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Factors influencing functional outcome in supraglottic laryngectomy
R N Beckhardt1, J G Murray, C N Ford
1Department of Surgery, University of Wisconsin Hospital and Clinics, Madison.
Head & Neck
|May 1, 1994
Summary
Preoperative pulmonary function tests (PFTs) can predict swallowing issues after supraglottic laryngectomy (SL). A reduced FEV1/FVC ratio (less than 50%) indicates a higher risk of aspiration and deglutition complications.
Area of Science:
- Otolaryngology
- Thoracic Surgery
- Oncology
Background:
- The impact of preoperative pulmonary function tests (PFTs) on postoperative aspiration and deglutition complications following supraglottic laryngectomy (SL) requires further investigation.
- The influence of various other factors on these outcomes remains controversial or unstudied.
Purpose of the Study:
- To analyze the relationship between preoperative PFTs and postoperative aspiration/deglutition complications in SL patients.
- To evaluate the impact of other clinical and surgical variables on these complications.
Main Methods:
- Retrospective chart review of 46 SL patients.
- Analysis of preoperative PFTs, arterial blood gases, demographic factors, disease stage, surgical extent, and adjuvant treatments.
- Correlation of these factors with postoperative aspiration and deglutition problems.
Main Results:
- 39% of patients experienced no complications, 33% had moderate, and 28% had severe issues.
- 85% of patients achieved successful swallowing outcomes, while 15% had intractable aspiration.
- A decreasing FEV1/FVC ratio and increased smoking pack-years significantly correlated with poorer outcomes.
Conclusions:
- An FEV1/FVC ratio below 50% is a significant risk factor for severe aspiration and deglutition complications after SL.
- This PFT parameter should be considered alongside other factors in determining surgical candidacy.
- Extended SL procedures can be performed safely with meticulous reconstruction.