Doğan Özen, Gökhan Arkaz, Kürşat Gümüş, Samsun Lampotang, Nikolaus Gravenstein, Chris Samouce, David Lizdas, Arvin W Trippensee, Robert Sarlay, Yahya Ayhan Acar, Yavuz Katirci
{"title":"Aseptic non-touch technique training for ultrasound guided difficult peripheral vascular access: A prospective randomized study.","authors":"Doğan Özen, Gökhan Arkaz, Kürşat Gümüş, Samsun Lampotang, Nikolaus Gravenstein, Chris Samouce, David Lizdas, Arvin W Trippensee, Robert Sarlay, Yahya Ayhan Acar, Yavuz Katirci","doi":"10.1177/11297298251330944","DOIUrl":"https://doi.org/10.1177/11297298251330944","url":null,"abstract":"<p><strong>Background: </strong>This study aims to evaluate the effectiveness of simulator-based repetitive training on the aseptic non-touch IV placement technique using an ultrasound-guided peripheral vascular access (USPVA) simulator among physicians working in the emergency department (ED), anesthesiology, and medical intensive care units (ICUs) at a tertiary training hospital.</p><p><strong>Methods: </strong>In this prospective randomized study, participants received theoretical training, then randomized into two groups and performed USPVA on the simulator. The simulated vessels were at 5, 10, and 15 mm depths with 2, 4, and 6 mm diameters, respectively. Finally, pre- and post-questionnaires and simulator data were analyzed.</p><p><strong>Results: </strong>A total of 36 physicians, (18 from ED, 9 from anesthesiology and 9 from ICU) participated in the study. Training on the simulator significantly improved the success rate of vascular access (62.5% (135/216)) compared to baseline values (31.9% (69/216); <i>p</i> < 0.001). There was a significant increase in the successful application of the aseptic non-touch technique after the training (96.2% (208/216)) compared to pre-training (42.5% (92/216); <i>p</i> < 0.001). The survey results showed that participants acquired new knowledge related to the aseptic non-touch technique through simulator-based training.</p><p><strong>Conclusion: </strong>This study demonstrates the successful implementation of aseptic non-touch technique for USPVA training for physicians using a mixed reality simulator.</p>","PeriodicalId":56113,"journal":{"name":"Journal of Vascular Access","volume":" ","pages":"11297298251330944"},"PeriodicalIF":1.7,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144980028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Annalisa Noce, Sara Dominijanni, Giulia Marrone, Anna Mudoni, Fabrizio Cristiano, Roberto Palumbo
{"title":"Central venous catheters tip positioning: Insights from a retrospective analysis.","authors":"Annalisa Noce, Sara Dominijanni, Giulia Marrone, Anna Mudoni, Fabrizio Cristiano, Roberto Palumbo","doi":"10.1177/11297298251366016","DOIUrl":"https://doi.org/10.1177/11297298251366016","url":null,"abstract":"<p><strong>Background: </strong>Tunneled central venous catheters (tCVCs) are essential in hemodialysis when arteriovenous access is not feasible. Their correct positioning is crucial to ensure efficient dialysis and prevent complications such as stenosis and thrombosis.</p><p><strong>Methods: </strong>This retrospective, non-randomized study reviewed all tCVC placements performed from January 2017 to December 2024 at the Nephrology Department of St. Eugenio Hospital (Rome, Italy). Data collection focused on catheter tip positioning under fluoroscopy and associated complications.</p><p><strong>Results: </strong>A total of 1238 tCVCs were placed in 1187 patients. Most catheters (83%) were positioned in the right internal jugular vein. Tip placement under fluoroscopic guidance showed 9.8% above the right atrium (RA), 44.5% within, and 45.5% below. Central venous stenosis was diagnosed in 18.8% of patients, with 2.4% requiring stent placement following failed angioplasty.</p><p><strong>Discussion: </strong>Precise tip positioning is critical for maintaining patency and minimizing complications. Fluoroscopy, while commonly used, may underestimate the anatomical boundaries of the RA, as evidenced by discrepancies with CT-based evaluations. Individual patient factors and catheter design can influence final tip position and should be considered during placement. Emerging technologies such as AI and immersive reality show promise in improving procedural accuracy and reducing risks.</p><p><strong>Conclusions: </strong>Optimal tCVC tip positioning remains a clinical challenge with significant implications for patient outcomes. Integration of advanced imaging techniques and AI could enhance accuracy and safety, while further data are needed to clarify the role of malposition in central venous stenosis.</p>","PeriodicalId":56113,"journal":{"name":"Journal of Vascular Access","volume":" ","pages":"11297298251366016"},"PeriodicalIF":1.7,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144980000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Samuel T Rodriguez, Dina Sheira, Samuel Castro, Michelle Zuniga-Hernandez, Ellen Y Wang, Kyle Gardner, Mohamad Hijazi, Lucy Shang, Hannah Nguyen, Holland Stacey, Lexi Young, Charles Cocanower, Matthew Chriss, Christian Jackson, Man Yee Suen, Thomas J Caruso
{"title":"Vibration therapy during needle procedures improves pain sensitivity while worsening pain threshold: A randomized, crossover study of healthy volunteers.","authors":"Samuel T Rodriguez, Dina Sheira, Samuel Castro, Michelle Zuniga-Hernandez, Ellen Y Wang, Kyle Gardner, Mohamad Hijazi, Lucy Shang, Hannah Nguyen, Holland Stacey, Lexi Young, Charles Cocanower, Matthew Chriss, Christian Jackson, Man Yee Suen, Thomas J Caruso","doi":"10.1177/11297298251366739","DOIUrl":"https://doi.org/10.1177/11297298251366739","url":null,"abstract":"<p><strong>Introduction: </strong>Despite advancements in pharmacological and non-pharmacological strategies, pain and anxiety during needle-related procedures affect most patients. Through activation of large diameter nerve fibers, vibration therapy has been proposed to alleviate pain by minimizing perception of concomitant painful stimuli. This study investigated the effectiveness of a Bluetooth-enabled haptic device (BHD) in reducing pain sensitivity and improving patient satisfaction during needle procedures. Given the frequency of vascular access procedures, from IV catheter placements to phlebotomy, improving patient experience during these encounters is essential. Non-pharmacologic tools like the BHD may enhance vascular access by improving patient cooperation and reducing procedure-related distress.</p><p><strong>Methods: </strong>This was a prospective crossover study conducted at an academic hospital in Northern California. Participants included healthy adults with no history of chronic pain, who underwent a series of pinprick stimuli and different vibration patterns (A, B, C, and D) applied by the BHD. The primary outcome investigated mechanical pain sensitivity, and secondary outcomes explored mechanical pain threshold and satisfaction. Mechanical pain sensitivity was assessed using numerical pain ratings, while pain threshold and satisfaction were measured through standardized thresholds and survey responses, respectively. Data were analyzed using mixed-effect linear and logistic regression models.</p><p><strong>Results: </strong>A total of 199 participants were enrolled. All vibration patterns reduced perceived pain compared to the control condition, with Pattern D achieving the greatest reduction (<i>p</i> < 0.001). Regarding mechanical pain threshold, Pattern A increased the odds of pain detection (odds ratio: 1.63, <i>p</i> = 0.019), while other patterns showed no differences. Approximately 77% of participants recommended the BHD.</p><p><strong>Discussion: </strong>The BHD reduced procedural pain, supporting use of vibration therapy as a non-pharmacological strategy to improve patient comfort during needle procedures. Future studies should explore vibration patterns with clinical procedures and assess the device's impact across diverse populations.</p>","PeriodicalId":56113,"journal":{"name":"Journal of Vascular Access","volume":" ","pages":"11297298251366739"},"PeriodicalIF":1.7,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144979963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Francisco Antonio Nieto-Vega, Inmaculada Moreno-González, Begoña Rodríguez-Azor, Ruth María González-Ponce, Verónica Dolores Martínez-Rivera, María Dolores Rico-De-Torres, Ana María Reina-González
{"title":"Hemodialysis catheter-related bacteremia rate is reduced by the use of 0.1% polyhexanide-betaine in a pediatric unit.","authors":"Francisco Antonio Nieto-Vega, Inmaculada Moreno-González, Begoña Rodríguez-Azor, Ruth María González-Ponce, Verónica Dolores Martínez-Rivera, María Dolores Rico-De-Torres, Ana María Reina-González","doi":"10.1177/11297298251369055","DOIUrl":"https://doi.org/10.1177/11297298251369055","url":null,"abstract":"<p><strong>Background: </strong>Infection is one of the main catheter-related complications in children undergoing hemodialysis. Polyhexanide-betaine (PHMB-B) is a broad-spectrum biocide that is especially useful for removing biofilms and improving wound healing. However, there is no evidence regarding its use in routine hemodialysis exit-site care.</p><p><strong>Methods: </strong>In January 2019, we implemented a new exit site care protocol using PHMB-B over 2% chlorhexidine. The aim of our study was to evaluate the effect of this new protocol on catheter-related bacteremia (CRB) and exit-site infection (ESI) rates. For this, we conducted a retrospective chart analysis of pediatric patients admitted to our hemodialysis unit with tunneled catheters from January 2017 to December 2020, comparing incidence rates before and after protocol implementation. CRB was defined as the presence of infectious symptoms without apparent sources, with defervescence after antibiotic treatment and/or catheter removal, with or without microbiological confirmation. ESI was defined as the presence of purulent discharge with/without skin erythema ⩽2 cm from the exit site.</p><p><strong>Results: </strong>Twenty children (50% female) aged 4 months-15 years old were admitted to our unit, for a total of 6177 catheter days. After the implementation of our new protocol, the CRB event rate decreased from 2.64 (10 events) to 0.41/1000 catheter-days (1 event; <i>p</i> = 0.041), and the ESI rate decreased from 2.37 (9 events) to 1.25/1000 catheter-days (3 events; ns). No cutaneous adverse reactions or apparent wearing of the catheter material were observed with the use of PHMB-B.</p><p><strong>Conclusions: </strong>The use of PHMB-B in routine catheter exit site care could be useful in the prevention of catheter-related infectious complications.</p>","PeriodicalId":56113,"journal":{"name":"Journal of Vascular Access","volume":" ","pages":"11297298251369055"},"PeriodicalIF":1.7,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144980017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effectiveness of recanalisation with micropuncture in placement of dialysis catheter in patients with central venous occlusion.","authors":"Eser Bulut, Maksude Esra Kadıoğlu","doi":"10.1177/11297298251367216","DOIUrl":"https://doi.org/10.1177/11297298251367216","url":null,"abstract":"<p><strong>Purpose: </strong>Central venous occlusion represents a major obstacle to establishing reliable dialysis access. This study was designed to systematically evaluate the outcomes of utilising the micropuncture technique for catheter placement in patients with central venous obstruction.</p><p><strong>Materials and methods: </strong>A retrospective analysis was conducted on 20 patients with central venous occlusion undergoing micropuncture-assisted recanalisation between July 2020 and March 2023. Patient demographics, procedural details and outcomes were collected. Success rates were evaluated based on catheter functionality and optimal positioning, while complications were categorised using the CIRSE classification system.</p><p><strong>Results: </strong>Recanalisation was successfully performed in 17 out of 20 patients (85%), with short-segment occlusions demonstrating superior success rates (92.8%) compared to long-segment occlusions (66.6%). Acute and subacute thrombus cases showed higher recanalisation success (100% and 87.5%) compared to chronic thrombus cases (50%). No major complications occurred, while minor haematomas were observed in four patients (20%). The mean catheter patency was 11 months, and the primary patency rate at 12 months was 70%.</p><p><strong>Conclusion: </strong>The micropuncture technique is a safe and effective option for catheter placement in patients with central venous occlusion. Its low complication rates and high technical success highlight its utility in clinical practice, particularly for patients with limited vascular access options.</p>","PeriodicalId":56113,"journal":{"name":"Journal of Vascular Access","volume":" ","pages":"11297298251367216"},"PeriodicalIF":1.7,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144979984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marco Franchin, Maria Cristina Cervarolo, Angela Veneziano, Sophie Salvadore, Silvia Velo, Gabriele Piffaretti, Matteo Tozzi
{"title":"Real-world outcomes of 600 drug-coated balloon angioplasties.","authors":"Marco Franchin, Maria Cristina Cervarolo, Angela Veneziano, Sophie Salvadore, Silvia Velo, Gabriele Piffaretti, Matteo Tozzi","doi":"10.1177/11297298251362927","DOIUrl":"https://doi.org/10.1177/11297298251362927","url":null,"abstract":"<p><strong>Introduction: </strong>The principal challenge in maintaining functional vascular access for hemodialysis is managing outflow stenoses, which are primarily caused by intimal hyperplasia. These stenoses are the leading cause of access dysfunction, leading to inadequate dialysis, increased morbidity, and frequent reinterventions. While drug-coated balloons (DCBs) have emerged as a promising solution by delivering antiproliferative agents to reduce restenosis rates, further clinical insights are needed to establish their role in vascular access management.</p><p><strong>Materials and methods: </strong>We conducted a single-center, retrospective cohort study analyzing 600 DCB angioplasties performed on 234 patients with stenoses or thromboses in arteriovenous fistulas (AVFs) or vascular access grafts (AVGs). Central vein stenoses accounted for 17.5% of cases. Inclusion criteria comprised symptomatic or asymptomatic stenoses >50% detected through Doppler ultrasound. DCBs (Aperto OTW, Cardionovum GmbH, Bonn, Germany) were used following pre-dilatation. Patients were followed for a minimum of 6 months, with functional patency and complications as the primary outcomes.</p><p><strong>Results: </strong>The technical success rate was 95%, with functional patency rates of 82%, 63%, and 42%, at 12, 24, and 36 months, respectively. Freedom from restenosis was 71% in AVFs, 64% in AVGs, and 57% in central vein stenoses at 12 months. The annual reintervention rate was 1.3 (IQR: 0.9-3.1). No major adverse events were reported, and vascular injuries occurred in 1.3% of cases. Univariate analysis revealed no significant impact of comorbidities on outcomes. Our clinical approach prioritizes DCB angioplasty as the first-line treatment, reserving stent grafts for select cases with recurrent or complex stenoses to preserve vascular anatomy and surgical options.</p><p><strong>Conclusion: </strong>Drug-coated balloon angioplasty is a safe and effective treatment for vascular access stenoses, demonstrating robust functional patency and low restenosis rates. Our findings support the use of paclitaxel-eluting DCBs as a cornerstone in vascular access management, emphasizing their role in reducing complications and maintaining long-term access functionality.</p>","PeriodicalId":56113,"journal":{"name":"Journal of Vascular Access","volume":" ","pages":"11297298251362927"},"PeriodicalIF":1.7,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144980045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Michael Gubbels, Roos C van Nieuwenhuizen, Marcel C Weijmer, Margreet Ter Meer, Aloys F J Wust
{"title":"Case series of seven delaminations in an Acuseal haemodialysis graft.","authors":"Michael Gubbels, Roos C van Nieuwenhuizen, Marcel C Weijmer, Margreet Ter Meer, Aloys F J Wust","doi":"10.1177/11297298251359344","DOIUrl":"https://doi.org/10.1177/11297298251359344","url":null,"abstract":"<p><p>The Acuseal graft is a three-layered graft used for haemodialysis, developed to allow early cannulation. Until now six case reports were published describing 16 cases of delamination in these grafts. In our series, 23% of our thrombosed Acuseal grafts showed delamination, suggesting that delamination can be an important cause of flow impairment or thrombosis. Most delaminations seem puncture related. Here we present the characteristics of seven cases with focus on diagnosis and treatment.</p>","PeriodicalId":56113,"journal":{"name":"Journal of Vascular Access","volume":" ","pages":"11297298251359344"},"PeriodicalIF":1.7,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144979957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ming-Cong Cao, Wei Jiang, Ru-Fu Jia, Ke-Li Pan, Jingyi Sun
{"title":"Real-world effectiveness of rope-ladder in situ cannulation in reducing pain and complications for hemodialysis patients with autogenous arteriovenous fistula.","authors":"Ming-Cong Cao, Wei Jiang, Ru-Fu Jia, Ke-Li Pan, Jingyi Sun","doi":"10.1177/11297298251364339","DOIUrl":"https://doi.org/10.1177/11297298251364339","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the real-world effectiveness of the rope-ladder in situ puncture technique in autogenous arteriovenous fistulas (AVF) for hemodialysis patients.</p><p><strong>Methods: </strong>A retrospective analysis was conducted on 88 AVF patients from the Hemodialysis Center of Cangzhou Central Hospital. The observation group (<i>n</i> = 40) received the Rope Ladder-in-Situ Cannulation Technique (RLiSCT), while the control group (<i>n</i> = 48) underwent conventional rope-ladder or area puncture. Outcomes included puncture pain scores (Numeric Rating Scale, NRS), single-puncture success rate, aneurysm incidence, and complication rates.</p><p><strong>Results: </strong>Baseline characteristics were comparable between groups (<i>p</i> > 0.05). At 1 month, single-puncture success rates showed no significant difference (<i>p</i> > 0.05). By 3 and 6 months, the observation group achieved 100% success, significantly higher than the control group (91.83% and 94.39%, <i>p</i> < 0.05). At 12 months, the observation group demonstrated lower pain scores (4.36 ± 1.65 vs 6.23 ± 2.01, <i>p</i> < 0.05), reduced aneurysm incidence (2.50% vs 16.67%, <i>p</i> < 0.05), and fewer total complications (7.50% vs 31.25%, <i>p</i> < 0.05).</p><p><strong>Conclusion: </strong>The rope-ladder in situ puncture technique reduces pain, improves single-puncture success rates, and lowers aneurysm risk without increasing overall complications, supporting its clinical utility in hemodialysis AVF management.</p>","PeriodicalId":56113,"journal":{"name":"Journal of Vascular Access","volume":" ","pages":"11297298251364339"},"PeriodicalIF":1.7,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144818400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The efficacy of ultrasound-guided selective cutaneous nerve block during percutaneous transluminal angioplasty for radiocephalic arteriovenous fistulas.","authors":"Taisuke Shimizu, Tomonari Ogawa, Tatsuro Sano, Toru Hida, Akihiko Seo, Nozomi Abe, Takayuki Tohara, Shunsuke Takahashi, Akito Maeshima, Hajime Hasegawa","doi":"10.1177/11297298251360849","DOIUrl":"https://doi.org/10.1177/11297298251360849","url":null,"abstract":"<p><strong>Background: </strong>Percutaneous transluminal angioplasty (PTA) for dysfunctional radial cephalic arteriovenous fistulas (RC-AVF) is associated with severe pain. This study evaluates the effectiveness of ultrasound-guided selective cutaneous nerve block (SCNB) in reducing procedural pain.</p><p><strong>Methods: </strong>A total of 292 dialysis patients with RC-AVFs undergoing 292 PTA procedures were retrospectively reviewed. Patients were categorized into three groups based on the anesthesia method: infiltration anesthesia (IA, <i>n</i> = 50), ultrasound-guided infiltration anesthesia (USIA, <i>n</i> = 74), and USIA combined with SCNB (USIA + SCNB, <i>n</i> = 168). SCNB targeted the lateral antebrachial cutaneous nerve (LACN) in all cases, with additional superficial radial nerve (SRN) blocks performed in 106 cases at the operator's discretion. Ultrasound imaging with an 18 MHz linear probe was used to visualize nerves and veins, and 1% lidocaine was administered using a 25G 25 mm needle. Pain was assessed using the Numerical Rating Scale (NRS).</p><p><strong>Results: </strong>No significant differences in baseline characteristics were observed among the IA, USIA, and USIA + SCNB groups. The mean NRS pain scores during balloon inflation were significantly lower in the USIA + SCNB group (2.33 ± 2.08) compared to the IA group (5.24 ± 2.34, <i>p</i> < 0.001) and the USIA group (4.14 ± 2.70, <i>p</i> < 0.001). Among 38 cases with isolated forearm lesions, there was no significant difference between LACN-only and LACN + SRN blocks (2.42 ± 2.04 vs 2.63 ± 1.92, <i>p</i> = n.s.). However, in 75 cases with isolated peri-anastomotic lesions, the addition of an SRN block significantly reduced pain compared to LACN block alone (1.77 ± 1.82 vs 3.00 ± 1.78, <i>p</i> < 0.05).</p><p><strong>Conclusion: </strong>SCNB, particularly LACN block for forearm stenosis and combined LACN + SRN block for peri-anastomotic lesions, effectively reduces pain during PTA of RC-AVFs. When combined with USIA, SCNB further enhances analgesic effectiveness during PTA, and the two methods demonstrate a synergistic effect. This method provides safe, motor-sparing anesthesia, improving patient comfort in endovascular procedures.</p>","PeriodicalId":56113,"journal":{"name":"Journal of Vascular Access","volume":" ","pages":"11297298251360849"},"PeriodicalIF":1.7,"publicationDate":"2025-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144805358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}