7 lines (6 with data), 253 Bytes

e280b 0 128 0 10:05:00 02/03/1988
# Start time=10:05
# First beat=10:29:15.171
# <age-range>: 50-54, <sex>: Male, <medication>: Encainide
# <RR-low-limit(sec)>: 0.367,  <RR-high-limit(sec)>: 0.648
# Note: reel-to-reel recording, not flutter-compensated