7 lines (6 with data), 253 Bytes

e133b 0 128 0 11:00:00 19/10/1987
# Start time=11:00
# First beat=11:24:30.007
# <age-range>: 45-49, <sex>: Male, <medication>: Encainide
# <RR-low-limit(sec)>: 0.523,  <RR-high-limit(sec)>: 0.867
# Note: reel-to-reel recording, not flutter-compensated