916 Interventricular delay optimization in cardiac resynchronization therapy: Comparison of two echocardiographic methods
نویسندگان
چکیده
منابع مشابه
Doppler echocardiographic methods for optimization of the atrioventricular delay during cardiac resynchronization therapy.
Cardiac resynchronization therapy (CRT) is beneficial for a majority of patients with medically refractory heart failure due to severe left ventricular (LV) systolic dysfunction and prolonged interventricular conduction to improve symptoms and LV performance. An optimally programmed atrioventricular delay (AVD) during CRT can be also important to maximize the response in left ventricular functi...
متن کاملEchocardiographic optimization of the atrioventricular and interventricular intervals during cardiac resynchronization.
An optimized atrioventricular (AV) interval can maximize the benefits of cardiac resynchronization therapy (CRT). If programmed poorly, it may curtail beneficial effects of CRT. AV optimization will not convert non-responder to responder, but may convert under-responder to improved status. There are many echocardiographic techniques for AV optimization but there is no universally accepted gold ...
متن کاملCardiac resynchronization therapy during rest and exercise: comparison of two optimization methods
AIMS Optimal exercise programming of cardiac resynchronization therapy (CRT) devices is unknown. We aimed to: (i) investigate variations in optimal atrioventricular (AV) and interventricular (VV) delays from rest to exercise, assessed by both echocardiography and an automated intracardiac electrogram (IEGM) method; (ii) evaluate the acute haemodynamic impact of CRT optimization performed during...
متن کاملRate-dependent AV delay optimization in cardiac resynchronization therapy.
BACKGROUND During cardiac resynchronization therapy (CRT), cardiac performance is dependent on an optimized atrioventricular delay (AVD). However, the optimal AVD at different heart rates has not been defined yet during CRT. METHOD The effects of an increase in heart rate by pacing or physical exercise on optimal AVD were studied in 36 patients with biventricular pacemakers/defibrillators. Th...
متن کامل[Echocardiographic assessment of cardiac resynchronization therapy].
Mailing address: Carlos Eduardo Suaide Silva OMNI-CCNI Rua Cubatão, 726 04013-002 São Paulo, SP Brazil E-mail: [email protected] Received for publication: 10/20/04 Accepted for publication: 3/4/05 English version by Stela Maris Costalonga Heart failure is one of the major causes of mortality, morbidity, and hospitalization in patients older than 60 years, accounting for 1 to 2% of the total ex...
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ژورنال
عنوان ژورنال: European Journal of Echocardiography
سال: 2006
ISSN: 1525-2167
DOI: 10.1016/s1525-2167(06)60571-4