Gabriela M Wilson, Rebecca P Winsett, Bhumika Modi, Ru Jia, Terilea Patton, Debra Silberberg
{"title":"Comparative intervention assessing a catheter stabilization device on peripheral intravenous line loss.","authors":"Gabriela M Wilson, Rebecca P Winsett, Bhumika Modi, Ru Jia, Terilea Patton, Debra Silberberg","doi":"10.1177/11297298221098331","DOIUrl":"10.1177/11297298221098331","url":null,"abstract":"<p><strong>Background: </strong>Short peripheral intravenous catheters are the most common invasive procedure used to deliver medications, blood products, and fluids to patients, and failure has the potential to impact the quality of care.</p><p><strong>Methods: </strong>This study compared IVs stabilized with current transparent film dressing to those using an engineered stabilization device. The first phase of the study evaluated documentation; data from patient records were found less than optimal but most complete for securement and removal, the two fields most critical to the study. The second phase measured IV dwell time, restart rates, and time between IV loss and restarts.</p><p><strong>Results: </strong>Although there were no statistically significant differences in restarts, the IV dwell time was longer when the engineered device was in place, helping to extend the life of the IV and prevent interruption of care. In the absence of data on the cost of infections and other complications, the use of an engineered device increased the cost of IV starts.</p><p><strong>Conclusions: </strong>Adding an engineered stabilization device increases the cost of peripheral IV starts, but contributes to reducing IV restarts and preventing IV complications due to destabilized IVs. Although there were no statistically significant differences in restarts, the IV dwell time was longer when the device was in place, helping to extend the life of the IV and prevent interruption of care. Complete and accurate documentation and improved quality depended upon the ability to abstract unit-level data, which is vital for capturing the appropriate healthcare indicators. Clinical nurses must be involved in the decision-making regarding health records and operability at the unit level.</p>","PeriodicalId":35321,"journal":{"name":"JAVA - Journal of the Association for Vascular Access","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87663117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ru Yu Tan, Alvin Ren Kwang Tng, Chee Wooi Tan, Suh Chien Pang, Kun Da Zhuang, Kiang Hiong Tay, Tjun Yip Tang, Tze Tec Chong, Chieh Suai Tan
{"title":"Sirolimus-coated balloon angioplasty in maintaining the patency of thrombosed arteriovenous graft: 1-year results of a prospective study.","authors":"Ru Yu Tan, Alvin Ren Kwang Tng, Chee Wooi Tan, Suh Chien Pang, Kun Da Zhuang, Kiang Hiong Tay, Tjun Yip Tang, Tze Tec Chong, Chieh Suai Tan","doi":"10.1177/11297298221104310","DOIUrl":"10.1177/11297298221104310","url":null,"abstract":"<p><strong>Background: </strong>A prospective, pilot study was designed to test the feasibility of using sirolimus-coated balloon (SCB) to treat graft vein junction of thrombosed arteriovenous graft (AVG) following successful pharmacomechanical thrombectomy. The present report provides the 1-year results of this study.</p><p><strong>Methods: </strong>This is a 1-year follow-up of a single, prospective, single-arm study that was conducted from 2018 to 2019 in 20 patients who presented to a tertiary institution with thrombosed AVG. The recruited patients received SCB angioplasty at the graft-vein junction following successful endovascular thrombectomy of a thrombosed AVG. One year after recruitment, there were three deaths, one AVG revision, and one AVG explantation among the participants recruited. The outcomes of 15 subjects at 1-year following the index procedure obtained from electronic medical records were re-examined.</p><p><strong>Results: </strong>The 1-year access circuit primary patency rate was 40%, while assisted primary and secondary patency rates were 46.7% and 73.3%, respectively. A total of 16 interventions (4 angioplasties, 12 thrombectomies) were performed in 9 patients over the 12 months. Four AVGs were abandoned. The median number of interventions per patient was 1 (0-3) per year. Using Kaplan-Meier analysis, the mean estimated post-intervention access circuit primary patency was 230 (95% CI: 162-300) days, while access circuit assisted primary patency was 253 (95% CI: 187-320) days, and access circuit secondary patency was 292 (95% CI: 230-356) days. Sub-group analysis did not show a significant difference in the mean estimated primary patency between AVG with de novo and recurrent stenosis (245 days, 95% CI: 151-339 vs 210 days, 95% CI: 113-307; <i>p</i> = 0.29).</p><p><strong>Conclusions: </strong>SCB may help sustain the patency of thrombosed AVG following successful thrombectomy.</p>","PeriodicalId":35321,"journal":{"name":"JAVA - Journal of the Association for Vascular Access","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10845821/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81019274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Risk of thrombophlebitis associated with continuous peripheral infusion of vancomycin: The effect of dilution.","authors":"Marianna Scarano, Sonia D'Arrigo, Sestilio De Letteriis, Salvatore Grasso, Mauro Pittiruti, Giancarlo Scoppettuolo","doi":"10.1177/11297298221095778","DOIUrl":"10.1177/11297298221095778","url":null,"abstract":"<p><strong>Introduction: </strong>Although several guidelines recommend that prolonged administration of vancomycin should be preferably carried out by a central venous access, vancomycin is often given peripherally. Whether such risk may be affected by different modalities of administration in terms of dilution and time of infusion, it is a matter of controversy.</p><p><strong>Methods: </strong>This single-center prospective study enrolled all consecutive patients requiring prolonged intravenous infusion of vancomycin (1 g/day) using long peripheral cannula \"mini-midline.\" Patients were randomized in study group (4 mg/ml) and control group (20 mg/ml). All patients were systematically evaluated every 24 h by the Visual Exit-Site Score and a daily ultrasound scan of the veins of the arm.</p><p><strong>Results: </strong>The daily ultrasound evaluation showed venous thrombosis at the distal tip of the cannula in all patients, in both groups. After this finding in the first 14 patients, the study was interrupted. All thromboses were completely asymptomatic and occurred in absence of any sign of catheter malfunction. The onset of thrombosis was significantly earlier in the control group (ranging from 24 to 48 h) than in the study group (ranging from 48 to 96 h), with an average of 30 ± 11 versus 68 ± 16 h (<i>p</i> < 0.001).</p><p><strong>Conclusion: </strong>Continuous intravenous infusion of vancomycin should be preferably delivered by a central venous access, as largely recommended by current guidelines, since peripheral infusion is inevitably associated with venous thrombosis, independently from the type of peripheral venous access device adopted (short peripheral cannula vs long peripheral cannula) and from the extent of dilution.</p>","PeriodicalId":35321,"journal":{"name":"JAVA - Journal of the Association for Vascular Access","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77486758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Treatment of intragraft stenosis in hemodialysis grafts with Supera stents: A retrospective study.","authors":"Chai-Hock Chua, Ming-Jen Lu, Hung-Hsing Chao","doi":"10.1177/11297298221077605","DOIUrl":"10.1177/11297298221077605","url":null,"abstract":"<p><strong>Purpose: </strong>To report the patency rates after implantation of an interwoven nitinol stent to salvage failing arteriovenous grafts (AVGs) caused by intragraft stenoses.</p><p><strong>Methods: </strong>Between May 2018 and May 2020, 21 Supera stents were placed in 20 patients (18 women; mean age: 79.9 years) who had a failing AVG due to repeat intragraft stenoses. Recurrent AVG dysfunction with same intragraft stenosis within 3 months after first time angioplasty was a criterion for stenting. Those with concurrent treatment for other lesions were excluded.</p><p><strong>Results: </strong>The technical success rate was 100%. Intragraft stenoses were treated at a median of 19.7 (interquartile range: 6-36) months after graft creation. Access circuit primary patency rates after stent placement were 84% and 35% at 6 and 12 months, respectively. Access circuit secondary patency rates were 100% at 6 and 12 months and 89% at 18 months. Only one patient presented with graft failure due to proximal drainage vein occlusion. The target lesion patency rates were 100% at 6 months and 75% at 12 months. The rate of reintervention for intragraft lesion was 0.15 procedures per year. Stent distortion did not occur under regular cannulation.</p><p><strong>Conclusion: </strong>The interwoven nitinol stent is a promising treatment for failing AVGs with recurrent intragraft stenoses. The 1-year access circuit primary, secondary, and target lesion patency rates were acceptable, with a low reintervention rate. Stent fracture does not occur in areas of needle puncture.</p>","PeriodicalId":35321,"journal":{"name":"JAVA - Journal of the Association for Vascular Access","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74627349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The positioning of the catheter tip with an intracavitary electrocardiogram in epicutaneo-caval catheter placement via lower limbs in newborns: A retrospective study.","authors":"Sha Zhang, Yuxin Zhu, Yuqiong Du, Xinxin Yin","doi":"10.1177/11297298221100174","DOIUrl":"10.1177/11297298221100174","url":null,"abstract":"<p><strong>Objective: </strong>Few studies have been conducted on whether catheterisation via the lower limb pathway is suitable for intracavitary electrocardiogram (ECG) technology. This study explored the positioning of the epicutaneo-caval catheter (ECC) tip with intracavitary ECG via the lower limbs in newborns to determine its optimal placement and to improve the success rate of ECC placement using this method.</p><p><strong>Methods: </strong>Twenty-eight cases were selected for the observation group. The tip location with intracavitary ECG method was used to observe the changes in specific atrial depolarisation (P-wave) during the catheterisation process to determine whether the catheter tip was in the correct position. For comparative observation, chest X-rays and abdominal radiographs were taken within 24 h to determine sensitivity and specificity. The control group included 28 cases where the ECCs were inserted via the lower limbs, and chest X-rays and abdominal radiographs were taken within 24 h after the line was placed to confirm the correct positioning.</p><p><strong>Results: </strong>The success rate of the observation group was 91.30% (there were two cases of primary malposition), and the success rate of the control group was 78.57% (there were six cases of primary malposition). The success rate of the observation group was higher compared with the control group.</p><p><strong>Conclusion: </strong>The tip location with intracavitary ECG method improved the success rate of ECC placement via the lower limbs in neonates. This method can effectively prevent the occurrence of lower limb primary catheter malposition and has significant clinical application value.</p>","PeriodicalId":35321,"journal":{"name":"JAVA - Journal of the Association for Vascular Access","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83708507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Michela Bozzetto, Luca Soliveri, Sofia Poloni, Paolo Brambilla, Diego Curtò, Giuseppina Carmela Condemi, Pietro Cefalì, Irene Spina, Alessandro Villa, Anna Caroli, Andrea Remuzzi
{"title":"Arteriovenous fistula creation with VasQ<sup>TM</sup> device: A feasibility study to reveal hemodynamic implications.","authors":"Michela Bozzetto, Luca Soliveri, Sofia Poloni, Paolo Brambilla, Diego Curtò, Giuseppina Carmela Condemi, Pietro Cefalì, Irene Spina, Alessandro Villa, Anna Caroli, Andrea Remuzzi","doi":"10.1177/11297298221087160","DOIUrl":"10.1177/11297298221087160","url":null,"abstract":"<p><strong>Background: </strong>Arteriovenous fistula (AVF) is the preferred vascular access (VA) for hemodialysis, but it is still affected by high non-maturation and early failure rates due to stenosis development. Increasing evidence suggests that the presence of turbulent-like flow may play a key role, therefore, to stabilize the flow in the venous segment, an external support device (VasQ<sup>TM</sup>) has been designed. The aim of this study was to provide preliminary evidence of VasQ<sup>TM</sup> impact on AVF hemodynamics as compared to AVFs created with conventional surgery.</p><p><strong>Methods: </strong>In this pilot single-center prospective randomized study six patients were enrolled, three in the VasQ group and three in the control group. Contrast-free magnetic resonance imaging (MRI) scans were acquired at 3 days, 3 months and 1 year after AVF surgery and were used to generate 3D patient-specific models. Computational fluid dynamic (CFD) simulations were performed using pimpleFoam, imposing patient-specific flow waveforms derived from ultrasound (US) examinations at the inlet of the proximal and distal artery, and a traction-free condition at the venous outflow. Morphologic and hemodynamic changes occurring over time were compared between VasQ and control AVFs.</p><p><strong>Results: </strong>Our MRI protocol provided high-quality images suitable for reliable segmentation and reconstruction of patient-specific 3D models of AVFs at all three timepoints in four out of six patients. The VasQ<sup>TM</sup> device maintained the angle between the artery and the vein almost unchanged over time, with a more stable flow in the AVFs supported by the device. In contrast, one of the AVFs of the control group evolved to an extreme dilatation of the vein and highly disturbed flow, while the other developed a stenosis in the juxta-anastomotic region.</p><p><strong>Conclusions: </strong>This study demonstrated the feasibility of characterizing the morphological and hemodynamic changes occurring over time in AVFs created using the VasQ<sup>TM</sup> device and provided preliminary evidence of the potential hemodynamic benefits of its use.</p>","PeriodicalId":35321,"journal":{"name":"JAVA - Journal of the Association for Vascular Access","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10845834/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89856719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Saliha Yildirim, Beyza Yilmaz, Eren Yilmaz, Ulver Boztepe Derici
{"title":"Metastatic spondylodiscitis in central venous catheter related bloodstream infections in hemodialysis patients: Risk factors and prognosis.","authors":"Saliha Yildirim, Beyza Yilmaz, Eren Yilmaz, Ulver Boztepe Derici","doi":"10.1177/11297298221085460","DOIUrl":"10.1177/11297298221085460","url":null,"abstract":"<p><strong>Background: </strong>Infection is one of the most common causes of death in hemodialysis patients. Catheter infections are among the most common infections in this patient group. Spondylodiscitis which has a high incidence in ESRD is more commonly encountered in patients with CVCs compared to AVF. In this study, we aimed to evaluate the frequency and risk factors of spondylodiscitis in catheter-related bloodstream infections in hemodialysis patients.</p><p><strong>Methods: </strong>In total, 1620 patients were screened and 42 male and 35 female patients with central catheter infection with a mean age of 65.8 ± 14.9 years were included in this study. Patients with metastatic infections secondary to CVC related bloodstream infections were determined. The diagnosis of spondylodiscitis was based on clinical information, computed tomography (CT) and magnetic resonance imaging (MRI), and vertebral cultures.</p><p><strong>Results: </strong>Metastatic infection due to catheter infection was observed in 15 patients (19.5%). In the regression analysis, CRP level and RRT time were found to be significantly correlated with the development of metastatic infection. Spondylodiscitis was the most common subtype of metastatic infections (8/15). The presence of lumbar hernia was associated with increased risk of metastatic spondylodiscitis in case of catheter infection in hemodialysis patients. The only factor associated with resistance to medical treatment was the time from admission to diagnosis.</p><p><strong>Conclusion: </strong>Patients with long RRT time and high blood CRP levels on admission should be closely monitored for metastatic infection in patients with CVC related bloodstream infections. Screening for spondylodiscitis with CT or MRI should be performed in patients with symptoms, since early diagnosis may prevent the development of possible neurological deficits and treatment resistance.</p>","PeriodicalId":35321,"journal":{"name":"JAVA - Journal of the Association for Vascular Access","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90016550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Benjamin Paik, Zi Heng Tee, Yoshio Masuda, Andrew Mtl Choong, Jun Jie Ng
{"title":"A systematic review of right atrial bypass grafting in the management of central venous occlusive disease in patients undergoing hemodialysis.","authors":"Benjamin Paik, Zi Heng Tee, Yoshio Masuda, Andrew Mtl Choong, Jun Jie Ng","doi":"10.1177/11297298221095320","DOIUrl":"10.1177/11297298221095320","url":null,"abstract":"<p><strong>Introduction: </strong>Central venous occlusive disease (CVOD) is a complication that can occur in patients with end-stage renal disease who are receiving hemodialysis. When CVOD develops, patients often require multiple re-interventions to maintain their dialysis access. CVOD can be treated by various strategies such as balloon angioplasty, stenting, lower limb or extra-anatomical grafts, hybrid grafts or surgical bypasses such as right atrial (RA). In this systematic review, we aim to evaluate the indications, technical aspects, and outcomes after RA bypass grafting for the treatment of CVOD in hemodialysis patients.</p><p><strong>Methods: </strong>A systematic and comprehensive literature search was conducted using various electronic databases. We included articles that reported described and reported outcomes of RA bypass grafting for the treatment of CVOD in hemodialysis patients. A narrative review of the indications and technical aspects of RA bypass grafting was performed. We also pooled and reported the primary patency, secondary patency, postoperative complications, and 30-day mortality of RA bypass grafting.</p><p><strong>Results: </strong>A total of 21 studies with 55 patients who underwent RA bypass grafting were included in our systematic review. Follow-up period ranged from 0.5 to 84 months. The mean pooled primary patency and secondary patency of RA bypass grafting were 8.1 ± 4.9 and 21.7 ± 20.1 months, respectively. The incidence of early postoperative complications such as surgical site infection, bleeding, and access thrombosis was 0%, 4%, and 4%, respectively. The overall 30-day mortality was 4%.</p><p><strong>Conclusions: </strong>This systematic review summarizes the patient characteristics, technical features and outcomes of RA bypass grafting in the treatment of hemodialysis-related CVOD. RA bypass grafting may be a viable last-resort option when less invasive or conventional treatment options have been exhausted.</p>","PeriodicalId":35321,"journal":{"name":"JAVA - Journal of the Association for Vascular Access","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88129914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Utilization of lateral exit sites for femorally inserted central catheters in pediatric patients: A case report and review of the literature.","authors":"Mark D Weber, Adam S Himebauch, Thomas Conlon","doi":"10.1177/11297298221099138","DOIUrl":"10.1177/11297298221099138","url":null,"abstract":"<p><p>Tunneled femorally inserted central catheters (FICCs) are frequently required for central access in children when upper extremity vessels cannot or should not be cannulated. A recently published decision tool for tunneled FICCs identifies the medial thigh as the preferred exit site. In pediatric patients, this medial exit site may remain at risk of contamination from stool due to anatomic size, and there are no tools developed for FICC exit site decisions specific to children. We present our approach for the placement of the exit site in the far lateral region of the thigh and review previous FICC literature relevant to the pediatric population. In select patients, a lateral approach has the potential to decrease the risk of exit site contamination to prolong catheter viability and reduce patient harm.</p>","PeriodicalId":35321,"journal":{"name":"JAVA - Journal of the Association for Vascular Access","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77456260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jianbin Zhang, Qiangqiang Nie, Xiaojie Xu, Bin He, Xuming Wang, Feng Wang, Peng Liu, Xueqiang Fan, Zhidong Ye
{"title":"A novel extra-catheter guide wire technique for in situ exchange of dysfunctional tunnelled central venous hemodialysis catheter.","authors":"Jianbin Zhang, Qiangqiang Nie, Xiaojie Xu, Bin He, Xuming Wang, Feng Wang, Peng Liu, Xueqiang Fan, Zhidong Ye","doi":"10.1177/11297298221096520","DOIUrl":"10.1177/11297298221096520","url":null,"abstract":"<p><strong>Background: </strong>Tunneled central venous catheters (tCVC) exchange may be difficult in some situations. We retrospectively report our preliminary experience of a novel extra-catheter guide wire technique for exchange of dysfunctional tCVC.</p><p><strong>Materials and methods: </strong>Retrospectively analyze the demographics, treatment details and outcomes data of 39 patients received tCVC exchange from January 2018 to January 2019. According to whether guide wire could pass through the catheter lumen, patients were divided into in-catheter group and extra-catheter group. The technical successful rate, peri-operative complications, 1-month and 6-month catheter flow rate was recorded and compared between the 2 groups.</p><p><strong>Results: </strong>The final study population consists of 39 patients, including 16 in-catheter group and 23 extra-catheter group. The technical successful rate was 100% in both groups. All patients achieved restoration of line patency and completed at least 1 hemodialysis section. The 1-month (267.69 ± 20.12 vs. 274.13 ± 17.69, <i>p</i> = 0.604) and 6-month (255.81 ± 12.93 vs. 256.97 ± 11.20, <i>p</i> = 0.403) catheter flow rate was comparable between the 2 groups.</p><p><strong>Conclusion: </strong>The novel extra-catheter guide wire technique was helpful for in situ exchange of dysfunctional tunneled central venous hemodialysis catheters, especially when the guide wire could not pass through the catheter lumen.</p>","PeriodicalId":35321,"journal":{"name":"JAVA - Journal of the Association for Vascular Access","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83856704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}