Sutent, a drug manufactured and marketed to fight stomach cancer tumors, may have the added side effect of heart problems in some patients, says a new study.

Those patients who have high blood pressure and other signs of possible heart disease should be carefully monitored if prescribed Sutent, said the researchers.

Of course, all drugs have benefits and dangers -- but is heart trouble one that you're willing to risk if fighting a stomach tumor? That's up to each patient to decide. Although cancer treatment is harsh, possible heart problems can be just as harsh if nudged incorrectly.