7 lines (6 with data), 257 Bytes

e271b 0 128 0 10:50:00 16/07/1987
# Start time=10:50
# First beat=10:58:27.640
# <age-range>: 60-64, <sex>: Male, <medication>: Encainide
# <RR-low-limit(sec)>: 0.632,  <RR-high-limit(sec)>: 1.367
# Note: recording with a timing signal, flutter-compensated