Successful treatment of pyopneumothorax secondary to Streptococcus constellatus infection with linezolid: a case report
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(2020) 14:180
CASE REPORT
Open Access
Successful treatment of pyopneumothorax secondary to Streptococcus constellatus infection with linezolid: a case report and review of the literature Zhaorui Zhang, Binbin Xiao and Zhixin Liang*
Abstract Background: Pyopneumothorax secondary to Streptococcus constellatus infection is a clinically rare event, and few cases have been reported. Case presentation: We report the case of a 55-year-old Han Chinese man with underlying diabetes who presented with fever of 17 days duration. A pulmonary computed tomography scan revealed right-sided massive pyopneumothorax. A culture of the pleural effusion and blood grew S. constellatus. A drug sensitivity test showed that the isolate was sensitive to linezolid, penicillin G, cefotaxime, vancomycin, and cefuroxime. Our patient was treated with linezolid for a total of 6 weeks. Subsequently, his chest computed tomography scan showed improved lung condition. Conclusion: To the best of our knowledge, this is the first case of pyopneumothorax secondary to S. constellatus to be treated with linezolid. Pyopneumothorax may be caused by streptococcal infection, and linezolid is another good choice for treatment. Keywords: Pyopneumothorax, Streptococcus constellatus, linezolid, case report, Streptococcus milleri, treatment
Background Streptococcus constellatus belongs to the Streptococcus milleri group of bacteria, which consists of S. constellatus, Streptococcus intermedius, and Streptococcus anginosus [1]. S. constellatus usually causes abscesses in various organs. Linezolid has not been reported to treat pyopneumothorax caused by S. constellatus infection. Here, we report a case of successful treatment of a patient with pyopneumothorax due to S. constellatus infection. This case contributes valuable information to the current knowledge on the treatment of this infectious disease.
* Correspondence: [email protected] Department of Respiratory Medicine, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing City 100853, People’s Republic of China
Case presentation A 55-year-old Han Chinese man was admitted to our hospital on July 26, 2018 on presenting with a chief complaint of fever. Our patient began to have fever 17 days prior to his presentation, and his highest temperature had been 38.5 °C, accompanied by pain in his right chest and cough. He denied symptoms of chest tightness, nausea, and vomiting. He had taken oral amoxicillin without obvious effect, and the symptoms of fever and chest pain continued. He denied hepatitis, tuberculosis, and a history of hypertension or diabetes mellitus. On admission, a physical examination revealed a temperature of 36.5 °C and blood pressure of 115/70 mmHg with a pulse rate of 75 beats per minute (bpm). A lung examination revealed reduced breath sound in
© The Author(s). 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as
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