1.Safety and efficacy of trans-afferent loop endoscopic ultrasound-guided pancreaticojejunostomy for post pancreaticoduodenectomy anastomotic stricture using the forward-viewing echoendoscope: a retrospective study from Japan
Ahmed SADEK ; Kazuo HARA ; Nozomi OKUNO ; Shin HABA ; Takamichi KUWAHARA ; Toshitaka FUKUI ; Minako URATA ; Takashi KONDO ; Yoshitaro YAMAMOTO ; Kenneth TACHI
Clinical Endoscopy 2025;58(2):311-319
Background/Aims:
Endoscopic ultrasound (EUS)-guided pancreatic duct drainage is a well-established procedure for managing pancreaticojejunostomy anastomotic strictures (PJAS) post-Whipple surgery. In this study, we examined the effectiveness and safety of EUS-guided pancreaticojejunostomy (EUS-PJS).
Methods:
This retrospective, single-arm study was performed at Aichi Cancer Center Hospital on 10 patients who underwent EUS-guided pancreaticojejunostomy through the afferent jejunal loop using a forward-viewing echoendoscope when endoscopic retrograde pancreatography failed. Our primary endpoint was technical success rate, defined as successful stent insertion. The secondary endpoints were early and late adverse events.
Results:
A total of 10 patients underwent EUS-PJS between February 2019 and October 2023. The technical success rate was 100%. The median procedure time was 23.5 minutes. No remarkable early or late adverse events related to the procedure, except for fever, occurred in two patients. The median follow-up duration was 9.5 months, and the median number of stent exchanges was two. A stent-free state was achieved in three patients.
Conclusions
EUS-PJS for PJAS management after pancreaticoduodenectomy appears to be an effective and safe procedure with the potential advantages of fewer reinterventions and the creation of a permanent drainage fistula.
2.Efficacy and safety of endoscopic ultrasound-guided hepaticogastrostomy for biliary drainage in hypervascular hepatocellular carcinoma: a retrospective study from Japan
Kenneth TACHI ; Kazuo HARA ; Nozomi OKUNO ; Shin HABA ; Takamichi KUWAHARA ; Toshitaka FUKUI ; Ahmed Mohammed SADEK ; Hossam El-Din Shaaban Mahmoud IBRAHIM ; Minako URATA ; Takashi KONDO ; Yoshitaro YAMAMOTO
Clinical Endoscopy 2025;58(3):448-456
Background/Aims:
Biliary obstruction drainage in patients with hepatocellular carcinoma (HCC) is associated with symptom palliation, improved access to chemotherapy, and improved survival. Stent placement and exchange via endoscopic retrograde cholangiopancreatography biliary drainage risk traversing the HCC, a hypervascular tumor and causing bleeding. Endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) potentially prevents procedure-related bleeding. Therefore, we evaluated the efficacy and safety of EUS-HGS as an alternative treatment for biliary obstruction in patients with HCC.
Methods:
This was a retrospective study of all EUS-HGS procedures performed in patients with HCC at the Aichi Cancer Center Hospital, Japan, from February 2017 to August 2023.
Results:
A total of 14 EUS-HGS procedures (42.9% primary) were attempted in 10 HCC patients (mean age 71.5 years, 80.0% male). Clinical and technical success rates were 92.9% and 90.9%, respectively. The observed procedure details in the 13 successful procedures included B3 puncture (53.8%), 22-G needle (53.8%), fully covered self-expandable metal stent (100%), and mean procedure time (32.7 minutes). There was no bleeding. Mild complications occurred in 27.3%. All patients resumed oral intake within 24 hours.
Conclusions
EUS-HGS is a technically feasible and clinically effective initial or salvage drainage option for the treatment of biliary obstruction in patients with HCC.
3.Safety and efficacy of trans-afferent loop endoscopic ultrasound-guided pancreaticojejunostomy for post pancreaticoduodenectomy anastomotic stricture using the forward-viewing echoendoscope: a retrospective study from Japan
Ahmed SADEK ; Kazuo HARA ; Nozomi OKUNO ; Shin HABA ; Takamichi KUWAHARA ; Toshitaka FUKUI ; Minako URATA ; Takashi KONDO ; Yoshitaro YAMAMOTO ; Kenneth TACHI
Clinical Endoscopy 2025;58(2):311-319
Background/Aims:
Endoscopic ultrasound (EUS)-guided pancreatic duct drainage is a well-established procedure for managing pancreaticojejunostomy anastomotic strictures (PJAS) post-Whipple surgery. In this study, we examined the effectiveness and safety of EUS-guided pancreaticojejunostomy (EUS-PJS).
Methods:
This retrospective, single-arm study was performed at Aichi Cancer Center Hospital on 10 patients who underwent EUS-guided pancreaticojejunostomy through the afferent jejunal loop using a forward-viewing echoendoscope when endoscopic retrograde pancreatography failed. Our primary endpoint was technical success rate, defined as successful stent insertion. The secondary endpoints were early and late adverse events.
Results:
A total of 10 patients underwent EUS-PJS between February 2019 and October 2023. The technical success rate was 100%. The median procedure time was 23.5 minutes. No remarkable early or late adverse events related to the procedure, except for fever, occurred in two patients. The median follow-up duration was 9.5 months, and the median number of stent exchanges was two. A stent-free state was achieved in three patients.
Conclusions
EUS-PJS for PJAS management after pancreaticoduodenectomy appears to be an effective and safe procedure with the potential advantages of fewer reinterventions and the creation of a permanent drainage fistula.
4.Efficacy and safety of endoscopic ultrasound-guided hepaticogastrostomy for biliary drainage in hypervascular hepatocellular carcinoma: a retrospective study from Japan
Kenneth TACHI ; Kazuo HARA ; Nozomi OKUNO ; Shin HABA ; Takamichi KUWAHARA ; Toshitaka FUKUI ; Ahmed Mohammed SADEK ; Hossam El-Din Shaaban Mahmoud IBRAHIM ; Minako URATA ; Takashi KONDO ; Yoshitaro YAMAMOTO
Clinical Endoscopy 2025;58(3):448-456
Background/Aims:
Biliary obstruction drainage in patients with hepatocellular carcinoma (HCC) is associated with symptom palliation, improved access to chemotherapy, and improved survival. Stent placement and exchange via endoscopic retrograde cholangiopancreatography biliary drainage risk traversing the HCC, a hypervascular tumor and causing bleeding. Endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) potentially prevents procedure-related bleeding. Therefore, we evaluated the efficacy and safety of EUS-HGS as an alternative treatment for biliary obstruction in patients with HCC.
Methods:
This was a retrospective study of all EUS-HGS procedures performed in patients with HCC at the Aichi Cancer Center Hospital, Japan, from February 2017 to August 2023.
Results:
A total of 14 EUS-HGS procedures (42.9% primary) were attempted in 10 HCC patients (mean age 71.5 years, 80.0% male). Clinical and technical success rates were 92.9% and 90.9%, respectively. The observed procedure details in the 13 successful procedures included B3 puncture (53.8%), 22-G needle (53.8%), fully covered self-expandable metal stent (100%), and mean procedure time (32.7 minutes). There was no bleeding. Mild complications occurred in 27.3%. All patients resumed oral intake within 24 hours.
Conclusions
EUS-HGS is a technically feasible and clinically effective initial or salvage drainage option for the treatment of biliary obstruction in patients with HCC.
5.Safety and efficacy of trans-afferent loop endoscopic ultrasound-guided pancreaticojejunostomy for post pancreaticoduodenectomy anastomotic stricture using the forward-viewing echoendoscope: a retrospective study from Japan
Ahmed SADEK ; Kazuo HARA ; Nozomi OKUNO ; Shin HABA ; Takamichi KUWAHARA ; Toshitaka FUKUI ; Minako URATA ; Takashi KONDO ; Yoshitaro YAMAMOTO ; Kenneth TACHI
Clinical Endoscopy 2025;58(2):311-319
Background/Aims:
Endoscopic ultrasound (EUS)-guided pancreatic duct drainage is a well-established procedure for managing pancreaticojejunostomy anastomotic strictures (PJAS) post-Whipple surgery. In this study, we examined the effectiveness and safety of EUS-guided pancreaticojejunostomy (EUS-PJS).
Methods:
This retrospective, single-arm study was performed at Aichi Cancer Center Hospital on 10 patients who underwent EUS-guided pancreaticojejunostomy through the afferent jejunal loop using a forward-viewing echoendoscope when endoscopic retrograde pancreatography failed. Our primary endpoint was technical success rate, defined as successful stent insertion. The secondary endpoints were early and late adverse events.
Results:
A total of 10 patients underwent EUS-PJS between February 2019 and October 2023. The technical success rate was 100%. The median procedure time was 23.5 minutes. No remarkable early or late adverse events related to the procedure, except for fever, occurred in two patients. The median follow-up duration was 9.5 months, and the median number of stent exchanges was two. A stent-free state was achieved in three patients.
Conclusions
EUS-PJS for PJAS management after pancreaticoduodenectomy appears to be an effective and safe procedure with the potential advantages of fewer reinterventions and the creation of a permanent drainage fistula.
6.Efficacy and safety of endoscopic ultrasound-guided hepaticogastrostomy for biliary drainage in hypervascular hepatocellular carcinoma: a retrospective study from Japan
Kenneth TACHI ; Kazuo HARA ; Nozomi OKUNO ; Shin HABA ; Takamichi KUWAHARA ; Toshitaka FUKUI ; Ahmed Mohammed SADEK ; Hossam El-Din Shaaban Mahmoud IBRAHIM ; Minako URATA ; Takashi KONDO ; Yoshitaro YAMAMOTO
Clinical Endoscopy 2025;58(3):448-456
Background/Aims:
Biliary obstruction drainage in patients with hepatocellular carcinoma (HCC) is associated with symptom palliation, improved access to chemotherapy, and improved survival. Stent placement and exchange via endoscopic retrograde cholangiopancreatography biliary drainage risk traversing the HCC, a hypervascular tumor and causing bleeding. Endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) potentially prevents procedure-related bleeding. Therefore, we evaluated the efficacy and safety of EUS-HGS as an alternative treatment for biliary obstruction in patients with HCC.
Methods:
This was a retrospective study of all EUS-HGS procedures performed in patients with HCC at the Aichi Cancer Center Hospital, Japan, from February 2017 to August 2023.
Results:
A total of 14 EUS-HGS procedures (42.9% primary) were attempted in 10 HCC patients (mean age 71.5 years, 80.0% male). Clinical and technical success rates were 92.9% and 90.9%, respectively. The observed procedure details in the 13 successful procedures included B3 puncture (53.8%), 22-G needle (53.8%), fully covered self-expandable metal stent (100%), and mean procedure time (32.7 minutes). There was no bleeding. Mild complications occurred in 27.3%. All patients resumed oral intake within 24 hours.
Conclusions
EUS-HGS is a technically feasible and clinically effective initial or salvage drainage option for the treatment of biliary obstruction in patients with HCC.
7.Safety and efficacy of endoscopic ultrasound-guided pancreatic duct drainage using a drill dilator: a retrospective study in Japan
Ahmed SADEK ; Kazuo HARA ; Nozomi OKUNO ; Shin HABA ; Takamichi KUWAHARA ; Toshitaka FUKUI ; Minako URATA ; Takashi KONDO ; Yoshitaro YAMAMOTO ; Kenneth TACHI
Clinical Endoscopy 2024;57(5):666-674
Background/Aims:
Dilation of the tract before stent deployment is a challenging step in endoscopic ultrasound-guided pancreatic duct drainage (EUS-PDD). In this study, we examined the effectiveness and safety of a novel spiral dilator, Tornus ES (Asahi Intec), for EUS-PDD.
Methods:
This was a retrospective, single-arm, observational study at Aichi Cancer Center Hospital. The punctured tract was dilated using a Tornus ES dilator in all EUS-PDD cases. Our primary endpoint was the technical success rate of initial tract dilation. Technical success was defined as successful fistula dilation using a Tornus ES followed by successful stent insertion. Secondary endpoints were procedure times and early adverse events.
Results:
A total of 12 patients were included between December 2021 and March 2023. EUS-PDD was performed in 11 patients for post-pancreaticoduodenectomy anastomotic strictures and one patient with pancreatitis with duodenal perforation. The technical success rates of stent insertion and fistula dilation using a Tornus ES dilator was 100%. The median procedure time was 24 minutes. No remarkable adverse events related to the procedure were observed, apart from fever, which occurred in 2 patients.
Conclusions
Tract dilation in EUS-PDD using a Tornus ES is effective and safe.
8.Cross-sectional survey of depressive symptoms and suicide-related ideation at a Japanese national university during the COVID-19 stay-home order.
Kyoko NOMURA ; Sachiko MINAMIZONO ; Eri MAEDA ; Roseline KIM ; Toyoto IWATA ; Junko HIRAYAMA ; Kyoichi ONO ; Masahito FUSHIMI ; Takeshi GOTO ; Kazuo MISHIMA ; Fumio YAMAMOTO
Environmental Health and Preventive Medicine 2021;26(1):30-30
BACKGROUND:
We aimed to estimate the prevalence of depressive symptoms as well as suicide-related ideation among Japanese university students during the stay-home order necessitated by the coronavirus disease 2019 pandemic in Japan, and offer evidence in support of future intervention to depression and suicide prevention strategies among college and university students.
METHODS:
The data for this cross-sectional study were derived from the Student Mental Health Survey conducted from May 20 to June 16, 2020 at a national university in Akita prefecture. Among the 5111 students recruited, 2712 participated in this study (response rate, 53%; mean age ± standard deviation, 20.5 ±3.5 years; men, 53.8%). Depressive symptoms were identified by using the Patient Health Questionnaire-9 (PHQ-9).
RESULTS:
The prevalence of moderate depressive symptoms based on a PHQ-9 score ≥10 and suicide-related ideation based on question 9 of PHQ-9 ≥1, which encompasses thoughts of both suicide and self-harm, was 11.7% and 6.7%, respectively. Multivariable logistic regression analyses showed that risk factors for depression included being a woman, smoking, alcohol consumption, and social network communication using either video or voice. For suicide-related ideation, alcohol consumption was the only risk factor. Exercise and having someone to consult about worries were associated with decreased risk of both depressive symptoms and suicide-related ideation.
CONCLUSIONS
Negative lifestyles of smoking and drinking, and being a woman, may be important risk factors for depressive symptoms, whereas exercise and having someone to consult about worries may be protective factors.
Adolescent
;
Alcohol Drinking
;
COVID-19/psychology*
;
Cross-Sectional Studies
;
Depression/epidemiology*
;
Female
;
Humans
;
Japan/epidemiology*
;
Logistic Models
;
Male
;
Multivariate Analysis
;
Pandemics
;
Risk Factors
;
Smoking
;
Students/psychology*
;
Suicidal Ideation
;
Surveys and Questionnaires
;
Young Adult
9.Unilateral rostral mandibulectomy for gingival vascular hamartoma in two calves
Takeshi TSUKA ; Yoshiharu OKAMOTO ; Naoki YAMAMOTO ; Keiji HAYASHI ; Takehito MORITA ; Yuji SUNDEN ; Yusuke MURAHATA ; Kazuo AZUMA ; Tomohiro OSAKI ; Norihiko ITO ; Tomohiro IMAGAWA
Journal of Veterinary Science 2018;19(4):582-584
A 2-month-old female Holstein calf and a 5-month-old female Japanese black calf presented with gingival vascular hamartoma located in the interdental space between the second and third mandibular incisors in the right and left mandibles, respectively. On radiographic or computed tomographic images, osteolytic changes appeared within the mandibular bones adjacent to the masses. The masses were removed along with affected mandibular bone by using unilateral rostral mandibulectomy. After surgery, both cases exhibited a normal appetite and grew normally, with no cosmetic changes or recurrences. Unilateral rostral mandibulectomy can be applied for invasive gingival vascular hamartomas associated with osteolytic changes.
Animals
;
Appetite
;
Asian Continental Ancestry Group
;
Cattle
;
Female
;
Hamartoma
;
Humans
;
Incisor
;
Infant
;
Mandible
;
Mandibular Osteotomy
;
Radiography
;
Recurrence
10.Levetiracetam-induced rhabdomyolysis: A case report and literature review
Kazuo Kubota ; Takahiro Yamamoto ; Minako Kawamoto ; Norio Kawamoto ; Toshiyuki Fukao
Neurology Asia 2017;22(3):275-278
Levetiracetam (LEV), a relatively new antiepileptic drug, is now frequently used for treating partial or
generalized seizures. Among the adverse effects of LEV, rhabdomyolysis is rare. We describe here a case
of LEV-induced rhabdomyolysis in a 26-year-old woman. The patient’s seizures had been controlled
with carbamazepine and phenobarbital for the previous 7 years. However, LEV was initiated at the age
of 26 years because her seizures control deteriorated with seizures occurring monthly. She experienced
lower limb weakness with a high level of creatine kinase 15 days after starting LEV. When LEV was
discontinued, her creatine kinase levels decreased and her symptoms gradually improved. This case
provide another example of rhabdomyolysis during the early phase of LEV treatment.
Rhabdomyolysis

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