Clinical efficacy of mouse nerve growth factor in the treatment of sudden deafness / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To study the clinical efficacy of mouse nerve growth factor (NGF) in the treatment of sudden deafness.@*METHOD@#A retrospective analysis was performed on 115 cases of hospitalized patients who were suffered from sudden deafness. Patients were divided into two groups according to treatment medicine. Control group: patients were treated with intravenous vasodilators, energy mixture, steroid pulse therapy, and methylcobalamin neurotrophic therapy. NGF group: intramuscular NGF treatment was added on the basis of conventional therapy mentioned above. Both treatments lasted 14 days, the total efficiency were compared. Patients were further divided into sub-groups according to age, duration and the level of pre-treatment PTA, and the treatment efficiency was further compared. By SPSS 11.0 statistical analysis, a P 60 dBHL, the efficiency of NGF therapy was not superior to the traditional treatment.@*CONCLUSION@#NGF can significantly improve the symptom of patients with short duration or low PTA. For this kind of patients, NGF adjuvant therapy should be recommended. For the patients with longer duration and higher level of PTA, NGF therapy is not advocated. NGF treatment should not be in consideration of the age.

Mastoidectomy in the treatment of secretory otitis media / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To investigate mastoidectomy efficacy in treating secretory otitis media.@*METHOD@#Retrospective analysis of 22 cases (24 ears) with chronic secretory otitis media,20 ears were treated with intact canal wall mastoidectomy combined with facial recess opening,4 ears were treated with opened mastoid surgery,3 ears simultaneously accepted tube insertion. Ventilation tube was pulled out in 6 months. Hearing test was inspected before and after surgery.@*RESULT@#None of the patients had hearing loss, 19 ears had varying degrees of hearing improvement. Seventeen ears were type A tympanometry curve, 7 ears were C-shaped curve. No recurrence of otitis media was observed after 6 - 36 months followed-up.@*CONCLUSION@#Mastoidectomy may improve eustachian tube function and decrease the risk of recurrence of secretory otitis media.

Study on treatment of 26 cases with nasal basal cell carcinoma / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To discuss the relationship between surgical margin and recurrence of nasal basal cell carcinoma.@*METHOD@#Twenty-six cases of nasal basal cell carcinoma were analyzed. Mohs microsurgical operation was used in 15 cases and conventional operation was used in 11 cases.@*RESULT@#Twenty-six cases of the tumors were resected and the wound defect was repaired concurrently. Two cases with tumor recurrence were subjected secondary resection and then no recurrence occurred.@*CONCLUSION@#Intraoperation frozen section can help guide the surgical margin. Skin tissue was saved and the repair was facilitated, it also help save the skin tissue , facilitate the repair, reduce the recurrence rate but increased the operation cost and time.

Modified intranasal endoscopic dacryocystorhinostomy in chronic dacryocystitis / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To evaluate the technique and curative effect of modified intranasal endoscopic dacryocystorhinostomy (EDCR) for chronic dacryocystitis.@*METHOD@#Twenty-two patients (Twenty-three eyes)with chronic dacryocystitis, undergoing modified intranasal EDCR were retrospectively analyzed in this study.@*RESULT@#The follow-up period ranged from six months to ten months. Twenty eyes were cured successfully and two eyes had relieved symptoms. While one case failed. No serious complications were found. The total effective rate was 22/23 (95.7%).@*CONCLUSION@#The modified intranasal EDCR is an effective method to treat chronic dacryocystitis.

The expression and potentially clinical significance of heparanase in nasopharyngeal carcinoma / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To investigate the expression of heparanase in nasopharyngeal carcinoma and the relationship between the expression of it and clinically pathological features of nasopharyngeal carcinoma.@*METHOD@#The expression of heparanase protein in 70 cases of nasopharyngeal carcinomas and 10 cases of normal nasopharyngeal tissues was detected by immunohistochemical staining. The date of expression combined clinical features, which included clinical stage, cervical lymph node metastasis rate, the rate of metastasis and recurrence, combination of, the 5-year survival rate, and other analysis, was analyzed.@*RESULT@#The positive rate of heparanase protein in cancerous tissues was 52.9% (37/70), while it was 0% in normal nasopharyngeal tissues. The positive rates of heparanase protein in patients were 30.0% (6/20) in stage I, 45.80% (11/24) in stage II, 70.6% (12/17) in stage III, 88.9% (8/9) in stage IV respectively. Heparanase positive tumors were associated with a higher incidence of lymph node metastasis (67.4%, 31/46) than heparanase negative ones (25.0%, 6/24). The rate of distant metastasis and regional recurrence in the heparanase positive group was 48.6% (18/37), but only 15.2% (5/ 33) in the heparanase negative group. The cumulative survival of patients in the heparanase negative group at 5 years was 78.8% (26/33), but only 24.3% (9/37) in the heparanase positive group. The clinical stage of disease, lymph node metastasis, the rate of distant metastasis and regional recurrence of nasopharyngeal carcinoma were correlated with positive expression of heparanase protein.@*CONCLUSION@#The expression of HPA was associated with invasion and metastasis and prognosis of nasopharyngeal cancer, and it may be a new target for the anti-treatment of nasopharyngeal cancer. (P < 0.01), and heparanase expression level inversely correlated with the patient survival (P < 0.01).@*CONCLUSION@#Heparanase may play important roles in the invasive infiltration, metastasis, and prognosis in nasopharyngeal carcinoma, clearly indicating that heparanase is a possible target for anticancer drug development.

Repair of facial nerve defects by using acellular nerve allografts implanted with Schwann cells in rats / 中华创伤杂志

Objective To observe the effects of in vitro isolated Schwann cells co-cultured with chemically acellular nerve allografts on improving repair of large facial nerve defects. Methods A total of 30 Wistar rats were equally randomized into three groups, ie, experimental group, allograft group and autograft group. Nerve defect of 12 mm in length was made in the left inferior buccal branch of facial nerve and repaired with acellular nerve allograft implanted with Schwann cells, acellular nerve allograft and fresh tibial nerve autograft respectively. At the 5th month postoperatively, the function and morpholo-gy of the regenerated nerves were observed by electrophysiological method, methylene blue staining and transmission electron microscope. Results In experimental group, the recovery rate (operation side/normal side) of amplitude of nerve-muscle action potential was (35.8±2.5)%, the lantency recovery rate (normal side/operation side) (65.8±2.9)%, the number of the regenerated axon 1 570±188 and the myelin thickness (0.383±0.031) μm. The results in the experimental group were significantly supe-rior to those in the acellular nerve allograft group (P < 0.05), with similar results to fresh nerve autograft group (P > 0.05). Conclusion Transplantation of Schwarm cells in acellular nerve allograft can im-prove repair of large facial nerve defects.

Repair of rat facial nerve defects with rabbit acellular nerve by chemical extraction / 中国耳鼻咽喉头颈外科

0.05). In the xenogeneic fresh nerve graft group, the xenogeneic nerve segment was rejected and absorbed by the recipient. CONCLUSION Xenogeneic acellular nerve could sustain facial nerve regeneration, and may be a substitute to autograft for repairing facial nerve defects.

Endoscopic Frontal Sinus Surgery through the Agger Nasi Cell / 中国微创外科杂志

Objective To discuss the effectiveness of endoscopic frontal sinus surgery through the agger nasi cell. Methods Twenty-seven patients with chronic frontal sinusitis were treated with endoscopic frontal sinus surgery. The frontal sinus was opened by resecting the agger nasi cell. Results The frontal sinus were opened successfully in all the patients. No complications occurred except periorbital bruising in 3 eyes. Nasendoscopy showed that the frontal sinus drainage pathway was normal after the operation. During a 6-month follow-up, the symptoms of the frontal sinus disappeared in 18 of the patients, improved in 7, and were not changed in 2. Conclusions Endoscopic frontal sinus surgery through the agger nasi cell is effective for chronic frontal sinusitis.The method is worth being widely used.