Velocidad de desinflado del sistema de liberación del stent en la angioplastia primaria: estudio aleatorizado

  1. Berta Vega Hernández 1
  2. Armando Pérez de Prado 2
  3. Juan Rondán 1
  4. Carlos Cuellas Ramón 2
  5. Jose Miguel Vegas Valle 1
  6. María López Benito 2
  7. Tomás Benito González 2
  8. Eduardo Segovia 1
  9. Felipe Fernández Vázquez 2
  10. Iñigo Lozano 1
  1. 1 Servicio de Cardiología, Hospital Universitario de Cabueñes, Gijón, Asturias, España
  2. 2 Servicio de Cardiología, Hospital Universitario de León, León, España
Revista:
REC: Interventional Cardiology

ISSN: 2604-7276 2604-7306

Año de publicación: 2022

Volumen: 4

Número: 2

Páginas: 91-98

Tipo: Artículo

DOI: 10.24875/RECIC.M21000230 DIALNET GOOGLE SCHOLAR lock_openDialnet editor

Otras publicaciones en: REC: Interventional Cardiology

Resumen

Introducción y objetivos: La embolización distal y el fenómeno de no-reflow son complicaciones frecuentes de la angioplastia primaria. La información disponible sobre la influencia de la velocidad de desinflado del sistema de liberación del stent es escasa. Nuestro objetivo es analizar la influencia de este factor en los resultados de la angioplastia primaria. Métodos: Entre diciembre de 2016 y febrero de 2019, todos los pacientes consecutivos con infarto de miocardio con elevación del segmento ST sometidos a coronariografía urgente en nuestro centro y que eran susceptibles de trombectomía, inhibidores de IIB-IIIA e implante directo de stent fueron aleatorizados 1:1 a un desinflado rápido del sistema de liberación (grupo 1, n = 103) o a un desinflado lento a 1 atm/s (grupo 2, n = 107). Por protocolo, no se permitió la predilatación previa ni posterior. Los objetivos primarios fueron el grado de blush miocárdico ≥ 2 y la resolución del segmento ST ≥ 70%. Los objetivos secundarios fueron el tamaño del infarto, la fracción de eyección al alta y a los 12 meses, y las mortalidades total y cardiovascular a los 12 meses. Resultados: El estudio se detuvo prematuramente con el 50% del tamaño muestral calculado por futilidad. Se encontró blush ≥ 2 en 77 (74,7%) frente a 79 (75,2%) pacientes (p = 0,93) y resolución del segmento ST ≥ 70% en 54 (53,9%) frente a 59 (55,5%) pacientes (p = 0,75) en los grupos 1 y 2, respectivamente, sin diferencias en ninguno de los objetivos secundarios. Conclusiones: En nuestra serie, la velocidad de desinflado del sistema de liberación del stent en la angioplastia primaria no modificó el blush miocárdico ni la resolución del segmento ST, y tampoco demostró tener influencia en los resultados clínicos, el tamaño del infarto según los biomarcadores ni la fracción de eyección.

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