7 lines (6 with data), 257 Bytes

e256b 0 128 0 17:00:00 15/12/1987
# Start time=17:00
# First beat=17:00:52.515
# <age-range>: 55-59, <sex>: Male, <medication>: Encainide
# <RR-low-limit(sec)>: 0.507,  <RR-high-limit(sec)>: 1.054
# Note: recording with a timing signal, flutter-compensated