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1.
《American journal of infection control》2022,50(6):618-623
BackgroundDuring COVID-19 pandemic, a shortage of surgical masks (Mask) and respirators (Resp) was experienced worldwide. We aimed to assess its pattern of use, adverse effects and user errors by Portuguese health care professionals (HCP).MethodsA cross-sectional study was conducted through snowball convenience sample, collected by email/ social media to health care organizations. Participants answered an online anonymous survey in March 2021.ResultsMean age of 3052 respondents was 42.1 years old, 83.6% were female and 77.8% provided direct health care to COVID-19 patients. Mean time of use per shift was 6-8 hours in 40.8% of the participants. 28.0% reported never changing it during their shift. Resp use (vs Mask) was more associated with discomfort (58.2% vs 26.8%), affecting task performance (41.5 vs 18.9%) and communication (55.0 vs 40.9%), dyspnea (36.0 vs 14.4%), skin rash (37.5 vs 19.4%) and headache (37.5 vs 19.4%). Frequent user errors included touching the front while in use (70.1% Mask vs 66.3% Resp) and omitting hand hygiene before (61.8% Mask vs 55.0% Resp) or after use (61.3% Mask vs 57.0% Resp). Average number of errors was higher for Mask (4.3), than for Resp (3.2) (all: P < .001).ConclusionsMost HCP admitted an extended use of Mask/ Resp. Resp were more prone to adverse effects and Mask more prone to errors. Strategies to reinforce good practices should be considered. 相似文献
2.
Michael Bach Graham E. Holder 《Documenta ophthalmologica. Advances in ophthalmology》1996,92(3):193-202
The pattern electroretinogram was recorded to checkerboard stimuli with a wide range of check sizes and two stimulus field
sizes. Check sizes ranged from 0.25° to 7° (field size, 16°×14°) and 0.25° to 15° (field size, 32°×27°) in 14 and seven subjects,
respectively. Reversal rate was 4.5/s. For minimal intrusion of blink artifacts the interrupted stimulation technique was
employed. The P50 and N95 components of the pattern electroretinogram were evaluated separately. With both stimulus field
sizes amplitude of P50 and N95 was maximal between 0.75° and 1°. With smaller check sizes the amplitude dropped monotonically.
With larger check sizes field size played a role: with the 16°×14° field, P50 gradually dropped to 89% from 1° to 7°, which
was paralleled by N95 only up to 7°, where N95 dropped to 81% (p<0.05). With the 32°×27° field, there was no significant difference in size dependency between P50 and N95 for large checks,
both components staying constant from 1° to 15° We conclude that there is only minor large-check attenuation of the pattern
electroretinogram, especially with a large field. The apparent field-size dependency may explain previous discrepancies in
the literature. 相似文献
3.
冠心病行为模式与心理状态的相关性探讨 总被引:8,自引:1,他引:7
目的为探讨A型行为在冠心病(CoronaryHeartDisease,CHD)中的作用及与心理状态的相关性。方法对114例CHD及37例非CHD应用心理测验方法对照调查。结果发现A型行为的人易患CHD。CHDA型行为者在焦虑、抑郁、人际关系、认识、敌对性症状因子分较CHD非A型行为者有明显增高。CHD非A型行为者也具有一些特有的心理症状。结论CHD病人的行为模式与病后的某些心理表现呈正相关。 相似文献
4.
5.
目的总结探索在基层医院组建卒中小组,治疗急性脑卒中的模式。方法组建包括社区网络在内的院内卒中小组,对脑卒中患者进行动态的全面评估和系统的个体化治疗。结果规范了急性脑卒中的临床治疗行为,改善了患者预后。结论在基层医院建立卒中小组是一种可行的治疗模式。 相似文献
6.
Michelle McKerral Pierre Lachapelle François Tremblay Robert C. Polomeno Marie-Sylvie Roy Raquel Beneish Franco Leporé 《Documenta ophthalmologica. Advances in ophthalmology》1995,91(2):181-193
The contribution of each monocular pathway to the timing of the binocular pattern visual evoked potential was assessed in situations where a significant interocular timing discrepancy was observed. Monocular and binocular pattern visual evoked potentials to 0.5° checks were recorded from normal subjects, normal subjects in whom one eye was blurred, patients with monocular amblyopia, and patients with resolved unilateral optic neuritis. Normal subjects showed facilitation, while suppression was evidenced in subjects with monocular blurring. In patients with amblyopia, the affected pathway had no effect on binocular pattern visual evoked potential latency, suggesting that the amblyopic eye was suppressed. In contrast, all patients with optic neuritis showed binocular averaging. Our results show that different forms of binocular interaction are evidenced in normal subjects, in amblyopia and in optic neuritis, and suggest that a comparative analysis of monocular and binocular pattern visual evoked potential peak times brings valuable information to the clinical evaluation that could be used to distinguish disease processes further.Abbreviation BPVEP
binocular pattern visual evoked potential 相似文献
7.
Kemal Gündüz Nazmİ Zengİn Süleyman Okudan Mehmet Okka Nİlgün Özbayrak 《Documenta ophthalmologica. Advances in ophthalmology》1995,91(2):155-164
We recorded pattern electroretinograms and visual evoked potentials in a group of selected patients with unilateral uncomplicated branch retinal vein occlusion. To document the effects of preexisting risk factors, patients were divided into three groups: diabetes mellitus, hypertension with hyperlipidemia and no systemic disease. The transient and steady-state pattern electroretinogram and visual evoked potential amplitudes were significantly reduced and visual evoked potential peak times were delayed relative to the fellow eyes and agematched normal subjects. There was a second amplitude reduction relative to the other patient groups in both the affected and fellow eyes of the diabetes mellitus group, which was indicative of an additive effect of diabetes mellitus.Abbreviations BRVO
branch retinal vein occlusion 相似文献
8.
目的观察保心汤对冠心病心绞痛 (气虚血瘀证 )的疗效。方法采用随机对照方法 ,将 62例病人随机分为保心汤组和西药对照组 ,观察两组心绞痛发作情况及心电图、血脂、临床症状等的变化。结果两组在心绞痛、心电图疗效上无显著性差异 (P >0 .0 5 ) ,但在改善症状和对血脂的影响方面保心汤组优于对照组(P >0 .0 5 )。结论保心汤能有效改善心肌缺血和临床症状 ,对血脂有良性影响 相似文献
9.
10.
In some individuals, breathing is greater than at rest following voluntary hyperventilation. Most previous investigations have employed short hyperventilation periods; here we examine the time course of cardio-respiratory measures before, during, and after a 5-min voluntary hyperventilation, maintaining isocapnia throughout. We examined the possible co-involvement of the cardiovascular system; hypothesising that post-hyperventilation hyperpnoea results from an increase in autonomic arousal. In four subjects (two males, two females) of 18 (nine males, nine females) we observed a post-hyperventilation hyperpnoea, characterised by a slow decline of ventilation toward resting levels with a time constant of 109.0 +/- 16.1s. By contrast, heart rate, and systolic and diastolic blood pressure were unchanged from rest during and after voluntary hyperventilation for all subjects. We concluded that males and females were equally likely to exhibit post-hyperventilation hyperpnoea, and suggest that they may be characterised by an increased resting heart rate and the choice of breathing frequency to increase ventilation during the voluntary hyperventilation. We further concluded that post-hyperventilation hyperpnoea is rare, but when present is a strong and lasting phenomenon, and that it is not the result of an increased autonomic arousal. 相似文献