Objective To investigate the effect of treatment time with amiodarone hydrochloride on treatment success rate of ventricular premature beats after radiofrequency ablation. Methods 46 cases of patients with frequent premature ventricular arrhythmia who received RFCA for the first time in department of gardiology,huangyan hospital of wenzhou medical university from February 2013 to February 2015 were selected,and randomly divided into two groups,the control group were treated with amiodarone hydrochloride for one months,the study group were treated with amiodarone hydrochloride for six months.Left ventricular function and structural parameters,heart rate variability were measured in two groups,the main clinical symptom scores,success rate,efficacy and safety were compared. Results Compared with before treatment,two groups of LVESD,LVEDD and PVC decreased (P<0.05),LVEF increased (P<0.05),SDNN,rMSSD,PNN50,LF and HF increased (P<0.05),scores of palpitation,shortness of breath,chest tightness and main symptom score decreased (P<0.05).Compared with the control group,level of PVC in the study group was lower (P<0.05),LVEF was higher(P<0.05),LVESD and LVEDD were had no significant differences,levels of SDNN,rMSSD,PNN50,LF,HF were higher (P<0.05),scores of palpitations,shortness of breath,chest tightness main symptom score were lower (P<0.05).There were no significant differences in the success rate, clinical efficacy and adverse reaction rate between the two groups. Conclusion The time of taking amiodarone after radiofrequency catheter ablation in patients with PVCs,but taking six months and medication compared to one month,can reduce heart palpitations,chest tightness and other symptoms,and improve left ventricular function,with high security.

Objective To compare the efficacy of laparoscopic appendectomy(LA) and open appendectomy(OA) for perforated appendicitis.Methods From January 2002 to December 2005,40 patients with perforated appendicitis were treated at Xuanwu Hospital,20 of them received LA,and the others underwent OA.The clinical data of the patients were retrospectively analyzed.Results The operative time in the LA group was significantly longer than that in the OA group [(75.8?11.6) min vs(54.8?9.5) min,t=6.264,P=0.000)].And the patients in the LA group returned to oral intake earlier than those in the OA group [(1.8?0.5) d vs(2.6?0.5) d,t=-5.060,P=0.000].Moreover,the periods of antibiotic use and hospital stay in the LA group were significantly shorter than those in the OA group [(3.8?0.7) d vs(6.3?1.2) d,t=-8.048,P=0.000;and(5.8?1.1) d vs(11.6?1.6) d,t=-13.359,P=0.000].Although 3 patients had incision infection in the OA group,while none of the LA group had such a complication,no significant difference was detected in the complication rate between the two groups(Fisher's exact test,P=0.115).Conclusions Laparoscopic appendectomy is superior to open surgery for perforated appendicitis because of its advantages of quick recovery,short hospitalization,less antibiotic use,and minimal invasion.LA is a safe,effective,and feasible procedure for perforated appendicitis.

Based on the structure of 5-fluoroindol-2-one and fragments from thirteen multi-target tyrosine kinase inhibitors which have been marketed or in the phase of clinical research, eleven 3-aromatic Shiff base-5-fluoroindol-2-one derivatives were designed and synthesized. Their structures were identified by 1H NMR, MS and elemental analysis. In vitro antitumor bioactivities evaluation was done by MTT method. It was shown that most of synthesized compounds had antitumor activities and compounds 1b, 1g, 1i and 1h were better than or equal to the antitumor activity of positive control.

Objective To compare the effect and safety of enteral and parenteral nutritional support for gastric cancer patients undergoing laparoscopic radical gastrectomy(LRG). Methods Sixty gastric cancer patients received nutritional support after LRG at The Third Affiliated Hospital of Sun Yat-sen University from December 2007 to April 2010. All patients were randomly divided into the enteral nutrition(EN) group (n = 30)and parenteral nutrition (PN) group (n = 30) according to the random number table. Anthropometry, nutritional indexes, complications and expenses of the two groups were compared after treatment. All data were analysed by using the t test and chi-square test. Results Body mass index, triceps skin fold, mid-upper arm muscle circumference, hemoglobin levels, transferrin levels, and albumin levels were ( 16.9 ± 2.4) kg/m2, ( 10.6 ± 2.5 ) mm,(24.2 ±2.5) cm, (106 ± 15) g/L, (2.2 ±0.4) g/L and (39 ±3) g/Lin the EN group, and they were (16.6 ±2.1) kg/m2, (9.2 ± 1.3) mm, (24.0 ±3.4) cm, (102 ± 18) g/L, (2.0 ±0.4) g/L and (38 ±3) g/L in the PN group, respectively, with no significant differences between the two groups (t =0. 52, 1.72, 0.05, 0.93, 1.94,1.29, P ＞ 0.05). Prealbumin levels, nitrogen balance, time of first flatus, and daily expenses in the EN group were (0.30 ±0.10) g/L,0.8 ±0.3, (29 ± 10) hours and (210 ±30) yuan, while they were (0.25 ±0.09) g/L,0. 4 ± 0.2, (38±6) hours and ( 700 ± 50) yuan in the PN group, respectively, with a significant difference between the two groups ( t = 2. 03, 6. 08, 2. 25, 10. 38, P ＜ 0.05 ). One patient had dysbacteriosis, two were glycometabolic and two had a hepatic disorder in the EN group, while the corresponding numbers in the PN group were 9, 12 and 15 patients, respectively, with a significant difference between the two groups ( x2 =7.68, 9.32,13.87, P ＜ 0.05). Conclusions Nutritional support can promote the recovery of gastric cancer patients undergoing LRG. The efficacy of EN is superior to that of PN, and EN is the method of choice for nutritional support.

BACKGROUND:Alveolar bone remodeling and sustained absorption due to tooth extraction seriously affect the implanting conditions and morphology of hard and soft tissue in implant zone. OBJECTIVE:To evaluate the effect of nano-hydroxyapatite/polycaprolactone electrospinning scaffolds to improve the osteogenic effect of bone defects around immediate implants. METHODS:Tissue-engineered bone was prepared by combining canine bone marrow mesenchymal stem cels with nano-hydroxyapatite/polycaprolactone electrospinning scaffold. Bilateral mandibular second premolars from six dogs were extracted mandibular second premolar, and an immediate implant was placed in the mesial fossa of the mandibular second premolar. Three-wal bone defects was made buccaly using titanium nails, then tissue-engineered bone and Bio-Oss bone powders were implanted bilateraly covered by colagen membranes (Bio-Gide). Imageology examination was performed to measure bone gray levels immediately, 4, 8, 12 weeks after surgery. After 12 weeks, the mandible was removed completely, toluidine blue staining was used for observation of microstructure, new bone formation, bone morphology and implant osseointegration. RESULTS AND CONCLUSION: Between the two groups, there was no difference in bone mineral density at each time point after surgery, indicating that the effects of the two materials to promote bone regeneration process are basicaly the same. After implantation, the dense lamelar bone formed in the bone defect region of tissue-engineered bone group, mature bone cels, Haversian canal, and implant osseointegration were visible. While, in the Bio-Oss group, the lamelar bone was dense, a smal amount of Bio-Oss particles distributed within new bone tissues, fewer bone cels were found, a part of Haversian canal was shown to have blood capilaries, and new bone was in close conjunction with the implant. These findings indicate that the nano-hydroxyapatite/polycaprolactone electrospinning scaffold combined with bone marrow mesenchymal stem cels and Bio-Gide colagen membrane can promote the regeneration of alveolar bone around the implant.

Objective:To compare the postoperative neck pain, discomfort and swallowing difficulty in patients with papillary thyroid cancer (PTC) after conventional open thyroidectomy (COT) and endoscopic thyroidectomy using the gasless unilateral axillary approach (ET-UA) .Methods:The study included 117 female patients with PTC who underwent unilateral thyroid lobectomy plus central neck dissection using COT ( n=68) or ET-UA ( n=48) performed by the same experienced surgeon. Subjective neck pain, discomfort and swallowing alterations were assessed by questionnaire 3 day and 6 months postoperatively. Surgical scar and cosmetic satisfaction evaluation were implemented 6 months postoperatively. SPSS 20.0 was used for statistical analysis, the rate or composition ratio was compared by the χ2 test or the exact probability method, and the significance test of the difference in sample means was tested by analysis of variance. Results:Three days after surgery, the neck pain scores of COT group and ET-UA group were (2.13±1.07) and (2.31±1.07) ( P=0.368) ; the neck injury index was (5.13±3.02) and (5.31±3.00) ( P=0.748) ; the dysphagia index was 5 (0.49±3.47) and (3.77±2.96) ( P=0.006) . At 6 months postoperatively, the neck pain scores in COT group and ET-UA group group were (0.52±0.61) and (0.60±0.74) ( P=0.510) ; the neck injury index was (2.10±1.71) and (2.38±2.35) ( P=0.467) ; the dysphagia index was (2.68±2.36) and (1.81±1.83) ( P=0.034) , respectively. Conclusion:Our preliminary study shows that there is no significant differences in postoperative neck pain or discomfort between COT groups and ET-UA group, whereas the impact of ET-UA on swallow function is relatively small than COT.

Objective To compare the clinical efficacy of primary closure versus T-tube drainage after laparoscopic common bile duct exploration in acute cholangitis cases.Methods The clinical data of 100 patients with acute cholangitis undergoing laparoscopic common bile duct exploration from January 2012 to December 2014 were reviewed.54patients received primary closure of the common bile duct and 46 patients were subjected to T-tube drainage after choledochotomy.Results One hundred patients underwent the surgery successfully.Compared with the T-tube group,the operation time(96.72 min vs 123.00 min,P =0.001),intraoperative blood loss(27.13 ml vs 38.48 ml,P =0.009),postoperative gastrointestinal function recovery time(1.57 d vs 2.33 d,P=0.003) and postoperative hospital stay(6.19 d vs 9.20 d,P=0.000) were significantly less in the primary closure group.There were no statistical differences in the incidence of postoperative drainage (309.22 ml vs 212.46 ml,P =0.070),drainage time (3.96 d vs 4.02 d,P =0.875),incidence of bile leakage(9.3％ vs 0,P =0.060) and postoperative bleeding rate(5.1％ vs 2.2％,P =0.622) between these two groups.Conclusion Laparoscopic common bile duct exploration with primary closure of the common bile duct is an effective and safe procedure in acute cholangitis cases compared with T-tube drainage.

Objective To explore the characteristics of intestinal Microbiota in T2DM patients by two molecular fingerprint technologies,and investigate the correlation of intestinal microbiota and T2DM,and evaluate the application value of two fin-gerprint technologies.Methods Fecal samples of 8 healthy groups and 7 diabetes patients were collected.Then the total DNA of gut microbiota was extracted.Through the analysis of products by two molecular fingerprints of ERIC-PCR and DGGE-PCR,ecological characteristics of diversity and similarity of gut microbiota were obtained in healthy groups and dia-betes patients.Results Compared to healthy groups,the number of bands and Shannon-Wiener index of gut microbiota in di-abetes patients was decreased but no statistical significance.The similarity in patients group was declining(P <0.05),and the construction of gut microbiota was inclined to differ.Two fingerprint technologies of ERIC and DGGE could directly re-flect the diversity of gut microbiota and were the modern molecular biological techniques without depending on cultivation. ERIC was simple and convenient,had a better reflection of microbial diversity,but gel band cutting and regarded asa proper approach with higher diffraction efficiency and excellent repetition to studysequencing couldn’t be performed since there were more influencing factors on the experiment.DGGE could better reflect the ecological characteristics such as microbial diversity and similarity,and selecting bands,gel band cutting and sequencing could be done.Conclusion The composition and construction of gut microbiota in diabetes patients were changed,which suggests the occurrence of the disease had the correlation with gut microbiota.ERIC and DGGE is regarded as a proper approach with higher diffraction efficiency and ex-cellent repetition to study intestinal microbiota,but also gel band cutting,sequencing,bacteria identification can be performed by DGGE,both can be used in combination.

Objective: To determine the HIV infection of a 13-year-old leukemia patient Wei using molecular tracing technique. Methods: Three blood samples were collected from the persons who were associated with HIV positive blood donation member Lang. The viral load was tested and pol gene was sequenced and analyzed. At the same time using HyPhy2.2.4 and Cytoscape 3.6.1 to establish the molecular network with these 3 samples sequences and other HIV subtypes sequences obtained from Luzhou. Results: The HIV-1 viral load test result of the three patients were: Lang 933 CPS /ml (treated, blood donor), Wei (blood recipitent) 89 813 CPS /ml, Deng (blood recipitent) 85 158 CPS /ml. The subtype of HIV-1 of these three samples were all recombinant HIV CRF01_AE, and the pol gene similarity was 98.8% (Lang and Wei), 99.7% (Lang and Deng), and 99.1% (Wei and Deng), respectively. The gene sequences of the three samples were linked into clusters (the gene distance was less than 0.004). Conclusions The patient Wei with leukemia was infected with HIV-1 due to blood transfusion during the seroconversion period, and the three patients were more likely to be infected with the same HIV-1 strain. It is necessary to popularize the use of high-sensitivity nucleic acid detection method in blood collection and supply institutions, which can effectively improve the safety of blood use.

OBJECTIVETo determine the effect of pneumoperitoneum on liver indocyanine green (ICG) metabolism and the hepatic blood flow in normal and cirrhotic rats.

METHODSThirty male Wistar rats were randomized into five groups: normal anaesthesia group, normal laparotomy group, normal pneumoperitoneum group, cirrhosis + anaesthesia group, and cirrhosis + pneumoperitoneum group. Liver cirrhosis was induced in two groups by injecting carbon tetrachloride subcutaneously plus drinking 5% alcohol. ICG clearance tests were performed in all the rats.

RESULTSThe ICG level in the normal laparotomy group (0.662 micro g/ml) was higher than that in the normal anesthesia group (0.645 micro g/ml), but the difference was not significant (P > 0,05). The ICG level in the normal pneumoperitoneum group (0.967 micro g/ml) was significantly higher than that in the normal anesthesia and normal laparotomy groups (P < 0.05). The ICG levels in two cirrhotic groups were significantly higher than those in the other three groups (P < 0.05). The ICG level in the cirrhosis + pneumoperitoneum (1.348 micro g/ml) was significantly higher than that in the cirrhosis + anesthesia group (1.198 micro g/ml) (P < 0.05).

CONCLUSIONSDuring laparoscopic surgery, pneumoperitoneum could decrease the liver ICG clearance rate and the hepatic blood flow, which are of clinical significance in determining the state of liver cirrhotic.

Animals ; Disease Models, Animal ; Indocyanine Green ; metabolism ; Liver Circulation ; Liver Cirrhosis, Experimental ; physiopathology ; Male ; Pneumoperitoneum, Artificial ; Rats ; Rats, Wistar