Minimally Invasive Therapy & Allied Technologies最新文献

{"title":"Endoscopic intermuscular dissection and endoscopic submucosal dissection for treatment of rectal neuroendocrine tumors: a retrospective cohort study.","authors":"Liu Han, Huiting Hou, Yuyong Tan, Rong Li, Chengbai Liang, Liang Lv, Yongjun Wang, Deliang Liu, Liang Min","doi":"10.1080/13645706.2026.2642667","DOIUrl":"10.1080/13645706.2026.2642667","url":null,"abstract":"<p><strong>Background: </strong>The incidence of rectal neuroendocrine tumors (rNETs) is increasing due to widespread colonoscopy screening. Conventional endoscopic techniques have difficulties in achieving complete resection of rNETs with deep submucosal invasion. Endoscopic intermuscular dissection (EID) enables removal of the mucosa, submucosa, and inner circular muscle layer while preserving rectal wall integrity.</p><p><strong>Methods: </strong>We retrospectively analyzed the patients diagnosed with rNETs between May 2022 and May 2025 at our hospital. Clinical data, endoscopic findings, histopathological results, and follow-up outcomes were reviewed.</p><p><strong>Results: </strong>A total of 13 patients underwent EID for rNETs were enrolled, with 13 ESD cases included for paired comparison. Both groups demonstrated sufficient histologically complete resection rates (92.3% vs 100%, p>0.99). EID required longer procedure time (38.31 ± 12.84 vs. 29.54 ± 4.75 min, p=0.036). Hospitalization costs showed no significant difference (14795.92 ± 2946.61 vs. 12363.00 ± 2585.15, p=0.105).1 case of delayed bleeding occurred in each group, respectively, with no other serious adverse events. No recurrence was reported in 25 cases that achieved histologically complete resection.</p><p><strong>Conclusions: </strong>EID is safe and effective for rNET resection without increasing costs compared to ESD. It may be a feasible option for selected rNETs with suspected deep submucosal invasion requiring adequate vertical margins.</p>","PeriodicalId":18537,"journal":{"name":"Minimally Invasive Therapy & Allied Technologies","volume":" ","pages":"166-174"},"PeriodicalIF":1.8,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147458439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Live surgery in body donors with interactive digital technologies for innovative and interdisciplinary teaching of surgical anatomy.","authors":"Franziska Lang, Anas A Preukschas, Annika Huber, Jakob Ito, Mirco Friedrich, Felix J Klimitz, Eleni A Felinska, Jennifer Fuchs, Philip C Müller, David M Lubotsky, Hannes G Kenngott, Beat P Müller-Stich, Joachim Rom, Joachim Kirsch, Felix Nickel","doi":"10.1080/13645706.2026.2673218","DOIUrl":"https://doi.org/10.1080/13645706.2026.2673218","url":null,"abstract":"<p><strong>Background: </strong>A deep understanding of anatomy is essential for the professional education of competent clinicians, especially surgeons. This study explores an innovative format of live surgery on body donors complemented by interactive digital technologies and assesses its perceived educational value among students. By evaluating the individual digital technologies, this study also evaluates the format's practical feasibility as a testing platform for digital technologies in surgical anatomy education.</p><p><strong>Methods: </strong>Operations were performed on body donors by experts in a live format in front of an audience of 40-80 medical students. Surgeons and anatomy specialists interacted with students and explained procedures step by step. Students actively participated in the operations, gaining direct practical experience. In addition, the latest digital interactive technologies, such as virtual reality (VR) and augmented reality (AR), were continuously used and evaluated.</p><p><strong>Results: </strong>Evaluations demonstrated that 96% of 412 participants were 'very enthusiastic' about the concept and appreciated the use of multimedia teaching methods. The Touch Surgery app was well received (mean 3.2 ± SD 1.3; Likert scale 1-5, where 5 indicated 'fully applies'). By using interactive platforms such as Slido and TED, the contents could be repeated and prepared, which was highly appreciated (mean 4.4 ± SD 1.1; Likert scale 1-5, where 5 indicated 'fully applies'). In particular, the use of computed tomography (CT) scans of the body donors was rated positively (mean 3.6 ± SD 1.4; Likert scale 1-5, where 5 indicated 'fully applies').</p><p><strong>Conclusions: </strong>Live surgery using body donors improved not only the students' self-reported anatomical knowledge but also the innovative digital technologies with a focus on VR and, in particular, the complementary use of CT datasets of body donors, were perceived positively. This new format is a valuable addition to the standard medical curriculum, providing students with further tools for a better understanding of surgical anatomy and potentially supporting greater confidence in long-term clinical practice.</p>","PeriodicalId":18537,"journal":{"name":"Minimally Invasive Therapy & Allied Technologies","volume":" ","pages":"1-9"},"PeriodicalIF":2.0,"publicationDate":"2026-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147964207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Feasibility and safety of the left radial artery approach for pre-cryoablation lipiodol marking in small renal cell carcinomas.","authors":"Kosuke Tabata, Yasuhiro Ushijima, Ryo Murayama, Daisuke Okamoto, Nobuhiro Fujita, Keisuke Ishimatsu, Noriaki Wada, Satoshi Makise, Kousei Ishigami","doi":"10.1080/13645706.2026.2668524","DOIUrl":"10.1080/13645706.2026.2668524","url":null,"abstract":"<p><strong>Background: </strong>This study evaluated the feasibility of lipiodol marking using the left radial artery (LRA) approach prior to cryoablation for small renal cell carcinoma (RCC).</p><p><strong>Methods: </strong>This retrospective study included 59 patients who underwent transarterial lipiodol marking before cryoablation between August 2022 and December 2023. The LRA approach was attempted in 46 patients; 13 patients ineligible for LRA underwent femoral artery (FA) puncture as a descriptive comparator. The primary endpoint was technical success without crossover among attempted LRA cases; secondary endpoints included overall feasibility among candidates, failure reasons, adverse events (AEs), and procedural metrics.</p><p><strong>Results: </strong>Technical success without crossover was 91.3% (42/46), with overall feasibility of 71.2% (42/59). All four LRA failures resulted from arterial anatomical variation/tortuosity (<i>n</i> = 3) or brachial artery dissection (<i>n</i> = 1), completed via FA crossover. Grade I AEs included forearm haematoma (26.1%), LRA occlusion (2.2%), and brachial artery dissection (2.2%). Procedure and fluoroscopy times were longer in the successful LRA cases than in the FA cohort (median 86 vs. 63 min and 1256 vs. 851 s, respectively).</p><p><strong>Conclusions: </strong>LRA-based lipiodol marking achieved technical success in most attempted cases. AEs were manageable but not negligible. Prospective studies are warranted to clarify patient-centred benefits and optimal selection criteria.</p>","PeriodicalId":18537,"journal":{"name":"Minimally Invasive Therapy & Allied Technologies","volume":" ","pages":"1-9"},"PeriodicalIF":2.0,"publicationDate":"2026-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147868483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Short-term impact of the 'Marginal Gains' standardised workflow for laparoscopic right hemicolectomy with complete mesocolic excision (CME): a pre- and post-implementation study.","authors":"Salvador Morales-Conde, Andrea Scammon Duran, Javier Valdes-Hernandez, Juan Carlos Gómez-Rosado, Pietro Mascagni, Juan Cintas Catena, Andrea Balla","doi":"10.1080/13645706.2026.2668522","DOIUrl":"https://doi.org/10.1080/13645706.2026.2668522","url":null,"abstract":"<p><strong>Background: </strong>To evaluate the implementation and clinical impact of a standardised workflow for laparoscopic right hemicolectomy (LRH) with complete mesocolon excision (CME) using a cranial approach in colon cancer, the so-called 'Marginal Gains' project.</p><p><strong>Methods: </strong>This is a single-centre retrospective before-and-after cohort study of prospectively collected data. Outcomes of 29 patients undergoing LRH from 2022 to 2023 (control group) were compared with 34 patients treated between 2023 and 2024, after implementation of a structured CME-oriented workflow (intervention group). The primary outcome was the rate of workflow application and its clinical impact (secondary outcomes) in terms of CME rate (performed when clinically indicated), intraoperative events, 30-day postoperative complications, and lymph nodes harvested.</p><p><strong>Results: </strong>Baseline characteristics were comparable between groups. Workflow was applied in all cases. CME, performed according to predefined clinical criteria, was more frequent in the intervention group (13/34, 38.2%) than in the control group (1/29, 3.4%; <i>p</i> = .001), reflecting structured workflow adoption and potentially introducing selection bias. Overall postoperative complications occurred in 6/34 (17.6%) patients in the intervention group and 13/29 (44.8%) in the control group (<i>p</i> = .027), mainly driven by low-grade (Clavien I-II) events, particularly paralytic ileus (0 vs. 4 cases) and minor anastomotic bleeding (0 vs. 4 cases). One anastomotic leak occurred in the intervention group (2.9%), requiring reoperation with redo anastomosis (Clavien III-b). No significant differences were observed in tumour stage. The mean number of harvested lymph nodes was higher in the intervention group (22.18 ± 6 vs. 18.83 ± 6.50; <i>p</i> = .021).</p><p><strong>Conclusions: </strong>Implementation of the standardised CME-oriented workflow was feasible and associated with lower short-term postoperative morbidity and higher lymph node harvest. Given the non-randomised before-and-after design and limited sample size, these findings should be considered exploratory and hypothesis-generating rather than evidence of definitive improvement in surgical or oncological outcomes. Prospective multicentre validation is warranted.</p>","PeriodicalId":18537,"journal":{"name":"Minimally Invasive Therapy & Allied Technologies","volume":" ","pages":"1-8"},"PeriodicalIF":2.0,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147840034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A physical information neural network-based path planning method for flexible needle puncture of soft tissues.","authors":"Li Zheng, Fan Zhang, Yaozong Huang, Deng Qianxue, Liu Weikang","doi":"10.1080/13645706.2026.2616591","DOIUrl":"10.1080/13645706.2026.2616591","url":null,"abstract":"<p><strong>Background: </strong>Flexible needle puncture is a critical minimally invasive technique where path planning accuracy directly impacts clinical outcomes. Traditional finite element methods are computationally complex and inadequate for real-time procedures.</p><p><strong>Methods: </strong>We propose a physics-informed neural network (PINN) approach for soft tissue puncture path planning. PINN models generate puncturable regions where rapidly-exploring random tree star (RRT*) performs path optimization using neural network-derived soft tissue mechanics models, avoiding collision risks. Progressive learning control strategies provide real-time path optimization, ensuring accurate needle targeting.</p><p><strong>Results: </strong>Experimental results demonstrate dynamic puncture path correction with errors <1 mm, meeting clinical requirements. The progressive learning control strategy effectively optimizes path prediction models through data analysis.</p><p><strong>Conclusion: </strong>The combined PINN-RRT* approach addresses modeling complexity, path planning difficulty, real-time adaptability, and expert dependence in traditional puncture techniques, significantly improving safety and efficiency.</p>","PeriodicalId":18537,"journal":{"name":"Minimally Invasive Therapy & Allied Technologies","volume":" ","pages":"116-124"},"PeriodicalIF":1.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146125565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reflected-wire technique for internal carotid artery catheterisation via the left radial approach in cerebral angiography.","authors":"Sheth Rishabh Hitendra, Vikas Bhatia, Ajay Kumar, Navneet Singla, Rajeev Chauhan","doi":"10.1080/13645706.2026.2628675","DOIUrl":"10.1080/13645706.2026.2628675","url":null,"abstract":"<p><strong>Background: </strong>The aim of this study was to evaluate factors causing difficulty in internal carotid artery (ICA) access using the left transradial approach for diagnostic cerebral angiography.</p><p><strong>Methods: </strong>This was a prospective, single-centre, analytical study (n = 32 enrolled, n = 31 analysed) with an indication for diagnostic cerebral angiography. Diagnostic angiography via left transradial access was performed in all cases. Factors influencing the bilateral ICA catheterisation were evaluated.</p><p><strong>Results: </strong>Diagnostic angiography was successfully completed in all 31 analysed patients (100%). Successful RICA catheterisation was observed in 25 (80.6%) cases, and LICA catheterisation was observed in 77.43% (24/31) of cases. Reflecting the hydrophilic guidewire off the aortic root/valve to gain support and advance the catheter into the ICA was required in 17/24 (70.8%) of LICA and 9/25 (36%) of RICA cases to facilitate catheterisation. Positive correlation was observed between BCA-LCCA, left CCA-left subclavian artery angles and inability to cannulate LICA. A Type III arch was associated with an increased LICA cannulation time. The presence of a bovine aortic arch necessitated the use of the reflected-wire technique to cannulate the LICA.</p><p><strong>Conclusions: </strong>The reflected-wire technique can be used to facilitate ICA catheterisation via the left radial approach.</p>","PeriodicalId":18537,"journal":{"name":"Minimally Invasive Therapy & Allied Technologies","volume":" ","pages":"125-134"},"PeriodicalIF":1.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146150260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Retroperitoneal sentinel lymph node biopsy using vNOTES in endometrial cancer patients with a BMI ≥ 30 kg/m²: a pilot multicenter case series by the Turkish gynecologic oncology group (TRSGO-SLN12).","authors":"Kemal Gungorduk, Selcuk Erkılınc, Vakkas Korkmaz, Candost Hanedan, Serhan Can Iscan, Varol Gülseren, Salih Taskın, Kemal Ozerkan, Cagatay Taskıran","doi":"10.1080/13645706.2026.2625069","DOIUrl":"10.1080/13645706.2026.2625069","url":null,"abstract":"<p><strong>Aim: </strong>This study evaluated the feasibility and surgical outcomes of transvaginal natural orifice transluminal endoscopic surgery (vNOTES) for retroperitoneal sentinel lymph node biopsy (SLNB), specifically targeting obese and morbidly obese patients diagnosed with endometrial cancer (EC).</p><p><strong>Methods: </strong>Pathohistological evaluation confirmed the diagnosis of either Grade I or II endometrioid EC in all participants.</p><p><strong>Results: </strong>In total, 31 patients participated in this study. The median age was 56 [43-75] years and the median BMI was 34 [30-54] kg/m2. Near-infrared fluorescence imaging utilizing ICG was implemented in 17 cases (54.8%), while methylene blue dye was used in 14 cases (45.2%). A median, 4 sentinel lymph nodes (SLNs) were excised per patient, with numbers ranging from 1 to 7. The overall SLN detection rate was 90.3%, with unilateral detection in 9.7% of patients and bilateral detection in 80.6%. During the surgery, two complications occurred, and an additional two developed afterward. In 3.2% of cases, it was required to switch to a conventional laparoscopic procedure. Lymphatic metastases were identified in 3 patients (9.7%). The median hospital stay was 2 days.</p><p><strong>Conclusion: </strong>vNOTES can be a viable alternative to retroperitoneal SLNB, providing distinct benefits, especially for obese and morbidly obese patients with EC.</p>","PeriodicalId":18537,"journal":{"name":"Minimally Invasive Therapy & Allied Technologies","volume":" ","pages":"145-152"},"PeriodicalIF":1.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146150249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"vNOTES <i>versus</i> laparoscopic chromopertubation for tubal factor and unexplained infertility: a comparative study.","authors":"Emre Mat, Murat Levent Dereli, Ismail Baglar, Pınar Birol İlter, Pınar Yıldız, Mehmet Mete Kırlangıç, Uğur Kemal Öztürk, Özer Birge, Gazi Yıldız","doi":"10.1080/13645706.2026.2613118","DOIUrl":"10.1080/13645706.2026.2613118","url":null,"abstract":"<p><strong>Background: </strong>As vaginal natural orifice transluminal endoscopic surgery (vNOTES) is gaining momentum and consolidating its position in minimally invasive surgery for various benign gynecologic conditions, we aimed to evaluate the feasibility, acceptability, and safety of vNOTES chromopertubation compared to laparoscopic chromopertubation in women with suspected tubal factor or unexplained infertility.</p><p><strong>Methods: </strong>Women who underwent vNOTES or laparoscopic chromopertubation between January 2022 and June 2024 were retrospectively studied. After applying exclusion criteria, 58 eligible patients were identified and analyzed. The primary outcomes were surgical complications, overall satisfaction with the procedure, and postoperative pain. Secondary outcomes included the duration of the procedure and participants' postoperative experience of sexual discomfort or pain during intercourse.</p><p><strong>Results: </strong>The basic preoperative demographic and clinical characteristics were comparable. No complications occurred in either surgical group (0/24 <i>vs.</i> 0/34). The duration of surgery (including additional interventions) and length of hospital stay were significantly shorter in the vNOTES CP group (<i>p</i> = 0.015 and 0.044, respectively). These differences were not observed when diagnostic-only cases were considered. The 6- and 12-h postoperative visual analogue scale (VAS) pain scores, as well as the total dose of non-narcotic analgesic used, were significantly lower in the vNOTES CP group (<i>p</i> = 0.004, <0.001, and 0.009, respectively). Changes in pre- and postoperative Female Sexual Function Index (FSFI) pain domain scores showed no statistically significant difference between the groups (<i>p</i> = 0.242). There were no differences in satisfaction with the method.</p><p><strong>Conclusions: </strong>vNOTES chromopertubation appears to be an effective and feasible alternative to laparoscopy for chromopertubation, with greater operability in obese women, better esthetic outcomes, less postoperative pain, and a comparable impact on female sexual life. Larger, multicenter, prospective studies that also report subsequent fertility outcomes are needed to further quantify and determine the safety and broad applicability of vNOTES chromopertubation.</p>","PeriodicalId":18537,"journal":{"name":"Minimally Invasive Therapy & Allied Technologies","volume":" ","pages":"135-144"},"PeriodicalIF":1.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145952420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative analysis of subcutaneous emphysema and port site damage between robotic platforms in gastrectomy.","authors":"Kengo Hayashi, Kenichi Ishibayashi, Kenta Doden, Saki Hayashi, Ryota Matsui, Toshikatsu Tsuji, Hideki Moriyama, Jun Kinoshita, Noriyuki Inaki","doi":"10.1080/13645706.2025.2612480","DOIUrl":"10.1080/13645706.2025.2612480","url":null,"abstract":"<p><strong>Background: </strong>Robotic gastrectomy (RG) is increasingly adopted for the treatment of gastric cancer due to its technical advantages. However, specific complications such as subcutaneous emphysema (SE) and port site dilation (PSD) may arise due to pneumoperitoneum and trocar manipulation. This study aimed to investigate the incidence and risk factors of SE and PSD, with a focus on differences between robotic platforms.</p><p><strong>Methods: </strong>This retrospective study included 126 patients who underwent RG between April 2021 and April 2025. SE was defined as subcutaneous gas extending to the anterior chest wall on postoperative day 1. PSD was evaluated using intraoperative videos and defined as a visible gap between the trocar and abdominal wall. Multivariable logistic regression was performed to identify independent predictors of SE and PSD, including robotic system type (da Vinci Xi vs. hinotori^™).</p><p><strong>Results: </strong>SE and PSD were observed in 20 (15.9%) and 21 (16.7%) patients, respectively. The use of the hinotori^™ was independently associated with a lower incidence of SE (OR: 0.085, 95% CI: 0.01-0.70, <i>p</i> = 0.02) and PSD (OR: 0.089, 95% CI: 0.016-0.39, <i>p</i> = 0.001). No significant association was found between SE or PSD and postoperative complications of Clavien-Dindo grade ≥ II or ≥ III.</p><p><strong>Conclusions: </strong>The docking-free hinotori^™ platform significantly reduced the incidence of SE and PSD compared to the da Vinci Xi. Recognizing the mechanical features of each robotic system and tailoring platform selection to patient and procedural factors may improve surgical outcomes.</p>","PeriodicalId":18537,"journal":{"name":"Minimally Invasive Therapy & Allied Technologies","volume":" ","pages":"87-95"},"PeriodicalIF":2.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145900797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of factors related to successful puncture of the intrahepatic bile duct in endoscopic ultrasound-guided biliary drainage.","authors":"Kentaro Sato, Mitsuru Sugimoto, Rei Suzuki, Hiroyuki Asama, Hiroshi Shimizu, Kento Osawa, Rei Ohira, Hiromasa Ohira","doi":"10.1080/13645706.2026.2618973","DOIUrl":"10.1080/13645706.2026.2618973","url":null,"abstract":"<p><strong>Background: </strong>The factors associated with the success of each step of EUS-BD have not been fully explored. This study aimed to identify the factors associated with successful bile duct puncture for EUS-BD.</p><p><strong>Methods: </strong>We retrospectively reviewed the data of patients with malignant biliary obstruction who underwent EUS-BD at a single institution between 2015 and 2025.</p><p><strong>Results: </strong>EUS-BD was used to perform 46 bile duct punctures on 33 patients. The success rate of bile duct puncture was 80.4%. According to multivariate analysis, the angle of the scope and the puncture needle on the EUS monitor was identified as factors associated with the success of bile duct puncture (<i>p</i> < 0.01). The cutoff value for the angle between the scope and the puncture needle was 59 degrees, the area under the curve (AUC) was 0.86, the sensitivity of 75.7%, and the specificity was 100%.</p><p><strong>Conclusions: </strong>The angle of the scope and the puncture needle was identified as factors associated with the success of bile duct puncture. Applying a strong up-angle to the scope and minimizing the use of the elevator to adjust the angle between the scope and the puncture needle may improve the success rate of bile duct puncture during EUS-BD.</p>","PeriodicalId":18537,"journal":{"name":"Minimally Invasive Therapy & Allied Technologies","volume":" ","pages":"107-115"},"PeriodicalIF":1.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146064922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}