Table 2.

Second series: tracheal reconstruction using bladder wall, but without a pedicled omental covering

Dog	Observation period (months)	Surgical procedure	Cause of death	Tracheal stenosis	Calcification on X-ray
11	22	Patch closure	*2	None	*3
12	21	Patch closure	*2	None	*3
13	5	Semicircular	Sacrifice	None	Distinct
14	6	Semicircular	Sacrifice	None	Distinct
15	4	Circumferential	Sacrifice	None	Distinct
16	12	Circumferential	Sacrifice	None	Indistinct

^*2: Living; ^*3: X-rays not performed; Patch closure: patch closure of deficit; Semicircular: semicircular tracheal replacement; Circumferential: circumferential tracheal replacement