Fairfax County schools superintendent Jack D. Dale was released on Sunday from Inova Fairfax Hospital after having emergency cardiovascular surgery last week.

School officials said Dale is not expected to resume his duties until the first week of June at the earliest after he suffered an aortic aneurysm at work.

He was admitted to the hospital last Tuesday after telling colleagues that he was not feeling well. Dale was taken by ambulance to Inova and underwent surgery to address the aortic aneurysm, which is a weakening of the wall of the aorta, the main artery that carries blood from the heart to the rest of the body.

While Dale is recuperating at his home, deputy superintendent Richard Moniuszko will lead the school system. Once he is able, Dale is expected to return on a part-time basis by June. His nine-year term is slated to end on July 1, when veteran Texan educator Karen Garza will take over as superintendent.

The school system created an e-mail inbox for Dale to receive get-well notes at Superintendent.Dale@fcps.edu.