Tratamiento trombolitico en el síndrome coronario agudo con elevación del st / Treatment trombolitico in the sharp coronary syndrome with elevation of the st

RESUMEN Introducción: la cardiopatía isquémica es tan antigua como el hombre. Constituye uno de los problemas de salud más serios a nivel mundial. Entre sus formas clínicas está el infarto agudo de miocardio. Los síndromes isquémicos agudos, representan un espectro clínico continúo sustentado por una fisiopatología común. Objetivo: identificar los factores que causaron retraso en la aplicación del tratamiento trombolítico en los pacientes, los que se traducen en el futuro, en pérdida de calidad de vida, diferentes grados de discapacidad, y hasta del aumento de la mortalidad por esta entidad. Materiales y métodos: se realizó un estudio observacional, con 62 pacientes con criterio de trombolisis atendidos en la Unidad de Cuidados Intensivos del Hospital Docente Clínico Quirúrgico "José Ramón López Tabrane", en el período comprendido entre enero del 2012 y junio del 2014. Se aplicaron métodos empíricos, estadísticos y teóricos. Resultados: de 147 pacientes recibidos con criterios de trombolisis 62 no recibieron el tratamiento trombolítico que representó un 42,2 %. Entre las causas estuvieron falta de entrenamiento de los médicos para la aplicación de dicho tratamiento y la no existencia de transporte para su traslado en el tiempo requerido. Conclusiones: los pacientes no trombolizados con más de 12 h sin diagnóstico con criterio de infacto agudo del miocardo, incidió en el diagnóstico erróneo del médico y valencia de sus propios medios, para llegar a un centro de salud. Con contraindicación absoluta, el accidente vascular isquémico menor de tres meses fue la causante más padecida. Con contraindicación relativa fue la hipertensión arterial no controlada (AU).

SUMMARY Introduction: The Ischemic Cardiopatía is as old as the man. One constitutes from the most serious problems of health to world level and enter their clinical forms the sharp heart attack of miocardio is (IMA), causing in the world population a third of the deaths. The sharp ischemic syndromes SIAs represents a continuous clinical spectrum sustained by a fisiopatología común. Objective: He/she was carried out an observational, descriptive and traverse study, in 62 patients with trombolisis approach assisted in the UCIE of the Surgical Clinical Educational Hospital José Ramón López Tabrane, in the period understood between January of 2012 and June of the 2014.Se they applied the empiric, statistical and theoretical methods. Materials and method: identify the factors that caused delay in the application of the treatment trombolítico in this patients, which are translated in the future in loss of quality of life, different discapacidad grades and until of the increase of the mortality for this entity. Among the causes that were they were: the non training of the doctors for the application of this treatment and the not existence of transport for their transfer in the required time. Conclusion: In patient non trombolizados with more than twelve hours without diagnostic of IMA (19,4%) with approach impacted the doctor's erroneous diagnosis and valency of their own means to arrive to a center of health. With absolute contraindication, the Ischemic Vascular Accident smaller than three months was the causing one more suffered. With relative contraindication it was the arterial hypertension not controlled (AU).

Fragmentación mecánica y trombólisis guiada por catéter en la embolia pulmonar de riesgo intermedio / Mechanical fragmentation and catheter-guided thrombolysis in intermediate risk pulmonary embolism

La tromboembolia pulmonar aguda (TEPA) sigue siendo una importante causa de morbilidad y mortalidad a nivel mundial. Su diagnóstico, estratificación de riesgo y tratamiento precoz son fundamentales, siendo su pilar la anticoagulación. En pacientes de bajo riesgo cardiovascular, el pronóstico es excelente y solo basta con la administración de anticoagulantes. No obstante, debido al pobre pronóstico de los pacientes con riesgo elevado (descompensación hemodinámica), el enfoque terapéutico es más agresivo, utilizándose trombolíticos sistémicos que disminuyen la mortalidad pero incrementan el riesgo de complicaciones hemorrágicas mayores. En el TEPA de riesgo intermedio (evidencia de falla de ventrículo derecho, sin descompensación hemodinámica), la relación riesgo-beneficio del tratamiento con trombolíticos es más equilibrada por lo que la decisión es controvertida. La fragmentación mecánica con trombólisis dirigida por catéter es una alternativa con potenciales beneficios. Presentamos dos casos de TEPA de riesgo intermedio, en los que se realizó fragmentación mecánica y trombólisis dirigida por catéter.

Acute pulmonary thromboembolism remains a significant cause of morbidity and mortality worldwide. Its diagnosis, risk stratification and early treatment are essential. The mainstay of treatment is anticoagulation. In patients with low cardiovascular risk, the prognosis is excellent and the treatment consists only of the administration of anticoagulants. Due to the poor prognosis of patients with high risk (hemodynamic decompensation), the approach is more aggressive using systemic thrombolytics, which reduce mortality but increase the risk of major hemorrhagic complications. In the intermediate-risk patients (evidence of right ventricular failure, without hemodynamic decompensation), the risk-benefit relationship of thrombolytic treatment is more balanced, so the choice is controversial. Mechanical fragmentation with catheter-directed thrombolysis is an alternative with potential benefits. We present two cases of intermediate-risk acute pulmonary thromboembolism to whom mechanical fragmentation and catheter-directed thrombolysis was applied.

Mechanical thrombectomy for reperfusion of acute ischemic stroke in a Stroke Unit in Argentina / Trombectomía mecánica para la reperfusión en el accidente cerebrovascular agudo en una Unidad Cerebrovascular de Argentina

Abstract Stroke is an important cause of morbidity and mortality worldwide. Reperfusion therapy with intravenous tissue plasminogen activator (IV-tPA) was first implemented in 1996. More recently, endovascular reperfusion with mechanical thrombectomy (MT) demonstrated a robust beneficial effect, extending the 4.5 h time window. In our country, there are difficulties to achieve the implementation of both procedures. Objective: Our purpose is to report the early experience of a Comprehensive Stroke Center in the use of MT for acute stroke. Methods: Analysis of consecutive patients from January 2015 to September 2018, who received reperfusion treatment with MT. Demographic data, treatment times, previous use of IV-tPA, site of obstruction, recanalization, outcomes and disability after stroke were assessed. Results: We admitted 891 patients with acute ischemic stroke during this period. Ninety-seven received IV-tPA (11%) and 27 were treated with MT (3%). In the MT group, mean age was 66.0±14.5 years. Median NIHSS before MT was 20 (range:14‒24). The most prevalent etiology was cardioembolic stroke (52%). Prior to MT, 16 of 27 patients (59%) received IV-tPA. Previous tPA treatment did not affect onset to recanalization time or door-to-puncture time. For MT, door-to-puncture time was 104±50 minutes and onset to recanalization was 289±153 minutes. Successful recanalization (mTICI grade 2b/3) was achieved in 21 patients (78%). At three-month follow-up, the median NIHSS was 5 (range:4‒15) and mRS was 0‒2 in 37%, and ≥3 in 63%. Conclusions: With adequate logistics and strict selection criteria, MT can be implemented in our population with results like those reported in large clinical trials.

Resumen El accidente cerebrovascular isquémico (ACVi) es una importante causa de morbi-mortalidad a nivel mundial. La reperfusión con trombólisis endovenosa es utilizada desde 1996. Más recientemente, la reperfusión con trombectomía mecánica (TM) ha demostrado un beneficio consistente extendiendo la ventana terapéutica. En nuestro país existen dificultades para que su implementación sea una práctica habitual. Objetivo: Reportamos la experiencia de un Centro Integral de Neurología Vascular en el uso de TM como tratamiento del ACVi agudo. Métodos: Análisis retrospectivo de pacientes consecutivos desde enero 2015 a septiembre 2018, que recibieron reperfusión con TM. Se registraron datos demográficos, tiempos de tratamiento, uso de rtPA, sitio de obstrucción, recanalización, severidad del evento y discapacidad. Resultados: Se evaluaron 891 pacientes con ACVi en este periodo. 97 recibieron rtPA (11%) y 27 recibieron TM (3%). En el grupo TM, la edad promedio fue 66 años (±14.5). Mediana de NIHSS previo a TM: 20 (RIC 14‒24). La etiología más frecuente fue cardioembolia (52%). Previo a TM, 16 pacientes (59%) recibieron rtPA endovenoso. No hallamos efecto del rtPA en tiempo de recanalización por TM o tiempo puerta-punción. Para la TM, el tiempo puerta-punción fue 104±50 minutos y el tiempo entre inicio de síntomas-recanalización fue 289±153 minutos. En 21 pacientes (78%) se logró recanalización exitosa (TICI 2B/3). En el seguimiento a tres meses, el mRS fue 0‒2 en el 37% y ≥3 en el 63%. Conclusión: Una logística adecuada y un estricto criterio de selección ha posibilitado el uso de TM en nuestra población, obteniendo resultados similares a aquellos reportados en los estudios clínicos publicados.

The direct first pass aspiration technique in the treatment of acute ischemic stroke resulting from large vessel occlusions / Técnica de aspiração primária no tratamento do acidente vascular cerebral isquêmico por oclusões de grandes vasos

ABSTRACT Mechanical thrombectomy using stent retrievers is the standard treatment for acute ischemic stroke that results from large vessel occlusions. The direct aspiration first pass technique (ADAPT) has been proposed as an efficient, fast, and cost-effective thrombectomy strategy. The aim of this study was to assess the safety and efficacy of ADAPT. Methods Recanalization was assessed using the modified thrombolysis in cerebral infarction (mTICI) score. Neurological outcomes were assessed using the National Institutes of Health Stroke Scale and modified Rankin Scale. Results Fifteen patients were evaluated. The mTICI score was 2b-3 in 80%, and it was 3 in 60% of patients. No intracranial hemorrhage was seen. At three months, modified Rankin Scale scores ≤ 2 were observed in 60% of patients and the mortality rate was 13.3%. Conclusions The ADAPT appears to be a safe, effective, and fast recanalization strategy for treatment of acute ischemic stroke resulting from large vessel occlusions.

RESUMO A trombectomia mecânica com stent retrievers é o tratamento padrão ouro do acidente vascular cerebral isquêmico agudo (AVCi) por oclusão de grandes artérias. A técnica de aspiração primária (ADAPT) tem sido proposta como uma estratégia de trombectomia rápida e com boa custo-efetividade. O objetivo deste estudo foi avaliar a segurança e eficácia da técnica ADAPT. Métodos A recanalização foi avaliada utilizando a escala mTICI. Os desfechos neurológicos foram avaliados utilizando as escalas do NIHSS e mRS. Resultados Quinze pacientes foram avaliados. Foram obtidas taxas de mTICI = 2b-3 em 80% e TICI = 3 em 60% dos pacientes. Não ocorreram hemorragias intracranianas. Em 3 meses as taxas de mRS≤2 e mortalidade foram respectivamente 60% e 13.3%. Conclusão A técnica ADAPT parece ser uma estratégia de recanalização rápida, segura e efetiva para o tratamento do AVC por oclusão de grandes artérias.

Trombolisis mecánica y fármaco-mecánica en el tratamiento de trombosis venosa profunda sin respuesta clínica con tratamiento médico convencional / Mechanical and pharmacomechanical trombolysis in deep venous thrombosis with no clinical response to conventional treatment

Background: Conventional treatment of deep vein thrombosis (DVT) is anticoagulation, bed rest and limb elevation. Proximal DVT patients with persisting edema, pain and cyanosis of extremities despite of conventional therapy may develop ischemia. Direct treatment of thrombosis becomes necessary. Aim: To report our experience with mechanical trombolysis of proximal lower extremity DVT. Material and Methods: Retrospective review of medical records of proximal DVT patients treated with thrombolysis between March 2012 and August 2015. Thirteen patients, 14 limbs, median age 34 years (22-85), 8 women, were admitted with pain and swelling of recent onset; one patient with venous gangrene. All patients initially received heparin in therapeutic doses without clinical improvement. Results: In all 13 cases, mechanical thrombolysis was performed using AngioJet®, and associated with single dose thrombolytic agent in 9. Additional angioplasty for residual stenosis was performed in 12 (7 stents) and IVCF were implanted in 8. All patients were subsequently anticoagulated. Early outcomes with disappearance of pain and decrease of edema, with no mortality or bleeding complications. The patient with foot gangrene required amputation. Conclusions: Mechanical thrombolysis with a single dose of a thrombolytic agent is safe and effective in patients with proximal DVT with an unfavorable evolution.

Trombectomía mecánica en el ICTUS: experiencia con trevo en Hospital Provincial Clínico Barcelona / Mechanical thrombectomy in stroke: experience with trevo at Hospital Provincial Clinic Barcelona

Objectives: to report our experience, the efficiency, safety and results of endovascular mechanical thrombectomy with the Trevo device in acute ischemic cerebral stroke. Materials and Methods: we performed a retrospective study of 145 acute ischemic stroke patients treated with mechanical throm-bectomy using the Trevo system, between october 2008 and march 2012. 87.3percent in anterior circulation and 12.7 percent in posterior circulation. Results: mean age at presentation was 67 years (range 21-82, 54.5 percent males). The NIHSS presentation baseline was 17 (range, 18-22). The median interval from the onset of symptoms to arterial punction was 263 minutes (173-296). Satisfactory recanalization defined TICI (2-3) in 91 percent with 45 percent showing a good functional prognosis (mRS 0-2) at 90 days. 23 percent mortality at 90 days with 11 percent intracerebral haemorrage. Conclusions: in our experience, endovascular treatment of acute ischemic stroke with the Trevo device is safe and effective.

Objetivos: reportar nuestra experiencia, eficacia, seguridad y resultados del tratamiento endovascular mediante trombectomía mecánica con el dispositivo Trevo en el ictus cerebral isquémico agudo. Materiales y Métodos: realizamos un estudio retrospectivo de 145 pacientes con infarto cerebral isquémico agudo tratados mediante trombectomía mecánica con el dispositivo Trevo entre octubre del 2008 y marzo del 2012. 87,3 por ciento circulación anterior y 12,7 por ciento circulación posterior. Resultados: la edad media de presentación fue 67 años (rango 21-82; 54,5 por ciento sexo masculino). El NIHSS basal de presentación fue de 17 (rango, 18-22). La mediana desde el inicio de los síntomas a punción arterial fue de 263 minutos (173-296). Recanalización satisfactoria (TICI 2-3) del 91 por ciento con un 45 por ciento de buen pronóstico funcional (mRS de 0-2) a los 90 días. Mortalidad de 23 por ciento a los 90 días con 11 por ciento de sangrado intracerebral. Conclusiones: en nuestra experiencia, el tratamiento endovascular del ictus isquémico agudo con el dispositivo Trevo es seguro y eficaz.

Mechanical thrombectomy with solitaire stent retrieval for acute ischemic stroke in a Brazilian population

OBJECTIVE: Large vessel occlusion in acute ischemic stroke is associated with low recanalization rates under intravenous thrombolysis. We evaluated the safety and efficacy of the Solitaire AB stent in treating acute ischemic stroke. METHODS: Patients presenting with acute ischemic stroke were prospectively evaluated. The neurological outcomes were assessed using the National Institutes of Health Stroke Scale and the modified Rankin Scale. Time was recorded from the symptom onset to the recanalization and procedure time. Recanalization was assessed using the thrombolysis in cerebral infarction score. RESULTS: Twenty-one patients were evaluated. The mean patient age was 65, and the National Institutes of Health Stroke Scale scores ranged from 7 to 28 (average 17±6.36) at presentation. The vessel occlusions occurred in the middle cerebral artery (61.9%), distal internal carotid artery (14.3%), tandem carotid occlusion (14.3%), and basilarartery (9.5%). Primary thrombectomy, rescue treatment and a bridging approach represented 66.6%, 28.6%, and 4.8% of the performed procedures, respectively. The mean time from symptom onset to recanalization was 356.5±107.8 minutes (range, 80-586 minutes). The mean procedure time was 60.4±58.8 minutes (range, 14-240 minutes). The overall recanalization rate (thrombolysis in cerebral infarction scores of 3 or 2b) was 90.4%, and the symptomatic intracranial hemorrhage rate was 14.2%. The National Institutes of Health Stroke Scale scores at discharge ranged from 0 to 25 (average 6.9±7). At three months, 61.9% of the patients had a modified Rankin Scale score of 0 to 2, with an overall mortality rate of 9.5%. CONCLUSIONS: Intra-arterial thrombectomy with the Solitaire AB device appears to be safe and effective. Large randomized trials are necessary to confirm the benefits of this approach in acute ischemic stroke.