1.Effect of rocuronium on spectral entropy during induction of general anesthesia in patients of Uygur nationality
Fang JI ; Bing ZHANG ; Yahua LIU ; Jifeng YIN ; Zhixin XU
Chinese Journal of Anesthesiology 2011;31(6):661-663
Objective To investigate the effect of rocuronium on spectral entropy during induction of general anesthesia in patients of Uygur nstionality. Methods Forty ASA Ⅰ or Ⅱ patients (Uygur nationality) of both sexes, aged 20-50 yr, weighing 45-70 kg, undergoing elective surgery under general anesthesia, were divided into 2 groups ( n = 20 each): normal saline (NS) group and rocuronium group (group R). Anesthesia was induced with target-controlled infusion of propofol. The initial target plasma concentration wan net at 2 μg/ml. The concentration wan then increased by 0.5 μg/ml every 4 min until response entropy (RE) was decreased to 45 and maintained for 4 min. When the plasma concentration was equal to the effect-site concentration, iv rocuronium 0.6 mg/kg was injected in group R, while group NS received the equal volume of NS instead. Fentanyl 3 μg/kg was injected intravenously at 3 min after recuronium administration. The patients were tracheal intubated and mechanically ventilated. State entropy (SE) and RE were recorded immediately before induction (baseline, To), before rocuronium administration (T1), 2 main after rocuronium administration (T2) and at 0, 1, 2 and 3 min after intubation (T3-6). The difference between RE and SE wan calculated. Results The RE value at T3 and T4 and the difference between RE and SE at T2.5 were significantly lower in group R than in group NS ( P < 0.05). Conclusion Rocuronium can decrease the RE value and degree of increase in the difference between RE and SE during induction of general anesthesia in patients of Uygur nationality, which may affect the accuracy of spectral entropy in monitoring the depth of anesthesia.
2.Value of procalcitonin on predicting the severity and prognosis in patients with early ARDS: a prospective observation study
Zhixin YU ; Musen JI ; Xiulan HU ; Jun YAN ; Zhaochen JIN
Chinese Critical Care Medicine 2017;29(1):34-38
Objective To investigate the value of procalcitonin (PCT) on predicting the severity and prognosis in patients with early acute respiratory distress syndrome (ARDS).Methods A prospective observation study was conducted. A total of 113 patients with ARDS undergoing mechanical ventilation admitted to intensive care unit (ICU) of Affiliated People's Hospital ofJiangsu University from October 2012 to April 2016 were enrolled. Based on oxygenation index (PaO2/FiO2), the patients were classified into mild, moderate, and severe groups according to Berlin Definition. Twenty-five healthy volunteers were served as controls. Demographics, acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) score, and Murray lung injury score were recorded. Within 24 hours after diagnosis of ARDS, the serum levels of PCT and C-reactive protein (CRP) were determined by enzyme-linked fluorescence analysis (ELFA) and immune turbidimetric method, respectively. The patients were also divided into survival and non-survival groups according to clinical outcome within 28-day follow-up, and the clinical data were compared between the two groups. Spearman rank correlationwas applied to determine the correlation between variables. The predictive value of the parameters on 28-day mortality was evaluated with receiver operating characteristic curve (ROC). Kaplan-Meier survival curve analysis was used to compare different PCT levels of patients with 28-day cumulative survival rate. Results After excluding patients who did not meet the inclusion criteria and loss to follow-up, the final 89 patients were enrolled in the analysis. Among 89 ARDS patients analyzed, 27 of them were mild, 34 moderate, and 28 severe ARDS. No significant differences were found in age and gender between ARDS and healthy control groups. Infection and trauma were the most common etiology of ARDS (55.1% and 34.8%, respectively). Compared with healthy control group, both CRP and PCT in serum of ARDS group were higher [CRP (mg/L): 146.32 (111.31, 168.49) vs. 6.08 (4.47, 7.89), PCT (μg/L): 3.46 (1.98, 5.56) vs. 0.02 (0.01, 0.04), bothP < 0.01], and the two showed sustained upward trends with the ARDS course of disease. Compared with mild group, severe group had significantly higher APACHE Ⅱ and Murray scores. Spearman rank correlation analysis showed that both serum PCT and CRP in patients with ARDS was correlated well with APACHE Ⅱ score (r values were 0.669 and 0.601, respectively, bothP < 0.001), while PCT was weakly but positively correlated with Murray score (r = 0.294,P = 0.005), but not the case of CRP (r = 0.203,P = 0.052). APACHE Ⅱ score and serum PCT in non-survival group (n = 38) were significantly higher than those of the survival group [n = 51; APACHE Ⅱ score: 26.00 (23.00, 28.50) vs. 21.00 (17.00, 25.00), PCT (μg/L): 6.38 (2.82, 9.49) vs. 3.09 (1.08, 3.57), both P < 0.01], but Murray score and CRP level were similar between survivors and non-survivors. The areas under ROC curve (AUC) of APACHE Ⅱ score and PCT for predicting 28-day mortality were 0.781 and 0.793, respectively, which were better than those of AUC of Murray score and CRP (0.606 and 0.561, respectively, allP < 0.05). The AUC of APACHE Ⅱ score combined with PCT was significantly higher than that of PCT (0.859 vs. 0.793,P = 0.048) or APACHE Ⅱ score alone (0.859 vs. 0.781,P = 0.038). Using a PCT cut-off value of > 4.35μg/L for predicting 28-day mortality, the sensitivity and specificity was 92.2% and 63.2%, respectively, and the positive and negative likelihood ratios were 2.50 and 0.12 respectively. Kaplan-Meier survival curve analysis indicated that the patients whose PCT more than 4.35μg/L, had lower 28-day cummulative survival rate as compared with those with PCT ≤ 4.35μg/L (log-rank test: χ2 = 5.013,P = 0.025).Conclusion The elevated serum PCT level in patients with ARDS seems to be correlated well with the severity of lung injury, and appears to be a useful prognostic marker of outcome in the early phases of ARDS.
3.Practice of and reflection on the medical services provision for the Olympic Games
Bu ZHENG ; Sibing ZHANG ; Xiaohong CHEN ; Chuanbo ZANG ; Zhixin JI ; Liang LIU ; Yucheng GUO
Chinese Journal of Hospital Administration 2009;25(6):382-384
Description of the tasks provided by the hospital to Beijing Olympic Games and their characteristics, and a summary of the practice and experiences in the course. For example, a general view of hospital mission, reasonable tasks scheduling, and handling of the four relationships. It holds that medical institutions need to take the opportunity of providing medical services to large international events to upgrade and improve themselves, standardize their management, reinforce normalization in medical practice, and better their brand marketing awareness.
4.Influence of continuous mild sedation on sedative effect and inflammatory response in multiple trauma patients
Yong LI ; Zhaochen JIN ; Yan CAI ; Musen JI ; Hongfeng YANG ; Jing LIU ; Zhixin YU
Chinese Journal of Trauma 2016;32(1):64-68
Objective To determine the influence of continuous mild sedation versus usual sedation on the sedative effect and inflammatory factor level in ICU patients with multiple trauma.Methods In this prospective, randomized double-blind investigation, 58 multiple trauma patients hospitalized from October 2013 to April 2015 were randomized into continuous mild sedation group (continuous group, n =30) and conventional sedation group (conventional group, n =28) using the sealed envelopes.Between-group differences were made on the duration of mechanical ventilation, length of stay in the ICU, ratio of inception of continuous renal replacement therapy (CRRT), tracheotomy rate, accidental extubation rate, sepsis rate, multiple organ failure (MOF) rate and mortality.Serum inflammatory factor levels of the patients were recorded.Results There were 3 deaths (10%) in continuous group versus 4 deaths (14%) in conventional group (P > 0.05).Patients in continuous group showed significantly less time spent on mechanical ventilation [(4.8 ±2.7) vs.(8.9 ±3.1)d] and in the ICU [(10.7 ± 5.4) vs.(16.9 ± 7.3) d] compared with conventional group (P < 0.01).Between-group differences were insignificant regarding the ratio of CRRT inception, tracheotomy rate, accidental extubation rate, sepsis rate and MOF rate (P > 0.05).Serum levels of interleukin (IL)-6, tumor necrosis factor (TNF)-α, Creactive protein (CRP) were lower in continuous group than those in conventional group at 24 h, 48 h and 72 h post-ICU, but significant differences were only observed at 48 h (P < 0.05).At these time periods, serum IL-10 levels in continuous group were significantly higher than those in conventional group (P <0.05).In receiver operative characteristic curve (ROC) analysis, the area under the curve for IL-6, IL-10, TNF-α and CRP in continuous group was 0.726, 0.608, 0.729 and 0.757 respectively at 48 h post-ICU, indicating a predictive value of these markers for sepsis.Conclusion Continuous mild sedation results in shortened length of stay in the ICU and decreased inflammatory response in the treatment of patients with multiple trauma.
5.Electrophysiological study of BDNF gene-modified mesenchymal stem cell transplantation to repair transversely hemisectioned spinal cord injury in rats
Meng JI ; Yuqiu LIU ; Jingjie ZHAO ; Chengwen JIN ; Xin LI ; Zhixin WEI ; Xiaocui WANG
Acta Laboratorium Animalis Scientia Sinica 2014;(3):93-97
Objective To study the effects of bone marrow mesenchymal stem cells modified by brain-derived neuro-trophic factor ( BDNF) gene on the repair of spinal cord injury by electrophysiological assay .Methods Thirty healthy Spra-gue-Dawley rats (male and female) were randomly divided into 3 groups:Blank group, 10 rats (removal of the lamina only and exposed spinal dura mater );spinal cord injury (SCI) group,10 rats;and cell transplantation after SCI group , 10 rats. Eight rats of them were selected randomly and detected their SEP and MEP , and evaluated the degree of recovery of motor scores in the rats at 1 d, 7 d, 14 d, 21 d, 30 d, and 60 d.Result Since 4 days after cell transplantation , the process of hind limbs changes was as follows:at the 1-4 days after injury , the injury side hind limb had flaccid paralysis , mopping the floor walk, the movement of contralateral hind limb was gradually recovered from the initial injury , the injury side hind limb had spastic paralysis in 5-9 days after SCI;during 10-14 days, the injury side had a few activities;the contralateral side re-covered to a less normal state;At 15-21 days, activities of the injury side improved obviously , until the 30th day.The activ-ity and muscle tension degree of the injury side recovered most obviously .After 30 days no more obvious improvement was ob-served.Immunohistochemistry showed that the transplanted mesenchymal stem cells , which were induced and labeled firstly , survived at the damage spinal cord , and behavioral observation found that the cell transplantation improved exercise capacity of the rats injured before .Conclusion Bone marrow mesenchymal stem cells modified by BDNF gene can partially promote the recovery of nerve transmission function and nerve regeneration .
6.The therapeutic value of continuous renal replacement therapy on severe sepsis coincidence with capillary leak syndrome in surgical patients
Yong LI ; Zhaochen JIN ; Musen JI ; Yan CAI ; Jing LIU ; Jun YAN ; Xiulan HU ; Hongfeng YANG ; Qingyan ZHANG ; Zhixin YU
Journal of Chinese Physician 2010;12(10):1346-1349
Objective To investigate the clinical therapeutic value of CRRT on severe sepsis coincidence with capillary leak syndrome in surgical patients. Methods 38 patients suffering from severe sepsis coincidence with capillary leak syndrome were random divided into routine group ( n = 18 ) and CRRT group ( n =20). Both groups were given routine treatment, while the patients of CRRT group were given CRRT in addition. Red blood cell count (RBC), haematoglobin level, blood platelets count, leukocyte count, hematocrit (HCT), plasma-albumin level, central venous pressure ( CVP), arterial blood pressure ( ABP), urinary production change of every hour, oxygenation index condition ( PO2\FiO2 ) were measured at 0, 12, 24, 48,72 hour following routine treatment or CRRT. Additionally, serum levels of tumor necrosis factor- a (TNF-α), interleukin-6 (IL-6) and interleukin-8(IL-8) were determined at the same time. Results Blood platelets count, HCT, plasma-albumin level in CRRT group were significantly higher than those of routine group [72 h: (211. 75 ± 45. 23 ) × 109 vs ( 135.67 ± 41.45 ) × 109 ;0. 43 ± 0. 05 vs 0. 35 ±0. 04; (48. 60 ±4. 76) g/L vs (41.17 ±4. 64) g/L, P <0. 01 ]. WBC were significantly lower than those of routine group[72 h:(7.58 ±2.31) ×109 vs (13.77 ±2.67) × 109, P <0.01]. Change of ABP, PO2\FiO2, urinary production for every hour was notably increased than those of routine group [72 h: (94. 25 ±8.60) mmHg vs ( 84. 22 ± 7. 37 ) mmHg; 345. 25 ± 35. 21 vs 304. 22 ± 38. 74; ( 80. 15 ± 14. 54 ) ml vs (62. 72 ± 12. 33) ml, P <0. 01 ]. The serum levels of TNF-α, IL-6 and IL-8 of CRRT group were markedly decreased compared with those of routine group(72 h:249. 55 ±99. 60 vs 368. 83 ±97. 11 ;600. 75 ±98. 31 vs 718. 94 ± 92. 00 ;665. 35 ±138. 44 vs 843. 22 ±123. 95 , P <0. 01,P <0.05). Conclusions CRRT can significantly improve patient's condition, which may be an effective nechanism to treat the surgical patients with severe sepsis coincidence with capillary leak syndrome.
7.Multi-center clinical report of cardiopulmonary resuscitation with abdominal lifting and compression
Lixiang WANG ; Wei SONG ; Sisen ZHANG ; Jing LI ; Qing LIU ; Duohu WU ; Zhixin JI ; Wenjun MA ; Qiuyu CHEN ; Yujiao WANG ; Yahua LIU
Chinese Journal of Emergency Medicine 2017;26(3):333-336
Objective To study the effectiveness and safety of abdominal lifting and compression method in patients sufferred from cardiac arrest (CA).Methods According to the inclusion and exclusion criteria,72 patients from Hainan People's Hospital and Zhengzhou People's Hospital were enrolled for study of abdominal lifting and compression (ALC) method from January 2014 to June 2015.The markers of respiratory and circulatory performance of all patients were recorded,and re-collected after CPR with ALC.In addition,the data of demographics and clinical signs of patients were collected.The rates of restoration of spontaneous circulation (ROSC) and successful resuscitation were calculated.Differential analysis of singlegroup design univariate quantitative and qualitative data was carried out.Results A total of 72 patients were included finally.The ROSC rate was 15.3% (11/72) after using ALC equipment,and there was no statistically significant difference in rate of ROSC (P =0.566) between ALC and pre-test (13.0%).However,compared with NT group resuscitated without using ALC method or with using chest compression method,the rate of ROSC was significantly improved in the ALC group (15.3% vs.O.1%,P < 0.01).Conclusions Abdominal lifting and compression CPR equipment is stable,portable and safe in practice.Abdominal lifting and compression CPR method has its prominent role in saving patients from respiratory and cardiac arrest,and it is sufficient to overcome the disadvantages of conventional CPR method.
8.Abdomen is the second "home" of the heart
Zhixin JI ; Yahua LIU ; Lixiang WANG
Chinese Critical Care Medicine 2019;31(4):390-392
The heart locates in the chest. When the cardiac arrest is caused by various internal and external factors, it is necessary to establish an artificial circulation for the heart, including external compression. But when the integrity of the chest is destroyed, the "home" of the chest cannot effectively carry out high-quality cardiopulmonary resuscitation (CPR). The abdomen not only possesses 1/4 body blood volume, but also is the abdominal respiratory basis mainly through diaphragm. Through the "abdominal pump" mechanism, intrathoracic pressure is changed by moving the diaphragm up and down, and then exert the effect of indirect "chest pump", "heart pump" and "lung pump". So by using abdomen as the second "home", the purpose of establishing artificial circulation and respiration can be successfully achieved.
9.Early genetic diagnosis in patients with HHT induced severe nosebleed.
Lingchao JI ; Zhixin WANG ; Qian WANG ; Jing ZHANG ; Jingjie JIA ; Shaohua YOU ; Yin BAI ; Xuejun ZHOU ; Suping ZHAO ; Ying ZHOU ; Gehua ZHANG ; Hongtian WANG
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2013;27(5):241-245
OBJECTIVE:
To study the early gene diagnosis of hereditary hemorrhagic telangiectasia (HHT) induced severe nosebleed.
METHOD:
Clinical features of 23 family members in two HHT pedigrees were examined. Genomic DNA was extracted from peripheral blood samples. PCR amplification was conducted to screen ENG and ACVRL-1 genes with their specific primers. Direct sequencing was performed to detect the mutation. Mutation analysis was carried out to evaluate its significance.
RESULT:
A heterozygous c. 263A > G mutation was identified in exon 3 of ACVRL-1 in 6 out of 11 members in NMG-1 pedigree. In GD-2 pedigree, 5 of 11 members carried c. 199C > G mutation. Mutation detection rate was 100% in subjects with nosebleed history and 25% in family members without epistaxis.
CONCLUSION
Gene diagnosis characterized by high sensitivity and specificity is of great practi-cal significance and early genetic screening should be a clinical routine test for HHT induced severe nosebleed.
Activin Receptors, Type II
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genetics
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Adolescent
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Adult
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Antigens, CD
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genetics
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DNA Mutational Analysis
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Endoglin
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Epistaxis
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diagnosis
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etiology
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genetics
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Exons
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Female
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Genetic Testing
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Humans
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Male
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Middle Aged
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Pedigree
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Receptors, Cell Surface
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genetics
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Telangiectasia, Hereditary Hemorrhagic
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complications
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diagnosis
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genetics
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Young Adult
10.Evaluation of Simulated Weightlessness Model of Hindlimb Unloading Miniature Pigs and Their Tissue Damage
Yingxin TU ; Yilan JI ; Fei WANG ; Dongming YANG ; Dongdong WANG ; Zhixin SUN ; Yuexin DAI ; Yanji WANG ; KAN GUANGHAN ; Bin WU ; Deming ZHAO ; Lifeng YANG
Laboratory Animal and Comparative Medicine 2024;44(5):475-486
Objective To establish a weightlessness simulation animal model using miniature pigs, leveraging the characteristic of multiple systems’ tissue structures and functions similar to those of humans, and to observe pathophysiological changes, providing a new method for aerospace research. Methods Nine standard-grade miniature pigs were selected and randomly divided into an experimental group (n=7) and a control group (n=2). The experimental group was fixed using customized metal cages, with canvas slings suspending their hind limbs off the ground, and the body positioned at a -20° angle relative to the ground to simulate unloading for 30 days (24 hours a day). Data on body weight, blood volume, and blood biochemistry indicators were collected at different time points for statistical analysis of basic physiological changes. After the experiment, the miniature pigs were euthanized and tissue samples were collected for histopathological observation of the cardiovascular, skeletal and muscle systems HE and Masson staining. Statistical analysis was also conducted on the thickness of arterial vessels and the diameter of skeletal muscle fibers. Additionally, western blotting was employed to detect the expression levels of skeletal muscle atrophy-related proteins, including muscle-specific RING finger protein 1 (MuRf-1) and muscle atrophy F-box (MAFbx, as known as Atrogin-1), while immunohistochemistry was used to detect the expression of glial fibrillary acidic protein (GFAP), an indicator of astrocyte activation in the brain, reflecting the pathophysiological functional changes across systems. Results After hindlimb unloading, the experimental group showed significant decreases in body weight (P<0.001) and blood volume (P<0.01). During the experiment, hemoglobin, hematocrit, and red blood cell count levels significantly decreased (P<0.05) but gradually recovered. The expression levels of alanine aminotransferase and γ-glutamyltransferase initially decreased (P<0.05) before rebounding, while albumin significantly decreased (P<0.001) and globulin significantly increased (P<0.01). Creatinine significantly decreased (P<0.05). The average diameter of gastrocnemius muscle fibers in the experimental group significantly shortened (P<0.05), with a leftward shift in the distribution of muscle fiber diameters and an increase in small-diameter muscle fibers. Simultaneously, Atrogin-1 expression in the gastrocnemius and paravertebral muscles significantly increased (P<0.05). These changes are generally consistent with the effects of weightlessness on humans and animals in space. Furthermore, degenerative changes were observed in some neurons of the cortical parietal lobe, frontal lobe, and hippocampal regions of the experimental group, with a slight reduction in the number of Purkinje cells in the cerebellar region, and a significant enhancement of GFAP-positive signals in the hippocampal area (P<0.05). Conclusion Miniature pigs subjected to a -20° angle hind limb unloading for 30 days maybe serve as a new animal model for simulating weightlessness, applicable to related aerospace research.