RESUMEN
Objective By analyzing the epidemic characteristics and related indicators of SARS (2003) and COVID-19(2020), to explore the reasons for the similarities and differences of the two epidemics, so as to provide reference for epidemic prevention and control. Methods The general situation, clinical classification, activity history, contact history, family members’ contact and incidence of the two infectious diseases in Guangzhou were collected and used to analyze the time characteristics, occupational characteristics, age characteristics and other key indicators of the two diseases, including the number of cases, composition ratio (%), mean, median, crude mortality, etc. Results A total of 1 072 cases of SARS (2003) were included in the study. 353 of which were severe cases with the incidence of 30.13%. 43 cases of death were reported with a mortality rate of 4.01%. The average age was 46 years old, and 26.31% of the cases were medical staff. The interval time between first report to continuous zero reports was 129 days. As to COVID-19 (2020), a total of 346 cases were included. 58 of which were severe cases with the incidence of 16.67%. One case of death was reported with a mortality rate of 0.29%. The average age was 38 years old, and no hospital infection among medical staff was reported. The interval time between first report to continuous zero reports was 35 days. Conclusions The prevention and control strategies for COVID-19 (2010) are more effective compared to that of SARS (2003), and the emergency response procedures are worth to be evaluated and summarized.
RESUMEN
The novel coronavirus pneumonia (NCP) continues to spread throughout the country, and the prevention and control of the epidemic has entered a critical period. However, southern cities with severe outbreaks are about to enter the seasonal influenza season. We should strengthen the epidemiological investigation, optimize the laboratory testing strategy, take effective measures, strengthen the prevention and control of influenza epidemic, and minimize the interference to the new coronavirus epidemic.
RESUMEN
Objective To understand the epidemiological and molecular characteristics of a norovirus-borne outbreak caused by GⅡ.4 Sydney 2012 in a university of Guangzhou to provide evidence for the prevention and control strategy on norovirus-caused epidemics.Methods A self-designed questionnaire was used to collect clinical information from the patients as well as other data related to the epidemic.Pathogen detections were performed through anal swab specimens from the patients,kitchen workers and samples from the environment.Positive samples were further sequenced for phylogenetic analysis.A case-control study was employed to identify the risk factors related to this outbreak.Results A total of 226 cases of norovirus-borne infection were identified between September 17 and 21,2017,including 223 students,with an attack rate of 0.73％ (223/30 711),and 3 kitchen workers.Students staying in the A dormitory area had the highest attack rate (1.73％,164/9 459).No clustering was found in different colleges or classes.Results from the case-control study revealed that people who ate at the canteen in A dormitory area during September 18 to 20 was at risk for the onset of illness (OR=10.75,95％CI:5.56-20.79).The highest risk was related to the dinner on September 18.Another significant risk factor (OR=3.65,95％ CI:1.92-6.94) was close personal contact in the same room of the dorm.The 3 norovirus infected kitchen workers were all from the canteen in A dormitory area where the positive rate of norovirus identified in kitchen workers was 26.67％ (12/45).Positive samples were sequenced and sub-typed with results showing that the GⅡ.4 Sydney 2012 variant and the nucleotide sequences of cases and kitchen workers were 100％ identical.Conclusions The outbreak was caused by norovirus GⅡ.4 Sydney 2012 variant at campus.Similar outbreaks had been seen since 2013,with the routes of transmission most likely due to food-borne or personal contact.
RESUMEN
Objective To investigate the infection pattern and etiological characteristics of a case of human infection with highly pathogenic avian influenza A (H7N9) virus and provide evidence for the prevention and control of human infection with highly pathogenic avian influenza virus.Methods Epidemiological investigation was conducted to explore the case's exposure history,infection route and disease progression.Samples collected from the patient,environments and poultry were tested by using real time reverse transcriptase-polymerase chain reaction (RT-PCR).Virus isolation,genome sequencing and phylogenetic analysis were conducted for positive samples.Results The case had no live poultry contact history,but had a history of pulled chicken processing without taking protection measure in an unventilated kitchen before the onset.Samples collected from the patient's lower respiratory tract,the remaining frozen chicken meat and the live poultry market were all influenza A (H7N9) virus positive.The isolated viruses from these positive samples were highly homogenous.An insertion which lead to the addition of multiple basic amino acid residues (PEVPKRKRTAR/GL) was found at the HA cleavage site,suggesting that this virus might be highly pathogenic.Conclusions Live poultry processing without protection measure is an important infection mode of "poultry to human" transmission of avian influenza viruses.Due to the limitation of protection measures in live poultry markets in Guangzhou,it is necessary to promote the standardized large scale poultry farming,the complete restriction of live poultry sales and centralized poultry slaughtering as well as ice fresh sale.
RESUMEN
Objective To study the willingness and influence factors related to "centralized slaughtering,fresh poultry listing and marketing" strategy,among the household chefs,and provide reference for government to adjust and optimize the strategy on avian influenza prevention.Methods According to the geographical characteristics and regional functions,6'monitoring stations' were selected from 12 residential districts of Guangzhou,respectively.Another 21 meat markets which selling live poultry,were selected in each station and 5 household chefs of each market were invited to attend a face to face interview.Basic information,personal cognitive,willingness and influencing factors to the policy were under study.Univariate and multivariate logistic regression methods were used.Results A total of 664 household chefs underwent the survey and results showed that the rate of support to the "centralized slaughtering,fresh poultry listing and marketing" strategy was 44.6％ (296/664).Results from the multi-factor logistic regression showed that those household chefs who were males (OR=1.618,95％ CI:1.156-2.264,P=0.005),having received higher education (OR=1.814,95％ CI:1.296-2.539,P=0.001),or believing that the existence of live poultry stalls was related to the transmission of avian influenza (OR=1.918,95％CI:1.341-2.743,P＜0.001) were factors at higher risk.These household chefs also intended to avoid the use of live poultry stalls (OR =1.666,95％CI:1.203-2.309,P=0.002) and accept the "centralized slaughtering,fresh poultry listing and marketing" strategy.Conclusion Detailed study on this subject and,setting up pilot project in some areas as well as prioritizing the education programs for household chefs seemed helpful to the implementation of the'freezing-fresh poultry'policy.
RESUMEN
Objective To understand the epidemiological and molecular characteristics of a norovirus-borne outbreak caused by GⅡ.4 Sydney 2012 in a university of Guangzhou to provide evidence for the prevention and control strategy on norovirus-caused epidemics.Methods A self-designed questionnaire was used to collect clinical information from the patients as well as other data related to the epidemic.Pathogen detections were performed through anal swab specimens from the patients,kitchen workers and samples from the environment.Positive samples were further sequenced for phylogenetic analysis.A case-control study was employed to identify the risk factors related to this outbreak.Results A total of 226 cases of norovirus-borne infection were identified between September 17 and 21,2017,including 223 students,with an attack rate of 0.73％ (223/30 711),and 3 kitchen workers.Students staying in the A dormitory area had the highest attack rate (1.73％,164/9 459).No clustering was found in different colleges or classes.Results from the case-control study revealed that people who ate at the canteen in A dormitory area during September 18 to 20 was at risk for the onset of illness (OR=10.75,95％CI:5.56-20.79).The highest risk was related to the dinner on September 18.Another significant risk factor (OR=3.65,95％ CI:1.92-6.94) was close personal contact in the same room of the dorm.The 3 norovirus infected kitchen workers were all from the canteen in A dormitory area where the positive rate of norovirus identified in kitchen workers was 26.67％ (12/45).Positive samples were sequenced and sub-typed with results showing that the GⅡ.4 Sydney 2012 variant and the nucleotide sequences of cases and kitchen workers were 100％ identical.Conclusions The outbreak was caused by norovirus GⅡ.4 Sydney 2012 variant at campus.Similar outbreaks had been seen since 2013,with the routes of transmission most likely due to food-borne or personal contact.
RESUMEN
Objective To investigate the infection pattern and etiological characteristics of a case of human infection with highly pathogenic avian influenza A (H7N9) virus and provide evidence for the prevention and control of human infection with highly pathogenic avian influenza virus.Methods Epidemiological investigation was conducted to explore the case's exposure history,infection route and disease progression.Samples collected from the patient,environments and poultry were tested by using real time reverse transcriptase-polymerase chain reaction (RT-PCR).Virus isolation,genome sequencing and phylogenetic analysis were conducted for positive samples.Results The case had no live poultry contact history,but had a history of pulled chicken processing without taking protection measure in an unventilated kitchen before the onset.Samples collected from the patient's lower respiratory tract,the remaining frozen chicken meat and the live poultry market were all influenza A (H7N9) virus positive.The isolated viruses from these positive samples were highly homogenous.An insertion which lead to the addition of multiple basic amino acid residues (PEVPKRKRTAR/GL) was found at the HA cleavage site,suggesting that this virus might be highly pathogenic.Conclusions Live poultry processing without protection measure is an important infection mode of "poultry to human" transmission of avian influenza viruses.Due to the limitation of protection measures in live poultry markets in Guangzhou,it is necessary to promote the standardized large scale poultry farming,the complete restriction of live poultry sales and centralized poultry slaughtering as well as ice fresh sale.
RESUMEN
Objective To study the willingness and influence factors related to "centralized slaughtering,fresh poultry listing and marketing" strategy,among the household chefs,and provide reference for government to adjust and optimize the strategy on avian influenza prevention.Methods According to the geographical characteristics and regional functions,6'monitoring stations' were selected from 12 residential districts of Guangzhou,respectively.Another 21 meat markets which selling live poultry,were selected in each station and 5 household chefs of each market were invited to attend a face to face interview.Basic information,personal cognitive,willingness and influencing factors to the policy were under study.Univariate and multivariate logistic regression methods were used.Results A total of 664 household chefs underwent the survey and results showed that the rate of support to the "centralized slaughtering,fresh poultry listing and marketing" strategy was 44.6％ (296/664).Results from the multi-factor logistic regression showed that those household chefs who were males (OR=1.618,95％ CI:1.156-2.264,P=0.005),having received higher education (OR=1.814,95％ CI:1.296-2.539,P=0.001),or believing that the existence of live poultry stalls was related to the transmission of avian influenza (OR=1.918,95％CI:1.341-2.743,P＜0.001) were factors at higher risk.These household chefs also intended to avoid the use of live poultry stalls (OR =1.666,95％CI:1.203-2.309,P=0.002) and accept the "centralized slaughtering,fresh poultry listing and marketing" strategy.Conclusion Detailed study on this subject and,setting up pilot project in some areas as well as prioritizing the education programs for household chefs seemed helpful to the implementation of the'freezing-fresh poultry'policy.
RESUMEN
In recent years,great effort has been made in the promotion of health for all in China.Articles on column on chronic and non-communicable disease risk factors in Uighur population,analysis based on the investigation results of Uygur population health status in the Kashi area of Xinjiang of China and similar domestic and foreign studies showed that the health data in different countries are different.The differences in health related data exist in different ethnic groups even in same country or same ethnic group in different areas.Only by fully understanding the differences in disease and related factors among different ethnic groups,developing individualized health indicators and conducting targeted intervention,the goal of health for all can be achieved.
RESUMEN
In recent years,great effort has been made in the promotion of health for all in China.Articles on column on chronic and non-communicable disease risk factors in Uighur population,analysis based on the investigation results of Uygur population health status in the Kashi area of Xinjiang of China and similar domestic and foreign studies showed that the health data in different countries are different.The differences in health related data exist in different ethnic groups even in same country or same ethnic group in different areas.Only by fully understanding the differences in disease and related factors among different ethnic groups,developing individualized health indicators and conducting targeted intervention,the goal of health for all can be achieved.
RESUMEN
Objective To We Used high-dose paraquat to induce apoptosis of A549 cells,and observed the expression of E-cadherin,α-SMA,caspase-8,caspase-3 and caspase-9.Then explored the possible mechanisms of apoptosis.Methods A549 cells were treated with various concentrations of PQ (0.1-1.0 mmol/L) for 24 and 48 hours,then observe the cell morphology and measured cell survival rate respectively determined by MTT method.A549 cells were treated with various concentrations of PQ (0.1,0.2,0.3 mmol/L) for 24 hours.The expressions of the mRNAs for α-SMA、E-cadherin,caspase-8,caspase-3 and caspase-9 were analysed by quantitative real-time PCR.Exposed to various concentrations of PQ (0.1,0.2,0.3mmol/L) for 24 hours,we analysed the protein expressions of α-SMA、E-cadherin、caspase-8、caspase-3 and caspase-9 by Western blot analysis.Results Treated with various concentrations of PQ (0.1-1.0mmol/L) for 24 hours,the A549 cells survival rate significantly reduced by MTT method.For 48 hours,the survival rate was lower.So,in subsequent experiments,we used 0.1,0.2 and 0.3 mmol/L concentration of paraquat to A549 cells,trained for 24 hours.After high-dose (0.1,0.2 and 0.3 mmol/L) exposure to PQ,a decrease in E-cadherin was observed while a decrease in α-SMA was also detected of the mRNAs.While the expressions of the mRNAs for caspase-8、caspase-3 and caspase-9 wereincrease.The protein expressions of α-SMA and E-cadherin were decrease with the increase of concen trations by Western blot analysis,and the levels of caspase-8、caspase-3 and caspase-9 were increase.Conclusions After high-dose short-time exposure to PQ,the survival rate of A549 cells is decreased obviously,cell morphology changed significantly,and the expressions of α-SMA and E-cadherin were decrease.But the expressions of caspase-8、caspase-3 and caspase-9 were increase.
RESUMEN
Objective To evaluate the influence of different hemoperfusion (HP) intensities on prognosis in patients with acute paraquat (PQ) poisoning. Methods The data of patients with acute PQ poisoning admitted to Department of Emergency of Shengjing Hospital Affiliated to China Medical University from January 2012 to February 2016 were retrospectively analyzed. Patients satisfied the following criteria were enrolled in the study: adult patients, ingestion PQ within 12 hours and receiving HP treatment within 24 hours. Depending on the intensity of HP, patients were divided into lower intensity HP group (LHP, defined as receiving HP for less than 2 hours, 1 column) and higher intensity HP group (HHP, defined as receiving HP longer than 6 hours, 3 columns). Patients were divided into three groups, i.e. small dose ( 40 mL) poisoning groups on the basis of PQ ingestion volume. The baseline data of patients after hospital admission and arterial partial pressure of oxygen (PaO2), white blood cell (WBC), proportion of neutrophils (NEUT), alanine aminotransferase (ALT), total bilirubin (TBil), MB isoenzyme of creatine kinase (CK-MB), blood urea nitrogen (BUN) and serum creatinine (SCr) on the 4th day after hospital admission were compared, and 28-day mortality was followed up. Multiple logistic regression model was used to evaluate the characteristics of the dead patients within 28 days. The predictive value of each indicator for death in early stage of poisoning was analyzed with receiver operating characteristic curve (ROC). Results ① LHP group consisted 67 patients of 144 patients included with 24 in small dose group, 27 in medium dose group and 16 in high dose group. HHP group consisted of 77 patients with 28 in small dose group, 29 in medium dose group and 20 in high dose group. There were no significant differences in age, ingestion dose, time from poisoning to gastric lavage, and the time from the admission to HP between different intensities groups. ② Compared with LHP group, 28-day mortality in HHP group was significantly lowered (46.8% vs. 70.1%, χ2 = 8.032, P = 0.005). The patients receiving HHP in medium and small doses groups had lower 28-day mortality compared with those receiving LHP (41.4% vs. 74.1%, χ2 = 4.841, P = 0.017; 21.4% vs. 50.0%, χ2 = 4.661, P = 0.043). But there was no significant difference in 28-day mortality in high dose group between HHP and LHP (90.0% vs. 93.8%, χ2 = 0.000, P = 1.000). ③ The survival time of 12 patients with high dose poisoning was less than 72 hours, which were excluded for statistical analysis. Compared with LHP, the indexes of medium and small dose groups were obviously improved after HHP for 4 days. ④ Compared with survival group, PQ ingestion dose in non-survival group was increased, time from poisoning to gastric lavage and the time from the admission to HP were prolonged, and lower patients receiving HHP. ⑤ It was indicated by multiple logistic regression model that PQ ingestion dose [medium dose: odds ratio (OR) = 0.018, 95% confidence interval (95%CI) = 0.004-0.085, P < 0.001; high dose: OR = 0.075, 95%CI = 0.018-0.322, P < 0.001], time from poisoning to gastric lavage over 120 minutes (OR = 0.146, 95%CI = 0.045-0.470, P = 0.001), time from admission to HP over 4 hours (OR = 0.108, 95%CI = 0.029-0.395, P = 0.001), and LHP selection (OR = 0.363, 95%CI = 0.142-0.930, P = 0.035) were risk factors for the death at 28 days in patients with acute PQ poisoning. ⑥ It was shown by ROC curve that area under ROC curve (AUC) of PQ ingestion dose was 0.804 (95%CI = 0.723-0.885); when the cut-off value was 5.50 mL, the sensitivity was 94.0%, and the specificity was 65.6%. The AUC of time from poisoning to gastric lavage was 0.702 (95%CI = 0.617-0.786); when the cut-off value was 85.00 minutes, the sensitivity was 48.2%, and the specificity was 83.6%. AUC of time from the admission to HP was 0.719 (95%CI = 0.636-0.801); when the cut-off value was 3.50 hours, the sensitivity was 59.0%, and the specificity was 78.7%. Conclusions PQ ingestion dose, time from poisoning to gastric lavage, and time from the admission to HP are valuable factors for prognosis of the patients. HHP can improve the prognosis of patients with ingestion PQ less than 40 mL as early as possible, but for high dose group patients there was no much effect.
RESUMEN
ObjectiveTo evaluate the feasibility and clinical significance of emergency bedside ultrasound-guided central venous catheterization performed by emergency department doctors.Methods The clinical data of 216 patients, who underwent central venous catheterization in the Department of Emergency of Shengjing Hospital of China Medical University from January 2009 to June 2014 were retrospectively analyzed. All the patients received femoral vein puncture or internal jugular vein catheterization. The patients were divided into three groups according to the method of catheterization: 72 patients received emergency ultrasound-guided central venous catheterization by emergency doctors independently were assigned as A group, 72 patients underwent catheterization by emergency doctors after being demarcated by ultrasound doctors served as B group, and 72 patients who underwent catheterization method guided by traditional landmark served as C group. Success rate, time spent for catheterization, number of attempts for intubation, and incidence of complications were compared among three groups.Results As compared with that of groups B and C, a higher success rate [98.61% (71/72) vs. 83.33% (60/72), 73.61% (53/72), bothP 0.05].Conclusion Emergency bedside ultrasound-guided catheterization resulted in higher success rate and less related complication, therefore it can be recommended for widely application in emergency department treatment.
RESUMEN
The factor analysis method applied in imaging mass spectrometry data analysis was studied. The imaging mass spectrometric data were obtained by air flow-assisted ionization imaging mass spectrometry method. The sample contained some symbols which were drawn on slides using three different inks ( red, blue, black) . The imaging data analyzed by factor analysis method were divided into the background, black, blue and red factor. The results showed that the scores of m/z=443. 2, 478. 4, 322. 2(344. 2) in red, blue, black factor respectively were much larger than others. Therefore, they were markers of three inks. The results accorded with actual condition well and proved that the application of factor analysis in imaging mass spectrometric data analysis was feasible. The data analysis results of factor analysis and principal component analysis were compared. The results showed that the target sample markers could be extracted by factor analysis simply and quantitatively. It was of great potential in biomarker extraction, diseases diagnose and pharmacological analysis.
RESUMEN
To screen the harmful substance 5-hydroxymethyl furfural content in commercially available traditional Chinese medicine injection which are commonly used, and to preliminarily evaluate the quality of these injections, 5-hydroxymethyl furfural was taken as an index. The contents of 5-hydroxymethyl furfural in 56 samples which consist of 23 kinds of traditional Chinese medicine injections and glucose injection were determined using LC-MS/MS, and 5-hydroxymethyl furfural was detected in 52 of these samples. The minimal content was 0.0038 microg x L(-1) and the maximum content was 1420 microg x mL(-1). The contents of 5-hydroxymethyl furfural were significantly different in traditional Chinese medicine injection which came from different kinds, manufacturers or batches. The results showed the quality difference of commercially available traditional Chinese medicine injection is significant taking 5-hydroxymethyl furfural content as assessment index. More attention should be paid to the safety of 5-hydroxymethyl furfural in traditional Chinese medicine injection, and unified limitation standard should be set to improve medication safety of traditional Chinese medicine injection.
RESUMEN
<p><b>OBJECTIVE</b>To document the investigation and control of an outbreak of gastroenteritis in City G, South China, and provide a reference for preventing future outbreaks.</p><p><b>METHODS</b>An ambispective cohort study was designed. Attack rate (AR) and relative risks (RR) were calculated to identify the causes of gastroenteritis. Investigations using questionnaires included personal interviews with patients and doctors, reviews of medical records, laboratory examinations of fecal specimens and continuous hygiene monitoring of water samples from the waterworks.</p><p><b>RESULTS</b>Overall, 427/71534 (AR=5.97%) cases were identified between October 31 and November 12 2010. Geographic distribution was highly localized, with 80% of cases occurring in the areas supplied by waterworks-A. Consumption of water provided solely by waterworks-A was found to be associated with illness (RR=8.20, 95 CI%:6.12-10.99) compared with that from waterworks-B. Microbiological analyses confirmed the presence of Norovirus in six of eight fecal samples from symptomatic patients, two water samples from waterworks-A and two sewage samples. After taking effective measures, the hygienic indices of waterworks-A met health criteria again on November 9 and no cases were reported 3 days later.</p><p><b>CONCLUSION</b>The outbreak reported here was caused by drinking tap water contaminated with sewage at the source. Early identification of possible contamination sources and awareness of changes that might negatively impact water quality are important preventive measures to protect public health.</p>
Asunto(s)
Adolescente , Adulto , Anciano , Niño , Preescolar , Femenino , Humanos , Lactante , Masculino , Persona de Mediana Edad , Adulto Joven , Brotes de Enfermedades , Gastroenteritis , Epidemiología , Contaminación del AguaRESUMEN
Objective To asses the value of detecting bacterial DNAs in rat's blood with PCR for early diagnosis of colonic anastemotic leakage.Methods 48 healthy female Wistar rats were random divided into three groups: Group A(n=8,sham operation group),Group B(n=20,colonic anastomosis group),Group C(n=20,colonic anastomotic leakage group).Group B and C rats underwent standardized colon resection 3cm away from the ileocecal junction 10cm,Group B rats were done with a complete anastomosis(end-to-end single layer anastomosis with 0# silk sutures) while Group C rats were done with an anastomosis leaving a 5mm opening in colonic anterior wall.lml and 3ml venous blood samples were collected from Group A,B and C.DNAs were extracted from these blood samples and PCR techniques were used to amplify lacZ genes from Escherichia coli and 16S ribosomal RNA genes(16SrRNA genes) 3 days after operation.The data were analyzed by chi square test.Specimens of the experimental intestine were HE stained for pathological studies.Results The positive ratios of expressing lacZ genes in peripheral blood(PB) with PCR in Group C were significantly higher than that in Group B(P<0.05),hut there were no differences between the two groups in expressing 16SrRNA genes(P>0.05).Conclusions It could be a useful way to detect lacZ genes of Escherichia coli from PB by PCR but not 16SrRNA genes for diagnosis of colonic anastomotic leakages.
RESUMEN
Objective We aimed to explore the expression of FHIT and investigate its correlation with clinicopathological features and prognosis of gallbladder carcinoma.Method Immunohistoehemieal detection of FHIT was performed on samples from 43 gallbladder carcinoma and 43 cholecystitis,and 2 years follow up was performed.Result FHIT protein was overexpressed in eholecystitis(x2=31.74,P=0.000).The overexpression was significantly related to differentiation and Nevin staging of gallbladder carcinoma(x2=4.47,P=0.035;x2=8.33,P=0.015);(rs=-0.56,P=0.031;rs=-0.68,P=0.014).Log-rank test showed that overexpression of FHIT had a good prognosis(x2=4.11,P=0.042).Cox analysis showed that expression of FHIT was all independent prognostic marker for postresectional survival of gallbladder carcinoma(RR:2.89,95%CI[2.46-3.32]).Conclusion Loss expression of FHIT closely correlated with clinicopathological features of gallbladder carcinoma.The expression of FHIT was an independent prognostic marker for post-resectional survival of gallbladder carcinoma.
RESUMEN
Objective To evaluate clinical features and the clinical application of radical transabdominal operation for the senile cardiac cancer by using the EEA(end-to-end anastomosis) stapler.Methods 80 senile patients underwent curative intent due to cardic cancer from 1991 to 2001,and the clinical effects of transabdominal operation for cardiac carcinoma by using the EEA stapler were investigated retrospectively.Results The average age of the patients was 70-year old, and the ratio of men to women was 5∶1. The average course of the disease was 3 2 months. Only 2 5% of the patients got early diagnosis, and the rate of the preoperative complications was 60%. Patients were treated by radical transabdominal operation by using stapler, and the rates of radical dissection and palliative dissection were 71 3% and 18 8% respectively. The incidence of postoperative complication was 5%, and the in-patient mortality was 1 25%, and the above indexes were significantly lower than those in the trans-thoracicoabdominal approach. The 5-year survival rate was 20% after gastrectomy.Conclusions This study showed that the approach exerted little effect on the respiratory and circulatory systems, and it could decrease the surgical risk and the incidence of diverse complications.
RESUMEN
Objective To investigate the diagnosis and the relationship between its clinicopathological characteristics,treatment and the prognosis of primary colorectal lymphoma.Methods The clinical data of 20 primary colorectal lymphoma patients who received operative treatment in the past 34 years in our hospital were retrospectively summarized,and the influence of treatment and each clinicopathological factor on prognosis was assessed.Results Tumor size,lymph node metastasis,invasion of neighboring organs and distant metastasis,and type of operative treatment were significantly related to the survival(P0.05).Conclusions Diagnosis of primary colorectal lymphoma before operation is difficult,and misdiagnosis is common.Operative treatment is the main therapeutic means for colorectal lymphoma.Radical operation combined with chemotherapy can gain a good prognosis.