手术室连续性护理对剖宫产产妇心理及生理应激效果探析

探讨手术室连续性护理对剖宫产产妇心理及生理应激效果。方法 回顾性分析2020年1月至2022年1月我院收治的80例剖宫产产妇的临床资料,用随机数字表方法把产妇平均分成两组。对照组40例剖宫产产妇接受常规护理,研究组40例产妇接受手术室连续性护理。观察和比较两组剖宫产产妇的心理及生理应激情况差异、护理满意度。结果 研究组剖宫产产妇的心理应激指标,即焦虑自评量表和抑郁自评量表评分都要明显低于对照组;研究组的生理应激指标明显优于对照组;研究组的护理满意度明显高于对照组,组间差异明显,有统计学意义(P<0.05)。结论 手术室连续性护理对剖宫产产妇心理及生理应激情况的改善有着确切效果,可以明显改善剖宫产产妇的心理状态,减少生理应激反应,提高产妇的临床护理满意度,具备很高的临床应用与推广价值。

丙泊酚减轻颈丛麻醉甲状腺手术中应激反应效果观察

目的:探究丙泊酚减轻颈丛麻醉甲状腺手术中应激反应的效果观察,以完善临床。方法:选自我院自2007年8月～2011年8月期间收治124例进行甲状腺摘除术的患者,排除以上疾病之后将所选取的全部患者进行随机分组,分为采用氟芬组(即对照组)以及使用丙泊酚患者组(即试验组),每组均有62名患者,两组患者在性别、年龄、体重、手术时间等均无统计学意义。结果:试验组的患者血糖、皮质醇、HR、MAP等一系列可以反映应激的指标患者手术中和手术后都是低于对照组的,但是试验组的皮质醇在手术过程中略有升高,但术毕后仍与患者麻醉之前是接近的,表明丙泊酚是可以对患者的应激反应降低的。两组患者手术中、手术结束后血糖均比麻醉前增加,但试验组在手术中以及手术结束后均低于对照组。结论:在一定程度上丙泊酚是可以对呼吸系统进行抑制的,但是如果对患者用药量过大或是进行注射的速度过快的话还会导致患者的潮气量减低,呼吸频率下降甚至还会使得患者出现暂时性的呼吸停止,在手术中应加强监测也是对其很必要。

腹腔镜子宫肌瘤剔除术治疗子宫肌瘤效果及对应激反应的影响

目的分析腹腔镜子宫肌瘤剔除术治疗子宫肌瘤的效果及对应激反应的影响。方法将88例子宫肌肌瘤患者随机分为对照组和研究组各44例,对照组应用开腹手术治疗,研究组应用腹腔镜子宫肌瘤剔除术。对比2组的围术期指标,手术前后的应激指标。结果研究组的手术用时、术后肠道功能恢复时间和住院时间均短于对照组,术中出血量少于对照组(P<0.05);2组术后的血清皮质醇(COS)、β-内啡肽水平均升高(P<0.05),但研究组低于对照组(P<0.05)。结论与开腹手术比较,腹腔镜子宫肌瘤剔除术具有手术时间短、创伤轻、术后恢复快的特点,且对患者造成的应激反应更小,值得临床推广。

Therapeutic Effect of Zygophyllum cornutum on Metabolic Disturbances, Oxidative Stress in Heart Tissue and Histological Changes in Myocardium of Streptozotocin-induced Diabetic Rats

The present study depicts the therapeutic effect of Zygophyllum cornutum methanolic extract （ZCME） on metabolic disturbances, oxidative stress in heart and myocardium histological changes in streptozotocin （STZ）-induced diabetic rats. Three days after diabetes induction, ZCME was administered orally for six weeks （700 mg/kg bw/day）. Serum glucose and lipid profile were evaluated. Reduced glutathione （GSH）, catalase （CAT） and thiobarbituric acid reactive substances （TBARS） were measured in heart tissue. The results showed increased levels of blood glucose, total cholesterol （TC）, LDL cholesterol （LDL-C） and triglyceride （TG） in the diabetic rats. On the other hand, the level of HDL cholesterol （HDL-C） decreased. Compared to the control normal rats, the level of TBARS in heart tissue was markedly increased while GSH and CAT were significantly modified in the diabetic rats. Oral administration of ZCME has normalized serum glucose and lipid profile. TBARS were significantly reduced in heart while CAT and GSH were markedly normalized. Myocardium sections showed the absence of histological changes observed in the diabetic rats. The study suggests that Zygophyllum cornutum may provide a useful therapeutic option in the reversal of metabolic disturbances and oxidative stress-induced cardiac dysfunction in diabetes mellitus.

Finite element simulation of wireless structural vibration control with photostrictive actuators

A recently emerging family of smart materials,photostrictive materials,exhibit large photostriction under uniform illumination of high-energy light.This photostriction mechanism arises from a superposition phenomenon of photovoltaic and converse piezoelectric effects.A photostrictive type of opto-electromechanical actuator activated by high-energy lights can introduce actuation and control effects without hard-wired connections.The control light intensity applied to the actuator is proportional to the transverse velocity at a positioned point,which is measured by a laser vibrometer.In this paper,photostrictive films are numerically analyzed to evaluate their use as wireless actuators for future remote vibration control of flexible structures.A novel opto-electromechanical solid shell finite element formulation is developed for accurate analysis of the multiple physics effects of photovoltaic,pyroelectric and thermal expansion of photostrictive materials.Available experimental data and analytical solutions have been used to verify the present finite element results.The simulation in this study demonstrates that the present formulation is very reliable,accurate and also computationally efficient and that the use of photostrictive actuators can provide good controllability of structural vibration.

X-ray observation on how axial compression stimulates tibial fracture healing

Objective： To validate the hypothesis that there exists an optimal axial compression stress range to enhance tibial fracture healing.Methods： Rabbits with a surgically induced V-shaped tibial fracture were separated into 2 main groups： the control group （C Group, n=6） without application of any axial compression stress stimulation postoperatively and the stimulation group （ S Group, n=90）. The S Group was further divided into 20 subgroups （S11 to S54） in terms of 5 axial compression stress stimulation levels （112.8 kPa, 289.8kPa, 396.5 kPa, 472.7 kPa, and 602.3 kPa） and 4 experimental endpoints （1, 3, 5 and 8 weeks after operation）. A custom made circular external fixator was used to provide the axial compression stress of the fracture sites. Based on X-ray observation, a fracture healing scoring system was created to evaluate the fracture healing process.Results： At 8 weeks after operation, there existed a ＂⌒-shape＂ relationship between healing score and axial compression stress stimulation level of fracture site. The optimal axial compression stress stimulation ranged from 289.8 kPa to 472.7 kPa, accompanying the best fracture healing, i.e. the fracture line became indistinct or almost disappeared, and a lot of callus jointed the two fracture ends. Meanwhile, at 5 weeks after operation, corresponding to the relatively low healing scores, there was a fracture healing performance similar to that at 8 weeks. Besides, at 1 or 3 weeks after operation, for all the axial compression stress levels （0-602.3 kPa）, no obvious healing effect was found.Conclusions： It is implied from the stated X-ray observation results in this study that the potential optimal axial compression stress stimulation and optimal fracture healing time are available. The axial compression stress level of 289.8-472.7 kPa and fracture healing time of more than 8 weeks jointly comprise the optimal axial compression stress stimulation conditions to enhance tibial fracture healing.