7 lines (6 with data), 253 Bytes

e283b 0 128 0 11:39:00 23/01/1989
# Start time=11:39
# First beat=12:01:03.187
# <age-range>: 70-74, <sex>: Male, <medication>: Encainide
# <RR-low-limit(sec)>: 0.585,  <RR-high-limit(sec)>: 1.109
# Note: reel-to-reel recording, not flutter-compensated