[Endoscopic coblation assisted arytenoidectomy in the treatment of bilateral vocal cord paralysis].

Objective: To introduce a new surgical technique for the treatment of bilateral vocal cord paralysis.

Methods: Twenty-nine patients with bilateral vocal cord paralysis treated in Dalian Municipal Central Hospital between 2008 and 2012 were retrospectively studied. Coblation assisted arytenoidectomy was performed in all cases.

[Coblation treatment for laryngeal papilloma in adult].

Objective: To evaluate the effect and feasibility of coblation treatment for laryngeal papilloma in adult.

Methods: A total of 18 patients with laryngeal papilloma treated by coblation from April 2008 to June 2010 was retrospectively analysed. There were 4 cases of multiple laryngeal papilloma and 14 cases of single laryngeal papilloma.

[Preliminary investigation of coblation for early glottic carcinoma].

Objective: To establish whether Coblation is a suitable modality for removal of early glottic carcinoma.

Methods: Fourteen patients with early glottic carcinoma (Tis-T2) without lymph node metastasis underwent resection of laryngeal cancer lesions using transoral endoscopic coblation (TEC), without pre- or post-operative radiotherapy and chemotherapy.

Results: No severe complication such as bleeding and dyspnea occurred in the cases.

[Comparative analysis of polysomnography and micro-sensitive mattress-sleep monitor used for obstructive sleep apnea hypopnea syndrome].

Objective: To assess the efficiency of mattress-type micro sensitive monitor (MMSM) in sleep monitoring.

Methods: Forty patients diagnosed as obstructive sleep apnea-hypopnea syndrome (OSAHS) by polysomnography (PSG) were randomly chosen, then received MMSM examination within 2 - 5 days. The results of both methods were compared, using the respiratory disturbance index, sleep efficiency, and obstructive factors as indicators.

[Endoscopic surgery using the low-temperature plasma radiofrequency for nasopharyngeal angiofibroma].

Objective: To evaluate the feasibility of endoscopic surgery using the low-temperature plasma radiofrequency for nasopharyngeal angiofibroma (NA).

Methods: The clinical data of 4 patients treated between December 2005 and August 2009 were retrospectively analyzed. The tumor in one patient was at stage I and three patients were at stage II, all these patients were treated by endoscopic surgery using the low-temperature plasma radiofrequency under controlled hypotension anesthesia.

[Endoscopic surgery using the low-temperature plasma radiofrequency for nasal hemangioma].

Objective: To evaluate the effect of endoscopic surgery using the low-temperature plasma radiofrequency for nasal hemangioma.

Methods: Clinical data of 15 patients treated between October 2007 and October 2009 under endoscopic surgery using the low-temperature plasma radiofrequency were retrospectively studied.

Results: All tumors in 15 patients were completely removed.

[Endoscopic surgery using the low-temperature plasma radiofrequency for nasal inverted papilloma].

Objective: To evaluate the effect of endoscopic surgery using the low-temperature plasma radiofrequency for nasal inverted papilloma. Methods In a retrospective study, clinical data of 8 patients underwent endoscopic surgery were analyzed since July 2008. Tumor stage according to Krouse was T1:1, T2:6, T3:1, T4:0, respectively.

[Expression of monocyte chemotactic protein 1 and vascular endothelial growth factor in nasal polyps].

Objective: To evaluate the relationship between the expression of monocyte chemotactic protein 1 (MCP-1) and vascular endothelial growth factor (VEGF) in nasal polyp (NP) tissues and the role of MCP-1 in the formation of nasal polyps.

Methods: Forty nasal polyp tissues obtained from NP patients were used to detect the expression of MCP-1 and VEGF at the levels of protein and mRNA by immunohistochemical and in situ hybridization assay. Twenty-five inferior turbinate (IT) samples obtained from chronic rhinitis patients were used as control.