7 lines (6 with data), 253 Bytes

f147b 0 128 0 9:10:00 21/12/1988
# Start time=09:10
# First beat=09:10:00.031
# <age-range>: 60-64, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.656,  <RR-high-limit(sec)>: 1.257
# Note: reel-to-reel recording, not flutter-compensated