OBJECTIVE: To determine the accuracy and the delay in diagnosis of presumed acute appendicitis in pregnancy. METHODS: Pregnant women undergoing appendectomy for presumed acute appendicitis were compared to non-pregnant age-matched women in a 3:1 ratio undergoing appendectomy in a tertiary medical center from 2001 to 2012. RESULTS: Out of 1618 women who underwent appendectomy during the study period, 81 (4.2%) were pregnant who were compared to 243 age-matched non-pregnant women. There was a significantly shorter interval between admission to the hospital and surgery and shorter surgery length (10.2 versuss 15.7 h, 1.2 ± 0.4 versus 1.4 ± 0.5 h, respectively, p < 0.001) in the pregnant group with similar rates of negative appendectomy (19.8% versus 21.8%, respectively, p = 0.86). The positive and negative predictive values of ultrasonography (US) for the diagnosis of acute appendicitis were 88.2% and 100%, and 92.9% and 57.1%, among the pregnant and the non-pregnant group, respectively. In multivariate analysis, early gestational age was found to be independently associated with higher rate of accurate US results (OR = 0.92, 95% CI 0.85-0.99, p = 0.39). CONCLUSION: Pregnant women undergoing appendectomy have shorter admission to surgery interval and surgical length with similar negative appendectomy rates compared to non-pregnant women. Ultrasound is an accurate tool for the diagnosis of acute appendicitis during pregnancy, especially during early gestation.
OBJECTIVE: To determine the accuracy and the delay in diagnosis of presumed acute appendicitis in pregnancy. METHODS: Pregnant women undergoing appendectomy for presumed acute appendicitis were compared to non-pregnant age-matched women in a 3:1 ratio undergoing appendectomy in a tertiary medical center from 2001 to 2012. RESULTS: Out of 1618 women who underwent appendectomy during the study period, 81 (4.2%) were pregnant who were compared to 243 age-matched non-pregnant women. There was a significantly shorter interval between admission to the hospital and surgery and shorter surgery length (10.2 versuss 15.7 h, 1.2 ± 0.4 versus 1.4 ± 0.5 h, respectively, p < 0.001) in the pregnant group with similar rates of negative appendectomy (19.8% versus 21.8%, respectively, p = 0.86). The positive and negative predictive values of ultrasonography (US) for the diagnosis of acute appendicitis were 88.2% and 100%, and 92.9% and 57.1%, among the pregnant and the non-pregnant group, respectively. In multivariate analysis, early gestational age was found to be independently associated with higher rate of accurate US results (OR = 0.92, 95% CI 0.85-0.99, p = 0.39). CONCLUSION: Pregnant women undergoing appendectomy have shorter admission to surgery interval and surgical length with similar negative appendectomy rates compared to non-pregnant women. Ultrasound is an accurate tool for the diagnosis of acute appendicitis during pregnancy, especially during early gestation.