ObjectiveTo investigate the loss of heterozygosity (LOH) on 6q in bladder tumor.MethodsD6S404 and D6434 microsatellite markers near 6q21 were tested by PCR-SSLP-stain method on tumor DNA from 31 cases of bladder tumor.ResultsAmong these 31 cases of bladder tumor,LOH was detected in tumor tissues on site for D6S404 (35.5%) and D6S434(22.6%).ConclusionOne or more tumor suppressor gene near 6q21 maybe relevant for the development of bladder tumor.

Objective To identify the model parameters of surface Electromyography (sEMG) by comparison between simulated and recorded signals. Methods A physiological model of sEMG signal was established basing on several logical hypothetical conditions, such as motor unit action potentials (MUAP), motor unit recruitment and firing behavior caused by excitation, architecture of volume conductor and other simulated factors. According to the matched shapes between the simulated and recorded sEMG signals, a group of model parameters was obtained; according to the similar power spectrum variations of real sEMG signals, decreased muscle fiber conduction velocity (MFCV) was applied to simulate the sEMG signals of the fatigued muscle. Results The experimental results showed that the simulated superimposed MUAP shapes could be matched with the recorded MUAPs satisfactorily by adjusting some proper physiological parameters of the model. When the MFCV of each fiber was assumed to decrease, the mean and median frequency (MNF, MDF) of the simulated sEMG signals declined, and this phenomenon was very similar to that of the recorded sEMG signals and could be used to interpret the muscle fatigue process. Conclusion This model provides an effective approach to simulate real sEMG signals, and the simulated signals can also be used to help the analysis of recorded sEMG signals.

Adult ; Alcoholism ; complications ; Humans ; Lipomatosis, Multiple Symmetrical ; diagnostic imaging ; etiology ; pathology ; surgery ; Male ; Neck ; diagnostic imaging ; pathology ; surgery ; Tomography, X-Ray Computed

Objective To explore the effects of recombinant human hormone(rhGH) on the plasma total protein,plasma albmin,healing of Wound surfaces in patients with the second degree burns wound.Methods 38 pa- tients with the second degree burns wound were divided into treatment group and control group randomly.All the patients were subject general.19 patients in the treatment group were given rhGH in a dose of 0.2U/kg for 14 days beginning from postoperative 5 days.The plasma total protein concentration,plasma albumin concentration,healing rat of wound surface and scar of patients of the two group were compared.Results The plasma total protein concen- tration plasma albumin concentration of the treatment group were significantly in creased,the scar hyperplasia of the treatment group were significantly mitigated and the healing time of wound surfaces of the treatment group were sig- nificantly shortened.Conclusion rhGH is found to promote protein anabotism and shorten the healing time of wound surfaces and mitigate the scar hyperplasia patients with the second degree burns wound.

OBJECTIVETo summarize the clinical features, diagnosis and treatment of chest trauma.

METHODSA retrospective analysis was conducted among 336 cases of chest trauma admitted to our hospital from January 2009 to May 2011.

RESULTSOut of all cases, 325 were cured, accounting for 96.7%; 11 died, accounting for 3.3%. Among the dead cases, one died of hemorrhagic shock, three of acute respiratory distress syndrome, three of multiple organ failure, and four of severe multiple traumas.

CONCLUSIONS(1) For patients with severe chest trauma, early emergency treatment is crucial to save life. (2) Open thoracic surgery is needed for acute cardiac tamponade, intrapulmonary vascular injuries, progressive intrathoracic bleeding, lung laceration, tracheal breakage, and diaphragmatic injury. In addition, operative timing and method should be well chosen. (3) Pulmonary contusion is one of common complications in chest trauma, for which the combination of strong anti-infection therapy and mechanical ventilation is an effective treatment strategy.

Humans ; Lung ; Lung Injury ; Multiple Trauma ; surgery ; Retrospective Studies ; Thoracic Injuries ; surgery

0.05).Conclusions SNP of 2350G→A in ACE gene is associated with MI,AA genotype is probably a genetic marker of MI in Han nationality.

[Objective]To study the clinical efficacy of embolization in treating cerebral arteriovenous malformations(AVMs) using a new liquid embolic agent,FuAiLe medical adhesive (FAL,main ingredients:α-octyl cyanoacrylate and α-butyl cyanoacrylate).[Methods]Femoral artery was catheterized under local anesthesia,and then superselective catheterization to intracranial lesions were obtained using marathon 1.3F microcatheter.Fifteen cerebral AVMs were embolized by FAL.The diameter of AVMs was larger than 6 cm in 4 cases,3-6 cm in 7 cases and smaller than 3 cm in 4 cases.Single blood supply was observed in 3 cases,2 blood supplies in 5 cases and 3 blood supplies in 7 cases.Surgical ablation was applied after embolization in 3 cases,and gamma knife treatment was applied after embolization in 2 cases,[Results] A total of 26-time embolization was obtained in 15 patients;more than 80％ embolization was achieved in 8 cases,including 5 with complete embolization;and 50％-80％ embolization was achieved in 5 cases;less than 50％ embolization was achieved in only 2 cases.No serious complication associated with embolization was noted in all patients.[Conclusion] It is safe and effective for FAL to treat cerebral AVMs and FAL may be an ideal embolic agent.

[Objective] To evaluate the clinical efficacy and safety of propranolol in treating infantile hemangiomas.[Methods] Ninety children with hemangioma collected from July 2010 to November 2011 were recruited in this study.Oral propranolol was given at a dose of 1.5-2.0 mg/kg per day,and the dose was adjusted according to the growth of body weight.Patients were revisited every month for the observation of appearance of hemangioma.The following parameters,including blood glucose,alanine transarninase,aspartate aminotransferase,urea nitrogen,creatinine,creatine kinase,heart rate,blood pressure,electrocardiogram and ultrasound image of hemangioma,were monitored before and after the administration of propranolol.[Results] A rapid halt in haemangioma proliferation was seen in 91.1％ (82/91) of the patients within 24-48 hours after the administration of popranolol.After 1-10 months of treatment,haemangioma shrunk by 0-25％ with a lightening of lesional color in 8.0％ (7/88) of the patients,by 26％-50％ with an obvious lightening of lesional color in 39.8％ (35/88),by 51％-75％ with a marked lightening of lesional color in 26.1％ (23/88),and 26.1％ (23/88)of the patients achieved a shrinkage of more than 75％ or fading of lesional color.The 7-8 months of treatment leaded to the best outcome,followed by 5-6 months,3-4 months,and 1-2 months,of treatrnent.No rebound was observed in patients who stopped the treatment at 10 months to l year and 4 months of age.Usually during early stage of the therapy,some of the patients suffered from reduced diastolic blood pressure,sleep disorder,loose stools,hypoglycemia,cold extremities,bronchial hyperreactivity,elevated alanine transaminase/aspartate aminotransferase or creatine kinase isoenzyme,most of which were tolerable and relieved with or without symptomatic treatment.[Conclusion]s Propranolol can suppress the growth and accelerate the regression of hemangiomas in proliferative phase,and also can promote the subsidence of hemangiomas in regressive phase.The side effects of propranolol are usually mild,but still need close monitoring.

OBJECTIVETo assess the value of fluorine-18 fluorodeoxyglucose (FDG)-positron emission tomography (PET) in carcinoma of the esophagogastric junction.

METHODSFrom December 1998 to April 2002, 27 patients were imaged with FDG-PET and FDG avid masses in the esophagogastric junction were found in every patient. FDG-PET data was analyzed by visual method and standardized uptake value (SUV). FDG-PET results were compared with pathological results and follow-up survey.

RESULTS16 carcinomas of the esophagogastric junction and 11 non-specific FDG-avid masses of normal stomach were all considered malignant by visual method. Maximum and mean Standard uptake value (SUV) of cancer were 6.71 +/- 2.75 and 5.46 +/- 2.31, respectively; SUVmax and SUVmean of non-specific FDG avid mass were 2.99 +/- 0.67 and 2.38 +/- 0.51 respectively; SUV of cancer was higher than that of non-specific FDG avid mass (Z = -4.171, Z = -4.195, P < 0.01).

CONCLUSIONSFDG-PET has limited value in differentiating carcinoma of the esophagogastric junction from non-specific FDG avid mass of normal stomach.

Adult ; Aged ; Diagnosis, Differential ; Esophagogastric Junction ; diagnostic imaging ; Female ; Fluorodeoxyglucose F18 ; Humans ; Male ; Middle Aged ; Positron-Emission Tomography ; Radiopharmaceuticals ; Retrospective Studies ; Stomach Neoplasms ; diagnostic imaging

BACKGROUNDThymectomy is considered the most effective treatment in patients with myasthenia gravis. This study aimed to explore the predictors of postoperative myasthenic crisis in patients with myasthenia gravis after thymectomy.

METHODSClinical records of 243 patients with myasthenia gravis who underwent thymectomy were reviewed retrospectively. The following factors were analyzed in relation to the occurrence of myasthenic crisis after thymectomy: gender, age, duration of symptoms, Osserman stage, history of myasthenic crisis, concomitant diseases, preoperative pyridostigmine dose, preoperative steroid therapy, operation approach, operation time, presence of thymoma, major postoperative complications.

RESULTSForty-four patients experienced postoperative myasthenic crisis during the first month after thymectomy. Univariate analysis revealed that Osserman stage (RR = 0.0976, P = 0.000), history of myasthenic crisis (RR = 0.2309, P = 0.012), preoperative pyridostigmine dose (RR = 0.4349, P = 0.016), thymoma (RR = 0.0606, P = 0.000), and major postoperative complications (RR = 0.1094, P = 0.000) were significantly related to postoperative myasthenic crisis. Multivariate Logistic regression analysis showed that Osserman stage (IIb + III + IV) (RR = 0.0953, P = 0.000), thymoma (RR = 0.0294, P = 0.000), and major postoperative complications (RR = 0.0424, P = 0.000) independently predict postoperative myasthenic crisis.

CONCLUSIONOsserman stage (IIb + IIIb + IV), thymoma and major postoperative complications are independent predictors of postoperative myasthenic crisis in patients with myasthenia gravis who underwent thymectomy.

Adolescent ; Adult ; Aged ; Child ; Female ; Humans ; Male ; Middle Aged ; Myasthenia Gravis ; surgery ; Postoperative Complications ; Thymectomy ; adverse effects ; Treatment Outcome ; Young Adult