A cardiac pacing lead for pacing the atria and a method of its use. The lead is provided with a mechanism for maintaining an atrial pacing electrode adjacent stimulable tissue in a patient's superior vena cava and an additional electrode locatable in the right ventricle or elsewhere when the atrial electrode...http://www.google.co.uk/patents/US6021354?utm_source=gb-gplus-sharePatent US6021354 - Single pass lead and method of use