Former Member of Knesset Michael (Miki) Eitan (aged 77) was once completely debilitated by Parkinson’s disease. In Feb 2021, he underwent Deep Brain Stimulation (DBS) at Hadassah Ein Kerem in Jerusalem. Now, although the disease continues, most of his symptoms have gone.
https://www.timesofisrael.com/28-year-ex-likud-mk-staves-off-parkinsons-with-rare-brain-treatment/