7 lines (6 with data), 253 Bytes

f133b 0 128 0 13:15:00 23/06/1987
# Start time=13:15
# First beat=13:15:00.617
# <age-range>: 55-59, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.664,  <RR-high-limit(sec)>: 1.25
# Note: reel-to-reel recording, not flutter-compensated