7 lines (6 with data), 257 Bytes

e253b 0 128 0 10:31:00 27/11/1987
# Start time=10:31
# First beat=10:38:31.585
# <age-range>: 55-59, <sex>: Male, <medication>: Encainide
# <RR-low-limit(sec)>: 0.445,  <RR-high-limit(sec)>: 0.765
# Note: recording with a timing signal, flutter-compensated