Objective:To compare the effect of intraoral and extraoral approach for the sugical treatment of mandibular cysts in the angle and ramus. Methods:Cysts in the mandibular angle and ramus were treated by intraoral approach in 57 cases and extraoral in 18 cases. The following data were collected: operation time, peroperative blood loss, postoperative infection, mouth opening, recurrence rate, injury of the submandibular branch of the facial nerve and sensory function of the inferior alveolar nerve. The data of the two groups were compared statistically. Results:Average operation time (min) of intraoral and extraoral appoarch was 84.65?5.16 and 122.78?10.84(P0.05). Conclusion:Intraoral approach is effective in the treatment of cyst in mandibular angle and ramus.

Objective To compare the diagnostic value of CT and NE for lesions of nasal cavity and paranasal sinus area.Methods 80 cases of nasal and paranasal sinus diseases which were examined by both CT and NE at same period and proved by pathology.were reviewed.Results Compare with results of pathology,the accucy rate of both CT and NE was identical in diagnosing sinusitis and tumours of paranasal sinus,NE was higher than CT in nasal and paranasal sinus polyp and nasal cavity tumour,turbinate hyperplasia CT was higher than NE in paranasal sinus cyst and anatomic variations.Conclusion Pathologic biopsy can be taken under NE guide to understand the shape,texture and colour of the illness focus CT can show the size,shape and anatomy relation between lesion and its neighbor tissue.The diagnosis may more perfectly through NE combined with CT.

Objective To study 64-slice CT perfusion features of metastatic tumors of liver and its clinical value.Methods 23 cases (40 lesions) with liver metastases underwent CT perfusion scanning.Hepatic arterial perfusion index(HPI) parameters including blood flow perfusion(BF),patlak blood capacity (pBV),vascular permeability (P,permeability),arterial liver perfusion(ALP),portal venous perfusion( PVP ) were analyzed in comparison with that of normal liver .Results (1)BF, pBV , P , ALP , PVP and HPI in normal liver tissue were (47.85?8.11) ml?100ml-1?min-1,41.25?6.32 (1000:1), 64.25?11.10 (0.5 ml?100ml-1?min-1),(24.55?2.96) ml?100ml-1?min-1, (105.24?16.42) ml?100ml-1?min-1,(20.18?3.81),respectively.(2)BF,pBV,P,ALP and PVP between the normal hepatic tissue and the centre of lesions were of statistically significance (P

Congresses as Topic ; Humans ; Otorhinolaryngologic Surgical Procedures

BACKGROUND: Fresh amniotic membrane has been extensively used in treating ocular surface disease, which can inhibit fibrous tissue proliferation, inhibit neovascularization, and relieve inflammation. However, its application in treating glaucoma is rarely reported.OBJECTIVE: To explore the antiproliferative effect of fresh amniotic membrane on postoperative scar and compared with preserved amniotic membrane.METHODS: A total of 36 New Zealand white rabbits were randomly divided into 3 groups. Fresh amniotic membrane and preserved amniotic membrane combined with trabeculectomy separately underwent fresh amniotic membrane and preserved amniotic membrane transplantation. The control group was subjected to trabeculectomy alone. After 1, 2, 3, and 4 weeks, the morphology and function of filtering bleb were checked, and the platelet-derived growth factor (PDGF) of surrounding tissue was determined by immunohistochemical method.RESULTS AND CONCLUSION: Fresh amniotic membrane and preserved amniotic membrane groups displayed bulged filtering bleb with good filtering function. Pathological observation showed that fibroblasts of the filtration pathway had less, but more sparse scar tissues than control group, but inflammatory infiltration was observed in all groups. The cavity of different sizes and shapes were detected in filtration pathway of control group, which was replaced by fibrous tissue hyperplasia, with a large number of fibroblasts. Immunohistochemical results showed that the expression of PDGF was significantly less in fresh amniotic membrane and preserved amniotic membrane groups compared with the control group, and the PDGF expression was less in fresh amniotic membrane group than the preserved amniotic membrane group. Fresh and preserved amniotic membrane can improve the filtering bleb function, reduce scar formation, and maintain the patency of filtering pathway. Moreover, the effects of fresh amniotic membrane is better than preserved amniotic membrane.

[Summary] Postoperative cognitive dysfunction ( POCD) is a common central nervous system complication after anesthesia and surgery.The mechanisms of POCD are not clear yet.The article reviewed several potential mechanisms that have been reported. Further researches are needed to identify the pathophysiologic progress of POCD, which have great clinical and economic values.

Objective:To observe therapeutic effect of continuous renal replacement therapy (CRRT ) on different types of cardiorenal syndrome (CRS) .Methods :According to patient′s conclition ,a total of 247 CRS patients were divided into type 1 group (n=47) ,type 2 group (n=51) ,type 3 group (n=55) ,type 4 group (n=49) and type 5 group (n=45) .All patients received CRRT ,echocardiography and plasma level of N terminal pro B type natriuretic peptide (NT‐proBNP) detect to evaluate cardiac function status ;the 24h urine volume and endogenous creatinine clearance rate (Ccr) were measured to assess renal function status before and after treatment . Results:Compared with before treatment ,on one week after CRRT ,LVEF ,urine volume and Ccr level significantly rose ,NT‐proBNP level significantly reduced ( P<0.05 or <0.01) .Compared with type 4 and 5 group ,there were significant rise in LVEF [ (48.98 ± 1.55)% ,(44.67 ± 1.48)% vs .(55.13 ± 4.27)% ,(53.73 ± 3.52)% ,(57.95 ± 2.89)% ] ,urine volume [ (1118.83 ± 168.09 ) ml , (1125.47 ± 177.28 ) ml vs . (1655.67 ± 198.37 ) ml , (1697.47 ± 171.27 ) ml , (1702.72 ± 179.28) ml] and Ccr level [ (40.11 ± 1.79) ,(41.11 ± 1.39) vs .(52.33 ± 2.49) ,(50.97 ± 2.11) , (51.32 ± 2.01 )] , and significant reduction in NT‐proBNP level [ (3738.19 ± 118.77 ) , (3378.38 ± 121.82 ) vs . (2137.51 ± 123.59) ,(2421.12 ± 121.22) ,(2139.81 ± 147.28)] in type 1 ,2 and 3 group ,P<0.05 all .Conclusion:CRRT is effective on different types of CRS ,but it′s best on type 1~3 than those of type 4~5 , which may be re‐lated to different pathological mechanisms of CRS different types .

To study the absorption and transepithelial transport of six coumarins (umbelliferone, osthole, columbianadin, columbianetin acetate, angelol-A and angelol-B, isolated from the roots of Angelica pubescens f. biserrata) in the human Caco-2 cell monolayer model.

Intact and gossypol-treated spermatozoa from healthy man were labeled withCon A-HRP-G two-step method.Comparative observations of these sperms were doneunder LM,TEM and SEM.Results show that there are gold particles on spermsurface membrane.Their distribution is more dens on plasma membrane of spermhead and middle piece.On the intracellular membrane structures of sperm which plasmamembrane was damaged by gossypol the gold particles also can be seen,especially onthe membranes of acrosome and mitochondria.It was proved that Con A receptorsare present not only on plasma membrane of sperm,but also on the membrane ofacrosome and mitochondrion.The significance of Con A receptors on sperm struc-tures,advantages of Con A-HRP-G two-step labeled method and comparativeobservations under LM,TEM and SEM were discussed.

Objective To evaluate the clinical features, diagnosis, and outcome of the treatment of cytomegalovirus (CMV) retinitis, and the relationship between CMV retinitis and acquired immunodeficiency syndrome (AIDS). Methods A total of 95 eyes of 56 patients with cytomegalovirus retinitis and AIDS were studied. The fundus feature, visual acuity and CD4 + T lymphocyte counts were analyzed and the follow up periods ranged from 2 weeks to 18 months. Results Before the definitive diagnosis of CMV retinitis, the courses of AIDS were 4 to 26 months in all patients. In the initial examination, the granular form of CMV retinal lesion was noted in 55 eyes (57%) in which retinal lesion of 46 eyes was peripheral. The fulminant form of CMV retinitis of 25 eyes (26%) was found in the posterior pole and consisted of densely opaque retinal lesions with blotchy hemorrhage and vasculitis. The overlap between these two presentations was noted in 15 eyes. Papillitis was observed in 7 eyes of CMV retinitis in this series of patients. The visual acuity ranged from finger counting to 0.5. The patients with extensive CMV retinitis or CMV retinitis in the posterior pole got poorer vision. The CD4 + T lymphocyte counts of 30 patients was 0 30 (mean, 15?9/?l), and the survival time ranged from 2 weeks to 18 months (mean, 6.4?3.3 months). The vision was improved and CD4 + T lymphocyte counts was significantly higher in the group treated with ganciclovir, and progression of CMV retinitis occured and the vision decreased in the non treated group. Conclusion CMV retinitis is the most common intraocular complication in patients with AIDS. Diagnosis of CMV retinitis is based on the characteristic of necrotizing retinitis which was typically associated with retinal hemorrhage and vasculitis. Ganciclovir is effective for the treatment of CMV retinitis.