7 lines (6 with data), 253 Bytes

e274b 0 128 0 10:00:00 24/10/1987
# Start time=10:00
# First beat=10:27:18.312
# <age-range>: 60-64, <sex>: Male, <medication>: Encainide
# <RR-low-limit(sec)>: 0.773,  <RR-high-limit(sec)>: 1.203
# Note: reel-to-reel recording, not flutter-compensated