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October 2017 Vol. 5 No.10

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Merit Research Journal of Medicine and Medical Sciences (ISSN: 2354-323X) Vol. 5(10) pp. 472-476, October, 2017 

Copyright © 2017 Merit Research Journals


Original Research Article

Upgrading Patients with Pacemakers to Resynchronization Pacing: Predictors of Success

 
 
 

Samir Rafla1*, Mostfa Nawar1, Mohamd Loutfy1, Christ Geller2 and Aly Aboelhoda1

 

1Alexandria University, Faculty of Medicine, Alexandria, Egypt
2Zentral Klinik, Cardiology, Bad Berka, Germany

*Corresponding Author’s E-mail: smrafla@yahoo.com

Accepted October 08, 2017

 

Abstract

 

The investigations of predictors of success or failure of cardiac resynchronization therapy (CRT) were studied previously. But assessment of success in patients already on dual or single pacemakers and upgraded to CRT were not extensively studied before. How to select patients in whom this may be the most optimal strategy is unclear. We sought to determine factors associated with success or failure in this group of patients who were already paced for heart block. 81 pts were subjected to upgrade to CRT implantation after being on pacemaker. The study was conducted in Germany. Data was presented as Median (Min. – Max.) for abnormally distributed data or Mean ± SD. for normally distributed data. Parameters that revealed no statistical significance in response: Age, sex, EF, diabetes, renal disease, GFR, MR, QRS duration (all above 150 msec), AF and CRT optimization. The following parameters revealed significant influence on response to CRT: Less responders with: Higher CRP, presence of TR, presence of PHN, presence of previous MI, being ischemic vs nonischemic cardiomyopathy (less responders with ischemic CM). EF improved in responders from 30+8.6 to 39.86+9.77. The findings through light on specific parameters that predict response to upgrade to CRT after usual pacemaker. It confirms the benefit of upgrading to CRT from DDD or VVI in patients with EF less than 35%.

Keywords: Heart failure, Resynchronization Therapy, CPR, Ischemic vs Non-ischemic Cardiomyopathy




































 










 







































 










 

 
 
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
   
 
                         

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