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Sinus node dysfunction NARRATED animation 1970-01-01T00:00:00+00:00Sick sinus syndrome, sinus arrest and SA exit blocks - the 3 degrees, ECG/EKG patterns PT204Shttps://d3e1m60ptf1oym.cloudfront.net/b0c36e04-dde5-40a9-b29d-bcf14b64806b/sinus_node_dysfunction_xlarge.jpghttps://d3e1m60ptf1oym.cloudfront.net/b0c36e04-dde5-40a9-b29d-bcf14b64806b/sinus_node_dysfunction_mp4_hd_video.mp4