Objective To introduce the development of facial recess of 210 cases who recieved cochlear implantation and experienced the opening of the facial recess under the direction of high resolation computed tomography(HRCT).Methods The facial recess was assessed and measured using the HRCT before cochlear implantation in 210 patients who suffered from severe and profound sensorineural hearing loss.A statistic analysis was performed according to the age group,and the findings during the operation were compared with that before the surgery.Results The facial recess of 13 cases (6%) did not developed.The mean volume of the rest facial recess was 4.26 mm3 in 197 cases,while in 12.0 years group(group C) it was 3.09 mm3.The differences among three groups were statistically significant. The findings during the operation was agreed with the assessment results prior to the surgery.Conclusion 94% facial recesses developed in all 210 cases.Employment of HRCT scan prior to the surgery allows auurate determination of the location of facial recess to ensure successful surgery.

Objective To study the intracellular calcium ([Ca2+ ]i) in myocardial cell of obesity rats induced by high-fat diet. Methods Male Sprague-Dawley (SD) rats were divided into obesity resistant (OR, n=15), normal (Nor, n=15) and obesity prone (OP, n=15) group after fed with high-fat diet for 10 weeks. Their body fat and serum lipids were measured. Myocardial cells were isolated with Langendorff perfusion and [Ca2+]i was measured with calcium indicator Fluo-3/AM and laser scanning confocal microscope after KCl depolarization and caffeine- induced. Results Compared with those in Nor and OR rats, the epididymal fat, perirenal fat, omental fat and body fat increased in OP rats (P<0.05), as well as the the level of total cholesterol, triglyceride and low density lipoprotein (P<0.05); the vary of [Ca2+]i elevation and restoration were lower (P<0.05). Conclusion The vary of [Ca2+ ]i elevation decreases in OP rats after KCl depolarization and caffeine-induced, that may associated with arrhythmia in obesity rats.

OBJECTIVE To investigate the choise of operation approach for chronic otitis media surgery. METHODS Auditory and high resolution computed tomography (HRCT) assessment were carried out prior to the operation in 160 ears with otitis media. Tympanoplasty or mastoidectomy and tympanoplasty were performed. RESULTS Thirty-one patients received tympanoplasty and 129 patients received mastoidectomy and tympanoplasty. Closed and opened surgery were performed in 49 and 80 cases respectively. The ear-drying time ranged from 7 to 51days with an average of 23 days. Mean hearing increased by 15dB. CONCLUSION Assessing the HRCT scan prior to the surgery can help us choose a reasonable approach in chronic otitis media surgery.

Purpose To observe the functional expression of calcium sensing receptor ( CaSR) in human gastric cancer SGC-7901 cell line, the effect of CaSR on intracellular calcium, cell proliferation and migration of SCG-7901. Methods The expression and distribu-tion of CaSR were detected by Western blotting and immunofluorescence observation in SGC-7901. The intracellular concentration of free calcium ( [ Ca2+] i ) was determined by confocal laser scanning microscopy. MTT, flow cytometry and scratch test were used to an-alyze the impact of CaSR the proliferation and the migration capabilities of SGC-7901 cell. Results CaSR protein was expressed in SGC-7901. Extracellular calcium or calindol significantly increased the expression of [Ca2+]i, CaSR and E-cadherin;In addition, the migration capabilities were decreased. Conclusion CaSR is expressed in SGC-7901. The activation of CaSR induces the expression of E-cadherin, and decreases migration ability.

OBJECTIVE: To discuss the indication and approach of cochlear implantation with common cavity inner ear malformation. METHOD: Through imaging examination preoperatively for profound sensorineural hearing loss patients, we found 6 cases with common cavity inner ear malformation, in which cochlear, vestibule and lateral semicircular canal formed a big cavity. Among these cases, five had residual hearing, in the others, residual hearing was not detected. RESULT: Among these cases with common cavity, 5 cases with residual hearing were treated with cochlear implantation, in 3 cases we selected round window approach, in the other 2 cases, we implanted the electrodes through the joint of the common cavity and posterior semicircular canal. Postoperatively, All these 5 patients have auditory response with cochlear implantation. The patient without residual hearing was not given cochlear implantation. CONCLUSION In patients with common cavity inner malformation, those who have residual hearing have indication for cochlear implantation, but it must be emphasized that their effect may not be as good as patients without inner ear malformation. In those patients without residual hearing, cochlear implantation should better not be performed.
Adolescent ; Child ; Child, Preschool ; Cochlea ; abnormalities ; Cochlear Implantation ; methods ; Contraindications ; Ear, Inner ; abnormalities ; Female ; Humans ; Male ; Semicircular Canals ; abnormalities

Aged ; Female ; Humans ; Male ; Melanosomes ; Metaplasia ; Middle Aged ; Nasopharynx ; cytology ; pathology ; Oxyphil Cells ; cytology

Objective To investigate the effect of corneal plastic surgery on stereopsis and dynamic regulation of myopia and the mechanism of myopia.Methods From March 2015-March 2016,83 cases (166 eyes) myopia children in our hospital were subjected to corneal plastic surgery.The naked eye distant visual acuity,naked eye near visual acuity,naked eye near stereoscopic sharpness,dynamic adjustment function [Near point of accommodation (NP),adjusted sensitivity (AF),negative relative adjustment (NRA),positive relative adjustment (PRA)] and intraocular pressure,anterior chamber depth,central corneal thickness and axial length of children before wearing glasses,wearing glasses 6 months later,wearing glasses 12 months later were compared.Results The distant and near visual acuity,AF and PRA of naked eyes after 12 months wearing glasses were higher than those after 6 months wearing glasses,and all the above indexes were higher than those before wearing glasses,with statistically significant difference (P ＜ 0.05).After 12 months wearing glasses,the acuity of naked near stereopsis,NP and NRA were lower than those after 6 months wearing glasses,and all the above indexes 6 months after wearing glasses were lower than those before wearing glasses (P ＜ 0.05).There were no significant differences in intraocular pressure,anterior chamber depth,central corneal thickness and axial length between children before wearing glasses,6 months after wearing glasses and 12 months after wearing glasses (P ＞ 0.05).Conclusions Corneal plastic surgery can significantly correct the visual acuity of children,improve their stereovision,control the progression of myopia,improve the ocular adjustment function of children,and its safety is high.

Cardiac Catheterization ; Ductus Arteriosus, Patent ; therapy ; Heart Septal Defects, Atrial ; therapy ; Humans ; Printing, Three-Dimensional ; Vena Cava, Inferior

Objective To analyze the risk factors for lung injury and pulmonary arterial hypertension in patients with chronic obstructive pulmonary disease(COPD),and the predictive value of serum SDF-1 and sRAGE for lung injury and pulmonary arterial hypertension.Methods A total of 200 patients with COPD admitted to our hospital from January 2021 to January 2023 were selected as research objects,23 of whom occurred lung injury and the rest 177 had no lung injury,and 31 developed pulmonary hypertension and the remaining 169 had no pulmonary hypertension.The predictive value of serum SDF-1 and sRAGE for pulmonary injury and pulmonary hypertension was analyzed.Results Multi-factor logistic regression analysis showed that D-D,PCT,CRP,RDW,MPV,PLT,NLR,SDF-1,sRAGE,pulmonary hypertension,arterial blood oxygen partial pressure,FVC and FEV1 were the main factors affecting lung injury in patients with COPD.D-D,PCT,CRP,RDW,MPV,PLT,NLR,SDF-1,sRAGE,arterial partial oxygen pressure,FVC,FEV1 and CT angiographic pulmonary artery volume were the main factors affecting the occurrence of pulmonary hypertension in those patients(P<0.05).Serum SDF-1 and sRAGE were positively correlated with lung injury and pulmonary hypertension in patients with COPD(P<0.05).The sensitivity and accuracy of SDF-1 and sRAGE for predicting lung injury and pulmonary hyperten-sion in patients with COPD were higher than those of SDF-1 and SRage alone(P<0.05).Conclusions Pulmonary injury in patients with COPD is associated with D-D,PCT,CRP,RDW,MPV,PLT,NLR,SDF-1,sRAGE,pulmonary hypertension,arterial blood oxygen partial pressure,FVC,FEV1.The occurrence of pulmonary hyper-tension is related to D-D,PCT,CRP,RDW,MPV,PLT,NLR,SDF-1,sRAGE,arterial partial pressure of oxy-gen,FVC,FEV1 and CT angiography of pulmonary artery volume.Combined detection of SDF-1 and sRAGE has a higher predictive value for lung injury and pulmonary hypertension.

Objective To explore the effects of small incision in situ release on surgical indications,nerve conduction velocity and upper limb function in patients with carpal tunnel syndrome(CTS).Methods A total of 100 CTS patients admitted to our hospital from January 2018 to January 2022 were selected,they were randomly divided into the control group(50 cases,treated with traditional carpal tunnel release)and the observation group(50 cases,treated with small incision in situ release),the clinical data of CTS patients were collected and surgical indications,nerve conduction velocity,upper limb function and the incidence of complications were compared between the two groups.Results The total effective rate was 98.00％in the observation group and 84.00％in the control group(P＜0.05).In the observation group,the length of incision was(1.65±0.29)cm,the time of opening and closing incision was(4.85±1.02)min,the hospitalization time was(3.24±0.62)d,the intraoperative blood loss was(17.88±3.53)mL,and the VAS score was(3.03±0.56)points one day after operation.The control group were(4.02±0.81)cm,(10.06±2.28)min,(7.11±1.34)d,(24.37±5.27)ml,(4.04± 0.89)points,the differences were statistically significant(P＜0.05).After treatment,The thumle-wrist sensory conduction velocity of CTS patients in the study group was(46.05±8.39)m/s,the middle finger-wrist sensory conduction velocity was(45.05±8.95)m/s,the thenar muscles-wrist motor conduction velocity was(53.94±11.47)m/s,the FIM ADL score was(34.38±7.22)points,and FMA The upper limb score was(34.23±7.25)points,and the control group was(41.86±8.22)m/s,(40.88±8.28)m/s,(49.05±10.01)m/s,(27.81±6.01)points,(41.05±9.19)points.The difference between the two groups was statistically significant(P＜0.05).The total incidence of complications was 4.00％in the observation group and 20.00％in the control group(P＜0.05).Conclusion Small incision in situ release is effective in the treatment of CTS patients,which can improve the surgical indications and nerve conduction velocity,help patients recover upper limb function,and reduce the incidence of postoperative complications.