318 THE IPSS-R HAS PROGNOSTIC IMPACT IN UNTREATED PATIENTS WITH MDS DEL(5Q). Issue 1 (April 2015) - Schemenau, J.; Lauseker, M.; Hildebrandt, B.; Fenaux, P.; Pfeilstöcker, M.; Valent, P.; Platzbecker, U.; Kündgen, A.; Bug, G.; Haas, R.; Germing, U.