308 KB17 KB192920262005Boute, WimKovačič, NaceLipar, LukaRakovec, PeterZupan, IgorŽižek, Davidletnik:74str. I-71 - I-74številka:suppl. 1ISSN:1318-0347COBISSID_HOST:19268313URN:URN:NBN:SI:doc-52EWQXZHslSlovensko zdravniško društvoZdravniški vestnikAtrial FibrillationCardiac Pacing, ArtificialČasovni faktorjiMethodsPreddvorna fibrilacijaRetrospective StudiesRetrospektivne študijeSrčno vzpodbujanje, umetnoTime FactorsRetrospektivna analiza podatkov o vsajenih spodbujevalnikih tipa VDD v KC Ljubljana| Retrospective analysis of long term single lead VDD follow-up data in MC Ljubljana|Background. VDD pacing system offers physiologically beneficial atrio-ventricular (AV) synchronous pacing. The objective of our analysis was to evaluate changes of parameters that determine hemodynamic efficiency of pacing over time. Methods. 358 patients who had implanted VDD pacemaker between May 1994 and September 2001 were retrospectively enrolled into our study. Data on P were amplitudes, AV synchrony, AF burden and pacing mode wereobtained from regular follow-up print outs. Results. P wave amplitudes have lowered over years. Fourth year after implantation amplitudes were 81% ofthose one year after implantation. AV synchrony did not change over years and was nearly constant at 80%. AF burden has increased in 5 years for 65% according to first year after implantation. AF burden was higher with patientsthat had their devices implanted more than 5 years ago compared to those that had devices implanted less than 5 years ago. The difference was statistically significant (p<0.05). VDD mode survival over 8 years was 88%. The most common indication for reprogramming was atrial fibrillation. Conclusions. We may assume that VDD pacing system is reliable yet hemodinamically less efficient. It remains to be unclear whether this has an impact on the incidence of AF, therefore further studies are requiredIzhodišča. Sinhrona prekatna stimulacija (VDD) nudi fiziološko ugodno preddvornoprekatno usklajeno spodbujanje. Želeli smo ugotoviti, kako se s časom spreminjajo parametri, ki pomembno prikazujejo hemodinamsko ugodnost stimulacije. Metode. V retrospektivno raziskavo smo vključili 358 bolnikov, kijim je bil med majem 1994 in septembrom 2001 vsajen srčni spodbujevalnik tipa VDD. Podatke o amplitudah zobca P, predvornoprekatni usklajenosti, deležupreddvornih aritmij in načinu spodbujanja smo poiskali v izpisih rednih kontrol delovanja spodbujevalnikov. Rezultati. Amplitude zobca P so se z leti po vsaditvi znižale, tako da so četro leto po vsaditvi znašale 81% amplitude prvo leto po vsaditvi. Preddvornoprekatna usklajenost se z leti ni bistveno spreminjala in je znašala okoli 80%. Delež preddvornih aritmij se je v petih letih povečal za 65% glede na prvo leto po vsaditvi. Delež preddvornih aritmijje statistično značilno večji pri tistih, ki jim je bil spodbujevalnik vsajen pred manj kot 5 leti (p<0,05). VDD način spodbujanja se je v 8 letih ohranil pri 88% bolnikov. Najpogostejši razlog za reprogramiranje je bila atrijska fibrilacijaTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaSlovensko zdravniško društvo