St. Jude shrs jump after earnings beat estimates

NEW YORK (Reuters) - St. Jude Medical Inc (STJ.N) shares rose 7.8 percent before the bell on Wednesday after its quarterly earnings beat estimates.

The cardiovascular device maker said second-quarter earnings rose 55 percent as sales of its implantable cardioverter defibrillators rebounded from a year earlier.

St Jude shares closed at $43.96 on the NYSE on Tuesday.

(Reporting by Deborah Jian Lee; Editing by James Dalgleish)