Cardiac resynchronization therapy for ischemic myopathy

2016 ◽  
Vol 25 (5) ◽  
pp. 383-385
Author(s):  
Shinichiro Ikeda ◽  
Hideo Yoshida ◽  
Keiji Yunoki ◽  
Kunikazu Hisamochi
Keyword(s):  
New York ◽  
Cardiac Resynchronization Therapy ◽  
Heart Association ◽  
Left Ventricular ◽  
Functional Class ◽  
Cardiac Resynchronization ◽  
Resynchronization Therapy ◽  
Mitral Valve Plasty ◽  
New York Heart Association ◽  
The Right

We performed coronary artery grafting, mitral valve plasty, and tricuspid plasty in a 75-year-old man who had double-vessel coronary disease and moderate mitral and tricuspid insufficiency. Preoperative transthoracic echocardiography revealed an ejection fraction of 34% and dyssynchronous wall motion of the septum and free wall. We placed pacing leads on the right ventricular outlet and posterior left ventricular wall for cardiac resynchronization therapy. The dyssynchrony disappeared postoperatively and the New York Heart Association functional class improved from IV to I.

Effect of Cardiac Resynchronization Therapy in Patients With New York Heart Association Functional Class IV Heart Failure

2010 ◽  
Vol 106 (8) ◽  
pp. 1146-1151 ◽  
Author(s):  
Rutger J. van Bommel ◽  
Eva van Rijnsoever ◽  
C. Jan Willem Borleffs ◽  
Victoria Delgado ◽  
Nina Ajmone Marsan ◽  
...  
Keyword(s):  
Heart Failure ◽  
New York ◽  
Cardiac Resynchronization Therapy ◽  
Heart Association ◽  
Functional Class ◽  
Cardiac Resynchronization ◽  
Resynchronization Therapy ◽  
New York Heart Association ◽  
Class Iv

scholarly journals Cardiac Resynchronization Therapy using Left-Bundle-Branch Area and Left Ventricular Pacing

2020 ◽  
Author(s):  
Xiang-Fei Feng ◽  
Ling-Chao Yang ◽  
Rui Zhang ◽  
Yi Yu ◽  
Bo Liu ◽  
...  
Keyword(s):  
New York ◽  
Cardiac Resynchronization Therapy ◽  
Biventricular Pacing ◽  
Operation Time ◽  
Heart Association ◽  
Left Ventricular ◽  
Functional Class ◽  
Cardiac Resynchronization ◽  
Lv Function ◽  
Resynchronization Therapy

Introduction: Cardiac resynchronization therapy via biventricular pacing is an established therapy for patients with heart failure. However, high nonresponder rates and inability to predict response remains a challenge. Recently left bundle branch area pacing (LBBAP) has been shown to be feasible and may also improve clinical outcomes. In this article we describe sequential LBBAP followed by left ventricular (LV) pacing (LOT-CRT) and assess the feasibility of LOT-CRT. Methods: The RV implantation site was positioned and the LBBAP lead was implanted using our methods. The QRS duration (QRSd) at baseline, during LBBAP, biventricular pacing, and LOT-CRT was measured. Results: LOT-CRT was successful in 5 patients (age 71.8 ± 5.1 years, men 3, ischemic 3). The QRSd at baseline was 158.0 ± 13.0 ms and significantly narrowed to 117.0 ± 6.7 ms during LOT-CRT (P < 0.01). During 3-month follow-up, LV ejection fraction improved from 32.8 ± 5.2 % to 45.0 ± 5.1% (P < 0.01), and New York Heart Association functional class changed from 3.25 ± 0.5 to 2.5 ± 0.6 (P < 0.05). A decrease in left ventricular end-diastolic dimension was observed, with widening from (68.2 ± 12.3) mm at baseline to (62.2 ± 11.3) mm at pacing (P < 0.05). The length of operation time was (152.0 ± 31.1) min. Conclusions: The study demonstrates that LOT-CRT is clinically feasible in patients with systolic HF and LBBB. LOT-CRT was associated with significant narrowing of QRSd and improvement in LV function, especially in patients with ischemic cardiomyopathy.

Results of the randomized studies on cardiac resynchronization therapy and the reevaluation of the cardiac ventricular activation in left bundle branch block

2013 ◽  
Vol 154 (18) ◽  
pp. 688-693 ◽  
Author(s):  
István Préda
Keyword(s):  
New York ◽  
Cardiac Resynchronization Therapy ◽  
Left Bundle Branch Block ◽  
Heart Association ◽  
Left Ventricular ◽  
Cardiac Resynchronization ◽  
Qrs Complex ◽  
Resynchronization Therapy ◽  
Bundle Branch Block ◽  
New York Heart Association

If New York Heart Association Class II–IV heart failure is present, and ejection fraction ≤35%, electrocardiographic QRS width ≥ 120 ms in the presence of left bundle branch block, cardiac resynchronization therapy is indicated. Reevaluation of the data of cardiac resynchronization trials and electrophysiologic findings in left bundle branch block provided evidence that “true” left bundle branch block requires a QRS width of ≥130 ms (in woman) and ≥140 ms (in man). In “true” left bundle branch block, after the 40th ms of the QRS notched/slurred R waves are characteristic in minimum two of I, aVL, V1, V2, V5 and V6 leads, in addition to a ≥40 ms increase of the QRS complex, as compared to the original QRS complex. In contrast, slowly and continuously widened “left bundle branch block like” QRS patterns are mostly occur in left ventricular hypertrophy or in a metabolic/infiltrative disease. Orv. Hetil., 2013, 154, 688–693.

scholarly journals Left cardiac atrioventricular delay and inter-ventricular delay in cardiac resynchronization therapy responder and non-responder

2016 ◽  
Vol 2 (1) ◽  
pp. 247-250 ◽  
Author(s):  
Matthias Heinke ◽  
Helmut Kühnert ◽  
Tobias Heinke ◽  
Jonas Tumampos ◽  
Gudrun Dannberg
Keyword(s):  
New York ◽  
Cardiac Resynchronization Therapy ◽  
Biventricular Pacing ◽  
Heart Association ◽  
Left Ventricular ◽  
Cardiac Resynchronization ◽  
Resynchronization Therapy ◽  
Atrioventricular Delay ◽  
Surface Ecg ◽  
New York Heart Association

AbstractCardiac resynchronization therapy is an established therapy for heart failure patients. The aim of the study was to evaluate electrical left cardiac atrioventricular delay and interventricular desynchronization in sinus rhythm cardiac resynchronization therapy responder and non-responder. Cardiac electrical desynchronization were measured by surface ECG and focused transesophageal bipolar left atrial and left ventricular ECG before implantation of cardiac resynchronization therapy defibrillators. Preoperative electrical cardiac desynchronization was 195.7 ± 46.7 ms left cardiac atrioventricular delay and 74.8 ± 24.5 ms interventricular delay in cardiac resynchronization therapy responder. Cardiac resynchronization therapy responder New York Heart Association class improved during long term biventricular pacing. Transesophageal left cardiac atrioventricular delay and interventricular delay may be additional useful parameters to improve patient selection for cardiac resynchronization therapy.

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