Their first match, in 1984-85, had been stopped without a result after five months and 48 games. This time the match was limited to 24 games.
Kasparov won the last game with Black to take the match 13-11. He held the title for 15 years, until he lost to Vladimir Kramnik in 2000, and was the world's top-rated player for most of that time.
Source: Wikipedia