O que há de certo na dissincronia?

Dyssynchrony Indices To Predict Response to Cardiac Resynchronization Therapy

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No indices predicted clinical response assessed by Minnesota Living with Heart Failure Questionnaire, 6-minute walk distance, and peak oxygen consumption.

Conclusions— These findings are consistent with the Predictors of Response to CRT study and do not support use of these dyssynchrony indices to guide use of CRT.

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Aqui o texto completo.

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O que há de certo na avaliação da Dissincronia ao Eco que não revela benefício para o implante?

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Texto completo demonstra ausência de benefício em se realizar um número enorme de medidas da Dissincronia.

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A resposta, está no texto:

Another important and critical question is how much of mechanical dyssynchrony is actually assessed by these echocardiographic parameters. If all proposed parameters do reflect the extent of mechanical dyssynchrony, there should be a consistency among the measurements. However, when we measured both peak systolic tissue velocity timing and peak systolic strain timing before and after CRT, there was a significant shortening of strain timing differences after CRT without a major change in peak systolic velocity timing.¹⁷ This finding suggests that different echocardiographic parameters measure different phenomena that may or may not be related to actual mechanical dyssynchrony.

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