早产小于胎龄儿与适于胎龄儿临床对照研究

早产小于胎龄儿(small for gestational ageinfant,SGA)是造成围产死亡的主要原因之一,是当前围产医学关注的重要问题,但目前国内报道其发病因素及并发某些疾病的文章不多。本研究旨在对照分析早产SGA的围产期因素和新生儿期发病情况。对象与方法一、对象2001-2002年在我院住院、胎龄为28-36周的SGA99例,其中男49例、女50例;随机抽样同期早产适于胎龄儿(appropriate for ges-tational age,AGA)213例作对照组,其中男116例,女97例。二、方法SGA诊断标准依据中国15城市不同胎龄新生儿出生体重的百分位值[1]。对照分析早产儿SGA的围产期…     

小于胎龄儿相关因素的研究

为了解不同类型胎儿体格发育(出生体重、身长、头围)情况及小于胎龄儿相关因素,自1999年5月～2000年12月,对在我院分娩的单胎活产新生儿及其母亲424对,进行前瞻性调查.结果显示小于胎龄儿(SGA)36例,发生率为8.5%,适于胎龄儿(AGA)294例,大于胎龄儿(LGA)94例,SGA组除出生体重外,身长、头围三项指标均低,与AGA组有非常显著意义(P值均＜0.001).影响SGA体格发育Logis-tic回归分析最主要危险因素为母孕早期剧吐、被动吸烟、贫血、羊水量过少和母患妊高征.母亲身高、文化程度、胎盘重量与胎儿体格发育呈正相关.SGA组新生儿生后五天内发病率最高为33.3%,与AGA组的2.7%比较有非常显著意义(P＜0.01).因此,防治常见妊娠合并症,加强孕期营养,提高自我保护意识,将有助于降低SGA发生.     

小于胎龄儿与适于胎龄儿化脓性脑膜炎临床特点的比较

目的 探讨小于胎龄儿(SGA)和适于胎龄儿(AGA) 化脓性脑膜炎(PM)临床特征的差异。方法 选取58 例足月新生儿PM 患儿作为研究对象进行回顾性研究。根据出生体重与胎龄,将PM 患儿分为SGA 组(13 例)和AGA 组(45 例)。比较两组临床表现、实验室检查结果及预后的差异。结果 SGA 组的肌张力降低发生率高于AGA 组(PPP结论 SGA 发生PM 后,脑损伤发生率更高,提示其预后较AGA 更差。     

早产小于胎龄儿生长代谢的临床研究

目的 探讨早产小于胎龄儿（SGA）与适于胎龄儿（AGA）在住院期间生长代谢的差异,为临床对早产SGA进行营养干预提供依据。方法 1 370例早产儿纳入研究,根据胎龄与出生体重的关系分为SGA组（675例）与AGA组（695例）,比较两组早产儿住院期间的一般情况、体格增长及血生化指标等情况。结果 SGA组住院天数长于AGA组（P < 0.05）。与AGA组相比,SGA组出院体重、出院体重Z评分及出院身长均较低,宫外生长迟缓发生率较高（P < 0.05）,头围增长速率大于AGA组。与AGA组相比,SGA组达全肠内喂养时间及需肠外营养时间均较长（P < 0.05）。SGA组入院时白蛋白、前白蛋白、血清磷、出院前总胆汁酸高于AGA组,白蛋白低于AGA组（P < 0.05）。SGA组窒息、新生儿呼吸窘迫综合征、心肌损伤、喂养不耐受、肺炎、败血症、低血糖、低甲状腺素血症的发生率高于AGA组（P < 0.05）。结论 早产SGA住院期间体格发育明显落后于AGA,宫外生长迟缓发生率较高,更易出现并发症。     

产科因素与小于胎龄儿的关系

在西安市三所医院进行了小于胎龄儿(SGA)的病例对照研究(1:1,155对)。与SGA出生有关的产科因素为:妊高征、脐绕颈、羊水过少、胎盘形态异常、孕期用药、孕期其它疾病、妊娠间隔半年及SGA分娩史。经多元条件logistic分析表明:妊高征(中、重度)、羊水过少、脐绕颈及既往SGA分娩史4项因素被选入。SGA婴儿先天性畸形、新生儿窒息、围产期患病及围产儿死亡均高于适于胎龄儿(AGA)组,分别为AGA的9.49、4.78、5.28和8.28倍。提出了SGA的产科预防措施。     

我国小于胎龄儿现状分析

研究我国小于胎龄儿（SGA）的现状。方法　调研我国22个省、自治区、直辖市的86所医院提供的2005 - 01 - 01 T 00:00:00至2005 - 12 - 31 T 00:00:00出院的产科出生的新生儿（45 014例）中SGA的发生率,总结分析该86所医院新生儿科住院患儿（54 466例）中SGA的临床资料。结果　（1）产科出生的 新生儿中SGA 的发生率为6.61 %,其中早产儿中SGA发生率（13.10 %）高于足月儿（6.05 %）;（2）新生儿科住院患儿中SGA的比例为9.19 %;（3）SGA中窒息 、呼吸窘迫综合征（RDS） 、肺出血、呼吸暂停、缺氧缺血性脑病（HIE）、胃潴留、消化道出血、坏死性小肠结肠炎（NEC）、寒冷损伤综合征、先天畸形的构 成比高于适于胎龄儿（AGA）和大于胎龄儿（LGA）;（4）在SGA的转归中,治愈、好转率分别为57.47 %和27.41 %, 自动出院占13.17 %,病死率为1.95 %。其 中SGA病死率明显高于AGA和LGA, 而治愈好转率（84.88 %）则明显低于AGA 和LGA。 结论　我国新生儿科住院患儿中SGA的患病率和病死率较高,加强围生期监 测和干预以减少SGA发生、积极防治SGA并发症仍是我国目前围产工作的重点。     

早产小于胎龄儿与适于胎龄儿住院期间生长代谢的临床研究

目的 探讨早产小于胎龄儿（SGA）与适于胎龄儿（AGA）住院期间生长代谢的差异.方法 回顾性分析我院2008年1月至2012年12月收治的胎龄28 ～ 34周早产儿病例,根据胎龄与出生体重的关系分为SGA组与AGA组,比较两组早产儿一般情况、体格增长、血生化指标及合并症等.结果 纳入研究的早产儿共164例,SGA组78例,AGA组86例.2组早产儿入院胎龄、性别、发生呼吸窘迫综合征的比例、恢复出生体重日龄等差异均无统计学意义（P＞0.05）.SGA组与AGA组相比,窒息比例高（25.6％比12.8％）,住院时间长[36.5（28,45.5）天比28（22,36）天],肠外营养时间长[26（19,35）天比22（16,30）天],差异有统计学意义（P＜0.05）.恢复出生体重后,SGA组与AGA组相比平均每日体重增长速率快[（20.6＆#177;3.3） g/（kg＆#183; d）比（18.4＆#177;3.8）g/（kg＆#183;d）],每周头围增长速度快[（0.71＆#177;0.25） cm比（0.55＆#177;0.26） cm],差异有统计学意义（P＜0.05）,每周身长增长速度差异无统计学意义（P＞0.05）.SGA组前白蛋白低于AGA组,胆汁酸高于AGA组,败血症和慢性肺疾病发生率均高于AGA组（20.5％比9.3％,11.5％比1.2％）,差异均有统计学意义（P＜0.05）,早产儿视网膜病和坏死性小肠结肠炎发生率差异无统计学意义（P＞0.05）.结论 SGA早产儿恢复出生体重后生长速率及头围增长速度快于AGA早产儿,但身长增长速度无差异;SGA早产儿出生及出院时血前白蛋白水平均低于AGA早产儿;SGA早产儿更易发生胆汁淤积、败血症及慢性肺疾病.     

早产小于胎龄儿校正0～24月龄追赶生长的纵向研究

目的 了解早产小于胎龄儿（small for gestational age, SGA）和适于胎龄儿（appropriate for gestational age, AGA）校正0～24月龄期间生长发育状况和差异,为早产儿早期健康干预提供依据。方法 回顾性选取2019年7月—2022年7月在广州市妇女儿童医疗中心定期保健的824例早产儿作为研究对象,其中SGA 144例,AGA680例。分析和比较SGA组和AGA组出生及校正0～24月龄的体格发育数据。结果 SGA组在校正0～18月龄期间的体重和身长均落后于同月龄AGA组（P<0.05）,而校正24月龄时,两组的体重和身长比较差异无统计学意义（P>0.05）。校正24月龄时,85%(34/40) SGA早产儿和79%(74/94) AGA早产儿完成追赶生长。按胎龄分层分析的结果显示：胎龄<34周SGA亚组体重、身长在校正0～9月龄与胎龄<34周和≥34周AGA亚组比较差异有统计学意义（P<0.05）;胎龄≥34周SGA亚组体重、身长分别在校正0～18月龄和校正0～12月龄与胎龄<34周和≥34周AG...     

小于胎龄儿生后早期肾脏功能初探

目的对小于胎龄儿(SGA)生后早期肾脏功能进行回顾性对照研究,以探寻SGA儿早期肾功能损害的诊断方法。方法选择早产SGA儿40例、足月SGA儿33例作为研究组,并以早产适于胎龄儿(AGA)80例、足月儿AGA 33例作为对照组。比较各组入院48 h内血清尿素氮(BUN)、血清肌酐(SCr)、估算肾小球滤过率(eGFR)、血压、单位体重尿量以及蛋白尿的发生情况。结果早产儿SGA组的BUN低于AGA组(P0.05),两组间SCr、eGFR、血压的差异无统计学意义(P0.05)。与足月儿AGA组比较,SGA组的SCr较高、eGFR较低,差异均有统计学意义(P0.05);两组间BUN、血压的差异无统计学意义(P0.05)。早产儿或足月儿AGA与SGA之间单位体重尿量的差异无统计学意义(P0.05)。早产儿AGA与SGA之间蛋白尿发生率的差异无统计学意义(P0.05),足月儿AGA与SGA组均无蛋白尿发生。结论 SCr、eGFR对评估SGA早期肾脏损害较为敏感。足月儿SGA较AGA肾脏功能减低。     

小于胎龄儿幼儿期生活质量及其影响因素的研究

目的 了解小于胎龄儿(SGA)幼儿期的生活质量与适于胎龄儿(AGA)比较是否存在差异,并调查影响SGA 生活质量的因素.方法 采用婴幼儿生活质量问卷表(ITQOL SF-47)对儿保门诊就诊的出生时为SGA 和AGA 的1~3 岁幼儿进行生活质量调查,分别比较SGA 组(n=203)与AGA 组(n=130)、SGA 追赶组(n=119)与无追赶组(n=84)、SGA 首次儿保随访组(n=144)与多次儿保随访组(n=59)的生活质量.采用广义线性模型分析法调查影响SGA 生活质量的因素.结果 SGA 组ITQOL 总分低于AGA 组(630±99 vs 716±84,PPPP结论 SGA 幼儿期的生活质量低于同龄正常儿童.适当促进追赶生长及定期儿童保健对提高SGA 的生活质量有益;儿童性别、居住地、母亲文化程度对SGA 幼儿期的生活质量也有影响.     

High risk appropriate for gestational age (AGA) and small for gestational age (SGA) preterm infants. Neurological handicap and developmental abnormalities at five years of age

Outcome at five years of age of 110 high risk AGA, 71 high risk SGA preterm infants with similar birth weight and 102 term control infants was studied. Mean IQ in the 3 groups was not statistically different. Major handicaps were found in 16.3% of the AGA and in 8.5% of the SGA preterms. There was no major handicap among the controls. Minor neurodevelopmental abnormalities were present in 25.6% of AGA, 28.2% of SGA and 19.6% of controls. The types of neurodevelopmental handicaps were different in the 3 groups and generally more severe in the AGA group. All the major handicaps among AGA preterms were found in children with severe neonatal complications. In the SGA preterm group, only 1/3 of the major handicaps can be related to perinatal complications. Affective and behavior disorders were probably related in some way to neurodevelopmental achievement. This study showed that preterm infants with GA less than or equal to 32 weeks are more at risk than more mature SGA preterms with similar birth weight.     

Fetal and neonatal mortality of small-for-gestational age infants

Fetal and neonatal mortality of small-for-gestational age (SGA) infants in 1968–1982 were studied in the region of the University Central Hospital of Turku, Finland. During the study period, there were 254 fetal and 127 neonatal deaths in SGA infants. The fetal mortality rate of SGA infants declined from 49.9/1000 to 14.0/1000. The neonatal mortality rate of SGA infants declined from 23.8/1000 to 8.3/1000. The severely SGA infants with a birth weight below the 2.5th percentile had three times higher neonatal mortality rates than SGA infants with a birth weight between the 2.5th and the 10th percentiles. The main causes of fetal deaths were maternal diseases, placental and cord complications and fetal malnutrition, even though there was a decline in all these groups. Malformations remained the main cause of neonatal death during the study period, while there was a decline in deaths due to asphyxia and respiratory distress syndrome (RDS). The high mortality rates of SGA infants emphasize the need for early diagnosis and special attention during pregnancy, delivery and the neonatal period.Abbreviations SGA small-for-gestational age - AGA appropriate-for-gestational age - UCHT University Central Hospital of Turku - RDS respiratory distress syndrome     

多中心大于胎龄儿新生儿期死亡原因及风险的病例对照研究

目的探讨大于胎龄儿（LGA）新生儿期死亡原因及死亡风险。方法病例对照研究。《中国新生儿死亡原因多中心调查》数据库包括39家三级医院新生儿科胎龄≥24周的所有死亡病例数据，以数据库中的LGA为病例组（单胎出生，晚期早产儿或足月儿），分别以数据库中全部适于胎龄儿（AGA）和配对的AGA（1∶1）为对照组（匹配条件：单胎、胎龄、性别、来源医院），比较LGA和AGA新生儿期死亡原因。通过整体人群中LGA和AGA活产婴儿比例，估计整体人群LGA死亡风险。采集母亲因素、围生期因素、新生儿因素和死亡原因。根据WHO ICD-PM分类标准分为11类新生儿期死亡原因。结果2016年7月1日至2019年6月30日数据库中新生儿期死亡的LGA和AGA分别为126和1 183例。LGA组新生儿除出生体重、母亲妊娠期糖尿病患病率外均与匹配AGA组差异无统计学意义。多因素回归分析，矫正出生体重和妊娠期糖尿病因素，LGA组早期新生儿死亡风险较匹配AGA组增加1.94倍（OR=2.938，95%CI: 1.346~6.416,P=0.007）。LGA的主要死亡原因排序为先天性疾病（29.4%）、围产期窒息（21.4%）、呼吸系统疾病和心血管疾病（14.3%）、重症感染（11.9%）。LGA组新生儿全因死亡风险与匹配AGA组差异无统计学意义，LGA组死于重症感染（N6：细菌性败血症,细菌脑膜炎，肺炎，病毒感染等）的风险低于匹配AGA组（OR=0.541，95%CI：0.320~0.912，P=0.019）。结论国内三级医院晚期早产儿和足月单胎LGA的主要死亡原因构成及其比例与AGA相比总体一致，LGA并不增加新生儿期的死亡风险，且死于重症感染风险低于AGA。     

多中心大于胎龄儿新生儿期死亡原因及风险的病例对照研究

目的探讨大于胎龄儿（LGA）新生儿期死亡原因及死亡风险。方法病例对照研究。《中国新生儿死亡原因多中心调查》数据库包括39家三级医院新生儿科胎龄≥24周的所有死亡病例数据,以数据库中的LGA为病例组（单胎出生,晚期早产儿或足月儿）,分别以数据库中全部适于胎龄儿（AGA）和配对的AGA（1∶1）为对照组（匹配条件：单胎、胎龄、性别、来源医院）,比较LGA和AGA新生儿期死亡原因。通过整体人群中LGA和AGA活产婴儿比例,估计整体人群LGA死亡风险。采集母亲因素、围生期因素、新生儿因素和死亡原因。根据WHO ICD-PM分类标准分为11类新生儿期死亡原因。结果2016年7月1日至2019年6月30日数据库中新生儿期死亡的LGA和AGA分别为126和1 183例。LGA组新生儿除出生体重、母亲妊娠期糖尿病患病率外均与匹配AGA组差异无统计学意义。多因素回归分析,矫正出生体重和妊娠期糖尿病因素,LGA组早期新生儿死亡风险较匹配AGA组增加1.94倍（OR=2.938,95%CI: 1.346~6.416,P=0.007）。LGA的主要死亡原因排序为先天性疾病（29.4%）、围产期窒息（21.4%）、呼吸系统疾病和心血管疾病（14.3%）、重症感染（11.9%）。LGA组新生儿全因死亡风险与匹配AGA组差异无统计学意义,LGA组死于重症感染（N6：细菌性败血症,细菌脑膜炎,肺炎,病毒感染等）的风险低于匹配AGA组（OR=0.541,95%CI：0.320~0.912,P=0.019）。结论国内三级医院晚期早产儿和足月单胎LGA的主要死亡原因构成及其比例与AGA相比总体一致,LGA并不增加新生儿期的死亡风险,且死于重症感染风险低于AGA。     

Intracranial hemorrhage in small-for-gestational-age neonates: comparison with weight-matched appropriate-for-gestational-age infants

In a comparative study of 93 small-for-gestational-age (SGA) infants against 93 weight-matched, appropriate-for-gestational-age (AGA) neonates, the SGA group exhibited a significantly lower incidence of periventricular-intraventricular type intracranial hemorrhage (ICH) at the first ultrasound scan than did the AGA neonates (9/93 vs 21/93; p less than 0.02). This apparent advantage was no longer maintained in later scans of the first week (16/93 vs 27/93; NS), despite the fact that the SGA group were 4 weeks advanced in gestational age and had fewer respiratory problems than the AGA controls. It is prudent, therefore, to follow SGA infants closely for ICH by repeat ultrasound examinations even if the first scan is negative. Evaluation of the subgroup of SGA infants with ICH against the total SGA population revealed lower admission body temperature and Apgar scores, and higher incidence of asphyxia, resuscitation, and mortality. The above observations in SGA infants with ICH and the lack of a similar trend between the AGA infants with ICH and the total AGA population suggest that SGA status, hypothermia, and ICH are interrelated. Hypothermia, therefore, can be used as a convenient marker for the possibility of ICH in low birth weight SGA infants. The authors' data is consistent with the view that hypothermia and ICH are both the consequences of perinatal asphyxia in SGA infants and probably reflect the magnitude of stormy perinatal events.     

Effects of gestation and birth weight on the growth and development of very low birthweight small for gestational age infants: a matched group comparison

AIMS: To investigate the effects of small for gestational age (SGA) in very low birthweight (VLBW) infants on growth and development until the fifth year of life. METHODS: VLBW (< 1500 g) infants, selected from a prospective study, were classified as SGA (n = 115) on the basis of birth weight below the 10th percentile for gestational age and were compared with two groups of appropriate for gestational age (AGA) infants matched according to birth weight (AGA-BW; n = 115) or gestation at birth (AGA-GA; n = 115). Prenatal, perinatal, and postnatal risk factors were recorded, and duration and intensity of treatment were computed from daily assessments. Body weight, length, and head circumference were measured at birth, five and 20 months (corrected for prematurity), and at 56 months. General development was assessed at five and 20 months with the Griffiths scale of babies abilities, and cognitive development at 56 months with the Columbia mental maturity scales, a vocabulary (AWST) and language comprehension test (LSVTA). RESULTS: Significant group differences were found in complications (pregnancy, birth, and neonatal), parity, and multiple birth rate. The AGA-GA group showed most satisfactory growth up to 56 months, with both the AGA-BW and SGA groups lagging behind. The AGA-GA group also scored significantly more highly on all developmental and cognitive tests than the other groups. Developmental test results were similar for the SGA and AGA-BW groups at five and 20 months, but AGA-BW infants (lowest gestation) had lower scores on performance intelligence quotient and language comprehension at 56 months than the SGA group. When prenatal and neonatal complications, parity, and multiple birth were accounted for, group differences in growth remained, but differences in cognitive outcome disappeared after five months. CONCLUSIONS: Being underweight and with a short gestation (SGA and VLBW) leads to poor weight gain and head growth in infancy but does not result in poorer growth than in infants of the same birth weight but shorter gestation (AGA-BW) in the long term. SGA is related to early developmental delay and later language problems; however, neonatal complications may have a larger detrimental effect on long term cognitive development of VLBW infants than whether they are born SGA or AGA.     

Neurosonographic findings in premature infants and infants with intrauterine growth retardation with a birth weight below 1,500 grams]

The cranial ultrasound of 111 preterm infants were reviewed. 57 patients were appropriate for gestational age (AGA) and 54 small for gestational age (SGA). In the two groups, the incidence of peri-intraventricular hemorrhage (PIVH), posthemorrhagic ventricular dilation (VM) and peri-ventricular leucomalacia (PVL) was compared. PIVH was more common in AGA than in SGA babies (36.8% vs 18.5%). In both groups (AGA and SGA), birth weight less than 1000 g should be considered a further risk factor for hemorrhagic brain lesion (72.2% in AGA babies less than 1000 g and 20.5% ind AGA babies greater than 1000 g birth weight, p less than 0.01) (34.8% in SGA babies less than 1000 g and 6.4% in SGA babies greater than 1000 g birth weight, p less than 0.05). However, ischemic brain lesions (PVL) were not dependent from birth weight (p greater than 0.5). This study shows that low birth weight infants are an eterogeneous group of babies with different risk of hemorrhagic or ischemic cerebral lesion depending on gestational age and birth weight.     

吸毒孕妇所生新生儿临床结局分析

目的 分析吸毒孕妇围生儿的临床结局.方法 回顾性分析105例吸毒孕妇所生新生儿的临床资料,包括早产儿、低体重儿、新生儿窒息、新生儿呼吸窘迫综合征(neonatal respiratory distress syndrome,NRDS)、颅内出血、先天畸形及死亡,并与50例健康孕妇所生的新生儿(对照组)进行比较,同时观察新生儿戒断综合征的发生情况.结果 105例吸毒孕妇中,自然分娩80例,剖宫产25例.早产56例(53.3％),平均出生体重(2 534±1 234)g,新生儿窒息25例(23.8％),NRDS 18例(17.1％),颅内出血16例(15.2％),先天畸形3例(2.9％).吸毒孕妇所生新生儿胎龄及出生体重低于对照组,吸毒孕妇围生儿发生早产、低体重儿、新生儿窒息、NRDS及颅内出血的比例高于对照组,差异有统计学意义(P＜0.05).与吸毒时间≤2年者比较,吸毒时间＞2年者所生新生儿早产、低体重儿、新生儿窒息、NRDS的比例更高,差异有统计学意义(P＜0.05).静脉注射吸毒孕妇发生早产、低体重儿、新生儿窒息、NRDS的比例高于口服吸毒者,差异有统计学意义(P＜0.05).吸毒组新生儿红细胞、白细胞、天门冬氨酸氨基转移酶、丙氨酸转氨酶高于对照组,血小板及白蛋白低于对照组,差异有统计学意义(P＜0.05).共30例新生儿出现新生儿戒断综合征表现.105例新生儿中治愈99例,死亡6例,死亡原因包括3例NRDS合并肺部感染,1例严重颅内出血,1例窒息,1例多器官功能衰竭.结论 吸毒会导致新生儿早产增加,窒息及NRDS的比例升高.妊娠晚期吸毒会导致新生儿戒断综合征.