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318 results on '"Yamamoto, Hayato"'

5. Comparison of efficacy and medical costs between upfront docetaxel and abiraterone treatments of metastatic hormone-sensitive prostate cancer patients in real-world practice: a multicenter retrospective study

Author

Ozaki, Kai, Hatakeyama, Shingo, Narita, Shintaro, Hata, Kenichi, Yanagisawa, Takafumi, Tanaka, Toshikazu, Togashi, Kyo, Hamaya, Tomoko, Okamoto, Teppei, Yamamoto, Hayato, Yoneyama, Takahiro, Hashimoto, Yasuhiro, Kimura, Takahiro, Habuchi, Tomonori, and Ohyama, Chikara

Published
2023
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10. Prognosis of Japanese metastatic renal cell carcinoma patients in the targeted therapy era

Author

Naito, Sei, Kato, Tomoyuki, Numakura, Kazuyuki, Hatakeyama, Shingo, Koguchi, Tomoyuki, Kandori, Shuya, Kawasaki, Yoshihide, Adachi, Hisanobu, Kato, Renpei, Narita, Shintaro, Yamamoto, Hayato, Ogawa, Soichiro, Kawamura, Sadafumi, Obara, Wataru, Ito, Akihiro, Nishiyama, Hiroyuki, Kojima, Yoshiyuki, Ohyama, Chikara, Habuchi, Tomonori, and Tsuchiya, Norihiko

Published
2021
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13. Associations of remaining teeth number, periodontal disease, and occlusal support status with erectile dysfunction in community‐dwelling men.

Author

Fujita, Naoki, Iwane, Takuro, Tamura, Yoshihiro, Okamoto, Teppei, Yamamoto, Hayato, Hatakeyama, Shingo, Yoneyama, Takahiro, Hashimoto, Yasuhiro, Kobayashi, Wataru, and Ohyama, Chikara

Subjects
DENTAL pathology, PERIODONTAL disease, IMPOTENCE, ODDS ratio, TEETH
Abstract

Objectives: Several systematic reviews and meta‐analyses have reported positive relationships between erectile dysfunction (ED) and periodontal disease. However, no study has evaluated the relationships of occlusal support status and the number of remaining teeth with ED. The aim of the present study was to investigate the relationships between ED and the remaining teeth number, periodontal disease, and occlusal support status. Methods: This study included 400 community‐dwelling men. Periodontal health status and occlusal support condition were evaluated using the Community Periodontal Index (CPI) and Eichner classification. Multivariable analyses were performed to evaluate the relationships between ED and the remaining teeth number, periodontal disease, and occlusal support status. Results: The median age was 53 years. Of the 400 men, 333 (83%) were classified into ED group. In univariable analyses, remaining teeth number, CPI score, and Eichner classification were significantly associated with ED. In multivariable analyses, the remaining teeth number (odds ratio [OR]: 0.907, p = 0.114) and CPI score (OR: 0.978, p = 0.864) were not significantly associated with ED, whereas the Eichner classification was independently and significantly associated with ED (OR: 3.490, p = 0.042). Conclusions: Poor occlusal support status was significantly associated with ED in community‐dwelling men, as opposed to remaining teeth number and periodontal health status. [ABSTRACT FROM AUTHOR]

Published
2024
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29. Neoadjuvant chemohormonal therapy followed by robot-assisted and minimum incision endoscopic radical prostatectomy in patients with high-risk prostate cancer: comparison of perioperative and oncological outcomes at single institution

Author

Fujita, Naoki, Koie, Takuya, Hashimoto, Yasuhiro, Narita, Takuma, Tobisawa, Yuki, Tanaka, Toshikazu, Noro, Daisuke, Oikawa, Masaaki, Hagiwara, Kazuhisa, Yoneyama, Tohru, Imai, Atsushi, Yamamoto, Hayato, Hatakeyama, Shingo, Yoneyama, Takahiro, and Ohyama, Chikara

Published
2018
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34. Multicenter prospective study validating the efficacy of a quantitative assessment tool for frailty in patients with urological cancers

Author

Soma, Osamu, Hatakeyama, Shingo, Okamoto, Teppei, Fujita, Naoki, Hamano, Itsuto, Tanaka, Toshikazu, Momota, Masaki, Yoneyama, Tohru, Yamamoto, Hayato, Imai, Atsushi, Yoneyama, Takahiro, Hashimoto, Yasuhiro, Yoshikawa, Kazuaki, Kawaguchi, Toshiaki, Saitoh, Hisao, Nakaji, Shigeyuki, Suzuki, Tadashi, and Ohyama, Chikara

Published
2019
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37. Detecting asymptomatic recurrence after radical cystectomy contributes to better prognosis in patients with muscle-invasive bladder cancer

Author

Kusaka, Ayumu, Hatakeyama, Shingo, Hosogoe, Shogo, Hamano, Itsuto, Iwamura, Hiromichi, Fujita, Naoki, Fukushi, Ken, Narita, Takuma, Yamamoto, Hayato, Tobisawa, Yuki, Yoneyama, Tohru, Yoneyama, Takahiro, Hashimoto, Yasuhiro, Koie, Takuya, Ito, Hiroyuki, Yoshikawa, Kazuaki, Kawaguchi, Toshiaki, and Ohyama, Chikara

Published
2017
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40. The impact of extended lymph node dissection versus neoadjuvant therapy with limited lymph node dissection on biochemical recurrence in high-risk prostate cancer patients treated with radical prostatectomy: a multi-institutional analysis

Author

Narita, Takuma, Koie, Takuya, Ookubo, Teppei, Mitsuzuka, Koji, Narita, Shintaro, Yamamoto, Hayato, Inoue, Takamitsu, Hatakeyama, Shingo, Kawamura, Sadafumi, Tochigi, Tatsuo, Habuchi, Tomonori, Arai, Yoichi, and Ohyama, Chikara

Published
2017
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43. Impact of nephroureterectomy on postoperative renal function in upper tract urothelial carcinoma: A multicenter retrospective study.

Author

Okuyama, Yoshiharu, Hatakeyama, Shingo, Tabata, Ryuji, Fujimori, Daiji, Kawashima, Yohei, Tanaka, Toshikazu, Fujita, Naoki, Okamoto, Teppei, Mori, Kazuyuki, Yamamoto, Hayato, Yoneyama, Takahiro, Hashimoto, Yasuhiro, Matsuoka, Toshimitsu, Sato, Satoshi, and Ohyama, Chikara

Subjects
TRANSITIONAL cell carcinoma, KIDNEY physiology, GLOMERULAR filtration rate, EPIDERMAL growth factor receptors, NEPHRECTOMY, NEPHROSTOMY
Abstract

Objective: To assess the impact of radical nephroureterectomy on postoperative renal function in patients with upper tract urothelial carcinoma (UTUC). Methods: We retrospectively evaluated 645 patients with UTUC treated with radical nephroureterectomy between January 2000 and May 2022. The primary outcome was the rate of postoperative estimated glomerular filtration rate (eGFR) ≥60 mL/min/1.73 m2. Secondary outcomes included the rate of eGFR decline, identification of factors related to eGFR decline, and the impact of comorbidities (diabetes or cardiovascular disease) on postoperative eGFR at 1 year. Results: The median preoperative and postoperative eGFR levels were 55.6 and 43.3 mL/min/1.73 m2, respectively. The rate of patients with preoperative and postoperative eGFR ≥60 mL/min/1.73 m2 was 40.9% and 9.0%, respectively. The median decline in eGFR after surgery was 25.1%. The presence of preoperative unilateral hydronephrosis and eGFR <60 mL/min/1.73 m2 was significantly associated with a low decline of postoperative eGFR and poor survival. The impact of the presence of comorbidities on postoperative eGFR at 1 year was significant (p < 0.001). Conclusion: Impaired renal function is prevalent in patients with UTUC. The rate of patients with postoperative eGFR ≥60 mL/min/1.73 m2 was 9.0%. The presence of preoperative renal impairment was significantly related to a low decline in postoperative eGFR and poor survival. The presence of comorbidities had a significant effect on eGFR decline 1 year after radical nephroureterectomy. [ABSTRACT FROM AUTHOR]

Published
2023
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44. Relationship between lower urinary tract symptoms and frailty.

Author

Ozaki, Yusuke, Hatakeyama, Shingo, Imai, Atsushi, Songee, Jung, Soma, Osamu, Ozaki, Kai, Fujita, Naoki, Okamoto, Teppei, Iwamura, Hiromichi, Yamamoto, Hayato, Yoneyama, Takahiro, Hashimoto, Yasuhiro, and Ohyama, Chikara

Subjects
URINARY organs, FRAILTY, MULTIPLE regression analysis, OVERACTIVE bladder
Abstract

Objective: To elucidate the relationship between frailty and lower urinary tract symptoms (LUTS). Methods: We longitudinally evaluated the temporal changes and the relationships between frailty and LUTS in 247 community‐dwelling adults (45 years or older) at baseline and at a 5‐year follow‐up. We used the Fried phenotype (phenotype‐based frailty), 5‐item modified frailty index (5i‐mFI; comorbidity‐based frailty), and frailty discriminant score (comprehensive frailty assessment) to evaluate frailty. LUTS were evaluated using the international prostate symptom score (IPSS) and overactive bladder symptom score (OABSS). Results: We analyzed 247 participants with a median age of 60 years. The median IPSS and OABSS were significantly increased over the 5 years. The proportion of frail individuals did not increase significantly over the 5 years. Of the three frailty assessment tools, the 5i‐mFI score significantly increased between 2014 and 2019. Multiple linear regression analyses showed that the 5i‐mFI score was significantly associated with the severity of LUTS in 2014 to 5i‐mFI in 2019 but not with 5i‐mFI in 2014 to the severity of LUTS in 2019. Conclusion: The effect of LUTS on frailty might be greater than the effect of frailty on LUTS. Further large‐scale studies are needed to elucidate the relationship between LUTS and frailty. [ABSTRACT FROM AUTHOR]

Published
2023
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45. Trends in the age of hospitalized patients with urological cancers: A 17‐year experience.

Author

Ishii, Noritaka, Hatakeyama, Shingo, Miura, Hikari, Tanaka, Ryuma, Oishi, Takuya, Horiguchi, Hirotaka, Hosogoe, Shogo, Fujita, Naoki, Iwamura, Hiromichi, Okamoto, Teppei, Yamamoto, Hayato, Yoneyama, Takahiro, Hashimoto, Yasuhiro, and Ohyama, Chikara

Subjects
CANCER patients, HOSPITAL patients, RENAL cell carcinoma, TRANSITIONAL cell carcinoma, URINARY organ diseases, PROSTATE cancer
Abstract

Objectives: To investigate the impact of global aging on the trends in the age of hospitalized patients with a urological cancer diagnosis. Methods: We retrospectively evaluated a cumulative total of 10 652 cases of referred patients (n = 6637) with a urological disease who were hospitalized in our institution between January 2005 and December 2021. We compared age and the proportion of patients aged ≥80 years among patients who were hospitalized in the urological ward between the period of 2005–2013 and that of 2014–2021. Results: We identified 8168 hospitalized patients with urological cancer. The median age was significantly increased in patients with urological cancer between the periods of 2005–2013 and 2014–2021. The proportion of hospitalized patients with urological cancer aged ≥80 years was significantly increased between the periods of 2005–2013 (9.3%) and 2014–2021 (13.8%). The median ages of the patients with urothelial cancer (UC) and renal cell carcinoma (RCC), but not the median age of those with prostate cancer (PC), were significantly increased between the study periods. The proportion of hospitalized patients with UC, but not the proportions of those with PC and RCC, aged ≥80 years was significantly increased between the study periods. Conclusions: The age of patients with urological cancer who were hospitalized in the urological ward and the proportion of patients with UC aged ≥80 years significantly increased over the entire study period. [ABSTRACT FROM AUTHOR]

Published
2023
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