Hogan continued to record with Jordan and the Tympany Five until 1949. In 1938 he started a band that recorded a year later as the Tympany Five. The condition "guttural pouch tympany" affects several breeds, including the Arabian horse. Hogan was recruited to join Louis Jordan's Tympany Five as a temporary bass player. Ruminal tympany occurs when this gas becomes trapped in the rumen. Tympany is usually unilateral, but in some cases can affect both pouches. Ruminal tympany may be primary, known as frothy bloat, or secondary, known as free-gas bloat. Tympany results in non-painful, soft swelling beneath the ear and behind the jaw.