Oral oncology · 2024
Impact of tumor localization and choice of microvascular flap on posterior airway changes following ablative surgery in primary oral squamous cell carcinoma: A monocentric cross-sectional study.
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Ritschl Lucas M, Sackerer Valeriya, Pippich Katharina, Zink Jakob K, Singer Hannes, Grabenhorst Alex, Hedderich Dennis M, Wirth Markus H, Wolff Klaus-Dietrich, Fichter Andreas M, Behr Alexandra V
Аннотация
BACKGROUND: The aim of this study was to determine the influence of intraoral reconstructions following oral squamous cell carcinoma (OSCC) resection with a free microvascular flap on the posterior airway space (PAS) and to correlate these results with the potential risk of developing an obstructive sleep apnea syndrome (OSAS).
MATERIALS AND METHODS: Only primary OSCC cases of the tongue or floor of the mouth which were operated and reconstructed. The PAS displayed in computed tomography (CT) scans at three time points were analyzed: t0 = preoperative, t1 = first postoperative CT, and t2 = most recent situation. The following three PAS parameters were calculated: minimum cross-sectional area (minCSA), mean cross-sectional area (meanCSA), and volume.
RESULTS: MinCSA increased from t0 to t2: t0 = 86.9 cm2 (0.0 - 251.8), t1 = 106.6 cm2 (1.0 - 483.4), and t2 = 124.8 cm2 (0.5 - 395.6). MeanCSA increased from t0 to t2: t0 = 225.1 cm2 (79.0 - 500.2), t1 = 247.8 cm2 (102.8 - 674.3), and t2 = 272.2 cm2 (92.2 - 668.4). The volume increased from t0 to t2: t0 = 21.5 cm3 (8.0 - 63.2), t1 = 24.1 cm3 (9.6 - 67.3), and t2 = 26.9 cm3 (6.2 - 67.4).
CONCLUSIONS: Posterior airway space PAS values became higher than preoperatively. In particular, flap type had a significant influence on the three PAS parameters.
MATERIALS AND METHODS: Only primary OSCC cases of the tongue or floor of the mouth which were operated and reconstructed. The PAS displayed in computed tomography (CT) scans at three time points were analyzed: t0 = preoperative, t1 = first postoperative CT, and t2 = most recent situation. The following three PAS parameters were calculated: minimum cross-sectional area (minCSA), mean cross-sectional area (meanCSA), and volume.
RESULTS: MinCSA increased from t0 to t2: t0 = 86.9 cm2 (0.0 - 251.8), t1 = 106.6 cm2 (1.0 - 483.4), and t2 = 124.8 cm2 (0.5 - 395.6). MeanCSA increased from t0 to t2: t0 = 225.1 cm2 (79.0 - 500.2), t1 = 247.8 cm2 (102.8 - 674.3), and t2 = 272.2 cm2 (92.2 - 668.4). The volume increased from t0 to t2: t0 = 21.5 cm3 (8.0 - 63.2), t1 = 24.1 cm3 (9.6 - 67.3), and t2 = 26.9 cm3 (6.2 - 67.4).
CONCLUSIONS: Posterior airway space PAS values became higher than preoperatively. In particular, flap type had a significant influence on the three PAS parameters.