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[Incubator noise evaluation].

M I Fasolo1, R N Moreira, P J Abatti

  • 1Centro Federal de Educação Tecnológica do Paraná, Centro Federal de Educaçao Tecnológica do Paraná, CEFET-PR, Curitaba.

Jornal De Pediatria
|May 1, 1994
PubMed
Summary

Noise levels in infant incubators often exceed safe limits, particularly when using oxygen support systems. This study highlights how gas flow rates significantly increase incubator noise, potentially harming neonates.

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Area of Science:

  • Neonatal care technology
  • Environmental health in healthcare settings
  • Acoustic engineering in medical devices

Context:

  • Infant incubators are critical for neonatal care, providing a controlled environment for vulnerable newborns.
  • Noise exposure in neonatal intensive care units (NICUs) is a recognized stressor for infants.
  • International Standards set noise limits for medical equipment to protect patients.

Purpose:

  • To measure and analyze noise levels generated by infant incubators and their associated life support equipment.
  • To determine the impact of oxygen delivery systems and flow rates on incubator noise levels.
  • To assess compliance with established noise standards in incubator usage.

Summary:

  • A significant percentage (33.3%) of incubators exceeded the 60 dB(A) noise standard.
  • Oxygen support equipment notably increased incubator noise, with higher flow rates correlating to greater noise levels (e.g., 8 L/min resulted in 67.2 dB(A)).
  • Noise levels were also elevated (82.5% of cases) when using plastic enclosures with oxygen/air injection, showing a direct relationship between oxygen proportion and internal noise.

Impact:

  • Findings indicate a need for improved incubator design and management of life support systems to reduce noise exposure for neonates.
  • Elevated noise levels may negatively affect infant development and physiological stability.
  • Recommendations for optimizing gas delivery and equipment handling are crucial for creating quieter NICU environments.

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