【Objective】 To explore the diagnosis and management of liver injury caused by percutaneous nephrolithotripsy (PCNL), so as to provide reference for the diagnoise and treatment of similar patients. 【Methods】 The clinical data of 926 patients who underwent PCNL during Oct.2017 and Oct.2022 were searched, and the data of those complicated with liver injury were analyzed. 【Results】 A total of 11 cases were collected, including 6 males and 5 females, average age (55.00±13.25)years.All injuries were confirmed with CT.The average decrease of hemoglobin after operation was (14.00±11.97)g/L.One patient needed blood transfusion due to pyonephrosis and multiple operations, and all patients were cured and discharged after delaying the removal of nephrostomy tube [an average of (6.73±1.27)days] . 【Conclusion】 In the absence of obvious signs of peritonitis and hemodynamic stability, conservative treatment of liver injury caused by PCNL is safe and effective.

Objective To explore the correlation of nerve function and prognosis with serum uric acid(UA),homocysteine(Hcy)and low-density lipoprotein cholesterol(LDL-C)in patients with acute cerebral infarction(ACI)after alteplase intravenous thrombolysis.Methods A total of 220 ACI patients undergoing thrombolysis in Changsha First Hospital ICU between January 2020 and December 2022 were enrolled,and according to mRS score at 3 months after thrombolysis,they were divided into poor prognosis group(mRS score＞2,91 cases)and good prognosis group(mRS score ≤2,129 cases).The serum levels of UA,Hcy and LDL-C were compared between the two groups.The correlation between the three indexes and score of National Institutes of Health Stroke Scale(NIHSS),and their predictive value for poor prognosis were analyzed.Results At 1 and 3 d after thrombolysis,the serum levels of UA,Hcy and LDL-C and NIHSS score were sig-nificantly decreased in both groups,and the serum levels of UA and Hcy and NIHSS score at 3 d after thrombolysis were significantly lower than those at 1 d(P＜0.05).The poor prognosis group had obviously higher serum levels of UA,Hcy and LDL-C and NIHSS score at 1 and 3 d after thrombolysis than the good prognosis group(P＜0.05,P＜0.01).Pearson correlation analysis showed that the serum levels of UA,Hcy and LDL-C were positively correlated with NIHSS score at 1 and 3 d after thrombolysis(P＜0.01).ROC curve analysis indicated that the AUC values of UA,Hcy and LDL-C at 1 d after thrombolysis for predicting poor prognosis were 0.707(95％CI:0.639-0.776),0.800(95％CI:0.739-0.860)and 0.624(95％CI:0.550-0.698),respectively,while the values of them at 3 d after thrombolysis were 0.655(95％CI:0.583-0.726),0.730(95％CI:0.664-0.795)and 0.573(95％CI:0.497-0.649),respectively.Conclusion In ACI patients after thrombolysis,the serum levels of UA,Hcy and LDL-C are increased in those with poor prognosis,and are associated with the severity of nerve injury.The levels at 1 d after throm-bolysis have good predictive value for poor prognosis.

Objective To determine the effects of treadmill training on the structure of hippocampal myelin and cognitive function in rats exposed to acute plateau hypoxia.Methods With 30 SPF-grade female SD rats (aged 6-8 weeks,weighing 200-220 g),6 of them were used for observation of myelin structure after injury,and the remaining 24 rats were randomly divided into control group,hypobaric hypoxia group and treadmill training group (n=8).The rats in above experimental groups were placed in a low-pressure oxygen chamber at an altitude of 6000 m for 7 consecutive days,and the rats of the control group were placed in the confined chamber for the same period without hypoxia.Then,the rats of the treadmill training group received a 4-week treadmill training scheme since the day after hypoxia.Finally,all the rats were tested for cognitive function with open field test (OFT)and Morris water maze (MWM).Transmission electron microscopy (TEM) was used to observe the changes of demyelination in the hippocampus. The expression of oligodendrocyte transcription factor 2 (Olig2)and myelin basic protein (MBP )in the hippocampal CA1 and CA3 regions was measured by immunofluorescence staining and Western blotting.Results Behavioral tests showed that the number into the central area,total distance,distance ratio in OFT and the number of platform crossings and distance to the target area in MWM were reduced in the hypobaric hypoxia group than the control group (P<0.05 ),while these indexes were increased in the treadmill training group than in the hypobaric hypoxia group (P<0.05).Immunofluorescence staining indicated that the number of Olig2 positive cells per unit area and the mean fluorescence intensity of MBP in the CA1 and CA3 regions were significantly lessen in the hypobaric hypoxia group than the control group (P<0.05 ),while these indicators were higher in the treadmill training group than the hypobaric hypoxia group (P<0.05 ).Western blotting displayed that the expression levels of Olig2 and MBP in the hippocampus were obviously lower in the hypobaric hypoxia group than the control group (P<0.01 ),while the levels were increased in the treadmill training group than the hypobaric hypoxia group (P<0.01 ).Conclusion Treadmill training promotes the number of the oligodendrocyte spectrum cells in CA1 and CA3 regions,enhances the expression of myelin-related proteins and improves myelin repair in hippocampus of hypobaric hypoxia rats,and thereby ameliorates hypoxia-induced anxiety-like behaviors and memory dysfunction.

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 efficacy and safety of ultrasound-guided of lumbar square muscle block on the arcuate ligament in laparoscopic surgery for gastrointestinal tumors.Methods:A retrospective study was conducted on 106 patients who underwent laparoscopic gastrointestinal tumor surgery in Rugao Branch of Affiliated Hospital of Nantong University from January 2020 to December 2022, 53 patients(observation group) were given the ultrasound-guided of lumbar square muscle block on the arcuate ligament before general anesthesia, 53 patients(control group) were given only general anesthesia. The sensory block planes were recorded at 5 min and 15 min after the block in the observation group, and the hemodynamic indexes, stress indexes at differences time points and postoperative analgesia were compared between the two groups.Results:Most patients in the observation group could monitor the T 8 - L 1 sensory block plane at 5 min after block, and the T 5 - L 2 sensory block plane could be reached at 15 min after block, and the percentage of block was 100.00%(53/53). The results of repeated measurement variance analysis (ANOVA) showed that the intergroup - time point interaction of heart rate (HR) and mean arterial pressure (MAP) between the two groups had statistical differences ( P<0.05); the intergroup-time point interaction of the levels of noradrenaline (NE), epinephrine (E), adrenocorticotropic hormone (ACTH), cortisol (Cor) between the two groups had statistical differences ( P<0.05); the intergroup - time point interaction of the resting and active visual analog scale (VAS) scores between the two groups had statistical differences ( P<0.05). The amount of propofol, remifentanil, the number of effective patient-controlled intravenous analgesia (PCIA) compressions, and the total number of PCIA compressions in the observation group were lower than those in the control group: (1 128.36 ± 137.95) mg vs. (1 415.18 ± 153.24) mg, (1.47 ± 0.49) mg vs. (2.76 ± 0.74) mg, (4.25 ± 0.87) times vs. (8.63 ± 0.94) times, (10.27 ± 1.25) times vs. (15.75 ± 1.47) times, there were statistical differences ( P<0.05). The rate of remedial analgesia within 48 h after surgery between the two groups had no statistical difference ( P>0.05). The awakening time, first time out of bed, first time exhaust and hospitalization time in the observation group were shorter than those in the control group: (4.75 ± 0.57) min vs. (7.02 ± 0.64) min, (11.65 ± 1.47) h vs. (15.87 ± 1.94) h, (14.79 ± 2.12) h vs. (19.59 ± 3.30) h, (4.78 ± 0.72) d vs. (7.14 ± 0.98) d, there were statistical differences ( P<0.05). The incidence of adverse reactions between the two groups had no statistical difference ( P>0.05). Conclusions:Ultrasound-guided of lumbar square muscle block on the arcuate ligament in laparoscopic surgery for gastrointestinal tumors has significant analgesic effects, can reduce intraoperative anesthetic maintenance dose, maintain intraoperative hemodynamic stability, reduce postoperative pain sensation and stress response, reduce postoperative analgesic injection dose, shorten postoperative wakefulness time, and accelerate recovery.

Objective:The nasal swell body（NSB） consists of the nasal septal cartilage, nasal bone, and swollen soft tissue, all of which are visible during endoscopic and imaging examinations. Although the function of the NSB remains uncertain, there is evidence to suggest that it plays a vital role in regulating nasal airflow and filtering inhaled air. Based on anatomical and histological evidence, it is hypothesized that the NSB is indispensable in these processes. This study aims to investigate the impact of NSB on nasal aerodynamics and the deposition of allergen particles under physiological conditions. Methods:The three-dimensional （3D） nasal models were reconstructed from computed tomography （CT） scans of the paranasal sinus and nasal cavity in 30 healthy adult volunteers from Northwest China, providing basis for the construction of models without NSB following virtual NSB-removal surgery. To analyze the distribution of airflow in the nasal cavity, nasal resistance, heating and humidification efficiency, and pollen particle deposition rate at various anatomical sites, we employed the computed fluid dynamics（CFD） method for numerical simulation and quantitative analysis. In addition, we created fully transparent segmented nasal cavity models through 3D printing, which were used to conduct bionic experiments to measure nasal resistance and allergen particle deposition. Results:①The average width and length of the NSB in healthy adults in Northwest China were （12.85±1.74） mm and （28.30±1.92） mm, respectively. ②After NSB removal, there was no significant change in total nasal resistance, and cross-sectional airflow velocity remained essentially unaltered except for a decrease in topical airflow velocity in the NSB plane. ③There was no discernible difference in the nasal heating and humidification function following the removal of the NSB; ④After NSB removal, the deposition fraction（DF） of Artemisia pollen in the nasal septum decreased, and the DFs post-and pre-NSB removal were（22.79±6.61）% vs （30.70±12.27）%, respectively; the DF in the lower airway increased, and the DFs post-and pre-NSB removal were（24.12±6.59）% vs （17.00±5.57）%, respectively. Conclusion:This study is the first to explore the effects of NSB on nasal airflow, heating and humidification, and allergen particle deposition in a healthy population. After NSB removal from the healthy nasal cavities: ①nasal airflow distribution was mildly altered while nasal resistance showed no significantly changed; ②nasal heating and humidification were not significantly changed; ③the nasal septum's ability to filter out Artemisia pollen was diminished, which could lead to increased deposition of Artemisia pollen in the lower airway.
Adult ; Humans ; Cross-Sectional Studies ; Nasal Cavity/surgery* ; Allergens ; Pollen ; Artemisia ; Hydrodynamics

Objective To explore the value of amplitude integrated electroencephalogram(aEEG)combined with electroencephalogram monitoring α percentage variation(PAV)in evaluating the short-term prognosis of patients with severe acute cerebral infarction(SACI).Methods A total of 212 SACI patients hospitalized in our ICU from January 2020 to December 2022 were recruited and then divided into poor prognosis group(93 cases)and good prognosis group(119 cases)ac-cording to the mRS score at 90 d.The differences in aEEG and PAV were observed between the two groups.Multivariate logistic regression analysis was used to observe the relationship of aEEG and PAV with poor prognosis.ROC curve was plotted to analyze the clinical value of aEEG and PAV in predicting the prognosis of SACI patients.Results The incidence of poor prognosis was 43.9％in 212 patients at the 90th day.The patients from the poor prognosis group had significantly higher aEEG score but lower PAV than those in the good prognosis group(P＜0.01).Multivari-ate logistic regression analysis showed that aEEG was a risk factor for poor prognosis(OR=1.403,95％CI:1.114-3.287,P=0.011),and PAV was a protective factor for poor prognosis(OR=0.714,95％CI:0.591-0.837,P=0.006).ROC curve results revealed that PAV had a high-er sensitivity,specificity and AUC value than aEEG in predicting poor prognosis of SACI pa-tients,and their combination obtained better sensitivity,specificity and AUC value than aEEG or PAV alone in the prediction(P＜0.01).Conclusion The combined use of aEEG and PAV has high clinical value in predicting the prognosis of SACI patients.

Objective:To evaluate the clinical effect of high-intensity interval training and moderate continuous aerobic training on patients classified as low risk for exercise rehabilitation after a percutaneous coronary intervention (PCI).Methods:A total of 43 patients considered low-risk after a PCI were randomly divided into a high-intensity interval training group (HIIT group, 22 cases) and a moderate continuous aerobic training group (MCT group, 21 cases). The HIIT group received high-intensity, but aerobic interval training involving 8 rounds of 3 minutes of high-intensity exercise with 2-minute intervals at 80% of peak power over 40 minutes, 3 times a week. The MCT group trained continuously at 60% of peak power for the same duration. After 12 weeks both groups were given an ultrasound examination and a cardiopulmonary exercise test to assess their cardiac functioning and exercise endurance. The subjects′ life quality was evaluated and compared using some items from the SF-36 scale.Results:Before the training, no significant differences were observed in the average left ventricular ejection fraction, stroke volume, peak power, peak oxygen uptake, anaerobic threshold, physiological functioning, physical pain, general health or social functioning between the two groups. After the training significant improvement in all these indicators was observed in both groups, but compared with MCT group, the average left ventricular ejection fraction, stroke volume, peak power and peak oxygen uptake of the HIIT group were significantly better.Conclusions:High-intensity, aerobic interval training is superior to moderate but continuous aerobic training for improving the cardiac functioning and exercise endurance of patients suitable for exercise rehabilitation after a PCI. But there is no significant difference in their effect on the short-term quality of life.

Objective:To construct a clinical predictive model of severe adenovirus pneumonia(SAP)in children using random forest and verify it.Methods:The clinical, laboratory and imaging data of 542 children with adenovirus pneumonia treated in Tianjin Children′s Hospital from January 2019 to January 2021 were analyzed retrospectively.The research object was randomly divided into training dataset and validation dataset(8∶2).The training dataset screened the predictors of SAP of pneumonia through random forest and established a prediction model, and the prediction model was expressed visually by the nomogram.In the validation dataset, the receiver operating characteristic curve(ROC)and sensitivity, specificity, error rate and confusion matrix were used to validate it.Results:A total of 439 children were in the training dataset, and 187 cases(42.60%)of the training data was divided as severe type.A total of 103 children were in validation dataset, and 44 cases(42.71%)of the validation dataset was divided as severe type.The percentage of monocytes(M%), PLT, AST, IL-6, the peak of body temperature, pulmonary inflammation of the consolidation and patchy shadowing were independent predictors of SAP in children.The area under the ROC curve of the training dataset and the validation dataset was 0.95(95% CI: 0.92~0.98)and 0.92(95% CI: 0.82~0.99), respectively.The accuracy, sensitivity, specificity, positive predictive value and negative predictive value of the training dataset were 0.994, 1.000, 0.987, 0.998, 1.000 and in validation dataset were 0.752, 0.990, 0.514, 0.945 and 0.857, respectively. Conclusion:The predictive model has good discriminant ability, and the early clinical and hematological indexes are helpful to improve the identification and screening of SAP in children.

Objective:To analyze the clinical characteristics and risk factors for mortality of severe pneumocystis carinii pneumonia(PCP)in pediatric liver transplant(LT)recipients.Methods:The data of severe PCP in LT recipients diagnosed at Shanghai Children′s Medical Center from November 2019 to February 2021 were collected.The clinical characteristics and risk factors for 28-day mortality were analyzed.Results:Fifteen patients were enrolled in the study.Thirteen cases survived and 2 cases were non-survived.There was no routine anti-pneumocystis prophylaxis after LT.The median age of onset of PCP was 12(7, 26)months.The median time after LT was 3.00(0.33, 4.00)months.The onset clustered in November-December and June-August.All patients were mechanically ventilated, and some patients were given prone ventilation(11 cases), neuromuscular blocking agents(13 cases)and high concentration oxygen(more than 60%, nine cases). Fourteen cases were complicated with other infections.Two cases were complicated with pneumothorax and subcutaneous/mediastinal emphysema.There were 2 cases with septic shock-like manifestation, 1 case of right heart insufficiency, 1 case of right heart failure(death), and 1 case of multiple organ failure(death). Compared with the survived group, the non-survived group had higher pediatric risk of mortality Ⅲ score[3.5(0.0, 6.0)vs.8.5(5.0, 12.0), Z=1.993, P=0.046] and lactate dehydrogenase level[1 731.5(1 012.0, 3 270.0)U/L vs.4 387.5(3 606.0, 5 169.0)U/L, Z=2.148, P=0.032]. Conclusion:PCP in pediatric LT is critical and complicated.Pediatric risk of mortality Ⅲ scores and lactate dehydrogenase increase in 28-day hospitalized deaths.