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Featured researches published by G Martens.


Reproductive Biomedicine Online | 2005

Obstetric and perinatal outcome of 1655 ICSI and 3974 IVF singleton and 1102 ICSI and 2901 IVF twin births: a comparative analysis

Willem Ombelet; Isabelle Cadron; Jan Gerris; Petra De Sutter; Eugene Bosmans; G Martens; Gunther Ruyssinck; Paul Defoort; Geert Molenberghs; Wilfried Gyselaers

A total of 3974 IVF and 1655 ICSI singleton births and 2901 IVF and 1102 ICSI twin births were evaluated. Pregnancies after both fresh and frozen transfers were included. IVF and ICSI singleton pregnancies were very similar for most obstetric and perinatal variables. The only significant difference was a higher risk for prematurity (< 37 weeks of amenorrhoea) in IVF pregnancies compared with ICSI pregnancies (12.4 versus 9.2%, OR = 1.39, 95% CI = 1.15-1.70). For twin pregnancies, differences were not statistically different except for a higher incidence of stillbirths in the ICSI group (2.08 versus 1.03%, OR = 2.04, 95% CI = 1.14-3.64). Intrauterine growth retardation with or without pregnancy-induced hypertension was observed more often in the ICSI group. Regression analysis of the data with correction for parity and female age showed similar results for twins. For singletons, this analysis showed similar results with the exception of low birth weight babies (< 2500 g), which were also observed more often in IVF pregnancies (9.6 versus 7.9%, OR = 0.79, CI = 0.65-0.98, P = 0.03). This large case-comparative retrospective analysis showed that the obstetric outcome and perinatal health of IVF and ICSI pregnancies is comparable.


Contraception | 1992

The FlexiGard®330 ICC, an ultrasound evaluation

D Wildemeersch; Paul Defoort; G Martens

The FlexiGard 330 intrauterine copper contraceptive (ICC) was studied by ultrasound in 405 patients immediately following insertion and at each follow-up visit, for up to 5 years. The present study confirms the validity of the anchoring concept for the suspension of bioactive substances in the uterine cavity. The major conclusion from the study is that the anchor is non-migrating even when observed over a long period of time. Ultrasound examination is the method of choice to evaluate proper insertion technique as well as proper positioning of the device at follow-up.


Human Reproduction | 2006

Perinatal outcome of 12 021 singleton and 3108 twin births after non-IVF-assisted reproduction: a cohort study

Willem Ombelet; G Martens; Petra De Sutter; Jan Gerris; Eugene Bosmans; Gunther Ruyssinck; Paul Defoort; Geert Molenberghs; Wilfried Gyselaers


Archive | 1999

Perinatale activiteiten in Vlaanderen 1998

A Bekaert; G Martens; H Devlieger; Jj Amy; Paul Defoort; Hendrik Cammu


Facts, views & vision in obgyn | 2011

Understanding rising caesarean section trends: relevance of inductions and prelabour obstetric interventions at term.

A. Thaens; A. Bonnaerens; G Martens; Tinne Mesens; C. Van Holsbeke; E De Jonge; Wilfried Gyselaers


Archive | 1999

Perinatal Activities in Flanders 1998

A Bekaert; G Martens; H Devlieger; Jj Amy; Paul Defoort; Hendrik Cammu


Human Reproduction | 2010

Session 36: Complications

N. Roos; L. Sahlin; G. Ekman-Ordeberg; H. Falconer; H. Kieler; O. Stephansson; Michael J. Davies; V.M. Moore; K. Willson; A. Chan; E. Haan; Ilse Delbaere; Jan Gerris; D. De Neubourg; Stijn Vansteelandt; G Martens; P. Verdonk; P. De Sutter; Marleen Temmerman; G. Viot; S. Epelboin; François Olivennes


Facts, views & vision in obgyn | 2012

Increasing prevalence of macrosomia in Flanders, Belgium: an indicator of population health and a burden for the future

Wilfried Gyselaers; G Martens


Archive | 2009

De Robson-analyse is een efficiënte methode om een stijgende sectiotrend te brekeneen breken

J. Muys; Wilfried Gyselaers; G Martens


PERINATALE ACTIVITEITEN IN VLAANDEREN ... : S.P.E. | 2001

Toenemende maternale leeftijd, toenemend aantal sectio's

Paul Defoort; G Martens

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Jan Gerris

Radboud University Nijmegen

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Eugene Bosmans

Catholic University of Leuven

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Geert Molenberghs

Katholieke Universiteit Leuven

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Petra De Sutter

Ghent University Hospital

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Hendrik Cammu

École Normale Supérieure

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C. Van Holsbeke

Katholieke Universiteit Leuven

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D. De Neubourg

Katholieke Universiteit Leuven

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