Value of pre-operative carotid sinus massage.

The usefulness of carotid sinus massage in pre-operative assessment is discussed with case examples. The technique and risks of carotid sinus massage are described. Carotid sinus massage is of particular value in the demonstration of sino-atrial and atrioventricular node disease in the absence of definitive abnormalities on the routine resting electrocardiogram, and in the identification of patients who show a hypersensitive response to vagal stimulation. These patients should be identified prior to procedures that involve marked vagal activity, since prolonged sinus arrest may occur.