Abstract: A device for applying manual external cardiac massage by periodic chest compression is designed for use in transport in ambulances, helicopters, etc. It is light in weight, easy to adjust and use without fatigue in confined quarters. A plate beneath the chest holds a vertical arm in position. A horizontal arm is pivotally connected to the vertical arm and has a handle at its free end. Both vertical and horizontal arm lengths are adjustable. A resilient chest pad slidably mounted below the horizontal arm is periodically forced against the chest of a supine patient by up-down operation of the handle. The chest pad may be removed and horizontal arm locked in vertical position to serve as a support for items such as intravenous fluids. The vertical arm may be unlocked and folded down to a storage position and for ease of loading and unloading a patient. In an alternative embodiment, the support plate is replaced by a clamp assembly that clamps the device to a support member of the patient support or stretcher.