LUIZ JUNYA KAJITA

Índice h a partir de 2011
6
Projetos de Pesquisa
Unidades Organizacionais
Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina

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Agora exibindo 1 - 6 de 6
  • article 3 Citação(ões) na Scopus
    Remoção Precoce do Introdutor Arterial Após Intervenção Coronária Percutânea por Via Femoral: Estudo de Segurança e Eficácia
    (2014) ZAGO, Gabriel; TRENTIN, Fabio; PRADO JR., Guy F. A.; SPADARO, Andre Gasparini; SILVA, Expedito Eustáquio Ribeiro da; CAMPOS, Carlos Magalhães; PERIN, Marco Antonio; FALCÃO, Breno de Alencar Araripe; ESTEVES-FILHO, Antonio; KAJITA, Luiz Junya; GAMA, Marcus Nogueira da; MARCHIORI, Gilberto; HORTA, Pedro Eduardo; TAKIMURA, Celso Kiyochi; MARIANI JR., Jose; GALON, Micheli Zanotti; SOARES, Paulo Rogerio; ZALC, Silvio; KALIL-FILHO, Roberto; LEMOS NETO, Pedro Alves
    Introduction: We evaluated the safety and efficacy of protamine administration, guided by activated clotting time, for the immediate femoral arterial sheath removal in patients undergoing percutaneous coronary intervention with unfractionated heparin in order to propose an algorithm for clinical practice. Methods: Prospective study with consecutive patients with stable angina or low-to-moderate risk acute coronary syndrome. We compared patients with an early removal of the arterial sheath to those whose sheath removal was based on a standard protocol. Results: The early removal group (n = 149) had lower access manipulation time than the conventional group (58.3 ± 21.4 minutes vs. 355.0 ± 62.9 minutes; p < 0.01), mainly due to a reduced time to sheath removal (42.3 ± 21.1 minutes vs. 338.6 ± 61.5 minutes; p < 0.01), with no impact on the duration of femoral compression (16.0 ± 3.6 minutes vs. 16.4 ± 5.1 minutes; p = 0.49). There was no stent thrombosis during hospitalization and no significant differences in the incidence of major vascular or bleeding events. The incidence of other bleeding events leading to a prolonged in-hospital length of stay was lower in the early removal group (1.3% vs. 5.1%; p = 0.05). Conclusions: The selective use of an approach for immediate femoral sheath removal, based on activated clotting time guidance and protamine administration, is a safe and effective option in patients undergoing percutaneous coronary intervention by femoral access.
  • article 0 Citação(ões) na Scopus
    Valvuloplastia aórtica por cateter balão na estenose aórtica degenerativa: impacto terapêutico em pacientes em condição clínica in extremis
    (2013) VAHLE, Vitor de Andrade; PINTON, Fábio Augusto; MELO, Eduardo França Pessoa de; BEZERRA, Cristiano Guedes; PERIN, Marco Antônio; ARRIETA, Santiago Raul; KAJITA, Luiz Junya; MARIANI JUNIOR, José; ESTEVES FILHO, Antônio; SILVA, Expedito Eustáquio Ribeiro da; TARASOUTCHI, Flávio; GRINBERG, Max; LEMOS NETO, Pedro Alves
    BACKGROUND: Balloon aortic valvuloplasty (BAV) is used as a palliative strategy in patients who are not eligible for valve replacement surgery, transcatheter aortic valve implantation, or as a bridge to these treatment modalities. The impact of BAV as a salvage procedure for patients in extreme clinical conditions (in extremis) is unknown. METHODS: Patients with severe degenerative aortic stenosis undergoing BAV between July 2008 and January 2013 were evaluated. Patients were divided into the in-extremis group (defined by the presence of two or more of the following organ dysfunctions: mechanical ventilation, hemodynamic instability, dialysis, coagulopathy or severe hepatic dysfunction) and the control group, which included the remaining patients. RESULTS: A total of 19 patients underwent BAV. The clinical condition in-extremis was present in 42.1% of them. Patients from the in-extremis group had a higher EUROSCORE II (41.1 ± 24.7 vs. 15.9 ± 14.0; P = 0.001) and LV ejection fraction lower than the control group (33.9 ± 17.3% vs. 49.0 ± 12.5; P = 0.04). None of the patients in the in-extremis group survived past the hospitalization period, whereas the control group mortality was 27.3% (P < 0.01). CONCLUSIONS: BAV has an unfavorable result in patients with severe degenerative aortic stenosis with two or more organ dysfunctions, that is, patients in extremis.
  • article 6 Citação(ões) na Scopus
    Superdominant Right Coronary Artery with Absence of Left Circumflex and Anomalous Origin of the Left Anterior Descending Coronary from the Right Sinus: An Unheard Coronary Anomaly Circulation
    (2015) OLIVEIRA, Marcos Danillo Peixoto; FAZZIO, Fernando Roberto de; MARIANI JUNIOR, Jose; CAMPOS, Carlos M.; KAJITA, Luiz Junya; RIBEIRO, Expedito E.; LEMOS, Pedro Alves
    Coronary artery anomalies are congenital changes in their origin, course, and/or structure. Most of them are discovered as incidental findings during coronary angiographic studies or at autopsies. We present herein the case of a 70-year-old man with symptomatic severe aortic valvar stenosis whose preoperative coronary angiogram revealed a so far unreported coronary anomaly circulation pattern.
  • conferenceObject
    Late clinical outcomes of diabetic patients treated with a novel third-generation drug-eluting stent: Highlights from Inspiron registry
    (2017) PRADO JR., Guy; CAMPOS, Carlos; SELEME, Vinicius; FUNDAO, Nelson; FILHO, Antonio E.; TAKIMURA, Celso; MARCHIORI, Gilberto; MARIANI JR., Jose; KAJITA, Luiz; HORTA, Pedro; GAMA, Marcus; ZALC, Silvio; SOARES, Paulo; RIBEIRO, Expedito; LEMOS, Pedro A.
  • conferenceObject
    A New Thin-Strut, Low-Dose, Sirolimus-Eluting Stent With Abluminal-Only Biodegradable Polymeric Coating: Safety and Efficacy Clinical Performance of the Inspiron (TM) Stent in High-Risk Patients
    (2014) PRADO JR., Guy F. A.; MELO, Pedro Henrique Craveiro; TAKIMURA, Celso; ALVES, Gustavo M.; GUIMARAES, Welingson V.; MARIANI JR., Jose; KAJITA, Luiz J.; CAMPOS, Carlos M.; FALCAO, Breno A.; GAMA, Marcus N.; MARCHIORI, Gilberto; ESTEVES-FILHO, Antonio; HORTA, Pedro E.; GALON, Micheli Z.; SPADARO, Andre G.; ZALC, Silvio; SOARES, Paulo R.; PERIN, Marco A.; RIBEIRO, Expedito; KALIL-FILHO, Roberto; LEMOS, Pedro A.
  • article
    Clinical performance of a novel ultrathin strut, low-dose, sirolimus-eluting stent with abluminal-only biodegradable polymeric coating for patients undergoing percutaneous coronary intervention in the daily practice
    (2015) PRADO JR., Guy F. A.; RIBEIRO, Expedito E.; MELO, Pedro H. M. C.; PINTON, Fabio A.; ESTEVES-FILHO, Antonio; TAKIMURA, Celso K.; MARIANI JR., Jose; KAJITA, Luiz J.; MARCHIORI, Gilberto; FALCAO, Breno de Alencar Araripe; GALON, Micheli Z.; SOARES, Paulo R.; ZALC, Silvio; LEMOS, Pedro A.
    Background: The present study aimed to evaluate the clinical performance, in the daily practice of a busy catheterization laboratory, of a novel drug-eluting stent (DES) built with an ultra-thin-strut metallic platform, eluting sirolimus at low doses, abluminal coated with biodegradable polymers, and mounted in a low-compliant delivery system. Methods: Prospective, single-arm study, comprising all consecutive patients undergoing percutaneous coronary intervention (PCI) with the Inspiron (TM) sirolimus-eluting stent (SES) (Scitech, Aparecida de Goiania, Brazil). The primary endpoint was the occurrence of major adverse cardiac events (MACE) [cardiac death, non-PCI related myocardial infarction (MI), or target vessel revascularization (TVR)]. Results: A total of 470 patients were included, from which 51.3% were diabetics, 33.8% had triple-vessel disease, 15.3% had heart failure, 38.9% had at least one bifurcation treated, 19.8% were treated for a bare metal stent restenosis, and 61.9% had at least one type C lesion; one or more of these features were found in 96.0%. At 300 days, the rate target lesion revascularization was 5.4% and the rate of MACE was 8.1%. The incidence of definite or probable stent thrombosis was 0.4%, with no cases between 30 and 300 days. Conclusions: The novel stent is associated with excellent short and mid-term clinical outcomes in patients treated with PCI in the daily practice.