410. Management of ?pacemaker syndrome / 4 types of pacemaker malfunction and their causes July 11th, 2008 by reuben in pacemaker Back Top Tags: card 409. What does a VVI pacer look like on CXR? / DDD or DVI pacer? / Must DDD or DVI pacer provide 2 spikes on ECG? / What is the effect of a magnet on a pacemaker? 411. What is the first sign of battery voltage depletion? / Most common cause of failure to capture / Where do leads commonly displace? / Where do lead fractures occur? Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.