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Articles by H Garan
Total Records ( 1 ) for H Garan
  V. W Tsai , J Cooper , H Garan , A Natale , L. M Ptaszek , P. T Ellinor , K Hickey , R Downey , P Zei , H Hsia , P Wang , S Hunt , F Haddad and A. Al Ahmad
 

Background— Sudden cardiac death among orthotopic heart transplant recipients is an important mechanism of death after cardiac transplantation. The role for implantable cardioverter-defibrillators (ICDs) in this population is not well established. This study sought to determine whether ICDs are effective in preventing Sudden cardiac death in high-risk heart transplant recipients.

Methods and Results— We retrospectively analyzed the records of all orthotopic heart transplant patients who had ICD implantation between January 1995 and December 2005 at 5 heart transplant centers. Thirty-six patients were considered high risk for sudden cardiac death. The mean age at orthotopic heart transplant was 44±14 years, the majority being male (n=29). The mean age at ICD implantation was 52±14 years, whereas the average time from orthotopic heart transplant to ICD implant was 8 years ±6 years. The main indications for ICD implantation were severe allograft vasculopathy (n=12), unexplained syncope (n=9), history of cardiac arrest (n=8), and severe left ventricular dysfunction (n=7). Twenty-two shocks were delivered to 10 patients (28%), of whom 8 (80%) received 12 appropriate shocks for either rapid ventricular tachycardia or ventricular fibrillation. The shocks were effective in terminating the ventricular arrhythmias in all cases. Three (8%) patients received 10 inappropriate shocks. Underlying allograft vasculopathy was present in 100% (8 of 8) of patients who received appropriate ICD therapy.

Conclusions— Use of ICDs after heart transplantation may be appropriate in selected high-risk patients. Further studies are needed to establish an appropriate prevention strategy in this population.

 
 
 
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