• Resultados disímiles con stents liberadores de fármacos: resultados a 5 años del ISAR-CABG trial

    On: 11 mayo, 2018
    In: Cardiología Intervencionista
    Views: 48
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    Este mes se publicaron en el JACC los resultados del estudio randomizado entre DES y BMS en lesiones de puentes safenos luego de CABG.
    Al contrario de los resultados en el primer año que fueron favorable a los DES, entre el primer y quinto año hubo una significativa menor incidencia de eventos en los BMS, de modo que los resultados globales a los 5 años entre ambos stents fueron equivalentes.

    https://www.ncbi.nlm.nih.gov/pubmed/29724350

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  • Prasugrel vs Ticagrelor: qué dice la evidencia en largos registros y meta-análisis

    On: 27 abril, 2018
    In: Cardiología Intervencionista, Investigación
    Views: 52
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    Recientes estudios relacionados al uso de thyenopiridinas, clopidogrel, prasugrel y ticagrelor, muestran resultados consistentes a favor del prasugrel en pacientes con STEMI tratados con angioplastia.

    Una reciente revisión de mçultiples registros que incluyen extensos meta-análisis demuestran que tanto el prasugrel como ticagrelor tienen beneficios sobre el clopidogrel a expensas de un mayor sangrado, pero el prasugrel parece ser superior al ticagrelor en pacientes con STEMI.

    Este hallazgo fue consistente en todos los registros y meta-análisis observados por estos investigadores en esta revisión:

    https://www.eurekalert.org/pub_re…/2018-02/bsp-acs020718.php
    https://benthamscience.com/recent-trends/RT-20182302-004/

    El beneficio de prasugrel sobre ticagrelor y clopidogrel en pacientes con STEMI tambien fue reportado en un extenso registro de 89000 pacientes realizado en Gran Bretaña:

    https://www.ncbi.nlm.nih.gov/pubmed/29437885

    ¿Son todas estas evidencias suficientes para cambiar las guÍas de tratamiento a favor de prasugrel en pacientes con STEMI?

    Dado que estudios randomizados extensos con suficiente poder es muy probable que no se puedan realizar nunca, como se vio en el trial PRAGUE, los resultados de estos largos estudios observacionales y meta-análisis deberían ser tomados en cuenta debido a la enorme cantidad de datos todos a favor del prasugrel.

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  • Resultados a largo plazo de la cirugía híbrida combinada con PCI vs CABG en pacientes de múltiples vasos: el estudio HYBRID

    On: 24 abril, 2018
    In: Cardiología Intervencionista
    Views: 51
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    Un estudio randomizado publicado en JACC Interventions demostró que en pacientes seleccionados con enfermedad de múltiples vasos, el tratamiento de cirugía híbrida (HCR ) combinada con angioplastia presenta una similar mortalidad global y eventos adversos a los 5 años de seguimiento
    comparada con los que fueron tratados mediante cirugía convencional (CABG).
    El HYBRID trial fue un estudio piloto prospectivo y randomizado, cuyo objetivo primario fue el evaluar la viabilidad de HCR en pacientes con enfermedad de vasos múltiples.
    El estudio publicado en el mismo Journal había dado resultados similares a 1 año de seguimiento.

    https://www.ncbi.nlm.nih.gov/pubmed/29680218

     

     

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  • Caso en Vivo desde el Congreso CIT 2018

    On: 4 abril, 2018
    In: Cardiología Intervencionista, Investigación, Novedades
    Views: 90
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    En el meeting llevado a cabo en Suzhou, con motivo del China International Therapeutics (CIT 2018), en conjunto con TCT, un caso realizado por el Dr Alfredo E. Rodriguez fue transmitido en vivo desde el First Hospital de Nanjing, China.
    Se trató de una lesión en bifurcación de Tronco de Coronaria Izquierda no protegido. En esta ocasión, luego de una evaluación con IVUS y preparación con “cutting balloon”, se implantó un stent farmacológico Firehawk con polímero bioabsorbible y técnica final de POT en el tronco y ostium de la arteria DA.

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  • Reciente meta-análisis muestra prevalencia de la cirugía convencional(SAVR) sobre el implante percutáneo de válvula aórtica(TAVI)

    Este estudio, que incluyó dos estudios randomizados y 4 estudios observacionales en pacientes con estenosis aórtica y bajo riesgo clínico, mostró similar mortalidad en el período hospitalario entre TAVI y SAVR, pero una mayor sobrevida a los 3 años con SAVR.
    Se incluyeron 3487 pacientes de 6 estudios, 4 de ellos observacionales y 2 randomizados. El TAVI se acompañó de menor insuficiencia renal y riesgo de sangrado pero mayores complicaciones vasculares e indicación de marcapaso definitivo.

    Abstract/Summary

    Background
    Although transcatheter aortic valve replacement (TAVR) is officially indicated for high risk aortic stenosis (AS) patients, the procedure is increasingly being performed in patients who are not at high surgical risk, including a substantial number of low risk patients. However, data on the benefit of TAVR in this patient population is limited.

    Methods
    We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs) and observational studies with propensity score matching (PSM) of TAVR versus surgical aortic valve replacement (SAVR) in patients who are at low surgical risk. The primary outcome was all-cause mortality. The secondary outcomes included stroke, myocardial infarction, bleeding, and various procedural complications.

    Results
    Six studies (2 RCTs and 4 PSM studies) totaling 3,484 patients were included. Follow-up ranged from 3 months to 3 years (median 2 years). The short-term mortality was similar with either TAVR or SAVR (2.2% for TAVR and 2.6% for SAVR, RR 0.89, 95% CI 0.56–1.41, P = 0.62), however, TAVR was associated with increased risk for intermediate-term mortality (17.2% for TAVR and 12.7% for SAVR, RR 1.45, 95% CI 1.11–1.89, P = 0.006). In terms of periprocedural complications, TAVR was associated with reduced risk for bleeding and renal failure and an increase in vascular complications and Pacemaker implantation.

    Conclusions
    In patients who are at low surgical risk, TAVR seems to be associated with increased mortality risk. Until more data in this population is available, SAVR should remain the treatment of choice for these patients.

     http://onlinelibrary.wiley.com/doi/10.1002/ccd.27518/abstract

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  • Primer metaanálisis sobre mortalidad entre CABG y Stents arroja como favorable a la Cirugía

    On: 23 febrero, 2018
    In: Cardiología Intervencionista, Investigación
    Views: 105
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    La revista The Lancet publicó un extenso metaanálisis de 11 estudios randomizados entre stents(bare metal o farmacológicos) y cirugía de revascularización miocárdica, para pacientes con enfermedad de múltiples vasos y tronco no protegido de CI. Se basó en la base de datos individuales de todos esos estudios randomizados.

    La conclusión es que los pacientes tratados con cirugía tienen una significativa mejor sobrevida que los tratados con stents, en relación con la complejidad de las lesiones y la presencia de diabetes. No hubo interacción entre el uso de stents convencionales o farmacológicos.

    Los resultados de este importante estudio sobre métodos de revascularización en enfermedad coronaria, el primero que analiza mortalidad, será motivo seguramente de mucha discusión y análisis de subgrupos.

    Summary
    Background
    Numerous randomised trials have compared coronary artery bypass grafting (CABG) with percutaneous coronary intervention (PCI) for patients with coronary artery disease. However, no studies have been powered to detect a difference in mortality between the revascularisation strategies.

    Methods
    We did a systematic review up to July 19, 2017, to identify randomised clinical trials comparing CABG with PCI using stents. Eligible studies included patients with multivessel or left main coronary artery disease who did not present with acute myocardial infarction, did PCI with stents (bare-metal or drug-eluting), and had more than 1 year of follow-up for all-cause mortality. In a collaborative, pooled analysis of individual patient data from the identified trials, we estimated all-cause mortality up to 5 years using Kaplan-Meier analyses and compared PCI with CABG using a random-effects Cox proportional-hazards model stratified by trial. Consistency of treatment effect was explored in subgroup analyses, with subgroups defined according to baseline clinical and anatomical characteristics.

    Findings
    We included 11 randomised trials involving 11 518 patients selected by heart teams who were assigned to PCI (n=5753) or to CABG (n=5765). 976 patients died over a mean follow-up of 3·8 years (SD 1·4). Mean Synergy between PCI with Taxus and Cardiac Surgery (SYNTAX) score was 26·0 (SD 9·5), with 1798 (22·1%) of 8138 patients having a SYNTAX score of 33 or higher. 5 year all-cause mortality was 11·2% after PCI and 9·2% after CABG (hazard ratio [HR] 1·20, 95% CI 1·06–1·37; p=0·0038). 5 year all-cause mortality was significantly different between the interventions in patients with multivessel disease (11·5% after PCI vs 8·9% after CABG; HR 1·28, 95% CI 1·09–1·49; p=0·0019), including in those with diabetes (15·5% vs 10·0%; 1·48, 1·19–1·84; p=0·0004), but not in those without diabetes (8·7% vs 8·0%; 1·08, 0·86–1·36; p=0·49). SYNTAX score had a significant effect on the difference between the interventions in multivessel disease. 5 year all-cause mortality was similar between the interventions in patients with left main disease (10·7% after PCI vs 10·5% after CABG; 1·07, 0·87–1·33; p=0·52), regardless of diabetes status and SYNTAX score.

    Interpretation
    CABG had a mortality benefit over PCI in patients with multivessel disease, particularly those with diabetes and higher coronary complexity. No benefit for CABG over PCI was seen in patients with left main disease. Longer follow-up is needed to better define mortality differences between the revascularisation strategies.

    Funding
    None.

    http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(18)30423-9/fulltext

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  • Más datos a favor del Prasugrel en síndromes coronarios agudos

    Un extenso registro de Gran Bretaña muestra nuevamente los beneficios del Prasugrel sobre Ticagrelor y Clopidogrel en pacientes con infarto agudo del miocardio supra ST y tratados con angioplastia primaria.
    Ante la ausencia casi definitiva de datos randomizados válidos, ¿deberán incorporarse todas estas evidencias de registros observacionales prospectivos en las guías de tratamiento?

    Abstract
    OBJECTIVES:
    Prasugrel and ticagrelor both reduce ischaemic endpoints in high-risk acute coronary syndromes, compared with clopidogrel. However, comparative outcomes of these two newer drugs in the context of primary percutaneous coronary intervention (PCI) for ST-elevation myocardial infarction (STEMI) remains unclear. We sought to examine this question using the British Cardiovascular Interventional Society national database in patients undergoing primary PCI for STEMI.

    METHODS:
    Data from January 2007 to December 2014 were used to compare use of P2Y12 antiplatelet drugs in primary PCI in >89 000 patients. Statistical modelling, involving propensity matching, multivariate logistic regression (MLR) and proportional hazards modelling, was used to study the association of different antiplatelet drug use with all-cause mortality.

    RESULTS:
    In our main MLR analysis, prasugrel was associated with significantly lower mortality than clopidogrel at both 30 days (OR 0.87, 95% CI 0.78 to 0.97, P=0.014) and 1 year (OR 0.89, 95% CI 0.82 to 0.97, P=0.011) post PCI. Ticagrelor was not associated with any significant differences in mortality compared with clopidogrel at either 30 days (OR 1.07, 95% CI 0.95 to 1.21, P=0.237) or 1 year (OR 1.058, 95% CI 0.96 to 1.16, P=0.247). Finally, ticagrelor was associated with significantly higher mortality than prasugrel at both time points (30 days OR 1.22, 95% CI 1.03 to 1.44, P=0.020; 1 year OR 1.19 95% CI 1.04 to 1.35, P=0.01).

    CONCLUSIONS:
    In a cohort of over 89 000 patients undergoing primary PCI for STEMI in the UK, prasugrel is associated with a lower 30-day and 1-year mortality than clopidogrel and ticagrelor. Given that an adequately powered comparative randomised trial is unlikely to be performed, these data may have implications for routine care.

    https://www.ncbi.nlm.nih.gov/pubmed/29437885

     

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  • Fundamentos de TAVR Express: Reporte de una larga experiencia con alta precoz de pacientes sometidos a reemplazo percutáneo de válvula aórtica(TAVR). Factores predictivos de alta temprana al día siguiente del implante

    On: 1 febrero, 2018
    In: Cardiología Intervencionista
    Views: 90
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    Abstract:

    Objectives This study sought to investigate predictors and safety of next-day discharge (NDD) after transcatheter aortic valve replacement (TAVR).

    Background Information about predictors and safety of NDD after TAVR is limited.

    Methods The study reviewed 663 consecutive patients who underwent elective balloon-expandable TAVR (from July 2014 to July 2016) at our institution. We first determined predictors of NDD in patients who underwent minimalist transfemoral TAVR. After excluding cases with complications, we compared 30-day and 1-year outcomes between NDD patients and those with longer hospital stay using Cox regression adjusting for the Predicted Risk of Mortality provided by the Society of Thoracic Surgeons. The primary endpoint was the composite of mortality and readmission at 1 year.

    Results A total of 150 patients had NDD after TAVR and 210 patients had non-NDD. Mean age and the Society of Thoracic Surgeons Predicted Risk of Mortality were 80.7 ± 8.8 years and 6.6 ± 3.7%, respectively. Predictors of NDD were male sex (odds ratio [OR]: 2.02; 95% confidence interval [CI]: 1.28 to 3.18), absence of atrial fibrillation (OR: 1.62; 95% CI: 1.02 to 2.57), serum creatinine (OR: 0.71; 95% CI: 0.55 to 0.92), and age (OR: 0.95; 95% CI: 0.93 to 0.98). As expected, 84% of patients with complications had non-NDD. After excluding cases with complications, there was no difference in hazard rates of the 30-day composite outcome between NDD and non-NDD (hazard ratio: 0.62; 95% CI: 0.20 to 1.91), but the hazard of the composite outcome at 1 year was significantly lower in the NDD group (hazard ratio: 0.47; 95% CI: 0.27 to 0.81). This difference in the composite outcome can be explained by the lower hazard of noncardiovascular related readmission in the NDD group.

    Conclusions Factors predicting NDD include male sex, absence of atrial fibrillation, lower serum creatinine, and younger age. When compared with patients without complications with a longer hospital stay, NDD appears to be safe, achieving similar 30-day and superior 1-year clinical outcomes.

    http://www.acc.org/latest-in-cardiology/journal-scans/2018/01/16/13/07/predictors-and-clinical-outcomes-of-next-day-discharge

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  • Asociación entre la oclusión del apéndice auricular izquierdo y la readmisión por tromboembolismo en pacientes con fibrilación auricular sometidos a cirugía cardíaca concomitante

    On: 25 enero, 2018
    In: Cardiología Intervencionista, Investigación
    Views: 90
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    Un artículo publicado recientemente en el JAMA (Journal of the American Medical Association) destaca los beneficios de la oclusión quirúrgica del auricular izquierdo para prevenir eventos tromboembólicos en pacientes mayores con fibrilación auricular sometidos a cirugía cardíaca.

    Asociación entre la oclusión del apéndice auricular izquierdo y la readmisión por tromboembolismo en pacientes con fibrilación auricular sometidos a cirugía cardíaca concomitante.

    Friedman DJ, Piccini JP, Wang T, Zheng J, Malaisrie SC, Holmes DR, Suri RM, Mack MJ, Badhwar V, Jacobs JP, Gaca JG, Chow SC, Peterson ED, Brennan JM.

    Key Points
    Question Is surgical left atrial appendage occlusion associated with a reduction in long-term thromboembolic events?

    Findings In this retrospective cohort study of 10 524 Medicare recipients with atrial fibrillation undergoing cardiac surgery, surgical left atrial appendage occlusion, compared with no surgical left atrial appendage occlusion, was significantly associated with lower risk of readmission for thromboembolism at 3 years (unadjusted, 4.2% vs 6.2%; adjusted hazard ratio, 0.67).

    Meaning Surgical left atrial appendage occlusion may be of benefit in preventing thromboembolic events in older patients with atrial fibrillation undergoing cardiac surgery, although randomized trials would be necessary to provide definitive evidence.

     

    https://www.ncbi.nlm.nih.gov/pubmed/29362794

     

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  • Rivaroxaban con o sin aspirina en enfermedades cardiovasculares estables: lo que dejó el COMPASS Trial

    On: 18 enero, 2018
    In: Cardiología Intervencionista, Investigación
    Views: 112
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    Uno de los highlights de la investigación científica cardiológica en 2017 fue el COMPASS trial presentado por John W. Eikelboom en el New England Journal of Medicine, que demostró que el rivaroxaban con aspirina mejora los resultados en pacientes con enfermedad cardiovascular estable. Dejamos la descripción del abstract del paper y sus autores para más detalles:

    Rivaroxaban with or without Aspirin in Stable Cardiovascular Disease.
    Eikelboom JW, Connolly SJ, Bosch J, Dagenais GR, Hart RG, Shestakovska O, Diaz R, Alings M, Lonn EM, Anand SS, Widimsky P, Hori M, Avezum A, Piegas LS, Branch KRH, Probstfield J, Bhatt DL, Zhu J, Liang Y, Maggioni AP, Lopez-Jaramillo P, O’Donnell M, Kakkar AK, Fox KAA, Parkhomenko AN, Ertl G, Störk S, Keltai M, Ryden L, Pogosova N, Dans AL, Lanas F, Commerford PJ, Torp-Pedersen C, Guzik TJ, Verhamme PB, Vinereanu D, Kim JH, Tonkin AM, Lewis BS, Felix C, Yusoff K, Steg PG, Metsarinne KP, Cook Bruns N, Misselwitz F, Chen E, Leong D, Yusuf S; COMPASS Investigators.

    Abstract
    BACKGROUND:
    We evaluated whether rivaroxaban alone or in combination with aspirin would be more effective than aspirin alone for secondary cardiovascular prevention.

    METHODS:
    In this double-blind trial, we randomly assigned 27,395 participants with stable atherosclerotic vascular disease to receive rivaroxaban (2.5 mg twice daily) plus aspirin (100 mg once daily), rivaroxaban (5 mg twice daily), or aspirin (100 mg once daily). The primary outcome was a composite of cardiovascular death, stroke, or myocardial infarction. The study was stopped for superiority of the rivaroxaban-plus-aspirin group after a mean follow-up of 23 months.

    RESULTS:
    The primary outcome occurred in fewer patients in the rivaroxaban-plus-aspirin group than in the aspirin-alone group (379 patients [4.1%] vs. 496 patients [5.4%]; hazard ratio, 0.76; 95% confidence interval [CI], 0.66 to 0.86; P<0.001; z=-4.126), but major bleeding events occurred in more patients in the rivaroxaban-plus-aspirin group (288 patients [3.1%] vs. 170 patients [1.9%]; hazard ratio, 1.70; 95% CI, 1.40 to 2.05; P<0.001). There was no significant difference in intracranial or fatal bleeding between these two groups. There were 313 deaths (3.4%) in the rivaroxaban-plus-aspirin group as compared with 378 (4.1%) in the aspirin-alone group (hazard ratio, 0.82; 95% CI, 0.71 to 0.96; P=0.01; threshold P value for significance, 0.0025). The primary outcome did not occur in significantly fewer patients in the rivaroxaban-alone group than in the aspirin-alone group, but major bleeding events occurred in more patients in the rivaroxaban-alone group.

    CONCLUSIONS:
    Among patients with stable atherosclerotic vascular disease, those assigned to rivaroxaban (2.5 mg twice daily) plus aspirin had better cardiovascular outcomes and more major bleeding events than those assigned to aspirin alone. Rivaroxaban (5 mg twice daily) alone did not result in better cardiovascular outcomes than aspirin alone and resulted in more major bleeding events. (Funded by Bayer; COMPASS ClinicalTrials.gov number, NCT01776424 .).

    https://www.ncbi.nlm.nih.gov/pubmed/28844192

     

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