• J H Melone, M Z Schwartz, K R Tyson, C C Marr, S K Greenholz, J E Taub, and V J Hough.
• Department of Surgery, University of California, Davis School of Medicine.
• J. Pediatr. Surg. 1992 Feb 1;27(2):203-7; discussion 207-8.

AbstractBecause postoperative apnea and bradycardia in premature infants following inguinal herniorrhaphy remains a concern, outpatient repair has not been recommended. We have been performing outpatient inguinal herniorrhaphy in premature infants and the present study reviews our experience. Between 1985 and 1990, 1,294 outpatient inguinal herniorrhaphies were performed. Of this group 124 patients (9.6%) were identified as being premature (less than or equal to 36 weeks gestational age). Average ages were: gestational age 32.7 weeks (range, 24 to 36 weeks); postnatal age 12.6 weeks (range, 3 to 24 weeks); and postconceptional age (gestational plus postnatal) 45.3 weeks (range, 34 to 59 weeks). Twenty-two infants previously required ventilatory support, 11 patients had apnea/bradycardia, and 9 patients developed bronchopulmonary dysplasia. General anesthesia (usually nitrous oxide and fluothane) was used in all patients and 75% underwent endotracheal intubation. The average operating room time was 40 minutes (range, 20 to 115 minutes) and the average recovery room time was 94 minutes (range, 30 to 240 minutes). There were no perioperative deaths. One patient became apneic immediately after extubation in the operating room. No further episodes were noted after 4 hours of observation. Another patient following discharge had a brief apneic episode at home while on an apnea monitor, which was relieved with gentle stimulation. Both patients had no further sequelae. Bradycardia to 80 beats/min was noted in two patients, and resolved spontaneously in the recovery room. Laryngospasm after extubation in the operating room occurred in two patients, one of whom required brief reintubation and the other resolved spontaneously. Two patients required postoperative ventilation: one was extubated in the recovery room and the other was hospitalized for 24 hours.(ABSTRACT TRUNCATED AT 250 WORDS)

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