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1.
J Interv Cardiol ; 2020: 8948249, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32161516

RESUMO

OBJECTIVES: To demonstrate safety and efficacy of using different generations of softer Amplatzer™ devices for ventricular septal defect (VSD) closure to avoid serious complications at follow-up. BACKGROUND: Transcatheter closure of perimembranous ventricular septal defects (PmVSD) is a well-established procedure; however, it is associated with unacceptable incidence of complete heart block. Great advantages have been achieved by using softer devices for VSD transcatheter closure. The first and second generation of Amplatzer™ occluders (AVP II, ADO, and ADO II) seem to offer a safe and attractive alternative for this procedure. These devices can be delivered using either an arterial (retrograde) or venous (prograde) approach. METHODS AND RESULTS: Patients with congenital PmVSD who underwent transcatheter closure using ADO, ADO II, and AVP II devices were included. Primary end point was to determine efficacy and safety of these generations of devices and to determine the incidence of complications at follow-up (complete AV block and aortic/tricuspid/mitral regurgitation). One hundred and nineteen patients underwent VSD closure at a median age of 5 years (8 months-54 years). During the catheterization, there were only minor complications and at follow-up of 36 ± 25.7 months (up to 99 months), the closure rate was high of 98.3% and freedom from AV block was 100%. CONCLUSIONS: The use of softer Amplatzer™ devices is a good alternative to achieve PmVSD closure safely with no risk of AVB during the procedure or at midterm follow-up.


Assuntos
Cateterismo Cardíaco , Bloqueio Cardíaco , Comunicação Interventricular , Implantação de Prótese , Dispositivo para Oclusão Septal , Cateterismo Cardíaco/instrumentação , Cateterismo Cardíaco/métodos , Pré-Escolar , Segurança de Equipamentos , Feminino , Bloqueio Cardíaco/etiologia , Bloqueio Cardíaco/prevenção & controle , Comunicação Interventricular/fisiopatologia , Comunicação Interventricular/cirurgia , Humanos , Masculino , México/epidemiologia , Implantação de Prótese/efeitos adversos , Implantação de Prótese/métodos , Estudos Retrospectivos , Risco Ajustado , Resultado do Tratamento
2.
Cardiol Young ; 25(3): 491-5, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24555910

RESUMO

BACKGROUND: Percutaneous closure of patent ductus arteriosus has become the treatment of choice in many centres. In patients with large ducts and pulmonary hypertension, transcatheter closure has been achieved with success using the Amplatzer Duct Occluder or even the Amplatzer Muscular Ventricular Septal Defect Occluder. MATERIALS AND METHODS: We present a series of 17 patients with large and hypertensive ductus arteriosus who were treated with an Amplatzer Septal Occluder. The group had 11 female patients (64.7%) and a mean age of 18.6±12.1 years. RESULTS: The haemodynamic and anatomical data are as follows: pulmonary artery systolic pressure 71.3±31.8 mmHg, pulmonary to systemic flow ratio 3.14±1.36, ductal diameter at the pulmonary end 12.5±3.8 mm, and at the aortic end 20.2±7.7 mm; 14 cases (82.3%) had type A ducts. In 11 patients, we began the procedure using a different device - six with duct occluder and five with ventricular septal occluder - and it was changed because of device embolisation in six (35.3%). All septal occluders were delivered successfully. Residual shunt was moderate in six patients (35.3%), mild in eight (47%), trivial in two (11.8%), and no shunt in one (5.9%). Pulmonary systolic pressure decreased to 48.9±10.8 mmHg after occlusion (p=0.0015). Follow-up in 15 patients (88.2%) for 28.4±14.4 months showed complete closure in all cases but one, and continuous decrease of the pulmonary systolic pressure to 31.4±10.5 mmHg. No complications at follow-up have been reported. CONCLUSIONS: The Amplatzer Septal Occluder is a good alternative to percutaneously treat large and hypertensive ductus arteriosus.


Assuntos
Prótese Vascular , Permeabilidade do Canal Arterial/patologia , Permeabilidade do Canal Arterial/terapia , Hipertensão Pulmonar/terapia , Dispositivo para Oclusão Septal , Adolescente , Adulto , Cateterismo Cardíaco/métodos , Criança , Pré-Escolar , Permeabilidade do Canal Arterial/complicações , Permeabilidade do Canal Arterial/diagnóstico , Permeabilidade do Canal Arterial/fisiopatologia , Feminino , Seguimentos , Hemodinâmica , Humanos , Hipertensão Pulmonar/etiologia , Masculino , Resultado do Tratamento , Adulto Jovem
3.
Arch Cardiol Mex ; 93(3): 355-359, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37562141

RESUMO

We present a case of a ruptured right sinus of Valsalva aneurysm to the right atrium that developed global heart failure over the course of three months, and which was completely resolved through cardiac catheterism, placing an occlusive device at the site of the fistula. Its ethology is discussed, as well as the guidelines for clinical diagnosis and treatment.


Se presenta un caso de aneurisma del seno de Valsalva derecho roto a la aurícula derecha, que en el transcurso de tres meses desarrolló insuficiencia cardiaca global y fue resuelto del todo por medio de intervencionismo, colocando un dispositivo oclusor en el sitio de la fístula. Se discute su etología, así como las pautas para el diagnóstico clínico y el tratamiento.


Assuntos
Aneurisma Aórtico , Ruptura Aórtica , Fístula , Seio Aórtico , Humanos , Ruptura Aórtica/cirurgia , Aneurisma Aórtico/complicações , Aneurisma Aórtico/diagnóstico por imagem , Aneurisma Aórtico/cirurgia , Átrios do Coração
4.
Arch Cardiol Mex ; 90(2): 142-147, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32897265

RESUMO

In this paper, we describe our coronary stent (INC-1) design and development, the way that we found the specific characteristics needed for our device including biophysics aspects, design, finite element testing, manufacturing, and mechanic trials, we submitted and animal models experiences. The stent platform was cobalt-chromium L605 (Co-Cr), with struts thickness of 80 µm, balloon expandable. We placed the coronary stent INC-1 on a rabbit and dog models so we can evaluate efficacy and security of the device in relationship to its biomechanical properties including navigation capacity, traceability, symmetric expansion, and safety, as well as endothelial attachment, thrombogenicity, and lack of involvement of secondary branches in these models. We succeeded in efficacy and safety of the device after fluoroscopy-guided implant proving excellent capacity of release system, traceability, fluoroscopic visualization, symmetric expansion, and complete endothelial attach. Furthermore, we obtained a good post-implant balloon withdrawal, functional integrity, and no vascular complications. We observed adequate clinical evolution 3 weeks after the stent implantation.


En esta publicación se describen el diseño y el desarrollo de un stent coronario (INC-1), la forma en que se determinaron las características biofísicas deseadas, el diseño y las pruebas computacionales por elemento finito, su fabricación, así como las pruebas mecánicas a las que se sometió el prototipo y por último las primeras experiencias en modelos animales. La plataforma del stent desarrollado fue de cobalto y cromo L605 (Co-Cr), con struts de 80 µm de grosor, expandido por balón. La colocación del stent coronario INC-1 se realizó en un modelo de conejo y uno canino con el objetivo de evaluar el éxito técnico y de seguridad del stent en relación con las propiedades biomecánicas (capacidad de navegación, maniobrabilidad, expansión simétrica del stent) y de seguridad (fijación a la pared vascular y ausencia de compromiso de ramas secundarias y formación de trombos en el momento de la colocación del stent en el modelo animal). Se obtuvo éxito técnico y de seguridad del stent después del implante guiado por fluoroscopia, lo que demostró adecuada capacidad del sistema liberador, excelente maniobrabilidad, adecuada visualización fluoroscópica, expansión simétrica y fijación completa a la pared vascular, capacidad para retirar el balón desinflado después del implante, e integridad funcional y sin complicaciones vasculares. La evolución clínica fue favorable a tres semanas del seguimiento planeado.


Assuntos
Vasos Coronários/cirurgia , Desenho de Prótese , Stents , Animais , Ligas de Cromo/química , Doença da Artéria Coronariana/cirurgia , Cães , Fluoroscopia , Humanos , Modelos Animais , Coelhos
5.
Arch Cardiol Mex ; 90(2): 163-168, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32459214

RESUMO

In this paper we describe our coronary stent (INC-1) design and development, the way that we found the specific characteristics needed for our device including biophysics aspects, design, finite element testing, manufacturing and mechanic trials we submitted and animal models experiences. The stent platform was cobalt-chromium L605 (Co-Cr), with struts thickness of 80 µm, balloon expandable. We placed the coronary stent INC-1 on a rabbit and dog models so we can evaluate efficacy and security of the device in relationship to its biomechanical properties including navigation capacity, traceability, symmetric expansion and safety. As well as endothelial attachment, thrombogenicity and lack of involvement of secondary branches in these models. We succeeded in efficacy and safety of the device after fluoroscopy-guided implant proving excellent capacity of release system, traceability, fluoroscopic visualization, symmetric expansion and complete endothelial attach. Also, we obtained a good post-implant balloon withdrawal, functional integrity and no vascular complications. We observed adequate clinical evolution 3 weeks after the stent implantation.


En esta publicación se describen el diseño y el desarrollo de un stent coronario (INC-1), la forma en que se determinaron las características biofísicas deseadas, el diseño y las pruebas computacionales por elemento finito, su fabricación, así como las pruebas mecánicas a las que se sometió el prototipo y por último las primeras experiencias en modelos animales. La plataforma del stent desarrollado fue de cobalto y cromo L605 (Co-Cr), con struts de 80 µm de grosor, expandido por balón. La colocación del stent coronario INC-1 se realizó en un modelo de conejo y uno canino con el objetivo de evaluar el éxito técnico y de seguridad del stent en relación con las propiedades biomecánicas (capacidad de navegación, maniobrabilidad, expansión simétrica del stent) y de seguridad (fijación a la pared vascular y ausencia de compromiso de ramas secundarias y formación de trombos en el momento de la colocación del stent en el modelo animal). Se obtuvo éxito técnico y de seguridad del stent después del implante guiado por fluoroscopia, lo que demostró adecuada capacidad del sistema liberador, excelente maniobrabilidad, adecuada visualización fluoroscópica, expansión simétrica y fijación completa a la pared vascular, capacidad para retirar el balón desinflado después del implante, e integridad funcional y sin complicaciones vasculares. La evolución clínica fue favorable a tres semanas del seguimiento planeado.


Assuntos
Doença da Artéria Coronariana/cirurgia , Desenho de Prótese , Stents , Animais , Modelos Animais de Doenças , Cães , Fluoroscopia , Humanos , Coelhos
6.
Arch. cardiol. Méx ; Arch. cardiol. Méx;93(3): 355-359, jul.-sep. 2023. graf
Artigo em Espanhol | LILACS-Express | LILACS | ID: biblio-1513590

RESUMO

Resumen Se presenta un caso de aneurisma del seno de Valsalva derecho roto a la aurícula derecha, que en el transcurso de tres meses desarrolló insuficiencia cardiaca global y fue resuelto del todo por medio de intervencionismo, colocando un dispositivo oclusor en el sitio de la fístula. Se discute su etología, así como las pautas para el diagnóstico clínico y el tratamiento.


Abstract We present a case of a ruptured right sinus of Valsalva aneurysm to the right atrium that developed global heart failure over the course of three months, and which was completely resolved through cardiac catheterism, placing an occlusive device at the site of the fistula. Its ethology is discussed, as well as the guidelines for clinical diagnosis and treatment.

7.
Arch. cardiol. Méx ; Arch. cardiol. Méx;90(2): 142-147, Apr.-Jun. 2020. graf
Artigo em Inglês | LILACS | ID: biblio-1131023

RESUMO

Abstract In this paper, we describe our coronary stent (INC-1) design and development, the way that we found the specific characteristics needed for our device including biophysics aspects, design, finite element testing, manufacturing, and mechanic trials, we submitted and animal models experiences. The stent platform was cobalt-chromium L605 (Co-Cr), with struts thickness of 80 μm, balloon expandable. We placed the coronary stent INC-1 on a rabbit and dog models so we can evaluate efficacy and security of the device in relationship to its biomechanical properties including navigation capacity, traceability, symmetric expansion, and safety, as well as endothelial attachment, thrombogenicity, and lack of involvement of secondary branches in these models. We succeeded in efficacy and safety of the device after fluoroscopy-guided implant proving excellent capacity of release system, traceability, fluoroscopic visualization, symmetric expansion, and complete endothelial attach. Furthermore, we obtained a good post-implant balloon withdrawal, functional integrity, and no vascular complications. We observed adequate clinical evolution 3 weeks after the stent implantation.


Resumen En esta publicación se describen el diseño y el desarrollo de un stent coronario (INC-1), la forma en que se determinaron las características biofísicas deseadas, el diseño y las pruebas computacionales por elemento finito, su fabricación, así como las pruebas mecánicas a las que se sometió el prototipo y por último las primeras experiencias en modelos animales. La plataforma del stent desarrollado fue de cobalto y cromo L605 (Co-Cr), con struts de 80 μm de grosor, expandido por balón. La colocación del stent coronario INC-1 se realizó en un modelo de conejo y uno canino con el objetivo de evaluar el éxito técnico y de seguridad del stent en relación con las propiedades biomecánicas (capacidad de navegación, maniobrabilidad, expansión simétrica del stent) y de seguridad (fijación a la pared vascular y ausencia de compromiso de ramas secundarias y formación de trombos en el momento de la colocación del stent en el modelo animal). Se obtuvo éxito técnico y de seguridad del stent después del implante guiado por fluoroscopia, lo que demostró adecuada capacidad del sistema liberador, excelente maniobrabilidad, adecuada visualización fluoroscópica, expansión simétrica y fijación completa a la pared vascular, capacidad para retirar el balón desinflado después del implante, e integridad funcional y sin complicaciones vasculares. La evolución clínica fue favorable a tres semanas del seguimiento planeado.


Assuntos
Humanos , Animais , Cães , Coelhos , Desenho de Prótese , Stents , Vasos Coronários/cirurgia , Doença da Artéria Coronariana/cirurgia , Fluoroscopia , Ligas de Cromo/química , Modelos Animais
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