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Neurohormonal responses during positive pressure mechanical ventilation.
1Department of Adult Health and Illness Nursing, College of Nursing, The Ohio State University, Columbus 43210, USA.
Heart & Lung : the Journal of Critical Care
|May 18, 1999
Summary
Positive pressure mechanical ventilation can decrease urine output due to neurohormonal responses. Understanding these effects is crucial for critically ill patients, especially those with heart issues.
Area of Science:
- Critical Care Medicine
- Physiology
- Nephrology
Background:
- Positive pressure mechanical ventilation (PPMV) is a cornerstone of critical care.
- PPMV can paradoxically lead to reduced urinary output and fluid retention.
- These effects are linked to complex neurohormonal mechanisms aimed at maintaining hemodynamic stability.
Purpose of the Study:
- To review the physiological basis of neurohormonal responses to PPMV.
- To examine research findings on these responses.
- To inform clinicians about the clinical significance, particularly in cardiac patients.
Main Methods:
- Literature review of physiological responses to PPMV.
- Synthesis of research on neurohormonal alterations.
- Clinical implications analysis.
Main Results:
- PPMV triggers neurohormonal changes affecting renal function.
- Sodium and water retention are common adverse effects.
- These responses are critical for hemodynamic homeostasis.
Conclusions:
- Clinicians must recognize the impact of PPMV on fluid balance.
- Understanding these neurohormonal responses is vital for managing critically ill patients.
- Particular attention is needed for patients with cardiac dysfunction.