4-Chloro­phenyl 2-oxo-2H-chromene-3-carboxyl­ate

In title compound, C16H9ClO4, the coumarin ring system is approximately planar [maximum deviation = 0.056 (1) Å] and is oriented with respect to the benzene ring at an angle of 22.60 (7)°. Inter­molecular C—H⋯O hydrogen bonding is present in the crystal

Single application on iris localization technology in excimer laser for astigmatism

AIM:To discuss the single application on iris localization technology in excimer laser for the treatment of astigmatism. <p>METHODS:Totally 203 cases(406 eyes)of laser <i>in situ</i> keratomileusis(LASIK)in the treatment of compound myopic astigmatism patients were operated from November 2011 to November 2012 in our hospital. They were divided into two groups. One was observation group using iris localization and the other was control group using routine operation. Patients in the observation group of 100 cases(200 eyes), aged 18-43 years old, spherical diopter was -1.25 to -8.75D, astigmatism was -1.0 to -3.25D. In control group, 103 patients(206 eyes), aged 19-44 years old, spherical diopter was -1.75-9.50D, astigmatism was -1.0 to -3.25D. The patients in the observation group before the application of WaveScan aberrometer check for iris image, spherical lens, cylindrical lens and astigmatism axis data operation, only single application of iris location, without using wavefront aberration guided technology, laser cutting patterns for conventional LASIK model, spherical, cylindrical mirror and astigmatism axis data source to preoperative wavefront aberration results. The control group received routine LASIK. It was applicated comprehensive optometry optometry respectively to examine astigmatism and axial, based on the computer analysis during the preoperative, 1wk after the operation, and 6mo. Analysis of using SPSS 17 statistical software, it was independent-sample <i>t</i> test between the two groups of residual astigmatism and astigmatism axis. <p>RESULTS:Postoperative residual astigmatism, the observation group was significantly better than the control group. Astigmatism axial measurement after operation, the observation group was significantly less than that of the control group. Postoperative visual acuity at 6mo, the observation group was better than that of the control group. The difference was statistically significant. <p>CONCLUSION: For patients who cannot complete the wavefront aberration guided treatment of astigmatism, can separate the application of wavefront aberration analyzer automatic iris recognition technology to improve precision of astigmatism treatment, give full play to advanced technical performance of equipment, which has good application value

对乙酰氨基酚中毒1例的抢救治疗和护理

Acetaminophen is commonly used for fever, joint pain, neuralgia, and migraine for its antipyretic and analgesic effects in clinical practice. While large dose of acetaminophen may result in toxic, which causes coma and respiratory failure, cardiac arrest and other organ damage. The paper discusses nursing methods of condition monitoring during continuous blood purification treatment, prevention of infection and nutritional support in patients with acetaminophen poisoning by case analysis.对乙酰胺基酚是临床常用的解热镇痛药，常用于发热、关节痛、神经痛和偏头痛的治疗，大剂量对乙酰胺基酚口服可引起中毒，导致昏迷、呼吸衰竭、心脏骤停等器官的损害。本文通过病例分析，探讨对乙酰氨基酚中毒患者行连续性血液净化治疗期间病情监测、预防感染、营养支持等护理方法

连续性血浆滤过吸附治疗重度百草枯中毒致多脏器功能衰竭患者的护理

Objective: To explore continuous plasma adsorption filtration in treatment with multiple organ failure in severe paraquat poisoning patients and its nursing care. Methods: 52 cases of severe paraquat poisoning were collected from December2009 to May 2009 in poisoning rescue center of affiliated hospital of logistics institute of armed police forces. They were treated with continuous plasma adsorption filtration. Summarize the experience of treatment and nursing. Results: Plasma adsorption treatment of 38 times tace, continuity of static - static hemofiltration treatment of 56 times, continuity of plasma filtration adsorption treatment 64 times, the rescue success rate of 57.96%. Conclusion: Continuity of plasma filtration adsorption treatment 64 times, can effectively improve the rescue success rate of patients with paraquat.目的  探讨对重度百草枯中毒多脏器功能衰竭患者行连续性血浆吸附滤过治疗的护理方法。方法  对本院中毒急救中心2009年12月—2013年5月期间收治的52例重度百草枯中毒患者进行连续性血浆滤过吸附治疗（CPFA）,总结分析治疗、护理的经验。结果  共进行血浆吸附治疗38次，连续性静-静脉血液滤过治疗56次，连续性血浆滤过吸附治疗64次，抢救成功率57.96%。结论  连续性血浆滤过吸附治疗可以有效的提高百草枯中毒患者的抢救成功率

羊水栓塞合并DIC、多脏器功能衰竭1例的ICU护理体会

Objective: To summarize nursing experience of amniotic fluid embolism and a series of serious complications during natural birth. Methods: In August 2013, our hospital successfully treated patients with amniotic fluid embolism a, summarize the nursing measures. Results: By ICU nurses of intensive care patients turn to ordinary ward, in a stable condition after discharged from hospital. Conclusion: Taking positive measures to care patients with severe complications are the key to get better.目的  总结顺产发生羊水栓塞及一系列严重并发症的护理体会。方法  2013年8月本院成功救治1例羊水栓塞患者，总结其护理措施。结果  通过ICU护士的精心护理患者转入普通病房，病情稳定后出院。结论  采取积极的措施治疗护理各严重并发症是患者病情好转的关键

无创正压通气非无创使用在临床的疗效观察与护理

Objective: To observe the clinical effect of noninvasive positive pressure ventilation (NIPPV) in the noninvasive treatment Methods: After invasive mechanical ventilation during treatment line offline test failed for many times, the effect of noninvasive positive pressure ventilation therapy was observed. Results: Tracheotomy in noninvasive positive pressure ventilation after treatment, patients with no bosom frowsty, breath, breathing and other symptoms, can sleep well and have a good diet. Conclusion: Noninvasive positive pressure ventilation of noninvasive use has important clinical significance.目的  观察无创正压通气（NIPPV）非无创使用时的治疗效果。方法  经有创机械通气治疗期间多次行脱机试验失败，给予无创正压通气治疗的观察与护理。结果  气管切开处接无创正压通气治疗后，患者无胸闷、憋气、喘息等症状，睡眠饮食可。结论  无创正压通气非无创使用时有重要临床意义

急性曼陀罗中毒患者临床护理观察

Mandala is used medicinally to treat cough and asthma, conscious sedation. Entire individual plant is poisonous, and the toxic substances are hyoscyamine and scopolamine and atropine, etc. It is a rare case that patients were poisoned by Mandala in clinical practice. More reports were about the cases that patients were poisoned by seeds, fruit, leaf and flower. The toxicity would stimulate and restrain the central nervous system successively, block the reactions of acetylcholine, resist and paralyze the parasympathetic nerve. The paper discusses continuous blood purification treatment and clinical nursing of mandala poisoning patients by case analysis.曼陀罗内服可用来平喘止咳，镇静麻醉。曼陀罗全株有毒，毒性物质为莨菪碱、东莨菪碱和阿托品等。在临床中遇到的曼陀罗中毒罕见。有病例报道多为误食曼陀罗种子、果实、叶、花所致，其毒性作用是对中枢神经先兴奋后抑制，阻断乙酰胆碱反应，对抗和麻痹副交感神经。本文通过病例分析，探讨如何对曼陀罗中毒患者行连续性血液净化治疗、临床护理