Objectives:This study aims to investigate the impact of different Low-Density Lipoprotein cholesterol(LDL-C)levels on progression of intermediate coronary stenosis,and the associated risk factors leading to the progression of such lesions. Methods:Data were collected on 219 consecutive patients admitted at the Fuwai Central China Vascular Hospital from January 2020 to February 2021,underwent angiographic examinations and diagnosed with intermediate coronary stenosis,with at least one follow-up angiography after 11 months.Offline quantitative flow ratio(QFR)analysis was performed on these cases.Patients were divided into two groups:LDL-C controlled group(LDL-C<1.8 mmol/L,148 patients with 191 vessels)and LDL-C uncontrolled group(LDL-C≥1.8 mmol/L,71 patients with 98 vessels).Coronary artery QFR and anatomical indicators such as minimal lumen diameter,minimal lumen area,percentage diameter stenosis,percentage area stenosis were compared within and between the groups.Further analysis was performed to identify influencing factors leading to changes in coronary physiological parameters derived from QFR. Results:Within the LDL-C controlled group,there was no significant difference in the QFR values of the vessels compared to baseline(P>0.05),whereas in the LDL-C uncontrolled group(P<0.05),a notable decline in QFR was observed.Patients in the LDL-C controlled group had lower rates of maximum diameter and area stenosis and higher minimum lumen diameter and area(all P<0.05).Through multifactorial Logistic regression analysis,it was found that a body mass index＞28 kg/m2,LDL-C≥1.8 mmol/L,and a history of myocardial infarction were independent risk factors leading to the decline in QFR(all P<0.05). Conclusions:It was found that patients in the LDL-C controlled group had higher coronary artery QFR,minimum lumen diameter and area,lower rates of maximum diameter and area stenosis.

Objective To investigate the clinical efficacy of different stents placement under endoscopic retrograde cholangiopancreatography(ERCP)in patients with malignant biliary obstruction(MBO)and the effect on patient survival time.Methods Clinical data of MBO patients treated with ERCP stent placement between January 2020 and March 2024 were collected,divided into recyclable stent group(33 cases),metal stent group(42 cases),and ordinary stent group(34 cases).Comparation of the three groups of preoperative and postoperative changes in liver function,complications of long-term cholangitis and pancreatitis,stent patency time,success rate of stent removal with a single clamping,survival time,monitoring follow-up situation.Results There was no statistically significant difference in the liver function of the three groups of patients before stent placement(P>0.05);One week after stent placement,the difference compared with preoperative between direct bilirubin(DBiL)and total bilirubin(TBiL)in the recyclable stent group and the metal stent group was significantly higher than that in the ordinary stent group,and the difference between the ordinary stent group and other two groups was statistically significant(P<0.05).The incidence of cholangitis in the recyclable stent group was the lowest,followed by the ordinary plastic biliary stent,and the metal biliary stent had the highest incidence of cholangitis,the incidence of cholangitis in the long term after stent placement was compared among the three groups of patients with a statistically significant difference(P<0.05).The incidence of postoperative pancreatitis in the three groups was not statistically significant(P>0.05).The success rate of stent removal with a single clamping was higher in the recyclable stent group than the ordinary stent group.Comparison of median stent patency time among the three groups,the difference was statistically significant(P<0.05).The metal stent group had the longest median patency time of 194.0 d,recyclable plastic stent had the second longest median patency time of 126.0 d,and ordinary plastic biliary stent had the shortest median patency time of 92.0 d.Median survival time among the three groups was statistically significant(P<0.05).The recyclable plastic biliary stent had the longest median survival time of 590.0 d,metal biliary stent had the second longest median survival time of 476.0 d,and ordinary plastic biliary stent had the shortest median survival time of 453.0 d.Conclusion Recyclable plastic biliary stent has a faster decrease in bilirubin index compared with the ordinary stent group after operation.And the recyclable plastic stent group has lower incidence of long-term cholangitis,higher success rate of one-time clamping of the stent,and more advantages in time to stent patency and survival time compared with ordinary plastic biliary stent,which is an effective choice of stenting modality for ERCP stent placement in patients with MBO.

Imaging mass cytometry(IMC)is a new technology integrating mass spectrometry,high-resolution laser ablation and immunohistochemistry/cytochemistry.With a unique high-dimensional perspective to comprehensively and accurately depict the complex phenotypes,signaling pathways,and tumor immune interactions in the tissue and tumor microenvironment,is widely used in gastrointestinal tumors.This article reviews the application of IMC in depicting the panorama of tumor microenvironment,revealing tu-mor spatial heterogeneity,clarifying tumor pharmacological mechanism,assisting new drug development,and evaluating the efficacy of immunotherapy dynamically in digestive system tumors.

【Objective】 To investigate the establishment of multi-center haemovigilance (HV) and the monitoring of adverse reactions to blood donation (ARBD), in order to provide basis for the management of blood donors. 【Methods】 The operation of HV was investigated by questionnaire. The total number of blood donations (including plateletpheresis) and ARBD cases occurred in each blood center from 2014 to 2018 were analyzed. 【Results】 Among the 24 blood centers in this survey, only nine got HV operated. The incidence of ARBD of 19 blood centers that fulfilled the questionnaire was in the range of (0.003~1.151) %. The change trend of number and incidence of ARBD cases were indeterminate. 【Conclusion】 Most blood centers did not got HV established. The incidence of ARBD varied greatly and was indeterminate. The application of HV should be further improved to strengthen ARBD management.

OBJECTIVE: To develop a self deep breathing training device which can improve lung function compliance and blood oxygen saturation. METHODS: The device consists of four parts:flow tube, measuring cylinder, mobile phone holder and meridian guidance audio-visual synthesis training software. The flow tube measures the flow rate of inhaled gas, the metering cylinder measures the total amount of inhaled gas, and the mobile phone rack is equipped with a mobile phone storing the meridian guidance audio-visual synthesis training software. RESULTS: The device is reasonable in structure and flexible in operation, which can meet the requirements of self deep inspiration training under the guidance of training module. CONCLUSIONS Deep inspiration training under the guidance of guidance training module can form "deep and slow" abdominal breathing, and then improve lung function.
Cell Phone ; Lung ; Meridians ; Software

Objective:To reduce the waiting time of patients reasonably by statistics and analysis of the waiting time of high-end medical outpatients and finding countermeasures.Methods:Through the hospital information system, the waiting time of 30 421 patients who were treated in International Department in China-Japan Friendship Hospital from January 2019 to July 2019 was collected.Results:The waiting time of 30 421 outpatients was (26.05±24.30) min. Among them, the waiting time of patients with non-appointment window registration was (23.45±23.71) min while the waiting time of patients with appointments was (30.17±24.66) min, and the difference was statistically significant ( t=-23.49, P<0.05) . Conclusions:Under the current outpatient procedure mode, a high proportion of patients with non-appointment window registration will increase the waiting time for patients with appointments. By increasing the proportion of patients with appointments through the process reform of outpatient department, strengthening of propaganda and education and other methods, accurate appointments can be achieved and the waiting time for appointment patients can be shortened.

Objective To evaluate the significance of kidney depth obtained by computed tomography (CT) in measuring glomerular filtration rate (GFR) by Gates method in living kidney transplant donors.Methods Individual kidney depth was compared among the estimates of Tφnnesen,Taylor and Li Qian formulas and CT measurements in 167 living-related kidney transplant donors respectively.While maintaining the active region of interest of kidney and background unchanged in 137 99mTe-DTPA renal dynamic imaging cases,GFR was measured by Gates' method and individual kidney compared among the estimates of Tφnnesen,Taylor and Li Qian formulas and CT measurements.Results Left/right kidney depth obtained by CT,Tφnnesen,Taylor and Li Qian formula was 6.82 ± 0.96/7.02 ± 1.00,5.67 ± 0.58/5.71 ± 0.59,6.43 ± 0.77/6.81 ± 0.72 and 7.03 ± 0.76/7.06 ± 0.70 cm;GFR 45.44 ± 9.04/46.61 ± 9.06,37.54 ± 6.34/37.37 ± 6.02,43.39 ± 7.59/44.62 ± 6.94 and 46.99 ± 8.04/46.70 ± 7.30 ml/min respectively.Individual kidney depth and GFR calculated by Taylor and Li Qian were higher than those of Tφnnesen formula (P＜0.01).Individual kidney depth and GFR calculated by CT were higher than those of Tφnnesen and Taylor formulas (P＜0.01).Left kidney depth and GFR calculated by Li Qian formula were higher than those of CT measurements (P＜0.01).And no significant difference existed in right kidney(P＞0.05).Conclusions Kidney depth measured by CT improves the accuracy of kidney depth estimated by Gates method and optimizes GFR in living donors for renal transplant.

Objective To evaluate the effect of Jinqiao-Reduqing granule in the treatment of children with herpes angina fever.Methods A total of 90 children with herpes angina were randomly divided into two groups,with 45 cases in each group.Both groups received the symptom-supported treatment.On this basis,the control group took ribavirin granules,while the observation group took Jinqiao-Reduqing granule.Both groups were treated for 4 days.The symptoms and signs were scored before and after treatment.The fever abatement time,herpes subsidence time,salivation disappearance time and appetite recovery time were observed and recorded.The serum levels of IL-2,IL-6,IL-10 and TNF-α were detected by ELISA,and peripheral blood levels of CD4+,CD8+,CD4+/CD8+ were detected by flow cytometry.Results After treatment,the scores of symptoms and signs in the observation group were significantly lower than those in the control group (3.02 ± 2.89 vs.6.88 ± 2.31;t=6.999,P＜0.01).The time of fever abatement (16.8 ± 3.2 h vs.29.9 ± 4.4 h,t=16.202),herpes subsidence (72.3 ± 5.4 h vs.96.7 ± 6.2 h,t=19.765),salivation disappearance (26.4 ± 2.0 h vs.46.3 ± 3.6 h,t=32.479) and appetite recovery (19.6 ± 4.2 h vs.39.7 ± 4.9 h,t=20.907) were significantly earlier than those in the control group (P＜0.01).After treatment,the serum levels of IL-2,IL-6,IL-10 and TNF-α in the observation group were lower than those in the control group (t were 4.974,4.410,6.447 and 4.767,respectively,all Ps＜0.01);CD4+ levels and CD4+/CD8+ were significantly higher than those in the control group (t were 4.033,6.860,all Ps＜ 0.01),and CD8+ levels was significantly lower than those in the control group (t=4.928,P＜0.01).Conclusions The Jinqiao-Reduqing granule can shorten the time of symptoms subsidence,reduce the level of inflammatory cytokines and improve the immunity of children with herpes angina fever.

bjective? To compare the appLication effects of power peripheraLLy inserted centraL catheter saLine onLy Locking option (Power PICC SOLO) and power PICC among chemotherapy patients in department of oncoLogy. Methods? Patients who were pLaced in the PICC of the First AffiLiated HospitaL of Zhengzhou University from January to November 2017 were randomLy divided into groups. Among them, 76 patients with Power PICC SOLO were incLuded in the observation group,80 patients with Power PICC were incLuded in the controL group. We compared the incidence of PICC reLated compLications, comfort, expenses of maintaining catheter and retention time of patients between two groups. ResuLts? There were statisticaL differences in the incidence of catheter obstruction and skin injury, comfort as weLL as maintenance time of patients between two groups (P＜ 0.05). ConcLusions? Power PICC SOLO is with the Low incidence of compLications, maintenance cost and high comfort of patients, and saves the maintenance time and reduce nurses' workLoad which is can be worthy of generaLized and appLied among cancer patients with chemotherapy.