ObjectiveTo explore the effectiveness of feedforward control mode on improving occupational burnout among operating room nurses through theoretical research and clinical practice， with a view to promoting their physical and mental health and enhancing the quality of surgical nursing. MethodsA total of 440 operating room nurses from different regions， scales， and nursing experiences in Shaanxi Province from November 2023 to December 2023 were randomly divided into an experimental group and a control group， with 220 nurses in each group. While the control group received routine intervention measures， the experimental group introduced a feedforward control mode based on the control group， with “emotional exhaustion，” “depersonalization，”and“personal achievement” as observation indicators. ResultsThe incidence of occupational burnout in the experimental group was 11.4%， while that in the control group was 20.0%. The experimental group showed a significantly lower incidence than the control group （P=0.013）. ConclusionThe feedforward control mode can significantly alleviate nurses’ sense of job burnout， promote the improvement of surgical nursing quality， as well as continuously improve the scientific rigor， advancement， and humanistic nature of nursing services， which is conducive to building a harmonious and efficient nursing team. The spirit of teamwork， reflected in mutual support， mutual trust， and joint efforts for surgical success and patient health， has become an important component of nurses’ professional ethics.

Objective To analyze the difference of diseases between the coal mine workers and the general population inpatients by the disease spectrum in Datong City. Methods A total of 282 639 hospitalized patients in Datong City in 2023 were included as the study subjects. Participants were divided into a general population group and a coal mine workers group based on health insurance types, with 247 897 and 34 742 cases, respectively. The disease spectrum of participants in both groups was coded and analyzed according to the International Statistical Classification of Diseases and Related Health Problems, 10th Revision (ICD-10). The standardized constituent ratios of disease categories were calculated and compared between the two groups. Results Patients aged 60-<70 years had the largest standardized proportion in both cohorts (29.02% in the general population group and 33.08% in coal mine workers group). Circulatory system diseases had the highest standardized proportion in both groups. Within the top six disease categories ranked by standardized composition ratio in the coal mine workers, three demonstrated a higher burden, including neoplasms (C00-D48), symptoms, signs and abnormal clinical/laboratory findings not elsewhere classified (R00-R99), and factors influencing health status/contact with health services (Z00-Z99), compared with the general population (11.82% vs 10.44%, 12.99% vs 8.03%, and 6.17% vs 2.04%, respectively). In both groups, male workers had higher standardized constituent ratios of circulatory, respiratory, and digestive system diseases than females (coal mine workers group, 19.53% vs 14.31%, 13.56% vs 9.10%, 10.61% vs 8.43%; general population group, 26.15% vs 22.42%, 15.45% vs 11.87%, 11.52% vs 10.41%). Conversely, the ratios for conditions classified under symptoms, signs and abnormal clinical/laboratory findings not elsewhere classified (R00-R99). and factors influencing health status/contact with health services (Z00-Z99) were higher in females than males (coal mine workers group, 13.31% vs 12.68%, 7.26% vs 5.13%; general population group, 8.91% vs 7.18%, 2.35% vs 1.74%). Mental and behavioral disorders (F00-F99) were most prevalent in the 22-<50-year age group in the general population (9.92%) and in the 50-<60-year age group in coal mine workers (8.58%). The standardized proportion of respiratory system diseases ranked first in≥80-year age workers in general population group and coal mine workers group (29.54% and 26.46%, respectively). Regarding specific malignancies, unspecified malignant neoplasm of the bronchus or lung was the most common cancer among males in both groups (3.44% and 3.62%). Among females, the standardized proportion of unspecified malignant neoplasm of breast was higher in coal mine workers group than in the general population group (2.60% vs 2.09%). Conclusion Neoplasms, abnormal symptoms, and mental health disorders should be prioritized in disease prevention strategies for coal mine workers. Greater attention should be paid to mental health screening in younger populations, and medical resource allocation should be optimized according to sex-specific high-incidence cancers.

Background::The correlation between metals and hypertension, such as sodium, zinc, potassium, and magnesium, has been confirmed, while the relationship between aluminum and hypertension is not very clear. This study aimed to evaluate the correlation between plasma aluminum and hypertension in electrolytic aluminum workers by the Bayesian networks (BN).Methods::In 2019, 476 male workers in an aluminum factory were investigated. The plasma aluminum concentration of workers was measured by inductively coupled plasma mass spectrometry. The influencing factors on the prevalence of hypertension were analyzed by the BN.Results::The prevalence of hypertension was 23.9% in 476 male workers. The risk of hypertension from plasma aluminum in the Q2, Q3, and Q4 groups was 5.20 (1.90-14.25), 6.92 (2.51-19.08), and 7.33 (2.69-20.01), respectively, compared with that in the Q1 group. The risk of hypertension from the duration of exposure to aluminum of >10 years was 2.23 (1.09-4.57), compared without aluminum exposure. Area under the curve was 0.80 of plasma aluminum and the duration of exposure to aluminum was based on covariates, indicating that aluminum exposure had important predictive value in the prevalence of hypertension in the occupational population. The results of the study using the BN model showed that if the plasma aluminum of all participants was higher than Q4 (≥47.86 μg/L) and the participants were drinking, smoking, diabetes, central obesity, dyslipidemia, and aged >50 years, the proportion of hypertension was 71.2%.Conclusions::The prevalence of hypertension increased significantly with the increase of plasma aluminum level.

Background::The correlation between metals and hypertension, such as sodium, zinc, potassium, and magnesium, has been confirmed, while the relationship between aluminum and hypertension is not very clear. This study aimed to evaluate the correlation between plasma aluminum and hypertension in electrolytic aluminum workers by the Bayesian networks (BN).Methods::In 2019, 476 male workers in an aluminum factory were investigated. The plasma aluminum concentration of workers was measured by inductively coupled plasma mass spectrometry. The influencing factors on the prevalence of hypertension were analyzed by the BN.Results::The prevalence of hypertension was 23.9% in 476 male workers. The risk of hypertension from plasma aluminum in the Q2, Q3, and Q4 groups was 5.20 (1.90-14.25), 6.92 (2.51-19.08), and 7.33 (2.69-20.01), respectively, compared with that in the Q1 group. The risk of hypertension from the duration of exposure to aluminum of >10 years was 2.23 (1.09-4.57), compared without aluminum exposure. Area under the curve was 0.80 of plasma aluminum and the duration of exposure to aluminum was based on covariates, indicating that aluminum exposure had important predictive value in the prevalence of hypertension in the occupational population. The results of the study using the BN model showed that if the plasma aluminum of all participants was higher than Q4 (≥47.86 μg/L) and the participants were drinking, smoking, diabetes, central obesity, dyslipidemia, and aged >50 years, the proportion of hypertension was 71.2%.Conclusions::The prevalence of hypertension increased significantly with the increase of plasma aluminum level.

Objective:To explore the clinical efficacy of radical surgery after successful conversion therapy for liver cancer.Methods:We retrospectively analyzed the clinical data of 10 patients with liver cancer who underwent successful conversion therapy and subsequent radical surgery in Peking University People's Hospital from Nov 2019 to Dec 2021.Results:The median age of the 10 patients was 64 (51.25,68.50) years. The median number of conversion therapy cycles was 11 (4.75,25.00). No serious adverse reactions were found in the patients during conversion therapy. After conversion therapy, 8 patients underwent partial hepatectomy, and 2 patients underwent radiofrequency ablation. Postoperative complications occurred in 4 patients. All complications were classified as Clavien-Dindo grade Ⅰ or Ⅱ. The median follow-up time was 13 (9.75,49.75) weeks. Three patients had tumor recurrence after surgery. Among the patients with tumor recurrence, 1 patient died of liver failure.Conclusions:Conversion therapy is an effective treatment for patients with clinically unresectable liver cancer. The incidence of serious adverse reactions in conversion therapy for liver cancer is low. The radical surgery can be safely performed in patients with good general condition and liver function. Radical surgery after conversion therapy can prolong the survival time of patients for unresectable liver cancer.

Objective:To comparative analyze mammographic and clinicopathological findings of ductal carcinoma in situ (DCIS) and DCIS with microinvasion (DCISM), and to investigate the predictive factors for DCISM.Methods:A total of 626 patients with DCISM and DCIS confirmed by surgery and pathology in the Affiliated Hospital of Qingdao University from January 2016 to July 2020 were collected and underwent preoperative mammography. The X-ray findings of DCISM and DCIS patients were classified and diagnosed according to the Breast Imaging Reporting and Data System (BI-RADS) criteria. The differences in clinicopathological and radiographic findings between DCISM and DCIS patients were analyzed using χ 2 test or Fisher exact test. The risk factors of DCISM were evaluated by using univariate and multivariate binary logistic regression analysis. Results:Among the 626 cases, 171 were diagnosed as DCISM, 455 were diagnosed as DCIS. Large diameter (≥2.7 cm), high nuclear grade, comedo type, axillary lymph node metastasis, high Ki67 proliferation index, negativity of estrogen receptor and progesterone receptor were found to be predictors of DCISM in the univariate analysis (all P<0.05). And large diameter (≥2.7 cm)(OR 2.229,95% CI 1.505-3.301, P<0.001), high nuclear grade(OR 1.711,95%CI 1.018-2.875, P=0.043) and axillary lymph node metastasis(OR 4.140,95% CI 1.342-12.773, P=0.013) were found to be independent predictors of DCISM in the multivariate analysis (all P<0.05). Mammographically, the lesion types, the presence and distribution of calcification were statistically significant between DCIS and DCISM patients (χ 2=17.42, 9.65, 9.10, P<0.05). Up to 17.6% (80/455) of DCIS were occult leisions, and DCISM showed more lesions with calcification in mass, asymmetry, and architectural distortion (49.1%, 84/171). Grouped calcifications were usually associated with DCIS (41.5%, 120/289), while regional calcification were commonly found in DCISM (35.9%, 47/131). Conclusions:Lesions with calcification and regional calcification were more likely associated with DCISM on mammography. Large diameter (≥2.7 cm), high nuclear grade and axillary lymph node metastasis were found to be independent predictors of DCISM.

Objective:To explore the occurrence and influencing factors of perimenopausal syndrome among Han, Hui and Tibetan women in Gansu Province.Methods:A stratified cluster sampling method was used to select 7290 women aged 40-55 years as the research subjects for cross-sectional survey. The questionnaire was used to investigate demographic characteristics, marriage and childbearing menstrual history, and the modified Kupperman score was used to investigate the symptoms related to perimenopausal syndrome. The data were statistically analyzed using SPSS20.0 software.Results:The natural menopausal age of women in Gansu Province was (47.43±3.99) years old, Hui women had the earliest age of menopause (47.08±4.29). There were statistically significant differences in occupation, education level and residence among the three ethnic groups ( P<0.001, P=0.001, P=0.005). The incidence of perimenopausal syndrome was 58.85% (246/418) for Hui, 44.16% (136/308) for Tibetans, and 41.06% (2695/6564) for Hans. The incidence of perimenopausal syndrome and the grade of related symptoms were significantly different among the three ethnic groups (all P<0.001). Han women had the highest proportion of mild symptoms, while Hui women and Tibetan women had the highest proportion of moderate symptoms. The differences of the incidence of mild and severe symptoms among the three ethnic groups were statistically significant (all P<0.001). Logistic regression analysis showed that engaging in heavy physical labor is a common risk factor for the incidence of perimenopausal syndrome in the three ethnic groups. Conclusion:The prevention and treatment of perimenopausal syndrome can be carried out from the following aspects: promoting economic development, improving living conditions, changing life and work patterns, increasing investment in education, medical and health care, and strengthening knowledge popularization.

Objective:To explore the occurrence and influencing factors of perimenopausal syndrome among Han, Hui and Tibetan women in Gansu Province.Methods:A stratified cluster sampling method was used to select 7290 women aged 40-55 years as the research subjects for cross-sectional survey. The questionnaire was used to investigate demographic characteristics, marriage and childbearing menstrual history, and the modified Kupperman score was used to investigate the symptoms related to perimenopausal syndrome. The data were statistically analyzed using SPSS20.0 software.Results:The natural menopausal age of women in Gansu Province was (47.43±3.99) years old, Hui women had the earliest age of menopause (47.08±4.29). There were statistically significant differences in occupation, education level and residence among the three ethnic groups ( P<0.001, P=0.001, P=0.005). The incidence of perimenopausal syndrome was 58.85% (246/418) for Hui, 44.16% (136/308) for Tibetans, and 41.06% (2695/6564) for Hans. The incidence of perimenopausal syndrome and the grade of related symptoms were significantly different among the three ethnic groups (all P<0.001). Han women had the highest proportion of mild symptoms, while Hui women and Tibetan women had the highest proportion of moderate symptoms. The differences of the incidence of mild and severe symptoms among the three ethnic groups were statistically significant (all P<0.001). Logistic regression analysis showed that engaging in heavy physical labor is a common risk factor for the incidence of perimenopausal syndrome in the three ethnic groups. Conclusion:The prevention and treatment of perimenopausal syndrome can be carried out from the following aspects: promoting economic development, improving living conditions, changing life and work patterns, increasing investment in education, medical and health care, and strengthening knowledge popularization.

Objective:To systematically evaluate the efficacy of hyperbaric oxygen (HBO) combined with comentional drugs in the treatment of angina pectoris caused by coronary heart disease with meta-analysis.Methods:The data on clinical randomized controlled trials (RCTs) of HBO combined with conventional drugs in the treatment of angina pectoris due to coronary heart disease in Cochrane Library, Medline, Embase, Wanfang Data, Cqvip, China National Knowledge Infrastructure (CNKI) were collected, and the time period was from the respective founding day of the above databases to October 2020. Three researchers independently screened the collected RCTs, extracted relevant data, and evaluated the quality of the trials. RevMan 5.4 software was used for meta-analysis.Results:A total of 11 RCTs were included in this study. Meta-analysis results showed that the HBO group was better than the control group in terms of total clinical effectiveness, alleviation of angina symptoms, and improvement in ECG performance.Conclusion:HBO combined with conventional drugs can better alleviate the symptoms of angina pectoris due to coronary heart disease and improve their ECG performance. In the future, high-quality RCTs need to be carried out to verify the conclusion of this study.

Objective:To systematically evaluate the efficacy of hyperbaric oxygen (HBO) combined with comentional drugs in the treatment of angina pectoris caused by coronary heart disease with meta-analysis.Methods:The data on clinical randomized controlled trials (RCTs) of HBO combined with conventional drugs in the treatment of angina pectoris due to coronary heart disease in Cochrane Library, Medline, Embase, Wanfang Data, Cqvip, China National Knowledge Infrastructure (CNKI) were collected, and the time period was from the respective founding day of the above databases to October 2020. Three researchers independently screened the collected RCTs, extracted relevant data, and evaluated the quality of the trials. RevMan 5.4 software was used for meta-analysis.Results:A total of 11 RCTs were included in this study. Meta-analysis results showed that the HBO group was better than the control group in terms of total clinical effectiveness, alleviation of angina symptoms, and improvement in ECG performance.Conclusion:HBO combined with conventional drugs can better alleviate the symptoms of angina pectoris due to coronary heart disease and improve their ECG performance. In the future, high-quality RCTs need to be carried out to verify the conclusion of this study.