Neutrophil to lymphocyte ratio predicts appropriate therapy in idiopathic dilated cardiomyopathy patients with primary prevention implantable cardioverter defibrillator

作者：Ucar Fatih M; Acar Burak

来源：Saudi Medical Journal, 2017, 38(2): 143-148.

DOI：10.15537/smj.2017.2.15929

Objectives: To investigate whether an inflammatory marker of neutrophil to lymphocyte ratio (NLR) predicts appropriate implantable cardioverter defibrillator (ICD) therapy (shock or anti tachycardia pacing) in idiopathic dilated cardiomyopathy (IDC) patients.
Methods: We retrospectively examined IDC patients (mean age: 58.3 +/- 11.8 years, 81.5% male) with ICD who admitted to outpatient clinic for pacemaker control at 2 tertiary care hospitals in Ankara and Edirne, Turkey from January 2013-2015. All ICDs were implanted for primary prevention. Hematological and biochemical parameters were measured prior procedure.
Results: Over a median follow-up period of 43 months (Range 7-125), 68 (33.1%) patients experienced appropriate ICD therapy. The NLR was increased in patients that received appropriate therapy (4.39 +/- 2.94 versus 2.96 +/- 1.97, p<0.001). To identify independent risk factors for appropriate therapy, a multivariate linear regression model was conducted and age (beta=0.163, p=0.013), fasting glucose (beta=0.158, p=0.017), C-reactive protein (CRP) (beta=0.289, p<0.001) and NLR (beta=0.212, p<0.008) were found to be independent risk factors for appropriate ICD therapy.
Conclusions: Before ICD implantation by using NLR and CRP, arrhythmic episodes may be predictable and better antiarrhythmic medical therapy optimization may protect these IDC patients from unwanted events.

• 出版日期2017-2