7 lines (6 with data), 253 Bytes

f163b 0 128 0 8:00:00 18/05/1988
# Start time=08:00
# First beat=08:00:00.539
# <age-range>: 60-64, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.632,  <RR-high-limit(sec)>: 1.085
# Note: reel-to-reel recording, not flutter-compensated