796 Effect of cardiac resynchronization therapy on left ventricular diastolic filling pattern in responder and non-responder patients

2005 ◽  
Vol 4 (1) ◽  
pp. 182-182
Keyword(s):  
Cardiac Resynchronization Therapy ◽  
Left Ventricular ◽  
Cardiac Resynchronization ◽  
Diastolic Filling ◽  
Resynchronization Therapy ◽  
Filling Pattern ◽  
Left Ventricular Diastolic Filling

Effect of Cardiac Resynchronization Therapy on Left Ventricular Diastolic Filling Pattern in Responder and Nonresponder Patients

2005 ◽  
Vol 28 (7) ◽  
pp. 654-660 ◽  
Author(s):  
AYSEN AGACDIKEN ◽  
AHMET VURAL ◽  
DILEK URAL ◽  
TAYFUN SAHIN ◽  
GULIZ KOZDAG ◽  
...  
Keyword(s):  
Cardiac Resynchronization Therapy ◽  
Left Ventricular ◽  
Cardiac Resynchronization ◽  
Diastolic Filling ◽  
Resynchronization Therapy ◽  
Filling Pattern ◽  
Left Ventricular Diastolic Filling

Left Ventricular Diastolic Filling Prior to Cardiac Resynchronization Therapy: Implications for Atrioventricular Delay Programming

2008 ◽  
Vol 31 (7) ◽  
pp. 838-844 ◽  
Author(s):  
ALAN D. WAGGONER ◽  
LISA DE LAS FUENTES ◽  
MITCHELL N. FADDIS ◽  
MARYE J. GLEVA ◽  
KAREN E. SPENCE ◽  
...  
Keyword(s):  
Cardiac Resynchronization Therapy ◽  
Left Ventricular ◽  
Cardiac Resynchronization ◽  
Diastolic Filling ◽  
Resynchronization Therapy ◽  
Atrioventricular Delay ◽  
Left Ventricular Diastolic Filling

scholarly journals Echocardiographic evaluation of cardiac resynchronization therapy

2006 ◽  
Vol 134 (11-12) ◽  
pp. 488-491 ◽  
Author(s):  
Milan Petrovic ◽  
Goran Milasinovic ◽  
Bosiljka Vujisic-Tesic ◽  
Vera Jelic ◽  
Zarko Calovic ◽  
...  
Keyword(s):  
Cardiac Resynchronization Therapy ◽  
Left Ventricular ◽  
Cardiac Resynchronization ◽  
Diastolic Filling ◽  
Lv Function ◽  
Mitral Insufficiency ◽  
Stroke Index ◽  
Resynchronization Therapy ◽  
Filling Time ◽  
The Mean

Introduction: Cardiac resynchronization therapy (CRT) is relatively new tool in treatment of chronic heart failure (HF), especially in dilated cardiomyopathy (DCM) with the left bundle branch block (LBBB). Objective: The Objective of our study was to assess the success of CRT in treatment of severe HF and the role of echocardiography in the evaluation of Results of such therapy. Method: The group consisted of 19 patients, 13 males and 6 females, mean age 58.0?8.22 years (47-65 years) with CRT applied for DCM, severe HF (NYHA III-IV), LBBB and ejection fraction (EF) <35%. The mean follow up was 17 months (6.5-30). Standard color Doppler echocardiography examination was performed in all patients before and after CRT. The parameters of systolic and diastolic left ventricular function, mitral insufficiency and the right ventricular pressure were evaluated. Results: Following the CRT, statistically significant improvement of the end-systolic LV dimension, cardiac output, cardiac index, myocardial performance index (p<0.01) and stroke index (p<0.05) was recorded. The mean value of EFLV was increased by 10% and LV fractional shortening improved by 6% in 10/16 (62%) patients. CRT resulted in decreased MR (p<0.01), prolonged LV diastolic filling time (p<0.02) and reduced RV pressure (p<0.05). Interventricular mechanical delay was shortened by 28% (18 msec) Conclusion: CRT has an important role in improvement of LV function and correction of ventricular asynchrony. The echocardiography is a useful tool for evaluation of HF treatment with CRT.

Prognostic Significance of Diastolic Filling Pattern in Cardiac Resynchronization Therapy

2008 ◽  
Vol 14 (7) ◽  
pp. S170
Author(s):  
Yasue Tsukishiro ◽  
Kensuke Matsumoto ◽  
Takatoshi Hayashi ◽  
Yasuyo Taniguchi ◽  
Kazuo Mizutani ◽  
...  
Keyword(s):  
Cardiac Resynchronization Therapy ◽  
Prognostic Significance ◽  
Cardiac Resynchronization ◽  
Diastolic Filling ◽  
Resynchronization Therapy ◽  
Filling Pattern

149 Acute effects on left ventricular systolic and diastolic function of a post-implant echocardiographic biventricular pacemaker optimization protocol following cardiac resynchronization therapy

2020 ◽  
Vol 41 (Supplement_1) ◽  
Author(s):  
P Barbier ◽  
M Guglielmo ◽  
C Agalbato ◽  
I Viscone ◽  
G Savioli
Keyword(s):  
Cardiac Resynchronization Therapy ◽  
Diastolic Function ◽  
Left Ventricular ◽  
Cardiac Resynchronization ◽  
Diastolic Filling ◽  
Acute Effects ◽  
Resynchronization Therapy ◽  
Biventricular Pacemaker ◽  
Filling Time

Abstract Background Cardiac resynchronization therapy (CRT) has demonstrated efficacy in at least 60% of patients with left ventricular (LV) failure and guideline-based indication to CRT. Whereas lack of response to CRT in up to a third of patients is multifactorial, a relevant factor is thought to be inadequate biventricular pacemaker (BIV) optimization (OPT) of either the intraventricular (VVd) or atrioventricular (AVd) delay Purpose In this echocardiographic observational study, we compared the acute effects on LV contractility, output, and diastolic function of BIV intra-implant QRS duration-based (OPTq) and post-implant Doppler echocardiography-based (OPTe) OPT of VVd and AVd. Methods In 160 patients with ischemic (n = 86) or idiopathic (n = 74) dilated cardiomyopathy, guideline-based different de novo CRT systems were implanted followed by immediate OPTq. Post-implant (10 days) OPTe was performed measuring: transmitral velocity-time integral (MVFi), % diastolic filling time (MVFt%), and E/A ratio, LV outflow integral (LVOTi), ejection time (LVOTt), and stroke volume (SV), isovolumic contraction (IVCT) and relaxation (IVRT) times, and LV myocardial performance index (MPI). The protocol included, sequentially: 1) Doppler measurements with OPTq settings; 2) measurements (separated by 3’ intervals) during a range (80/200 ms) of AVd with synchronous VVd; 3) algorithm-based AVd selection (at least 2 of following: increase in MVFi or SV, decrease in MPI); 4) measurements, with set AVd, during range of VVd: LV-first (-20, -40ms); RV-first (20, 40ms); synchronous; 5) VVd selection based on same algorithm used for AVd selection. Results. At OPTq, 58.6% of patients were set synchronous, 38.6% LV-first and 3% RV-first, with a 126 ± 29 mean AVd. This increased to 137 ± 36 after OPTe, when 49.1% were set synchronous, 38% LV-first and 12.4% RV-first, resulting in modifications of AVd and VVd in 59% and 36% of patients. Further, gain in SV with OPTe, compared to OPTq, was 8.3% (p&lt;.001), paralleled by an increase in MVFi (21.2 ± 8 cm vs 20.5 ± 8, p&lt;.001) and decrease in E/A (1.25 vs 1.45, p&lt;.001). The greatest increase in SV with OPTe was found in patients in whom both AVd and VVd were modified (n = 48; 81 ± 26 ml vs 71 ± 23, p&lt;.001) vs. patients without modifications (n = 42), or with change of either AVd or VVd (n = 70; 77 ± 20 vs 72 ± 20, p&lt;.01). Only in the first patient group both MVFi (22 ± 9 vs 20 ± 9, p&lt;.001) and MVFt% (52 ± 7 vs 49 ± 8, p=.004) increased, along with a decrease in MPI (.82±.31 vs .92 ± 36, p=.007) and IVRT (144 ± 51 vs 156 ± 62, p=.02. Conclusions These preliminary results point to a significant incremental role of post-implant OPTe to enhance LV output, contractility, and diastolic function in patients with CRT. The prognostic role of OPTe-determined AVd and VVD changes remains to be determined.

Evolution and prognostic significance of diastolic filling pattern in cardiac resynchronization therapy

2006 ◽  
Vol 112 (3) ◽  
pp. 322-328 ◽  
Author(s):  
Maria Cristina Porciani ◽  
Sergio Valsecchi ◽  
Gabriele Demarchi ◽  
Andrea Colella ◽  
Antonio Michelucci ◽  
...  
Keyword(s):  
Cardiac Resynchronization Therapy ◽  
Prognostic Significance ◽  
Cardiac Resynchronization ◽  
Diastolic Filling ◽  
Resynchronization Therapy ◽  
Filling Pattern
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