In simple terms, amplitude is how strong or intense a wave is. It's plotted on a graph with time on the x-axis and amplitude ...

The mean age of the study patients was 66 ± 10 years. Overall, 141 (2.2%) patients underwent PPM implantation 9 ± 6 days (median 7 days; interquartile range 5.5–11) after cardiac surgery.