Their doctrines probably mixed with radical currents of
Shī‘a Islam, influencing them and giving rise to later powerful revolutionary-religious movements in the region. In the 9th century, the
Khurramites, an egalitarian religious sect possibly originating from Mazdakism, led a revolt under the leadership of
Bābak Khorramdin against the
Abbasid Caliphate and successfully defended large territories against the Caliphate's forces for some twenty years.
The
Batiniyya,
Qarmatians and other later revolutionary currents of Islam may also be connected to Mazdakism and were often equated with it by contemporary authors.
Turkish scholar Abdülbaki Gölpinarli sees even the
Kizilbash of the 16th century - a radical Shī‘a movement in Persia which helped the
Safavid dynasty establish this branch of Islam as the dominant religion of Iran - as "spiritual descendants of the Khurramites" and, hence, of the Mazdakites.
http://en.wikipedia.org/wiki/Mazdakism#cite_note-S-G-16