TY - JOUR
T1 - Prognostic implications of invasive hemodynamics during cardiac resynchronization therapy
T2 - Stroke work outperforms dP/dtmax
AU - Wouters, Philippe C
AU - Zweerink, Alwin
AU - van Everdingen, Wouter M
AU - Ghossein, Mohammed A
AU - de Roest, Gerben J.
AU - Cramer, Maarten J
AU - Doevendans, Pieter A F M
AU - Vernooy, Kevin
AU - Prinzen, Frits W
AU - Allaart, Cornelis P
AU - Meine, Mathias
N1 - Funding Information: This study was conducted with an unrestricted research grant from St. Jude Medical (St. Paul, MN). Publisher Copyright: © 2023 Heart Rhythm Society
PY - 2023/12
Y1 - 2023/12
N2 - Background: Invasive measurements of left ventricular (LV) hemodynamic performance can evaluate acute response to cardiac resynchronization therapy (CRT). Objective: The study sought to determine which metric, maximum rate of LV pressure rise (LV dP/dt max) or LV stroke work (LVSW), is more strongly associated with long-term prognosis. Methods: CRT patients were prospectively included from 3 academic centers. Invasive pressure-volume loop measurements during implantation were performed, and LV dP/dt max and LVSW were determined at baseline and during biventricular pacing (BVP) as well as their relative increase (%Δ). Hazard ratios (HRs) for the primary outcome of 8-year all-cause mortality were derived using Cox proportional hazards. The secondary endpoint was echocardiographic response, defined as 6-month LV end-systolic volume reduction ≥15%. Results: Paired data from 82 patients were analyzed (67% male; age 66 ± 9 years; QRS duration 158 ± 22 ms, median survival time 72 months). Survival was better when LVSW during BVP was ≥4400 mL∙mm Hg (HR 0.21, 95% CI 0.08–0.58, P < .003) or when ΔLVSW% was ≥10% (HR 0.22, 95% CI 0.08–0.65, P = .006). In multivariate analysis, following direct comparison of continuous measures of acute ΔLV dP/dt max% and ΔLVSW%, only ΔLVSW% remained associated with the primary endpoint (HR 0.982 per percentage point, P = .028). In contrast to LV dP/dt max (all P > .05), significant associations with echocardiographic response were found for stroke work during BVP (area under the receiver-operating characteristic curve 0.745, P = .001) and ΔLVSW% (area under the receiver-operating characteristic curve 0.803, P < .001). Conclusion: Stroke work, but not LV dP/dt max, is consistently associated with long-term prognosis and response after CRT. Our results therefore favor the use of stroke work as the hemodynamic parameter to predict long-term outcome after CRT.
AB - Background: Invasive measurements of left ventricular (LV) hemodynamic performance can evaluate acute response to cardiac resynchronization therapy (CRT). Objective: The study sought to determine which metric, maximum rate of LV pressure rise (LV dP/dt max) or LV stroke work (LVSW), is more strongly associated with long-term prognosis. Methods: CRT patients were prospectively included from 3 academic centers. Invasive pressure-volume loop measurements during implantation were performed, and LV dP/dt max and LVSW were determined at baseline and during biventricular pacing (BVP) as well as their relative increase (%Δ). Hazard ratios (HRs) for the primary outcome of 8-year all-cause mortality were derived using Cox proportional hazards. The secondary endpoint was echocardiographic response, defined as 6-month LV end-systolic volume reduction ≥15%. Results: Paired data from 82 patients were analyzed (67% male; age 66 ± 9 years; QRS duration 158 ± 22 ms, median survival time 72 months). Survival was better when LVSW during BVP was ≥4400 mL∙mm Hg (HR 0.21, 95% CI 0.08–0.58, P < .003) or when ΔLVSW% was ≥10% (HR 0.22, 95% CI 0.08–0.65, P = .006). In multivariate analysis, following direct comparison of continuous measures of acute ΔLV dP/dt max% and ΔLVSW%, only ΔLVSW% remained associated with the primary endpoint (HR 0.982 per percentage point, P = .028). In contrast to LV dP/dt max (all P > .05), significant associations with echocardiographic response were found for stroke work during BVP (area under the receiver-operating characteristic curve 0.745, P = .001) and ΔLVSW% (area under the receiver-operating characteristic curve 0.803, P < .001). Conclusion: Stroke work, but not LV dP/dt max, is consistently associated with long-term prognosis and response after CRT. Our results therefore favor the use of stroke work as the hemodynamic parameter to predict long-term outcome after CRT.
KW - CRT
KW - Cardiac resynchronization therapy
KW - Prognosis
KW - Stroke work
KW - dPdt
UR - http://www.scopus.com/inward/record.url?scp=85178121253&partnerID=8YFLogxK
U2 - https://doi.org/10.1016/j.hroo.2023.11.003
DO - https://doi.org/10.1016/j.hroo.2023.11.003
M3 - Article
C2 - 38204465
SN - 2666-5018
VL - 4
SP - 777
EP - 783
JO - Heart Rhythm O2
JF - Heart Rhythm O2
IS - 12
ER -