知母种子质量分级标准的研究

目的:研究制定知母种子的质量分级标准。方法:通过对不同产地20个批次知母种子的净度、千粒质量、含水量、生活力、发芽率等指标测定和外观形态观察,利用Excel 2010、SPSS 20.0软件对以上数据进行相关分析、主成分以及K-均值聚类分析,初步确定知母种子质量分级指标和分级标准,且以各等级知母种子分别在田间对比种植,通过测定1年产苗量,2年药材产量及有效成分含量,验证知母种子质量分级标准的合理性。结果:Ⅰ级知母种子发芽率不低于85%,千粒质量不低于7.5 g,净度不低于95%;Ⅱ级知母种子发芽率不低于70%,千粒质量不低于7.0 g,净度不低于85%;Ⅲ级知母种子发芽率不低于65%,千粒质量不低于6.0 g,净度不低于80%;各级种子含水量均小于10%。结论:发芽率和千粒质量为知母种子质量分级标准的主要指标,净度和含水量为参考指标。不同等级知母种子种植后对知母种苗产量、药材产量及质量会有显著影响。该研究制定的知母种子质量分级标准科学可行、符合生产实际,为知母的种子质量评价和规范化栽培提供参考依据。     

腹腔镜修补术治疗急性胃穿孔患者的效果

目的观察腹腔镜修补术治疗急性胃穿孔患者的临床效果。方法选取单县海吉亚医院收治的56例胃穿孔患者作为研究对象,按照入院时间先后顺序分成观察组(n=28)和对照组(n=28),两组患者均行急诊手术,对照组行传统开腹修补术,观察组行腹腔镜修补术,比较两组手术情况、临床疗效及术后并发症发生情况。结果观察组手术时间、排气时间、下床活动时间和住院时间均明显短于对照组,术中出血量明显少于对照组,差异均有统计学意义(P<0.05);观察组治疗有效率为96.43%,明显高于对照组的67.86%,差异有统计学意义(P<0.05);观察组并发症发生率为3.57%,明显低于对照组的28.57%,差异有统计学意义(P<0.05)。结论腹腔镜修补术治疗急性胃穿孔患者可明显提高治疗有效率,改善手术指标水平,降低并发症发生率的效果优于传统开腹修补术治疗效果。     

儿童体位性心动过速综合征的诊断

儿童体位性心动过速综合征（postural tachycardia syndrome， POTS）是儿童时期晕厥最常见的病因之一， 主要表现为体位改变或直立后头晕、 头痛、 心悸、面色改变、视物模糊、 乏力、 晕厥等。通过直立或直立倾斜试验（HUTT）， 可以对儿童体位性心动过速综合征（POTS）作出明确诊断， 从而达到有效的早期治疗， 减少儿童晕厥的发生。     

Trends in skin prick test according to seasons: Results of a Korean multi-center study

ObjectiveAllergy is a very common condition. Allergic disease is highly affected by environmental changes. Conditions of the four seasons can change dramatically in Republic of Korea (ROK). To assess changes in rates of aeroallergen positivity according to seasons and environmental factors (temperature, humidity, and precipitation).MaterialsA total of 20 hospitals were selected based on population distribution in ROK. A skin prick test (SPT) panel comprising 55 aeroallergens was distributed to 18 hospitals for a prospective study. Results from SPTs done in 2006 and 2010 were collected and analyzed retrospectively from 20 hospitals and 2014/2015 SPT (from June 2014 to May 2015) results from 18 hospitals were collected prospectively.ResultsWe compared allergen-positive rates among seasons. Positive test rates for several pollens and house dust mites increased significantly in spring and fall. Pollens positive rate varied significantly according to temperature, precipitation, and humidity while mite allergens were less susceptible to environment.ConclusionThere are four distinct seasons in ROK. The positivity of pollen allergens were especially affected by temperature and precipitation in spring. House dust mites were less affected by seasons, temperature, precipitation, and humidity less than pollen. Therefore, regular follow-up and re-evaluation of allergic test are essential considering changes of seasons and environment for acceptable diagnosis and treatment.     

V-EMF treatment of facial scar: First results

Aim of studyThis is a retrospective study aimed at evaluating the effectiveness of the use of electromagnetic fields and negative pressure treatment (V-EMF) for facial scars, from an aesthetic and functional point of view, and considering the variations in the levels of hydration.Material and methods25 subjects with facial scarring were re-evaluated after being treated with the V-EMF method. The hydration levels of the scars before and after treatment were compared. The results were evaluated considering the satisfaction levels of the patients with the VAS, and of the medical specialists who performed the treatment, and of 3 independent dermatologists with the Likert scale.ResultsMean hydration levels of scars went from 41.8 to 53.3, with mean hydration levels of healthy reference points equal to 54.6. The minimum patient satisfaction level was 2 in the VAS. The minimum level of satisfaction of specialists and dermatologists was equal to IV on the Likert scale for all patients, except for 1 subject in which it was III for the specialist who had treated him. Anti-aging and re-pigmentation effects were also noted as secondary results.ConclusionsFrom an aesthetic and functional point of view, and for the overall anti-aging effect of the treated area, V-EMF applied to facial scars has shown extremely promising results.