I dati raccolti hanno dimostrato dei risultati sovrapponibili tra la neurostimolazione ad alta frequenza e 1.2kHz in pazienti affetti da FBSS refrattari ad altri trattamenti.
Le stimolazioni 1.2kHz e 10kHz si sono entrambe dimostrate efficaci e sicure. L’obiettivo dello studio era di confrontare l’efficacia delle diverse stimolazioni sullo stesso paziente e la non inferiorità di una rispetto all’altra dato l’esiguo numero del campione.
Non è stata dimostrata la superiorità di una stimolazione sull’altra in quanto non è fattibile un confronto fra le due popolazioni di pazienti che hanno scelto la 1.2kHz e 10kHz SCS perchè costituita da due gruppi di pazienti numericamente disomogenei oltre che per il numero di osservazione abbastanza limitato.
Dal colloquio individuale con i pazienti dello studio si evince che la scelta della modalità 1.2kHz dipende dalla possibilità di risparmiare la batteria dell’IPG e pertanto di ridurre la frequenza della ricarica; la gestione del neurostimolatore infatti è un aspetto non trascurabile per la valutazione della compliance terapeutica. In base all’esperienza clinica, diminuire la frequenza della ricarica dell’ IPG aumenta la soddisfazione del paziente per la terapia.
Considerando le diversità cliniche nonchè la soggettività della percezione del dolore sarebbe vantaggioso avere un paradigma di stimolazione in grado di fornire un sollievo dal dolore con stimolazione a frequenze sub-percettive per
migliorare le i potenziali problemi con una stimolazione a frequenza eccessivamente alta.
Questo studio può dunque essere un buon punto di partenza per sviluppi futuri ed eventuali ulteriori valutazioni comparative considerando anche il fatto che, non esponendo a complicanze aggiuntive da stimolazione e/o da impianto, è di facile applicazione e compliance da parte del paziente.
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