1.Efficacy and Safety of a Novel Tapered-Tip Sheath System for Biliary-Lesion Tissue Sampling: A Randomized Controlled Trial
Hirokazu OKADA ; Norimitsu UZA ; Tomoaki MATSUMORI ; Hajime YAMAZAKI ; Muneji YASUDA ; Takeshi KUWADA ; Yoshihiro NISHIKAWA ; Takahisa MARUNO ; Masahiro SHIOKAWA ; Atsushi TAKAI ; Ken TAKAHASHI ; Akihisa FUKUDA ; Etsuro HATANO ; Sachiko MINAMIGUCHI ; Hiroshi SENO
Gut and Liver 2025;19(1):136-144
Background/Aims:
Pathological evaluation is crucial for diagnosing biliary lesions and determining appropriate treatment strategies. However, tissue sampling via the transpapillary route can be difficult. In this study, we aimed to assess the efficacy and safety of a novel tapered-tip sheath system for tissue sampling from biliary strictures.
Methods:
This single-center, randomized, parallel-group clinical trial included patients aged 20 to 85 years admitted to Kyoto University Hospital for biliary strictures. The patients were randomly assigned (1:1) to a new or conventional method group. The primary outcome was technical success of biopsy at the target bile duct using the assigned method, as determined in accordance with the intention-to-treat principle. Adverse events were assessed in all eligible patients.
Results:
Fifty-six patients were assessed for eligibility between September 2020 and March 2023; 50 patients were enrolled. The patients were randomly divided into the new (n=25) method group and the conventional (n=25) method group. Technical success was achieved in 96.0% (24/25) and 48.0% (12/25) of patients in the new and conventional method groups, respectively (risk ratio, 2.00; 95% confidence interval [CI], 1.32 to 3.03; risk difference, 48.0%; 95% CI, 27.0% to 69.0%; p<0.001). Adverse events occurred in 4.0% (1/25) and 36.0% (9/25) of patients in the new and conventional method groups, respectively (risk ratio, 0.11; 95% CI, 0.02 to 0.81; risk difference, –32.0%; 95% CI, –52.3% to –11.7%; p=0.005).
Conclusions
The novel tapered-tip sheath system is a promising option for precisely and safely delivering biopsy forceps to target sites, thereby facilitating the diagnosis of biliary strictures.
2.A Case of a Peritoneal Dialysis Patient Who Underwent OPCAB for Acute Coronary Syndromes after Debranching TEVAR
Kazuki TAMURA ; Yasuyuki YAMADA ; Masahiko EZURE ; Yutaka HASEGAWA ; Joji HOSHINO ; Shuichi OKADA ; Yoshifumi ITODA ; Hiroyuki MORISHITA ; Masahiro SEKI ; Takashi SODA
Japanese Journal of Cardiovascular Surgery 2025;54(2):49-52
An 82-year-old male patient who had a history of ischemic heart disease (IHD) and Debranching Thoracic Endovascular Aortic Repair (TEVAR) (right axillary artery-left axillary artery-left common carotid artery) was admitted to our hospital due to sudden chest pain. The diagnosis revealed acute coronary syndrome: 2-vessel lesions, including the left main trunk (LMT) (right coronary artery (RCA) #2 75%, #3 90%, LMT #5 50%, and left anterior descending (LAD) branch #7 75%). Plain Old Balloon Angioplasty (POBA) was performed on the responsible lesion, RCA (#2-3). Off-pump Coronary Artery Bypass Grafting (OPCAB) was initially planned for the remaining lesion. However, cardiogenic shock occurred, and an emergency OPCAB (SVG-LAD, SVG-#4PD) was performed via partial sternotomy (inverted L-shaped incision on the left side), using intra-aortic balloon pumping (IABP). The patient underwent revascularization using great saphenous vein grafts due to the potential for postoperative pleuroperitoneal communication in patients undergoing peritoneal dialysis, as well as the risk of impaired internal thoracic artery (ITA) flow caused by debranching in future involving internal shunts for dialysis. It is important to consider not only the graft but also the thoracotomy, taking into account the perspectives of early weaning and the prevention of perioperative complications.
3.Efficacy and Safety of a Novel Tapered-Tip Sheath System for Biliary-Lesion Tissue Sampling: A Randomized Controlled Trial
Hirokazu OKADA ; Norimitsu UZA ; Tomoaki MATSUMORI ; Hajime YAMAZAKI ; Muneji YASUDA ; Takeshi KUWADA ; Yoshihiro NISHIKAWA ; Takahisa MARUNO ; Masahiro SHIOKAWA ; Atsushi TAKAI ; Ken TAKAHASHI ; Akihisa FUKUDA ; Etsuro HATANO ; Sachiko MINAMIGUCHI ; Hiroshi SENO
Gut and Liver 2025;19(1):136-144
Background/Aims:
Pathological evaluation is crucial for diagnosing biliary lesions and determining appropriate treatment strategies. However, tissue sampling via the transpapillary route can be difficult. In this study, we aimed to assess the efficacy and safety of a novel tapered-tip sheath system for tissue sampling from biliary strictures.
Methods:
This single-center, randomized, parallel-group clinical trial included patients aged 20 to 85 years admitted to Kyoto University Hospital for biliary strictures. The patients were randomly assigned (1:1) to a new or conventional method group. The primary outcome was technical success of biopsy at the target bile duct using the assigned method, as determined in accordance with the intention-to-treat principle. Adverse events were assessed in all eligible patients.
Results:
Fifty-six patients were assessed for eligibility between September 2020 and March 2023; 50 patients were enrolled. The patients were randomly divided into the new (n=25) method group and the conventional (n=25) method group. Technical success was achieved in 96.0% (24/25) and 48.0% (12/25) of patients in the new and conventional method groups, respectively (risk ratio, 2.00; 95% confidence interval [CI], 1.32 to 3.03; risk difference, 48.0%; 95% CI, 27.0% to 69.0%; p<0.001). Adverse events occurred in 4.0% (1/25) and 36.0% (9/25) of patients in the new and conventional method groups, respectively (risk ratio, 0.11; 95% CI, 0.02 to 0.81; risk difference, –32.0%; 95% CI, –52.3% to –11.7%; p=0.005).
Conclusions
The novel tapered-tip sheath system is a promising option for precisely and safely delivering biopsy forceps to target sites, thereby facilitating the diagnosis of biliary strictures.
4.Efficacy and Safety of a Novel Tapered-Tip Sheath System for Biliary-Lesion Tissue Sampling: A Randomized Controlled Trial
Hirokazu OKADA ; Norimitsu UZA ; Tomoaki MATSUMORI ; Hajime YAMAZAKI ; Muneji YASUDA ; Takeshi KUWADA ; Yoshihiro NISHIKAWA ; Takahisa MARUNO ; Masahiro SHIOKAWA ; Atsushi TAKAI ; Ken TAKAHASHI ; Akihisa FUKUDA ; Etsuro HATANO ; Sachiko MINAMIGUCHI ; Hiroshi SENO
Gut and Liver 2025;19(1):136-144
Background/Aims:
Pathological evaluation is crucial for diagnosing biliary lesions and determining appropriate treatment strategies. However, tissue sampling via the transpapillary route can be difficult. In this study, we aimed to assess the efficacy and safety of a novel tapered-tip sheath system for tissue sampling from biliary strictures.
Methods:
This single-center, randomized, parallel-group clinical trial included patients aged 20 to 85 years admitted to Kyoto University Hospital for biliary strictures. The patients were randomly assigned (1:1) to a new or conventional method group. The primary outcome was technical success of biopsy at the target bile duct using the assigned method, as determined in accordance with the intention-to-treat principle. Adverse events were assessed in all eligible patients.
Results:
Fifty-six patients were assessed for eligibility between September 2020 and March 2023; 50 patients were enrolled. The patients were randomly divided into the new (n=25) method group and the conventional (n=25) method group. Technical success was achieved in 96.0% (24/25) and 48.0% (12/25) of patients in the new and conventional method groups, respectively (risk ratio, 2.00; 95% confidence interval [CI], 1.32 to 3.03; risk difference, 48.0%; 95% CI, 27.0% to 69.0%; p<0.001). Adverse events occurred in 4.0% (1/25) and 36.0% (9/25) of patients in the new and conventional method groups, respectively (risk ratio, 0.11; 95% CI, 0.02 to 0.81; risk difference, –32.0%; 95% CI, –52.3% to –11.7%; p=0.005).
Conclusions
The novel tapered-tip sheath system is a promising option for precisely and safely delivering biopsy forceps to target sites, thereby facilitating the diagnosis of biliary strictures.
5.Efficacy and Safety of a Novel Tapered-Tip Sheath System for Biliary-Lesion Tissue Sampling: A Randomized Controlled Trial
Hirokazu OKADA ; Norimitsu UZA ; Tomoaki MATSUMORI ; Hajime YAMAZAKI ; Muneji YASUDA ; Takeshi KUWADA ; Yoshihiro NISHIKAWA ; Takahisa MARUNO ; Masahiro SHIOKAWA ; Atsushi TAKAI ; Ken TAKAHASHI ; Akihisa FUKUDA ; Etsuro HATANO ; Sachiko MINAMIGUCHI ; Hiroshi SENO
Gut and Liver 2025;19(1):136-144
Background/Aims:
Pathological evaluation is crucial for diagnosing biliary lesions and determining appropriate treatment strategies. However, tissue sampling via the transpapillary route can be difficult. In this study, we aimed to assess the efficacy and safety of a novel tapered-tip sheath system for tissue sampling from biliary strictures.
Methods:
This single-center, randomized, parallel-group clinical trial included patients aged 20 to 85 years admitted to Kyoto University Hospital for biliary strictures. The patients were randomly assigned (1:1) to a new or conventional method group. The primary outcome was technical success of biopsy at the target bile duct using the assigned method, as determined in accordance with the intention-to-treat principle. Adverse events were assessed in all eligible patients.
Results:
Fifty-six patients were assessed for eligibility between September 2020 and March 2023; 50 patients were enrolled. The patients were randomly divided into the new (n=25) method group and the conventional (n=25) method group. Technical success was achieved in 96.0% (24/25) and 48.0% (12/25) of patients in the new and conventional method groups, respectively (risk ratio, 2.00; 95% confidence interval [CI], 1.32 to 3.03; risk difference, 48.0%; 95% CI, 27.0% to 69.0%; p<0.001). Adverse events occurred in 4.0% (1/25) and 36.0% (9/25) of patients in the new and conventional method groups, respectively (risk ratio, 0.11; 95% CI, 0.02 to 0.81; risk difference, –32.0%; 95% CI, –52.3% to –11.7%; p=0.005).
Conclusions
The novel tapered-tip sheath system is a promising option for precisely and safely delivering biopsy forceps to target sites, thereby facilitating the diagnosis of biliary strictures.
6.Issues on Blood Pressure Values in Local Residents and Necessity of Community Pharmacist’s Support for Hypertensive Residents
Masahiro YAMADA ; Koji TOKUMO ; Yasuhiro HIRATA ; Daiju TSUCHIYA ; Masahiro OKADA ; Jun KAMISHIKIRYO ; Hiroshi ONOUE ; Nobuhiro NAGASAKI ; Masakazu HIROSE ; Eijiro KOJIMA ; Itsuko YOKOTA ; Narumi SUGIHARA
Japanese Journal of Social Pharmacy 2024;43(1):12-21
Health support activities for residents were held three times during a period from June, 2016 to November, 2017. The residents registered in order to participate through 11 community pharmacies. Participant’s blood pressure values were measured at the venue of health support activities by pharmacists. The blood pressure values in 66 of the 106 participants were analyzed, excluding 40 participants receiving medical treatment. The rate of participants with hypertension, systolic blood pressure (SBP)≧140 mmHg or diastolic blood pressure (DBP)≧90 mmHg, was 32% (21/66). Of those with hypertension, 43% (9/21) had hypertension of a high risk level, SBP≧160 mmHg or DBP≧100 mmHg. Pharmacists provided lifestyle counseling and encouraged them to make changes in order to achieve tighter blood pressure control. The data of their blood pressure values were provided to community pharmacies for continuing support of their blood pressure control. With the pharmacist’s support, the median value of blood pressure of participants who had hypertension decreased in the second event. In addition, 50% (3/6) of participants who attended the second event with hypertension of high risk level, visited the hospital for a consultation with a doctor after getting pharmacist’s advice. These results indicate that greater access to community pharmacists improved blood pressure control of residents with hypertension. However, there were many residents who consider it difficult to use pharmacies without a prescription. Hence, friendly relationship to residents on their utilizing pharmacies is needed for providing them lifestyle counseling such as preventing hypertension by pharmacists.
7.Convenience of “Loco-check” Combination in Quick Screening of Latent Preliminary Group of Locomotive Syndrome by Measurement of Handgrip Strength: Secondary Analysis of the Previous Report
Koji TOKUMO ; Toshimichi KAJIHARA ; Tsuyoshi ISHIBASHI ; Takehiko TAKAMOTO ; Chiaki ISHII ; Masakazu HIROSE ; Jun KAMISHIKIRYO ; Shuso TAKEDA ; Yuko SARUHASHI ; Nobuhiro NAGASAKI ; Tetsuro TANAKA ; Eijiro KOJIMA ; Kengo BANSHOYA ; Masahiro YAMADA ; Itsuko YOKOTA ; Shinya OKAMOTO ; Masahiro OKADA ; Narumi SUGIHARA
Japanese Journal of Social Pharmacy 2022;41(2):133-140
As a screening tool for detecting latent pre-locomotive syndrome (latent pre-LS) in women over the age of 40, measuring handgrip strength with a cut-off value of 26 kg was proposed in a previous report. However, this screening method missed 22% of latent pre-LS. It would be beneficial to screen almost persons with latent pre-LS in community pharmacies. In this study, it was investigated whether screening using the combination of measuring handgrip strength and the questionnaire, “Loco-check,” which was proposed by the Japanese Orthopaedic Association, improved the detection of latent pre-LS in the same group mentioned above. Combining only one of the “Loco-check” questions, “I cannot put on a pair of socks while standing on one leg,” with the measurement of handgrip strength with the cut-off value of 26 kg, the detection of latent pre-LS was increased to 90.2%. The odds ratio was 9.72 in logistic regression analysis. Using the combination of the measurement of handgrip strength and the response to one question is both rapid and convenient. Therefore, in this study, this screening combination is proposed to be a useful tool in community pharmacies for detecting early latent pre-LS.
8.Underwater Endoscopic Mucosal Resection without Submucosal Injection Facilitates En bloc Resection of Colon Adenomas Extending into a Diverticulum
Yoshikazu HAYASHI ; Masahiro OKADA ; Takaaki MORIKAWA ; Tatsuma NOMURA ; Hisashi FUKUDA ; Takahito TAKEZAWA ; Alan Kawarai LEFOR ; Hironori YAMAMOTO
Clinical Endoscopy 2021;54(3):436-440
Superficial colonic neoplasms sometimes extend into a diverticulum. Conventional endoscopic mucosal resection of these lesions is considered challenging because colonic diverticula do not have a muscularis propria and are deeply inverted. Even if the solution is carefully injected below the mucosa at the bottom of the diverticulum, the mucosa is rarely elevated from the diverticular orifice, and it is usually just narrowed. Although endoscopic submucosal dissection or full-thickness resection with an over-the-scope clip device enables the complete resection of these lesions, it is still challenging, time consuming and expensive. Underwater endoscopic mucosal resection without submucosal injection (UEMR) is an innovative technique enabling en bloc resection of superficial colon lesions. We report three patients with colon adenomas extending into a diverticulum treated with successful UEMR. UEMR enabled rapid and safe en bloc resection of colon lesions extending into a diverticulum.
9.Underwater Endoscopic Mucosal Resection without Submucosal Injection Facilitates En bloc Resection of Colon Adenomas Extending into a Diverticulum
Yoshikazu HAYASHI ; Masahiro OKADA ; Takaaki MORIKAWA ; Tatsuma NOMURA ; Hisashi FUKUDA ; Takahito TAKEZAWA ; Alan Kawarai LEFOR ; Hironori YAMAMOTO
Clinical Endoscopy 2021;54(3):436-440
Superficial colonic neoplasms sometimes extend into a diverticulum. Conventional endoscopic mucosal resection of these lesions is considered challenging because colonic diverticula do not have a muscularis propria and are deeply inverted. Even if the solution is carefully injected below the mucosa at the bottom of the diverticulum, the mucosa is rarely elevated from the diverticular orifice, and it is usually just narrowed. Although endoscopic submucosal dissection or full-thickness resection with an over-the-scope clip device enables the complete resection of these lesions, it is still challenging, time consuming and expensive. Underwater endoscopic mucosal resection without submucosal injection (UEMR) is an innovative technique enabling en bloc resection of superficial colon lesions. We report three patients with colon adenomas extending into a diverticulum treated with successful UEMR. UEMR enabled rapid and safe en bloc resection of colon lesions extending into a diverticulum.


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