Publications (19)32.95 Total impact
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Article: Risk Factors for Early Postoperative Complications After Pneumonectomy for Benign Lung Disease.
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ABSTRACT: BACKGROUND: Pneumonectomy is associated with a significant incidence of postoperative complications. The purpose of this study is to identify the risk factors associated with adverse outcomes. METHODS: One hundred thirty-six patients with benign lung disease who underwent pneumonectomy were included in this retrospective analysis. Postoperative complications were observed during the 30-day follow-up. Univariate and multivariate analysis was performed to investigate the risk factors of pneumonectomy among the patients. RESULTS: Postoperative complications were observed in 33 patients (24.26%). The rate of bronchopleural fistula was 6.1% (9 of 136). Five perioperative deaths (3.68%) were noted. Univariate analysis and multivariate analysis indicated that type of disease (hazard ratio [HR], 3.158; 95% confidence interval [CI], 1.248 to 7.992; p = 0.015) and operation duration (HR, 2.508; 95% CI, 1.035 to 6.080; p = 0.042) were independent risk factors of postoperative complications, and that type of disease (HR, 6.409; 95% CI, 1.669 to 6.021; p = 0.011) and pulmonary function (HR, 6.159; 95% CI, 0.018 to 0.625; p = 0.013) were independent risk factors of bronchopleural fistula for patients with benign lung disease after pneumonectomy. CONCLUSIONS: A high incidence of complications was reported among patients with benign lung disease after pneumonectomy. The type of disease and operation duration were the best independent predictors of morbidity after this surgery. With careful patient selection and operative technique, morbidity and mortality rates could be comparable to those for pneumonectomy in cancer patients. Pneumonectomy is still a satisfactory treatment method for benign lung disease.The Annals of thoracic surgery 05/2013; · 3.74 Impact Factor -
Article: Combination of upflow anaerobic sludge blanket (UASB) and membrane bioreactor (MBR) for berberine reduction from wastewater and the effects of berberine on bacterial community dynamics.
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ABSTRACT: Berberine is a broad-spectrum antibiotic extensively used in personal medication. The production of berberine results in the generation of wastewater containing concentrated residual berberine. However, few related studies up to date focus on berberine removal from wastewaters. In this study, a lab-scale upflow anaerobic sludge blanket (UASB)-membrane bioreactor (MBR) process was developed for berberine removal from synthetic wastewater. The performance of the UASB-MBR system on berberine, COD and NH(4)(+)N removal was investigated at different berberine loadings. And the effects of berberine on bacterial communities were evaluated using polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE). Results showed that, as the increase of berberine loadings, UASB performance was affected remarkably, whereas, efficient and stable performance of MBR ensured the overall removal rates of berberine, COD and NH(4)(+)N consistently reached up to 99%, 98% and 98%, respectively. Significant shifts of bacterial community structures were detected in both UASB and MBR, especially in the initial operations. Along with the increase of berberine loadings, high antibiotic resisting species and some functional species, i.e. Acinetobacter sp., Clostridium sp., Propionibacterium sp., and Sphingomonas sp. in UASB, as well as Sphingomonas sp., Methylocystis sp., Hydrogenophaga sp. and Flavobacterium sp. in MBR were enriched in succession.Journal of hazardous materials 12/2012; 246-247C:34-43. · 4.14 Impact Factor -
Article: Phosphorus recovery from fosfomycin pharmaceutical wastewater by wet air oxidation and phosphate crystallization.
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ABSTRACT: Fosfomycin pharmaceutical wastewater contains highly concentrated and refractory antibiotic organic phosphorus (OP) compounds. Wet air oxidation (WAO)-phosphate crystallization process was developed and applied to fosfomycin pharmaceutical wastewater pretreatment and phosphorus recovery. Firstly, WAO was used to transform concentrated and refractory OP substances into inorganic phosphate (IP). At 200°C, 1.0MPa and pH 11.2, 99% total OP (TOP) was transformed into IP and 58% COD was reduced. Subsequently, the WAO effluent was subjected to phosphate crystallization process for phosphorus recovery. At Ca/P molar ratio 2.0:1.0 or Mg/N/P molar ratio 1.1:1.0:1.0, 99.9% phosphate removal and recovery were obtained and the recovered products were proven to be hydroxyapatite and struvite, respectively. After WAO-phosphate crystallization, the BOD/COD ratio of the wastewater increased from 0 to more than 0.5, which was suitable for biological treatment. The WAO-phosphate crystallization process was proven to be an effective method for phosphorus recovery and for fosfomycin pharmaceutical wastewater pretreatment.Chemosphere 06/2011; 84(2):241-6. · 3.21 Impact Factor -
Article: [Adult tracheomalacia].
Zhonghua jie he he hu xi za zhi = Zhonghua jiehe he huxi zazhi = Chinese journal of tuberculosis and respiratory diseases 05/2011; 34(5):380-2. -
Article: Aspiration via congenital broncho-esophageal fistula after lobectomy.
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ABSTRACT: Aspiration via a congenital broncho-esophageal fistula in an adult thoracotomy patient has not been previously reported. Repeated aspiration and subsequent respiratory failure if the fistula is not recognized could be life-threatening in these postoperative patients. We describe one such critical case, in which a broncho-esophageal fistula was discovered weeks after aspiration and the onset of respiratory failure after left lower lobectomy. This unusual case suggests that repeated localized pulmonary infections can indicate a broncho-esophageal fistula and that further investigations should be performed, including detailed history.Respiratory care 04/2011; 56(8):1195-7. · 2.01 Impact Factor -
Conference Proceeding: Adsorption Characteristics of Cu2+ onto Zeolite from Pharmaceutical Industrial Wastewater
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ABSTRACT: The adsorption of Cu<sup>2+</sup> from pharmaceutical wastewater by zeolite was studied in a batch adsorption system. Factors influencing copper adsorption such as pH (1-5), adsorbent dosage (5-50 g/L) and contact time (20-600 min) were investigated. The equilibrium of adsorption process was established in about 480 min, while pH was 5 and adsorbent dosage was 30 g/L. After the adsorption equilibrium was achieved, the removal efficiency of Cu<sup>2+</sup> was above 99%. A comparison of the kinetic models on the overall adsorption rate showed that the adsorption system was best described by the pseudo second-order kinetics. The adsorption equilibrium data fit best with the Langmuir isotherm.Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM), 2011 International Conference on; 03/2011 -
Article: Nutrients removal and recovery from anaerobically digested swine wastewater by struvite crystallization without chemical additions.
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ABSTRACT: Anaerobically digested swine wastewater contains high concentrations of phosphorus (P) and nitrogen (N). A pilot-scale experiment was carried out for nutrients removal and recovery from anaerobically digested swine wastewater by struvite crystallization. In the pilot plant, a sequencing batch reactor (SBR) and a continuous-flow reactor with struvite accumulation devices were designed and employed. The wastewater pH value was increased by CO(2) stripping, and the struvite crystallization process was performed without alkali and Mg(2+) additions. Results of the long-term operation of the system showed that, both reactors provided up to 85% P removal and recovery over wide ranges of aeration times (1.0-4.0 h), hydraulic retention times (HRT) (6.0-15.0 h) and temperatures (0-29.5°C) for an extended period of 247 d, in which approximate 30% of P was recovered by the struvite accumulation devices. However, 40-90% of NH(4)(+)-N removed was through air stripping instead of being immobilized in the recovered solids. The recovered products were detected and analyzed by scanning electron microscope (SEM), X-ray diffraction (XRD) and chemical methods, which were proved to be struvite with purity of more than 90%. This work demonstrated the feasibility and effects of nutrients removal and recovery from anaerobically digested swine wastewater by struvite crystallization without chemical additions.Journal of hazardous materials 03/2011; 190(1-3):140-9. · 4.14 Impact Factor -
Article: Performance of the Tidal-Flow Wetland for Wastewater Treatment in Low Temperature Seasons
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ABSTRACT: The tidal-flow constructed wetland is a new type of constructed wetland proposed by the University of Birmingham, U.K. The principal of the wetland takes advantage of the rhythmical movement of wastewater and air which accelerates the alternation of aerobic and anaerobic to realize and enhance pollutant removal. This study focused on two aspects, the different operation performances for treating pollutants at a low temperature in winter between tidal-flow and traditional continuous-flow constructed wetlands, and the influences of treatment efficiency under different operating circumstances. The results showed that, under 0.2m3/m2/dhydraulic load, the removal rates of the three-cycles/d tidal flow constructed wetland for NH4+-N, COD and PO43--P could reach 48.57%, 68.96% and 29.02% respectively, which were about 30%, 20% and 20% higher than these in continuous flow wetlands, correspondingly.Computer Distributed Control and Intelligent Environmental Monitoring, International Conference on. 02/2011; -
Article: [Treatment of delayed inhaled bronchial foreign bodies by pulmonary resection: 17 cases reports].
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ABSTRACT: To investigate and analyze the clinicopathological features and choice of treatment for delayed inhaled bronchial foreign bodies. A retrospective review is presented of patients with delayed inhaled bronchial foreign bodies treated by pulmonary resection between January 1980 and June 2010. There were 17 patients (12 male and 5 female). Mean age was 36 years (ranging 10 to 66 years). The mean interval of onset was 2 years (ranging 3 months to 8 years). Confirmed diagnosis before surgery in 8 cases and 9 cases were misdiagnosed as other diseases. Surgical procedures included right lower lobectomy in 4 cases, right middle lobectomy in 3 cases, right lower and middle lobectomy in 1 case, right lobe lobectomy and rid resection drainage in 1 case, right lobe lobectomy and pleurectomy in 1 case, video-assisted right lobe partial resection in 1 case, left pneumonectomy in 4 cases, left lower lobectomy in 1 cases and left upper lobectomy in 1 cases. One case died of pulmonary infection and 2 cases complicated of BPF after operation. Foreign bodies were localized in the right bronchial tree in 11 cases, the left in 6 cases. The majority of the foreign bodies were vegetable origin. The diagnosis rate of delayed inhaled bronchial foreign bodies should be improved in order avoiding of pulmonary resection. It is necessary to perform pulmonary resection timely if the pulmonary infection is evident for fear that the infection progress into severe infection.Zhonghua wai ke za zhi [Chinese journal of surgery] 12/2010; 48(24):1868-70. -
Article: Bacterial community structure in geographically distributed biological wastewater treatment reactors.
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ABSTRACT: Current knowledge of the microbial communities within biological wastewater treatment reactors is incomplete due to limitations of traditional culture-based techniques and despite the emergence of recently applied molecular techniques. Here we demonstrate the application of high-density microarrays targeting universal 16S rRNA genes to evaluate microbial community composition in five biological wastewater treatment reactors in China and the United States. Results suggest a surprisingly consistent composition of microbial community structure among all five reactors. All investigated communities contained a core of bacterial phyla (53-82% of 2119 taxa identified) with almost identical compositions (as determined by colinearity analysis). These core species were distributed widely in terms of abundance but their proportions were virtually the same in all samples. Proteobacteria was the largest phylum and Firmicutes, Actinobacteria, Bacteroidetes were the subdominant phyla. The diversity among the samples can be attributed solely to a group of operational taxonomic units (OTUs) that were detected only in specific samples. Typically, these organisms ranked somewhat lower in terms of abundance but a few were present is much higher proportions.Environmental Science & Technology 10/2010; 44(19):7391-6. · 4.80 Impact Factor -
Article: [Pneumo-peritoneum helico-CT imaging in post-operative peritoneal adhesion].
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ABSTRACT: To discuss the diagnostic value of pneumoperitoneum helico-CT imaging (PHCT) in cases of post-operative peritoneal adhesion (POPA). We retrospectively analyzed the PHCT scan pictures from 32 consecutive patients with chronic abdominal pain or recurrent mechanical intestinal obstruction after abdominal operation. In a normal peritoneal cavity without adhesion, an air distended dome-like space would be demonstrated with the abdominal organs arranged smoothly on the bottom of the shadow. Any additional shadow appearing in the dome-space would suggest adhesion or something abnormal. Positive findings of peritoneal adhesion were found in 30 of the 32 patients (93.75%). A spot adhesion at the abdominal wall making a kinking of intestine usually showed a cuneiform bulging shadow pointed to the roof of the dome-space. Organs involved in the adhesion may be single or multiple, including the liver, stomach, small intestine, colon, uterus, and omentum. In all the 32 patients, PHCT diagnosis was confirmed by the subsequent laparoscopy treatment. PHCT imaging is valuable in making a definite diagnosis of POPA, particularly before a blind laparoscopic exploration. It is a replacement for laparoscopy but much simpler, and may offer a valuable help in dealing with the difficult cases of suspected POPA. A negative imaging is sometimes very important to an undetermined postoperative chronic abdominal pain.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences 05/2010; 35(5):487-94. -
Article: The effect of organic loading on bacterial community composition of membrane biofilms in a submerged polyvinyl chloride membrane bioreactor.
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ABSTRACT: The effect of organic loading on bacterial community composition of membrane biofilms was investigated using a submerged polyvinyl chloride membrane bioreactor. The low and high loadings were set at 0.33 and 0.52 gCOD/(gVSSd), respectively. The results showed that membrane fouling occurred earlier and faster under the high loading conditions. Denaturing gradient gel electrophoresis (DGGE) analysis revealed that the similarity of bacterial community in the membrane biofilms between the two loadings was 0.67, higher than that in the mixed liquors (0.52-0.55), which indicated that some specific bacteria were selected preferentially on the membranes. Clone library analysis of the membrane biofilms indicated that Betaproteobacteria and Bacteroidetes under the high loading were 54.72% and 19.81%, respectively. Microarray results further confirmed that the two bacteria were the dominant microorganisms in the high loading biofilm. The severe membrane fouling may be aroused mainly by the enrichment of the two bacteria under the high loading.Bioresource technology 04/2010; 101(17):6601-9. · 4.25 Impact Factor -
Article: [Using high-density universal 16S rRNA microarray in microbial molecular ecology research].
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ABSTRACT: High-density universal 16S rRNA Microarray was used to detect the microbial community in membrane bioreactor (MBR). The results showed MBR had high microbial diversity. 1019 bacteria were detected by Microarray in MBR. Proteobacteria was the predominant phylum. It had 657 OTUs, occupying 64.5% of the total bacteria, gamma Proteobacteria was the main class of Proteobacteria, which occupied 35.8% of Proteobacteria, but the average fluorescence intensity of was not very high. Despite the bacteria diversity of beta Proteobacteria was lower than gamma Proteobacteria. However, it occupied 40% and 36% in the 25 and 50 dominant bacteria according to relative average fluorescence intensity. Clostridia had a relative high concentration when compare the average fluorescence intensity of the whole bacteria in MBR. Some common nitrify bacteria such as Nitrosomonadaceae and Nitrospiraceae were also detected and had high fluorescence intensity in the system. Microarray is a newer molecular method and has some advantages such as real time, high efficiency and exact results. It's very suitable for investigation of microbial diversity in wastewater treatment.Huan jing ke xue= Huanjing kexue / [bian ji, Zhongguo ke xue yuan huan jing ke xue wei yuan hui "Huan jing ke xue" bian ji wei yuan hui.] 12/2009; 30(12):3691-7. -
Article: Complete lobar torsion simulating hemorrhagic shock after left upper lobectomy.
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ABSTRACT: Lung torsion is a rare but serious complication after thoracic operations. We describe an unusual case of left lobar torsion after video-assisted thoracoscopic upper lobectomy. The profound symptom was impending hemorrhagic shock, which masqueraded as postoperative bleeding. The differentials between these 2 entities and treatment options for lung torsion are discussed.Asian cardiovascular & thoracic annals 05/2009; 17(2):191-3. -
Article: Effects of short solids retention time on microbial community in a membrane bioreactor.
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ABSTRACT: Effects of operating lab-scale nitrifying membrane bioreactors (MBR) at short solids retention times (SRT=3, 5 and 10d) were presented with focus on reactor performance and microbial community composition. The process was capable of achieving over 87% removal of ammonia and 95% removal of chemical oxygen demand (COD), almost regardless of SRT. The denaturing gradient gel electrophoresis (DGGE) analysis shown that bacterial communities evolved in time in a similar way at different SRT. The results of clone library analysis indicated that Betaproteobacteria was the dominant bacterial group in all the reactors but there were significant difference of species for different SRT with higher species diversity at longer SRT. Ammonia and COD removal efficiencies were not correlated with the number of bacterial species or their diversity.Bioresource technology 04/2009; 100(14):3489-96. · 4.25 Impact Factor -
Article: Chest wall reconstruction with two types of biodegradable polymer prostheses in dogs.
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ABSTRACT: Currently, the choice of chest wall prosthesis remains a challenging problem for thoracic and reconstructive surgeons. The purpose of this study is to investigate the feasibility of newly developed biodegradable prostheses. Two types of chest wall prostheses made from degradable polymer, collagen coated polydioxanone (CCP) mesh and chitin fiber reinforced polycaprolactone (CFRP) strut, were developed and studied. Adult mongrel dogs were subjected to extensive resection and reconstruction of anterior-lateral chest wall, CCP mesh was used in six dogs, the combination of CCP mesh and CFRP strut was used in four dogs, and polypropylene (PP) mesh in two dogs, as contrast. With good integration with tissue, CCP meshes maintained strength in the chest wall for more than 8 weeks and were completely resorbed within 24 weeks, and satisfactory short-term and long-term chest wall stabilization was achieved. The combined use of CCP mesh with CFRP strut provided a firmer chest wall in the early postoperative course. A mild wound infection developed in one animal with CCP mesh but resolved without sequelae, and no added complications were observed with the additional use of CFRP strut. Our experimental study shows that the CCP mesh and CFRP prosthesis were favorable for chest wall repair. The advantages of biodegradable copolymer give them promise as an excellent addition to the available reconstructive techniques currently in use.European journal of cardio-thoracic surgery: official journal of the European Association for Cardio-thoracic Surgery 09/2008; 34(4):870-4. · 2.40 Impact Factor -
Article: [The degradation performance of chitin short fiber reinforced polycaprolactone composite in vitro].
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ABSTRACT: We have investigated the degradation of pure Polycaprolactone (PurePCL) and chitin short fiber reinforced Polycaprolactone composite (SFRP) in vitro in order to provide useful scientific basis for clinical application. PurePCL, SFRP and DL-PLA were immersed in 0.9% NaCL solution for periods of 2, 4, 8, 12, 16 and 24 weeks. Then pH values in immersing solution, weight loss and mechanical properties of tested materials were measured and SEM was used to study the change of the materials in the process of degradation. It was shown that the initial strength of SFRP was much higher than that of PurePCL. In the process of degradation of SFRP, the pH values maintained weak acid or remianed neutral. The rate of weight loss of SFRP was faster than that of PurePCL, but slower than that of DL-PLA. The strength and modulus of SFRP did not change much in 24 weeks, compared with the initial ones. In conclusion, the composites have excellent properties and may be optimal for clinical use in reconstruction of chest wall defects as well as in internal fixation of bone fracture.Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi 07/2007; 24(3):582-5. -
Article: [Preparation and biological evaluation of Chitin short fiber reinforced polycaprolactone composite].
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ABSTRACT: Chitin short fiber reinforced polycaprolactone composite was prepared by melting blending method. The cytotoxicity and biocompatibility of pure polycaprolactone and of chitin short fiber reinforced polycaprolactone composite were investigated in order to provide useful scientific basis for clinical application. The biocompatibility of pure polycaprolactone and that of chitin short fiber reinforced polycaprolactone composite were evaluated by a series of tests, including cytotoxicity test in vitro, acute systemic toxicity test, hemolysis test, pyrogen test and sensitivity test. The results showed that the cytotoxicity scores of the two materials were grade 0 and the growth and proliferation of the cultured cells were not significantly inhibited by the two materials. There were no potential allergic materials in the composites and the maceration extract showed no hemolytic reaction, no acute systemic toxicity and no pyrogen reaction. We conclude that the composites have fine biocompatibility and are safe for clinical use in the reconstruction treatment for chest wall defect.Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi 07/2006; 23(3):565-8. -
Article: [Experimental study of degradable chitin long fiber reinforced polycaprolactone for reconstruction of chest wall defects].
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ABSTRACT: To investigate the application of a novel degradable biomaterial as a chest wall prosthesis and provide valuable scientific basis for clinical application. Preparation of chitin long fiber reinforced polycaprolactone (PCL) by means of melt blending and modeling. Full-thickness chest wall defects of 10 cm x 8 cm was created in 10 dogs and then repaired with long chitin fiber reinforced PCL artificial rib in 8 dogs (tested group) and Marlex mesh in 2 dogs (control group). It was dynamically observed that the situation of the implanted chest wall prosthesis and the progress of the regeneration of the chest wall tissue postoperatively. No operative and perioperative deaths were observed in all experimental dogs. In tested group, slight paradoxical respiration occurred in 2 dogs and could not be seen in 2 weeks. No chest wall subsidence and infection occurred. New bone tissue obviously regenerated around both resection ends of the ribs and integrated tightly with artificial ribs. In control group, there were evidently paradoxical respiration and chest wall subsidence. Marlex mesh folded and was enveloped by fibrous tissue. Degradable chitin long fiber reinforced PCL can provide effective support to chest walls and is a practicable material for chest wall reconstruction.Zhonghua wai ke za zhi [Chinese journal of surgery] 06/2006; 44(10):665-7.
Top co-authors
Top Journals
Institutions
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2010–2011
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Chinese Research Academy of Environmental Sciences
Beijing, Beijing Shi, China
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2009–2010
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Tongji University
- College of Environmental Science and Engineering
Shanghai, Shanghai Shi, China
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2008
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The Second Military Medical University
Shanghai, Shanghai Shi, China
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2006–2007
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Second Military Medical University, Shanghai
Shanghai, Shanghai Shi, China
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