Christopher Anne Fusco, 32, a former congressional aide, died Thursday at Sibley Memorial Hospital of complications from a pregnancy.

She was stricken with eclampsia, a disorder occurring late in pregnancy, on Aug. 9. Her baby, named Michael Joseph, died that day.

A resident of the Washington area since 1970, Mrs. Fusco was director of research for the House Banking and Currency Committee's subcommittee on consumer affairs in the mid-1970s. Earlier, she had worked for the National Association of Counties here.

In 1976, she worked in the Washington offices of the Atlanta-based law firm of Alston, Miller and Gaines. The next year, she managed legislative correspondence for the late U.S. Rep. Clifford Allen (D-Tenn.), who died in 1978.

Mrs. Fusco was the wife of Gregory Fusco, exeuctive director of the National Committee on Research and former minority staff director for the Senate Committee on Human Resources.

She was born in Detroit and grew up in Fort Walton Beach, Fla., She attended the University of South Florida in Tampa.

In addition to her husband, of the home in Washington, she is survived by a son, Gregory Jr., and her mother, Dorothy Wagner Arneson, and a brother, Thomas J. Humphreys, both of Fort Walton Beach.

The family is establishing a Christopher Fund in her name to be used to support a program of neonatology, the science of diagnosis and treatment of disorders of newborn infants, at a local hospital. Further details may be obtained by calling the family.