1.Effect of Acotiamide on Detrusor Underactivity Induced Through Bilateral Pelvic Nerve Crush Injury in Rats
Ei-ichiro TAKAOKA ; Kenji NAGAHAMA ; Jun KAMEI ; Toru SUGIHARA ; Satoshi ANDO ; Tetsuya FUJIMURA ; Naoki YOSHIMURA
International Neurourology Journal 2025;29(1):3-9
Purpose:
To investigate the effectiveness of acotiamide on lower urinary tract dysfunction by using a rat model of neurogenic underactive bladder induced through pelvic nerve crush (PNC) injury.
Methods:
Bilateral PNC injuries were performed on 8-week-old female Sprague-Dawley rats (PNC group); the sham surgery group was used as control (control group). Two weeks after surgery, awake cystometrography (CMG) was performed, and acotiamide (10 or 100 mg/kg) was subcutaneously administered to the control and PNC groups. Subsequently, CMG parameter values obtained before and after treatment were compared.
Results:
In baseline CMG, compared to control group, PNC group revealed statistically significant elevations in the intercontraction intervals (ICIs), number of nonvoiding contractions, baseline pressure, threshold pressure, bladder capacity, voided volumes, and postvoid residual. However, contraction amplitudes and voiding efficiency were significantly decreased. In the control group, compared with the baseline values, 10-mg/kg acotiamide resulted in statistically significant elevations in contraction amplitudes. Treatment with 100-mg/kg acotiamide led to statistically significant elevations in contraction amplitudes and decreases in ICI and bladder volume. In the PNC group, there were no statistically significant changes noted in CMG parameters after treatment with 10-mg/kg acotiamide (n=6). Compared with the baseline values, the administration of 100-mg/kg acotiamide significantly decreased ICI (1,025±186 seconds vs. 578±161 seconds; P=0.012), bladder capacity (1,841±323 µL vs. 871±174 µL, respectively; P=0.0059) and postvoid residual (223±46 µL vs. 44±22 µL, respectively; P=0.023), and increased contraction amplitudes (22.09±1.76 cm H2O vs. 43.84±6.87 cm H2O, respectively; P=0.012) and voiding efficiency (0.87±0.02 vs. 0.94±0.03, respectively; P=0.029).
Conclusions
Acotiamide showed effectiveness in the treatment of underactive bladder, possibly through activation of bladder afferent and detrusor activities.
2.Effect of Acotiamide on Detrusor Underactivity Induced Through Bilateral Pelvic Nerve Crush Injury in Rats
Ei-ichiro TAKAOKA ; Kenji NAGAHAMA ; Jun KAMEI ; Toru SUGIHARA ; Satoshi ANDO ; Tetsuya FUJIMURA ; Naoki YOSHIMURA
International Neurourology Journal 2025;29(1):3-9
Purpose:
To investigate the effectiveness of acotiamide on lower urinary tract dysfunction by using a rat model of neurogenic underactive bladder induced through pelvic nerve crush (PNC) injury.
Methods:
Bilateral PNC injuries were performed on 8-week-old female Sprague-Dawley rats (PNC group); the sham surgery group was used as control (control group). Two weeks after surgery, awake cystometrography (CMG) was performed, and acotiamide (10 or 100 mg/kg) was subcutaneously administered to the control and PNC groups. Subsequently, CMG parameter values obtained before and after treatment were compared.
Results:
In baseline CMG, compared to control group, PNC group revealed statistically significant elevations in the intercontraction intervals (ICIs), number of nonvoiding contractions, baseline pressure, threshold pressure, bladder capacity, voided volumes, and postvoid residual. However, contraction amplitudes and voiding efficiency were significantly decreased. In the control group, compared with the baseline values, 10-mg/kg acotiamide resulted in statistically significant elevations in contraction amplitudes. Treatment with 100-mg/kg acotiamide led to statistically significant elevations in contraction amplitudes and decreases in ICI and bladder volume. In the PNC group, there were no statistically significant changes noted in CMG parameters after treatment with 10-mg/kg acotiamide (n=6). Compared with the baseline values, the administration of 100-mg/kg acotiamide significantly decreased ICI (1,025±186 seconds vs. 578±161 seconds; P=0.012), bladder capacity (1,841±323 µL vs. 871±174 µL, respectively; P=0.0059) and postvoid residual (223±46 µL vs. 44±22 µL, respectively; P=0.023), and increased contraction amplitudes (22.09±1.76 cm H2O vs. 43.84±6.87 cm H2O, respectively; P=0.012) and voiding efficiency (0.87±0.02 vs. 0.94±0.03, respectively; P=0.029).
Conclusions
Acotiamide showed effectiveness in the treatment of underactive bladder, possibly through activation of bladder afferent and detrusor activities.
3.Effect of Acotiamide on Detrusor Underactivity Induced Through Bilateral Pelvic Nerve Crush Injury in Rats
Ei-ichiro TAKAOKA ; Kenji NAGAHAMA ; Jun KAMEI ; Toru SUGIHARA ; Satoshi ANDO ; Tetsuya FUJIMURA ; Naoki YOSHIMURA
International Neurourology Journal 2025;29(1):3-9
Purpose:
To investigate the effectiveness of acotiamide on lower urinary tract dysfunction by using a rat model of neurogenic underactive bladder induced through pelvic nerve crush (PNC) injury.
Methods:
Bilateral PNC injuries were performed on 8-week-old female Sprague-Dawley rats (PNC group); the sham surgery group was used as control (control group). Two weeks after surgery, awake cystometrography (CMG) was performed, and acotiamide (10 or 100 mg/kg) was subcutaneously administered to the control and PNC groups. Subsequently, CMG parameter values obtained before and after treatment were compared.
Results:
In baseline CMG, compared to control group, PNC group revealed statistically significant elevations in the intercontraction intervals (ICIs), number of nonvoiding contractions, baseline pressure, threshold pressure, bladder capacity, voided volumes, and postvoid residual. However, contraction amplitudes and voiding efficiency were significantly decreased. In the control group, compared with the baseline values, 10-mg/kg acotiamide resulted in statistically significant elevations in contraction amplitudes. Treatment with 100-mg/kg acotiamide led to statistically significant elevations in contraction amplitudes and decreases in ICI and bladder volume. In the PNC group, there were no statistically significant changes noted in CMG parameters after treatment with 10-mg/kg acotiamide (n=6). Compared with the baseline values, the administration of 100-mg/kg acotiamide significantly decreased ICI (1,025±186 seconds vs. 578±161 seconds; P=0.012), bladder capacity (1,841±323 µL vs. 871±174 µL, respectively; P=0.0059) and postvoid residual (223±46 µL vs. 44±22 µL, respectively; P=0.023), and increased contraction amplitudes (22.09±1.76 cm H2O vs. 43.84±6.87 cm H2O, respectively; P=0.012) and voiding efficiency (0.87±0.02 vs. 0.94±0.03, respectively; P=0.029).
Conclusions
Acotiamide showed effectiveness in the treatment of underactive bladder, possibly through activation of bladder afferent and detrusor activities.
4.Increased Cooperation with Dentistry by the Palliative Care Team
Hideaki Kawabata ; Masanori Nishikawa ; Hirosato Inoda ; Akio Tanaka ; Naoki Kakihara ; Chiaki Taga ; Mutsumi Kohigashi ; Mitsuo Nakamura ; Chisa Hasegawa ; Eiichiro Kanda ; Masako Nishimura ; Yukari Nakagawa ; Yoko Nishitani ; Mariko Nose ; Kota Asano ; Miwa Sakuma ; Keiko Fujimura
Palliative Care Research 2016;11(1):901-905
Recently, the palliative care team (PCT) at our hospital has included dentists. Among a total of 127 cancer patientsand required PCT intervention from 2009 to 2014, 17 patients (13.3%) had oral symptoms. Therefore, the PCT held discussions in order to determine the optimal way to treat each patient. Various symptoms, including oral pain, dry mouth, taste disturbance, furred tongue, excessive amounts of saliva, appetite loss, and trismus were treated by the dentists. As a result, the oral findings improved in all patients, while the oral symptoms improved in 16 of the 17 patients (94%). Thanks to the fact that dentists have joined the PCT, oral symptoms are effectively relieved, and PCT members now have an increased interest in oral cavity complications. Furthermore, conducting thorough examinations of the oral cavity by the PCT not only results in an improved QOL, but it has also increased the interest in the oral cavity on the part of the PCT. Therefore, more effective palliative care is expected to be achieved by promoting increased cooperation with more clinical departments.
5.Hybrid Repair of Concomitant Descending Thoracic and Abdominal Aortic Aneurysms Using Antegrade Visceral Debranching from the Ascending Aorta
Minami IIO ; Naoki FUJIMURA ; Shuichiro YOSHITAKE ; Satoshi OTSUBO ; Takashi HIROTANI
Japanese Journal of Cardiovascular Surgery 2019;48(2):128-133
A 76-year-old man had increasing thoracic and abdominal aortic aneurysms. First, endovascular repair was performed on the thoracic descending aorta, but type Ib endoleak persisted due to severe aortic calcification. Additional treatment was planned since the maximum diameter of the thoracic and abdominal aortic aneurysms had increased to 75 and 70 mm, respectively. Due to the fact that aortic calcification was present from the aortic arch to the bilateral iliac arteries, which is sometimes referred to as porcelain aorta, conventional open thoracoabdominal aortic repair or hybrid repair using retrograde debranching seemed impossible. Therefore we performed antegrade visceral debranching from the ascending aorta followed by endovascular thoracoabdominal aortic repair successfully. For the thoracoabdominal aortic aneurysms which present difficulty in performing conventional open surgical repair or hybrid repair with retrograde debranching from the iliac artery. This technique can be an effective alternative strategy, but still needs further investigation, including its indications, due to the high surgical stress associated with the procedure.