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1.
J Am Coll Cardiol ; 83(19): 1827-1837, 2024 May 14.
Article in English | MEDLINE | ID: mdl-38593943

ABSTRACT

BACKGROUND: Cardiovascular disease (CVD) is the leading cause of death worldwide, but prevalence estimates in former professional athletes are limited. OBJECTIVES: HUDDLE (Heart Health: Understanding and Diagnosing Disease by Leveraging Echocardiograms) aimed to raise awareness and estimate the prevalence of CVD and associated risk factors among members of the National Football League (NFL) Alumni Association and their families through education and screening events. METHODS: HUDDLE was a multicity, cross-sectional study of NFL alumni and family members aged 50 years and older. Subjects reported their health history and participated in CVD education and screening (blood pressure, electrocardiogram, and transthoracic echocardiogram [TTE] assessments). Phone follow-up by investigators occurred 30 days postscreening to review results and recommendations. This analysis focuses on former NFL athletes. RESULTS: Of 498 participants screened, 57.2% (N = 285) were former NFL players, the majority of whom were African American (67.6%). The prevalence of hypertension among NFL alumni was estimated to be 89.8%, though only 37.5% reported a history of hypertension. Of 285 evaluable participants, 61.8% had structural cardiac abnormalities by TTE. Multivariable analysis showed that hypertension was a significant predictor of clinically relevant structural abnormalities on TTE. CONCLUSIONS: HUDDLE identified a large discrepancy between participant self-awareness and actual prevalence of CVD and risk factors, highlighting a significant opportunity for population health interventions. Structural cardiac abnormalities were observed in most participants and were independently predicted by hypertension, affirming the role of TTE for CVD screening in this population aged older than 50 years. (Heart Health: Understanding and Diagnosing Disease by Leveraging Echocardiograms [HUDDLE]; NCT05009589).


Subject(s)
Cardiovascular Diseases , Football , Humans , Male , Middle Aged , Prevalence , Cardiovascular Diseases/epidemiology , Cross-Sectional Studies , Risk Factors , United States/epidemiology , Aged , Female , Athletes/statistics & numerical data , Echocardiography
2.
Curr Probl Cardiol ; 49(1 Pt A): 101941, 2024 Jan.
Article in English | MEDLINE | ID: mdl-37454826

ABSTRACT

Severe aortic stenosis is a common valvular heart disease associated with significant mortality and morbidity. Transcatheter aortic valve replacement (TAVR) is an effective treatment for this condition. Less data is available regarding functional and quality-of-life outcomes in patients with severe, low-gradient aortic stenosis following TAVR. This single-center, retrospective study compared changes in New York Heart Association (NYHA) class and Kansas City Cardiomyopathy Questionnaire (KCCQ) scores at 30 days and 1 year in patients with 3 variants of severe, low-gradient aortic stenosis following TAVR. Secondary outcomes included 1-year major adverse cardiovascular event. A total of 170 patients were included. All 3 low-gradient variants had significant improvement in NYHA class and KCCQ overall scores at 30 days and 1 year. There were no significant differences in KCCQ overall scores between the 3 groups and no significant differences in secondary outcomes. Patients with low-gradient aortic stenosis experienced significant improvements in functional and quality-of-life outcomes following TAVR.


Subject(s)
Aortic Valve Stenosis , Transcatheter Aortic Valve Replacement , Humans , Quality of Life , Transcatheter Aortic Valve Replacement/adverse effects , Health Status , Retrospective Studies , Aortic Valve Stenosis/surgery , Treatment Outcome , Aortic Valve/surgery , Risk Factors , Severity of Illness Index
3.
J Am Heart Assoc ; 12(13): e029451, 2023 07 04.
Article in English | MEDLINE | ID: mdl-37345798

ABSTRACT

Background Results from multiple clinical trials support patent foramen ovale closure after cryptogenic stroke in select patients, but it remains unclear how new data and updated professional society guidelines have impacted clinical practice. Here, we aimed to compare how stroke neurologists and interventional cardiologists approach patients with cryptogenic stroke with patent foramen ovale and how critical anatomic and clinical factors influence decision making. Methods and Results An electronic survey was administered to 1556 vascular neurologists and 1057 interventional cardiologists throughout the United States. The survey addressed factors such as patient age, preclosure workup, and postclosure antithrombotics. Clinical vignettes highlighted critical variables and used a 5-point Likert scale to assess the providers' level of support for closure. There were 491 survey responses received from 301 (of 1556) vascular neurologists and 190 (of 1057) interventional cardiologists, with an overall response rate of 19%. Vascular neurologists were more likely to recommend against closure on the basis of older age (P<0.001). Interventional cardiologists are more supportive of closure across a range of clinical vignettes, including a very carefully selected patient with cryptogenic stroke (P<0.001), a patient with a high-risk alternative stroke cause (P<0.001), and a range of cases highlighting clinical variables where data are lacking. The majority of interventionalists (88%) seek neurology consultation before pursuing patent foramen ovale closure. Conclusions lnterventional cardiologists are more likely than vascular neurologists to support patent foramen ovale closure across a range of situations. This emphasizes the importance of collaboration and shared decision making, but also reveals an opportunity for professional society educational outreach.


Subject(s)
Cardiologists , Foramen Ovale, Patent , Ischemic Stroke , Septal Occluder Device , Stroke , Humans , Foramen Ovale, Patent/complications , Foramen Ovale, Patent/therapy , Neurologists , Stroke/etiology , Stroke/prevention & control , Ischemic Stroke/complications , Secondary Prevention/methods , Treatment Outcome , Septal Occluder Device/adverse effects
5.
JACC Cardiovasc Interv ; 16(11): 1384-1400, 2023 06 12.
Article in English | MEDLINE | ID: mdl-36990858

ABSTRACT

Exclusion of the left atrial appendage to reduce thromboembolic risk related to atrial fibrillation was first performed surgically in 1949. Over the past 2 decades, the field of transcatheter endovascular left atrial appendage closure (LAAC) has rapidly expanded, with a myriad of devices approved or in clinical development. The number of LAAC procedures performed in the United States and worldwide has increased exponentially since the Food and Drug Administration approval of the WATCHMAN (Boston Scientific) device in 2015. The Society for Cardiovascular Angiography & Interventions (SCAI) has previously published statements in 2015 and 2016 providing societal overview of the technology and institutional and operator requirements for LAAC. Since then, results from several important clinical trials and registries have been published, technical expertise and clinical practice have matured over time, and the device and imaging technologies have evolved. Therefore, SCAI prioritized the development of an updated consensus statement to provide recommendations on contemporary, evidence-based best practices for transcatheter LAAC focusing on endovascular devices.


Subject(s)
Atrial Appendage , Atrial Fibrillation , Stroke , Humans , Stroke/etiology , Stroke/prevention & control , Atrial Appendage/diagnostic imaging , Treatment Outcome , Atrial Fibrillation/diagnostic imaging , Atrial Fibrillation/therapy , Angiography
6.
Heart Rhythm ; 20(5): e1-e16, 2023 05.
Article in English | MEDLINE | ID: mdl-36990925

ABSTRACT

Exclusion of the left atrial appendage to reduce thromboembolic risk related to atrial fibrillation was first performed surgically in 1949. Over the past 2 decades, the field of transcatheter endovascular left atrial appendage closure (LAAC) has rapidly expanded, with a myriad of devices approved or in clinical development. The number of LAAC procedures performed in the United States and worldwide has increased exponentially since the Food and Drug Administration approval of the WATCHMAN (Boston Scientific) device in 2015. The Society for Cardiovascular Angiography & Interventions (SCAI) has previously published statements in 2015 and 2016 providing societal overview of the technology and institutional and operator requirements for LAAC. Since then, results from several important clinical trials and registries have been published, technical expertise and clinical practice have matured over time, and the device and imaging technologies have evolved. Therefore, SCAI prioritized the development of an updated consensus statement to provide recommendations on contemporary, evidence-based best practices for transcatheter LAAC focusing on endovascular devices.


Subject(s)
Atrial Appendage , Atrial Fibrillation , Stroke , Thromboembolism , Humans , Stroke/etiology , Stroke/prevention & control , Atrial Appendage/diagnostic imaging , Atrial Appendage/surgery , Atrial Fibrillation/complications , Atrial Fibrillation/diagnosis , Atrial Fibrillation/surgery , Angiography , Treatment Outcome
7.
Int J Cardiol ; 370: 143-148, 2023 Jan 01.
Article in English | MEDLINE | ID: mdl-36356694

ABSTRACT

Current estimates suggest that a patent foramen ovale (PFO) may exist in up to 25% of the general population and is a potential risk factor for embolic, ischemic stroke. PFO closure complications include bleeding, need for procedure-related surgical intervention, pulmonary emboli, device malpositioning, new onset atrial arrhythmias, and transient atrioventricular block. Rates of PFO closure complications at a national level in the Unites States remain unknown. To address this, we performed a contemporary nationwide study using the 2016 and 2017 Nationwide Readmissions Database (NRD) to identify patterns of readmissions after percutaneous PFO closure. In conclusion, our study showed that following PFO closure, the most common complications were atrial fibrillation/atrial flutter followed by acute heart failure syndrome, supraventricular tachycardia and acute myocardial infarction.


Subject(s)
Atrial Fibrillation , Atrial Flutter , Foramen Ovale, Patent , Septal Occluder Device , Stroke , Humans , United States/epidemiology , Stroke/etiology , Stroke/complications , Cardiac Catheterization/adverse effects , Foramen Ovale, Patent/diagnosis , Foramen Ovale, Patent/epidemiology , Foramen Ovale, Patent/surgery , Atrial Fibrillation/epidemiology , Risk Factors , Treatment Outcome , Septal Occluder Device/adverse effects , Recurrence
8.
J Am Heart Assoc ; 11(14): e025598, 2022 07 19.
Article in English | MEDLINE | ID: mdl-35861812

ABSTRACT

Background Evidence from randomized trials and updated professional society guidelines supports patent foramen ovale (PFO) closure after cryptogenic stroke in select patients. It is unclear how this has been integrated into real-world practice, so we aimed to compare practice patterns between cardiologists and neurologists. Methods and Results In March of 2021, a survey of cardiologists and neurologists who work or previously trained at the University of Pennsylvania Health System assessed practice preferences with respect to PFO closure after stroke. Clinical vignettes isolated specific variables of interest and used a 5-point Likert scale to assess the level of support for PFO closure. Stroke neurologists and interventional cardiologists were compared by Wilcoxon-Mann-Whitney tests. Secondarily, Kruskal-Wallis tests compared stroke neurologists, general neurologists, interventional cardiologists, and general cardiologists. We received 106 responses from 182 survey recipients (31/31 stroke neurologists, 38/46 interventional cardiologists, 20/30 general neurologists, and 17/77 general cardiologists). A similar proportion of stroke neurologists and interventional cardiologists favored PFO closure in a young patient with cryptogenic stroke, 88% and 87%, respectively (P=0.54). Interventionalists were more likely than stroke neurologists to support closure in the context of an alternative high-risk stroke mechanism, 14% and 0%, respectively (P=0.003). Stroke neurologists were more likely to oppose closure on the basis of older age (P=0.01). Conclusions There are key differences between how neurologists and cardiologists approach PFO closure after stroke, particularly when interpreting the stroke etiology and when considering closure beyond the scope of prior trials; this underscores the importance of collaboration between cardiologists and neurologists.


Subject(s)
Foramen Ovale, Patent , Ischemic Stroke , Cardiac Catheterization , Cardiologists , Cardiology , Foramen Ovale, Patent/complications , Foramen Ovale, Patent/therapy , Humans , Ischemic Stroke/etiology , Neurologists , Neurology , Recurrence , Secondary Prevention , Septal Occluder Device , Stroke/diagnosis , Stroke/etiology , Stroke/therapy , Treatment Outcome
9.
JACC Cardiovasc Interv ; 15(7): 741-750, 2022 04 11.
Article in English | MEDLINE | ID: mdl-35393108

ABSTRACT

OBJECTIVES: The aim of this study was to report 1-year clinical outcomes following commercial transcatheter left atrial appendage occlusion (LAAO) in the United States. BACKGROUND: The National Cardiovascular Data Registry LAAO Registry was initiated to meet a condition of Medicare coverage and allow the assessment of clinical outcomes. The 1-year rates of thromboembolic events after transcatheter LAAO in such a large cohort of "real-world" patients have not been previously reported. METHODS: Patients entered into the National Cardiovascular Data Registry LAAO Registry for a Watchman procedure between January 1, 2016, and December 31, 2018, were included. The primary endpoint was ischemic stroke. Key secondary endpoints included the rate of ischemic stroke or systemic embolism, mortality, and major bleeding. Major bleeding was defined as any bleeding requiring hospitalization, and/or causing a decrease in hemoglobin level > 2g/dL, and/or requiring blood transfusion that was not hemorrhagic stroke. The Kaplan-Meier method was used for 1-year estimates of cumulative event rates. RESULTS: The study population consisted of 36,681 patients. The mean age was 76.0 ± 8.1 years, the mean CHA2DS2-VASc score was 4.8 ± 1.5, and the mean HAS-BLED score was 3.0 ± 1.1. Prior stroke was present in 25.5%, clinically relevant bleeding in 69.5%, and intracranial bleeding in 11.9%. Median follow-up was 374 days (IQR: 212-425 days). The Kaplan-Meier-estimated 1-year rate of ischemic stroke was 1.53% (95% CI: 1.39%-1.69%), the rate of ischemic stroke or systemic embolism was 2.19% (95% CI: 2.01%-2.38%), and the rate of mortality was 8.52% (95% CI: 8.19%-8.87%). The 1-year estimated rate of major bleeding was 6.93% (95% CI: 6.65%-7.21%). Most bleeding events occurred between discharge and 45 days following the procedure. CONCLUSIONS: This study characterizes important outcomes in a national cohort of patients undergoing transcatheter LAAO in the United States. Clinicians and patients can integrate these data in shared decision making when considering this therapy.


Subject(s)
Atrial Appendage , Atrial Fibrillation , Ischemic Stroke , Stroke , Aged , Aged, 80 and over , Atrial Appendage/diagnostic imaging , Atrial Fibrillation/diagnosis , Atrial Fibrillation/epidemiology , Atrial Fibrillation/therapy , Hemorrhage , Humans , Medicare , Stroke/epidemiology , Stroke/etiology , Treatment Outcome , United States/epidemiology
11.
J Am Heart Assoc ; 10(21): e022274, 2021 11 02.
Article in English | MEDLINE | ID: mdl-34668395

ABSTRACT

The majority of embolic strokes in patients with nonvalvular atrial fibrillation are caused by thrombi in the left atrial appendage. It is projected that strokes related to atrial fibrillation will markedly increase in the future unless effective mitigation strategies are implemented. Systemic anticoagulation has been known to be highly effective in reducing stroke risk in patients with atrial fibrillation. However, bleeding complications and nonadherence are barriers to effective anticoagulation therapy. Surgical and percutaneous left atrial appendage occlusion devices are nonpharmacologic strategies to mitigate the challenges of drug therapy. We present a contemporary review of left atrial appendage occlusion for stroke prevention in nonvalvular atrial fibrillation. A thorough review of the history of surgical and percutaneous left atrial appendage occlusion devices, recent trials, and US Food and Drug Administration milestones of current left atrial appendage occlusion devices are discussed.


Subject(s)
Atrial Appendage , Atrial Fibrillation , Stroke , Anticoagulants/therapeutic use , Atrial Appendage/surgery , Atrial Fibrillation/complications , Atrial Fibrillation/therapy , Hemorrhage , Humans , Stroke/etiology , Stroke/prevention & control
12.
Eur Heart J Case Rep ; 5(8): ytab228, 2021 Aug.
Article in English | MEDLINE | ID: mdl-34514300

ABSTRACT

BACKGROUND: Vein sclerosing therapy for varicose veins remains an extremely popular procedure. Cerebrovascular accidents can be a serious complication. A patent foramen ovale (PFO) can act as a conduit to the arterial circulation, which could explain the adverse neurologic consequence of this procedure. This case provides pathologic evidence of this concept. CASE SUMMARY: A 66-year-old female presented with syncope after undergoing varicose vein sclerotherapy. A computed tomography angiography of the head and neck in the emergency room revealed an occluded right distal M1 middle cerebral artery. Clot retrieval was performed with final pathology revealing amorphous material consistent with an exogenous agent, polidocanol foam, which was used for the patient's vein sclerotherapy. A transthoracic echocardiogram and transoesophageal echocardiogram showed a PFO, which was ultimately closed percutaneously. DISCUSSION: In a quarter of the population, lack of closure of the intrauterine interatrial shunt leads to the existence of a PFO. This direct communication between the atria provides an anatomical conduit for paradoxical emboli and eventually infarction of affected tissues. While a paradoxical embolism is an uncommon cause of acute arterial occlusion, it can have catastrophic sequelae. Historically, the presence of an arterial thrombus from the venous circulation has been difficult to establish unless the thrombus is visualized in transit through a PFO. Complications from vein sclerotherapy have been reported in the literature and include transient ischaemic attacks and strokes, however, this is the first case to provide pathological proof of a paradoxical embolism, which ultimately resulted in percutaneous closure of the PFO.

13.
J Invasive Cardiol ; 33(6): E407-E411, 2021 06.
Article in English | MEDLINE | ID: mdl-33771937

ABSTRACT

BACKGROUND: Acute right ventricular (RV) failure is challenging to treat and mechanical circulatory support devices are limited. The TandemHeart ProtekDuo (THPD; TandemLife) is a novel percutaneous RV assist device that can provide 4.0 liters per minute of blood flow through venovenous extracorporeal life support. It allows venous drainage from the right atrium and reinfusion of blood into the main pulmonary artery via internal jugular vein access. We aim to provide real-world insight into disease characteristics resulting in the use of THPD for mechanical support and enhance knowledge of best practice regarding clinical management weaning and removal/exit strategies. METHODS: We retrospectively collected data of consecutive patients who received a THPD device at our center for acute RV failure between August 2015 and February 2018. RESULTS: Eleven patients were diagnosed with acute RV failure and required placement of THPD. The hospital length of stay ranged from 12 to 223 days. The average length of support ranged from 11 to 154 days. We observed complications such as stroke (18.2%), sepsis (63.6%), massive gastrointestinal bleed (45.5%), and heparin-induced thrombocytopenia (54.5%). These patients received on average 85 units of blood products. Survival was 82% at 30 days and 72% at 180 days. Six of the patients were successfully weaned from the THPD devices and 1 patient required venovenous extracorporeal life support. CONCLUSIONS: This real-world experience, despite high morbidity, continues to suggest benefits of THPD for patients with severe acute RV failure.


Subject(s)
Heart Failure , Heart-Assist Devices , Ventricular Dysfunction, Right , Heart Failure/therapy , Heart-Assist Devices/adverse effects , Humans , Retrospective Studies , Treatment Outcome
14.
JACC Cardiovasc Interv ; 14(1): 97-100, 2021 01 11.
Article in English | MEDLINE | ID: mdl-33413871

ABSTRACT

The field of interventional cardiology has expanded rapidly. As a result, four evolving areas have evolved - peripheral vascular interventions, structural heart interventions, adult congenital heart intervention, and chronic total occlusion. The complexity of these procedures and the number of devices available has grown rapidly. In addition, the professional and public expectations of procedural success and of minimizing case-avoidance have also grown. Specific issues include volume-outcome relationships, maintaining currency and proficiency, accessibility to specialized procedures, and the need to maintain a fundamental level of expertise in acute coronary interventions.


Subject(s)
Cardiac Surgical Procedures , Cardiologists , Adult , Humans , Patient Selection , Treatment Outcome
16.
Am J Cardiol ; 135: 99-104, 2020 11 15.
Article in English | MEDLINE | ID: mdl-32866447

ABSTRACT

Left atrial appendage occlusion is utilized as a second line therapy to long-term oral anticoagulation in appropriately selected patients with atrial fibrillation (AF). We examined the feasibility of cryoballoon (CB) pulmonary vein isolation (PVI) subsequent to Watchman device implantation. The study prospectively identified patients with Watchman devices (>90 days old) who underwent CB-PVI ablation between 2018 and 2019. Twelve consecutive patients (male 50%; mean age 71 ± 9 years; CHA2DS2-VASc score 3.4 ± 1.1) underwent CB-PVI procedures after Watchman device implantation (mean 182 ± 82 days). Acute PVI was achieved in 100% of patients. All patients had evidence of complete (n = 9) or partial (n = 3) endothelialization of the surface of the Watchman device with conductive tissue properties demonstrated during electrophysiologic testing. There were no major procedure-related complications including death, stroke, pericardial effusion, device dislodgment, device thrombus, or new or increasing peri-device leak. Mean peri-device leak size (45-day postimplant: 0.06 ± 0.09 mm vs Post-PVI: 0.04 ± 0.06 mm; p = 0.61) remained unchanged. Two patients had recurrence of AF after the 90-day blanking period (13.2 ± 6.6 months). One patient underwent a redo ablation procedure for recurrent AF. This pilot study suggests the potential feasibility of CB-PVI ablation in patients with chronic Watchman left atrial appendage occlusion devices. Larger prospective studies are needed to confirm the clinical efficacy and safety of this approach.


Subject(s)
Atrial Appendage/physiopathology , Atrial Fibrillation/surgery , Catheter Ablation/methods , Cryosurgery , Pulmonary Veins/surgery , Septal Occluder Device , Aged , Aged, 80 and over , Cryosurgery/instrumentation , Electrophysiological Phenomena , Feasibility Studies , Female , Humans , Male , Middle Aged , Pilot Projects , Prospective Studies
17.
Eur Heart J Case Rep ; 4(4): 1-4, 2020 Aug.
Article in English | MEDLINE | ID: mdl-32974486

ABSTRACT

BACKGROUND: Transcatheter left atrial appendage occlusion (LAAO) using Watchman device has been demonstrated to be efficacious in decreasing stroke risk in patients with atrial fibrillation who are not suitable for long-term anticoagulation. Residual leaks are frequently encountered following LAAO procedures and their clinical implications and optimal management remain controversial. CASE SUMMARY: In this report, we describe a case of peri-Watchman device leak treated successfully with percutaneous device closure using an Amplatzer Vascular Plug II device. DISCUSSION: The clinical implications of peri-device leaks remain controversial with general consensus to continue anticoagulation along with serial imaging for larger leaks (>5 mm). As an alternative strategy, percutaneous closure of these leaks has been attempted in hope of avoiding anticoagulation and minimizing the risk of stroke and should be studied further.

18.
Catheter Cardiovasc Interv ; 96(6): 1258-1265, 2020 11.
Article in English | MEDLINE | ID: mdl-32840956

ABSTRACT

The society for cardiovascular angiography and interventions (SCAI) think tank is a collaborative venture that brings together interventional cardiologists, administrative partners, and select members of the cardiovascular industry community for high-level field-wide discussions. The 2020 think tank was organized into four parallel sessions reflective of the field of interventional cardiology: (a) coronary intervention, (b) endovascular medicine, (c) structural heart disease, and (d) congenital heart disease (CHD). Each session was moderated by a senior content expert and co-moderated by a member of SCAI's emerging leader mentorship program. This document presents the proceedings to the wider cardiovascular community in order to enhance participation in this discussion, create additional dialogue from a broader base, and thereby aid SCAI and the industry community in developing specific action items to move these areas forward.


Subject(s)
Cardiac Catheterization/trends , Cardiology/trends , Coronary Angiography/trends , Heart Diseases/diagnostic imaging , Heart Diseases/therapy , Percutaneous Coronary Intervention/trends , Diffusion of Innovation , Heart Diseases/physiopathology , Humans
20.
Catheter Cardiovasc Interv ; 96(4): 878-888, 2020 10 01.
Article in English | MEDLINE | ID: mdl-32294303

ABSTRACT

BACKGROUND: Polymer-based bioresorbable scaffolds (PBBS) have been assessed for coronary revascularization with mixed outcomes. Few studies have targeted pediatric-specific scaffolds. We sought to assess safety, efficacy, and short-term performance of a dedicated drug-free PBBS pediatric scaffold compared to a standard low-profile bare metal stent (BMS) in central and peripheral arteries of weaned piglets. METHODS: Forty-two devices (22 Elixir poly-L-lactic-acid-based pediatric bioresorbable scaffolds [BRS] [6 × 18 mm] and 20 control BMS Cook Formula 418 [6 × 20 mm]) were implanted in the descending aorta and pulmonary arteries (PAs) of 14 female Yucatan piglets. Quantitative measurements were collected on the day of device deployment and 30 and 90 days postimplantation to compare device patency and integrity. RESULTS: The BRS has a comparable safety profile to the BMS in the acute setting. Late lumen loss (LLL) and percent diameter stenosis (%DS) were not significantly different between BRS and BMS in the PA at 30 days. LLL and %DS were greater for BRS versus BMS in the aorta at 30 days postimplantation (LLL difference: 0.96 ± 0.26; %DS difference: 16.15 ± 4.51; p < .05). At 90 days, %DS in the aortic BRS was less, and PA BRS LLL was also less than BMS. Histomorphometric data showed greater intimal proliferation and area stenosis in the BRS at all time points and in all vessels. CONCLUSIONS: A dedicated PBBS pediatric BRS has a favorable safety profile in the acute/subacute setting and demonstrates characteristics that are consistent with adult BRSs.


Subject(s)
Aorta, Abdominal/pathology , Endovascular Procedures/instrumentation , Metals , Polyesters , Pulmonary Artery/pathology , Stents , Angiography , Animals , Animals, Newborn , Aorta, Abdominal/diagnostic imaging , Cell Proliferation , Constriction, Pathologic , Endovascular Procedures/adverse effects , Feasibility Studies , Female , Materials Testing , Neointima , Prosthesis Design , Pulmonary Artery/diagnostic imaging , Swine , Swine, Miniature , Time Factors , Ultrasonography, Interventional
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