifferentiated liposarcoma. As adjuvant therapy, we treated with IE therapy by ifosfamide and VP-16. 3 courses were performed. 3 years and 6 months after the first surgery, he has had no recurrence up to the present day.

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  • Yasuyuki Kobayashi, Hiroki Arai, Masahito Honda, Yumiko Yasuhara, Kyot ...
    2018 Volume 109 Issue 1 Pages 30-34
    Published: January 20, 2018
    Released: January 18, 2019
    JOURNALS FREE ACCESS

    Primary small cell neuroendocrine carcinoma of the upper urinary tract is a rare disease that is associated with a poor prognosis. An 81-year-old man was diagnosed with carcinoma of the stomach and underwent laparoscopic distal gastrectomy. Computed tomography (CT) revealed carcinoma of the left ureter and left hydronephrosis. The patient was diagnosed with carcinoma of the left ureter (cT2N0M0) and left laparoscopic radical nephroureterectomy was performed via a retroperitoneal approach. The pathological diagnosis was left ureter carcinoma (small cell neuroendocrine carcinoma, pT3). He was treated with four courses of the CE regimen (carboplatin area under the curve: 5, intravenously [IV] on day 1 and etoposide [80 mg/m2], IV on days 1-3). There is no evidence of disease at 21 months after radical nephroureterectomy.

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  • Akito Ito, Ryo Takata, Teppei Matsuo, Toshimoto Kimura, Kouki Otsuka, ...
    2018 Volume 109 Issue 1 Pages 35-39
    Published: January 20, 2018
    Released: January 18, 2019
    JOURNALS FREE ACCESS

    A 45-years-old man presented discharge of abscess from the umbilicus with lower abdominal pain. CT scan showed huge tumor from the bladder to the umbilical part with sigmoid colon invasion. He was diagnosed as urachal carcinoma, which was confirmed by pathological examination. We started FOLFOX chemotherapy according to advanced colon cancer. Approximately 80% of reduction was accomplished after 11 courses of FOLFOX. We performed radical cystectomy with sigmoid colon resection. Pathological examination revealed complete resection with negative surgical margin. No recurrence and metastasis were observed after 30 months of surgery. Urachal carcinoma is often advanced cancer when diagnosed. Effective chemotherapy is not established well. FOLFOX chemotherapy demonstrated the well antitumor effect in this case.

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  • Aya Mori, Yasuhito Funahashi, Satoshi Inoue, Shun Takai, Kazuna Matsuo ...
    2018 Volume 109 Issue 1 Pages 40-44
    Published: January 20, 2018
    Released: January 18, 2019
    JOURNALS FREE ACCESS

    A 61-year-old man had undergone resection of teratoma with a histological component of seminoma occurring in the anterior mediastinum at 26 years of age in 1978, followed by radiation treatment to the resected area. He had a recurrence tumor in the left retroperitoneum 2 years later, which was resected combined with left nephrectomy and was proved to be the same pathology as the initial tumor. At 36 years after the initial treatment, the tumor recurred in the right lung. Although he underwent surgical treatment after chemotherapy, he died due to the tumor recurrence 16 months later.

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  • Michinobu Ozawa, Shinta Suenaga, Tatsuya Ishii, Hitoshi Suzuki, Norihi ...
    2018 Volume 109 Issue 1 Pages 45-49
    Published: January 20, 2018
    Released: January 18, 2019
    JOURNALS FREE ACCESS

    A 72-year-old woman underwent computed tomography (CT) to identify the underlying cause of thrombocytosis. The CT showed a bladder tumor. Urine cytology was negative. Cystoscopic examination showed a dome-shaped bulge at the right lateral wall of the bladder, suggesting a submucosal tumor. The bladder tumor was immediately resected transurethrally. The histological diagnosis was malignant lymphoma of mucosa-associated lymphoid tissue. Positron emission tomography-CT showed no lesions other than the bladder tumor. The patient was diagnosed with primary malignant lymphoma of the bladder.

    The tumor was low-grade, and strict follow-up was subsequently carried out. There was no evidence of recurrence or metastasis at 13 months after treatment.

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  • Ippei Kojima, Yurika Okada, Yu Kono, Yushi Naito, Yasuhiro Terashima, ...
    2018 Volume 109 Issue 1 Pages 50-53
    Published: January 20, 2018
    Released: January 18, 2019
    JOURNALS FREE ACCESS

    A 77-year-old man with a right kidney stone was admitted to our hospital. A ureteroscope was introduced into the ureter without dilation under direct vision. We then performed flexible transurethral lithotripsy (f-TUL) using a ureteral access sheath and successfully fragmented the stone and extracted almost all the stone fragments without any complications. Just 3 hours after the operation, he suddenly developed right abdominal pain with a decrease in hemoglobin. A CT scan showed a retroperitoneal hemorrhage around the lower ureter. We herein describe a rare complication associated with flexible transurethral lithotripsy.

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  • Yoko Koh, Takahiro Imanaka, Go Tsujimura, Takanori Kinjo, Hironori Nom ...
    2018 Volume 109 Issue 1 Pages 54-57
    Published: January 20, 2018
    Released: January 18, 2019
    JOURNALS FREE ACCESS

    We report a case of lithiasis of the left ectopic pelvic kidney. A 70-year-old man was admitted to our department for left lower back pain. He has been aware of gross hematuria since three or four years before. Computed tomography demonstrated the left ectopic pelvic kidney with a 16-mm stone and a 5-mm stone in the renal pelvis which was accompanied by hydronephrosis. Ten days later, the renal pelvic stones moved to the renal calices and the symptoms disappeared. Though a pyeloureteral junction obstruction was not evident, renogram showed a obstruction pattern of the left kidney. He had been followed up for six years, then the stone was impacted in the renal pelvis and hydronephrosis worsened. Open pyelolithotomy was performed. His clinical course was uneventful and no evidence of recurrence has been observed.

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