目的 探讨在COVID-19流行期间血库资源紧张状态下输血时机对儿童输血效果及临床预后的影响。方法 本回顾性队列研究纳入2020年1月—2020年12月在广州市妇女儿童医疗中心儿科急诊就诊并申请输血的患儿的临床预后。结果 共566例发起红细胞和血小板的非手术输血申请的患儿纳入研究,包括 260 例的红细胞申请和306例血小板申请。260份红细胞申请中:209 例及时输血,40 例延时输血,11 例未输血;及时组和延时组的输血有效率分别为37.8%和35.0%(P=0.737);1名不良预后的死亡病例出现在及时组中,余病例临床预后均良好,3组的临床结局无统计学差异(组间P=0.886)。306份血小板申请中:195 例及时输血,108 例延时输血,3例未输血;1名不良预后的死亡病例出现在及时组中(0.51%),3名不良预后的死亡病例出现在延时组中(2.78%),余病例临床预后均良好,3组的临床结局无统计学差异(组间P=0.131)。结论 符合红细胞与血小板输血指征的非急诊手术用血的急诊患儿中,及时组、延时组和未输血组之间的临床结局没有差异。输血时机进一步需要大样本的循证研究加以确定。

Objective To investigate the influence of blood transfusion timing on blood transfusion efficacy and clinical prognosis in children under the strain of blood bank resources during COVID-19 pandemic. Methods This retrospective cohort study included clinical outcomes of pediatric emergency patients who applied for blood transfusion in Guangzhou Women and Children's Hospital from January 2020 to December 2020. Results A total of 566 children applicated blood transfusion for red blood cells and platelets for non-emergency surgical use were enrolled, including 260 red blood cells cases and 306 platelets cases. Among the 260 applications for red blood cells, 209 cases received timely transfusion, 40 cases received delayed transfusion, and 11 cases did not receive transfusion.The effective rate of transfusion for red blood cells was 37.8% in the timely group and 35.0% in the delayed group (P=0.737). One death case with poor prognosis was found in the timely transfusion group, and the clinical prognosis of the rest cases was good. There was no statistical difference in the clinical outcomes among the three groups (P=0.886). Among 306 applications for platelet, 195 cases had timely transfusion, 108 cases had delayed transfusion, and 13 cases did not had transfusion.One case with poor prognosis died in the timely transfusion group (0.51%), and three with poor prognosis died in the delayed transfusion group (2.78%). The rest of the cases had good clinical prognosis, and there was no statistical difference in clinical outcomes among the three groups (P=0.131). Conclusions There were no significant differences in clinical outcomes among the timely transfusion group, the delayed transfusion group, and the non-transfusion group for red blood cell and platelet transfusion respectively. The timing of transfusion may need to be determined by evidence-based studies with large samples.

目的 了解疫情期间医护人员代谢综合征(MS)、高同型半胱氨酸血症(HHcy)的患病率、二者关系及靶器官损害。方法 选取2020年1月—2021年11月在天津市某三级综合医院的1 544名医护人员作为研究对象。测量人体指标,测定血液生化、免疫等指标。分析MS及其组分的患病率、HHcy的患病率及靶器官损害。采用χ²检验,比较MS组、HHcy组与对照组靶器官损害的差异。采用Logistic回归模型分析MS与HHcy的关系。结果 三级综合医院医护人员疫情期间MS患病率为23.7%,MS组分:中心性肥胖、高血压/高血压病、高甘油三酯、低高密度脂蛋白和高空腹葡萄糖/糖尿病的患病率分别为49.4%、19.3%、24.3%、0.5%和37%。HHcy的患病率为29.7%。MS组、HHcy组与对照组靶器官损害程度差异有统计学意义(P<0.001)。HHcy与MS无直接相关性。结论 疫情期间医护人员MS和HHcy患病率较高,与对照组相比有明显的靶器官损害,HHcy不是MS的独立危险因素。

Objective To explore the prevalence of metabolic syndrome (MS) and hyperhomocysteinemia (HHcy), their relationship and target organ damage among medical staff during the pandemic. Methods A total of 1 544 medical staff in a third-class general hospital in Tianjin from January 2020 to November 2021 were selected as the object of study. The indexes of human body were measured, and the indexes of blood biochemistry and immunity were detected. The prevalence of MS and its components, the prevalence of HHcy and target organ damage were analyzed. χ² test was used to analyze the difference of target organ damage among MS group, HHcy group and control group. The relationship between HHcy and MS was analyzed by Logistic regression model. Results The prevalence of MS among medical staff in the third-class general hospital during the pandemic was 23.7%. The prevalence of central obesity, hypertension / hypertension disease, high triglyceride, low high density lipoprotein cholesterol and high fasting plasma glucose/diabetes were 49.4%, 19.3%, 24.3%, 0.5% and 37%, respectively. The prevalence of HHcy was 29.7%. There was significant difference in target organ damage among MS group, HHcy group and control group (P<0.001). There was no direct correlation between HHcy and MS. Conclusions During the pandemic period, the prevalence of MS and HHcy in medical staff were high, and there was obvious target organ damage in those staff compared with the control staff. HHcy is not an independent risk factor of MS.

目的 探讨复方丹参滴丸联合阿托伐他汀治疗对伴有颈动脉粥样硬化短暂性脑缺血发作患者脑循环动力的影响。方法 将2017年12月—2018年12我院收治入院的98例伴有颈动脉粥样硬化短暂性脑缺血发作患者为研究对象,随机分为观察组(49例,给予复方丹参滴丸联合阿托伐他汀治疗)和对照组(49例,给予阿托伐他汀治疗)。观察对比治疗前及治疗后2组患者每日短暂性脑缺血发作频率及持续时间,血脂水平、血流变指标、粥样硬化斑块及斑块面积。结果 治疗前,两组患者每日短暂性脑缺血发作频率、持续时间、各项血脂水平、脑循环动力学指标IMT 及斑块面积相比,差异无统计学意义(P>0.05);治疗后,2组患者每日短暂性脑缺血发作频率、持续时间、各项血脂水平、脑循环动力学指标IMT 及斑块面积相比均有所改善,其中观察组患者每日短暂性脑缺血发作频率、持续时间、各项血脂水平、脑循环动力学指标IMT 及斑块面积相比优于对照组,差异有统计学意义(P<0.05)。结论 在伴有颈动脉粥样硬化短暂性脑缺血发作患者中采用复方丹参滴丸联合阿托伐他汀治疗效果确切,可有效降低伴有颈动脉粥样硬化的短暂性脑缺血发作患者发作频率及持续时间,同时可有效调节患者血脂水平,改善对脑循环动力学指标,值得临床推广普及。

Objective To investigate the effect of compound Danshen dripping pills combined with atorvastatin on cerebral circulation dynamics in patients with transient ischemic attack accompanied by carotid atherosclerosis. Methods A total of 98 patients with transient ischemic attack with carotid atherosclerosis admitted to our hospital from December 2017 to December 2018 were randomly divided into observation group (49 cases, receiving compound danshen drop pill combined with atorvastatin) and control group (49 cases, receiving atorvastatin), to observe and compare the frequency and duration of transient ischemic attack, blood lipid level, hemorheological indexes, atherosclerotic plaque and plaque area of the two groups before and after treatment. Results Before treatment, there was no significant difference in frequency, duration, blood lipid levels, IMT and plaque area between the two groups (P>0.05). After treatment, 2 groups of patients with transient ischemic attack daily frequency, duration, the lipid levels and cerebral circulation dynamics index IMT and plaque area were improved. Compared with observation group of patients with transient ischemic attack daily frequency, duration, the lipid levels and cerebral circulation dynamics index IMT and plaque area were better than control group, the differences were statistical significance (P<0.05). Conclusion Patients in associated with carotid atherosclerosis with transient ischemic attack using compound danshen dropping pill with atorvastatin therapy have good effects. This may effectively reduce frequency and duration in patients with transient ischemic attack associated with carotid atherosclerosis, regulate blood lipid levels at the same time, and improve the dynamics of cerebral circulation index. It is worthy of clinical popularization.

目的 通过研究微泡超声空化增强微波消融对兔VX2肿瘤的热消融效应来探究其在肿瘤治疗中的价值。方法 24只肝脏移植瘤兔随机分为空白对照组、单纯超声空化治疗组、单纯微波消融治疗组、超声空化联合微波消融治疗组4组。利用增强超声显示每组治疗前后肿瘤的大小、形状和轮廓并通过温度针来检测治疗区域的局部温度。结果 联合治疗组血流灌注缺损最严重,微波消融组和联合治疗组缺损体积分别为1.53±0.20和1.68±0.43(P=0.117);微波消融组以及联合治疗组消融治疗时温度达平台时间分别为(21.7±5.0)s和(10.3±5.0)s(P<0.01),最高温度(℃)分别为100.9±5.0和134.1±6.0(P<0.01)。结论 MWA联合MEUS治疗肝癌可使治疗区局部温度急剧升高至峰值温度,有望提高肝癌治疗效果。

Objective To investigate the thermal ablation effect of microbubble ultrasound cavitation combined with microwave ablation on rabbit VX2 tumors. Methods Twenty-four rabbits with liver transplantation tumors were randomly divided into four groups: blank control group, ultrasound-only cavitation treatment group, microwave-only ablation treatment group, and ultrasound-cavitation combined with microwave ablation treatment group. Enhanced ultrasound was used to show the size, shape and contour of the tumor before and after treatment in each group, and the local temperature of the treatment area was detected by a temperature needle. Results The blood flow perfusion defect was the most severe in the combined treatment group. The defect volume of the microwave ablation group and the combined treatment group were 1.53±0.20 and 1.68±0.43 (P=0.117). The temperature reached the plateau time in the microwave ablation group and the combined treatment group. It was (21.7±5.0)s and (10.3±5.0)s (P<0.01), and the highest temperature (℃) was 100.9±5.0 and 134.1±6.0 (P<0.01). Conclusion MWA combined with MEUS for liver cancer can sharply increase the local temperature in the treatment area to the peak temperature, which is expected to improve the treatment effect of liver cancer.

目的 探讨双靶点微创联合尼莫地平治疗丘脑出血破入脑室患者的安全性及对NIHSS评分的影响。方法 选择2017年1月—2020年1月期间本院收治的54例丘脑出血破入脑室患者作为研究资料,随机分组各27例,对照组行单纯侧脑室体外引流术治疗,观察组行立体定向下侧脑室联合丘脑血肿双靶点微创穿刺引流术治疗,均实施尼莫地平治疗,观察两组手术并发症,测定治疗不同阶段患者NIHSS评分、ADL评分、神经损伤指标、创伤应激指标变化。结果 并发症率比较,观察组7.41%低于对照组29.63%,P＜0.05;治疗后,观察组NSE、NGF、β-EP、Cor均降低,且低于对照组,P＜0.05;治疗后,观察组NIHSSL评分降低且低于对照组,ADL评分升高且高于对照组,P＜0.05。结论 针对丘脑出血破入脑室患者采取立体定向下侧脑室联合丘脑血肿双靶点微创穿刺引流术及尼莫地平治疗可进一步改善神经功能及生活质量,且手术安全性高,创伤应激恢复改善,神经损伤恢复快,并发症少,值得推广。

Objective To investigate the safety of double target minimally invasive surgery combined with nimodipine in the treatment of patients with thalamic hemorrhage breaking into ventricle and its influence on NIHSS score. Methods From January 2017 to January 2020, 54 patients with thalamic hemorrhage ruptured into ventricles in our hospital were selected as the research data, and they were randomly divided into 27 cases in each group. The control group was treated with external drainage of lateral ventricle alone, and the observation group was treated with stereotactic double target minimally invasive puncture and drainage of hypothalamic hematoma. The changes of NIHSS score, ADL score, nerve injury index and trauma stress index in different stages of treatment were determined. Results The complication rate of the observation group was 7.41%, lower than that of the control group 29.63%, P<0.05; after treatment, NSE, NGF, β-EP, Cor in the observation group were decreased, and lower than those in the control group, P<0.05; after treatment, NIHSSL score of the observation group was decreased, lower than that of the control group, ADL score was increased and higher than that of the control group, P<0.05. Conclusion For patients with thalamic hemorrhage breaking into ventricles, stereotactic double target minimally invasive puncture drainage combined with thalamic hematoma and nimodipine treatment may further improve the neurological function and patients’ quality of life, and the operation safety is high, the recovery of traumatic stress is improved, the recovery of nerve injury is quick, and the complications are less, which is worthy of promotion.

目的 探讨低机械指数诊断超声及低声压治疗超声对造影剂微泡的作用效果。方法 低机械指数的诊断超声及不同声压下低能量治疗超声体外辐照造影剂微泡,通过获得的超声造影图像间接分析微泡总浓度的变化,探讨不同机械指数诊断超声及不同声压治疗超声下微泡发生稳定空化及惯性空化情况。结果 低机械指数(<0.2)诊断超声及低声压(<0.15 MPa)治疗超声下微泡以稳定空化为主,随着机械指数增高或声压增高,微泡以稳定空化和惯性空化两种方式并存,当机械指数>0.3或声压>0.2 Mpa时,微泡以惯性空化为主。结论 微泡在低机械指数及低声压作用下发生不同空化效应,随着机械指数或声压增加,微泡破坏增加,以惯性空化效应为主。

Objective To investigate the effect of low mechanical index diagnostic ultrasound and low acoustic pressure therapy on contrast agent microbubbles. Methods Microbubbles were irradiated by diagnostic ultrasound with low mechanical index(MI) and low energy therapy under different acoustic pressure. To obtain the images, and analyze the change of microbubble concentration,the movement trend of microbubbles under different MI and different acoustic pressure were analyzed, to estimated stable cavitation or inertial cavitation of microbubbles. Results Stable cavitation was the main form of microbubbles under low mechanical index (< 0.2) diagnostic ultrasound and low acoustic pressure (< 0.15Mpa). With the increase of mechanical index or acoustic pressure, stable cavitation and inertial cavitation coexisted. When mechanical index > 0.3 or sound pressure > 0.2MPa, microbubbles were mainly inertial cavitation. Conclusion The cavitation effects of microbubbles under low mechanical index and low acoustic pressure are different. With the increase of mechanical index or acoustic pressure, the damage of microbubbles increases, and main effect is the inertial cavitation.

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 探讨老年急性缺血性脑卒中并发肺部感染患者的临床特征和相关危险因素。方法 采用回顾性研究方法,选择2017年7月— 2019年10月深圳市第二人民医院神经内科收治的1 113例老年急性缺血性脑卒中患者,其中卒中并发肺部感染患者(108 例)纳入感染组,未并发肺部感染患者(1 005例)纳入对照组。以单因素对比分析两组患者的临床资料,采用 Logistic多因素回归分析方法分析合并肺部感染的高危因素。结果 单因素分析提示两组年龄(尤其是高龄患者)、住院天数、房颤、脑梗死史、慢性肺疾病、吞咽困难、言语不清、意识障碍差异有统计学意义(P <0.05)。多因素 Logistics 回归分析显示,高龄(≥80岁)、住院天数、脑梗死史、吞咽困难、言语不清、意识障碍与老年急性缺血性脑卒中并发肺部感染密切相关。结论 老年急性缺血性脑卒中并发肺部感染的独立危险因素主要是高龄(≥80 岁)、住院天数、脑梗死史、吞咽困难、言语不清、意识障碍,临床应高度重视。

Objective Objective To investigate the clinical characteristics and risk factors of elderly patients with acute ischemic stroke complicated with pulmonary infection. Methods A retrospective study was conducted on 1 113 elderly patients with acute ischemic stroke admitted to the department of neurology, Shenzhen Second People's Hospital from July 2017 to October 2019. Among them, 108 patients with stroke complicated with pulmonary infection were included in the infection group and 1 005 patients without concurrent pulmonary infection were included in the control group. The clinical data of the two groups were analyzed by single factor comparison, and the risk factors for pulmonary infection were analyzed by logistic multiple factor regression analysis. Results Single factor analysis showed there were statistically significant differences between the two groups in age (especially elderly patients), length of stay in hospital, atrial fibrillation, history of cerebral infarction, chronic pulmonary disease, dysphagia, slurred speech, and disturbance of consciousness (P <0.05). Multi-factor logistic regression analysis showed that old age (≥80 years old), length of stay in hospital, history of cerebral infarction, dysphagia, slurred speech, and disturbance of consciousness were closely related to pulmonary infection in elderly patients with acute ischemic stroke. Conclusion The independent risk factors of acute ischemic stroke complicated with pulmonary infection in the elderly mainly include old age (≥80 years old), length of stay in hospital, history of cerebral infarction, dysphagia, slurred speech and disturbance of consciousness, which should be paid more attention to clinically.

目的 探讨无症状感染者在新冠肺炎家庭聚集性疫情中的传播风险,分析家庭聚集性疫情中所有患者的住院治疗情况,为防控策略和治疗方案制定提供依据。方法 通过现场流行病学调查获得旅居史和暴露危险因素,并收集临床治疗资料,利用统计软件进行作图和分析。结果 指示病例的潜伏期为15天,其余4名家庭成员的潜伏期为1～15天,其中指示病例作为无症状感染者,在感染后第4～6天内具有传染性相继导致4名成员感染;指示病例携带病毒8天以上,其余4人从2天到31天不等; 症状持续时间5~20天,住院期间共进行CT检查次数为4～10次,肺部炎症最快在住院第三天好转。发病初期只有1个病例出现白细胞、淋巴细胞降低。发病到就诊和住院的时间间隔为1～10天,平均住院时间为23.4天。结论 无症状感染者在家庭聚集性疫情传播中具有关键作用,难以及时发现,存在较大传播风险,为新冠肺炎疫情防控带来较大难度。

Objective To study the transmission risk of asymptomatic patient in a family-clustered outbreak of new coronavirus pneumonia, analyze the hospitalization,and provide a basis for prevention strategies and treatment plan. Methods We collected the information about residence history and exposure risks by onsite epidemiological investigation, and collected clinical treatment-related data, used statistical software for mapping and analysis. Results The incubation period of the indicated case was 15 days, and the incubation period of the remaining four family members were 1-15 days. The indicated case as an asymptomatic patient had infectious succession within 4-6 days after infection,and four family members were infected one after another. The indicated case carried the virus for more than 8 days, and the remaining 4 patients ranged from 2 to 31 days. The duration of symptoms was 5-20 days of all 5 patients, and the number of CT examinations during hospitalization was 4-10 times. The pulmonary inflammation was improved on the third day of hospitalization at best. In the early stage of the disease, only one patient had leukopenia and lymphopenia decreased. The interval between onset and hospitalization was 1-10 days for five family members, with an average hospitalization time of 23.4 days. Conclusion The asymptomatic infected patient of COVID-19 plays a key role in the family convergence epidemic transmission. The symptoms are inapparent, so it is difficult to find in time. It will cause the risk of infection and increase the difficulty of COVID-19 prevention and control.

目的 分析慢性肾衰竭患者接受肾衰康方治疗对其血清微炎症状态的影响及肾功能的保护作用。方法 将2020年1月—2020年12月作为研究时间段,选取期间广东祈福医院接诊的50例慢性肾衰竭患者,另将随机数字表法作为分组依据,将全部病例分为对照组(行常规治疗,纳入25例)、观察组(加用肾衰康方治疗,纳入25例),对组间中医症状评分、血清微炎症状态、肾功能指标、氧化应激指标展开分析。结果 组间中医症状评分、血清微炎症状态、肾功能指标、氧化应激指标在治疗前无明显差异,P>0.05;观察组中医症状评分、血清微炎症状态、肾功能指标、氧化应激指标在治疗后优于对照组,P<0.05。结论 肾衰康方对改善慢性肾衰竭患者血清微炎症状态、氧化应激水平、临床症状均有较好效果,且能保护肾功能,值得推广。

Objective To analyze the effect of Shenshuaikang decoction on serum microinflammation and renal function in patients with chronic renal failure. Methods From January 2020 to December 2020, 50 patients with chronic renal failure treated by Clifford Hospital were selected, and the random number table method was used for grouping. All cases were divided into control group (n=25) and observation group (n=25). The TCM symptom score, serum microinflammatory state, renal function index and oxidative stress index were analyzed. Results There were no significant differences in TCM symptom score, serum microinflammatory state, renal function index and oxidative stress index between the two groups before treatment, P>0.05; the TCM symptom score, serum microinflammatory state, renal function index and oxidative stress index of the observation group were better than those of the control group after treatment, P<0.05. Conclusion Shenshuaikang decoction has good effect on improving serum microinflammation, oxidative stress level and clinical symptoms of patients with chronic renal failure, and also can protect renal function, which is worthy of promotion.