目的 探讨甘草栀子豉膏膻中穴贴敷在心房颤动(房颤)射频消融术后食管损伤相关恶心呕吐中的应用效果.方法 采取便利抽样法,选取2021年1月至2022年2月浙江省浙江大学医学院附属第一医院心内科符合纳排标准的行房颤射频消融术的86例患者作为研究对象,采用计算机产生的随机数法分为干预组和对照组各43例.干预组采用甘草栀子豉膏膻中穴贴敷,对照组采用安慰剂膻中穴贴敷,两组除穴位贴敷外常规护理措施相同.比较两组干预前后的炎症指标,恶心、呕吐、干呕症状严重程度.结果 干预后,干预组、对照组术后CRP分别为(6.71±6.42)mg/L、(15.65±11.83)mg/L,白细胞计数分别为(7.46±1.82)×109/L、(9.96±3.15)×109/L,中性粒细胞百分比分别为(69.89±9.49)％、(79.99±10.10)％;术后上消化道症状总分分别为(9.95±1.34)分、(26.62±2.27)分,两组比较差异均具有统计学意义(均P<0.001).结论 甘草栀子豉膏膻中穴贴敷可减轻房颤射频消融术后炎性反应,对缓解恶心呕吐干呕症状效果显著.

综述了早期运动训练对提高急性失代偿性心力衰竭患者运动耐量的病理生理机制,运动训练的介入时机、实施方法,早期运动训练的安全性,为患者早期运动训练方案的制定及实施提供依据.

本文就心脏病患者运动恐惧现象的研究现状进行综述,从运动恐惧的概念和心脏病患者运动恐惧的发生情况及影响因素、评估工具、不良影响及干预措施等方面进行归纳与总结,旨在引起国内临床医护人员对心脏病患者运动恐惧的重视,有助于早期发现患者运动恐惧现象并进行干预,从而改善心脏病患者预后及提高生活质量.

Due to their inherent magnetomechanical coupling properties,nowadays the magnetostrictive materials are widely used in many applications.However,when the magnetostrictive materials are considered for device design and control applications,it is necessary to take into account that they typically operate in a nonlinear manner and hysteresis exists in the input-output relations.To take full advantages of the materials' properties,as well as to analyze,control,and optimize the magnetostrictive devices,an efficient model which can capture the complex nonlinearities with coupled hysteretic effects is essential.In the current paper,a coupled nonlinear differential equation is proposed to model the hysteretic dynamics of one-dimensionalmagnetostrictive materials based on the modified Landau phenomenological theory of phase transition.A non-convex free energy function is constructed to model the irreversible magnetization orientation switching and magneto-strain.Each of its minima is associated with one magnetization orientation in the materials.The nonlinear constitutive laws accounting for magnetostriction effects are obtained by using the conditions of thermodynamic equilibrium.The hysteretic loops and butterfly-shaped behaviors in the magnetic and mechanical fields are both successfully modeled.Comparison of the model results with the experimental results reported in literature is presented,and the capability of the model is verified.By applying the proposed differential equation model for hysteretic dynamics,the numerical expenses have been largely reduced as compared to other models,whilst the accuracy is very satisfactory.These facts indicate that the current model leads to more efficient implementations,which are of particular importance for the model-based control theory and applications when the magnetorestrictive materials are involved.