Search for: [Abstract = "Methods\:The study comprises the records of all patients who underwent transvenous lead extraction in Department of Electrocardiology John Paul II Hospital in Cracow. The data of all referred patients in the registry were recorded prospectively from October 2011 when the first procedure was conducted. The analysis includes patients who meet criteria of transvenous lead extraction procedures proposed in theexpert consensus document by Heart Rhythm Society. Additionally, in patients with implanted Sprint Fidelis, Riata and Riata ST leads we applied the National Consultant in Cardiology Experts' Group Guidelines on dealing with patients implanted with some advisory defibrillator leads. We performed the transvenous lead extraction in patients with indications not listed in above mentioned documents such as heart perforation and significant lead\-induced tricuspid regurgitation.The inclusion criteria were as follows\: TLE procedure was conducted, the oldest lead targeted to removal has been implanted for more than one year, or a lead regardless of duration of implant requiring the assistance of specialized equipment that is not included as part of the typical implant package.Exclusion criteria were as follows\: extraction of the lead\(s\) younger than one year which did not require the assistance of specialized equipment, lead extraction via surgical approach.The population was divided into 4 groups according to the indications for TLE procedure. In case of patients who presented with more than one type of indication, the main indication was the one with higher recommendation class according to HRS expert consensus document\: group A – infectious indications \(systemic infection\: sepsis and\/or endocarditis \- certain or probable\), group B – infectious indications \(pocket infection, pocket infection with the signs of systemic infection which does not meet the criteria of lead\-dependent infective endocarditis\), group C – non\-infectious indications \(extraction of abandoned\/damaged\/redundant leads\), group D – non\-infectious indications \(extraction of functional leads in case of device upgrade\).The precisely described criteria allowed the assignment of each patient to certain group according to indications. Each group of indications was discussed in detail and the groups were compared with each other. Most of patients referred to our centre had class II indicationsaccording to HRS. The ipsilateral venography was the examination which allowed to specify the class either to IIa or IIb. Several parameters were chosen in order to assess their utility in prediction of lead electrical dysfunction. Furthermore, the usefulness of white blood count and C\-reactive protein was assessed based on ROC curve determining the cut\-off values for these tests."]

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