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Date Published: 09/09/2023
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Views pdf: 79
DOI: https://doi.org/10.51298/vmj.v529i2.6484
Issue
Vol. 529 No. 2 (2023)
Section
Các bài báo
How to Cite
Nguyễn, T. T., Kiều, N. D., Hoàng, A. T., & Nguyễn, C. L. (2023). TECHNIQUES FOR OPTIMIZATION OF SMALL VENTRICULAR CONDUCTION INTERVAL IN ÐTTÐBT-INSTALLED PATIENTS. Vietnam Medical Journal, 529(2). https://doi.org/10.51298/vmj.v529i2.6484

TECHNIQUES FOR OPTIMIZATION OF SMALL VENTRICULAR CONDUCTION INTERVAL IN ÐTTÐBT-INSTALLED PATIENTS

Tri Thức Nguyễn1, Ngọc Dũng Kiều2,, Anh Tiến Hoàng2, Cửu Long Nguyễn2
1 Cho Ray hospital
2 Hue University of Medicine and Pharmacy

Main Article Content

Abstract

Background: Cardiac resynchronization therapy (CRT) is a proVen treatment for heart failure in selected patients with heart failure. [1, 2]. HoweVer, the rate of non-response to CRT in medical literiture is up to 30%[3]. Therefore, it is essential finding a easy to perform routinely method to optimize cardiac resynchronization in order to increase the response rate to CRT for patients with heart failure who haVe a CRT. With that in mind, we did this research, which is meant to giVe more data on the possibility of employing echocardiography in the CRT optimization. Objective: Compare the correlation between the two techniques of CRT optimization: by Doppler cardioechography and the cardiac catheterization. Research object and method: Study Design: A prospectiVe, descriptiVe, comparatiVe, and interVentional study. Subjects: Continuous sampling of all heart failure patients with criteria for CRT implantation at Cho Ray hospital from 2015 to the end of 2018, were follow up at least 3 months after the deVice was implanted. Methods: Immediately after commencing the CRT, each patient was optimized for atrioVentricular delay time immediately after CRT installation by left Ventricular catheterization technique measuring dP/dtmax. During 24 hours after the process, we continue to find the best atrioVentricular delay time based on the doppler cardioechography and eValuate the correlation between the Value discoVered between these two methods. Results: The method of optimizing atrioVentricular delay time by using cardioechography to measure VTI through the mitral ValVe has a strong positiVe correlation, with the correlation coefficient, respectiVely, r = 0.941 (when biVentricular pacing) and r = 0.952 (in three-chamber pacing), p<0.001. The method of optimizing atrioVentricular delay time using cardioechography measurement of VTI through the aortic ValVe has a positiVe, moderate correlation, with a correlation coefficient of r = 0.563, respectiVely (when biVentricular pacing).and r = 0.626 (in three-chamber pacing), p<0.001. Conclusion: When optimizing atrioVentricular delay time in patients who haVe had a cardiac resynchronization deVice in place, we can use Doppler echocardiography to measure VTI through the


 


mitral ValVe in a routine way, instead of the inVasiVe LV catheterization optimization method to measure dP/dtmax.

Article Details

Keywords

Cardiac arrhythmia, Arrhythmia treatment, Cardiac Resynchronization Therapy, Optimization Cardiac Resynchronization Therapy, Cardiac Resynchronization Therapy programming, Pacemaker programming, Heart failure

References

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