Registered nurses at a Manhattan Veterans Affairs hospital failed to notice a patient had become disconnected from a cardiac monitor until after his heart had stopped and he could not be revived, according to a report Monday from the VA inspector general. The incident from last June was the second such death at the hospital involving a patient connected to a monitor in a six-month period. The first, along with two earlier deaths at a Denver VA hospital, raised questions about nursing competency in the VA system, ProPublica reported last month. Monday's report documents the June 2011 death of patient in his 80s at the Manhattan campus of the VA’s New York Harbor Healthcare System.