Managed care is the term used to describe the kind of health care that health maintenance organizations or HMOs offer. It’s called managed care because the principles of business management guide the health care service. But there’s growing evidence that the profit motive of HMOs is leading to denial of care and unreasonable restrictions on the more than 50 million Americans who receive their primary care from HMOs. Tomorrow, a House subcommittee will hold hearings on Managed Care Abuses.