Comparative analysis of patients with cardiac resynchronization therapy depending on septal flash presence

Aim. To assess clinical and morpho-functional features of the heart in patients with congestive heart failure (CHF) after cardiac resynchronization therapy (CRT) depending on septal flash (SF).Materials and methods. The study enrolled 60 patients (92.0% men, 8.0% women; mean age 54.5 ± 10.4 years; 70.0% had left bundle branch block (LBBB) with II-IV NYHA functional class CHF. SF (mechanical anomaly of interventricular septum (IVS) movement) is determined according to speckle tracking echocardiography (STE) and tissue Doppler imaging (TDI). Patients were divided into two groups: with SF (I group, n = 10) and without SF (II group, n = 50).Results. At baseline the groups did not differ in main clinical characteristics including QRS width and LBBB. Mechanical interventricular delay was higher in group I (65.5 ms [53.5; 95.5] vs 31.0 ms [15.0; 64.5]; р = 0.026). Basal segment of IVS longitudinal strain (LS) delay by STE (257.5 ms [156.3; 293.8] vs 323.5 ms [262.5; 377.8]; р = 0.024) and LS delay by TDI (204.0 ms [170.8; 260.3] vs 434.0 ms [370.0; 489.0]; р < 0.001) were significantly lower in group with SF. According to logistic regression a combination of LS apical segment of IVS by STE (HR 0.607; 95% Cl 0.369–0.989; р = 0.048) and LS delay basal segment of IVS by TDI (HR 0.969; 95% Cl 0.0945–0.993; р = 0.011) had a relationship with SF. According to ROC analysis sensitivity and specificity of this model in SF definition in patients with CRT were 87.5% and 86.5% (AUC = 0.939; p < 0.01). Mean changes in LV ESV (52.0 ml [32.5; 72.8] vs 19,0 ml [1.3; 40.0]; р = 0.002) and LV ejection fraction (EF) (13.0% [5.5; 18.8] vs 4.0% [2.0; 9.0]; р = 0.002) were significantly higher in patients with SF. All patients in group I had a superresponse to CRT (ESV LV decrease ≥30%); 42.0% patients in group II were superresponders (р < 0.001).Conclusion. SF could be determined by STE and TDI. SF is associated with severe mechanical interventricular dyssynchrony and superresponse to CRT. Patients with SF have significantly better LV EF dynamics after CRT.

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P539Comparative analysis of patients with cardiac resynchronization therapy depending on septal flash

EP Europace ◽

10.1093/europace/euaa162.272 ◽

2020 ◽

Vol 22 (Supplement_1) ◽

Author(s):

N Shirokov ◽

V Kuznetsov ◽

A Soldatova ◽

L Malishevskii ◽

D Krinochkin

Keyword(s):

Cardiac Resynchronization Therapy ◽

Interventricular Septum ◽

Functional Class ◽

Doppler Imaging ◽

Cardiac Resynchronization ◽

Resynchronization Therapy ◽

Basal Segment ◽

Group I ◽

Functional Features ◽

Septal Flash

Abstract Background Mechanical dyssynchrony (MD) and superresponse (SR) to cardiac resynchronisation therapy (CRT) relationship is still debated. Aim To assess clinical and morpho-functional features of the heart in patients with congestive heart failure (CHF) after cardiac resynchronization therapy (CRT) depending on septal flash (SF). Materials and methods The study enrolled 60 patients (92.0% men, 8.0% women; mean age 54.5 ± 10.4 years; 70.0% had left bundle branch block (LBBB) with II-IV NYHA functional class CHF. SF (mechanical anomaly of interventricular septum (IVS) movement) is determined according to speckle tracking echocardiography (STE) and tissue Doppler imaging (TDI). Patients were divided into two groups: with SF (I group, n = 10) and without SF (II group, n = 50). Results At baseline the groups did not differ in main clinical characteristics including QRS width and LBBB. Mechanical interventricular delay was higher in group I (65.5 ms [53.5;95.5] vs 31.0 ms [15.0;64.5]; р=0.026). Basal segment of IVS longitudinal strain (LS) delay by STE (257.5 ms [156.3;293.8] vs 323.5 ms [262.5;377.8]; р=0.024) and LS delay by TDI (204.0 ms [170.8;260.3] vs 434.0 ms [370.0;489.0]; р<0.001) were significantly lower in group with SF. According to logistic regression a combination of LS apical segment of IVS by STE (HR 0.607; 95% Cl 0.369 – 0.989; р=0,048) and LS delay basal segment of IVS by TDI (HR 0.969; 95% Cl 0.0945 – 0.993; р=0.011) had a relationship with SF. According to ROC analysis sensitivity and specificity of this model in SF definition in patients with CRT were 87.5% and 86.5% (AUC = 0.939; p < 0.01). Mean changes in LV ESV (52.0 ml [32.5;72.8] vs 19,0 ml [1.3;40.0]; р=0.002) and LV ejection fraction (EF) (13.0% [5.5;18.8] vs 4.0% [2.0;9.0]; р=0.002) were significantly higher in patients with SF. All patients in group I had a super-response to CRT (ESV LV decrease ≥30%); 42.0% patients in group II were superresponders (р<0.001). Conclusion SF could be determined by STE and TDI. SF is associated with severe mechanical interventricular dyssynchrony and superresponse to CRT. Patients with SF have significantly better LV EF dynamics after CRT. Abstract Figure. Septal Flash in patient with SR to CRT

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Relationship of septal flash with electromechanical dyssynchrony and super-response to cardiac resynchronization therapy

Science and Innovations in Medicine ◽

10.35693/2500-1388-2020-5-2-93-98 ◽

2020 ◽

Vol 5 (2) ◽

pp. 93-98

Author(s):

Nikita E. Shirokov ◽

Vadim A. Kuznetsov ◽

Lev M. Malishevskii ◽

Viktor V. Todosiichuk ◽

Anna M. Soldatova ◽

...

Keyword(s):

Cardiac Resynchronization Therapy ◽

Interventricular Septum ◽

Left Ventricular ◽

Functional Class ◽

Doppler Imaging ◽

Cardiac Resynchronization ◽

Resynchronization Therapy ◽

Group I ◽

Relationship Of ◽

Septal Flash

Objectives - to identify a relationship of septal flash (SF) with a super-response to cardiac resynchronization therapy (CRT), apical rocking (AR) and signs of left bundle brunch block (LBBB) in patients with congestive heart failure (CHF). Material and methods. The study included 38 patients (92.1% men; mean age 54.3±9.4 years) with II-IV NYHA functional class CHF. Left bundle brunch block (LBBB) was diagnosed according to 3 criteria: American Heart Association (AHA) 2009, European Society of Cardiology (ESC) 2013, Strauss. Septal flash (SF, mechanical anomaly of interventricular septum (IVS) movement) is determined according to speckle tracking echocardiography (STE) and tissue Doppler imaging (TDI). The patients were divided into two groups: with SF (I group, n=8) and without SF (II group, n=30). Mean follow-up was 34.5 [13.8;55.3]. Results. At baseline the groups did not differ in main clinical characteristics including QRS. The left ventricular (LV) ejection fraction (EF) was higher in group I (33.1%±1.7 and 30.0%±4.0; p=0.044). Basal segment of IVS longitudinal strain (LS) delay by STE (258.0 [144.0;294.0] ms vs 323.5 [273.3;385.0] ms; р=0.024) and LS delay by TDI (176.0 [146.8;287.3] ms vs 415.5 [315.8;493.5] ms; р30%); 53.1% of patients in group II were super responders (р

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Relationship between left bundle branch block patterns and super-response to cardiac resynchronization therapy in patients with heart failure

Russian Journal of Cardiology ◽

10.15829/1560-4071-2021-4227 ◽

2021 ◽

Vol 26 (7) ◽

pp. 4227

Author(s):

N. E. Shirokov ◽

V. A. Kuznetsov ◽

V. V. Todosiychuk ◽

A. M. Soldatova ◽

D. V. Krinochkin

Keyword(s):

Cardiac Resynchronization Therapy ◽

Left Bundle Branch Block ◽

Interventricular Septum ◽

Left Ventricular ◽

Doppler Imaging ◽

Cardiac Resynchronization ◽

Resynchronization Therapy ◽

Bundle Branch Block ◽

Septal Wall ◽

Group I

Aim. To assess a relationship of left bundle branch block (LBBB) patterns defined by electrocardiography (ECG) and echocardiography with super-response (SR) to cardiac resynchronization therapy (CRT).Material and methods. Sixty patients (mean age, 54,5±10,4 years) were examined at baseline and during follow-up (10,6±3,6 months). Patients were divided into groups: group I (n=31) — decrease of left ventricular end-systolic volume (ESV) ≥30% (super-responders) and II group (n=29) — decrease of LV ESV <30% (non-super-responders). Three strain-markers of LBBB assessed by tissue Doppler imaging (TDI) and speckle tracking echocardiography (STE) were used: early contraction of basal or midventricular segment in the septal wall and early stretching of basal or midventricular segment in the lateral wall (marker 1); early peak contraction of the septal wall occurred in the first 70% of the systolic ejection phase (marker 2, septal flash (SF)); early stretching wall that showed peak contraction after aortic valve closure (marker 3). The classical LBBB pattern was defined if all three strain-markers were present. The heterogeneous LBBB pattern was defined if two from three strain-markers were present.Results. At baseline, groups did not differ in main clinical characteristics, including QRS width and LBBB assessed by ECG. Mechanical abnormalities were found only in group I: SF (32,3% vs 0,0%; p=0,001) and apical rocking (19,4% vs 0,0%; p=0,024), as well as classic LBBB mechanical pattern (20,8% vs 0,0%; p=0,05). The complex of heterogeneous LBBB mechanical pattern (odds ratio (OR), 7,512; 95% CI, 1,434-39,632; р=0,025), interventricular mechanical delay (OR, 1,037; 95% CI, 1,005-1,071; р=0,017) and longitudinal strain of interventricular septum mid segment (OR, 0,726; 95% CI, 0,540-0,977; р=0,035) had an independent relationship with SR. According to the ROC analysis, the sensitivity and specificity of model in SR prediction were 77,3% and 91,3% (AUC=0,862; p<0,001).Conclusion. SR is associated with both LBBB mechanical patterns assessed by STE and TDI. LBBB defined by ECG did not have significant association with SR to CRT.

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Does the lack of left ventricular reverse remodeling always mean non - response to cardiac resynchronization therapy?

Terapevticheskii arkhiv ◽

10.26442/00403660.2019.12.000102 ◽

2019 ◽

Vol 91 (12) ◽

pp. 10-15

Author(s):

V A Kuznetsov ◽

A M Soldatova ◽

T N Enina ◽

D V Krinochkin ◽

S M Dyachkov

Keyword(s):

Cardiac Resynchronization Therapy ◽

Left Ventricular ◽

Functional Class ◽

Cardiac Resynchronization ◽

Left Ventricular Ejection ◽

Reverse Remodeling ◽

Resynchronization Therapy ◽

Ventricular Ejection Fraction ◽

Left Ventricular Reverse Remodeling ◽

Functional Features

Aim. To evaluate clinical, morphological, functional features and mortality level in patients with different value of left ventricular reverse remodeling after cardiac resynchronization therapy (CRT). Materials and methods. The study enrolled 112 patients (mean age 54.6±9.9 years, 83.5% men) with left ventricular ejection fraction (LVEF) І35%, NYHA functional class II-IV. We enrolled patients with QRS width >120 ms or QRS

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Abstract 1604: Response to Cardiac Resynchronization Therapy Differs Between Patients With and Without Previous Right Ventricular Pacing

Circulation ◽

10.1161/circ.116.suppl_16.ii_335-b ◽

2007 ◽

Vol 116 (suppl_16) ◽

Author(s):

Andrea M Thelen ◽

Christopher L Kaufman ◽

Kevin V Burns ◽

Daniel R Kaiser ◽

Aaron S Kelly ◽

...

Keyword(s):

Heart Failure ◽

Cardiac Resynchronization Therapy ◽

Systolic Function ◽

Radial Strain ◽

Left Ventricular ◽

Doppler Imaging ◽

Cardiac Resynchronization ◽

Resynchronization Therapy ◽

Peak Displacement

Background: Previous large studies on the effects of cardiac resynchronization therapy (CRT) in patients with heart failure have generally excluded patients previously paced from the right ventricle (RV). Previously RV paced patients (RVp) can exhibit an iatrogenic cause of dyssynchrony and reduced systolic function and thus, may respond differently to CRT than patients not previously RV paced (nRVp). The purpose of this study was to test the hypothesis that RVp patients have greater improvements in left ventricular systolic function, volumes, and dyssynchrony in response to CRT than nRVp. Methods: Standard echocardiograms with tissue Doppler imaging were performed before and after chronic CRT in RVp (n = 21, 16 male) and nRVp (n = 70, 54 male) heart failure patients. Ejection fraction (EF), left ventricular end diastolic (LVEDV) and systolic (LVESV) volumes were calculated using the biplane Simpson’s method. Longitudinal dyssynchrony was calculated as the standard deviation of time to peak displacement (TT-12) of 12 segments in the apical views. Using mid-ventricular short axis views and speckle-tracking methods, radial dyssynchrony (Rad dys ) was calculated as the maximal time difference between six myocardial segments for peak radial strain. Echo response was defined as ≥ 15% reduction in LVESV. Results are reported as mean ± SD. Results: Significant baseline differences (p < 0.05) were observed between groups (RVp vs. nRVp) for age (74 ± 13 vs. 67 ± 13 year), follow-up time (6.1 ± 1.8 vs. 4.6 ± 2.1 months), LVEDV (154.3±50.8 vs.185.3±56.9 mL), and a trend for LVESV (112.4 ± 40.6 vs. 134.9 ± 47 mL, p = 0 .05). No differences were observed for EF, etiology of heart failure, and dyssynchrony measures between groups at baseline. Echo response rate was significantly ( p < 0.05) greater in RVp (76%) than nRVp (57%). After adjusting for baseline differences, RVp had greater improvement in EF (14 ± 9 vs. 8 ± 7%, p < 0.05) and LVESV (−33 ± 18 vs. −20 ± 21%, p < 0.05). After adjustment for follow-up time, no difference was observed for change in dyssynchrony between groups. Conclusion: RVp patients upgraded to CRT exhibit greater improvements in systolic function and ventricular remodeling as compared to nRVp patients.

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Abstract 3286: Prediction for Long-term Effect Of Cardiac Resynchronization Therapy: Comparison Between Tissue Doppler Imaging And Speckle Tracking Imaging

Circulation ◽

10.1161/circ.116.suppl_16.ii_740-a ◽

2007 ◽

Vol 116 (suppl_16) ◽

Author(s):

Azusa Furugen ◽

Naoki Matsuda ◽

Kyomi Ashihara ◽

Asako Mochida ◽

Morio Shoda ◽

...

Keyword(s):

Cardiac Resynchronization Therapy ◽

Tissue Doppler Imaging ◽

Speckle Tracking ◽

Tissue Doppler ◽

Doppler Imaging ◽

Cardiac Resynchronization ◽

Speckle Tracking Imaging ◽

Resynchronization Therapy ◽

Time To Peak ◽

Qrs Duration

Recent studies have demonstrated that the septal-to-posterior motion delay (SPWMD) assessed by M-mode echo and the longitudinal intra-LV dyssynchrony assessed by tissue Doppler imaging (TDI) can predict chronic effects of cardiac resynchronization therapy (CRT). A newly developed 2D speckle tracking imaging (STI) has enabled assessment of not only longitudinal but circumferential regional strain of LV. We investigated the usefulness of STI in selecting patients for CRT. Methods: Fifty-one patients with heart failure symptoms and QRS duration>120 ms underwent standard echocardiography, TDI and STI before CRT. Time to peak systolic velocity was measured in 12 basal and mid LV segments in apical views by TDI. The time difference between the basal septal and the basal lateral segments was calculated (TDI-SLPVD).The standard deviation of those among 12 segments was calculated (TDI-SD). Time to peak circumferential strain, radial strain and longitudinal strain were measured in basal segments in parasternal short axis and apical views by STI. The time difference between the septal and the lateral segments was calculated (CS-SL, RS-SL and LS-SL). A responder to CRT was defined as a patient whose NYHA class improved by >1 class and whose LVESV reduced by >10% at 6 months after CRT. Results: Thirty-six patients (71%) responded to CRT. CS-SL showed high sensitivity and specificity for predicting the responders at a cut-off point of 124 ms (Table ). The area under the ROC curve (AUC) of CS-SL was larger than that of QRS duration, SPWMD, TDI-SLPVD, TDI-SD, RS-SL and LS-SL. Conclusion: Assessment of circumferential dyssynchrony using STI seems useful in selecting patients for CRT.

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