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Background <p><i>Mycoplasma hominis</i> is a part of the microflora of the urogenital tract; however, extra-urogenital infections due to <i>M. hominis</i> are rare. Herein, we present a case study of a patient who successfully recovered from a sternal wound infection caused by <i>M. hominis.</i></p> Case presentation <p>We report a case of sternal wound infection caused by <i>M. hominis</i> following tricuspid valvuloplasty. The patient developed a severe infection despite postoperative antimicrobial therapy. Wound sample cultures grew pinpoint-sized colonies on blood agar plates, which were identified as <i>M. hominis</i> by matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS). Based on the results of the antibiotic susceptibility test, effective infection management was achieved using a combination of moxifloxacin and doxycycline.</p> Conclusions <p> <!--Query ID="Q1" Text="Please check and confirm if the authors and their respective affiliations have been correctly identified. Amend if necessary." Resolved="yes"-->The potential role of <i>M. hominis</i> as a causative agent of postoperative infections after thoracotomy may be underestimated. <i>M. hominis</i> should be highly suspected when patients have an indwelling catheter or when perioperative wound samples show numerous leukocytes with no visible bacteria, and are unresponsive to standard empirical treatment for postoperative infections.</p>

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Sternal wound infection caused by Mycoplasma hominis in an adult patient: a case report and literature review

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年2月13日

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  • Shuang Li,
  • Lili Yang,
  • Yuanbiao Guo,
  • Xiaoyan Feng,
  • Ling Ye,
  • Ke Li

摘要

Background

Mycoplasma hominis is a part of the microflora of the urogenital tract; however, extra-urogenital infections due to M. hominis are rare. Herein, we present a case study of a patient who successfully recovered from a sternal wound infection caused by M. hominis.

Case presentation

We report a case of sternal wound infection caused by M. hominis following tricuspid valvuloplasty. The patient developed a severe infection despite postoperative antimicrobial therapy. Wound sample cultures grew pinpoint-sized colonies on blood agar plates, which were identified as M. hominis by matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS). Based on the results of the antibiotic susceptibility test, effective infection management was achieved using a combination of moxifloxacin and doxycycline.

Conclusions

The potential role of M. hominis as a causative agent of postoperative infections after thoracotomy may be underestimated. M. hominis should be highly suspected when patients have an indwelling catheter or when perioperative wound samples show numerous leukocytes with no visible bacteria, and are unresponsive to standard empirical treatment for postoperative infections.