We wanted to determine the direct cost of hysterectomies by surgical a
pproach and to estimate the impact on costs if more vaginal hysterecto
mies were substituted for abdominal hysterectomies for women under 50
years of age. Eleven Ontario (Canada) hospitals provided 1994 cost dat
a based on 1376 hysterectomies. These data were applied to all hystere
ctomies performed in the province for women under 50 to estimate the c
ost of subtotal, vaginal (VH), or laparoscopically assisted vaginal hy
sterectomy (LAVH) relative to total abdominal hysterectomy (TAH). We d
etermined the change in costs if TAHs in Ontario in 1994-1995 had been
substituted by VH or LAVH. Teaching and community hospitals were cons
idered separately. VH was less costly than TAH, subtotal, or LAVH. The
direct cost for TAH at teaching hospitals was much higher than at com
munity hospitals. Costs relative to TAH were higher for LAVH at commun
ity but not at teaching hospitals. From the population baseline rate o
f 25% VH, 5% LAVH, 10% subtotal, and 60% TAH, we estimated that increa
sing VH to 45% would lower costs by 2.4%; increasing LAVH to 25% would
increase costs by 4.4%. VH is associated with lower costs than TAH or
LAVH. However, the magnitude of the substitution and the extent of co
st savings should ultimately be based on evaluation of patient outcome
s.