Christoph Lees

Christoph Lees


Research Focus & Metrics

Academic Career Length

27Years (2000-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 August 2020 in Ultrasound in Obstetrics & Gynecology
Verified
Journal Article
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CLChristoph Lees
Christoph Lees
TST. Stampalija
T. Stampalija
ABAhmet Alexander Baschat
Ahmet Alexander Baschat
FCF. da Silva Costa
F. da Silva Costa
FMFerrazzi Enrico Maria
Ferrazzi Enrico Maria
JUJ. Unterscheider
J. Unterscheider

23 September 2013 in Ultrasound in Obstetrics & Gynecology
Verified
Journal Article
Open access
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CLChristoph Lees
Christoph Lees
NMN. Marlow
N. Marlow
BAB. Arabin
B. Arabin
CBC. M. Bilardo
C. M. Bilardo
CBC. Brezinka
C. Brezinka
TGthe TRUFFLE Group
the TRUFFLE Group
Objectives: Few data exist for counseling and perinatal management of women after an antenatal diagnosis of early‐onset fetal growth restriction. Yet, the consequences of preterm delivery and its attendant morbidity for both mother and baby are far reaching. The objective of this study was to describe perinatal morbidity and mortality following early‐onset fetal growth restriction based on time of antenatal diagnosis and delivery.Methods: We report cohort outcomes for a prospective multicenter randomized management study of fetal growth restriction (Trial of Randomized Umbilical and Fetal Flow in Europe (TRUFFLE)) performed in 20 European perinatal centers between 2005 and 2010. Women with a singleton fetus at 26–32 weeks of gestation, with abdominal circumference < 10th percentile and umbilical artery Doppler pulsatility index > 95th percentile, were recruited. The main outcome measure was a composite of fetal or neonatal death or severe morbidity: survival to discharge with severe brain injury, bronchopulmonary dysplasia, proven neonatal sepsis or necrotizing enterocolitis.Results: Five‐hundred and three of 542 eligible women formed the study group. Mean ± SD gestational age at diagnosis was 29 ± 1.6 weeks and mean ± SD estimated fetal weight was 881 ± 217 g; 12 (2.4%) babies died in utero. Gestational age at delivery was 30.7 ± 2.3 weeks, and birth weight was 1013 ± 321 g. Overall, 81% of deliveries were indicated by fetal condition and 97% were by Cesarean section. Of 491 liveborn babies, outcomes were available for 490 amongst whom there were 27 (5.5%) deaths and 118 (24%) babies suffered severe morbidity. These babies were smaller at birth (867 ± 251 g) and born earlier (29.6 ± 2.0 weeks). Death and severe morbidity were significantly related to gestational age, both at study entry and delivery and also with the presence of maternal hypertensive morbidity. The median time to delivery was 13 days for women without hypertension, 8 days for those with gestational hypertension, 4 days for pre‐eclampsia and 3 days for HELLP syndrome.Conclusions: Fetal outcome in this study was better than expected from contemporary reports: perinatal death was uncommon (8%) and 70% survived without severe neonatal morbidity. The intervals to delivery, death and severe morbidity were related to the presence and severity of maternal hypertensive conditions. Copyright © 2013 ISUOG. Published by John Wiley & Sons Ltd.

1 May 2015 in The Lancet
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CLChristoph Lees
Christoph Lees
NMNeil Marlow
Neil Marlow
AWAleid van Wassenaer-Leemhuis
Aleid van Wassenaer-Leemhuis
BABirgit Arabin
Birgit Arabin
CBCaterina M Bilardo
Caterina M Bilardo
HWHans Wolf
Hans Wolf

23 February 2021 in Ultrasound in Obstetrics & Gynecology
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EMEdward Mullins
Edward Mullins
MHMark L. Hudak
Mark L. Hudak
J(Jayanta Banerjee Md (Res)
Jayanta Banerjee Md (Res)
TCTrace Getzlaff Bs Cs
Trace Getzlaff Bs Cs
JTJulia Townson
Julia Townson
APA. Perry
A. Perry
Objective: Few large cohort studies have reported data on maternal, fetal, perinatal and neonatal outcomes associated with severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) infection in pregnancy. We report the outcome of infected pregnancies from a collaboration formed early during the pandemic between the investigators of two registries, the UK and Global Pregnancy and Neonatal outcomes in COVID‐19 (PAN‐COVID) study and the American Academy of Pediatrics (AAP) Section on Neonatal–Perinatal Medicine (SONPM) National Perinatal COVID‐19 Registry.Methods: This was an analysis of data from the PAN‐COVID registry (1 January to 25 July 2020), which includes pregnancies with suspected or confirmed maternal SARS‐CoV‐2 infection at any stage in pregnancy, and the AAP‐SONPM National Perinatal COVID‐19 registry (4 April to 8 August 2020), which includes pregnancies with positive maternal testing for SARS‐CoV‐2 from 14 days before delivery to 3 days after delivery. The registries collected data on maternal, fetal, perinatal and neonatal outcomes. The PAN‐COVID results are presented overall for pregnancies with suspected or confirmed SARS‐CoV‐2 infection and separately in those with confirmed infection.Results: We report on 4005 pregnant women with suspected or confirmed SARS‐CoV‐2 infection (1606 from PAN‐COVID and 2399 from AAP‐SONPM). For obstetric outcomes, in PAN‐COVID overall and in those with confirmed infection in PAN‐COVID and AAP‐SONPM, respectively, maternal death occurred in 0.5%, 0.5% and 0.2% of cases, early neonatal death in 0.2%, 0.3% and 0.3% of cases and stillbirth in 0.5%, 0.6% and 0.4% of cases. Delivery was preterm (< 37 weeks' gestation) in 12.0% of all women in PAN‐COVID, in 16.1% of those women with confirmed infection in PAN‐COVID and in 15.7% of women in AAP‐SONPM. Extreme preterm delivery (< 27 weeks' gestation) occurred in 0.5% of cases in PAN‐COVID and 0.3% in AAP‐SONPM. Neonatal SARS‐CoV‐2 infection was reported in 0.9% of all deliveries in PAN‐COVID overall, in 2.0% in those with confirmed infection in PAN‐COVID and in 1.8% in AAP‐SONPM; the proportions of neonates tested were 9.5%, 20.7% and 87.2%, respectively. The rates of a small‐for‐gestational‐age (SGA) neonate were 8.2% in PAN‐COVID overall, 9.7% in those with confirmed infection and 9.6% in AAP‐SONPM. Mean gestational‐age‐adjusted birth‐weight Z‐scores were −0.03 in PAN‐COVID and −0.18 in AAP‐SONPM.Conclusions: The findings from the UK and USA registries of pregnancies with SARS‐CoV‐2 infection were remarkably concordant. Preterm delivery affected a higher proportion of women than expected based on historical and contemporaneous national data. The proportions of pregnancies affected by stillbirth, a SGA infant or early neonatal death were comparable to those in historical and contemporaneous UK and USA data. Although maternal death was uncommon, the rate was higher than expected based on UK and USA population data, which is likely explained by underascertainment of women affected by milder or asymptomatic infection in pregnancy in the PAN‐COVID study, although not in the AAP‐SONPM study. The data presented support strong guidance for enhanced precautions to prevent SARS‐CoV‐2 infection in pregnancy, particularly in the context of increased risks of preterm delivery and maternal mortality, and for priority vaccination of pregnant women and women planning pregnancy. Copyright © 2021 ISUOG. Published by John Wiley & Sons Ltd.

10 January 2022 in American Journal of Obstetrics and Gynecology
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Journal Article
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CLChristoph Lees
Christoph Lees
RRRoberto Romero
Roberto Romero
TSTamara Stampalija
Tamara Stampalija
ADAndrea Dall'Asta
Andrea Dall'Asta
GDGreggory R. DeVore
Greggory R. DeVore
KHKurt Hecher
Kurt Hecher

11 March 2020 in Ultrasound in Obstetrics & Gynecology
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Journal Article
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LPLiona C. Poon
Liona C. Poon
HYHuixia Yang
Huixia Yang
CLChristoph Lees
Christoph Lees
JCJoshua A. Copel
Joshua A. Copel
TLTak Yeung Leung
Tak Yeung Leung
FPFederico Prefumo
Federico Prefumo
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