Objective To investigate the method and conditions of isolation，proliferation of multipotent mesenchymal stem cells（MSCs）from human umbilical cord blood in vitro, and to induce osteogenic and adipogenic differentiation directly for identification. Methods Human umbilical cord blood was collected in asepsis condition, isolated by density gradient centrifugation,or sedimented red cell with methylcellulose, and then the same centrifugation was done, or obtained by negative immunodepletion of CD34+. These isolated mononuclear cells were used to carry on plastic adherent culture. To obtain single cellderived colonies, these cells were proliferated clonally in medium which consists of L-DMEM orMesencultTM medium and 10% fetal calf serum（FCS） respectively, then their differentiation potentiality to osteoblasts and lipoblasts was tested. Results The mononuclear cells isolated by sedimented and centrifugated way cultured in MesencultTM medium and 10%FCS were most available. These adhesive cells could become obviously short rodshape or shuttle-shape cells after 5-7 days.The colonies form well in 3rdpassage cells. The mononuclear cells obtained by onlycentrifugalized in density gradient were hard to form colony, isolated by immunomagnetic beads were hard to culture. The surface antigens of these colonies cells presented CD29, CD59, CD71 but not CD34,CD45 and HLADR etc. The colony cells differentiating into osteoblasts that produce mineralized matrices, stained by alizarin red, and differentiating into adipocytes that accumulate lipid vacuoles, stained by oil red. Conclusion MSCs can be isolated from human umbilical cord blood and proliferate it in vitro. The way that mononuclear cells are sedimented red cell by methylcellulose and cultured by MesencultTM medium and 10% FCS is the valid method of isolation. Proliferation colonies cells present matrix cell immunophenotypes, and candifferentiate into osteoblasts and adipocytes.
Objective To summarize the experience of the surgical treatment of complex congenital heart diseases in 29 newborns. Methods Twenty-nine newborns were operated on for various congenital heart diseases, ages were from 3 to 28 d. There were ventricular septal defect 3 cases, D-transposition of the great arteries (D-TGA) 10 cases, pulmonary atresia (PA) 1 case,tricuspid atresia 3 cases, single ventricle 1 case, tetralogy of Fallot 6 cases, endocardial cushion defect 4 cases and truncus arteriosus 1 case. All patients were combined with atrial septal defect and patent ductus arteriosus. All operations were performed under hypothermic cardiopulmonary bypass. Results The operative mortality was 13.8%(4/29). One case with D-TGA and 1 case with PA succumbed due to low cardiac output syndrome, and 2 cases due to acute respiratory distress syndrome and low blood oxygen saturation. Twenty-five cases were discharged. Follow-up was completed in 19 patients,with a duration of 1-31 months, all patients have been normal. Conclusion Anesthesia and cardiopulmonary bypass should be performed smoothly and satisfactorily in newborn babies for cardiac surgery. Surgical manipulation should be accurate with less trauma and well protection of myocardium and lung is important.
In 1984, according to the criteria of the classifieation for congenital hand deformity which wasput out by the International Hand Surgery Committee, we had made an investigation for congenitalhand deformity among 318066 newborns in Shanghai. It was found that the inctdence of a congenitalhand malformation was 0. 0808 percent among the total newborns. The congenital malformation ofthe thumb was 37. 74 percent of all deformities of the hand. According to the statistical analysis, we ...
ObjectiveTo sum up experiences of precaution and provide evidence to prevent such accidents in the future via analyzing the nosocomial infection in newborn babies who were infected by rotavirus. MethodsWe investigated and monitored the 8 cases of nosocomial infection occurred between July 7th and July 14th, 2012 by epidemiologic and environmental hygienic methods, and analyzed the existing risk factors and took measures to control. ResultsThere were 8 nosocomial infected cases among the 45 newborn babies who were hospitalized. The infection rate was 17.8% and the accident lasted for 7 days. The distribution of space, time and population was clustered. Environment and hands were the main media to spread the virus. ConclusionThe accident was a suspected nosocomial infection caused by rotavirus in the hospital. It can be controlled effectively through intensive cleaning and sterilizing, isolated touching, and improving the medical staff's compliance and accuracy rate of hand sanitation.
ObjectivesUsing systematic literature review to analyze the effects of levetiracetam (LEV) on neonatal safety during early pregnancy.MethodsThe scope of the literature must be English literature, published from 1997 to 2018. Meta-analysis was performed by random effects models.ResultsSeven literatures were included. A total of 672 cases exposed to LEV in treatment group and 772 234 cases in control groups were selected for meta-analysis. There was no significant difference in neonatal malignancy between treatment group and control group［OR=1.05, 95% CI (0.54, 2.02), P=0.37］. Further, we evaluated the effect of LEV monotherapy and polytherapy on neonatal safety, a total of 464 monotherapy cases and 632 polytherapy cases respectively were selected for meta-analysis. The results showed that there was no significant difference between these two therapies in neonatal malignancy ［OR=0.54, 95% CI(0.31, 0.96), P=0.32］.ConclusionsAs the papers we included, levetiracetam in the treatment of epilepsy during pregnancy is relatively safe for newborn.
目的 评价不同复苏方法和不同药物、氧疗、物理疗法等对新生儿窒息复苏和复苏后的预防措施的有效性和安全性.方法 计算机检索Cochrane Library(2004年第3期),MEDLINE(1966～2002年) 关于新生儿窒息复苏时不同复苏方法、氧气的应用、以及不同药物、剂量、给药途径治疗和预防新生儿窒息的系统评价、随机和半随机对照试验.结果 正压通气时使用100%氧气和应用室内空气的复苏效果并无差异.胎粪污染羊水(MSAF)与较高的新生儿缺血缺氧性脑病(HIE)的发生率有关,而气管内有胎粪者无论稀稠均与胎粪吸入综合征发生率无关.窒息复苏后预防性给予亚低温疗法、抗惊厥药、纳洛酮、多巴胺等在降低新生儿病死率,继发HIE的严重程度等方面与对照组相比无显著差异.应用肺表面活性物质(PS)预防和治疗新生儿呼吸窘迫综合征(RDS),可减少死亡率和并发症.结论 应用PS预防和治疗RDS可明显减少新生儿死亡率,且胎龄lt;32周的早产儿预防用药比治疗用药效果更好;目前尚无充分证据证明窒息复苏后预防性给予亚低温疗法、抗惊厥药、纳洛酮、多巴胺等治疗的有效性.
Objective To investigate the role of low-dose heparin added to total nutrient admixture (TNA) solutions in the prevention of catheter related infections (CRIs). Methods One-hundred three newborn infants with periph-erally inserted central catheter (PICC) were divided into heparin group (n=63) and control group (n=40). The patients in the heparin group received TNA with 0.5 U/ ml heparin. The patients in the control group received TNA without heparin. We retrospectively analyzed the incidence of CRTs in the two groups. Results We found that the incidence of CRIs was 0 in the heparin group and 12.5% (5/40) in the control group. The incidence of catheter obstruction was 6.3% (4/63) in the heparin group and 20% (8/40) in the control group. The incidence of catheter-tip colonization was 1.58% (1/40) in the heparin group and 17.5% (7/40) in the control group. The incidences of CRIs, catheter obstruction, and catheter-tip colonization were signiicantly lower in the heparin group than those in the control group (Plt;0.05). Conclusion TNA solutions with 0.5U/ml heparin have decreased catheter obstruction and CRIs.
In October 2020, the American Heart Association issued the 2020 edition of guidelines for cardiopulmonary resuscitation and cardiovascular first aid, which comprehensively revised cardiopulmonary resuscitation and emergency cardiovascular care guidelines related to adults, children, newborns, resuscitation education science and treatment system. According to the latest edition of International Liaison Committee on Resuscitation’s classes of recommendation and levels of evidence, relevant suggestions are put forward. This article interprets the main updated and revised content, including children’s basic and advanced life support and neonatal resuscitation, in order to better guide emergency personnel and improve the quality of cardiopulmonary resuscitation and cardiovascular first aid.
ObjectiveTo investigate the effects of total parenteral nutrition in neonatal patients and study the nursing methods for these neonates. MethodsWe retrospectively analyzed the clinical data of 70 neonatal patients who accepted total parenteral nutrition in our hospital from October 2010 to October 2011. Physiological indexes were compared before and after total parenteral nutrition. ResultsSignificant improvements in the nutritional status of all children were observed. All patients achieved good efficacy and effective care. ConclusionTotal parenteral nutrition support for critically ill newborns is of great significance, and good caring also plays an important role.
ObjectiveTo study the phenotype of children with KCNQ2 gene related epilepsy.MethodsForty epilepsy children who were detected with KCNQ2 gene variants were enrolled. Their genotype and phenotype were analyzed.ResultsThirty-six KCNQ2 variants were identified. Twenty variants were novel. Twelve patients had inherited variants, and 28 patients had de novo variants. The age of seizure onset was from one day to 9 months. 80.0% patients had their seizure onset in neonates (32/40). Multiple seizure types were observed. Focal seizure was observed in 38 patients (95.0%). Epileptic spasm was observed in 10 patients (25.0%). Myoclonic seizure was observed in 4 patients. Tonic spasm seizure was observed in 3 patients. In all patients, seizures manifested in clusters. In 28 patients with de novo KCNQ2 variants, 24 had development delay (85.7%), the other 4 patients had normal development. In 12 patients with inherited KCNQ2 variants, one had development delay, the other 11 patients had normal development (91.7%). The most common interictal EEG changes were local epilepsy discharges (31/40). The MRI of brain was abnormal in 14 patients with de novo KCNQ2 variants and developmental delay. The agenesis of corpus callosum was identified in 10 patient (25.0%). Enlargement of subarachnoid spaces in the frontal and temporal region was identified in 11 patients (27.5%). Cortial dysplasia in the bilateral frontal and temporal region was identified in 2 patients. Sulus deepening was identified in 4 patients. Enlargement of bilateral lateral ventricle was identified in 3 patients. In 40 patients with KCNQ2 variants, 3 were diagnosed as benign familial neonatal epilepsy (BFNE), 2 were diagnosed as benign familial neonatal-infantile epilepsy (BFNIE), 3 were benign familial infantile epilepsy (BFIE), 3 were benign infantile epilepsy (BIE), 5 were benign neonatal epilepsy (BNE), 3 wer Ohtahara syndrome (OS), 9 were West syndrome (WS), 12 were unclassified early infantile epileptic encephalopathy (EIEE), one was epilepsy with autism. Sodium channel blockers oxcarbazepine was the most effective among antiepileptic drugs, with a effective rate of 90.9%.ConclusionsMost KCNQ2 variants are missense variants. De novo variants are more common in patients with KCNQ2 variants. The clinical features of patients with KCNQ2 variants including that mainly with seizure onset in neonate, the main seizure type is focal seizures, seizures occur in clusters. Patients with de novo KCNQ2 variants often had developmental delay, and about half of them had frontal and temporal lobe dysplasia and agenesis of corpus callosum. Sodium channel blockers are effective agents for epilepsy patients with KCNQ2 variants.