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2.
JACC Case Rep ; 28: 102102, 2023 Dec 20.
Artigo em Inglês | MEDLINE | ID: mdl-38204559

RESUMO

Recurrent in-stent restenosis of the coronary artery is a rare but intractable problem. In this situation, coronary arteritis should be considered as an etiology. This case highlights the use of immunosuppressive drugs, including tocilizumab, and follow-up F-18-fluorodeoxyglucose positron emission tomography/computed tomography to break the vicious circle of recurrent stenosis caused by isolated coronary arteritis of unknown cause.

3.
CJC Open ; 3(6): 714-722, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34169250

RESUMO

BACKGROUND: Several recent reports have shown that a stentless interventional procedure using rotational atherectomy followed by drug-coated balloon (DCB) treatment (RA/DCB) is a potent revascularization therapy for calcified de novo lesions even in the new-generation drug-eluting stent era; however, the role of the RA/DCB procedure for noncalcified de novo lesions remains unclear. METHODS: A total of 47 consecutive patients (53 lesions) who underwent RA/DCB for coronary de novo lesions were enrolled. According to the presence or absence of severe calcification at target lesions on fluoroscopy, the 47 patients were divided into the noncalcified cases (n = 12) and the calcified cases (n = 35), and the 53 lesions were divided into the noncalcified lesions (n = 14) and the calcified lesions (n = 39). RESULTS: The noncalcified cases tended to have a higher frequency of bleeding risk and had a significantly lower prevalence of dual antiplatelet therapy compared with the calcified cases. The main lesion-specific factors for the RA/DCB procedure among the noncalcified lesions were presence of left circumflex coronary artery ostial lesion. The final burr size, DCB diameter used, and angiographic success rate did not significantly differ between the 2 groups. The noncalcified lesions had a larger reference diameter and a shorter lesion length than the calcified lesions, whereas acute gain and late lumen loss did not differ between the 2 groups. Nine-month clinical outcomes were comparable between the 2 groups. CONCLUSIONS: Under drug-eluting stent-unsuitable clinical or lesion conditions, acute and midterm outcomes of RA/DCB for noncalcified de novo lesions might be comparable with those for calcified de novo lesions.


CONTEXTE: Plusieurs rapports récents ont montré qu'une revascularisation sans endoprothèse effectuée par athérectomie rotationnelle (AR) suivie d'un traitement par ballonnet médicamenté (BM) constitue une méthode efficace pour traiter les nouvelles lésions calcifiées, même à l'ère des endoprothèses médicamentées de nouvelle génération; on ne connaît toutefois pas bien l'utilité de l'intervention par AR et BM en cas de nouvelles lésions non calcifiées. MÉTHODOLOGIE: Au total, 47 patients consécutifs (53 lésions) ayant subi une intervention par AR et BM pour traiter de nouvelles lésions coronariennes ont été admis dans l'étude. Ces 47 patients ont été répartis en deux groupes, en fonction de l'absence (n = 12) ou de la présence (n = 35) de lésions . cibles sévèrement calcifiées observées à la fluoroscopie. Les 53 lésions ont aussi été réparties en deux groupes : lésions non calcifiées (n = 14) et lésions calcifiées (n = 39). RÉSULTATS: Les patients n'ayant pas de lésion calcifiée étaient généralement plus susceptibles de présenter des saignements et significativement moins nombreux à être sous bithérapie antiplaquettaire, comparativement aux patients ayant des lésions calcifiées. Dans le cas des lésions non calcifiées, la principale caractéristique justifiant une AR et un traitement par BM était la présence d'une lésion ostiale du rameau circonflexe de l'artère coronaire gauche. La taille de la dernière fraise utilisée, le diamètre du BM utilisé et le taux de réussite objectivée par angiographie étaient comparables dans les deux groupes. Les lésions non calcifiées avaient un diamètre de référence plus grand et étaient plus courtes que les lésions calcifiées, tandis que le gain aigu et la perte luminale tardive étaient similaires dans les deux groupes. Les résultats cliniques à neuf mois étaient aussi similaires dans les deux groupes. CONCLUSIONS: Lorsque les conditions cliniques ou les lésions ne se prêtent pas à l'utilisation d'une endoprothèse médicamentée, le traitement des nouvelles lésions non calcifiées par AR et BM pourrait donner des résultats immédiats et à moyen terme comparables à ceux du traitement des nouvelles lésions calcifiées.

5.
J Atheroscler Thromb ; 28(4): 365-374, 2021 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-32669483

RESUMO

AIMS: This study aimed to assess the clinical efficacy of intravascular ultrasound (IVUS)-guided intraplaque wiring for femoropopliteal (FP) chronic total occlusion (CTO). METHODS: This single-center, retrospective, observational study was performed at the Japanese Red Cross Kyoto Daini Hospital. From March 2013 to June 2017, a total of 75 consecutive patients (mean age: 75.4±8.5 years; 59 males), who underwent endovascular treatment (EVT), having 82 de novo FP-CTO lesions, were enrolled in this study. Eleven of the lesions that met the exclusion criteria were excluded, and the remaining 71 lesions were divided into the IVUS-guided wiring group (n=34) and non-IVUS-guided wiring group (n=37). Primary patency, defined as a peak systolic velocity ratio of <2.4 on duplex ultrasonography, and freedom from clinically driven target lesion revascularization (CD-TLR) at 12 months were the primary outcomes. RESULTS: The mean lesion length was 21.6±8.9 cm. The frequencies of primary patency and freedom from CD-TLR were significantly higher in the IVUS-guided wiring group than in the non-IVUS-guided wiring group (70.0% vs. 52.2%, p=0.045; 83.9% vs. 62.8%, p=0.036, respectively). The complete clinically true lumen angioplasty rate was also higher in the IVUS-guided wiring group than in the non-IVUS-guided wiring group (91.1% vs. 51.3%, p<0.001, respectively). The clinically true and false wire passage rates were respectively 97.3% and 2.7% in the IVUS-guided wiring group. CONCLUSION: IVUS-guided wiring improves the clinical outcomes of EVT for FP-CTO by achieving a high clinically true lumen wire passage rate.


Assuntos
Angioplastia , Arteriopatias Oclusivas , Procedimentos Endovasculares , Artéria Femoral , Artéria Poplítea , Ultrassonografia de Intervenção/métodos , Idoso , Angioplastia/efeitos adversos , Angioplastia/métodos , Arteriopatias Oclusivas/diagnóstico , Arteriopatias Oclusivas/epidemiologia , Arteriopatias Oclusivas/fisiopatologia , Arteriopatias Oclusivas/cirurgia , Doença Crônica , Procedimentos Endovasculares/efeitos adversos , Procedimentos Endovasculares/métodos , Feminino , Artéria Femoral/diagnóstico por imagem , Artéria Femoral/patologia , Artéria Femoral/cirurgia , Humanos , Japão/epidemiologia , Masculino , Avaliação de Resultados em Cuidados de Saúde , Artéria Poplítea/diagnóstico por imagem , Artéria Poplítea/patologia , Artéria Poplítea/cirurgia , Melhoria de Qualidade , Reoperação/métodos , Reoperação/estatística & dados numéricos , Índice de Gravidade de Doença , Cirurgia Assistida por Computador/métodos , Cirurgia Assistida por Computador/normas , Grau de Desobstrução Vascular
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