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OBJECTIVE To investigate the effects of dexmedetomidine (DEX)-assisted general anesthesia on hemodynamics and cognitive function in elderly patients undergoing painless enteroscopy. METHODS From July 2020 to February 2022, 180 elderly patients undergoing painless enteroscopy in the outpatient operating room of the Second People’s Hospital of Jiaozuo were selected and divided into a control group (n=90) and an observation group (n=90) according to the random number table method. The control group was given routine general anesthesia (induced with sufentanil and propofol anesthesia, maintained with propofol anesthesia), while the observation group was given DEX-assisted general anesthesia after preoperative preparation. The hemodynamic indexes [mean arterial pressure (MAP), heart rate (HR)], dosage of general anesthesia, awakening time, cognitive function [minimized mental status examination (MMSE)], and the incidence of adverse drug reactions were compared between the two groups. RESULTS There was no significant difference in various indicators before anesthesia (T0) between 2 groups (P> 0.05). Compared with T0, MAP and HR of the two groups were reduced significantly 10 minutes after anesthesia (T1), at the time of enteroscope reaching the ileum and cecum (T2), enteroscope withdrawal after the examination (T3), and 10 minutes after surgery (T4); but MAP and HR of the observation group at T1, T2, T3, and T4 were all higher than those of the control group (P<0.05). Compared with the control group, the dosage of general anesthesia and the recovery time in the observation group were significantly reduced or shortened, the MMSE scores at 1, 2 and 3 days after the operation were significantly increased, while the incidence of cognitive dysfunction and adverse reactions were significantly reduced (P<0.05). CONCLUSIONS DEX can effectively improve the hemodynamics and cognitive function of elderly patients undergoing painless enteroscopy, which is beneficial to reduce the dosage of general anesthesia, shorten recovery time, and has better safety.
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Objective To search for the reports of adverse events of levofloxacin use in children using the FAERS database,and to mine and analyze the data to provide reference for safe clinical use.Methods The data reported of adverse events of levofloxacin use in children from January 1,2004 to June 30,2023 were retrieved through the OpenVigil 2.1 platform,and the relevant data were analyzed based on the reporting odds ratio(ROR)method.Results A total of 484 cases of adverse events of levofloxacin in children were retrieved,and 94 positive risk signals were found.The main systemic organs involved were various musculoskeletal and connective tissues,gastrointestinal system,systemic and administration sites,and the top five positive signals were Dimycodes infection(ROR=822.87),tendon pain(ROR=563.71),Mycobacterium ulcers infection(ROR=352.65),tendon rupture(ROR=341.91),and immune reconstitution inflammatory syndrome-related tuberculosis(ROR=310.84).The top five positive signals not mentioned in the label were Mycobacterium ulcerans infection(ROR=352.65),immune reconstitution inflammatory syndrome-associated tuberculosis(ROR=310.84),central nervous system tuberculoma(ROR=102.85),linear IgA disease(ROR=82.68),and increased intracranial pressure(ROR=32.46).Conclusion In addition to the known adverse events,levofloxacin is used in children,and the risk signal intensity of adverse reactions such as increased intracranial pressure and tuberculosis-related diseases is high,so it is recommended to carefully select and strengthen relevant safety monitoring.
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ObjectiveTo explore the association between short-term exposure to atmospheric fine particulate matter (PM2.5) and ozone (O3) and systemic inflammatory indicators in patients with pneumonia, and to identify the susceptible populations. MethodsFrom September 2018 to April 2020, data of 1 480 patients admitted for pneumonia was collected from a tertiary hospital in Taiyuan City. Generalized additive models (GAMs) were used to explore the associations between PM2.5 and O3 exposure and inflammatory indicators of patients with pneumonia; and to explore the susceptibility factors and susceptible populations to PM2.5 and O3 exposures through stratified analyses. ResultsThe short-term exposure to PM2.5 was associated with changes in peripheral blood C-reation protein (CRP), erythrocyte sedimentation (ESR), easinophil (EOS), neutrophil (NEU) and neutrophil-lymphocyte ratio (NLR) in patients with pneumonia, and there were different degrees of hysteresis effects, with the effect values reaching a maximum at lag03, lag03, lag0, lag03, lag03, respectively, which were 4.13% (95%CI: 0.43%‒7.84%), 3.10% (95%CI: 0.24%‒5.97%), 5.27% (95%CI: 3.12%‒7.42%), 1.85% (95%CI: 0.36%‒3.34%), and 2.53% (95%CI: 0.53%‒4.74%) for every 10 μg·m-3 of PM2.5. The changes in O3 concentration were associated with the elevation of peripheral blood PCT and ESR in patients with pneumonia, and their effect values all reached the maximum at lag01 d, every 1 μg·m-3 of O3 elevation increased by 0.38% (95%CI: 0.04%‒0.73%) and 0.47% (95%CI: 0.19%‒0.76%), respectively. Stratified analyses showed that the associations of PM2.5 with peripheral blood CRP, ESR, NEU, and NLR in pneumonia patients were more significant in males, the elderly, and those with onset in the cold season; the associations of O3 with peripheral blood PCT and ESR in pneumonia patients were more significant in the elderly and those with onset in the warm season, and the peripheral blood CRP and PCT in female patients with pneumonia were more susceptible to the changes of O3. ConclusionShort-term exposure to atmospheric PM2.5 and O3 are positively associated with changes in inflammatory indicators in patients with pneumonia, and the effects of PM2.5 on patients with pneumonia are more extensive than those of O3, with a longer lag effect. In addition, elderly patients with pneumonia are more sensitive to air pollution, male patients with pneumonia are more sensitive to PM2.5, and female patients with pneumonia are more sensitive to O3. Cold and warm seasons can exacerbate the effects of PM2.5 and O3 on inflammatory indicators in patients with pneumonia, respectively, and the patients must be protected well.
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Production internship is an important teaching tache for undergraduate students to carry out engineering training by using professional skills, and it is a key starting point for fostering application-oriented talents in biotechnology. The Course Group of 'production internship of biotechnology majors' of Binzhou University is investigating application-oriented transformation for local regular colleges and universities, as well as fostering high-level application-oriented talents. By taking green fluorescent protein (GFP) polyclonal antibody as an example, the reform and practice on teaching content, teaching mode, assessment method, continuous improvement of curriculum were carried out. Moreover, the characteristics of the Yellow River Delta-Binzhou Biotechnology & Pharmaceutical Industrial Cluster were taken into account to intensify academic-enterprise cooperation. On one hand, this Course Group designed and rearranged the course contents, carried out essential training through online resources and platforms such as virtual simulation, and recorded, tracked and monitored the progress of production internship through practical testing and software platforms like 'Alumni State'. On the other hand, this Course Group established a practice-and application-oriented assessment method in the process of production internship and a dual evaluation model for continuous improvement. These reform and practices have promoted the training of application-oriented talents in biotechnology, and may serve as a reference for similar courses.
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Humains , Internat et résidence , Programme d'études , Étudiants , BiotechnologieRÉSUMÉ
Background Atmospheric fine particulate matter (PM2.5) can induce abnormal early embryo development, resulting in adverse pregnancy outcomes such as embryo damage and spontaneous abortion. The vascular remodeling of maternal-fetal interface regulated by hypoxia inducible factor-1α (HIF-1α)/vascular endothelial growth factor (VEGF) axis is a key link in early embryo development. Objective To investigate the effects of pre-pregnancy PM2.5 exposure on the uterine state of mice before conception and the vascular remodeling of maternal-fetal interface after conception, and to further explore the regulatory role of the HIF-1α/VEGF axis. Methods Forty eight-week-old C57BL/6J sexually mature female mice and several males (for mating, without any treatment) were adaptive fed for 1 week. The female mice were divided into a PM2.5 exposure group and a control group, 20 mice per group. The PM2.5 exposure group was given 3 mg·kg−1 PM2.5 suspension by nasal instillation, once every other day for four weeks; the control group were treated with the same dose of blank sampling membrane suspension. Body weight of the mice was recorded every week during the experimental period. At the end of the exposure, six mice from each group were sacrificed. Then the uterus was weighted and its organ coefficients were calculated, a histopathological morphology evaluation was conducted by HE staining, and the mRNA expressions of HIF-1α, VEGF and its receptors Flt-1 and Flk-1 in the uterus samples were further examined. The remaining 14 female mice in each group were caged with male mice overnight with a sex ratio of 2:1, then we calculated the pregnancy rate. On gestation day 10 (GD10), the female mice were decapitated and the uterus was dissected, the histopathological morphology of embryo and placenta were observed by HE staining, and the mRNA expressions of HIF-1α, VEGF and its receptors Flt-1 and Flk-1 were detected as well in the uterus samples. Results Compared with the control group, the pre-pregnancy PM2.5 exposure had no significant effect on body weight gain of the female mice, but decreased uterine organ coefficient, accompanied by pathological damage such as endometrium thinning as well as decreased mRNA expressions of HIF-1α, VEGF and its receptors Flt-1 and Flk-1 (all Ps<0.05). After mating, the pre-pregnancy PM2.5 exposure induced a decrease of the pregnancy rate (control group: 9/14; exposure group: 5/14) and abnormal embryo arrangement, small placenta, narrowing of spiral arteries (control group: 1.00±0.06; exposure group: 0.86±0.08; P=0.01), as well as significant decreases in HIF-1α, VEGF and its receptor Flk-1 mRNA expressions. (all Ps <0.05). Conclusion Pre-pregnancy PM2.5 exposure has adverse effects on the pathological structure and angiogenesis in female mice uterus, leading to abnormal vascular network remodeling at the mother-fetal interface after conception, and the HIF-1α/VEGF axis may play a regulatory role.
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This study deeply analyzes the common problems of three military medical universities in the management of undergraduate extracurricular scientific research, such as lack of communication means, limited online resources, backward laboratory opening and low utilization rate of equipment. We have built a cloud platform management system for undergraduate extracurricular scientific research. This system firstly sets up a teaching resources storage module including videos, PPTs, documents, pictures, electronic materials, question bank, etc. Then four subsystems for different roles of students, mentors, experimental teaching staff and administrators are constructed. Finally, this system realizes independent experiments by students, real-time evaluation by mentors, instrument sharing and efficient management through the seamless connection with the user terminal equipment. And the study also makes evaluation on the present usage.
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Objective:To explore the effects of scenario simulation combined with case-based learning (CBL) teaching method on the operation skills, learning initiative and family satisfaction of pediatric nursing students.Methods:In the study, 51 nursing students who interned in Bengbu First People's Hospital from March to November in 2019 were selected as the control group, having the traditional teaching method; another 51 nursing students interned from March to November in 2020 were selected as the research group, taking the scenario simulation combined with CBL teaching method. The theoretical knowledge and operation skills of the two groups of nursing students were assessed, the learning initiative and various abilities were evaluated by using the relevant scales, and the nursing students' satisfaction with teaching was investigated. SPSS 22.0 was used for t test and chi-square test. Results:The theoretical knowledge and operation skill scores of nursing students in the study group were significantly higher than those in the control group ( P<0.05). The scores of each dimension and total score of learning initiative of nursing students in the study group were higher than those in the control group [(68.71±9.03) vs. (50.21±9.86)], including integrating theory with practice [(8.06±1.13) vs. (6.12±1.54)], learning ability practice [(8.15±1.18) vs. (6.53±1.37)], interpersonal communication ability [(8.13±1.07) vs. (6.28±1.39)], clinical thinking ability practice [(8.04±1.26) vs. (5.97±1.42)], ability to analyze and solve problems [(8.46±0.97) vs. (6.51±1.25)]. The scores of various abilities and overall satisfaction with teaching in the research group were significantly higher than those in the control group ( P<0.05). Conclusion:The implementation of scenario simulation combined with CBL teaching method for pediatric nursing students can improve their scores of theoretical knowledge and operational skills, enhance their learning initiative and abilities, and improve their satisfaction with teaching.
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OBJECTIVE:To investigate the utilization of the most used splitting drugs in the inpatients of our hospital,and to promote rational use of splitting drugs. METHODS:The medical orders of oral tablets in the inpatients of our hospital in Jan. 2016 were analyzed statistically in respects of consumption quantity,classification dosage,department dosage and the proportion of scored tablets. RESULTS & CONCLUSIONS:There were 217389 medical orders of tablets in the inpatients of our hospital in Jan. 2016. There were 12792 medical orders of splitting drugs,with utilization rate of 5.88%. The most used splitting tablet were car-diovascular drugs and drug for nervous system,accounting for 53.31% and 20.72% of total. The splitting tablets were mostly used in respiratory and critical care medicine department. Top 10 departments in the list of the number of splitting drug medical orders prescribed 8993 splitting drug medical orders,accounted for 70.30% of total. Top 20 drugs in the list of the number of splitting drugs were involved in 8971 medical orders,accounting for 70.13%of total;there were 14 kinds of scored drugs and 7506 medi-cal orders of splitting scored drugs,accounting for 83.67% of top 20 medical orders of splitting drugs. Among splitting drugs,49 types had scored-line,which were prescribed in 9265 medical orders of splitting drug,accounting for 72.43% of all medical or-ders of splitting drug. Lacking of information in most package inserts about the tablet can or can not split,it is suggested to note this information in package inserts by pharmaceutical enterprises. For commonly used splitting drugs without scored-line,it is pro-posed to produce small-size drugs or add scored-line.
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Objective:To study the effects of down-regulated Smad4 expression on the proliferation and apoptosis of breast carcinoma MCF-7 cells,and to explore their mechanisms.Methods:The human breast carcinoma MCF-7 cells and MDA-MB-231 cells were cultured in vitro.RT-PCR method was used to detect the expression levels of Smad4 mRNA in MCF-7 cells and MDA-MB-231 cells.The Smad4-shRNA plasmid and Scramble-shRNA plasmid were respectively stably transfected into the MCF-7 cells with high expression of Smad4.The experiment was divided into non-transfected MCF-7 cells (normal control) group,Smad4 gene silencing group,Scramble(negative control) group.The proliferation abilities of the cells in various groups were detected by CCK-8 method.The apoptotic rates of the cells in various groups were detected by flow cytometry.Real-time PCR method wasused to detect the mRNA expression levels of the proliferation-related genes CDKN1A,CDK1 and CDK2 and the apoptosisrelated genes Suvivin,bcl-2,caspase 3 and caspase 9.Results:The proliferation abilities of cells had no statistical significance between various groups (P>0.05).The mRNA expression levels of CDKN1A,CDK1 and CDK2 in the cells had no statistical significance between various groups (P>0.05).Compared with normal control group and negative control group,the apoptotic rate of the cells in Smad4 gene silencing group was significantly decreased (P<0.01),the expression levels of Suvivin and bcl-2 mRNA in Smad4 gene silencing group were significantly increased (P<0.01),and the mRNA expression levels of caspase 3 and caspase 9 in Smad4 gene silencing group were significantly decreased (P<0.05).Conclusion:Smad4 could induce the apoptosis of MCF-7 cells by downregulating the expressions of Suvivin and bcl-2 and up-regulating the expressions of caspase 3 and caspase 9.
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Objective:To study the effects of down-regulated Smad4 expression on the proliferation and apoptosis of breast carcinoma MCF-7 cells,and to explore their mechanisms.Methods:The human breast carcinoma MCF-7 cells and MDA-MB-231 cells were cultured in vitro.RT-PCR method was used to detect the expression levels of Smad4 mRNA in MCF-7 cells and MDA-MB-231 cells.The Smad4-shRNA plasmid and Scramble-shRNA plasmid were respectively stably transfected into the MCF-7 cells with high expression of Smad4.The experiment was divided into non-transfected MCF-7 cells (normal control) group,Smad4 gene silencing group,Scramble(negative control) group.The proliferation abilities of the cells in various groups were detected by CCK-8 method.The apoptotic rates of the cells in various groups were detected by flow cytometry.Real-time PCR method wasused to detect the mRNA expression levels of the proliferation-related genes CDKN1A,CDK1 and CDK2 and the apoptosisrelated genes Suvivin,bcl-2,caspase 3 and caspase 9.Results:The proliferation abilities of cells had no statistical significance between various groups (P>0.05).The mRNA expression levels of CDKN1A,CDK1 and CDK2 in the cells had no statistical significance between various groups (P>0.05).Compared with normal control group and negative control group,the apoptotic rate of the cells in Smad4 gene silencing group was significantly decreased (P<0.01),the expression levels of Suvivin and bcl-2 mRNA in Smad4 gene silencing group were significantly increased (P<0.01),and the mRNA expression levels of caspase 3 and caspase 9 in Smad4 gene silencing group were significantly decreased (P<0.05).Conclusion:Smad4 could induce the apoptosis of MCF-7 cells by downregulating the expressions of Suvivin and bcl-2 and up-regulating the expressions of caspase 3 and caspase 9.
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Objective To investigate the relationship between interleukin (IL)-18 and podocyte injury of lupus nephritis (LN). Methods Sixty cases of biopsy proven LN patients were enrolled into the study. Thirty cases were selected as controls. The clinical and pathological data, blood and urine samples and renal tissues were collected. The Nephrin expression was detected by immunohistochemical method and IL-18 was measured by enzyme linked immunosorbent assay. The relationship between IL-18 and the Nephrin expression, clinical and pathological indicators of LN were analyzed. Results Thirty-eight cases were in active disease and 22 cases were in inactive disease in LN group according to SLE disease activity index (SLEDAI) 2000. One-way ANOVA showed that the level of plasma and urine IL-18 in the LN groups were higher than those in the control group [(200±38) ng/ml, (18±5) ng/ml] (F=110.84, 203.09, P0.05), and was negatively correlated with estimated glomerular filtration rate (eGFR) (r=-0.562, P<0.05). It was positively correlated with serum creatinin, blood urea nitrogen, AI, TLAI and inflammatory cell infiltration (r=0.529, 0.482, 0.665, 0.690, 0.671, P<0.05). Conclusion IL-18 has a very close relationship with podocyte injury in patients with LN, and the uIL-18 can be a potential non-invasive detection method to monitor podocyte injury in LN patients.
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Objective:To investigate the expressions of Smad2 and Smad4 in breast carcinoma tissue,and to analyze their relationships with oncogenesis and development of breast carcinoma and significances.Methods:Fifty-three samples of breast ductal carcinoma tissue and 50 samples of surrounding normal tissue were selected.The expression levels of Smad2 and Smad4 in cancer tissue and surrounding normal tissue were detected with immunohistochemical S-P method,and the relationships between the expression levels of Smad2 and Smad4 and the clinicopathologic parameters of breast carcinoma were evaluated.Results:The expression level of Smad2 protein in the breast carcinoma tissue was significantly higher than that in the surrounding normal tissue (z = - 2.08,P 0.05;r=-0.077,P >0.05),tumor size (r= 0.128,P >0.05;r=0.133,P >0.05),lymph node invasion (r =0.163,P >0.05;r =0.006 P >0.05),distant metastasis (r =0.113,P >0.05;r = 0.126,P > 0.05),ER expression (r = 0.056,P > 0.05;r = 0.047,P > 0.05) and PR expression (r=0.129,P >0.05;r=0.107,P >0.05).However,the expression levels of Smad2 and Smad4 were negatively correlated with the expression of HER2 (r = - 0.388,P < 0.01;r = - 0.360,P < 0.01 ) and pathological grade (r = - 0.331,P < 0.05;r = - 0.388,P < 0.01 ).The expression of Smad2 was positively correlated to the expression of Smad4 in breast carcinoma (r=-0.83,P <0.01).Conclusion:The expressions of Smad2 and Smad4 may play an important role in the development of breast carcinoma,and they may be used as the potential biological markers for evaluating the degree of malignancy and prognosis of breast carcinoma.
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Objective To investigate the infection status and genotype distribution of human papillomavirus (HPV) infection in Changzhou district ,and to provide a theoretical basis for the prevention ,development and clinical diagnosis and treatment of HPV . Methods From October 2015 to July 2016 ,1 718 cases of female cervical epithelial cells were collected ,and 28 kinds of gene typing were detected by PCR‐reverse dot blot hybridization .Results The infection rate:1 718 cases of women were collected ,the positive HPV infections were 34 .23% .The infection types :single infection rate was 23 .57% (405/1 718) .The high‐risk HPV subtype in‐fections accounted for 17 .17% (295/1 718) and the low‐risk HPV subtype infections accounted for 5 .18% (89/1 718) ,suspected high‐risk infection was 1 .22% (21/1 718) .Multiple infection rate was 10 .94% (188/1 718) .HPV52 was the most common infec‐tion among high‐risk HPV infection ,the positive rate was 16 .16% (95/588) .HPV61 was the most common infection among low‐risk HPV infection ,the positive rate was 4 .08% (24/588) .There was no significant difference between age and HPV positive rate . The 61-70 age group had the highest HPV multiple infection rate in all age groups .Conclusion The high HPV infection is ob‐served in Changzhou district ,among which single HPV52 infection and the high‐risk HPV infection are the most common infec‐tions .There is difference in HPV infection among different age groups .
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Objective:To compare the survival of resected gastric cancer patient treated with oxaliplatin, 5-fluorouracil, and leu-covorin (FOLFOX6) with those treated with oxaliplatin and capecitabine (XELOX). Methods:A total of 147 resected gastric cancer pa-tients accepted the treatment. Among them, 99 were treated with FOLFOX6 and 48 were treated with XELOX. Adverse events and sur-vival rates of the two groups were compared. Results:Incidence of leukopenia and hepatic dysfunction in the FOLFOX6 group was sig-nificantly higher than that of the XELOX group (P0.05) between the two groups. After 1, 3, and 5 years, disease-free and overall survivals between the two groups were not significantly differ-ent (P>0.05). Conclusion:The effects of FOLFOX6 and XELOX adjuvant chemotherapies on long-term survival of resected gastric cancer patients were found to have no significant difference.
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<p><b>OBJECTIVE</b>To explore the experimental basis of the "water metabolism theory" in traditional Chinese medicine by observing the changes of aquaporin-1 in the lung, spleen and kidney.</p><p><b>METHODS</b>Rat models of Kidney Yang Deficiency induced by gavage with 2% adenine suspension for 4 weeks were treated with cistanches decoction for 6 weeks. Urinary 17-hydroxy cortisol, urine creatinine, urine osmolality value content, and aquaporin-1 mRNA and protein expressions in the lung, spleen and kidney tissues were detected after the treatment.</p><p><b>RESULTS</b>Treatment with adenine induced Kidney Yang Deficiency in rats by causing a reduction in urinary 17-hydroxy cortisol, urine creatinine and urine osmolality. Aquaporin-1 mRNA expression in the spleen and kidney were down-regulated after adenine treatment. Compared with the rat models, intervention with cistanche significantly increased aquaporin-1 mRNA expression in the lung and kidney tissues. Adenine resulted in increased aquaporin-1 protein expression in the lung, spleen and kidney of the rats, while cistanche intervention lowered its expression in lung and kidney tissues.</p><p><b>CONCLUSION</b>The lung, spleen, kidneys are involved in water metabolism, and aquaporin-1 is one of its molecular basis. Cistanche can increase aquaporin-1 expressions, which is also regulated by other factors.</p>
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Animaux , Mâle , Rats , Adénine , Pharmacologie , Aquaporine-1 , Métabolisme , Cistanche , Chimie , Rein , Métabolisme , Poumon , Métabolisme , Médecine traditionnelle chinoise , Rat Wistar , Rate , Métabolisme , Déficit du Yang , MétabolismeRÉSUMÉ
Objective To evaluate the preventive effect of compound matrine injection on hepatic lesion caused by chemotherapy. Methods 178 patients after gastric and colorectal cancer resection were enrolled into three groups randomly. 56 patients in group A received MFOLFOX6 regimen treatment only, 62 patients in group B received both normal treatment and combined compound matrine injection,60 patients in group C received both normal treatment and glutathione. The change of liver function were observed. Results There was no the hepatotoxicity of Ⅲ-Ⅳ degree in all groups;the incidence of bilirubin and transaminase increasing in group B and C was significantly lower than that group A(P <0.05), but the incidence of ALP/GGT increasing showing no significant difference among the three groups; 72.7 % of the incidence of hepatic lesion in group A happened firstly before the seventh cycle,it was 27.3 % and 33.3 % respectively in group B and group C, the time of the emerging of hepatotoxicity in group B and C was markedly delayed than that group A (P <0.05); there was not significant difference between group B and group C in both bilirubin and transaminase increasing and the time of the emerging of hepatotoxicity (P >0.05). Conclusion Compound matrine injection can prevent and postpone the happening of hepatic lesion caused by adjuvant chemotherapy after digestive tract cancer resection, The result is equal to glutathione. Compound matrine injection also has antineoplastic effects, so the clinical superiority is more obvious.
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Objective To investigate the abnormality of electrocardiography (ECG) of patients with neoplasms after different chemotherapy. Methods The abnormality of ECG data in 632 patients with neoplasms after different chemotherapy in our hospital was analyzed. Results The changes of ST-T was found in 352 cases (55.70 %), arrhythmia in 197 cases (31.2 %), low QRS in 91 cases (14.4 %), cardiac infarction in 2 cases (0.32 %). Conclusion Different chemotherapy can induce abnormality of ECG, especially combined with anthracycline. Pay attention to potential cardiotoxicity of chemotherapeutics and do regular examination of ECG is very important.