Complex sentence: Afterwards, Mickie choked Stratus with a wristband she was wearing that fell off during the match, therefore giving the win to Stratus by disqualification, but per WWE regulations, a title can only change hands via pinfall or submission therefore Mickie retained the Championship.
Split into simpler sentences: Afterwards, Mickie choked Stratus with a wristband she was wearing that fell off during the match, and was disqualified giving the win to Stratus. Per WWE regulations, a title can only change hands via pinfall or submission therefore Mickie retained the Championship.