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[Biventricular pacing].

Hiroshi Kasanuki¹, Naoki Matuda

¹Department of Cardiology, Heart Institute of Japan, Tokyo Women's Medical University, Tokyo, Japan.

Nihon Geka Gakkai Zasshi

|October 22, 2002

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Biventricular pacing improves heart function in chronic heart failure patients with wide QRS complexes. This therapy enhances hemodynamics and quality of life for those with ventricular conduction abnormalities.

Area of Science:

Cardiology
Biomedical Engineering

Context:

Chronic heart failure (CHF) is often associated with ventricular conduction abnormalities, leading to dyssynchrony.
Ventricular dyssynchrony in CHF causes impaired cardiac function, including abnormal wall motion and mitral regurgitation.

Purpose:

To evaluate the efficacy of biventricular pacing as an adjunct therapy for advanced heart failure patients with ventricular conduction abnormalities.
To assess the hemodynamic and clinical benefits of biventricular pacing in this patient population.

Summary:

Biventricular pacing acutely improves left ventricular contractility, blood pressure, and diastolic filling time while reducing mitral regurgitation and pulmonary wedge pressure.
Pacemaker implantation leads to significant improvements in functional class, exercise capacity, quality of life, echocardiographic parameters, and neurohormonal markers.

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Impact:

Biventricular pacing offers a promising therapeutic option for selected CHF patients with significant QRS widening (> or = 150 ms) and conduction delays.
This intervention can ameliorate symptoms and improve long-term outcomes in patients suffering from advanced heart failure and ventricular dyssynchrony.