Adult ; Aged ; Female ; Humans ; Male ; Middle Aged ; Otitis Media with Effusion ; surgery ; Postoperative Complications ; Treatment Outcome ; Young Adult

Objective: To study the impression of Chinese people on Chinese urban children, their main source of information about the Chinese people, and the infvuence of age, school, and gender upon their evaluation. Methods: 383 Chinese urban children ranging from 5 to 12 years were interviewed individually or investigated with the questionnaire. Results: Most of the children reported that the Chinese were happy, clean, peaceful, clever, hardworking, kind and nice. However, the urban children's positive impression of the Chinese people was decreased with their growing up. The study also found that children's information on the Chinese people was mainly in order from television, newspapers, books and cartoons, parents, classmates, friends and teachers, and radio, and that the information source became increasingly diversificed with age. No significant difference in gender and between two schools was found. Conclusion: Chinese urban children had a positive impression of Chinese people, and they had a preference and identity for Chinese people . Mass media were the main source of information.

Objective To investigate the features of transcatheter selective hepatic arteriography and efficacy of embolization in hepatic hemangioma. Methods Twenty-six patients of hepatic hemangioma underwent transcatheter selective hepatic arteriography and embolization with Lipiodol-ultrafluida as well as Pingyangmycin, and were followed-up for 3 - 12 months after treatment. Results The popcorn-like tumor stain sign and early fill-in and persistant staining sign of hepatic arterial angiography were observed in all patients before embolization. After one time of embolization, the tumor size decreased more than 25% in 22 patients (84.62%), less than 25% in 4 patients. No severe complication occurred. Conclusion Transcatheter selective hepatic arteriography and embolization is a favorable method of diagnosis and treatment for hepatic hemangioma.

Objective Comparing the diagnostic values for the malignant obstruction diseases of biliary tract between endoscopic retrograde cholangiopancreatography(ERCP)and MR cholangiopancreatography (MRCP). Methods Parallel analysis for the ERCP and MRCP data of 142 malignancies confirmed by surgery and/or ERCP among 383 biliary tract patients was retrospectively carried out. Results MRCP and ERCP were performed with exploration of 137 cases,showing the total conformity of 96.4%; together with localization conformities of 92.3% and 87.3%,qualitative conformities of 78.5% and 89.8% respectively. Conclusions In diagnosing the malignant obstructing disease of biliary tract,MRCP has the advantages in convenience,safety and low false negative,but with higher false positive than ERCP; however,if combined with ERCP can get higher positive conformity.(J Intervent Radiol,2007,16: 673-675)

Objective:To investigate the influence of sinter temperature alteration on the crystalline phase and microstructure of lithium disilicate glass-ceramic.Methods:Samples of lithium disilicate glass-ceramic were heated using the standard two stage heating-schedule at different final temperatures.All samples were observed by X-ray diffractometer (XRD),field emission scanning electron microscope(FESEM) and energy-dispersive X-ray spectroscopy(FE-SEM-EDS) for the evaluation of crystalline phase and microstructural evolution.Results:Crystalline phase and microstructure of ceramic samples showed significant changes during processing at different temperatures,especially at 800 ℃.Samples sintered at 840 ℃ displayed higher crystallinity(P<0.05) and denser microstructure.Conclusion:Temperature control is important in ceramic sintering.800 ℃ and 840 ℃ are the critical temperature points in the crystalline phase and microstructural evolution of lithium disilicate glass-ceramic.

Objective To investigate the clinical effect of dorsal carpometacarpal reversed island flap with dorsal metacarpal nerve to reconstruct finger. Methods We designed the dorsal reverse carpal and metacarpal island flaps with nerve by using the adjacent two dorsal matacarpal arteries as blood-supply and applied the stand of bone and tendon in waste finger or the free iliac transplantation to reconstruct the every sensory finger. Results Eighten cases were survived completely, and the skin degloving injuries of the finger in 3 cases. The maximum of the flap was 9cm by 8cm. Patients were followed up 3 months to 2 years,7 weeks later pain sense of reconstructed finger was recovered. Sensation over S3 amounts to 89% of the digits. Two-point-discrimination of the digits was 5-10mm. After the operation, the reconstructed finger obtained good appearance, the sensory recovery approach normally. The patients have ability to fulfil daily activities. Conclusion This method has advantages as follow:simple and practical,high survive rate,low impairment,sensible and good appearance.

Objective To investigate the clinical characteristics of the tympanic membrane atelectasis and treatment methods ,and to provide a reference value for future clinical diagnosis and treatment .Methods A retro‐spective analysis of 86 patients(104 ears) with tympanic membrane atelectasis treated in our hospital from June 2011 to August 2013 .Disease severity was classified according to the erasmus classification of atelectasis by Sade ,and pre- and post -operative air -bone gaps (ABG) were compared .Results There was no statistical difference of mastoid gasification on CT scan between mild and sever tympanic membrane atelectasis (P>0 .05) .While the sta‐tistical difference was found in two groups of whether there were soft tissues in middle ear and mastoid cavity on CT scan(P<0 .05) .There was an improvement in the average ABG for all stages .Conclusion This study demonstrated that surgical intervention had a favorable effect on hearing level across all stages .The treatment of atelectatic ears should be taken and individualized .

BACKGROUND:Nowadays,the internal fixation materials for the clinical treatment of femoral intertrochanteric fractures are broadly divided into two categories: intramedulary fixation system and extramedulary fixation system.Artificial femoral head replacement can be selected for unstable intertrochanteric fractures.However,the effects of diverse treatments usualy lack of macroscopical evaluation.OBJECTIVE:To investigate and compare the clinical effects of different surgical treatments for femoral intertrochanteric fractures in the elderly.METHODS:168 elderly patients with intertrochanteric fractures,who were treated in the Department of Orthopedics,Beijing Municipal Corps Hospital of Chinese People's Armed Police Forces from June 2005 to June 2010,were enroled in this study.They were treated by screw plate fixation system (dynamic hip screw,dynamic condylar screw),intramedulary fixation system (Gamma 3 nail,expandable intramedulary nail) and artificial femoral head replacement,including 69 males and 99 females,at the age of 75-94 years,averagely 81.4 years.According to Evans type,there were 20 cases of type Ⅰ,43 cases of type Ⅱ,57 cases of type Ⅲ,33 cases of typeⅣ and 15 cases of type Ⅴ.Operative time,blood loss,weight-bearing ambulation time,and hip function were compared and evaluated in patients of each group.RESULTS AND CONCLUSION:After treatment,patients were folowed up for 14-39 months.At 12 months after treatment,Harris score was used to assess hip function in the affected side.Fracture was healed within 12 months.There was no significant difference in excelent and good rate among four groups (P＞0.05).Operative time and blood loss were significantly better in the expandable intramedulary nail group than in the other groups (P＜ 0.05).Weight-bearing ambulation time was significantly better in the artificial femoral head group than in the other groups (P＜ 0.01).Results suggest that according to fracture typing,in combination with osteoporosis in elderly patients,suitable repair method could improve therapeutic effects for femoral intertrochanteric fractures,and reduce postoperative complications.Dynamic hip screw is firstly selected for Evens types Ⅰ and Ⅱ stable intertrochanteric fractures.The intramedulary fixation system can be selected for unstable intertrochanteric fractures as Evans types Ⅲ-Ⅴ.Artificial hip arthroplasty is good for elderly patients with unstable intertrochanteric fractures as wel as severe osteoporosis.

Objective To discuss the clinical features and treatment measures on patients with medium volume of supratentorial hypertensive cerebral hemorrhage in the elderly.Methods The clinical data of 57 patients with medium volume of supratentorial hypertensive cerebral hemorrhage aged ≥ 70 years were analyzed retrospectively.Results All of 57 patients,15 cases accepted medical treatment,42 cases were treated with minimally invasive operation for 1-26 (4.6 ± 6.5) h after onset.Three cases died in hospital,7 cases were transferred or gave up,6 cases lived as plant,8 cases were severely maimed,11 cases were moderately maimed,22 cases [38.6％(22/57)] recovered favorably.The main clinical characteristics of elderly patients:long history of hypertension,blood pressure fluctuation; atypical symptoms of increased intracranial pressure; more complications such as arrhythmia and pulmonary infection; most of family members of patients were pessimistic to treatment.Conclusions All factors should be thought over about the treatment of elderly patients with medium volume of hypertensive cerebral hemorrhage.Individual treatment is reasonable.Do not emphasize on early operation,minimally invasive operation can be helpful for patients.

Objective To investigate the effects of the free radical scavenger,edaravone,on patients undergoing cardiac valve replacement under cardiopulmonary bypass (CPB). Methods Thirty patients,including 7 males and 23 females,at a mean age of 41.4?10.4 (23 to 63),undergoing mitral or/and aortic valve replacement (MVR or AVR) under CPB from March to December 2009 in our hospital were subjected,and then divided into 2 matched groups by means of random number table,study group (n=14) and control group (n=16).Inclusion criteria: patients received valve replacement surgery under CPB; aging from 20 to 65; heart function: class Ⅰto Ⅲ; liver,kidney and lung function properly; blood gas and electrolyte properly. Exclude criteria: preoperatively used scavenger and the like; there was a history of cerebrovascular or neuropsychiatric symptoms; had a history of myocardial infarction or other coronary artery disease. In the intervention group,0.5 mg/kg of edaravone was diluted to 20 ml and introduced into CPB unit at the beginning,while the same dose of saline water was given in control group in the same way. Blood samples were collected from radial artery at following 5 time points,the beginning of CPB (T0),the end of CPB (T1),30 min (T2),6 h (T3),and 24 h (T4) after CPB. After the blood samples of all cases were collected,the serum level of hematocrit (HCT),malondialdehyde (MDA),inducible nitric oxide synthase (iNOS),cardiac troponin I (cTnI),creatine kinase-MB (CK-MB),myoglobin (Myo),S100 protein and neuron-specific enolase (NSE) was detected. Cardiac resuscitation and critically postoperative complications were observed. Results The level of HCT at T1-T3,cTnI at T4 was lower in study group than that in control (P