Key result
Acute changes in Stroke Work and dP/dt(max) during biventricular pacing showed no significant correlation (R = 0.06, P = ns), indicating they are not interchangeable for evaluating CRT response.
Why the study?
Do acute changes in dP/dt(max) correlate with changes in Stroke Work during cardiac resynchronization therapy in CRT candidates?
Observational (n=34)
Do acute changes in dP/dt(max) correlate with changes in Stroke Work during cardiac resynchronization therapy in CRT candidates?
Effect estimate: R = 0.06
p-value: p=ns
Acute changes in dP/dt(max) and Stroke Work during CRT do not correlate, indicating these haemodynamic parameters are not interchangeable for evaluating acute CRT response.
No takes yet. Share an insight, caveat, or question.
dP/dt(max) should not proxy stroke work for acute CRT assessment; leaves open which haemodynamic metric best predicts response.
Roest et al. (2009) conducted an observational in Cardiac resynchronization therapy candidates (n=34). Biventricular pacing vs. Baseline was evaluated on Correlation between percentage change in dP/dt(max) and Stroke Work (R = 0.06, p=ns). Acute changes in Stroke Work and dP/dt(max) during biventricular pacing showed no significant correlation (R = 0.06, P = ns), indicating they are not interchangeable for evaluating CRT response.
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