Postpartum pyomyoma: two cases report and literature review / 中华围产医学杂志

ABSTRACT

Objective:To investigate the clinical characteristics of postpartum pyomyoma.Methods:Clinical data of two patients with postpartum pyomyoma admitted to the Department of Obstetrics and Gynecology, Peking University First Hospital, between 2019 and 2020, were collected. Another 16 postpartum pyomyoma reported in China and foreign areas from 2000 to 2020 were reviewed.Results:Apart from three patients without reported gravidity and parity, 12 out of the remaining 15 patients were primiparous. The median maximum diameter of uterine fibroids in pregnancy was 10 cm (6-25 cm). Of the 18 patients, 12 had a history of intrauterine manipulation, 10 had anemia or severe postpartum hemorrhage, and four had other infections. All patients manifested as fever at first, and most were accompanied by abdominal pain. The onset time of 14 cases was within postpartum two weeks. CT, MRI, and ultrasound detection rate in diagnosing postpartum pyomyoma was 11/13, 3/6, and 1/8, respectively. Pus culture had the highest positive rate, with Escherichia coli as the most common pathogen. No death was reported, but 14 patients developed severe complications, including sepsis, septic shock, disseminated intravascular coagulation, rupture of pyomyoma, peritonitis, and incision infection. As failing in anti-infection medication, all patients received surgical treatment, which controlled infections. Three patients were conceived two years after the operation (16 months to two years). Conclusions:Pyomyoma should be considered once postpartum fever develops in patients complicated by uterine fibroids ≥10 cm in diameter during pregnancy, especially those with anemia, infection, or a history of intrauterine manipulation. Surgical treatment should be performed once pyomyoma is diagnosed.