7 lines (6 with data), 254 Bytes

f218b 0 128 0 10:00:00 22/08/1987
# Start time=10:00
# First beat=10:11:47.742
# <age-range>: 60-64, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.493,  <RR-high-limit(sec)>: 0.984
# Note: reel-to-reel recording, not flutter-compensated