无牵开器动态牵拉技术治疗高血压脑出血

目的探讨无牵开器动态牵拉技术治疗高血压脑出血的手术方法及临床疗效。方法回顾性分析采用无牵开器动态牵拉技术治疗的40例高血压脑出血患者的临床资料;分析手术技术特点、手术效果、脑牵拉伤、术后恢复情况。结果所有患者均在脑内血肿清除术中采用无牵开器动态牵拉技术;平均手术时间(154.75±26.21)min;平均血肿清除率(92.08±6.17)%;有6例患者(15%)发生术野再出血,2例患者(5%)发生脑牵拉伤。术后3个月的改良Rankin量表(modified Rankin scale,mRS)评分:1级1例,2级6例,3级18例,4级11例,5级3例,6级1例。结论在高血压脑出血血肿清除术中,采用无牵开器动态牵拉技术,所需硬件设备少,手术效果好,术后并发症少,并能提高患者生活质量,值得在基层医院推广应用。     

Photoacoustic treatment mitigates cognitive dysfunction in a model of sleep-wake rhythm disturbance

Sleep-wake rhythm disturbances,which are characterized by abnormal sleep timing or duration,are associated with cognitive dysfunction.Photoacoustic treatments including light and sound stimulation have been found to be effective in modulating sleep patterns and improving cognitive behavior in abnormal sleep-wake pattern experiments.In this study,we examined whether light and sound interventions could reduce sleep-wake pattern disturbances and memory deficits in a sleep rhythm disturbance model.We established a model of sleep rhythm disturbance in C57 BL/6 J mice via a sleep deprivation method involving manual cage tapping,cage jostling,and nest disturbance.We used a Mini Mitter radio transmitter device to monitor motor activity in the mice and fear conditioning tests to assess cognitive function.Our results indicated that an intervention in which the mice were exposed to blue light(40-Hz flickering frequency)for 1 hour during their subjective daytime significantly improved the 24-hour-acrophase shift and reduced the degree of memory deficit induced by sleep deprivation.However,interventions in which the mice were exposed to a 40-Hz blue light at offset time or subjective night time points,as well as 2 Hz-blue light at 3 intervention time points(subjective day time,subjective night time,and offset time points),had no positive effects on circadian rhythm shift or memory deficits.Additionally,a 2000-Hz sound intervention during subjective day time attenuated the24-hour-acrophase shift and memory decline,while 440-Hz and 4000-Hz sounds had no effect on circadian rhythms.Overall,these results demonstrate that photoacoustic treatment effectively corrected abnormal sleep-wake patterns and cognitive dysfunction associated with sleep-deprivation-induced disturbances in sleep-wake rhythm.All animal experiments were approved by the Experimental Animal Ethics Committee of Drum Tower Hospital Affiliated to the Medical College of Nanjing University,China(approval No.20171102)on November20,2017.