The Journal of laryngology and otology · 2022
Healing after transoral carbon dioxide laser surgery for early glottic cancer.
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Jabbour N, Tracy J C, Du E, Tracy L F
Аннотация
OBJECTIVE: This study aimed to evaluate the clinical significance of granulation tissue after endoscopic carbon dioxide laser surgery for glottic cancer.
METHOD: This was a retrospective review of 36 patients who underwent endoscopic carbon dioxide laser surgery for T1 and T2 glottic cancer. Post-operative, endoscopic examinations were rated by three blinded otolaryngologists for time to heal and presence of granulation. Patient and surgical factors were compared with time to heal and granulation.
RESULTS: A total of 16 of 36 wounds (44 per cent) developed granulation tissue, and 24 wounds (67 per cent) healed without requiring surgical intervention. A total of 7 of 8 wounds biopsied more than 3.5 months after surgery had persistent cancer versus 1 of 4 wounds biopsied at equal to or less than 3.5 months (85.7 per cent vs 25 per cent; p = 0.03). Biopsy at more than 3.5 months was associated with 28-fold increased odds of cancer in biopsy compared with biopsy at equal to or less than 3.5 months (odds ratio, 28.0; 95 per cent confidence interval, 1.088-373.3).
CONCLUSION: After carbon dioxide laser surgery for glottic cancer, development of granulation tissue is common. Granulation that persists for more than 3.5 months necessitates biopsy because of increased risk of persistent cancer.
METHOD: This was a retrospective review of 36 patients who underwent endoscopic carbon dioxide laser surgery for T1 and T2 glottic cancer. Post-operative, endoscopic examinations were rated by three blinded otolaryngologists for time to heal and presence of granulation. Patient and surgical factors were compared with time to heal and granulation.
RESULTS: A total of 16 of 36 wounds (44 per cent) developed granulation tissue, and 24 wounds (67 per cent) healed without requiring surgical intervention. A total of 7 of 8 wounds biopsied more than 3.5 months after surgery had persistent cancer versus 1 of 4 wounds biopsied at equal to or less than 3.5 months (85.7 per cent vs 25 per cent; p = 0.03). Biopsy at more than 3.5 months was associated with 28-fold increased odds of cancer in biopsy compared with biopsy at equal to or less than 3.5 months (odds ratio, 28.0; 95 per cent confidence interval, 1.088-373.3).
CONCLUSION: After carbon dioxide laser surgery for glottic cancer, development of granulation tissue is common. Granulation that persists for more than 3.5 months necessitates biopsy because of increased risk of persistent cancer.