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Related Experiment Videos

[Changes in respiratory function before and after laryngectomy]

K Matsuura1, S Ebihara, T Yoshizumi

  • 1Department of Head and Neck Surgery, National Cancer Center Hospital East, Kashiwa.

Nihon Jibiinkoka Gakkai Kaiho
|July 1, 1995
PubMed
Summary
This summary is machine-generated.

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Spirometry using a novel tracheal mask can evaluate respiratory function in laryngectomy patients. Vital capacity (VC) and V25/height (V25/HT) significantly decreased post-surgery, indicating potential airway changes.

Area of Science:

  • Respiratory Medicine
  • Oncology
  • Pulmonary Function Testing

Context:

  • Head and neck cancer patients often have smoking histories, increasing risks of pulmonary complications.
  • Pulmonary function tests are crucial for assessing surgical risk but are technically challenging in laryngectomy patients.

Purpose:

  • To evaluate respiratory function in patients who have undergone a total laryngectomy.
  • To assess the feasibility of using a novel tracheal mask for spirometry in this population.

Summary:

  • A tracheal mask with a heat and moisture exchanger was used for spirometry in 8 laryngectomy patients.
  • Measurements included arterial blood gases, vital capacity (VC), %VC, FEV1.0%, and V25/height (V25/HT) before and after surgery.
  • Results showed no significant changes in arterial blood gases or FEV1.0%, but a significant decrease in VC and V25/HT post-laryngectomy.

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Impact:

  • Vital capacity (VC) decreased due to reduced upper airway dead space.
  • V25/height (V25/HT), reflecting small airway closure, significantly decreased and remained below normal limits.
  • V25/HT may serve as a valuable parameter for assessing pulmonary function after total laryngectomy.