医学教育

结核专科教学医院医学生特征及管理对策的分析

Analysis on the characteristics and management strategies of medical students in teaching hospitals specialized in tuberculosis

:717-722
 
       目的   分析结核专科医院医学生特征及管理配合度影响因素,为进一步提升医学生管理配合提供参考。方法   选择在院511名医学生进行基本情况采集及问卷调查,以问卷打卡次数及打卡时间评估医学生的管理配合度,并进一步分析其影响因素。结果   进修生、研究生及实习生的性别构成比较差异无统计学意义(P>0.05),而年龄、专业及学历比较差异有统计学意义(P<0.05)。医学生的学历与管理配合度无关,而不同年龄、性别、类别、专业医学生的管理配合度比较差异有统计学意义(P<0.05)。结论   针对结核病专科医院医学生的类别、专业、年龄等不同特征,调整专科医院教学管理方法并实行相应的管理措施,对加强专科教学医院的医学生管理工作具有一定的价值。
       Objective  To analyze the characteristics and the influencing factors of management cooperation of medical students in tuberculosis specialized hospital,providing  reference for further improving the cooperation of medical  students in management.Methods  Five hundred and eleven medical students were selected in the specialized hospital for basic information collection and questionnaire survey,the management cooperation of medical students were evaluated from the frequency and time of questionnaire check-in,and the influencing factors were further analyzed.Results  According to the classification as continuing education students,graduate students and interns,there was no statistical difference in gender,but there were  differences in age,major,and education degree(P<0.05).Age,gender,type,and major of the students were all  related to management cooperation(P<0.05),while the education degree was not related to it. Conclusions  According to the different characteristics of medical students in tuberculosis specialized hospitals,such as their categories,majors and ages,adjusting the teaching management methods in specialized hospitals and implementing management measures have certain reference value for strengthening the management of medical students in specialized teaching hospitals.
论著

重症烧伤患者血培养念珠菌阳性的病原学特征

Pathogenic characteristics of Candida positive blood culture in severe burn patients

:197-202
 
       目的   分析重症烧伤患者血培养标本中检测出念珠菌的临床分布,探究重症烧伤患者血流念珠菌感染的病原学特征。方法   选取2012—2023年在广州市红十字会医院住院治疗的重症烧伤患者血培养标本1 148份,分析分离出念珠菌的非重复患者病死率、菌种分布、同时送检的其他类型标本念珠菌培养结果及患者念珠菌血流感染的检出时间与季节分布、抗菌药物使用情况及对常用抗真菌药物的耐药情况。结果  1 148份血培养标本中77份检出真菌,阳性率为6.71%。检出念珠菌感染的非重复患者27例,其中近平滑念珠菌13例,构成比为48.15%、白念珠菌8株,构成比为29.63%。血与静脉导管培养均检出念珠菌的有22例(81.48%);血与伤口分泌物培养圴检出念珠菌的有10例(37.04%);血、静脉导管、伤口分泌物培养圴检出念珠菌的有4例(14.81%)。静脉导管检出念珠菌高于其他类型标本。27例重症烧伤患者血流感染检出念珠菌的时间主要分布在入院后第2~3周、季节主要分布在春夏季。近平滑念珠菌、白念珠菌、热带念珠菌对氟康唑敏感率分别为83.33%、87.50%和75.00%。结论   重症烧伤患者血流近平滑念珠菌检出率最高,发生血流感染时间主要在春夏季及烧伤入院后第2~3周,静脉导管留置是增加重症烧伤患者念珠菌血流感染的因素。我院念珠菌对抗真菌药物具有较高敏感性。
      Objective  To retrospective analyze the clinical distribution of Candida species detected in blood cultures of patients with severe burns and to investigate the etiological characteristics of Candida bloodstream infections in these patients.Methods  A total of 1 148 blood culture specimens were collected from patients with severe burns hospitalized at an institution between 2012 and 2023.Patients data with Candida bloodstream infections isolated from 1 148 blood culture specimens were analyzed,including mortality rates,species distribution,Candida culture results from other simultaneously collected specimen types,and the timing and seasonal distribution of Candida bloodstream infections,the use of antibiotics and  resistance to commonly-used antifungal drugs.Results  A total of 1 148 blood culture samples,77 fungi were separated,resulting in a positive rate of 6.71%.Among the 27 patients with Candida infections,13 cases(48.15%)were caused by Candida parapsilosis and 8 cases(29.63%)by Candida albicans.Candida was isolated from both blood and intravenous catheter cultures in 22 cases,with a positivity  rate of 81.48%.Candida was isolated from both blood and wound secretion cultures in 10 cases(positivity rate of 37.04%),and 4 cases from blood,intravenous catheter and wound secretion cultures(positivity rate of 14.81%).The detection rate of Candidafrom intravenous catheters was higher than that from other specimen types.Candida bloodstream infections were most commonly observed during the 2nd and 3rd week after admission,with a seasonal peak in spring and summer.The  susceptibility  rates of Candida parapsilosis、Candida albicans and Candida tropicalis to fluconazole were 83.33%、87.50% and 75.00%,respectively.Conclusions  The detection rate of Candida parapsilosis in bloodstream infections among patients with severe burns was the highest.These infections predominantly occur during the spring and summer and in the 2nd and 3rd week post-admission.The presence of intravenous catheters significantly contributes to Candida infections.The Candida in the hospital has high sensitivity to antifungal drugs.
论著

恶性中胚叶混合瘤临床病理特征分析

Analysis of clinicopathologic features of malignant mesodermal mixed tumor

:160-165
 
       目的   总结女性生殖系统中恶性中胚叶混合瘤(MMMT)的临床病理特征及预后,分析P53及错配修复蛋白与MMMT发病之间的关系。方法   收集大理大学第一附属医院2015年9月—2022年9月15例经手术切除病理诊断为MMMT的病例,总结临床病理特点、免疫表型(P53、错配修复蛋白等)、治疗方案并随访。结果  15例MMMT原发于子宫10例,卵巢5例。发病年龄范围49~76岁,平均年龄60岁,中位年龄58岁。临床表现为阴道流血或流液,伴或不伴腹痛或盆腔包块。镜下肿瘤均由不同比例的恶性上皮和间叶源性肿瘤构成,P53野生型12例,突变型3例;错配修复蛋白(MSH6、MSH2、MLH1、PMS2)检测存在缺失的有4例。15例患者中均行手术治疗,12例行盆腔淋巴结清扫术,术后辅以放化疗。随访失访2例,死亡4例,复发6例,3例术后无复发和转移。结论   恶性中胚叶混合瘤临床少见,恶性程度高,病理诊断上存在困难,需要辅以免疫组织化学染色,P53及错配修复蛋白缺失与MMMT的发生存在一定关系。治疗上需要手术切除,辅以放化疗。
    Objective  To summarize the clinical and pathological characteristics and prognosis of malignant mesodermal mixed tumor(MMMT)in the female reproductive system,and analyze the relationship between P53 and mismatch  repair proteins and the onset of MMMT.Methods  A total of 15 cases diagnosed with MMMT after surgical resection at the First Affiliated Hospital of Dali University from September 2015 to September 2022 were collected.The clinical and pathological characteristics,immune phenotype(P53,mismatch repair protein,etc. ),treatment plan were summarized.And the patients were followed-up.Results  Ten of 15 cases of MMMT were primary in the uterus and 5 of 10 in the ovaries.The age range of onset was 49 to 76 years old,with an average age of 60 and a median age of 58.Clinical manifestations included vaginal bleeding or fluid discharge,with or without abdominal pain or pelvic masses.Under the microscope,all tumors were composed of malignant epithelial and mesenchymal tumors in different proportions,with 12 cases of P53 wild-type and 3 cases of mutant type.There were 4 cases of missing mismatch repair proteins(MSH6,MSH2,MLH1,PMS2)detected.Among the 15 patients,all underwent surgical treatment,and 12 underwent pelvic lymph node dissection with postoperative adjuvant chemotherapy and radiotherapy.Two cases were lost to follow-up,four cases died,six cases recurred,and three cases had no recurrence or metastasis after surgery.Conclusions  MMMT are rare in clinical practice,with high malignancy and poor prognosis.Pathological diagnosis is difficult,and immunohistochemical staining is needed.The absence of P53 and mismatch repair protein is related to the occurrence of MMMT. Surgical  resection is required for treatment,supplemented by radiotherapy and chemotherapy.
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