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Related Experiment Videos

[The kidney in mechanical ventilation].

J A Gómez Rubí1, S Nicolás Franco, J L Buendia

  • 1Servicio de Medicina Intensiva, Hospital Universitario Virgen de la Arrixaca, Murcia.

Revista Clinica Espanola
|December 1, 1992
PubMed
Summary
This summary is machine-generated.

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Positive pressure mechanical ventilation impairs renal function by reducing water and sodium excretion due to increased intrathoracic pressure. Strategies like low PEEP and dopamine can mitigate these negative renal effects.

Area of Science:

  • Nephrology
  • Critical Care Medicine
  • Physiology

Context:

  • Positive pressure ventilation is a cornerstone of critical care.
  • Its impact on renal function is significant and multifactorial.
  • Understanding these effects is crucial for patient management.

Purpose:

  • To elucidate the mechanisms by which positive pressure ventilation affects renal function.
  • To identify key factors contributing to impaired renal excretion.
  • To outline strategies for attenuating the adverse renal effects of mechanical ventilation.

Summary:

  • Positive pressure ventilation increases intrathoracic pressure, leading to decreased renal water and sodium excretion.
  • This is mediated by reduced cardiac output, sympathetic nervous system activation, increased vasopressin, activated renin-angiotensin-aldosterone system, and decreased atrial natriuretic peptide.

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  • Consequences include hemodynamic instability, increased hypoxia, and potential renal failure.

    • Impact:

    • Mechanical ventilation significantly impacts renal hemodynamics and excretory function.
    • Implementing specific ventilatory techniques and therapeutic interventions can mitigate renal dysfunction.
    • Close monitoring of renal function and fluid balance is essential during mechanical ventilation.