Catheterization and Cardiovascular Interventions最新文献

{"title":"Ablation of Idiopathic Premature Ventricular Arrhythmias Originating From the Aortomitral Continuity: A Case Report","authors":"Kadir Karacali,&nbsp;Ibrahim Etem Celik,&nbsp;Esra Varol,&nbsp;Fatih Öksüz,&nbsp;Mustafa Duran","doi":"10.1002/ccd.70710","DOIUrl":"10.1002/ccd.70710","url":null,"abstract":"<div>\u0000 \u0000 <p>The knowledge about ventricular arrhythmias arising from the aortomitral continuity (AMC) location is still limited. In this case we report the ablation of premature ventricular contractions (PVCs) arising from this particular region in a patient with a recent history of mitral valve replacement surgery recently.</p>\u0000 <p>A 53-year-old female patient with a history of mitral valve replacement 6 months ago was referred for frequent PVCs on 24 h Holter monitoring. We have performed the ablation with radiofrequency delivery of PVCs that originated from the AMC region.</p>\u0000 <p>Although ventricular arrhythmias arising from was occurred in structurally normal hearts in general, they may be seen in patients with structural heart disease. As our patients, mitral valve surgeries may result in fibrosis in the peri-AMC region and consequently scar-related reentry, which triggers ventricular arrhythmias.</p>\u0000 </div>","PeriodicalId":9650,"journal":{"name":"Catheterization and Cardiovascular Interventions","volume":"108 3","pages":"682-685"},"PeriodicalIF":1.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148267914","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":"A Modified Technique for Converting Retrograde Femoral Artery Access to Antegrade Access With the Assistance of a Long Sheath","authors":"Guangfeng Zheng,&nbsp;Ze Wang,&nbsp;Chuanyong Li,&nbsp;Qiang Zhang,&nbsp;Zhichang Pan,&nbsp;Shuming Shi,&nbsp;Jianjie Rong","doi":"10.1002/ccd.70683","DOIUrl":"10.1002/ccd.70683","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Percutaneous femoral access serves as the cornerstone of endovascular therapy of lower extremity arterial disease. In complex cases, the arterial disease of lower extremity are involve in ipsilateral iliac artery pathology, which conventional treatment strategies typically require multiple punctures or staged procedures.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>This study aimed to explore the bilateral lower extremity endovascular intervention of patients with coexisting ipsilateral iliac artery stenosis using the long sheath-assisted access conversion technique (LS-ACT) via a single puncture.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>This is a retrospective cohort study of 18 patients with arteriosclerosis obliterans of the lower extremity who were treated between April 2023 and July 2025. The cohort included 13 males and 5 females, with a mean age of 70.4 ± 7.2 years. After retrograde femoral access, contralateral interventions were performed using the LS-ACT protocol.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The LS-ACT was performed in all 18 patients, achieving successful transition from femoral retrograde to antegrade access. Seven of these patients underwent simultaneous bilateral lower extremity arterial interventions. In 11 patients, the LS-ACT was utilized following failed antegrade puncture due to obesity, scarred puncture sites, or a high bifurcation of the profunda femoris artery. Notably, 8 patients presented with hemodynamically significant improvement of ipsilateral iliac artery stenosis, including 2 who had undergone prior stenting. No LS-ACT relevant complications occurred.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The LS-ACT demonstrates substantial clinical utility in real-world practice. It is particularly valuable for patients with ipsilateral iliac artery stenosis or those requiring single-session bilateral lower extremity interventions, and represents a reliable alternative in cases of failed antegrade puncture or when managing bilateral disease.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9650,"journal":{"name":"Catheterization and Cardiovascular Interventions","volume":"108 3","pages":"673-681"},"PeriodicalIF":1.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ccd.70683","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148267963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bilateral Persistent Sciatic Artery With Unilateral Thrombosis: A Rare Case of Acute Limb Ischemia Successfully Managed With Endovascular Intervention","authors":"Hamza A. Abdul-Hafez,&nbsp;Alaa Zayed,&nbsp;Kaser Abbas,&nbsp;Mohammed A. Barakat,&nbsp;Mohanad A. Abuzahra,&nbsp;Lotof Hamdan","doi":"10.1002/ccd.70688","DOIUrl":"10.1002/ccd.70688","url":null,"abstract":"<div>\u0000 \u0000 <p>A persistent sciatic artery is a rare congenital vascular anomaly resulting from the failed regression of the sciatic artery during fetal development. It is associated with complications such as thrombosis, aneurysm formation, and acute limb ischemia. A 49-year-old female presented with acute limb ischemia of the left lower limb. Computed tomography angiography confirmed bilateral persistent sciatic arteries with thrombosis affecting only the left limb. She underwent successful endovascular balloon angioplasty and percutaneous thrombectomy, resulting in symptom resolution. Acute limb ischemia is the second most common presentation of persistent sciatic artery, occurring in 33.3% of cases. While computed tomography angiography is the gold standard for diagnosis, magnetic resonance angiography has been used in select cases. Management includes conservative treatment, endovascular intervention, or surgical repair. A bilateral persistent sciatic artery with unilateral thrombosis is rare. Early diagnosis and appropriate intervention, such as endovascular therapy, are essential to prevent complications. Long-term vascular surveillance is crucial for optimal patient outcomes.</p>\u0000 </div>","PeriodicalId":9650,"journal":{"name":"Catheterization and Cardiovascular Interventions","volume":"108 3","pages":"669-672"},"PeriodicalIF":1.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148267974","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":"Relationship Between Position, Shape, and Deformation of Papillary Muscles and Mitral Regurgitation After Transcatheter Aortic Valve Replacement","authors":"Xi Li,&nbsp;Fei Chen,&nbsp;Wenxia Zhou,&nbsp;Yujia Liang,&nbsp;Zhengang Zhao,&nbsp;Qiao Li,&nbsp;Jiafu Wei,&nbsp;Hong Tang,&nbsp;Yuan Feng,&nbsp;Xin Wei,&nbsp;Mao Chen","doi":"10.1002/ccd.70703","DOIUrl":"10.1002/ccd.70703","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Moderate/severe mitral regurgitation (MR) can affect the prognosis of patients with transcatheter aortic valve replacement (TAVR). However, few studies have focused on the role played by papillary muscles (PMs).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>We intend to explore the relationship between PMs and MR outcome after TAVR.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>This retrospective cohort study included 1159 consecutive patients who underwent TAVR. The 125 patients who had MR ≥ 3+ grade were divided into improved MR (IMR) group and non-improved (NMR) group according to the grading of MR at 6 months after operation. MSCT was used to analyze the shape and locate the attachment of PMs. The deformation and synchrony of the PMs attachment were analyzed using two-dimensional speckle tracking. Associations with MR improvement after TAVR were explored.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>A total of 125 patients (IMR 93 and NMR 32; mean age, 72 years ± 8) were included. There was no significant difference in the deformation and synchrony of myocardium at attachment and in the PMs morphology between groups. However, the range of PM attachment was increased in the NMR group compared to the IMR group (1.94 ± 0.91 vs. 1.40 ± 0.65, <i>p</i> = 0.004; 2.16 ± 0.88 vs. 1.80 ± 0.80, <i>p</i> = 0.035). Inferior displacement of PMs (OR: 5.629; 95% CI: 1.421, 22.293; <i>p</i> = 0.014) was found to be an independent predictor of less MR improvement after TAVR.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The PMs in the NMR group had no significant morphological tendency, but their attachment range was significantly increased and more toward apical. Inferior displacement of PMs was an independent risk factor for unalleviated MR. <b>Trial Registration:</b> ChiCTR 2000033419.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9650,"journal":{"name":"Catheterization and Cardiovascular Interventions","volume":"108 3","pages":"686-695"},"PeriodicalIF":1.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148267998","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":"Platelet FcɣRIIa Expression Refines Clinical Risk Assessment After Myocardial Infarction","authors":"David J. Schneider,&nbsp;Sean R. McMahon,&nbsp;Dominick J. Angiolillo,&nbsp;Alexander C. Fanaroff,&nbsp;Homam Ibrahim,&nbsp;Patrick K. Hohl,&nbsp;Brett L. Wanamaker,&nbsp;Mark B. Effron,&nbsp;Peter M. DiBattiste,&nbsp;behalf of the investigators","doi":"10.1002/ccd.70691","DOIUrl":"10.1002/ccd.70691","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>In patients with myocardial infarction (MI), quantifying expression of platelet FcɣRIIa (pFCG) stratifies risk of subsequent MI, stroke, and death.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>Assess the prognostic implications of clinical risk alone and in combination with the pFCG test.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Patients (<i>n</i> = 749) were enrolled in a prospective non-interventional trial during hospitalization with type 1 MI (ST elevation and non-ST elevation). Inclusion criteria included ≥ 2 of the following clinical risk factors: age ≥ 65, multi-vessel coronary artery disease, prior MI, chronic kidney disease, or diabetes mellitus. High and low pFCG (quantified by flow cytometry at a core laboratory) were defined by a prespecified threshold. The primary endpoint was the composite of MI, stroke, and death.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Distribution of clinical risk factors was 346 patients (45%) with 2 factors, 272 patients (36%) with 3 factors, and 131 patients (17%) with 4 or 5 factors. A greater number of risk factors was associated with a greater risk of the composite of MI, stroke, and death after 1 year. The event rate with 2 risk factors was 10.2%, with 3 factors it was 14.4%, and with 4/5 factors it was 35.6%. Across all cohorts of clinical risk, the pFCG test identified a higher-risk and a lower-risk cohort.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Both clinical risk and the pFCG test assess prognosis. Results of the pFCG test refine the prognosis defined by clinical risk. The prognostic implications suggest that the pFCG test may be a useful tool to balance ischemic risk with that of bleeding to define treatment strategy.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Trial Registration</h3>\u0000 \u0000 <p>https://clinicaltrials.gov/study/NCT05175261.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9650,"journal":{"name":"Catheterization and Cardiovascular Interventions","volume":"108 3","pages":"662-668"},"PeriodicalIF":1.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ccd.70691","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148267951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pathophysiologic Consequences of Early Coarctation Stenting in a Longitudinal Porcine Model","authors":"Leah M. Gober,&nbsp;Michael A. Stellon,&nbsp;Matt A. Culver,&nbsp;Amy Frenkel,&nbsp;Dana Irrer,&nbsp;Colleen M. Witzenburg,&nbsp;Alejandro Roldán-Alzate,&nbsp;Luke Lamers","doi":"10.1002/ccd.70692","DOIUrl":"10.1002/ccd.70692","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Novel stent technologies offer early intravascular treatment options for coarctation (COA). Mid-to-long-term cardiovascular responses to early COA stent interventions are undefined.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>We studied a porcine model of COA, with and without early stent implantation with serial dilation to adult aortic diameters, aiming to define longitudinal cardiovascular changes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>In total, 18 swine were studied: 6 shams, 6 COA controls (CC), and 6 COA stents (CS). Surgical COA was induced at 2 weeks (4.5 kg) followed by stent implant at 6 weeks, with serial dilations at 12 and 20 weeks (80 kg). All animals were terminally studied at 20 weeks.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Successful stent implantation with serial dilation matching somatic growth occurred in all CS animals with predictable stent performance and elimination of COA. No in-stent stenosis observed. Final stent dimensions equaled the proximal descending aorta (DAo) of shams (16.8 ± 1.5 vs. 17.5 ± 0.8, <i>p</i> = 0.3); however, DAo narrowing (13.3 ± 1.1 mm) just distal to the stent without gradient was created because of stent shortening, and this DAo segment demonstrated decreased vessel wall collagen content. Four of 6 animals developed peri-stent aneurysms treated with covered stents. CS prevented post stenotic dilation and collateralization and resulted in near normalization of catheter-derived hemodynamics. Cardiac MRI documented similar ventricular function, cardiac index, and myocardial tissue characterization between groups. Early COA stenting was associated with increased systemic arterial elastin content.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>In this swine COA model, early stent implants effectively dilated to adult aortic dimensions, prevented blood pressure gradients, collateralization, and adverse myocardial remodeling. Early stenting with serial dilations altered systemic arterial elastin content, and additional stents may be necessary to enlarge the adjacent DAo. Aneurysm formation frequently occurred.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9650,"journal":{"name":"Catheterization and Cardiovascular Interventions","volume":"108 3","pages":"732-742"},"PeriodicalIF":1.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ccd.70692","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148298775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative Outcomes of Transcatheter Versus Surgical Pulmonary Valve Replacement in Adults With Congenital Heart Disease","authors":"Adam Bolad,&nbsp;Mohamed Elganainy,&nbsp;Fawaz Alenezi,&nbsp;Issam Motairek,&nbsp;Islam Bolad","doi":"10.1002/ccd.70718","DOIUrl":"10.1002/ccd.70718","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Pulmonary valve replacement is frequently required in adults with congenital heart disease (CHD). Comparative real-world outcomes between percutaneous transcatheter pulmonary valve implantation (TPVR) and surgical pulmonary valve replacement (SPVR) remain incompletely characterized. We evaluated outcomes and resource utilization for both approaches.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Using the National Inpatient Sample (2016−2022), we identified adult CHD patients undergoing TPVR or SPVR. The primary outcome was in-hospital mortality. Secondary outcomes included acute kidney injury (AKI), infection, mechanical circulatory support (MCS), and any major complication. Survey-weighted logistic regression assessed associations with outcomes, adjusting for demographics, comorbidities, and hospital factors.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Among 11,285 hospitalizations (31% TPVR, 69% SPVR), overall mortality was 1.7%. Unadjusted mortality was lower for TPVR (1.0% vs. 2.0%, <i>p</i> = 0.095). After adjustment, there was no significant difference in mortality between the treatment arms (adjusted OR 2.64, 95% CI 0.92–7.61; <i>p</i> = 0.072). However, SPVR was associated with significantly higher odds of AKI (adjusted OR 5.39, <i>p</i> &lt; 0.001), infection (adjusted OR 5.96, <i>p</i> &lt; 0.001), and MCS requirement (adjusted OR 130.3, <i>p</i> &lt; 0.001). Any major complication occurred in 95.5% of SPVR versus 35.4% of TPVR patients (adjusted OR 81.2, <i>p</i> &lt; 0.001). TPVR was associated with significantly shorter LOS (2.8 vs. 9.7 days; adjusted difference −6.1 days, <i>p</i> &lt; 0.001) and lower hospitalization charges ($209,918 vs. $336,655; <i>p</i> &lt; 0.001).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>In adults with CHD, TPVR was associated with significantly lower complication rates, shorter hospitalization, and reduced cost compared with surgical replacement. While mortality was low for both, substantial differences in morbidity and resource utilization favor TPVR, highlighting the value of transcatheter options.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9650,"journal":{"name":"Catheterization and Cardiovascular Interventions","volume":"108 3","pages":"792-800"},"PeriodicalIF":1.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ccd.70718","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148371661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Outcomes of Different Device Sizing Strategies Using the Newer-Generation WATCHMAN Devices for Closure of Borderline-Sized Left Atrial Appendage","authors":"Motoki Fukutomi,&nbsp;Naoki Saito,&nbsp;Shinya Wada,&nbsp;Mizuho Hoshina,&nbsp;Shunsuke Sasaki,&nbsp;Sunao Nakamura","doi":"10.1002/ccd.70706","DOIUrl":"10.1002/ccd.70706","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>In left atrial appendage closure (LAAC) using newer-generation WATCHMAN FLX/FLX Pro devices, managing borderline-sized LAA within overlapping zones is common, but optimal device sizing strategies remain unknown.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>To compare clinical outcomes and device-related complications between smaller and larger device sizing strategies for borderline-sized LAA.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>This single-center retrospective study evaluated 91 patients undergoing newer-generation WATCHMAN implantation for borderline-sized LAA between September 2021 and June 2024. Follow-up imaging (transesophageal echocardiography and/or cardiac computed tomography angiography) was performed 45-120 days post-LAAC, and one-year clinical outcomes were assessed.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Patients were divided into smaller (<i>n</i> = 36) and larger (<i>n</i> = 55) device groups. The composite primary endpoint (cardiovascular mortality and ischemic stroke) was similar between groups (8.3% vs. 3.6%; hazard ratio [HR], 0.372; 95% CI: 0.074–2.650, <i>p</i> = 0.334). However, the secondary efficacy endpoint-peridevice leak (PDL) 〉3 mm and/or device-related thrombus (DRT)-was significantly higher in the smaller device group at initial follow-up, even after covariate adjustment (13.9% vs. 1.8%; HR, 0.091; 95% CI: 0.009–0.887, <i>p</i> = 0.039). Similar findings were observed at one year.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>For borderline-sized LAA treated with newer-generation WATCHMAN devices, smaller and larger sizing strategies yielded similar one-year clinical outcomes. However, the larger device strategy showed a lower incidence of PDL &gt;3 mm and/or DRT.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9650,"journal":{"name":"Catheterization and Cardiovascular Interventions","volume":"108 3","pages":"743-751"},"PeriodicalIF":1.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148298662","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":"Angiography-Derived Index of Microcirculatory Resistance (Angio-IMR) Is Associated With Doppler-Derived Hyperemic Microvascular Resistance","authors":"Joseph M. O'Brien,&nbsp;Harsh Thakkar,&nbsp;Abdul Rahman Ihdayhid,&nbsp;Andy Yong,&nbsp;Thomas J. Ford,&nbsp;Adam J. Brown,&nbsp;Derek P. Chew,&nbsp;Dennis T. L. Wong","doi":"10.1002/ccd.70699","DOIUrl":"10.1002/ccd.70699","url":null,"abstract":"","PeriodicalId":9650,"journal":{"name":"Catheterization and Cardiovascular Interventions","volume":"108 3","pages":"718-720"},"PeriodicalIF":1.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148298681","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":"Comparison of Radiation Dose Between Dedicated Cardiac and General-Purpose Angiography Systems in Coronary Intervention","authors":"Xiang Zheng","doi":"10.1002/ccd.70711","DOIUrl":"10.1002/ccd.70711","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Coronary intervention contributes substantially to patient radiation exposure. While dedicated cardiac angiography systems are optimized for coronary imaging, general-purpose systems are frequently used due to resource constraints.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>The radiation dose difference between these system types during routine coronary procedures performed by the same operator team remains poorly quantified.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>This retrospective study enrolled 212 patients undergoing coronary procedures by the same operator team, allocated to dedicated cardiac (Philips Azurion 7 M12, <i>n</i> = 106) or general-purpose (Philips Azurion 7 M20, <i>n</i> = 106) systems based on room availability. Procedures were stratified into diagnostic angiography (<i>n</i> = 106) and percutaneous coronary intervention (PCI) (<i>n</i> = 106). Primary endpoints were total dose-area product (DAP) and air kerma (AK). Secondary endpoints included fluoroscopy DAP, acquisition DAP, fluoroscopy time, and estimated magnification mode usage.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Baseline characteristics were balanced between groups. In diagnostic angiography, total DAP was 18.3% lower with the cardiac system (1850 vs. 2260 μGy·m², <i>p</i> = 0.004). In PCI, total DAP was 22.1% lower (3280 vs. 4210 μGy·m², <i>p</i> &lt; 0.001). Acquisition DAP drove the difference in both procedure types, while fluoroscopy DAP and fluoroscopy time showed no significant differences. Estimated magnification mode usage was significantly lower with the cardiac system. Multivariable regression confirmed system type as an independent predictor of total DAP (<i>β</i> = −0.28, <i>p</i> = 0.002).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Dedicated cardiac angiography systems achieve 18%−22% lower radiation doses in coronary procedures compared to general-purpose systems, driven by more efficient acquisition algorithms and associated with reduced magnification mode usage as a behavioral marker, without increased fluoroscopy time.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9650,"journal":{"name":"Catheterization and Cardiovascular Interventions","volume":"108 3","pages":"752-759"},"PeriodicalIF":1.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148311251","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}