1.Establishment of Oncomelania hupensis snail database based on smartphone and Google Earth
Weichun WANG ; Ti ZHAN ; Yingfu ZHU
Chinese Journal of Schistosomiasis Control 2015;(1):79-81
Objective To establish an Oncomelania hupensis snail database based on smartphone and Google Earth. Meth?ods The HEAD GPS software was loaded in the smartphone first. The GPS data of the snails were collected by the smartphone. The original data were exported to the computer with the format of KML/KMZ. Then the data were converted into Excel file for?mat by using some software. Finally the results based on laboratory were filled and the digital snail data were established. The data were converted into KML and then were showed by Google Earth visually. Results The snail data of a 5 hm2?beach along the Yangtze River were collected and the distribution of the snails based on Google Earth was obtained. The database of the snails was built. The query function was implemented about the number of the total snails the living snails and the schistosome infected snails of each survey frame. Conclusion The digital management of the snail data is realized by using the smartphone and Google Earth.
2.A manufacture method of schistosomiasis epidemic maps based on Google Earth
Weichun WANG ; Ti ZHAN ; Yingfu ZHU
Chinese Journal of Schistosomiasis Control 2014;(1):96-98
Objective To make various schistosomiasis epidemic maps based on Google Earth. Methods The various ele-ments for schistosomiasis epidemic maps were marked in the Google Earth platform by adding the place mark,path,polygon, overlay and so on. Results Various schistosomiasis epidemic maps were produced and saved,such as the schistosomiasis epi-demic area map of the city,the map of Oncomelania hupensis snail distribution in the town,and the schematic map of snail envi-ronments. Conclusion The schistosomiasis epidemic maps based on Google Earth are clear and visual. The production process is very simple and easy to learn. It is suitable for the use in the grass-root schistosomiasis control stations.
3.Risk factors of surgical site infection in patients with colorectal cancer
Guangzhao YI ; Suxin LUO ; Xihan WANG ; Ting YU ; Yingfu WANG
Chinese Journal of Infection and Chemotherapy 2015;(1):57-59
Objective To evaluate the incidence of surgical site infection (SSI)in patients with colorectal cancer and identify the risk factors of SSI.Methods A total of 392 patients who underwent colorectal cancer resection at the First Affiliated Hospital of Chongqing Medical University between September 2012 and September 2013 were included and analyzed in terms of the presence of SSI.SSI risk factors were identified by both univariate and multivariate analysis.Results The overall incidence of SSI was 23.0%.Univariate analysis showed that duration of operation above 75 th percentile,colostomy,surgical procedure, type of surgical incision,and American Society of Anesthesiologists (ASA)score were significantly associated with higher risk of SSI (P <0.05).Binary logistic regression suggested that duration of operation above 75 th percentile (P = 0.000,OR =3.017),colostomy (P =0.008,OR=2.642),Contaminated incision (P =0.016,OR=3.311)and laparoscopic surgery (P =0.016,OR=0.523)were significantly different in terms of presence or absence of SSI.Conclusions Duration of operation above 75th percentile,colostomy and contaminated incision are independent risk factors,while laparoscopic surgery is a protective factor for SSI in patients with colorectal cancer.
4.Relationship between changes in gray matter volume in different brain regions in early postoperative period and development of chronic pain after radical mastectomy
Wenyuan YIN ; Ruoxi WANG ; Yi WU ; Yingfu JIAO ; Yan ZHOU ; Weifeng YU
Chinese Journal of Anesthesiology 2019;39(6):707-709
Objective To evaluate the relationship between the changes in gray matter volume ( GMV) in different brain regions in the early postoperative period and the development of chronic pain after radical mastectomy. Methods Forty-four American Society of Anesthesiologists physical status Ⅰ or Ⅱpatients, aged 25-64 yr, scheduled for elective radical mastectomy, were divided into 3 groups according to the numeric rating scale ( NRS) score within 3 months after surgery: severe chronic pain group ( NRS score≥3, group SEP), slight chronic pain group (NRS score=1 or 2, group SLP) and no chronic pain group ( NRS score=0, group NP ) . All the patients underwent whole brain MRI scan within 7 days after surgery. MRI data processing and analysis were carried out using SPM8-based VBM software package and REST 1. 8 software. Results There were 17 cases in group SEP, 10 cases in group SLP and 17 cases in group NP. Compared with group NP, GMV in the right postcentral gyrus was significantly decreased, and GMV in the right superior frontal gyrus was increased in group SEP ( P<0. 01) . Conclusion The changes in GMV in the right postcentral and superior frontal gyrus in the early postoperative period may be related to the development of chronic pain after radical mastectomy.