Application of multimodal electromagnetic navigation in endoscopic endonasal skull base anatomical measurement of fresh cadavers / 解剖学报

Objective Electromagnetic navigation was used to observe and measure important anatomical structures through endoscopic endoscopic approach (EEA) to the ventral skull base to provide data for clinical surgery. Methods Using electromagnetic navigation to measure the anatomical structure of the central and paracentral ventral skull base on 10 fresh cadavers, the internal carotid artery (ICA) was the most important. Results Electromagnetic navigation helped to determine the course of important neurovascular. The ICA of the ventral skull base was divided into 5 segments+ 7 major branches, and the length and course of each were measured and recorded. Conclusion The identification and protection of ICA is the key to EEA treatment of ventral skull base lesions, and electromagnetic navigation assistance can improve the efficiency and safety of EEA surgery.

Identification of chemical constituents in Zhachong Shisanwei Pills by UPLC-Q-TOF-MS/MS / 中国中药杂志

Zhachong Shisanwei Pills, composed of 13 Chinese medicinal materials, are used for treating the diseases such as hemiplegia, pain of muscles and bones, rheumatism, and joint pain. The chemical composition and pharmacodynamics of Zhachong Shisanwei Pills have not been reported. Ultra-performance liquid chromatography/quadrupole-time-of-flight tandem mass spectrometry(UPLC-Q-TOF-MS/MS) was employed to quickly identify the chemical components of Zhachong Shisanwei Pills, which was performed with Shim-pack GIST C_(18) column(4.6 mm×150 mm, 5 μm). The gradient elution was conducted with methanol-0.05% acetic acid as the mobile phase. Electrospray ionization mass spectrometry(ESI-MS) was carried out in both positive and negative ion modes. The compounds were identidied based on accurate relative molecular weight, fragment ion species, and the MS data of reference substances and in literature. In conclusion, a total of 98 compounds were identified, including 19 organic acids, 36 flavonoids, 13 volatile oils, 8 tannins, 5 2-(2-phenylethyl)chromones, 5 amino acids, 3 sesquiterpenoids, 3 alkaloids, and 2 other compounds. This study characte-rized the chemical components of Zhachong Shisanwei Pills rapidly for the first time, laying a foundation for further research on the pharmacodynamic material basis and quality evaluation.

Clinical features, electrophysiological characteristics and treatment of thallium poisoning in twelve patients / 中国神经精神疾病杂志

Objective To investigate the clinical and electrophysiological features and treatments for thallium poisoning. Methods Twelve cases of thallium poisoning patients were from hospital 307 of PLA between June 2012 and October 2017 and their data were retrospectively analyzed. Twelve sex-and age-matched healthy subjects were selected as control group. Result The clinical manifestations of thallium poisoning were mainly symptoms of nervous and gastrointestinal systems as well as hair loss. Thallium poisoning compromised function of motor nerves including the prolonged distal latency of ulnar and common peroneal nerve, the decreased amplitude and slowed nerve conduction velocity of common peroneal nerve and tibial nerve, which were statistically different from control group (P<0.05). Thallium poisoning also impaired function of sensory nerve including the prolonged distal latency and decreased amplitude of median , ulnar and sural nerve, the slowed nerve conduction velocity of median , ulnar, radial and sural nerve which were statistically different from control group (P<0.05 or P<0.01 ). Electroencephalogram (EEG) of 7 cases revealed mild abnormality EEG in 6 cases and moderate abnormality EEG in one case. Patients received potassium supplementation, diuresis, oral Prussian blue, intramuscular injection of sodium dimercaptopropanesulfonate and other treatment. Severe cases had good outcome after hemoperfusion and plasma exchange. Conclusions Thallium poisoning is rare in clinic and typical clinical features and electrophysiological examination are helpful to the diagnosis and differential diagnosis of diseases. Timely increasing thallium excretion and symptomatic support treatment can effectively improve the prognosis of the patients.

Prone positioning ventilation for treatment of acute lung injury and acute respiratory distress syndrome / 中华创伤杂志(英文版)

Patients who are diagnosed with acute lung injury/acute respiratory distress syndrome (ALI/ARDS) usually have ventilation-perfusion mismatch, severe decrease in lung capacity, and gas exchange abnormalities. Health care workers have implemented various strategies in an attempt to compensate for these pathological alterations. By rotating patients with ALI/ARDS between the supine and prone position, it is possible to achieve a significant improvement in PaO2/FiO2, decrease shunting and therefore improve oxygenation without use of expensive, invasive and experimental procedures. Prone positioning is a safe and effective way to improve ventilation when conventional strategies fail to initiate a patient response. Because a specific cure for ARDS is not available, the goal is to support the patients with therapies that cause the least amount of injury while the lungs have an opportunity to heal. Based on current data, a trial of prone positioning ventilation should be offered to the patients who have ALI/ARDS in the early course of the disease. Published studies exhibit substantial heterogeneity in clinical results, suggesting that an adequately sized study optimizing the duration of proning ventilation strategy is warranted to enable definitive conclusions to be drawn.

Effect of sleep quality on day cycle fatigue in ward nurses / 中华劳动卫生职业病杂志

<p><b>OBJECTIVE</b>To explore the effect of sleep quality on day cycle work fatigue in ward nurses.</p><p><b>METHODS</b>Through a cluster sampling of three hospitals, 479 clinical frontline nurses were investigated in Hangzhou, Zhejiang, China. Using Pittsburgh Sleep Quality Index (PSQI) to evaluate sleep quality; Using self-reported work-related fatigue symptom scale to evaluate day cycle fatigue status; common information was also collected.</p><p><b>RESULTS</b>The sleep quality of ward nurses is generally poor, with total PSQI score 7.31 +/- 3.45. 41.75% ward nurses have total PSQI score over 7, the total PSQI score showed a negative linear correlation with educational background (r = -0.11, P = 0.01), educational background also represented a negative correlation with sleep quality, sleep latency and sleep duration; there are no correlation between sleep and marriage, work age, professional title and duty. Work-related fatigue was closely correlated with sleep quality: Total PSQI score showed a positive correlation with four daytime points fatigue in the next day (r = 0.42, r = 0.34, r = 0.25, r = 0.33, P < 0.01). Total PSQI score is also related to five fatigue factors in four daytime points. There are significant correlation between seven factors of sleep and fatigue levels of four time points. Multiple regression analysis showed that Sleep quality, day function; sleep disturbance and drug use pay important part in work fatigue. There is no correlation between sleep quality and delayed off-work (r = 0.06, P = 0.17).</p><p><b>CONCLUSION</b>Managers should think highly of sleep quality of ward nurses, acknowledge its degree of work fatigue and apply evidence based methods arrange work responsibility and follow sheet, then rationalize human resources management, emphasize sleep hygiene education, improve sleep quality and reduce work fatigue.</p>