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To evaluate the correlation between quality of the surgical field, intraoperative bleeding during endoscopic sinus surgery (ESS) and the density of microvasculature of the nasal mucosa.Nasal mucosa of 30 patients, operated for chronic rhinosinusitis, was biopsied to assess expression of CD34 antigen on vascular endothelium. Quality of surgical field was evaluated with Fromm-Boezaart scale at mean...
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