Sudden cardiac arrest is one of the critical clinical syndromes in emergency situations. A cardiopulmonary resuscitation (CPR) is a necessary curing means for those patients with sudden cardiac arrest. In order to simulate effectively the hemodynamic effects of human under AEI-CPR, which is active compression-decompression CPR coupled with enhanced external counter-pulsation and inspiratory impedance threshold valve, and research physiological parameters of each part of lower limbs in more detail, a CPR simulation model established by Babbs was refined. The part of lower limbs was divided into iliac, thigh and calf, which had 15 physiological parameters. Then, these 15 physiological parameters based on genetic algorithm were optimized, and ideal simulation results were obtained finally.
Algorithms ; Cardiopulmonary Resuscitation ; Death, Sudden, Cardiac ; Electric Impedance ; Hemodynamics ; Humans ; Leg ; Models, Cardiovascular

· Mesenchymal stem cells ( MSCs ) are a population of multipotent stem cells with various neurotrophins from bone marrow which are widely used in tissue, cell repair and alternative research.Recently, some researches have shown that MSCs could enhance the viability of neurons under a pathological circumstance by secreting some neurotrophins. So the neuroprotection of MSCs can provide a new method of the treatment on retinopathy that it possible to promote cells survial and functional recovery.Here we make a brief review on the secretory function of neurotrophin and neuroprotective effects of MSCs on retinal cells and its application in the treatment of retinal disease.

Transjugular intrahepatic portosystemic shunt (TIPS) has been developed for two decades in order to treat portal hypertension accompanying with upper gastrointestinal hemorrhage and refractory ascites.TIPS may cause the development of hepatic encephalopathy (HE).TIPS induces portalsystemic shunt and leads to hemodynamics chaos. Hepatic encephalopathy belongs to the complications of the portal hypertension. There are many possible predictors of the post-TIPS HE. The relationship between TIPS and HE was reviewed.

Objective To describe the anxiety status of new nurses in emergency department so as to put forward strategies for nursing management. Methods Thirty-two new nurses (working time less than 2 years) from emergency department of two class Ⅲ- A general hospitals in Xiamen were surveyed by using Zung self-rating anxiety scale (SAS). Results The average of SAS total score showed significant difference from that of the Chinese norm, but no significant difference could be seen in the score of SAS be-tween college and baccalaureate nurses.Nurses with different working length showed significant difference in SAS score. Conclusions Anxiety status of new nurses in emergency department is serious, nursing man-agers should make more efforts to conduct mental health education and improve psychological quality of new nurses in emergency department to relieve their anxiety.

Humans ; Immunohistochemistry ; Lymphoma, Large B-Cell, Diffuse ; classification ; pathology

Objective To evaluate the use of magnifying endoscopy combined with narrow band im-aging (NBI) system in diagnosis of early gastric cancer. Methods From March 2008 to December in 2008, a total of 56 patients with suspected gastric mucosal lesions were enrolled in the study. The lesions were ob-served with magnifying endoscopy combined with NBI and indigo-earmine-chromoendoscopy, and the results were compared with pathologic diagnosis from targeted biopsies. Results Out of 56 patients, 16 were diag-nosed as early gastric cancer pathologically. The accordance rate with the pathological diagnosis, sensibility, specificity, false positive rate and false negative rate of the magnifying endoscopy combined with NBI system were 94.6% (53/56), 93. 8% (15/16), 95.0% (38/40), 5.0% (2/40) and 6. 3% (1/16), respec-tively; while those of chromoendoscopy were 91.1% (51/56), 87. 5% (14/16), 92. 5% (37/40), 7. 5% (3/40) and 12. 5% (2/16), respectively (P >0.05). There was no difference between NBI and chro-moendoscopy in regarding of observing pit pattern, however, NBI was superior in displaying intrapapillary capillary loop. Conclusion Combination of magnifying endoscopy and NBI provides clear images of gas-tric mucosa and intrapapillary capillary, which is useful in diagnosis of early gastric cancer and can improve accuracy of biopsy. When combined with chromoendoscopy, it can further improve the yield of diagnosis.

Objective To explore the influence of follow-up by telephone on adherence and quality of life for breast cancer patients with hormonal therapy.Methods Totally 78 breast cancer patients with hormonal therapy were divided into the intervention group (40 cases) and the control group (38 cases).The control group were carried on routine guidance treatment and enjoined regular subsequent visit.The patients in intervention group were carried on the above-mentioned treatment and also receive regular follow-up by telephone.Through the follow-up by telephone we provided guidance for present and will present problems.Adherence for breast cancer patients with hormonal therapy and cancer rehabilitation evaluation system-short form(CARES-SF) were used to investigate the patients' adherence and quality of life six month after the intervention.Then we compared the adherence and quality of life before,six month of the intervention.The changes of adherence and quality of life scores were analyzed by repeated-measure ANOVA.Results The score of quality of life in the intervention group after 6 month of intervention was (25.43 ± 6.04),while in the control group was (40.61 ± 7.73),the difference was significant between the two groups,P＜0.05.The score of medication adherence in the intervention group after 6 month of intervention was (8.57 ± 6.20),while in the control group was (14.12 ± 6.63),the difference was significant between the two groups,P＜0.05.Conclusion Follow-up by telephone can improve adherence and quality of life for breast cancer patients with hormonal therapy.

Liver metastasis is the leading cause of death from colorectal cancer.Surgical treatment is so far the best choice for the treatment of colorectal liver metastases (CRLM).However,how to suitably select an individualized chemotherapy in perioperative period and surgical time and tool is still under controversy.Therefore,the key factors of improving the prognosis of patients with CRLM include overall evaluation of the patients and their preoperative examination outcomes,dividing patients into different groups based on different therapeutic goals,understanding different therapeutic goals of each group,selecting suitable chemotherapy and targeted therapy,ensuring surgical time (synchronous or stepwise resection) and tools (minimally invasive or open surgery) through multidisciplinary team model.

Memory T cells play an important role in the pathogenesis of tumors as a result of the long term of tumor immunity and the heterogeneity of T cells. Great progress in the studies on the generation, classification, mechanism of maintenance and function of memory T cells in tumor immunity have been made in recent years, which may facilitate our understanding of immunological memory and the clinical therapy of tumor.

[Objective]To evaluate the application of sonographic measurements of the thickness of transverse carpal ligaments in CTS(carpal tunnel syndrome) patients.[Methods]Fifty-two wrists from 40 patients with CTS confirmed by surgery and 32 wrists from 20 healthy individuals(control group) underwent sonographic examination of the thickness of transverse carpal ligaments at the level of pisiform bone and the hook of the hamate bone in transverse plane by the same operator.[Results]The thickness of transverse carpal ligaments in CTS patients was(0.41?0.10) cm at hamate hook level and(0.35?0.11) cm at pisiform level versus(0.28?0.11) cm and(0.20?0.08) cm in the control group.There was significant difference in the mean value of thickness of transverse carpal ligaments hetween the two groups at the two levels.[Conclusion]Ultrasonography examination of the thickness of transverse carpal ligaments is a new and valuable technique in the diagnosis of carpal tunnel syndrome and is much helpful to choose operation methods.