Nonvalvularis pitvarfibrillációban szenvedő betegek esetén az orális antikoaguláns kezelés stroke-prevenciós hatékonysága egyértelműen bizonyított. Ezen betegek nem elhanyagolható hányada számára azonban a magas thromboemboliás kockázat ellenére sem kivitelezhető a hosszú távú antikoaguláns kezelés. Elsősorban ennek köszönhető, hogy napjainkban egyre inkább az alternatív kezelési stratégiák kerülnek az érdeklődés homlokterébe. Nonvalvularis pitvarfibrillációban a thrombusképződés leggyakoribb helye a bal pitvari fülcse. Az európai piacon jelenleg két perkután fülcsezáró eszköz érhető el: Watchman LAA System (Atritech Inc.) és az Amplatzer Cardiac Plug (AGA Medical Corporation). Bár a közelmúltban zárult klinikai vizsgálatok (PLAATO, PROTECT AF) szerint a perkután bal pitvari fülcsezárás elfogadható biztonságossági profil mellett csökkenti a hosszú távú stroke-kockázatot, a rendelkezésünkre álló adatok még korlátozottak. Jelenleg ezek a beavatkozások a nonvalvularis pitvarfibrillációban szenvedő magas stroke-kockázatú betegek azon csoportja számára jelenthetnek elfogadható megoldást, akiknél az orális antikoaguláns terápia nem alkalmazható vagy az optimális hatékonyság nem elérhető. A Gottsegen György Országos Kardiológiai Intézetben 2010. január 28-án, Magyarországon elsőként, három, nonvalvularis pitvarfibrillációban szenvedő betegünknél végeztünk sikeres perkután bal pitvari fülcsezárást.
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