7 lines (6 with data), 253 Bytes

e126b 0 128 0 12:15:00 20/10/1988
# Start time=12:15
# First beat=12:29:34.703
# <age-range>: 60-64, <sex>: Male, <medication>: Encainide
# <RR-low-limit(sec)>: 0.671,  <RR-high-limit(sec)>: 1.343
# Note: reel-to-reel recording, not flutter-compensated