Objective To investigate use of sedative and hypnotics agents in urban community residents aged 60 years and over in Shanghai. Methods A cross-sectional study on use of sedative and hypnotics agents was conducted in 2248 residents aged 60 years and over in Jing' an community of Shanghai during July to October 2005 with questionnaire. Results Overall prevalence of use of sedative and hypnotics agents was 15.8% (355/2248), 7.3% (165/2248) for consecutive use and 6.2% (140/2248) for long-term consecutive use, respectively, which increased with age (P < 0.05). Prevalence of use of sedative and hypnotics agents, whatever consecutive use or long-term consecutive use was significantly higher in women than that in men [18.7 % (224/1303) vs. 11.7% (111/945), P<0.01; 8.3 % (108/1303) vs. 6.0% (57/945), P < 0.05 ; or 7. 3% (95/1303) vs. 4. 8% (45/945), P < 0.05]. Use of benzodiazepinos accounted for 90. 0 % (126/140) in those with long-term consecutive use. About 93.8 % (333/355) of sedative and hypnotic agents were prescribed by medical doctors. Conclusiong In general, prevalence of sedative and hypnotics agents use in the aged residents of community is higher, mainly with benzodiazepines. There are a few problems about their unreasonable use in women and attention should be paid to it.

Objective To study the CT features of peripheral lung cancer with thin-walled cavity, and to improve the understanding and diagnostic accuracy of this type of lung cancer. Methods Thirty-one patients (male:18, female:13, average age(56 ± 12)years old) with surgically proven peripheral lung cancer with thin-walled cavity were studied retrospectively. There were 28 cases of adenocarcinoma, 2 cases of squamous cell carcinoma and 1 case of sarcomatoid carcinoma. All patients had MSCT examination, and the CT features of the solid lesion and thin-walled cavity of the lung cancer were analyzed. The relationship between solid lesion and thin-walled cavity location, cavity wall thickness and uniformity, wall nodules, vascularstructures close to the outer wall, septum or air-fluid level inside the cavity, and dynamic changes of the lesions were all evaluated. Results (1) Solid lesion:mostly located in both upper and middle lobes of the lung in 21cases (67.7%). Lobulation, speculation and vessel convergence sign were observed in 27 cases (87.1%), 21 cases(67.7% )and 16 cases(51.6%) respectively. Twenty cases showed as ground glass nodule (GGN) (64.5%), with pure GGN in 11 cases(35.5%). (2) Cavitary lesion: The average diameter was (2.7 ± 1.3) cm, the cavity located in the periphery of the solid lesions in 26 cases (83.9%),and in 20 cases (64.5%) located in the lateral or superior and inferior lateral aspect of the solid lesion;The cavity wall was uniform in17 cases (54.8%) and the wall thickness<2 mm were seen in 16 cases (51.6%), 2-3 mm were observed in 10 cases (32.3%);Wall nodules were seen in five cases (16.1%);Blood vessels adjacent to outer wall were found in 12 cases (38.7%);There was no air-fluid level in the cavity in all the cases;But septum with uneven thickness or small vessels were seen in the cavity in 27 cases (87.1%). Conclusions The majority of peripheral lung cancer with thin-walled cavity was adenocarcinoma, characteristic CT features of thin-walled cavitary lesions may be helpful in the diagnosis of this type of lung cancer.

Objective This study was designed to investigate influence of resveratrol on serum lipid and antioxidant enzyme lev‐els in atherosclerotic rabbit model ,and to explore its influence on NF‐κB and MAPKs signal pathway .Methods Rabbits were as‐signed to five groups :control (group A) ,high fat diet group (group B) ,resveratrol group (group C ,D and E) .The contents of lip‐ids level (TC ,TG ,LDL‐C ,HDL‐C) and antioxidant enzyme (GSH ,GSH‐PX ,GST ,γ‐GCS ,CAT ,SOD ,MDA) levels in the serum were measured respectively and the difference was studied .Phosphorylation levels of MAPKs cascades ,NF‐κB were measured by Western blot .Results Compared with group A ,group B had elevated levels of blood lipids ,antioxidant enzymes were on the de‐cline ,the MDA content increased ,MAPKs and the NF‐κB protein phosphorylation enhanced .C ,D ,E group can reduce levels of blood lipids ,increases HDL‐C ,improve antioxidant enzyme activity and reduce MDA content ,inhibit MAPKs ,NF‐κB protein phos‐phorylation .Conclusion Resveratrol could reduce the atherosclerotic rabbit blood lipid levels ,increase antioxidant enzyme activity , reduce the MDA level and this effect is likely to inhibit NF‐κB and MAPKs signaling pathway activation .

OBJECTIVETo investigate the surgical procedures and prognosis for neck recurrence or residue of nasopharyngeal carcinoma(NPC) after primary radiotherapy.

METHODSA total of 153 cases with neck recurrence or residue after radiotherapy in NPC who received salvage neck surgery between January 2001 and December 2011 were retrospectively analyzed. There were rN1 109 cases, rN2 17 cases and rN3 27 cases. Of them 17 cases received bilateral neck dissection(ND) simultaneously. The surgical procedures included the modified radical neck dissection (MRND) in 66 cases, radical neck dissection (RND) in 48 cases, selective neck dissection(SND) in 28 cases, enlarged radical neck dissection (ERND) in 16 cases, local excision in 9 cases, and parotidectomy in 3 cases. The Kaplan-Meier method was used to calculate survival curves, and the differences between groups were calculated by χ(2) tests.

RESULTSThere were 20 cases (13.1%) with lymph node(LN) metastasis in level I and 7 cases (4.6%) with parotid gland LN metastasis. The 3-year and 5-year overall survival rates were 57.2% and 40.6% respectively, and the median survival time was 49 months. Cox regression analysis revealed that rN staging, size of LN and age were the main prognosis factors for survival.

CONCLUSIONSSalvage surgery was effective for neck recurrence or residue of NPC after primary treatment, and MRND and SND are reasonable options so as to improve functionality. Dissection of LN in level I and parotid gland should be selective. Patients with stage rN3 or LN > 6 cm or age > 50 years had poor prognosis.

Adolescent ; Adult ; Aged ; Carcinoma ; Carcinoma, Squamous Cell ; pathology ; radiotherapy ; surgery ; Female ; Humans ; Lymph Nodes ; pathology ; Male ; Middle Aged ; Nasopharyngeal Neoplasms ; pathology ; radiotherapy ; surgery ; Neck ; Neoplasm Recurrence, Local ; surgery ; Retrospective Studies ; Salvage Therapy ; Young Adult

OBJECTIVETo analyze the clinical features and prognosis of radiotherapy associated sarcoma (RAS) in the head and neck following radiotherapy for nasopharyngeal carcinoma (NPC).

METHODSThe clinicopathologic data, diagnosis, treatment and follow-up results of 11 patients with RAS diagnosed between January 1995 and December 2011 at Zhejiang Cancer Hospital were analyzed retrospectively. Among these patients, 6 were males and 5 were females. Patients' ages ranged from 33 to 66 years (median 50 years). The latency period for development of the RAS was between 3 years and 23 years (median 7 years) after irradiation. Overall survival rate was calculated using the Kaplan-Meier method and Log rank test.

RESULTSAll cases underwent surgery, of them 6 casesachieved radical resection3 cases left with microscopic positive resection margins and 2 caseshad palliative surgery. Among 11 patients, 4 had re-surgery after recurrence, including 1 case had repeated surgeries followed by chemotherapy and radioactive seed implantation. Follow-up time ranged from 2 to 102 months, andeight patients died The 2-year, 3-year and 5-year cumulative survival rateswere 45.5%, 30.3% and 15.2%, respectively. The median survival time was 15 months. Surgical resection with clear margins achieved significantly better prognosis (P = 0.04).

CONCLUSIONSThe incidence of RAS after radiation of NPC is generally low, but the treatment of RAS is very difficult, with poor prognosis.

Brachytherapy ; Carcinoma ; Female ; Follow-Up Studies ; Humans ; Male ; Nasopharyngeal Neoplasms ; radiotherapy ; Neck ; Neoplasm Recurrence, Local ; diagnosis ; radiotherapy ; Prognosis ; Retrospective Studies ; Sarcoma ; diagnosis ; radiotherapy ; Survival Rate

Objective:To evaluate the efficacy of somatosensory evoked potential (SEP) monitoring for prevention of deep venous thrombosis (DVT) in lower extremity of patients undergoing spinal surgery.Methods:A total of 120 patients of both sexes, aged 40-70 yr, of American Society of Anesthesiologists physical status ⅠorⅡ, without impairment of coagulation function, undergoing posterior lumbar interbody fusion, were selected and divided into 3 groups ( n=40 each) using the random number table method and envelope method: basic preventive measure group (group A), compression stocking group (group B) and SEP monitoring group (group C). In group B, elastic stockings were worn at 1 h before surgery.SEP monitoring was performed during surgery, and the intensity of current stimulation was 25 mA in group C. The flow velocity of popliteal vein in both lower extremities was measured using color Doppler ultrasound apparatus during surgery.Venous blood samples were taken to measure plasma D-dimer concentrations at 1 day before surgery, at the end of surgery and at 24 h after surgery.The DVT developed in lower extremities was diagnosed by ultrasound method during surgery and within 24 h after surgery. Results:Compared with A and B groups, the blood flow velocity of popliteal vein was significantly increased, and the plasma D-dimer concentration and incidence of DVT developed in lower extremity during surgery were decreased in group C ( P<0.05). Conclusion:SEP monitoring can effectively prevent the occurrence of DVT in lower extremity while it is used as an electrophysiological monitoring of the spinal cord in patients undergoing spinal surgery.