7 lines (6 with data), 257 Bytes

f223b 0 128 0 11:23:00 23/01/1988
# Start time=11:23
# First beat=11:26:19.679
# <age-range>: 55-59, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.578,  <RR-high-limit(sec)>: 1.14
# Note: recording with a timing signal, flutter-compensated