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Related Experiment Videos

ARDS: a clinicopathological confrontation.

Quentin de Hemptinne1, Myriam Remmelink2, Serge Brimioulle1

  • 1Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium.

Chest
|January 2, 2009
PubMed
Summary

Acute Respiratory Distress Syndrome (ARDS) is a heterogeneous condition, with only half of patients exhibiting typical diffuse alveolar damage (DAD). Postmortem exams revealed missed diagnoses and potential treatment opportunities in ARDS cases.

Related Experiment Videos

Area of Science:

  • Critical Care Medicine
  • Pulmonology
  • Pathology

Background:

  • Acute Respiratory Distress Syndrome (ARDS) heterogeneity complicates treatment efficacy.
  • Understanding pathologic alterations, especially diffuse alveolar damage (DAD), is crucial.
  • Postmortem examinations can clarify ARDS etiologies and precipitating factors.

Purpose of the Study:

  • To define pathologic alterations in patients with clinical ARDS who died.
  • To evaluate missed etiologies or precipitating factors via postmortem examination.
  • To assess the prevalence of diffuse alveolar damage (DAD) in fatal ARDS cases.

Main Methods:

  • Retrospective review of 69 patients with ARDS and postmortem examinations (2002-2004).
  • Analysis of discrepancies between antemortem and postmortem diagnoses using Goldman classification.
  • Pathologic assessment for diffuse alveolar damage (DAD), pneumonia, and invasive pulmonary aspergillosis.

Main Results:

  • Of 64 analyzed patients, 50% (32) showed DAD; 25% (16) had pneumonia without DAD; 12.5% (8) had invasive pulmonary aspergillosis.
  • Multiple organ failure was the primary cause of death in 27 patients.
  • Major unexpected findings occurred in 23% (15) of cases, including invasive fungal and tuberculous infections.

Conclusions:

  • ARDS is a heterogeneous syndrome, with DAD present in only half of the studied patients.
  • Postmortem findings suggest potential for improved diagnosis and therapy in some cases.
  • Open lung biopsy might have altered management and outcomes in select ARDS patients.