1.Three-dimensional Electrical Impedance Tomography for Monitoring Gastric Hemorrhage
Zi-Han ZHAO ; Bo SUN ; Jing-Shi HUANG ; Zhi-Wei LI ; Yang WU ; Nan LI ; Jia-Feng YAO ; Tong ZHAO
Progress in Biochemistry and Biophysics 2026;53(4):1062-1075
ObjectiveGastric hemorrhage is one of the most common and life-threatening emergencies of the upper digestive tract. Early identification and continuous monitoring are essential for reducing rebleeding rates and mortality, particularly within the critical early hours after onset. Although endoscopy and radiological imaging can accurately localize bleeding sites, these approaches are invasive, resource-intensive, and unsuitable for continuous bedside monitoring. Electrical impedance tomography (EIT), as a noninvasive and radiation-free functional imaging technique, offers real-time visualization of conductivity distribution and has the potential for detecting intragastric bleeding based on the electrical contrast between blood and surrounding gastric tissues. In this study, a three-dimensional gastric EIT (3D-gEIT) framework is proposed to achieve noninvasive, real-time, and dynamic monitoring of gastric hemorrhage, with emphasis on spatial localization and quantitative volume assessment. MethodsA three-dimensional upper-abdominal simulation model incorporating the stomach, gastric wall, gastric contents, and surrounding tissues was established. Three electrode configurations, namely the dual layer ring, the four layer staggered ring, and the opposed dual plane array, were designed and systematically compared to evaluate their influence on depth sensitivity and spatial resolution. Based on the Tikhonov-Noser hybrid regularization scheme, a region-clustering constraint was introduced to develop the TK-Noser-RCC algorithm. This approach aggregates spatially adjacent elements with similar conductivity variations, thereby enhancing structural continuity and suppressing isolated noise artifacts. To validate the proposed framework, an upper-abdominal physical phantom was constructed using agar to simulate background tissue conductivity. Hemispherical high-conductivity inclusions with volumes ranging from 10 ml to 50 ml were attached to the inner gastric wall to mimic localized bleeding under different gastric filling states. Boundary voltages were acquired under a 120 kHz excitation current and reconstructed using the TK-Noser-RCC algorithm. Furthermore, an in vivo animal experiment was performed using a porcine model with adult-scale abdominal dimensions. A total of 100 ml of autologous blood was injected incrementally into the stomach to simulate progressive gastric hemorrhage, and time-difference EIT reconstruction was conducted at each injection stage to assess the dynamic system response under physiological conditions. ResultsSimulation results demonstrated that the opposed dual-plane electrode array achieved superior depth sensitivity distribution and spatial resolution. For a 40 ml hemorrhage model, the average ICC and SSIM improved by 55.9% and 38.8% compared with the dual-layer ring configuration, and by 64.0% and 39.5% compared with the four-layer staggered configuration. The proposed region-clustering constraint significantly enhanced reconstruction stability. Under added Gaussian noise of 40 dB and 30 dB, ICC values remained approximately 0.85, indicating effective artifact suppression and preservation of boundary integrity. In physical phantom experiments, reconstructed hemorrhage volumes increased approximately linearly with the preset hemispherical volumes, and the reconstructed high-conductivity regions closely matched the actual bleeding locations. Both empty-stomach and full-stomach conditions were evaluated, demonstrating that the opposed dual-plane configuration maintained stable imaging performance across varying gastric contents. In the animal experiment, reconstructed low-impedance regions expanded progressively with increasing injected blood volume. The spatial localization of the hemorrhage remained stable throughout the procedure, and no significant artifacts were observed. Quantitative analysis showed that reconstructed volume and average conductivity variation exhibited an approximately linear growth trend with injected blood volume, confirming the sensitivity of the system to dynamic intragastric conductivity changes. ConclusionThe proposed 3D-gEIT framework enables quantitative reconstruction of gastric hemorrhage volume and spatial distribution with improved depth sensitivity, structural continuity, and noise robustness compared with conventional EIT approaches. By integrating optimized electrode configuration and a region-clustering-constrained reconstruction algorithm, the system provides stable dynamic monitoring under both controlled phantom conditions and in vivo physiological environments. This method offers a noninvasive, real-time, and low-cost imaging strategy for early diagnosis, postoperative monitoring, and bedside surveillance of gastric bleeding.
2.Treatment Principles and Paradigm of Diabetic Microvascular Complications Responding Specifically to Traditional Chinese Medicine
Anzhu WANG ; Xing HANG ; Lili ZHANG ; Xiaorong ZHU ; Dantao PENG ; Ying FAN ; Min ZHANG ; Wenliang LYU ; Guoliang ZHANG ; Xiai WU ; Jia MI ; Jiaxing TIAN ; Wei ZHANG ; Han WANG ; Yuan XU ; .LI PINGPING ; Zhenyu WANG ; Ying ZHANG ; Dongmei SUN ; Yi HE ; Mei MO ; Xiaoxiao ZHANG ; Linhua ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):272-279
To explore the advantages of traditional Chinese medicine (TCM) and integrative TCM-Western medicine approaches in the treatment of diabetic microvascular complications (DMC), refine key pathophysiological insights and treatment principles, and promote academic innovation and strategic research planning in the prevention and treatment of DMC. The 38th session of the Expert Salon on Diseases Responding Specifically to Traditional Chinese Medicine, hosted by the China Association of Chinese Medicine, was held in Beijing, 2024. Experts in TCM, Western medicine, and interdisciplinary fields convened to conduct a systematic discussion on the pathogenesis, diagnostic and treatment challenges, and mechanism research related to DMC, ultimately forming a consensus on key directions. Four major research recommendations were proposed. The first is addressing clinical bottlenecks in the prevention and control of DMC by optimizing TCM-based evidence evaluation systems. The second is refining TCM core pathogenesis across DMC stages and establishing corresponding "disease-pattern-time" framework. The third is innovating mechanism research strategies to facilitate a shift from holistic regulation to targeted intervention in TCM. The fourth is advancing interdisciplinary collaboration to enhance the role of TCM in new drug development, research prioritization, and guideline formulation. TCM and integrative approaches offer distinct advantages in managing DMC. With a focus on the diseases responding specifically to TCM, strengthening evidence-based support and mechanism interpretation and promoting the integration of clinical care and research innovation will provide strong momentum for the modernization of TCM and the advancement of national health strategies.
3.Analysis of the current status and influencing factors of attitudes and competence in hospice care among nursing interns
Shipeng SUN ; Yan JIA ; Wei ZHAO ; Rong WANG ; Xin GAO
Chinese Medical Ethics 2026;39(5):663-668
ObjectiveTo investigate the attitudes and competence of nursing interns toward hospice care, analyze the key factors influencing their performance, and provide targeted improvement suggestions to enhance their comprehensive quality. MethodsA total of 273 undergraduate nursing interns were investigated. General demographic data were collected, and the Chinese version of the Frommelt Attitude Toward Care of the Dying Scale, Form B (FATCOD-B) and the Hospice Care Competency Assessment Questionnaire were administered to evaluate their attitudes and competence in hospice care. A total of 270 valid questionnaires were recovered. Multiple linear regression was performed to analyze the influencing factors of hospice care attitudes and competence among nursing interns. ResultsThe total score of hospice care attitudes was (76.04±12.18) among these 270 nursing interns. Having cared for critically ill patients, receiving hospice care-related education, and experiencing the loss of relatives or friends in the past year were positive influencing factors for their hospice care attitudes, whereas avoidance of talking about death was a negative influencing factor. The total score of hospice care competence was (42.75±4.68). Having cared for critically ill patients and receiving hospice care-related education represented positive influencing factors for their hospice care competence. ConclusionThe hospice care attitudes and competence of nursing interns are all at moderate levels. It is necessary to strengthen education and training on hospice care for nursing interns, improve the ability of nurses, and provide assistance for the development of hospice care.
4.Clinical efficacy of laparoscopic left hemi-fundoplication for gastroesophageal reflux disease
Weixue ZHANG ; Guolei LI ; Hao FENG ; Yuan LIU ; Lihui JIA ; Haiyan BAI ; Wei XING ; Zhao XU
Chinese Journal of Digestive Surgery 2025;24(10):1333-1337
Objective:To explore the clinical efficacy of laparoscopic left hemi-fundoplica-tion for gastroesophageal reflux disease (GERD).Method:The retrospective and descriptive study was conducted. The clinical data of 45 patients with GERD who were admitted to Hebei Provincial Hospital of Traditional Chinese Medicine from July 2019 to July 2022 were collected. There were 26 males and 19 females, aged (46±12) years. All patients underwent laparoscopic left hemi-fundoplication. Observation indicators: (1) intraoperative and postoperative conditions; (2) follow-up. Measurement data with normal distribution were expressed as Mean± SD. Count data were expressed as absolute numbers. The paired samples t-test was used for comparison of indicators before and after surgery. Result:(1) Intraoperative and postoperative conditions. All 45 patients successfully underwent the operation, with no conversion to open surgery or intraoperative complications. The operation time was (86±8)minutes, volume of intraoperative blood loss was (12±3)mL, and time to postoperative first flatus was (2.2±0.8)days. Among the 45 patients after surgery, 4 cases had fever, 3 cases had retrosternal dull pain and discomfort, 4 cases had dysphagia, 3 cases had abdominal distension, and 5 cases had constipation. All these symptoms were cured or relieved spontaneously after sympto-matic treatment. The duration of postoperative hospital stay was (3.5±0.5)days. There was no patient with infection, delayed bleeding or perforation.(2) Follow-up. All 45 patients were followed up for 1 year after surgery, with no recurrence of GERD. Gastroscopy showed no esophageal mucosal damage such as erosion or ulcer, and no hiatal hernia occurred. Before surgery, the reflux symptom index score, GERD questionnaire score, reflux disease questionnaire score, lower esophageal sphincter resting pressure, and DeMeester score of 24-hour esophageal pH monitoring were 24.3±1.9, 12.5±2.1,20.1±4.5, (7.1±1.1)mmHg (1 mmHg=0.133 kPa), and 31.4±6.4, respectively. At 1 year after surgery, the above indicators were 2.2±0.7, 6.5±0.5, 4.0±2.6, (23.2±2.9)mmHg, and 6.0±1.4, respectively. There were significant differences before and after surgery ( t=80.75, 18.70,20.09, -33.45, 26.15, P<0.05). Conclusion:Laparoscopic left hemi-fundoplication is safe and feasible for GERD, which can improve the clinical symptoms of patients.
5.Effects of transverse cervical artery related skin flaps in repairing neck and shoulder wounds
Feng ZHAO ; Kai-pan QU ; Mei-jia LI ; Wei-feng LI
Journal of Regional Anatomy and Operative Surgery 2025;34(9):832-835
Objective To explore the effects of transverse cervical artery related skin flaps in repairing skin soft tissue defects in the neck and shoulder.Methods A total of 13 patients with soft tissue defects in neck and shoulder admitted to Linyi People's Hospital from January 2018 to January 2022 were selected.The wounds of patients were repaired with transverse cervical artery related skin flaps,and the donor area was repaired with direct suturing and/or full-thick skin graft from the inguinal area.The survival,appearance and texture of the flap after surgery were recorded.The wound healing in the donor area and the survival of the grafted skin were observed.The follow-up was conducted for 5 to 12 months,and the appearance of the grafted flap and the recovery of function in the surgical area were observed.Results The flaps had good survival in the first stage after surgery,the color and texture of the flap matched well with the surrounding tissue,and the wound healing in the donor area was good.During the follow-up,the function and appearance of neck and shoulder for patients recovered well.Conclusion The advantages of transverse cervical artery related skin flaps in repairing skin soft tissue defects in the neck and shoulder is that the color and texture of the flap matched well with the surrounding tissue,with reliable blood circulation,and the appearance and postoperative function recover well,which is worthy of promotion and application in clinic.
6.Clinical efficacy of V-shaped bone tunnel technique at the base of the distal phalanx for treating tendinous mallet finger
Cunyin XUE ; Zhaoqiang JIA ; Chuansheng FU ; Huajian ZHAO ; Zhenyu LI ; Hailin BIAN ; Baofu WEI
Chinese Journal of Plastic Surgery 2025;41(7):692-698
Objective:To evaluate the clinical efficacy of the V-shaped bone tunnel technique at the base of the distal phalanx for treating tendinous mallet finger.Methods:A retrospective analysis was conducted on clinical data from patients with tendinous mallet finger treated in the Department of Hand and Foot Surgery at Linyi People’s Hospital between August 2022 and November 2023. Two oblique bone tunnels were created in a V-shaped configuration at the dorsal base of the distal phalanx, adjacent to the extensor tendon insertion, using a 0.8 mm Kirschner wire. A 4-0 double-needle monofilament tendon suture was passed through the tunnels to secure the ruptured extensor tendon to the base of the distal phalanx, followed by fixation of the distal interphalangeal (DIP) joint with a 1.0 mm Kirschner wire. The Kirschner wire was removed at 4 weeks postoperatively to initiate functional exercises. Regular follow-up was conducted to monitor wound healing and functional recovery of the DIP joint. At the final follow-up, the range of flexion and extension of the DIP joint was measured, and treatment outcomes were evaluated using Crawford’s mallet finger evaluation criteria, which classified results into four grades: excellent, good, fair, and poor.Results:Fifteen patients (16 fingers) were included, comprising 11 males and 4 females, with a mean age of 44.5 years (range: 17-65 years). The injured fingers included 2 index, 4 middle, 5 ring, and 5 little fingers, all presenting with DIP joint flexion deformity and limited active extension. Postoperative follow-up ranged from 6 to 28 months (mean: 17 months). All wounds healed primarily without complications such as infection or skin necrosis, and no cases of tendon re-rupture occurred. At the final follow-up, the measurement results of flexion and extension range of motion of the affected fingers at the DIP joint were as follows: the maximum flexion angle of all 16 fingers was 45°, among which 7 fingers had an extension angle of 0°, 8 fingers had limited extension ranging from 1° to 10°, and 1 finger had limited extension of 15°. Among the 16 fingers, 7 fingers were rated as excellent, 8 fingers as good and 1 finger as fair.Conclusion:The V-shaped bone tunnel technique for tendon-to-bone reattachment of the extensor tendon insertion is a simple and effective method for treating tendinous mallet finger. It provides satisfactory functional recovery, improves finger appearance, and is associated with minimal complications.
7.Study on the relationship between vertical laminar fracture,dural tear,and spinal cord functional injury
Kun ZHAO ; Jia LIU ; Kewei WEI ; Mengdi QI ; Geng XU ; Jiayue HAN ; Zhong YANG
Journal of Practical Radiology 2025;41(10):1711-1714
Objective To investigate the relationship between vertical laminar fracture(VLF)in thoracolumbar burst fractures and both neurological injury and dural tear.Methods A retrospective analysis was conducted on the clinical data and multi spiral computed tomography(MSCT)coronal images of 255 patients of thoracolumbar burst fractures.The patients were divided into three groups based on the presence of VLF[Ⅰ group(complete VLF group),Ⅱ group(partial VLF group),and Ⅲ group(normal lamina group)].Statistical analysis was performed using analysis of variance and Fisher's exact test to compare radiological parameters,inci-dence of dural tear,and neurological injury among the groups.Results The Ⅰ group showed significant differences in spinal canal sagittal diameter,pedicle distance,and spinal canal area compared with the other two groups(P<0.05).However,there was no sig-nificant difference in vertebral body compression rate between the Ⅰ group and the Ⅱ group(P>0.05).The Ⅰ group had the high-est incidence of severe neurological injury[American Spinal Injury Association(ASIA)impairment scale grades A and B]and dural tear(P<0.05).Conclusion The severity of VLF is closely related to dural tear and neurological injury.MSCT coronal images can clearly display the extent of VLF,providing an important basis for clinical evaluation and treatment plan.
8.Clinical efficacy of V-shaped bone tunnel technique at the base of the distal phalanx for treating tendinous mallet finger
Cunyin XUE ; Zhaoqiang JIA ; Chuansheng FU ; Huajian ZHAO ; Zhenyu LI ; Hailin BIAN ; Baofu WEI
Chinese Journal of Plastic Surgery 2025;41(7):692-698
Objective:To evaluate the clinical efficacy of the V-shaped bone tunnel technique at the base of the distal phalanx for treating tendinous mallet finger.Methods:A retrospective analysis was conducted on clinical data from patients with tendinous mallet finger treated in the Department of Hand and Foot Surgery at Linyi People’s Hospital between August 2022 and November 2023. Two oblique bone tunnels were created in a V-shaped configuration at the dorsal base of the distal phalanx, adjacent to the extensor tendon insertion, using a 0.8 mm Kirschner wire. A 4-0 double-needle monofilament tendon suture was passed through the tunnels to secure the ruptured extensor tendon to the base of the distal phalanx, followed by fixation of the distal interphalangeal (DIP) joint with a 1.0 mm Kirschner wire. The Kirschner wire was removed at 4 weeks postoperatively to initiate functional exercises. Regular follow-up was conducted to monitor wound healing and functional recovery of the DIP joint. At the final follow-up, the range of flexion and extension of the DIP joint was measured, and treatment outcomes were evaluated using Crawford’s mallet finger evaluation criteria, which classified results into four grades: excellent, good, fair, and poor.Results:Fifteen patients (16 fingers) were included, comprising 11 males and 4 females, with a mean age of 44.5 years (range: 17-65 years). The injured fingers included 2 index, 4 middle, 5 ring, and 5 little fingers, all presenting with DIP joint flexion deformity and limited active extension. Postoperative follow-up ranged from 6 to 28 months (mean: 17 months). All wounds healed primarily without complications such as infection or skin necrosis, and no cases of tendon re-rupture occurred. At the final follow-up, the measurement results of flexion and extension range of motion of the affected fingers at the DIP joint were as follows: the maximum flexion angle of all 16 fingers was 45°, among which 7 fingers had an extension angle of 0°, 8 fingers had limited extension ranging from 1° to 10°, and 1 finger had limited extension of 15°. Among the 16 fingers, 7 fingers were rated as excellent, 8 fingers as good and 1 finger as fair.Conclusion:The V-shaped bone tunnel technique for tendon-to-bone reattachment of the extensor tendon insertion is a simple and effective method for treating tendinous mallet finger. It provides satisfactory functional recovery, improves finger appearance, and is associated with minimal complications.
9.Quality evaluation of Rubi Fructus based on UPLC-Q-TOF-MS/MS,HPLC fingerprints and content determination
Shu-wan LI ; Yang-zhen LIAO ; Long-fei WANG ; Ya-qin ZHAO ; Jia-he FAN ; Yuan WEI ; Zhen OUYANG
Chinese Traditional Patent Medicine 2025;47(4):1077-1084
AIM To evaluate the quality of Rubi Fructus.METHODS UPLC-Q-TOF-MS/MS was adopted in the component identification,after which the HPLC fingerprints were established,cluster analysis,principal component analysis and orthogonal partial least squares discriminant analysis were used for chemical pattern recognition.and the contents of chlorogenic acid,ferulic acid,ellagic acid,isoquercitrin,kaempferol-3-O-rutinoside,astragalin,tiliroside quercetin,kaempferol were determined.RESULTS Total 34 constituents were identified.There were 19 common peaks in the fingerprints for 31 batches of medicinal materials with the similarities of more than 0.8.Wild varieties and cultivated varieties,and medicinal materials from different producing areas could be distinguished;4 principal components demonstrated the accumulative variance contribution rate of 84.142%;8 differential components were screened,2 of which were ellagic acid and astragalin.Ellagic acid and astragalin displayed higher contents in the wild varieties than those in the cultivated varieties(P<0.05,P<0.01).CONCLUSION UPLC-Q-TOF-MS/MS,HPLC fingerprints combined with content determination can be used for the quality control of Rubi Fructus.
10.Application effect evaluation of patient service intelligent management platform based on one hospital and multiple districts
Hanxu LANG ; Peipei JIA ; Lianfang LU ; Juan FENG ; Houping ZHAO ; Lili WEI
Modern Hospital 2025;25(3):417-421
Objective The sample hospital is currently in the exploration stage of creating patient satisfaction service un-der the one-hospital and multi-district management mode.In order to improve the overall feeling of patients in the process of hos-pital treatment,the application effect of the existing all-round full-cycle patient service intelligent management platform in the hos-pital is quantitatively evaluated,so as to better improve the service mode.Methods A survey was conducted to collect satisfac-tion data from two groups:the experimental group,which utilized the comprehensive and full-cycle patient service intelligent man-agement platform for diagnosis and treatment services,and the control group,which followed the conventional patient admission and discharge process.The work efficiency number was obtained and calculated through the background of the system,including the average time to handle hospitalization procedures,the average waiting time for examination,the average time to handle dis-charge procedures,the time spent on each follow-up visit and the response rate of follow-up patients.The data were analyzed sta-tistically.Results The work efficiency of the experimental group was significantly better than that of the control group,and the satisfaction of hospitalized patients and staff was higher than that of the control group.Conclusion The application of the com-prehensive and full-cycle patient service intelligent management platform can improve the satisfaction of patients and staff,opti-mize the efficiency of treatment,and better serve the management mode of one hospital and multiple districts.

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