7 lines (6 with data), 259 Bytes

f054b 0 128 0 16:00:00 01/02/1989
# Start time=16:00
# First beat=16:01:26.281
# <age-range>: 55-59, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.554,  <RR-high-limit(sec)>: 0.1046
# Note: recording with a timing signal, flutter-compensated