Objective To investigate the effect of intermittent pneumatic pressure pump on the formation of deep venous thrombosis of lower extremity in elderly patients undergoing thoracotomy. Methods Fifty patients undergoing thoracic surgery were managed with intermittent pressure inflation pump besides general preventive measures. The pre-and postoperative blood flow in the lower extremity and incidences of deep venous thrombosis were compared. Result The differences in blood flow in the lower extremity and incidences of deep venous thrombosis were not statistically significant (P>0.05). Conclusion Intermittent pneumatic pressure pump can promote pulsatile blood flow in the lower extremity so as to effectively prevent formation of deep venous thrombosis in elderly patients after thoracotomy.

OBJECTIVETo explore the curative effect and adverse reactions of a convenient expiratory positive airway pressure device(EPAPD) in treatment of obstructive sleep apnea/hypopnea syndrome(OSAHS). METHODS74 subjects with OSAHS were treated by EPAPD. Polysomnography(PSG) and Epworth sleepiness scores(ESS) were performed and evaluated before, within 1 week and after 3 months using the EPAPD. The index of PSG and ESS were compared at different time. The adverse reactions were also observed at the same time.RESULTS Compared to baseline, the AHI, LSaO2, ESS were significantly improved both within 1 week and after 3 months(AHI:F=73.62,P=0.00; LSaO2:F=12.65,P=0.00; ESS:F=61.49,P=0.00). The improvement of AHI between different OSAHS groups(divided by the severity of AHI in baseline) was significantly different(within 1 week:F=15.39,P=0.00; after 3 months:F=12.60,P=0.00). There was also significant difference between different hypoxia groups which were divided by the severity of LSaO2 in baseline(within 1 week:F=3.80,P=0.03; after 3 months:F=3.27,P=0.04). Meanwhile, the ESS was significantly improved in different sleepiness groups(divided by the ESS score in baseline) within 1 week(F=6.17,P=0.00). The device-related adverse events were reported by 44.59%(33/74). There were not serious adverse reaction happened. The major adverse reactions were throat and nose dry, nasal obstruction, and nose discomfort.CONCLUSION The EPAPD is an effective, convenient device in treating OSAHS. Meanwhile, the device related adverse reactions are slight. It may be more efficient for serious OSAHS patients than mild ones.

OBJECTIVE To investigate the distribution features and clinical significance of allergens in patients with chronic rhinosinusitis(CRS). METHODS A retrospective analysis was performed in 136 cases of CRS. Allergen features were compared in the two subtypes of CRS: chronic rhinosinusitis with nasal polyps(CRSwNP) and chronic rhinosinusitis without nasal polyps(CRSsNP). Differences of allergens features of CRS were analyzed, and they were compared to the allergens of 36 patients with allergic rhinitis(AR). RESULTS The total allergen positive rate in CRS was 48.5％. The allergen positive rate, distribution proportion of inhaled and food allergens, distribution proportion of allergens subsets, distribution proportion of single and multiple allergens between two subtypes of CRS had no significant difference(P >0.05). The major allergens of CRS were single inhaled allergens(84.8％). Some CRS patients were allergic to food allergen(9.1％). The minority allergens of CRS were a mixture of inhaled and food allergens(6.1％). Compared to AR, the distribution proportion of inhaled and food allergens(χ2=14.801, P =0.001), the distribution proportion of allergens subsets(χ2=12.951, P=0.005), and the distribution proportion of single and multiple allergens(χ2=9.067, P=0.003) had significant difference. CONCLUSION The allergen positive rate of CRS is much higher than the prevalence of allergic diseases in general population, suggesting that allergic factors may be closely correlated to the pathogenesis of CRS. The clinical features of allergens are similar in the two subtypes of CRS, while there are significant differences in allergen distribution between CRS and AR patients. The detection of allergens may be helpful in prevention and treatment of CRS.

Objective To study the location and the expression of nerve growth factor(NGF)in mouse testes at different developmental stages.Methods The testes were taken out from mice at different developmental stages,respectively.Parts of the testis tissue were used to extract total RNA and real-time PCR was used to detect the expression of NGF.The rest tissues were fixed and embedded in paraffin.SABC immunohistochemical staining was used to observe the location of NGF in the testes. Results Reat-time PCR results showed that NGF mRNA could be detected in the testes of mouse at postnatal 1 st week and its expression level increased with the development,and reached the highest point at 3rd week.After 5 weeks it lowered down to a stable level.Immunohistochemistry showed that NGF expressed in the mouse testes at all developmental stages.At postnatal 1 st week immunopositive reaction of NGF was detected mainly in sustentacular cells and the spermatogonia also showed positive staining.NGF positive staining in the testes was observed in interstitial cells,spermatogenetic cells,sustentacular cells and Leydig cells at 3rd week.After the postnatal 5th week,NGF-positive immunostaining was also detected in intersitial cells and spermatogenetic cells,but the intensity of reaction was weaker than that at 1 st and 3rd weeks.Conclusion The expression levels of NGF in mouse testes show regular changes and the expression profile and location of NGF in the testes are different at different developmental stages.

Objective To explore the common bleeding location, disease features, and the management strategies of intractable aged epistaxis. Methods 134 serious epistaxis patients were examined step by step according to nasal anatomic structure and treated by a stepwise way under endoscopy. Results The bleeding location of the intractable aged epistaxis were found as follows:2 cases (1. 49%) in anterosu-perior area, 44 cases (32. 84%) in anteroinferior area, 18 cases (13. 43%) in posterosuperior area, 22 cases (16. 42%) in posteroinferi-or area, 3 cases (2. 24%) in nasopharynx, and the bleeding site of the other 45 cases (33. 58%) were not found. All the patients were healed. The final treatment way were:46 cases (34. 33%) with pharmacotherapy or cauterization (grade Ⅰ~Ⅲ), 88 cases (65. 67%) with anterior nasal packing (grade Ⅳ), 9 cases (6. 72%) with posterior packing(gradeⅤ),1 case (0. 75%) with selective angiographic embolization (grade Ⅵ). There were 82 cases (61. 19%) succeed with the initial hemostasis methods while 52 cases (38. 81%) succeed with the upgrade therapy. Both hemostasis methods and upgrade therapy had statistical significance in different nasal position groups ( hemo-stasis methods:χ2 =16. 35,P=0. 00; upgrade therapy: χ2 =16. 35,P=0. 00). Conclusion Compartmental examination and classified treatment steps by using endoscope may locate and stop nose bleeding promptly while decrease patients' pain and medical cost.

Objective To identify the risk factors of refractory secretory otitis and analyse the results .Meth-ods The study subjects were 42 patients(56 ears) with secretory secretory otitis media from June 2003 to June 2011 ,all patients were performed with ears ,nose ,pharynx and throat routine inspection and mastoid HRCT .All patients were retrospectively analyzed possible risk factors :suchas history ,infection ,eustachian tube dysfunction , chronic sinusitis ,deflection of nasal septum ,nose pharynx ministry malignant tumor ,tonsillitis ,adenoid hypertro-phy ,allergic rhinitis ,etc .Results In the multivariate analysis of 42 patients(56 ears) with refractory secretory oti-tis media and the control group of 50 patients(66 ears) ,statistically significant in the history (χ2 = 9 .814 ,P<0 .01) ,mastoid pneumatization adverse (χ2 =15 .301 ,P<0 .01) ,and allergic rhinitis (χ2 =32 .614 ,P<0 .01)were observed .Two of them were found to be significant in the logistic regression model :mastoid pneumatization adverse (OR=4 .44) ,and allergic rhinitis(OR = 15 .13) .Patients of mastoid pneumatization adverse with refractory otitis media is 4 .164 times (95% CI ,1 .903 ~9 .112);patients of allergic rhinitis was 17 .192 times higher than that of in no allergic patients (95% CI ,5 .850 ~ 50 .524) .Conclusion Mastoid pneumatization adverse and allergic rhinitis are the risk factors for refractory secretory otitis media .

Objective To explore the treatment using two different ventilation tubes insertion for secretory o-titis media ,and to determine which factors are associated with the tympanic membrane perforation after a extrusion or surgical removal of a ventilation tube(VT) .Methods A retrospective analysis of 121 cases (210 ears) with re-fractory secretory otitis media from 1998 June to 2013 March was carried out .There were 58 cases (105 ears ) and 63 cases (105 ears) in patients and control group ,respectively .All subjects had more than 2 years of history ,and were treated by two types of ventilation tube (Goode -T and Shepard tube) .Various factors were analyzed to deter-mine the factors associated with persistence of a tympanic membrane perforation after VT extrusion or removal ,in-cluding gender ,age ,medical history ,ventilation tube pattern ,location ,history of previous VT insertions ,intuba-tion period reason for VT insertion ,condition of the TM ,nature of the tympanic cavity effusion and previous ade-noidectomy ,et .Results Analysis factors of perforation group (105 ears) and the control group (without perfora-tion ,105 ears) ,were statistically significant in ventilation tube pattern (χ2 =6 .916 ,P<0 .01) ,history of previous VT insertions(χ2 =7 .325 ,P<0 .01) ,frequency of previous VT insertions (χ2 =13 .01 ,P<0 .01)and the nature of the tympanic cavity effusion(χ2 =7 .04 ,P<0 .01) .The proportion of perforation group about Goode - T ventilation tube ,history of previous VT insertions ,the frequency of tube (more than 3 times) ,mucus of the middle ear cavity were 58 .4% ,57 .3% ,66 .7% and 57 .9% respectively ,others had no significant difference between the two groups . The multivariate analysis showed that ,regardless of the ventilation tube ,the frequency of tube was the tympanic membrane perforation risk factor ;Goode-T tube increased the risk of perforation of tympanic membrane was 1 .637 times than Shepard tube(OR=1 .637 ,P<0 .01) .Conclusion Using the Goode - T type ventilation tube ,history of previous VT insertions ,the frequency of tube (more than 3 times) ,mucus of the middle ear cavity were four risk factors for persistence of a tympanic membrane perforation after VT insertion for secretory otitis media .

OBJECTIVE: To discuss the diagnosis and treatment of plasma cell granuloma in the head and neck region. METHOD: Retrospective analysis of 3 cases of plasma cell granuloma occurred in head and neck. One case treated with endoscopic surgery and nasal and oral steroids after operation. Two cases treated with Caldwell-Luc style resection, followed by oral steroids and radiotherapy, one of the two cases combined with chemotherapy simultaneously. RESULT: The patient done with endoscopic surgery followed up for 5 years, there was no tumor recurrence in the nasal cavity and maxillary sinus openings and sinus lining. Paranasal sinus CT was examed on the patient done with partial resection and radiotherapy 2 years after operation, no residual tumor proliferation. The third patient underwent paranasal sinus CT examination 3 years after operation, and no limitation of mouth opening was found. CONCLUSION The incidence rate of Plasma cell granuloma occured in head and neck is low. It is an inflammatory disease, but its physical signs and imaging findings are similar to malignant tumors. Because of the invasion feature, surgical resection should be the first choice, and if combined with radiotherapy and chemotherapy, the prognosis could be better.
Adult ; Female ; Granuloma, Plasma Cell ; diagnosis ; therapy ; Head ; pathology ; Humans ; Male ; Middle Aged ; Neck ; pathology ; Retrospective Studies

Objective To discover the existing problems and provide appropriate suggestions and countermeasures through the quality control inspection.MethodsA comprehensive quality control inspection was conducted for the radiotherapy equipment in 45 hospitals in Zhejiang province.The physical,technical,clinical and radiotherapy process and the parameters related to quality control were evaluated.Results As of December 31,2017,a total of 62 linear accelerators from 45 hospitals have been assessed.In the radiotherapy process,multiple quality control problems were identified in terms of radiotherapy equipment configuration,clinical work quality,radiotherapy technology and personnel qualifications.Besides,unreasonable equipment configuration,shortage of radiotherapy staff,clinical work flow and the quality assurance of physical radiotherapy remained to be resolved.Conclusion Regular quality control of radiotherapy plays a pivotal role in ensuring the accuracy,effectiveness and medical safety of radiotherapy.

Objective: To understand the changes of children s height, weight, blood pressure and gender differences, to explore the relationship between overweight, obesity and childhood hypertension, and to provide a scientific basis for childhood hypertension prevention. Methods: Physical examination data during 2013 to 2018 of ten primary school students in Shenzhen were collected. Growth rate of height, weight and blood pressure by age and gender were calculated. The generalized estimating equation was used to analyze the association between overweight, obesity and hypertension. Results: Weight, body mass index (BMI) and systolic pressure of boys and girls increased with age ( t/Z =3.89-31.52, P <0.05). The height growth rate of girls was higher than that of boys at the age of 8-11, and reaches the peak of height growth at the age of 10, while boys were two years later than girls(boys:7.68 cm, gilrs:7.42 cm). Weight and blood pressure growth rates were similar. At the same time, the growth rate of height and blood pressure had a synchronous trend, and the peak of the growth rate of blood pressure was also at the peak stage of height growth. The OR value of obesity on childhood hypertension was 1.62(1.48-1.81), and the OR value of overweight on childhood hypertension was 2.01(1.75-2.30), both P <0.01. Conclusion There are gender differences in children s height, weight, and blood pressure, and the growth rate of height and blood pressure shows a synchronous trend. Overweight and obesity in children can increase the risk of high blood pressure and hypertension.