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Objective:To explore the effect of teaching based on cognitive load theory (CLT) in the teaching of intensive care medicine.Methods:A total of 70 practical nursing students studying intensive care medicine in the Affiliated Hospital of Jining Medical College from January 2019 to September 2020 were taken as the research objects. The nursing students who practiced from January 2019 to November 2019 were included in the control group ( n=35), and the students from December 2019 to September 2020 were included in the observation group ( n=35). The control group was given routine teaching, and the observation group was given CLT-based teaching. The differences of training load (clinical nursing student training load survey scale), empathy ability (Jefferson empathy scale for nursing students in Chinese version), self-learning ability (self-learning ability evaluation scale for nursing students) and critical medical nursing professional ability (comprehensive evaluation scale for core competence of intensive care nursing students) were compared between the two groups at the end of teaching. Chi-square test and t-test were performed by SPSS 19.0. Results:At the end of teaching, the scores of all dimensions of the observation group's clinical nursing student training load survey scale were lower than those of the control group (all P<0.05); the scores of all dimensions of observation group's nurses Jefferson empathy scale for nursing students in Chinese version, self-learning ability evaluation scale for college nursing students, and comprehensive evaluation scale for core competence of intensive care nursing students were higher than those of the control group (all P<0.05). Conclusion:When CLT-based teaching is applied in the teaching of intensive care medical nursing, it helps to reduce the training load of learners, and promote empathy, independent learning ability, and professional ability of intensive care medical nursing skills.
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Objective To explore the clinical pathological characteristics of breast solid papillary carcino-ma(SPC). Methods The clinical manifestation,pathology morphology,immunohistochemical characteristics and prognosis of 23 cases with SPC was reviewed. Results There were 16 cases with nipple discharge as the chief com-plaint while 7 cases were mass. 10 cases of ultrasonic examination showed 6 cases(60%)were above BI-RADS grade 4 while 8/13 in X-ray examination. In 8 cases of SPC with invasion,5 cases were luminal A and 3 cases were lumi-nal B. There were no significant differences in the mean age,mean diameter of the mass,neuroendocrine markers (CgA and Syn)and proliferation marker Ki67 between in situ SPC group and invasive SPC group(P > 0.05). The difference between P63 and CK5/6 was statistically significant(P = 0.001,P = 0.019). No recurrence was found in 21 patients. Conclusions SPC is a rare type of breast cancer with good prognosis. Imaging and ductosco-py are easy to make under-diagnosis while pathology is likely to make misdiagnosis,therefore clinical pathologists should pay more attention so as to treat it more accurately.
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Purpose To investigate the clinicopathological characteristics and differential diagnosis of spindle cell rhabdomyosarcoma ( SCRM) . Methods Three cases of SCRMs were analyzed by gross examination, microscopy and immunohistochemistry. Relevant lit-eratures were reviewed to summarize the diagnostic features of SCRM and its differential diagnosis. Results All the 3 cases were male infants aged from 2 days to 4 years. 2 cases were located in paratesticular and 1 in back. Tumors were all well-circumscribed but unen-capsulated, with white-gray cut surface, firmed and sized 2. 0 to 6. 0 cm in diameter. Histologically, tumors displayed invasive growth but were well-circumscribed. Tumor cells were spindle to round with eosinophilic cytoplasm and fascicular, storiform, wavy appear-ance. Horizontal structure and striated muscle brood cells were observed in some cells or local regions. A small amount of collagen fi-brils were observed in the mesenchymal components. The nucleus were long or fine wavy with unconspicuous nuclear atypia, mitosis could be occasional observed. Immunohistochemically, tumor cells were positive for vimentin, desmin, myogenin and MyoD1. CK,α-inhabin, AFP, CD34 and S-100 were negative. Conclusions SCRM is a rare and new type of rhabdomyosarcoma that commonly oc-curred in infant. It should be differentiated from other tumors, such as infantile fibromatosis, congenital fibrosarcoma, fibrosarcoma, leiomyosarcoma, triton tumor, malignant melanoma of promoting the fibrous tissues.
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Objective To compare the sensitivity and diagnostic features of mammogram (MG) and magnetic resonance imaging (MRI) on diagnosis of breast ductal carcinoma in situ (DCIS) with or without microinvasion (DCIS-MI).Methods From Jan 2012 to Nov 2013,results of MG and MRI from 72 cases of DCIS or DCIS-MI were retrospectively analyzed.Results The sensitivity of MG was 52.8％ (38/72).The sensitivity of MRI was 87.5％ (63/72),among those 76.2％ (48/63)lesions presented as non-mass-like enhancement.Sensitivity of MRI was significantly higher in DCIS-MI than DCIS (84.6％ vs 100％,P =0.027).Logistic regression analysis showed calcifications was an independent factor influencing the sensitivity of MG (OR =23.785,P ＜ 0.001).Conclusions The sensitivity of MRI is higher than MG for the diagnosis of DCIS and DCIS-MI.