目的 分析血流感染（BSI）患者血小板参数的动态变化及其在患者预后中的价值。方法 回顾性分析南通市中西医结合医院检验科明确BSI的66例患者,分为生存组（55例）和死亡组（11例）。比较不同组间病原菌分布及1周内血小板参数动态变化情况,并通过Logistic回归分析评估血小板参数动态变化的在治疗预后评估中的价值。结果 （1）BSI患者病原菌分为革兰氏阳性菌（G+）25株、革兰氏阴性菌（G-）39株、真菌2株;G+病原菌中前三位为金黄色葡萄球菌（10.61%）、表皮葡萄球菌（7.58%）、头状葡萄球菌（4.55%）;G-病原菌中前三位为大肠埃希菌（24.24%）、肺炎克雷伯菌肺炎亚种（15.15%）、肠炎沙门菌血清型（3.03%）;真菌为新生隐球酵母（1.52%）、光滑假丝酵母（1.52%）。（2）生存组序贯性器官功能衰竭评分（SOFA）评分为（3.24±0.53）分,低于死亡组的（6.02±1.17）分（t=12.535,P<0.001）;生存组BSI病程为（20.50±2.17）d,低于死亡组的（25.71±4.81）d（t=3.352,P<0.001）;生存组肺部原发感染灶30.91%,高于死亡组的63.64%（χ²=4.243,P=0.039）;生存组最大平均血小板体积（MPV）为（10.96±1.58）fL,低于死亡组的（11.99±1.42）fL（t=2.004,P=0.049）;生存组入院血小板计数（PLT）为（144.33±23.18）10⁹/L,低于死亡组的（166.91±20.29）10⁹/L（t=3.005,P=0.004）;生存组最低PLT为（113.48±30.76）10⁹/L,高于死亡组的（80.16±38.24）10⁹/L（t=3.148,P=0.002）。（3）两组入院及BSI时、BSI后4 d内的指标比较差异均无统计学意义（P>0.05）,在BSI后的5~7 d,生存组PLT为（210.83±102.37）10⁹/L,高于死亡组的（112.75±116.84）10⁹/L（t=2.835,P=0.006）;生存组MPV为（10.12±1.58）fL,低于死亡组的（11.27±1.85）fL（t=2.142,P=0.036）;生存组MPV/PLT 比值（MPR）为（5.69±2.89）,低于死亡组的（11.64±8.23）（t=4.290,P<0.001）。（4）多因素Logistic回归分析发现,入院SOFA（OR=5.461,95%CI：1.544~19.319,P=0.008）、BSI病程（OR=0.773,95%CI：0.622~0.960,P=0.020）、5~7 d MPR（OR=18.976,95%CI：1.776~202.709,P=0.015）是BSI的预测因素。结论 BSI患者血小板参数动态变化较为明显,而入院SOFA、BSI病程、5~7 d MPR对于预测患者死亡风险有重要意义。

目的 探究血清神经元特异性烯醇化酶（NSE）、振幅整合脑电图（aEEG）动态变化对早期预测窒息新生儿脑损伤的临床意义。方法 选择2022年3月–2023年3月在我院新生儿重症监护室接受治疗的窒息新生儿作为研究对象。按窒息程度分组：轻度窒息30例为A组,重度窒息30例为B组,无窒息的30例足月儿为C组。记录A、B、C组患儿出生后的血清NSE及aEEG,包括出生后24 h、3 d、7 d的血清NSE,出生后6 h、3 d、7 d的aEEG,了解血清NSE及aEEG变化。结果 B组在出生后24 h、3 d、7 d的血清NSE高于A组、C组,组间比较差异有统计学意义（P<0.05）。出生后6 h、3 d、7 d,aEEG背景活动、睡眠觉醒周期、痫性活动和窒息程度紧密相关。结论 血清NSE、aEEG可作为窒息新生儿脑损伤的监测,对于早期预测脑损伤极具临床应用价值。

目的 观察低出生体重早产儿应用抗生素后肠道菌群的动态变化。方法 选取2018年6月—2019年7月在广州市第一人民医院住院的10名低出生体重早产儿,在出生时、出生后1~2周、出生后2~3周、出生后3~4周、出生后4~5周、出生后5~6周时分别收集粪便样本,通过16s高通量测序检测患儿粪便菌群变化并统计分析。结果 应用抗生素后的低出生体重早产儿肠道菌群α多样性(Shannon指数、Simpson指数、ACE指数和PD_whole_tree指数)下降(P均<0.05),肠道菌群结构在门、科、属水平均发生改变,其中Alistipes、Bacteroides、Lactobacillus、unidentified_Lachnospiraceae、unidentified_Ruminococcaceae、Alloprevotella、unidentified_Cyanobacteria、Bacillus、Stenotrophomonas和Acinetobacter菌属相对丰度减少(P均<0.05)。结论 低出生体重早产儿应用抗生素后肠道菌群多样性下降,肠道菌群结构发生改变,并在抗生素停用后仍持续,针对性补充益生菌或益生元可能有助于肠道菌群恢复稳态。

Objective To observe the dynamic changes of gut microbiota in premature infants with low birth weight after antibiotics therapy. Methods 10 low birth weight premature infants hospitalized in Guangzhou First People's Hospital from June 2018 to July 2019 were included. Fecal samples were collected at birth, 1~2 weeks after birth, 2~3 weeks after birth, 3~4 weeks after birth, 4~5 weeks after birth and 5~6 weeks after birth, respectively. The changes of fecal microbiota were detected and analyzed by 16s high-throughput sequencing. Results The α-diversity of gut microbiota (Shannon index, Simpson index, ACE index and PD_whole_tree index) in low birth weight preterm infants treated with antibiotics decreased (P<0.05). The structure of gut microbiota changed at phylum, family and genus levels, among which Alistipes, Bacteroides, Lactobacillus, unidentified_Lachnospiraceae, unidentified_Ruminococcaceae, Alloprevotella, unidentified_Cyanobacteria, Bacillus, Stenotrophomonas and Acinetobacter decreased (P<0.05). Conclusion The diversity of gut microbiota in low birth weight preterm infants decreased and the structure of gut microbiota changed after antibiotic therapy. Targeted supplementation of probiotics or prebiotics may contribute to the recovery of gut microbial homeostasis.

目的 分析乳腺恶性肿瘤患者的诊断和治疗方法的动态变化,了解该疾病的患者诊治相关行为方式的变化。方法 抽取我院1999年—2014年收治的所有乳腺恶性肿瘤患者,比较不同初诊时间和初诊年龄分组间,患病部位、肿瘤大小、手术方式、治疗方式的差异。结果 比较1999年—2004年组、2005—2009年组,近年诊断的肿瘤最大直径有所下降,经过卡方比较,构成比有差异(χ²=14.2,P=0.007)。近年诊断的患者更愿意选择积极的改良根治术作为手术治疗方式(χ²=38.8,P<0.001)。就不同年龄而言,年轻的患者选择改良根治术和化疗的比例也较年老的患者高,而年龄大的患者则选择姑息治疗的比例较高(χ²=154.9,P<0.001)和(χ²=129.8,P<0.001)。结论 乳腺恶性肿瘤的认知的加强,诊治技术的提高,乳腺恶性肿瘤能够更早的被发现诊断,治疗方式的选择也更加积极。

Objective To analyze the dynamic changes of breast cancer diagnosis and treatment. and to understand the changes of related behaviors of the patients. Methods From 1999 to 2014, breast cancer patients were chosen, the differences of tumor size, operation and treatment were not compared. Results The results were compared within different groups of diagnosis years, such as 1999-2004,2005-2009, and 2010-2015. The maximum diameter of the tumor diagnosed in recent years was decreased, χ²=14.2,P= 0.007. At the same time, patients that were diagnosed in recent years were more likely to choose radical surgery as surgical treatment, χ²=38.8,P<0.001. Comparing within groups of different ages, more patients chose radical surgery and chemotherapy in younger patients than older ones, we found that the older patients chose a higher proportion of palliative care, χ²=154.9,P<0.001 and χ²=129.8,P<0.001. Conclusion Understan-ding of breast cancer malignancies was enhanced. Breast cancer may be diagnosed earlier and the choice of treatment is more positive with the development of technology.

目的 统计医院眼科门诊病人前15位疾病的构成变化及不同年龄段间差异。方法 对2008年—2011年眼科门诊病人诊断及治疗信息作横断面研究,分析逐年门诊量变化及疾病谱的变化。结果 4年来门诊共接诊患者22356人次,初诊病人20915例。4年初诊患者分别为1476、3795、7177、8467人次。其中男12088例(59.9%),女8087例(40.1%),平均年龄 33.75岁。未成年人占20.23%,中青年占72.33%,老人占7.44%。前15位的疾病构成4年间有一定的波动,但结膜炎、角膜异物及屈光不正所占比例较高。三个年龄组构成最高的疾病分别为屈光不正、结膜炎、白内障。结论 该院眼科门诊4年来就诊人数增加5倍有余。患者中青年、未成年患者比例高、老年患者比例低,男性比例高于女性。角膜异物等外伤性疾病较多,不同年龄段疾病谱各有特点。

Objective Describe the distribution of diagnoses at the ophthalmic clinic of a tertiary hospital in the first four years since its inception. And also analyse the patterns of diagnoses of different age. Methods Cross-sectional study was administered on all new patients seen by ophthalmologists at Nansha Central Hospital from 2008 to 2011. Results 59.90% (12088 cases) were male and 40.10% (8087 cases) were female. Juveniles, adults and the elders accounts for 20.33%, 72.33%, and 7.44% of all visitors respectively. The most common conditions were conjunctivitis (27.00%), refractive error (9.87%) and corneal foreign bodies (9.07%). There were more diagnoses of refractive error (32.26%, P<0.01) among the juveniles, while the elders had higher percentage of cataract diagnoses (27.81%, P<0.01). Conclusion The number of new patients visiting the ophthalmic clinic had increased six-fold over the four years. The proportion of younger patients was much higher than that of older ones and the male to female ratio was high.compared to the results of literature, the marked characteristic of the disease distribution was the high rate of ocular traumatic diseases. The most common diagnoses varied with age.

目的 比较肺炎支原体肺炎(MPP)、非MPP患儿和健康儿童的免疫球蛋白、补体水平,以探讨儿童MPP体液免疫指标的变化规律。方法 分别检测52例MPP、55例非MPP患儿和33例健康儿童的血清免疫球蛋白(IgG、IgA、IgM)、补体(C3、C4),并比较儿童MPP急性期和恢复早期体液免疫指标。结果 MPP组急性期血清IgM、C3、C4水平高于非MPP组急性期和健康儿童(P<0.05)。儿童MPP恢复早期IgM水平高于急性期,C4水平低于急性期(P<0.05)。结论 与非MPP和健康儿童比较,MPP患儿存在明显体液免疫功能紊乱,从急性期到恢复早期,血清IgM逐渐升高,补体C4先升高后降低,自身免疫反应可能参与了儿童MPP的发病过程。

Objective To investigate the changes of serum immunoglobulins and complement in children with mycoplasma pneumoniae pneumonia (MPP). Methods 52 children with MPP, 55 children with non-MPP and 33 healthy children were enrolled. The levels of serum immunoglobulins (IgG, IgA and IgM) and complements (C3, C4) were detected. Results Compared with the non-MPP group and healthy control, the levels of IgM, C3 and C4 in MPP group during their acute phase were significantly higher (P<0.05). And among the MPP group the levels of IgM were hisher and C4 were lower than that in the acute phase. Conclusion Immune function disturbance exists in children with MPP. From acute to recovery stage, the level of IgM increased while C4 increased firstly and then decreased. Immune injury may be involved in the pathophysiology of childhood MPP.