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[ARDS: circulatory factors and their evaluation].

T Imamura1

  • 1The Second Department of Internal Medicine, Nagasaki University School of Medicine.

Nihon Kyobu Shikkan Gakkai Zasshi
|February 1, 1991
PubMed
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This study investigates Acute Respiratory Distress Syndrome (ARDS) using balloon pulmonary angiography. Findings reveal pulmonary hemodynamic changes and correlate peripheral artery changes with disease severity and disseminated intravascular coagulation (DIC).

Area of Science:

  • Pulmonary Medicine
  • Cardiovascular Research
  • Diagnostic Imaging

Background:

  • Acute Respiratory Distress Syndrome (ARDS) is a severe respiratory condition.
  • It presents with acute dyspnea, hypoxemia, and reduced lung compliance.
  • Causes include lung injury, pancreatitis, and infections, often without prior lung disease.

Purpose of the Study:

  • To investigate dynamic pulmonary circulation and peripheral pulmonary artery morphology in ARDS patients.
  • To evaluate the utility of balloon pulmonary angiography (BOPA) in assessing ARDS.
  • To correlate hemodynamic changes with morphological findings in ARDS.

Main Methods:

  • Utilized balloon pulmonary angiography (BOPA) to examine pulmonary circulation and artery morphology.
  • Assessed pulmonary hemodynamics, including pulmonary hypertension, pulmonary vascular resistance (PVR), cardiac index (C.I.), and pulmonary capillary wedge pressure (PCWP).

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  • Measured pulmonary artery (PA) diameter to detect vasoconstriction.

    • Main Results:

    • ARDS patients exhibited mild pulmonary hypertension and increased PVR, with normal C.I. and PCWP.
    • BOPA findings showed a correlation between peripheral artery (PAFD) frequency and elevated PVR.
    • Disseminated intravascular coagulation (DIC) presence also correlated with PAFD frequency.
    • Pulmonary vasoconstriction was identified via PA diameter measurements.

    Conclusions:

    • BOPA is a valuable tool for assessing pulmonary hemodynamics and morphology in ARDS.
    • PAFD frequency is linked to increased PVR and DIC in ARDS patients.
    • Pulmonary vasoconstriction is a key feature in ARDS, detectable by BOPA.