全球精选文摘 - 英格兰、北爱尔兰及威尔士1994～2003年双胎出生的先后顺序与分娩相关的围产期死亡：回顾性队列研究

Birth order of twins and risk of perinatal death related to delivery in England, Northern Ireland, and Wales, 1994-2003: retrospective cohort study

Smith GCS, Fleming KM, White IR 2009/5/27 10:50:40

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BMJ, 2007,

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Abstract
Objective:
To determine the effect of birth order on the risk of perinatal death in twin pregnancies.

Design:
Retrospective cohort study.

Setting:
England, Northern Ireland, and Wales, 1994-2003.

Participants:
1377 twin pregnancies with one intrapartum stillbirth or neonatal death from causes other than congenital abnormality and one surviving infant.

Main Outcome Measures:
The risk of perinatal death in the first and second twin estimated with conditional logistic regression.

Results:
There was no association between birth order and the risk of death overall (odds ratio 1.0, 95% confidence interval 0.9 to 1.1). However, there was a highly significant interaction with gestational age (P<0.001). There was no association between birth order and the risk of death among infants born before 36 weeks' gestation but there was an increased risk of death among second twins born at term (2.3, 1.7 to 3.2, P<0.001), which was stronger for deaths caused by intrapartum anoxia or trauma (3.4, 2.2 to 5.3). Among term births, there was a trend (P=0.1) towards a greater risk of the second twin dying from anoxia among those delivered vaginally (4.1, 1.8 to 9.5) compared with those delivered by caesarean section (1.8, 0.9 to 3.6).

Conclusions:
In this cohort, compared with first twins, second twins born at term were at increased risk of perinatal death related to delivery. Vaginally delivered second twins had a fourfold risk of death caused by intrapartum anoxia.

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高血压	慢性阻塞性肺病
脂肪性肝病	糖尿病
卒中	肺癌
冠心病	子宫内膜异位症
结直肠癌	乳腺癌
心力衰竭	心律失常

病例分析 [栏目介绍]

甲状腺功能亢进合并黄疸

王燕燕王曙

上海交通大学附属瑞金医院内分泌科

患者，女，69岁。2009年1月无明显诱因下出现乏力，当时程度较轻，未予以重视。2009年3月患者乏力症状加重，尿色逐渐加深，大便习惯改变，颜色变淡。4月18日入我院感染科治疗，诉轻度头晕、心慌，体重减轻10kg。无肝区疼痛，无发热，无腹痛、腹泻、腹胀、里急后重，无恶性、呕吐等。入院半月前于外院就诊，查肝功能：ALT 601IU/L，AST 785IU/L，TBIL 97.7umol/L，白蛋白 41g/L，甲状腺功能：游离T3 30.6pmol/L，游离T4 51.9pmol/L，心电图示快速房颤。

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