WASHINGTON, Feb. 25 — High blood pressure in the lungs has been identified as a major risk factor for death in adults with sickle-cell disease, and all people with the disease should be screened for this complication, according to a study being published Thursday. Almost one-third of adult sickle-cell patients who were screened with a noninvasive ultrasound method were found to have moderate to severe pulmonary hypertension and high blood pressure in the lungs that had not previously been detected, the study found. The results from the tests confirm earlier suggestions from studies of patient records that pulmonary hypertension is...