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Related Experiment Videos

Primary intrathoracic malignant effusion: a descriptive study.

P Ang1, E H Tan, S S Leong

  • 1Department of Medical Oncology, National Cancer Center, Singapore.

Chest
|July 14, 2001
PubMed
Summary
This summary is machine-generated.

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Primary intrathoracic malignant effusion (PIME) is a distinct entity characterized by unexplained pleural or pericardial effusions. Platinum-based chemotherapy shows a positive survival effect in PIME patients.

Area of Science:

  • Oncology
  • Pulmonology
  • Medical Research

Background:

  • Malignant pleural/pericardial effusions without a clear primary tumor are underrepresented in medical literature.
  • Primary intrathoracic malignant effusion (PIME) is proposed to define this specific clinical presentation.
  • Understanding PIME is crucial for accurate diagnosis and treatment of unexplained effusions.

Purpose of the Study:

  • To define diagnostic criteria for Primary Intrathoracic Malignant Effusion (PIME).
  • To investigate potential etiologic factors, including environmental tobacco smoke (ETS) exposure.
  • To evaluate the impact of chemotherapy on survival in PIME patients.

Main Methods:

  • Retrospective database search of patients with pleural/pericardial effusion from January 1993 to January 2000.

Related Experiment Videos

  • Inclusion criteria: effusion, histologic proof of malignancy, no identifiable primary site, no prior malignancy, no asbestos exposure.
  • Case-control analysis for environmental tobacco smoke (ETS) exposure.

    • Main Results:

    • 71 patients met PIME criteria; predominantly women (65%) and nonsmokers (72%), with adenocarcinoma histology.
    • Significant association found between PIME and environmental tobacco smoke (ETS) exposure.
    • Platinum-based chemotherapy significantly improved median survival (12 months vs. 5 months, p=0.003).

    Conclusions:

    • Primary Intrathoracic Malignant Effusion (PIME) should be recognized as a distinct clinical entity.
    • Environmental tobacco smoke (ETS) may be a contributing factor to PIME etiology.
    • Platinum-based chemotherapy demonstrates a positive impact on survival for PIME patients, warranting further investigation.