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[Euthyroid sick syndrome in patients with respiratory failure]
L Wawrzyńska1, A Sakowicz, S Filipecki
1Kliniki Chorób Wewnetrznych, Instytutu Gruźlicy i Chorób Płuc w Warszawie.
Pneumonologia I Alergologia Polska
|January 1, 1996
Summary
Severe respiratory failure in Intensive Care Unit patients is linked to changes in thyroid hormones. Lower thyroid hormone levels, particularly TT3, may indicate a poorer prognosis in these patients.
Area of Science:
- Endocrinology
- Critical Care Medicine
- Respiratory Medicine
Background:
- Decreased thyroid hormone concentrations have been reported in patients with respiratory diseases.
- The impact of severe respiratory failure on thyroid hormone levels in Intensive Care Unit (ICU) patients requires further investigation.
Purpose of the Study:
- To evaluate the influence of severe respiratory failure (RF) on blood serum thyroid hormone concentrations in ICU patients.
- To explore the relationship between respiratory parameters (PO2, pH, PCO2) and thyroid hormones (TT3, TT4, FT3, rT3, FT4) in patients with RF.
Main Methods:
- Analysis of 22 ICU patients with partial or total RF.
- Measurement of serum thyroid hormones (TT3, TT4, FT3, rT3, FT4).
- Correlation analysis between respiratory parameters (PO2, pH, PCO2) and thyroid hormone levels.
Main Results:
- Patients with RF exhibited the Euthyroid Sick Syndrome (ESS).
- ESS correlated with decreased PO2, with significant relationships found between PO2 and TT3, FT3, and rT3.
- Increasing TT3 serum concentration showed a direct correlation with clinical improvement.
Conclusions:
- Severe respiratory failure in ICU patients is associated with ESS.
- Thyroid hormone levels, especially TT3, may serve as prognostic indicators in patients with RF.
- Measurements of TT3 and TT4 concentrations could offer prognostic value for patients experiencing RF.