Brief observation
Outcomes of Antibiotic Therapy for Uncomplicated Appendicitis in Pregnancy

https://doi.org/10.1016/j.amjmed.2017.04.046Get rights and content

Abstract

Objective

The aim of the present study is to determine the feasibility and safety of antibiotics for uncomplicated simple appendicitis in pregnancy.

Method

We conducted a 6-year prospective observational study on 20 pregnant women in whom uncomplicated simple appendicitis (appendiceal diameter ≤11 mm and with no signs of appendicoliths, perforation, or abscess) was radiologically verified and managed with a 4-day course of antibiotics. Treatment failure rate, defined as the need for an appendectomy during hospitalization and recurrence in the follow-up period (median 25 months), and maternal or fetal complications during the pregnancy were evaluated.

Results

Mean age of patients was 33.4 years, and gestational age was 17.8 weeks. Three patients failed to respond to antibiotic therapy during hospitalization and underwent subsequent appendectomy (2 suppurative and 1 perforated appendicitis). There was 1 wound infection postoperatively. During follow-up, 2 patients during their ongoing pregnancy experienced recurrence at 3 and 6 months post-treatment, and a new course of antibiotics was determined. Patients also experienced recurrence at 8 and 10 months post-treatment and underwent appendectomy. Treatment failure occurred in 5 patients (25%) with no fetal complications during the pregnancy.

Conclusions

Antibiotic therapy for uncomplicated appendicitis in pregnancy may be a feasible treatment option without severe maternal and fetal complications.

Section snippets

Study Design

This was conducted as a prospective observational study in a single medical training center, and all participants provided informed consent. Pregnant women admitted with suspected acute appendicitis and diagnosed as having uncomplicated simple appendicitis, based on radiologic examinations, were included in this study.

Ultrasound and magnetic resonance imaging criteria for uncomplicated simple appendicitis included an appendiceal diameter between 6.1 and 11.0 mm without appendicoliths or signs

Clinical Characteristics

This study included 20 pregnant women (26-43 years; mean, 33.4 ± 4.5 years), primarily presenting with right abdominal pain and tenderness. We found 5 patients had vomiting, indigestion, fever, labor pain, or whole abdominal pain as a chief symptom, and 7 women (35%) had fever (body temperature ≥38.3°C).

Two patients had previous abdominal surgery (caesarean section and tubo-ovarian abscess), and 2 patients had comorbidities (hyperthyroidism and diabetes). Median gestational age was 17.8 weeks

Discussion

It is generally accepted that acute appendicitis during pregnancy warrants an immediate surgery to avoid delayed diagnosis, complicated disease, or adverse pregnancy outcomes. However, the risk of negative appendectomy and surgery-related maternal or fetal complications still remained.

We analyzed pregnant patients who underwent surgery (57 patients) and found a tolerable rate of postoperative complications (8/57; 14%). However, the negative appendectomy rate was higher (6/57; 11%) than in other

Conclusions

The clinical result of this study does not essentially change the treatment strategy for appendicitis in pregnancy; however, it may contribute meaningfully as a treatment option for selected uncomplicated appendicitis. Accordingly, some patients with uncomplicated appendicitis in pregnancy could be treated with antibiotic therapy without serious maternal and fetal complications to obviate the need for unnecessary surgery.

Acknowledgments

The authors thank all of the staff who were involved in the care of pregnant patients at the Department of Surgery and Obstetrics.

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Funding: None.

Conflict of Interest: None.

Authorship: All authors had access to the data and played a role in writing this manuscript.

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