1.Analysis on the clinical application effects and development of intelligent control system for airbag pressure of tracheal catheter
Guangchao YUAN ; Siyuan HA ; Fang WANG ; Weiyi ZHANG ; Wei XIA ; Junyan TAN ; Yijuan DING ; Luyan HUANG ; Min LEI
China Medical Equipment 2025;22(7):87-91
Objective:To analyze the research and development of control system for airbag pressure of intelligent tracheal catheter,and its application effect in clinical practice.Methods:The hospital designed an intelligent self-adaptive control system for cuff pressure of tracheal catheter,which can rationally apply main components such as single chip microcomputer,display screen,control panel,pressure monitoring module,inflation device and solenoid valve,etc..This control system connected the measuring module of pressure through single chip microcomputer,so as to continuously detect the airbag pressure of tracheal catheter.An inflation and deflation algorithm was independently researched and developed to control air pump or solenoid valve to inject or release part of the gas to the airbag,so as to achieve intelligent control for the pressure of airbag.Sixty patients underwent endotracheal intubation who admitted to the department of general surgery of Wuhan Hospital of Traditional Chinese Medicine from January 2022 to January 2023 were selected as the study objects,and they were divided into control group(n=30)and observation group(n=30)according to random number table method.The cuff pressure of endotracheal intubation of patients in control group were managed by conventional method.The intelligent adaptive control system was adopted to manage the cuff pressure of endotracheal intubation for patients in the observation group.The complications,compliance rate of airbag pressure,the instantaneous maximum value of airbag pressure during sputum aspiration,insertion of gastric tube,and turning over of body were compared between the two groups after intubation.Results:The incidence of complication included cough,trachyphonia,dysphagia and bloody sputum after tracheal intubation in the observation group were 6.66%,which was significantly lower than 33.33%in the control group,and the difference was statistically significant(x2=6.667,P<0.05).The compliance rate of the pressure(25-30cmH2O)of airbag in the control group was 92.83%,which was significantly lower than 97.78%in the observation group,and the difference was statistically significant(x2=14.698,P<0.05).The instantaneous maximum values of airbag pressure during sputum aspiration,insertion of gastric tube and turning over were(28.24±3.65)cmH2O,(27.98±4.25)cmH2O and(28.65±4.87)cmH2O in observation group,respectively,which were significantly lower than those in control group,and the differences were significant(t=17.930,19.208,16.485,P<0.05).Conclusion:The application of intelligent adaptive control system for cuff pressure of tracheal catheter can maintain the airbag pressure of tracheal catheter at normal level(20-30 cmH2O),and reduce complications,and improve the compliance rate of airbag pressure.
2.Correlation between the expression of fucosylated proteins in colonic epithelium and the clinical efficacy of ustekinumab in patients with Crohn′s disease
Ye FANG ; Luyan FANG ; Jiahao LU ; Guolong MA ; Yuan XU ; Yi JIANG
Chinese Journal of Digestion 2025;45(6):376-383
Objective:To explore the correlation between the expression of fucosylated proteins in colonic epithelium (abbreviated as colonic fucosylation level) and the clinical efficacy of ustekinumab (UST) in patients with Crohn′s disease (CD).Methods:From January 2022 to November 2023, CD patients who were hospitalized at Department of Gastroenterology, the Second Affiliated Hospital of Wenzhou Medical University and received the treatment of UST ≥24 weeks (CD group) and patients with colon polyps (colon polyps control group) were retrospectively enrolled. Baseline data of the patients were collected. Harvey-Bradshaw index for Crohn′s disease (HBI) and simple endoscopic score for Crohn′s disease (SES-CD) were applied to assess clinical and endoscopic disease activities, respectively. The colonic fucosylation level was detected by immunofluorescence staining in the CD group at weeks 0 and 24 after UST treatment and at diagnosis in the colon polyps control group (baseline). The levels of C-reactive protein (CRP) and fecal calprotectin (FC) were also assessed. A linear regression model was performed to analyze the correlation between the baseline colonic fucosylation levels and the clinical characteristics in CD patients. At week 24, the clinical efficacy of UST treatment was evaluated, clinical remission was defined as HBI ≤4, biological remission was defined as CRP<5 mg/L and(or) FC≤250 μg/g, and mucosal healing was defined as SES-CD≤2.Based on the efficacy of UST treatment, the CD group was further divided into clinical remission subgroup and clinical non-remission subgroup, biological remission subgroup and biological non-remission subgroup, and mucosal healing subgroup and mucosal non-healing subgroup. The differences in colonic fucosylation level between the subgroups were compared. Multivariate binary logistic regression model was used to analyze the impacts of the baseline clinical characteristics on clinical efficacy at week 24 of UST treatment in the CD group. Mann-Whitney U test and Wilcoxon matched-pair test were used for statistical analysis. Results:A total of 60 patients in the CD group and 72 patients in the colon polyps control group were enrolled. The baseline colonic fucosylation level of CD group was lower than that of the colon polyps control group (25.81 (15.55, 29.70) vs. 29.57 (27.32, 32.96)), and the difference was statistically significant ( Z=-5.02, P<0.001). The results of multiple linear regression analysis showed that the baseline colonic fucosylation level of the CD group was negatively correlated with the baseline FC level ( β=-13.80, 95% confidence interval (95% CI): -20.59 to -7.00, P<0.001). The colonic fucosylation level at week 24 of the CD group was higher than that at week 0 (28.53 (24.54, 32.32) vs. 25.81 (15.55, 29.70)), and the difference was statistically significant ( Z=4.75, P<0.001). The colonic fucosylation levels at week 24 of the clinical remission subgroup, the biological remission subgroup, and the mucosal healing subgroup were higher than those of the clinical non-remission subgroup, the biological non-remission subgroup, and the mucosal non-healing subgroup, respectively (29.1 (27.9, 33.0) vs. 19.6 (16.3, 31.9), 29.5 (27.3, 33.0) vs. 19.6 (17.5, 27.5), 29.6 (28.4, 33.0) vs. 23.4 (17.5, 28.4)), and the differences were statistically significant ( Z=3.35, 3.78, 4.63; all P<0.001). The results of multivariate binary logistic regression analysis showed that the baseline colonic fucosylation level was the independent influencing factor of the rate of clinical remission, biological remission and mucosal healing at week 24 after UST treatment in the CD group ( OR=1.30 (95% CI: 1.05 to 1.61), 1.24 (95% CI: 1.01 to 1.52), 1.57 (95% CI: 1.16 to 2.12); P=0.018, 0.037 and 0.003). Conclusion:The baseline level of colonic fucosylation in CD patients is correlated with the clinical efficacy at week 24 of UST treatment, suggesting its potential utility in predicting the efficacy of UST treatment in CD patients.
3.Analysis on the clinical application effects and development of intelligent control system for airbag pressure of tracheal catheter
Guangchao YUAN ; Siyuan HA ; Fang WANG ; Weiyi ZHANG ; Wei XIA ; Junyan TAN ; Yijuan DING ; Luyan HUANG ; Min LEI
China Medical Equipment 2025;22(7):87-91
Objective:To analyze the research and development of control system for airbag pressure of intelligent tracheal catheter,and its application effect in clinical practice.Methods:The hospital designed an intelligent self-adaptive control system for cuff pressure of tracheal catheter,which can rationally apply main components such as single chip microcomputer,display screen,control panel,pressure monitoring module,inflation device and solenoid valve,etc..This control system connected the measuring module of pressure through single chip microcomputer,so as to continuously detect the airbag pressure of tracheal catheter.An inflation and deflation algorithm was independently researched and developed to control air pump or solenoid valve to inject or release part of the gas to the airbag,so as to achieve intelligent control for the pressure of airbag.Sixty patients underwent endotracheal intubation who admitted to the department of general surgery of Wuhan Hospital of Traditional Chinese Medicine from January 2022 to January 2023 were selected as the study objects,and they were divided into control group(n=30)and observation group(n=30)according to random number table method.The cuff pressure of endotracheal intubation of patients in control group were managed by conventional method.The intelligent adaptive control system was adopted to manage the cuff pressure of endotracheal intubation for patients in the observation group.The complications,compliance rate of airbag pressure,the instantaneous maximum value of airbag pressure during sputum aspiration,insertion of gastric tube,and turning over of body were compared between the two groups after intubation.Results:The incidence of complication included cough,trachyphonia,dysphagia and bloody sputum after tracheal intubation in the observation group were 6.66%,which was significantly lower than 33.33%in the control group,and the difference was statistically significant(x2=6.667,P<0.05).The compliance rate of the pressure(25-30cmH2O)of airbag in the control group was 92.83%,which was significantly lower than 97.78%in the observation group,and the difference was statistically significant(x2=14.698,P<0.05).The instantaneous maximum values of airbag pressure during sputum aspiration,insertion of gastric tube and turning over were(28.24±3.65)cmH2O,(27.98±4.25)cmH2O and(28.65±4.87)cmH2O in observation group,respectively,which were significantly lower than those in control group,and the differences were significant(t=17.930,19.208,16.485,P<0.05).Conclusion:The application of intelligent adaptive control system for cuff pressure of tracheal catheter can maintain the airbag pressure of tracheal catheter at normal level(20-30 cmH2O),and reduce complications,and improve the compliance rate of airbag pressure.
4.Correlation between the expression of fucosylated proteins in colonic epithelium and the clinical efficacy of ustekinumab in patients with Crohn′s disease
Ye FANG ; Luyan FANG ; Jiahao LU ; Guolong MA ; Yuan XU ; Yi JIANG
Chinese Journal of Digestion 2025;45(6):376-383
Objective:To explore the correlation between the expression of fucosylated proteins in colonic epithelium (abbreviated as colonic fucosylation level) and the clinical efficacy of ustekinumab (UST) in patients with Crohn′s disease (CD).Methods:From January 2022 to November 2023, CD patients who were hospitalized at Department of Gastroenterology, the Second Affiliated Hospital of Wenzhou Medical University and received the treatment of UST ≥24 weeks (CD group) and patients with colon polyps (colon polyps control group) were retrospectively enrolled. Baseline data of the patients were collected. Harvey-Bradshaw index for Crohn′s disease (HBI) and simple endoscopic score for Crohn′s disease (SES-CD) were applied to assess clinical and endoscopic disease activities, respectively. The colonic fucosylation level was detected by immunofluorescence staining in the CD group at weeks 0 and 24 after UST treatment and at diagnosis in the colon polyps control group (baseline). The levels of C-reactive protein (CRP) and fecal calprotectin (FC) were also assessed. A linear regression model was performed to analyze the correlation between the baseline colonic fucosylation levels and the clinical characteristics in CD patients. At week 24, the clinical efficacy of UST treatment was evaluated, clinical remission was defined as HBI ≤4, biological remission was defined as CRP<5 mg/L and(or) FC≤250 μg/g, and mucosal healing was defined as SES-CD≤2.Based on the efficacy of UST treatment, the CD group was further divided into clinical remission subgroup and clinical non-remission subgroup, biological remission subgroup and biological non-remission subgroup, and mucosal healing subgroup and mucosal non-healing subgroup. The differences in colonic fucosylation level between the subgroups were compared. Multivariate binary logistic regression model was used to analyze the impacts of the baseline clinical characteristics on clinical efficacy at week 24 of UST treatment in the CD group. Mann-Whitney U test and Wilcoxon matched-pair test were used for statistical analysis. Results:A total of 60 patients in the CD group and 72 patients in the colon polyps control group were enrolled. The baseline colonic fucosylation level of CD group was lower than that of the colon polyps control group (25.81 (15.55, 29.70) vs. 29.57 (27.32, 32.96)), and the difference was statistically significant ( Z=-5.02, P<0.001). The results of multiple linear regression analysis showed that the baseline colonic fucosylation level of the CD group was negatively correlated with the baseline FC level ( β=-13.80, 95% confidence interval (95% CI): -20.59 to -7.00, P<0.001). The colonic fucosylation level at week 24 of the CD group was higher than that at week 0 (28.53 (24.54, 32.32) vs. 25.81 (15.55, 29.70)), and the difference was statistically significant ( Z=4.75, P<0.001). The colonic fucosylation levels at week 24 of the clinical remission subgroup, the biological remission subgroup, and the mucosal healing subgroup were higher than those of the clinical non-remission subgroup, the biological non-remission subgroup, and the mucosal non-healing subgroup, respectively (29.1 (27.9, 33.0) vs. 19.6 (16.3, 31.9), 29.5 (27.3, 33.0) vs. 19.6 (17.5, 27.5), 29.6 (28.4, 33.0) vs. 23.4 (17.5, 28.4)), and the differences were statistically significant ( Z=3.35, 3.78, 4.63; all P<0.001). The results of multivariate binary logistic regression analysis showed that the baseline colonic fucosylation level was the independent influencing factor of the rate of clinical remission, biological remission and mucosal healing at week 24 after UST treatment in the CD group ( OR=1.30 (95% CI: 1.05 to 1.61), 1.24 (95% CI: 1.01 to 1.52), 1.57 (95% CI: 1.16 to 2.12); P=0.018, 0.037 and 0.003). Conclusion:The baseline level of colonic fucosylation in CD patients is correlated with the clinical efficacy at week 24 of UST treatment, suggesting its potential utility in predicting the efficacy of UST treatment in CD patients.
5.Management strategy study on hypertonic glucose injection (≥ 20%) based on failure mode and effect analysis
Yiping WANG ; Kan QIN ; Fang LIU ; Siyuan CHEN ; Luyan FAN
Adverse Drug Reactions Journal 2018;20(5):340-345
Objective To analyze the risks of hypertonic glucose injection (20%) (hypertonic glucose) in clinical application using failure mode and effect analysis (FMEA) method and improve the relevant management measures.Methods A study group on risk prevention strategies of hypertonic glucose was established in the First People's Hospital of Hefei.Domestic and foreign literature on medication error cases,preventive measures or management strategies,and data from questionnaires and on-the-spot investigations were collected.The failure modes in the process of hypertonic glucose application were analyzed and assessed.Severity (S),frequency of occurrence (O),and likelihood of detection (D) of the risks related to these failure modes were scored and the risk priority numbers (RPN) were determined.The failure modes with higher RPN were screened out and the corresponding prevention strategies were formulated.The incidence of medication errors and potential hazards,cognition rate of knowledge on drugs,qualification rate of drug storage,and satisfaction rate for management measures before and after the improvement were analyzed comparatively.Results According to the results from literature search,questionnaires,and on-the-spot investigations,a total of 24 failure modes were found in the 6 links relevant with hypertonic glucose application in clinical,which included links of prescription writing and delivery,pharmacist dispensing,nurse dispensing,post-administration monitoring,drug management,and information technology.Ranking the RPN from high to low,7 major failure modes with higher RPN were selected from the 24 failure modes,including the existence of drugs with similar name and drugs with similar package,wrong drug dispensing,absence of post-administration monitoring,lack of marked labels for drugs,garbles caused by lack of medication knowledge,and untimely record and report of medication errors.The incidences of medication errors and potential safety hazards before and after management improvement were 3.2% (7/216) and 0.4% (1/234),respectively and the difference had no statistical significance (P =0.058).The average cognitive rates of physicians,nurses and pharmacists before and after the improvement were 65.2% (15/23),54.2% (13/24),67.9% (19/28) and 95.8% (23/24),91.7% (22/24),95.5 % (21/22),respectively and the differences were statistically significant (P 50.05 for all).The qualification rates of drug storage before and after management improvement were 70.2% (151/215) and 98.7% (230/ 233),respectively and the difference was statistically significant (P 5 0.05).The average satisfaction degrees of medical staff with hyperosmotic glucose management were 81.3% (61/75) and 95.7% (65/70),respectively before and after the management improvement and the difference was statistically significant (P 5 0.05).Conclusion Failure modes in the process of hypertonic glucose use can be effectively identified using the FMEA method,and the risk events can be effectively reduced after the corresponding improvement measures.
6.Management strategy study on hypertonic glucose injection (≥ 20%) based on failure mode and effect analysis
Yiping WANG ; Kan QIN ; Fang LIU ; Siyuan CHEN ; Luyan FAN
Adverse Drug Reactions Journal 2018;20(5):340-345
Objective To analyze the risks of hypertonic glucose injection (20%) (hypertonic glucose) in clinical application using failure mode and effect analysis (FMEA) method and improve the relevant management measures.Methods A study group on risk prevention strategies of hypertonic glucose was established in the First People's Hospital of Hefei.Domestic and foreign literature on medication error cases,preventive measures or management strategies,and data from questionnaires and on-the-spot investigations were collected.The failure modes in the process of hypertonic glucose application were analyzed and assessed.Severity (S),frequency of occurrence (O),and likelihood of detection (D) of the risks related to these failure modes were scored and the risk priority numbers (RPN) were determined.The failure modes with higher RPN were screened out and the corresponding prevention strategies were formulated.The incidence of medication errors and potential hazards,cognition rate of knowledge on drugs,qualification rate of drug storage,and satisfaction rate for management measures before and after the improvement were analyzed comparatively.Results According to the results from literature search,questionnaires,and on-the-spot investigations,a total of 24 failure modes were found in the 6 links relevant with hypertonic glucose application in clinical,which included links of prescription writing and delivery,pharmacist dispensing,nurse dispensing,post-administration monitoring,drug management,and information technology.Ranking the RPN from high to low,7 major failure modes with higher RPN were selected from the 24 failure modes,including the existence of drugs with similar name and drugs with similar package,wrong drug dispensing,absence of post-administration monitoring,lack of marked labels for drugs,garbles caused by lack of medication knowledge,and untimely record and report of medication errors.The incidences of medication errors and potential safety hazards before and after management improvement were 3.2% (7/216) and 0.4% (1/234),respectively and the difference had no statistical significance (P =0.058).The average cognitive rates of physicians,nurses and pharmacists before and after the improvement were 65.2% (15/23),54.2% (13/24),67.9% (19/28) and 95.8% (23/24),91.7% (22/24),95.5 % (21/22),respectively and the differences were statistically significant (P 50.05 for all).The qualification rates of drug storage before and after management improvement were 70.2% (151/215) and 98.7% (230/ 233),respectively and the difference was statistically significant (P 5 0.05).The average satisfaction degrees of medical staff with hyperosmotic glucose management were 81.3% (61/75) and 95.7% (65/70),respectively before and after the management improvement and the difference was statistically significant (P 5 0.05).Conclusion Failure modes in the process of hypertonic glucose use can be effectively identified using the FMEA method,and the risk events can be effectively reduced after the corresponding improvement measures.
7.Reflection on the feedback of nurses fostered by Sino-Australia cooperation program
Yuqin PAN ; Luyan FANG ; Tiantian LOU ; Jingchan YAO
Chinese Journal of Practical Nursing 2012;13(13):4-7
Objective Feedback of 35 graduates from a Sino-Australia cooperation program was investigated at 1 -year fulfillment of clinical practice,and reflect some of the issues in the process of cultivation and utilization of nursing talents from the program. Methods 32 nursing talents from a Sino-Australia cooperation program at 1 -year fulfillment of clinical practice was selected as research object.Self made questionnaires baaed on the goal of the program were used,which included both open and close questions.The investigation results were analyzed. Results The nursing talents considered that the main advantages of the program were as followed:cultivation of their ability in active communication,improving English level,broaden international vision,and internationalization of courses. Conclusions Stratified and individualized teaching strategies need to be implemented.English study and nursing specialty study are to be appropriately combined.Routes of employment should be broadened.In addition,imported courses are to be adjusted according to domestic situation.While attaching importance in teaching,faculty should also emphasize advising.Finally,it is not to be ignored for the hospitals that they are responsible for greater utilization and cultivation of the nurses with both nursing and English ability.
8.Reflection on the Sino-Australia cooperation program based on professional performance appraisal on its
Yuqin PAN ; Luyan FANG ; Tiantian LOU ; Jingchan YAO
Chinese Journal of Hospital Administration 2012;28(1):63-65
Objectives By survey the head nurses or nursing instructors,to know the one year professional performance of nurses graduated from Sino-Australia cooperation program of Jinhua Polytechnic,which can help us to make the educational plan and further cultivation.MethodSelf-composed questionnaire is provided to 32 head nurses or nursing instructors from secondary and tertiary hospitals of Zhejiang province.SPSS 18 is applied for data analysis.ResultThe nurses' performance is generally consistent to the objectives ofthe Sino-Australia nursing program and the rating scores are normally distributed. There is no significant difference in the average performance of nurses comparing to a test value of 71,P≤0.08.The scores of professional quality,nursing competency,English ability,humanitarian caring,active learning,team work and adaptability to clinical responsibilities were especially well rated.ConclusionResults indicated that the school should appropriately adjust the direction for students' employment,consider to localize the nursing courses introduced from foreign countries.It is necessary for the hospitals to ponder on how to further cultivate and utilize the English competency of the nurses,and use the individualized strategies to retain the nurses who are proficient in English.
9.Fluorescence spectra and test application study on the interaction of fluorescein and bovine serum albumin.
Xun HUANG ; Ai'ming SUN ; Xueqin DING ; Xiucheng XU ; Luyan FANG
Journal of Biomedical Engineering 2006;23(6):1325-1327
A fluorescence method is found for determination of bovine serum albumin (BSA). The method is based on the interaction of fluorescein with BSA to form a complex in Tris-HCl buffer of pH 2.2. The complex exitation wavelength is 467 nm, the emission wavelength is 515 nm. The linear measurement rang is between 1.8-500 mg/L for BSA, F = 26.776 C + 2.8082, r = 0.9999. This method is sensitive,steady,and low cost for determination of BSA.
Animals
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Cattle
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Drug Interactions
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Fluorescein
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chemistry
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Serum Albumin, Bovine
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analysis
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Spectrometry, Fluorescence
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methods

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