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[Waiting for the crisis]
G D Giebel1, M Doehn, M Müller-Gorges
1II. Lehrstuhl für Chirurgie, Universität Köln.
Langenbecks Archiv Fur Chirurgie
|January 1, 1997
Summary
A subset of intensive care unit (ICU) patients experience prolonged mechanical ventilation due to extrapulmonary factors, not pulmonary complications. Identifying these factors is crucial for understanding and managing prolonged critical illness.
Area of Science:
- Critical Care Medicine
- Pulmonary Medicine
- Intensive Care Unit (ICU) Studies
Background:
- Most ICU patients face a critical turning point within 14 days of admission.
- A small patient cohort requires significantly longer to reach this critical phase.
Observation:
- A study analyzed 1,861 ICU patients on invasive positive pressure ventilation (IPPV) for over three days.
- 170 patients required IPPV for more than 40 days, with daily variables recorded.
Findings:
- Mortality rates were similar between patients with <40 days and >40 days of IPPV.
- Survivors and non-survivors differed significantly in extrapulmonary factors like fluid balance, abdominal status, and organ function.
- Pulmonary factors showed differences mainly late in the observation period.
Implications:
- Prolonged ventilation may represent a distinct patient entity driven by extrapulmonary causes.
- Pulmonary complications like pneumonia and ARDS are likely manifestations, not primary causes, of prolonged ventilation.
- The unknown extrapulmonary origins necessitate focusing on managing symptoms of prolonged critical illness.