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Intra-procedural imaging of the left atrial appendage: Implications for closure with the AmplatzerTM cardiac plug / Evaluación de la orejuela izquierda durante el cierre percutáneo con el dispositivo AmplatzerTM cardiac plug
Sobrino, Ayax; Tzikas, Apostolos; Freixa, Xavier; Pulido, Alicia; Chan, Jason; Garceau, Patrick; Ibrahim, Reda; Basmadjian, Arsène J..
  • Sobrino, Ayax; Montreal Heart Institute. Department of Medicine. Montreal. CA
  • Tzikas, Apostolos; Montreal Heart Institute. Department of Medicine. Montreal. CA
  • Freixa, Xavier; Montreal Heart Institute. Department of Medicine. Montreal. CA
  • Pulido, Alicia; Montreal Heart Institute. Department of Medicine. Montreal. CA
  • Chan, Jason; Montreal Heart Institute. Department of Medicine. Montreal. CA
  • Garceau, Patrick; Montreal Heart Institute. Department of Medicine. Montreal. CA
  • Ibrahim, Reda; Montreal Heart Institute. Department of Medicine. Montreal. CA
  • Basmadjian, Arsène J.; Montreal Heart Institute. Department of Medicine. Montreal. CA
Arch. cardiol. Méx ; 84(1): 17-24, ene.-mar. 2014. ilus
Article in English | LILACS | ID: lil-712906
ABSTRACT

Objectives:

To evaluate intra-procedural imaging with transesophageal echocardiography and angiography during left atrial appendage occlusion using the Amplatzer™ Cardiac Plug with regard to sizing and final device shape.

Methods:

Left atrial appendage ostium dimensions and diameter at a depth of 10 mm from the ostium were measured by transesophageal echocardiography (0-180°) and angiography (RAO 30° - Cranial 20°) in consecutive patients undergoing left atrial appendage occlusion using the ACP with an oversizing strategy of 10-20% relative to the baseline measurements. After delivery, ACP dimensions were measured and device shape was assessed.

Results:

Twenty-seven consecutive patients underwent successful uncomplicated left atrial appendage closure with Amplatzer™ Cardiac Plug. We found a significant difference between the largest and smallest left atrial appendage diameter measured with transesophageal echocardiography (22.3 ± 4.2 vs. 18.1 ± 4.1 mm, p <0.001). By the end of the procedure (by angiography), ACP had an optimal shape in 17 patients (63%), a strawberry-like shape in 7 patients (26%), and a square-like shape in 3 patients (11%). ACP was oversized on average by 1.5±2.7 and 3.3±2.3mm compared to transesophageal echocardiography and angiography, respectively. The final shape of the device was not significantly associated with the degree of oversizing.

Conclusions:

We found a considerable variability in the assessment of the left atrial appendage, using transesophageal echocardiography and angiography. The degree of Amplatzer™ Cardiac Plug expansion within the left atrial appendage and the final shape of the device were not associated with the degree of oversizing.
RESUMEN

Objetivos:

Evaluar las dimensiones de la orejuela izquierda antes del cierre percutáneo y la correlación de sus dimensiones finales y la forma del dispositivo Amplatzer™ cardiac plug con ecocardiografia transesofágica y angiografia.

Métodos:

Se midieron las dimensiones de la orejuela izquierda a una distancia de 10 mm a partir del ostium con ecocardiografia transesofágica (0 a 180°) y angiografia (RAO 30° Craneal 20°). Se utilizó una estrategia para sobre dimensionar el tamano del dispositivo del 10 al 20% con respecto a las mediciones iniciales. Se evaluaron las dimensiones y la forma final del dispositivo.

Resultados:

Se realizó el procedimiento en 27 pacientes. Se encontró una diferencia significativa entre el diámetro mayor y menor de orejuela izquierda medido por ecocardiografia transesofágica (22.3±4.2 vs 18.1 ±4.1 mm, p< 0.001). Una vez liberado el dispositivo, se encontró que en 17 pacientes (63%) adoptó una forma óptima, de "fresa" en 7 (26%) y cuadrada en 3 (11%). El tamaño del dispositivo seleccionado se sobre dimensionó en promedio 1.5 ± 2.7mm con la ecocardiografia transesofágica y 3.3 ± 2.3 mm con la angiografia. La forma final del dispositivo no se asoció de manera significativa con el grado de sobre dimensionamiento del mismo.

Conclusiones:

Existe variabilidad considerable en la evaluación de la orejuela izquierda entre la ecocardiografia transesofágica y la angiografia. No se encontró asociación entre el grado de expansión del dispositivo dentro de la orejuela izquierda ni de su forma final con el grado de sobre dimensionamiento del mismo.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Echocardiography, Transesophageal / Atrial Appendage / Surgery, Computer-Assisted / Septal Occluder Device / Intraoperative Care Type of study: Observational study / Risk factors Limits: Aged / Female / Humans / Male Language: English Journal: Arch. cardiol. Méx Journal subject: Cardiology Year: 2014 Type: Article Affiliation country: Canada Institution/Affiliation country: Montreal Heart Institute/CA

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Full text: Available Index: LILACS (Americas) Main subject: Echocardiography, Transesophageal / Atrial Appendage / Surgery, Computer-Assisted / Septal Occluder Device / Intraoperative Care Type of study: Observational study / Risk factors Limits: Aged / Female / Humans / Male Language: English Journal: Arch. cardiol. Méx Journal subject: Cardiology Year: 2014 Type: Article Affiliation country: Canada Institution/Affiliation country: Montreal Heart Institute/CA