Clinical effect of biventricular pacing on patients with congestive heart failure: report of ten cases

AIM:To observe the clinical effect of biventricular pacing in patients with congestive heart failure (CHF). METHODS: Three-chamber biventricular pacemakers (nine InSync III 8042 and one FRONTIER II 5596) were installed in ten patients (six males and four females) with a mean age of (62±10) years with repeated CHF who had not responded well to medication. Heart functions and ECG were observed before and after the installation. RESULTS: Three-chamber biventricular pacemakers were successfully installed in all ten patients. The pacing mode was VAT and the total percentage of ventricular pacing was >90%. Significant clinical improvements were achieved as evidenced by better results of heart functions, 6-min walk, left ventricular ejection fraction and left ventricular end-diastolic diameter (P<0.05, P<0.01). CONCLUSION: Biventricular pacing can improve cardiac functions and enhance the quality of life in patients with congestive heart failure.