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Guía de Práctica Clínica - Problema de Salud AUGE N°05

Infarto agudo del miocardio

Recomendación T6 – Juicio del Panel y Evidencia

T.6 En personas con infarto agudo al miocardio con supradesnivel del segmento ST (SDST) tratados con trombolisis, el Ministerio de Salud RECOMIENDA realizar dentro de las primeras 48 horas del evento una coronariografía de rutina a todos los pacientes por sobre realizarla sólo a grupos seleccionados.
Comentarios del Panel de Expertos:
►Para identificar el centro de salud al cual derivar consultar documento Redes de Atención GES y No GES 2018 página 26 y Coordinación Cardiología de Alta Complejidad – Departamento Ges y Redes de Alta Complejidad (ver documentos relacionados)
►Se define coronariografía y angioplastía de rutina precoz como aquella que se realiza dentro de las primeras 48 hrs del evento.

El Panel de Expertos analizó y debatió cada uno de las preguntas de la “Tabla de la evidencia a la decisión”, considerando tanto la evidencia de investigación, experiencia clínica, conocimiento de gestión o experiencia de los pacientes. Una vez consensuada la postura del panel respecto a las preguntas, emitieron un juicio seleccionando la opción de respuesta que mejor representaba la opinión del conjunto (destacada con color). Finalmente cuando el panel emitió su juicio sobre todas las preguntas, se emitió la recomendación.

A continuación se presenta la “Tabla de la evidencia a la decisión” con el resumen de los juicios, la evidencia de investigación evaluada, consideraciones adicionales y comentarios planteados por el panel.

 1.- ¿El problema es una prioridad?
No Probablemente no Probablemente sí Varía No lo sé

El problemade salud ha sido definido como prioritario de abordar a través de una Guía de Práctica Clínica por la División de Prevención y Control de Enfermedades del Ministerio de Salud. La pregunta ha sido priorizada por el equipo de esta Guía, ya sea porque existía variabilidad o incertidumbre.

 2.- ¿Qué tan significativos son los efectos deseables anticipados?
Trivial Pequeño Moderado Grande Varía No lo sé

Grandes: El equipo elaborador de la Guía estimó que los efectos deseables de «realizar coronariografía y eventual angioplastía de rutina precoz» en comparación a » realizarla sólo en caso de presentar síntomas o isquemia» son grandes, considerando la evidencia, experiencia clínica, conocimiento de gestión o experiencia de las personas con la condición o problema de salud.

Evidencia de investigación

Coronariografía precoz versus manejo guiado por isquemia post-trombolisis en IAM con SDST.

Población

Personas con infarto agudo al miocardio con supradesnivel del segmento ST (SDST) tratados con trombolíticos

Intervención

Coronariografía y eventual angioplastía de rutina precoz.

Comparación

Realizarla sólo en caso de presentar síntomas o isquemia.

Desenlaces**

Efecto relativo

(IC 95%)

Estudios/

pacientes

Efecto absoluto estimado*

Certeza de la evidencia

(GRADE)

Mensajes clave en términos sencillos

Realizarla sólo en caso de presentar síntomas o isquemia

Coronariografía y angioplastía rutinaria precoz

Diferencia

(IC 95%)

Mortalidad

RR 0,80

(0,59 a 1,08)

6 ensayos [34, 36, 42, 45, 49, 59] / 2410 pacientes

78

por 1000

62

por 1000

Diferencia: 16 menos

(32 menos a 6 más)

⊕⊕⊕1

Moderada

Coronariografía y eventual angioplastía de rutina precoz comparado con realizarla sólo en caso de presentar síntomas o isquemia probablemente disminuye la mortalidad.

Reinfarto

RR 0,64

(0,46 a 0,90)

6 ensayos [34, 36, 42, 45, 49, 59] / 2410 pacientes

70

por 1000

45

por 1000

Diferencia: 25 menos

(7 a 38 menos)

⊕⊕⊕⊕

Alta

Coronariografía y eventual angioplastía de rutina precoz comparado con realizarla sólo en caso de presentar síntomas o isquemia disminuye el riesgo de reinfarto.

Accidente cerebrovascular

RR 0,60

(0,27 a 1,33)

2 ensayos [42, 49] / 463 pacientes

68

por 1000

41

por 1000

Diferencia: 27 menos

(50 menos a 22 más)

⊕⊕◯◯2

Baja

Coronariografía y eventual angioplastía de rutina precoz comparado con realizarla sólo en caso de presentar síntomas o isquemia podría disminuir los accidentes cerebrovasculares, pero la certeza de la evidencia es baja.

Hospitalización

RR 0,93

(0,70 a 1,24)

1 ensayo [59] / 984 pacientes

165

por 1000

153

por 1000

Diferencia: 12 menos

(49 menos a 40 más)

⊕⊕◯◯2

Baja

Coronariografía y eventual angioplastía de rutina precoz comparado con realizarla sólo en caso de presentar síntomas o isquemia podría disminuir los accidentes cerebrovasculares, pero la certeza de la evidencia es baja.

Insuficiencia cardiaca

El desenlace insuficiencia cardiaca no fue reportado.

Hemorragia

El desenlace hemorragia no fue reportado.

IC 95%: Intervalo de confianza del 95%.
RR: Riesgo relativo.
GRADE: Grados de evidencia Grading of Recommendations Assessment, Development and Evaluation.
* El riesgo CON realizarla sólo en caso de presentar síntomas o isquemia está basado en el riesgo del grupo control en los estudios. El riesgo CON coronariografía y angioplastía precoz (y su intervalo de confianza) está calculado a partir del efecto relativo (y su intervalo de confianza).
**Seguimiento promedio 1 año.
1 Se disminuyó un nivel de certeza de evidencia por imprecisión, ya que cada extremo del intervalo de confianza conlleva una decisión diferente.
2 Se disminuyó dos niveles de certeza de evidencia por imprecisión, ya que cada extremo del intervalo de confianza conlleva una decisión opuesta (intervalo de confianza muy amplio).
Fecha de elaboración de la tabla: Enero, 2019.

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Búsqueda y Síntesis de Evidencia

 3.- ¿Qué tan significativos son los efectos indeseables anticipados?
Grande Moderado Pequeño Trivial Varía No lo sé

Pequeños: El equipo elaborador de la Guía estimó que los efectos indeseables de «realizar coronariografía y eventual angioplastía de rutina precoz» en comparación a » realizarla sólo en caso de presentar síntomas o isquemia» son pequeños, considerando la evidencia, experiencia clínica, conocimiento de gestión o experiencia de las personas con la condición o problema de salud.

Consideraciones Adicionales

Considerando que la intervención se realiza por equipos especializados experimentados y por protocolos definidos, los efectos indeseables graves son poco frecuentes.
Los efectos indeseables menos graves son los más frecuentes.

Evidencia de investigación

Coronariografía precoz versus manejo guiado por isquemia post-trombolisis en IAM con SDST.

Población

Personas con infarto agudo al miocardio con supradesnivel del segmento ST (SDST) tratados con trombolíticos

Intervención

Coronariografía y eventual angioplastía de rutina precoz.

Comparación

Realizarla sólo en caso de presentar síntomas o isquemia.

Desenlaces**

Efecto relativo

(IC 95%)

Estudios/

pacientes

Efecto absoluto estimado*

Certeza de la evidencia

(GRADE)

Mensajes clave en términos sencillos

Realizarla sólo en caso de presentar síntomas o isquemia

Coronariografía y angioplastía rutinaria precoz

Diferencia

(IC 95%)

Mortalidad

RR 0,80

(0,59 a 1,08)

6 ensayos [34, 36, 42, 45, 49, 59] / 2410 pacientes

78

por 1000

62

por 1000

Diferencia: 16 menos

(32 menos a 6 más)

⊕⊕⊕1

Moderada

Coronariografía y eventual angioplastía de rutina precoz comparado con realizarla sólo en caso de presentar síntomas o isquemia probablemente disminuye la mortalidad.

Reinfarto

RR 0,64

(0,46 a 0,90)

6 ensayos [34, 36, 42, 45, 49, 59] / 2410 pacientes

70

por 1000

45

por 1000

Diferencia: 25 menos

(7 a 38 menos)

⊕⊕⊕⊕

Alta

Coronariografía y eventual angioplastía de rutina precoz comparado con realizarla sólo en caso de presentar síntomas o isquemia disminuye el riesgo de reinfarto.

Accidente cerebrovascular

RR 0,60

(0,27 a 1,33)

2 ensayos [42, 49] / 463 pacientes

68

por 1000

41

por 1000

Diferencia: 27 menos

(50 menos a 22 más)

⊕⊕◯◯2

Baja

Coronariografía y eventual angioplastía de rutina precoz comparado con realizarla sólo en caso de presentar síntomas o isquemia podría disminuir los accidentes cerebrovasculares, pero la certeza de la evidencia es baja.

Hospitalización

RR 0,93

(0,70 a 1,24)

1 ensayo [59] / 984 pacientes

165

por 1000

153

por 1000

Diferencia: 12 menos

(49 menos a 40 más)

⊕⊕◯◯2

Baja

Coronariografía y eventual angioplastía de rutina precoz comparado con realizarla sólo en caso de presentar síntomas o isquemia podría disminuir los accidentes cerebrovasculares, pero la certeza de la evidencia es baja.

Insuficiencia cardiaca

El desenlace insuficiencia cardiaca no fue reportado.

Hemorragia

El desenlace hemorragia no fue reportado.

IC 95%: Intervalo de confianza del 95%.
RR: Riesgo relativo.
GRADE: Grados de evidencia Grading of Recommendations Assessment, Development and Evaluation.
* El riesgo CON realizarla sólo en caso de presentar síntomas o isquemia está basado en el riesgo del grupo control en los estudios. El riesgo CON coronariografía y angioplastía precoz (y su intervalo de confianza) está calculado a partir del efecto relativo (y su intervalo de confianza).
**Seguimiento promedio 1 año.
1 Se disminuyó un nivel de certeza de evidencia por imprecisión, ya que cada extremo del intervalo de confianza conlleva una decisión diferente.
2 Se disminuyó dos niveles de certeza de evidencia por imprecisión, ya que cada extremo del intervalo de confianza conlleva una decisión opuesta (intervalo de confianza muy amplio).
Fecha de elaboración de la tabla: Enero, 2019.

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64. Vermeer F, Oude Ophuis AJ, vd Berg EJ, Brunninkhuis LG, Werter CJ, Boehmer AG, Lousberg AH, Dassen WR, Bär FW. Prospective randomised comparison between thrombolysis, rescue PTCA, and primary PTCA in patients with extensive myocardial infarction admitted to a hospital without PTCA facilities: a safety and feasibility study. Heart (British Cardiac Society). 1999;82(4):426-31.
65. WEST. Armstrong PW. A comparison of pharmacologic therapy with/without timely coronary intervention vs. primary percutaneous intervention early after ST-elevation myocardial infarction: the WEST (Which Early ST-elevation myocardial infarction Therapy) study. European heart journal. 2006;27(13):1530-8.
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Búsqueda y Síntesis de Evidencia

 4.- ¿Cuál es la certeza general de la evidencia sobre efectos?
Muy baja Baja Moderada Alta Ningún estudio incluido

Moderada: Existe confianza respecto del efecto de «realizar coronariografía y eventual angioplastía de rutina precoz» en comparación a » realizarla sólo en caso de presentar síntomas o isquemia».

Evidencia de investigación

Desenlaces

Importancia

Certainty of the evidence
(GRADE)

Mortalidad

CRÍTICO

⨁⨁⨁
MODERADOa

Reinfarto

CRÍTICO

⨁⨁⨁
MODERADOa

Accidente cerebrovascular

IMPORTANTE

⨁⨁◯◯
BAJAb

Hospitalizaciones

IMPORTANTE

⨁⨁◯◯
BAJAb

a. Se disminuyó un nivel de certeza de evidencia por imprecisión, ya que cada extremo del intervalo de confianza conlleva una decisión diferente.
b. Se disminuyó dos niveles de certeza de evidencia por imprecisión, ya que cada extremo del intervalo de confianza conlleva una decisión opuestas (intervalo de confianza muy amplio).

 5.- ¿Hay incertidumbre importante o variabilidad sobre qué tanto valora la gente los desenlaces principales?
Incertidumbre o variabilidad importantes Posiblemente hay incertidumbre o variabilidad importantes Probablemente no hay incertidumbre ni variabilidad importantes No hay variabilidad o incertidumbre importante

No hay variabilidad o incertidumbre importante: En función de la evidencia de investigación, experiencia clínica, conocimiento de gestión o experiencia de las personas con la condición o problema de salud, el equipo elaborador de la Guía consideró que no existe incertidumbre o variabilidad importante respecto a lo que escogería una persona informada de los efectos deseables e indeseables de «realizar coronariografía y eventual angioplastía de rutina precoz» y » realizarla sólo en caso de presentar síntomas o isquemia». Todas o casi todas las personas escogerían realizar coronariografía y eventual angioplastía de rutina precoz.

Evidencia de investigación

No se encontraron estudios que respondieran la pregunta desde la perspectiva de valores y preferencias de pacientes o cuidadores.

Referencias

1. Lawler PR, Filion KB, Eisenberg MJ. Efficacy of exercise-based cardiac rehabilitation post-myocardial infarction: a systematic review and meta-analysis of randomized controlled trials. Am Heart J. 2011 Oct;162(4):571-584.e2.

Búsqueda y Síntesis de Evidencia

 6.- El balance entre efectos deseables e indeseables favorece la intervención o la comparación?
Favorece la comparación Probablemente favorece la comparación No favorece la intervención ni la comparación Probablemente favorece la intervención Favorece la intervención Varía No lo sé

Favorece la intervención: Considerando que la intervención es «realizar coronariografía y eventual angioplastía de rutina precoz» y la comparación es » realizarla sólo en caso de presentar síntomas o isquemia», el equipo elaborador de la Guía opinó que el balance entre efectos deseables e indeseables claramente favorece «realizar coronariografía y eventual angioplastía de rutina precoz».

 7.- ¿Qué tan grandes son los recursos necesarios (costos)?
Costos extensos Costos moderados Costos y ahorros despreciables Ahorros moderados Ahorros extensos Varía No lo sé

Costos extensos: El equipo elaborador de la Guía consideró que los costos de «realizar coronariografía y eventual angioplastía de rutina precoz» son grandes si se compara con los costos de » realizarla sólo en caso de presentar síntomas o isquemia», en función de los antecedentes, experiencia clínica, conocimiento de gestión o experiencia de los pacientes.

Evidencia de investigación

Ítem

Realizar coronariografía y eventual angioplastia precoz

Realizar coronariografía y eventual angioplastia tardía**

Coronariografía

Cinecoronariografía (A.C. 17-01-019)

 

$ 57.5802

 

 

$ 57.5802

 

 

Cinecoronariografía electiva o de urgencia

$ 446.5803

$ 446.5803

ANGIOPLASTÍA

Procedimiento que Incluye día cama baja complejidad y UCI, exámenes de laboratorio y de imagen, insumos, stents, guías y balones

 

 

$ 2.315.8731

 

 

 

 

 

$ 2.315.8731

 

 

 

 

Trombolíticos:

(Tenecteplase 50 mg 10 ml Jeringa prellenada) (30-50 mg según peso)

 

 

 

$ 517.216 4-$714.3575

 

 

 

$ 517.216 4-$714.3575

 

(Alteplase 50 mg)

(Caja con 2 sets completos para el tratamiento fibrinolítico. Cada set contiene: 1 vial con 50 mg de alteplase + 1 vial con 50 cc de agua estéril para inyectables + 1 cánula de transferencia).

 

 

 

$ 1.046.5945

 

 

 

 

$ 1.046.5945

 

 

Estreptoquinasa 1,500,000 UI – am

(1.500.000 UI en 30- 60 minutos)4

 

$ 63.4066

 

 

$ 63.4066

 

*El porcentaje de cobertura del seguro de salud sobre el precio de la(s) prestación(es) sanitaria(s), dependerá del tipo de seguro de cada paciente.
** Podrían existir costos adicionales por realizar el procedimiento tardíamente.
Referencias
1. Precio estudio de costo FONASA
2. Arancel MLE, 2018.
3. PPV, 2018.
4. Canasta GES, 2017.
5. Mercado Público. Precio más IVA.
6. Precio obtenido de la base de datos del Estudio de Verificación de Costos 2015 MINSAL. El precio fue actualizado utilizando la UF al 1 de julio 2018.

Búsqueda y Síntesis de Evidencia

 8.- ¿La costo-efectividad de la intervención beneficia la intervención o la comparación?
Favorece la comparación Probablemente favorece la comparación No favorece la intervención ni la comparación Probablemente favorece la intervención Favorece la intervención Varía Ningún estudio incluido

Probablemente favorece la intervención: Considerando que la intervención es «realizar coronariografía y eventual angioplastía de rutina precoz» y la comparación es » realizarla sólo en caso de presentar síntomas o isquemia», el equipo elaborador de la Guía opinó que probablemente la alternativa más costo-efectiva es «realizar coronariografía y eventual angioplastía de rutina precoz».

Consideraciones Adicionales

El panel señala que en personas donde se realiza la intervención se disminuyen las coronografías de emergencia, las cuales son de mayor costo.
Al disminuir los reinfartos, se disminuyen todos los costos asociados a ello.

Evidencia de investigación

No se encontraron estudios de costo efectividad ni evaluaciones económicas que respondan esta pregunta.

Búsqueda y Síntesis de Evidencia

 9.- ¿Cuál sería el impacto en equidad en salud?
Reducido Probablemente reducido Probablemente ningún impacto Probablemente aumentado Aumentado Varía No lo sé

Reducida: El equipo elaborador de la Guía consideró que la equidad en salud se reduciría si se recomendase «realizar coronariografía y eventual angioplastía de rutina precoz», dado que identificó grupos o contextos que actualmente tiene barreras de acceso importantes, ya sea en términos económicos, geográficos u otros.

Consideraciones Adicionales

La intervención evaluada no esta financiada por la Ley 19.966, lo que genera desigualdad de acceso.

 10.- ¿La intervención es aceptable para las partes interesadas?
No Probablemente no Probablemente sí Varía No lo sé

Sí: El equipo elaborador de la Guía consideró que «realizar coronariografía y eventual angioplastía de rutina precoz» SÍ es aceptable para las partes interesadas (profesionales de la salud, gestores de centros de salud, directivos de centros de salud, pacientes, cuidadores, seguros de salud, otros).

 11.- ¿Es factible implementar la intervención?
No Probablemente no Probablemente sí Varía No lo sé

Sí: El equipo elaborador de la Guía consideró que «realizar coronariografía y eventual angioplastía de rutina precoz» SÍ es factible implementar, contemplando la capacidad de la red asistencial, los recursos humanos disponibles a nivel país, recursos financieros, etc.