CVIR Endovascular最新文献

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Novel pain management strategy for uterine fibroid embolization. 子宫肌瘤栓塞治疗疼痛的新策略。
IF 1.2
CVIR Endovascular Pub Date : 2025-01-22 DOI: 10.1186/s42155-025-00516-3
Elaine Ho, Kiat Tsong Tan
{"title":"Novel pain management strategy for uterine fibroid embolization.","authors":"Elaine Ho, Kiat Tsong Tan","doi":"10.1186/s42155-025-00516-3","DOIUrl":"10.1186/s42155-025-00516-3","url":null,"abstract":"<p><strong>Background: </strong>Uterine fibroid embolization can be associated with significant pain due to fibroid ischemia and interventions of the procedure itself. Fentanyl and midazolam are commonly provided for sedation and pain relief, but are not tolerated by all patients. This report outlines a novel pain management strategy for uterine fibroid embolization in a patient who could not receive either opioids or benzodiazepines.</p><p><strong>Methods: </strong>A 51 year old woman presenting with menorrhagia due to uterine fibroids was referred to interventional radiology for embolization. She was allergic to most opiates and had previously become agitated with IV midazolam, resulting in termination of a previous attempt at embolization. Thus, a combination of three analgesic modalities was used: intraarterial ropivacaine in the uterine arteries, superior hypogastric nerve block with ropivacaine, and intravenous acetaminophen. The patient underwent successful embolization and reported only intermittent pain of 1-2 out of 10 intensity.</p><p><strong>Discussion: </strong>This combined analgesic cocktail represents a novel alternative to traditional sedation for uterine fibroid embolization and may serve as a viable option for patients with similar contraindications.</p>","PeriodicalId":52351,"journal":{"name":"CVIR Endovascular","volume":"8 1","pages":"8"},"PeriodicalIF":1.2,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11754559/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143016057","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}
引用次数: 0
Large-bore aspiration thrombectomy for the treatment of pulmonary embolism in octogenarians. 大口径抽吸取栓术治疗八旬老人肺栓塞。
IF 1.2
CVIR Endovascular Pub Date : 2025-01-22 DOI: 10.1186/s42155-025-00517-2
Reid Masterson, Travis Pebror, Andrew Gauger, Adam William Schmitz, Sabah David Butty
{"title":"Large-bore aspiration thrombectomy for the treatment of pulmonary embolism in octogenarians.","authors":"Reid Masterson, Travis Pebror, Andrew Gauger, Adam William Schmitz, Sabah David Butty","doi":"10.1186/s42155-025-00517-2","DOIUrl":"10.1186/s42155-025-00517-2","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate outcomes in patients aged ≥ 80 years following large-bore aspiration thrombectomy (LBAT) for the treatment of pulmonary embolism (PE).</p><p><strong>Materials and methods: </strong>All patients ≥ 80 years of age with PE treated via LBAT at a single center were analyzed from September 2019 - August 2024. This included the octogenarian subgroup from a recently published retrospective analysis assessing all PE patients treated with LBAT at our center between September 2019 and January 2023. The following outcomes were evaluated: technical success, change in several hemodynamic measures including pulmonary artery pressure (PAP) and right ventricle to left ventricle ratio (RV to LV ratio), length of hospital and intensive-care-unit (ICU) stay, procedure-related complications, and 7- and 30-day mortality.</p><p><strong>Results: </strong>Forty-eight patients aged ≥ 80 years underwent LBAT procedures for PE. Technical success was achieved in 46 cases (95.8%). The mean reduction in mean PAP was 3.6 mmHg. The mean reduction in RV to LV ratio was -0.42. The mean length of postprocedural hospital and ICU stays were 5.7 ± 3.6 days and 1.0 ± 1.6 days, respectively. There were 2 procedural complications, 1 pulmonary vascular injury involving a pulmonary artery pseudoaneurysm and 1 decompensation involving hypotension requiring vasopressor support. There were no major bleeding complications or cardiac injuries. All-cause mortality was 2.1% (n = 1) at 7 days and 6.3% (n = 3) at 30 days post procedure. PE-related mortality was 2.1% (n = 1) at 30 days.</p><p><strong>Conclusion: </strong>LBAT is a technically feasible procedure for the treatment of PE in octogenarian patients and has a favorable preliminary safety and mortality profile.</p>","PeriodicalId":52351,"journal":{"name":"CVIR Endovascular","volume":"8 1","pages":"7"},"PeriodicalIF":1.2,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11754570/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143016056","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}
引用次数: 0
Safety of accessing brachial veins for large-bore upper extremity venous thrombectomy using ClotTriever Thrombectomy System. clottriver取栓系统大口径上肢静脉取栓进入臂静脉的安全性。
IF 1.2
CVIR Endovascular Pub Date : 2025-01-11 DOI: 10.1186/s42155-024-00509-8
Luke A Verst, Colvin Greenberg, David S Shin, Matthew Abad-Santos, Eric J Monroe, Mina S Makary, Jeffrey Forris Beecham Chick
{"title":"Safety of accessing brachial veins for large-bore upper extremity venous thrombectomy using ClotTriever Thrombectomy System.","authors":"Luke A Verst, Colvin Greenberg, David S Shin, Matthew Abad-Santos, Eric J Monroe, Mina S Makary, Jeffrey Forris Beecham Chick","doi":"10.1186/s42155-024-00509-8","DOIUrl":"10.1186/s42155-024-00509-8","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate access site adverse events following ClotTriever-mediated large-bore mechanical thrombectomy via small upper extremity deep veins (< 6-mm).</p><p><strong>Materials and methods: </strong>Twenty patients, including 24 upper extremity venous access sites, underwent ClotTriever-mediated large-bore thrombectomy of the upper extremity and thoracic central veins for symptomatic deep vein obstruction unresponsive to anticoagulation. Patients without follow-up venous duplex examinations (n = 3) were excluded. Patients who had > 6-mm diameter veins accessed (n = 3) were excluded. Temporary purse-string sutures and manual pressure were used for access site hemostasis in all patients. Vein access site and diameter, technical success (defined as placement of the 13.5-French ClotTriever sheath followed by thrombectomy), and early (< 30-days) and late (> 30-days) access site-related adverse events (according to the Adverse Event Classification by the Society of Interventional Radiology criteria) were recorded.</p><p><strong>Results: </strong>Fourteen patients (8 males, 6 females; mean age 51.7 ± 13.6 years) comprising 16 upper extremity venous access sites were included in this study. Access sites included: right brachial (n = 7), left brachial (n = 5), and bilateral brachial (n = 2) veins. The mean access site diameter was 4.3-mm ± 0.67-mm. Technical success was achieved via all access sites. Six (42.9%) patients underwent stent reconstruction following thrombectomy through the same accesses. After the procedure, all purse-string sutures were removed within 24 h. Three (21.4%) patients experienced small access site hematomas that did not require transfusion, intervention, or prolonged hospitalization. Initial follow-up venous duplex ultrasounds were performed at 29.3 ± 21.7 days following intervention. The mean follow-up interval to the second and third venous duplex ultrasounds were 124.3 ± 64-days and 225.1 ± 80.1 days, respectively. One (7.1%) patient developed right arm swelling six days after the procedure and was found to have thrombosis of the previously accessed right brachial vein. No other clinically or sonographically significant access site adverse events were observed.</p><p><strong>Conclusion: </strong>ClotTriever-mediated large-bore thrombectomy via small upper extremity veins is safe with minimal access site adverse events.</p>","PeriodicalId":52351,"journal":{"name":"CVIR Endovascular","volume":"8 1","pages":"6"},"PeriodicalIF":1.2,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11724819/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142967148","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}
引用次数: 0
Lymphatic leaks - success of intranodal lymphangiogram first strategy. 淋巴渗漏——结内淋巴管造影第一策略的成功。
IF 1.2
CVIR Endovascular Pub Date : 2025-01-09 DOI: 10.1186/s42155-024-00499-7
Alan Campbell, Diana Velazquez-Pimentel, Matthew Seager, Richard Hesketh, Julian Hague, Jowad Raja, Jocelyn Brookes, An Ngo, Miles Walkden, Anthie Papadopoulou, Daron Smith, Borzoueh Mohammadi, Ravi Barod, Mohammed Rashid Akhtar, Jimmy Kyaw Tun, Deborah Elise Low, Ian Daniel Renfrew, Tim Fotheringham, Conrad von Stempel
{"title":"Lymphatic leaks - success of intranodal lymphangiogram first strategy.","authors":"Alan Campbell, Diana Velazquez-Pimentel, Matthew Seager, Richard Hesketh, Julian Hague, Jowad Raja, Jocelyn Brookes, An Ngo, Miles Walkden, Anthie Papadopoulou, Daron Smith, Borzoueh Mohammadi, Ravi Barod, Mohammed Rashid Akhtar, Jimmy Kyaw Tun, Deborah Elise Low, Ian Daniel Renfrew, Tim Fotheringham, Conrad von Stempel","doi":"10.1186/s42155-024-00499-7","DOIUrl":"10.1186/s42155-024-00499-7","url":null,"abstract":"<p><strong>Background: </strong>Lymphatic leaks are associated with significant mortality and morbidity. Intranodal lymphangiography (ILAG) involves the direct injection of ethiodised lipid into the hilum of lymph nodes. It is diagnostic procedure that can have therapeutic effects secondary to a local sclerosant effect. The aim of the study is to describe the technical and clinical success of ILAG and adjunctive lymphatic interventions performed as first line interventional techniques for lymphatic leaks refractory to conservative and medical management in a multicentre cohort of patients with symptomatic large volume lymphatic leaks.</p><p><strong>Methods: </strong>Multicentre retrospective study of all lymphatic interventions performed between 2017-2023 in patients with large volume lymphatic leaks (> 500 ml a day). Intranodal lymphangiography was performed initially with technical success defined as opacification of the lymphatics at the aortic bifurcation and demonstration of lymphatic leak on the index ILAG procedure or immediate post procedural CT was recorded. Lymphatic embolisation was performed with a combination of direct puncture or transvenous cannulation with glue and or coil embolisation of the thoracic duct or leak point and in cases with refractory leak. Clinical success was defined as reduction in drain output to less than 20 mL per 24 h, or no further insensible lymph leak. Time to clinical success after ILAG and adjunctive embolisation was recorded.</p><p><strong>Results: </strong>ILAG alone lead to clinical success in 14 of 32 (44%) patients after a median of 14 days. Subsequent embolisation was performed in 12 refractory cases; this was successful in 8 (67%) at median of 8 days. Overall clinical success of all lymphatic interventions was 69% (22 of 32 patients) at a median of 11 days (IQR 5-34). No statistically significant correlation between the site of leakage, aetiology or embolisation technique correlated with clinical success. Decision to proceed to repeat ILAG or an adjunct procedure was made on a clinical basis, following multidisciplinary discussion.</p><p><strong>Conclusions: </strong>ILAG can be employed a first line interventional therapeutic technique to treat clinically significant lymphatic leaks that are refractory to conservative and medical management. Adjunctive procedures, including embolisation, can be considered as part of clinical decision making after a period of 1-2 weeks' watchful waiting in continuingly refractory cases.</p>","PeriodicalId":52351,"journal":{"name":"CVIR Endovascular","volume":"8 1","pages":"4"},"PeriodicalIF":1.2,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11718034/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142958632","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}
引用次数: 0
Percutaneous transhepatic arterial access for coil embolization of hepatic artery infusion pump-associated bleeding. 经皮经肝动脉栓塞治疗肝动脉灌注泵相关出血。
IF 1.2
CVIR Endovascular Pub Date : 2025-01-09 DOI: 10.1186/s42155-024-00515-w
Anuj K Dutta, Vishal Shankar, Ernesto G Santos, Brett Marinelli, Erica S Alexander, Vlasios S Sotirchos, Ken Zhao
{"title":"Percutaneous transhepatic arterial access for coil embolization of hepatic artery infusion pump-associated bleeding.","authors":"Anuj K Dutta, Vishal Shankar, Ernesto G Santos, Brett Marinelli, Erica S Alexander, Vlasios S Sotirchos, Ken Zhao","doi":"10.1186/s42155-024-00515-w","DOIUrl":"10.1186/s42155-024-00515-w","url":null,"abstract":"<p><strong>Background: </strong>Hepatic artery infusion pump (HAIP) chemotherapy is a locoregional treatment for intrahepatic malignancies. HAIPs are surgically implanted, and the catheter tip is typically inserted into a ligated gastroduodenal artery stump. Potential complications at the catheter insertion site include dehiscence, pseudoaneurysm or extravasation, and adjacent hepatic arterial stenosis and thrombosis. Bleeding complications can be treated with stent-graft placement or coil embolization across the injury site, typically with standard antegrade arterial approach into the hepatic arterial system by transfemoral or transradial access. However, in cases where an antegrade approach is not possible, alternative methods are necessary.</p><p><strong>Case presentation: </strong>A patient presented with an enlarging hematoma due to bleeding at the gastroduodenal artery HAIP catheter insertion site. Emergent angiography revealed concomitant common hepatic artery occlusion and retrograde perfusion of the GDA via tortuous, diminutive hepatic collaterals which precluded standard antegrade approach. Collateral inflow from the dorsal pancreatic artery was utilized to opacify the right hepatic artery. The segment 5 hepatic artery was percutaneously accessed under fluoroscopic guidance, and microcoils were deployed both proximal and distal to origin of the gastroduodenal artery. The patient remained stable throughout the postoperative period and was discharged after an otherwise uneventful admission. Follow-up computed tomography demonstrated resolution of the hematoma and no bleeding or biliary complication from transhepatic access.</p><p><strong>Conclusions: </strong>This report highlights the safety and efficacy of percutaneous transhepatic arterial access for endovascular management of HAIP associated bleeding at the gastroduodenal artery when standard antegrade interventions cannot be performed. Interventional radiologists caring for patients with HAIPs should be familiar with their potential complications and the range of techniques required for management.</p>","PeriodicalId":52351,"journal":{"name":"CVIR Endovascular","volume":"8 1","pages":"5"},"PeriodicalIF":1.2,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11717752/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142958633","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}
引用次数: 0
Safety and efficacy of chocolate balloon in the treatment of infrapopliteal artery disease. 巧克力球囊治疗股下动脉疾病的安全性和有效性。
IF 1.2
CVIR Endovascular Pub Date : 2025-01-07 DOI: 10.1186/s42155-024-00501-2
Ridong Wu, Qingqi Yang, Mian Wang, Zilun Li, Chen Yao, Guangqi Chang
{"title":"Safety and efficacy of chocolate balloon in the treatment of infrapopliteal artery disease.","authors":"Ridong Wu, Qingqi Yang, Mian Wang, Zilun Li, Chen Yao, Guangqi Chang","doi":"10.1186/s42155-024-00501-2","DOIUrl":"https://doi.org/10.1186/s42155-024-00501-2","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the safety and efficacy of chocolate balloons in patients with chronic limb-threatening ischemia (CLTI) and infrapopliteal artery disease, and compare them with conventional balloons.</p><p><strong>Methods: </strong>This single-center retrospective study included 167 patients with CLTI and infrapopliteal who underwent endovascular intervention with or without chocolate balloons from September 1, 2019 to June 30, 2023. The primary endpoint was amputation-free survival (AFS). Secondary endpoints included major amputation, the absence of clinically driven target lesion revascularization (CD-TLR), the incidence of flow-limiting dissection, below-the-knee (BTK) stent implantation, change in Rutherford clinical grade, procedural success, and major adverse cardiovascular events (MACEs). Patients were followed at 30 days, 6 months, and 12 months to assess symptom improvement, vascular patency as determined by dual-function ultrasound or angiography, and survival.</p><p><strong>Results: </strong>At 12 months, AFS was noted in 78.1% of patients in chocolate balloon group and 70.7% of those in conventional balloon group (p = 0.37). The chocolate balloon group demonstrated a significantly higher rate of CD-TLR absence, with 84.0% compared to 69.4% in the conventional balloon group (p = 0.04). The chocolate balloon group had a major amputation-free rate of 92.8%, slightly better than the 89.5% in the conventional balloon group (p = 0.58). Notably, the chocolate balloon group significantly reduced flow-limiting dissection (p = 0.02) and BTK stent implantation (p = 0.03) compared to the conventional balloon group.</p><p><strong>Conclusion: </strong>Chocolate balloon reduces the incidence of flow-limiting dissection and BTK stent implantation in patients with CLTI and infrapopliteal. Compared with conventional balloons, there was less lesion revascularization at 12 months, but no significant benefit was found in improving ASF and reducing major amputation of the affected limb.</p>","PeriodicalId":52351,"journal":{"name":"CVIR Endovascular","volume":"8 1","pages":"3"},"PeriodicalIF":1.2,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11707162/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142958634","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}
引用次数: 0
Direct percutaneous puncture of occluded venous stents as an adjunctive technique to restore patency. 直接经皮穿刺闭塞静脉支架作为辅助技术,以恢复通畅。
IF 1.2
CVIR Endovascular Pub Date : 2025-01-03 DOI: 10.1186/s42155-024-00514-x
Gabriel E Li, David S Shin, Stephanie Sobrepera, Matthew Abad-Santos, Eric J Monroe, Jeffrey Forris Beecham Chick
{"title":"Direct percutaneous puncture of occluded venous stents as an adjunctive technique to restore patency.","authors":"Gabriel E Li, David S Shin, Stephanie Sobrepera, Matthew Abad-Santos, Eric J Monroe, Jeffrey Forris Beecham Chick","doi":"10.1186/s42155-024-00514-x","DOIUrl":"10.1186/s42155-024-00514-x","url":null,"abstract":"","PeriodicalId":52351,"journal":{"name":"CVIR Endovascular","volume":"8 1","pages":"2"},"PeriodicalIF":1.2,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11699181/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142924087","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}
引用次数: 0
A modified technique for radial artery access: how interventional radiologists can optimise the cardiologists' technique to suite their procedures. 一种改良的桡动脉通路技术:介入放射科医生如何优化心脏病专家的技术以适应他们的手术。
IF 1.2
CVIR Endovascular Pub Date : 2025-01-02 DOI: 10.1186/s42155-024-00497-9
Zaid Aldin, Josephine Weaver, Maha Khan, Tara Sadik, Viktor Manolas, Georgios Tsampoukas, Tariq Khatri, Marius Rebek, Ali Gharib, James Diss
{"title":"A modified technique for radial artery access: how interventional radiologists can optimise the cardiologists' technique to suite their procedures.","authors":"Zaid Aldin, Josephine Weaver, Maha Khan, Tara Sadik, Viktor Manolas, Georgios Tsampoukas, Tariq Khatri, Marius Rebek, Ali Gharib, James Diss","doi":"10.1186/s42155-024-00497-9","DOIUrl":"10.1186/s42155-024-00497-9","url":null,"abstract":"<p><strong>Background: </strong>This is a single-centre prospective observational study examining radial access in 62 Prostatic Artery Embolisation (PAE) procedures. Evaluation of left radial artery diameter using high frequency ultrasound before and after administration of sublingual glycerl trinitrate (GTN). Pre-procedure questionnaires calculating symptom severity score compared with post-procedure.</p><p><strong>Results: </strong>Sublingual GTN resulted in a statistically significant increase in radial artery diameter (p < .00001). There was a statistically significant reduction in both average International Prostate Symptom Score (IPSS) and Quality of Life (QoL) from pre-procedure to post-PAE. The radial sheath was successfully inserted in 100% of cases. Crossover rate to femoral access was low (4%). Radial artery access had a low complication rate (2%). Radial artery variant anatomy was reasonably common (7%).</p><p><strong>Conclusions: </strong>Sublingual GTN significantly increase radial artery diameter. PAE from radial access is associated with a symptomatic improvement at 2-month follow-up.</p>","PeriodicalId":52351,"journal":{"name":"CVIR Endovascular","volume":"8 1","pages":"1"},"PeriodicalIF":1.2,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11695660/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142924115","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}
引用次数: 0
Intravascular ultrasound-derived virtual fractional flow reserve in the superficial femoral artery. 超声血管内衍生的股浅动脉虚拟分流血流储备。
IF 1.2
CVIR Endovascular Pub Date : 2024-12-27 DOI: 10.1186/s42155-024-00513-y
Takenobu Shimada, Yoshihiro Iwasaki, Atsushi Funatsu, Tomoko Kobayashi, Shigeru Nakamura, Daiju Fukuda
{"title":"Intravascular ultrasound-derived virtual fractional flow reserve in the superficial femoral artery.","authors":"Takenobu Shimada, Yoshihiro Iwasaki, Atsushi Funatsu, Tomoko Kobayashi, Shigeru Nakamura, Daiju Fukuda","doi":"10.1186/s42155-024-00513-y","DOIUrl":"10.1186/s42155-024-00513-y","url":null,"abstract":"<p><strong>Background: </strong>Fractional flow reserve (FFR) can be estimated by analysis of intravascular imaging in a coronary artery; however, there are no data for estimated FFR in an extremity artery. The aim of this concept-generating study was to determine whether it is possible to estimate the value of peripheral FFR (PFFR) by intravascular ultrasound (IVUS) analysis also in femoropopliteal artery lesions.</p><p><strong>Methods: </strong>Between April 2022 and February 2023, PFFR was measured before endovascular therapy in 31 stenotic femoropopliteal artery lesions. High-definition IVUS measurement was simultaneously performed in automatic pullback mode in 6 of those 31 lesions. IVUS-derived PFFR was calculated by an algorithm based on fluid dynamics as the following equation: ΔP = FV + SV<sup>2</sup>. F is the coefficient of pressure loss because of viscous friction (Poiseuille's equation) and S is the coefficient of local pressure loss because of flow separation (Bernoulli's equation). The values of F and S were calculated by analysis of IVUS. V is velocity and the value of V was obtained from previously reported data in a duplex ultrasound study. The mean pressure was assumed to be 80 mmHg, and IVUS-derived PFFR was calculated by the following equation: IVUS-derived PFFR = (80 - ΔP) / 80.</p><p><strong>Results: </strong>The values of IVUS-derived PFFR and actual PFFR were similar: 0.73 and 0.72, 0.87 and 0.92, 0.90 and 0.92, 0.66 and 0.73, and 0.79 and 0.72, respectively. In one case in which run-off of the below-the-knee artery was poor, PFFR (0.91) was higher than the IVUS-derived PFFR (0.73).</p><p><strong>Conclusion: </strong>Virtual PFFR in the superficial femoral artery can be estimated from IVUS analysis.</p>","PeriodicalId":52351,"journal":{"name":"CVIR Endovascular","volume":"7 1","pages":"92"},"PeriodicalIF":1.2,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11671458/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142900265","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}
引用次数: 0
"Bottoms-up" portal venous recanalization TIPS (PVR-TIPS) utilizing a re-entry catheter. 采用再入导管的“自下而上”门静脉再通TIPS (PVR-TIPS)。
IF 1.2
CVIR Endovascular Pub Date : 2024-12-23 DOI: 10.1186/s42155-024-00510-1
Alexander Loizides, Martin Freund, Heinz Zoller, Benedikt Schäfer
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