Invasive pulmonary aspergillosis secondary to microwave ablation: a multicenter retrospective study

Guanghui Huang1, Xin Ye1, Xia Yang1

  • 1a Department of Oncology , Shandong Provincial Hospital Affiliated to Shandong University , Jinan, Shandong Province , China.

Abstract

Insights

Invasive pulmonary aspergillosis (IPA) is a serious risk after lung microwave ablation (MWA). Early diagnosis and voriconazole treatment are crucial for improving patient outcomes and reducing mortality.

Area of Science:

  • Pulmonology
  • Oncology
  • Infectious Diseases

Background:

  • Invasive pulmonary aspergillosis (IPA) is a severe complication following lung tumor treatment.
  • Microwave ablation (MWA) is a therapeutic option for lung tumors, but carries risks.

Purpose of the Study:

  • To investigate the clinical, radiological, and demographic characteristics of IPA post-MWA.
  • To evaluate treatment responses in patients with IPA after lung MWA.

Main Methods:

  • Retrospective evaluation of patients treated with MWA for lung tumors between 2011 and 2016.
  • Identification and analysis of patients who developed secondary IPA.

Main Results:

  • The incidence of IPA post-MWA was 1.44%, with a high mortality rate of 26.1%.
  • Pulmonary cavitation (87.0%) was the most common CT finding; sudden massive hemoptysis caused 33.3% of deaths.
  • Voriconazole was the primary treatment, with 73.9% achieving success; intracavitary lavage was used in severe cases.

Conclusions:

  • Lung MWA may increase the risk of IPA, especially in elderly patients or those with recent chemotherapy.
  • Prompt diagnosis and early voriconazole treatment are critical for IPA prognosis.
  • Bronchial artery embolization or lavage may be necessary for select patients.

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