Coblation is a new technology widely used in the otolaryngology in recent years.This article described the principle,indications,methods and advantages which the coblation was used in pharynx and throat diseases in children.It's a safe,effective and minimally invasive way.

OBJECTIVE: To investigate the therapeutic effects of 768 coblation treatment in children with obstructive sleep apnea-hypopnea syndrome. METHOD: A review of 768 coblation treatment in children with obstructive sleep apnea-hypopnea syndrome was presented with respect to the sleep monitoring results, therapeutic effects and complications. RESULT: The time of pseudomembrane ablate was 10-14 d after operation. There were 11 patients occurred Secondarily bleeding within 1 week and 21 patients lymphatic tissue hyperplasia compensatorily within half a year after operation. After operation 3 months, the sleep Monitoring results were improved remarkably (P < 0.01) and the symptoms of snore and choke improved. CONCLUSION Coblation treatment in children with obstructive sleep apnea-hypopnea syndrome can reduce bleeding volume and improve obstruct syndrome apparently. The treatments of tonsils and adenoids differ with the characteristics of children and tympanotomy was fit for chil dren with secretory otitis media.
Catheter Ablation ; Child ; Child, Preschool ; Female ; Follow-Up Studies ; Humans ; Male ; Retrospective Studies ; Sleep Apnea, Obstructive ; surgery

OBJECTIVE: To investigate the result of child-type micro-sensitive mattress sleep monitor on obstructive sleep apnea-hypopnea syndrome in children. METHOD: The PSG and child-type micro-sensitive mattress sleep monitor were synchronously performed on 58 cases of children with OSAHS. The breathing and sleep metrics were compared. RESULT: By PSG monitoring, 41 cases were diagnosed as mild OSAHS, 14 cases were moderate and 3 cases were severe. The results of mattress system monitoring showed mild OSAHS in 37 cases, 16 cases of moderate and severe OSAHS in 5 cases. Seven patients diagnosed as mild OSAHS monitored by PSG were classified as moderate by mattress system monitoring; three cases diagnosed as mild OSAHS by mattress system monitoring system were diagnosed as moderate by PSG. Among 14 cases of children diagnosed as moderate by PSG, three cases were diagnosed as mild by mattress system monitor and two cases as severe. Children diagnosed as severe by PSG got the same result by mattress system monitor. Two kinds of sleep monitoring methods were compared and there were no statistically significant difference in AHI (t = 2.316, P > 0.05), deep and shallow sleep constituent ratio (t = 2.280, t = 2.388, PF > 0.05). while there was significant difference in REM period Sleep constituent ratio (t = 3.135, P < 0.01). CONCLUSION Child-type micro-sensitive mattress is in good agreement with the PSG for diagnosing OSAHS in children, which can be used as a monitoring method in clinical work.
Child ; Child, Preschool ; Female ; Humans ; Male ; Polysomnography ; instrumentation ; methods ; Sleep Apnea, Obstructive ; diagnosis

Objective To establish three dimensional finite element model libraries of telescopic dentures and removable partial dentures by means of model libraries, and compare the characteristics of stress distribution among three prostheses. Methods Normal model libraries were imported and edited, and models of bilateral free-ended cases were established. Based on the model libraries of fixed partial dentures and removable partial dentures, the finite element models of telescopic dentures and removable partial dentures with medial or distal occlusal rest were established using softwares such as DELL Precision Graphics Workstation, UG 5.0, HyperMesh 7.0 and Abaqus 6.5, then finite element stress analysis was performed. Results The stress distribution on abutment root, parodontium, alveolar mucosa and alveolar bone was uniform. The maximum value of stress on the abutment root (6.205 Mpa) was much less than those of two removable partial dentures (18.41 Mpa and 34.49 Mpa). Conclusion For bilateral free-ended cases, the telescopic denture design is uniform in stress distribution with less stress on abutment root, which is healthy to the abutment root and surrounding tissues.

Objective To redevelop the finite element model libraries and to analyse the stress distribution of telescopic crown dentures. Methods The finite element model libraries were redeveloped based on the model libraries of normal dentition, fixed partial denture and removable partial denture. With the help of softwares such as DELL Precision Graphics Workstation, UG 5.0, HyperMesh 7.0 and Abaqus 6.5, the telescopic denture models on the bilateral free-ended case were imported and edited, then the finite element stress analysis was performed. Results The models were easily established. The maximum value of stress and its distribution on abutment root, periodontal membrane, alveolar mucosa, alveolar bone and dental prostheses were observed and studied by the finite element stress analysis. Conclusion The way to establish models of telescopic crown dentures by model libraries is feasible and reliable.

Effect of new calcium antagonist m-nisoldipine (m-Nis) on MCT-induced PH in rats and its mechanisms were investigated. Rats were injected with a single doxe(60mg·kg-1)of MCT subcutaneously to induce PH. Pulmonary haemedynamic measurement and lung tissue morphological investigations were undertaken. The MDA production and SOD activity in the serum were tested. PCNA,ERK1 and p-ERK expressions were analyzed by Western blotting. The expressions of 5-HT and PCNA were observed with immunohistochemistry. Results suggested that the PAP, right ventricular index and the degree of muscularization of small pulmonary artery were elevated markedly in MCT group, which was attenuated by m-Nis treatment. A significant reduction in MDA production and an increase in the SOD activity in the serum were also observed in all three m-Nis groups. The number of PCNA and 5-HT positive smooth muscle cells increased significantly in MCT group, and m-Nis treatment attenuated the expression obviously. Western blotting results suggested that the protein expression of PCNA and the ratio of p-ERK/ERK1 increased markedly in MCT group and decreased by m-Nis. In conclusion, m-Nis protected against MCT-induced PH by decreasing PAP, right ventricular index, PAMSCs proliferation and pulmonary artery remodelling, which may be related to the reduction of 5-HT and the suppression of the ERK/MAPK signal pathway.

ObjectiveTo investigate the expression of Twist protein in adenocarcinoma of prostate and clinicopathological features and explore its roles in the carcinogenesis and progression of adenocarcinoma of prostate and its relationship with prognosis.MethodsThe expression of Twist was detected in 70 cases with adenocarcinoma of prostate and 30 cases with side cancer tissue by immunohistochemistry (EnlivionTM).ResultsThe expression of Twist protein in adenocarcinoma of prostate was higher than side cancer tissue.The expression of twist was related to Gleason grade,clinical stage and bony metastasis (P＜0.05),but it was not related to the age (P＞0.05).The survival rate of Twist protein positive patients was significant lower than negative patients(x2=9.52,P＜0.01).ConclusionsTwist might be an important biological marker for malignant transformation and invasion and metastasis adenocarcinoma of prostate,and the up-regulation of the expression of Twist reflects more invasion and poor prognosis.

Objective To evaluate the efficacy of metformin(MTF) in treatment of clomiphene (CC)-resistant patients with polycystic ovary syndrome (PCOS).Methods The published articles of randomized controlled trial (RCT) of comparison of MTF combined with CC and CC alone in treatment of CC-resistant PCOS were searched in PubMed,EMBASE,OVID,EBSCO databases and Cochrane Library,and these studies were screened under inclusion and exclusion criteria.The quality of included studies and extract data of comparison of ovulation rates and pregnancy rates were evaluated.And the Meta-analysis using statistic software RevMan 5.0 was completed.ResultTotal of 333 patients in total 8 trials were included.Meta analysis showed that MTF plus CC led to a significantly higher clinical ovulation rate ( OR =7.31,95 ％ CI:2.57 - 20.76,P ＜ 0.05 ) and pregnancy rate ( OR =7.93,95 ％ CI:2.45 - 25.63,P ＜ 0.05 ) than that of CC alone.Conclusion MTF can increase ovulation and pregnancy rates of CC-resistant PCOS women.

OBJECTIVE: To investigate the treatment for lingual thyroglossal duct cyst by low temperature coblation on endoscope. METHOD: Eleven cases of lingual thyroglossal duct cyst were treated by low temperature coblation on endoscope,to observe the curative effect and complication. RESULT: Eleven cases of lingual thyroglossal duct cyst were satisfied after operation, without serious complication. There were no recurrence during a followed up for 1-3 years after operation. CONCLUSION The operation for lingual thyroglossal duct cyst by low temperature coblation on endoscope was easy,safe and effective.
Adolescent ; Adult ; Child ; Child, Preschool ; Cold Temperature ; Endoscopes ; Female ; Humans ; Male ; Middle Aged ; Thyroglossal Cyst ; surgery ; Young Adult

OBJECTIVE: To evaluate the effect of the coblation under endoscopy on epiglottis cyst. METHOD: One hundred and ninety-three patients with epiglottis cyst were treated with coblation under endoscopy. Follow-up study was performed from 1 month to 6 months after treatments. RESULT: All 193 cases with epiglottis cyst were primary cured without serious complication and the cure rate was 100%. Moreover, the minor hemorrhage (1-5 ml) was observed. CONCLUSION The coblation under endoscopy on epiglottis cyst was safe, effective and minimally invasive.
Cysts ; surgery ; Endoscopy ; Epiglottis ; Follow-Up Studies ; Humans ; Laryngeal Diseases ; surgery