The use of an ilioinguinal-hypogastric nerve block (IHNB) as part of a moni
tored anesthesia care (MAC) technique has been associated with a rapid reco
very profile for outpatients undergoing inguinal herniorrhaphy procedures.
This study was designed to compare the cost-effectiveness of an IHNB-MAC te
chnique with standardized general and spinal anesthetics techniques for ing
uinal herniorrhaphy in the ambulatory setting. We randomly assigned 81 cons
enting outpatients to receive IHNB-MAC general anesthesia, or spinal anesth
esia. We evaluated recovery times, 24-h postoperative side effects and asso
ciated incremental costs. Compared with general and spinal anesthesia, pati
ents receiving IHNB-MAC had the shortest time-to-home readiness (133 +/- 68
min vs 171 +/- 40 and 280 +/- 83 min), lowest pain score at discharge (15
+/- 14 mm vs 39 +/- 28 and 34 +/- 32 mm), and highest satisfaction at 24-h
follow-up (75% vs 36% and 64%). The total anesthetic costs were also the le
ast in the IHNB-MAC group ($132.73 +/- 33.80 vs $172.67 +/- 29.82 and $164.
97 +/- 31.03). We concluded that IHNB-MAC is the most cost-effective anesth
etic technique for outpatients undergoing unilateral inguinal herniorrhaphy
with respect to speed of recovery, patient comfort, and associated increme
ntal costs.