Found the following at this website,
Holy Rosary - Carmelite Sisters.
The Brigittine (or “Saint Bridget”) Rosary looks similar to a regular Rosary, but with an extra decade. The resultant seven Pater beads honor the Seven Sorrows of the Blessed Virgin Mary, and the sixty-three Ave Maria beads commemorate the sixty-three years it is believed the Blessed Mother lived on this earth before her Assumption. In praying the Brigittine Rosary, there are a total of eighteen decades: In the six Joyful Mysteries, the first is the Immaculate Conception; the sixth of the Sorrowful Mysteries commemorates when the Body of the Lord was placed in the Arms of His Sorrowful Mother; and the sixth of the Glorious Mysteries is recited in honor of the Patronage of Mary, Mediatrix of All Grace (and, for the Carmelite, Mary, Queen and Beauty of Carmel). The other mysteries are the same as in the Dominican Rosary. However, at the end of each decade, the Apostles Creed, not the Glory be, is recited.
Hope that helps.