Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where K. de Boer is active.

Publication


Featured researches published by K. de Boer.


British Journal of Obstetrics and Gynaecology | 2010

Rise in maternal mortality in the Netherlands

Joke M. Schutte; Eric A.P. Steegers; N. Schuitemaker; Job G. Santema; K. de Boer; M. Pel; G. Vermeulen; W. Visser; J. van Roosmalen

Please cite this paper as: Schutte J, Steegers E, Schuitemaker N, Santema J, de Boer K, Pel M, Vermeulen G, Visser W, van Roosmalen J, the Netherlands Maternal Mortality Committee. Rise in maternal mortality in the Netherlands. BJOG 2009;117:399–406.


British Journal of Obstetrics and Gynaecology | 1991

Coagulation studies in the syndrome of haemolysis, elevated liver enzymes and low platelets

K. de Boer; H. R. Büller; Jw Ten Cate; Pieter E. Treffers

Summary. The presence of disseminated intravascular coagulation (DIC) in the syndrome of haemolysis, elevated liver enzymes and low platelets (HELLP) is debated. We assessed the occurrence of decompensated and compensated DIC (using predefined criteria) in 15 consecutive nulliparous pregnant patients with gestastional hypertension combined with the HELLP syndrome and in 12 consecutive nulliparous controls with pregnancy induced hypertension (PIH) but without the HELLP syndrome. A combination of routine coagulation assays revealed the absence of decompensated DIC in all studied patients. However, using more specific and sensitive coagulation assays, compensated DIC was observed in all HELLP patients and in three patients in the control group. The mean values of antithrombin III, thrombin‐antithrombin III complexes and protein C in the HELLP and the control group were 66 vs 87% (P=0.0004), 21 vs 8 ng/ml (P=0.0008) and 57 vs 90% (P=0.0018) respectively. We conclude that HELLP patients show evidence of compensated DIC which may have pathophysiological significance for the observed organ damage.


British Journal of Obstetrics and Gynaecology | 2014

Vaginal birth after a caesarean section: the development of a Western European population‐based prediction model for deliveries at term

E. N. C. Schoorel; S. M. J. van Kuijk; Sonja Melman; Jan G. Nijhuis; Luc Smits; Robert Aardenburg; K. de Boer; Friso M.C. Delemarre; I. M. van Dooren; Maureen Franssen; Mesrure Kaplan; Gunilla Kleiverda; Simone Kuppens; Anneke Kwee; Frans T. H. Lim; Bwj Mol; Frans J.M.E. Roumen; J. M. Sikkema; Ellen Smid-Koopman; H. Visser; Mallory Woiski; Rosella Hermens; H. C. J. Scheepers

To develop and internally validate a model that predicts the outcome of an intended vaginal birth after caesarean (VBAC) for a Western European population that can be used to personalise counselling for deliveries at term.


British Journal of Obstetrics and Gynaecology | 2012

Should cervical favourability play a role in the decision for labour induction in gestational hypertension or mild pre-eclampsia at term? An exploratory analysis of the HYPITAT trial

Parvin Tajik; K. van der Tuuk; Corine M. Koopmans; Hendricus Groen; M.G. van Pampus; Pp van der Berg; J.A. van der Post; Aj van Loon; Cjm de Groot; Anneke Kwee; Ajm Huisjes; E. J. R. Van Beek; D.N. Papatsonis; K.W. Bloemenkamp; G.A. van Unnik; Martina Porath; R.J. Rijnders; R.H. Stigter; K. de Boer; H.C. Scheepers; Aeilko H. Zwinderman; P. M. M. Bossuyt; B.W. Mol

Please cite this paper as: Tajik P, van der Tuuk K, Koopmans C, Groen H, van Pampus M, van der Berg P, van der Post J, van Loon A, de Groot C, Kwee A, Huisjes A, van Beek E, Papatsonis D, Bloemenkamp K, van Unnik G, Porath M, Rijnders R, Stigter R, de Boer K, Scheepers H, Zwinderman A, Bossuyt P, Mol B. Should cervical favourability play a role in the decision for labour induction in gestational hypertension or mild pre‐eclampsia at term? An exploratory analysis of the HYPITAT trial. BJOG 2012;119:1123–1130.


British Journal of Obstetrics and Gynaecology | 2014

Predicting successful intended vaginal delivery after previous caesarean section: external validation of two predictive models in a Dutch nationwide registration-based cohort with a high intended vaginal delivery rate

E. N. C. Schoorel; Sonja Melman; S. M. J. van Kuijk; William A. Grobman; Anneke Kwee; Bwj Mol; Jan G. Nijhuis; Luc Smits; Robert Aardenburg; K. de Boer; Friso M.C. Delemarre; I. M. van Dooren; Maureen Franssen; Gunilla Kleiverda; Mesrure Kaplan; Simone Kuppens; Frans T. H. Lim; J. M. Sikkema; Ellen Smid-Koopman; H. Visser; Francis Vrouenraets; Mallory Woiski; Rosella Hermens; H. C. J. Scheepers

To externally validate two models from the USA (entry‐to‐care [ETC] and close‐to‐delivery [CTD]) that predict successful intended vaginal birth after caesarean (VBAC) for the Dutch population.


British Journal of Obstetrics and Gynaecology | 2014

Involving women in personalised decision-making on mode of delivery after caesarean section: the development and pilot testing of a patient decision aid

Enc Schoorel; Emy Vankan; H.C. Scheepers; Bcc Augustijn; Carmen D. Dirksen; M de Koning; Smj van Kuijk; Anneke Kwee; Sonja Melman; Jan G. Nijhuis; Robert Aardenburg; K. de Boer; Thm Hasaart; Bwj Mol; Marianne Nieuwenhuijze; M.G. van Pampus; J. van Roosmalen; Fjme Roumen; R. R. P. De Vries; Mgaj Wouters; T. van der Weijden; Rpmg Hermens

To develop a patient decision aid (PtDA) for mode of delivery after caesarean section that integrates personalised prediction of vaginal birth after caesarean (VBAC) with the elicitation of patient preferences and evidence‐based information.


British Journal of Obstetrics and Gynaecology | 2018

Comparing induction of labour with oral misoprostol or Foley catheter at term: cost‐effectiveness analysis of a randomised controlled multi‐centre non‐inferiority trial

M. L.G. ten Eikelder; G. J. van Baaren; K. Oude Rengerink; M. Jozwiak; J.W. de Leeuw; Gunilla Kleiverda; Inge M. Evers; K. de Boer; Jozien T. J. Brons; Kitty W. M. Bloemenkamp; B.W. Mol

To assess the costs of labour induction with oral misoprostol versus Foley catheter.


International Journal of Gynecology & Obstetrics | 2009

O832 Rise in maternal mortality in The Netherlands

Joke M. Schutte; E.A.P. Steegers; N. Schuitemaker; Job G. Santema; K. de Boer; M. Pel; G. Vermeulen; Jos van Roosmalen

identified as indepedent predictors for complete debulking. If all three factors were positive the AGO score was called positive. This score was prospectively validated, further endpoints were selection process of surgical candidates and comorbidity. Method: Prospective validation of the AGO-score for surgery for platinum-sensitive ROC in multicentre trial. With the planned sample size of 122 score-positive operated patients, a complete resection rate of at least 75% would confirm with 95% probability correct prediction of complete resection in >2 out of 3 patients selected by the score. Results: 412 patients with first relapse and 105 with 2nd relapse of a platinum-sensitive ROC were screened between 08/06 and 03/08. 193 (47%) of the patients with first relapse were deemed eligible for surgery. 127 of these 193 pts (66%) underwent surgery and had a positive score. Complete resection was achieved in 76% (95%CI: 69–84%) of score positive pts indicating the usefullness of the predictive score. The rate of re-laparotomies caused by complications was 8.7%. Two patients (1.6%) died within 60 days after surgery. Conclusion: The AGO-score is a useful and reliable tool to predict complete resection in more than 2 of 3 patients with ROC. The co-morbidity of surgery in this cohort is comparable to primary surgery in AOC. A randomized trial based on these data is already planned.


Thrombosis and Haemostasis | 1992

Deep vein thrombosis in obstetric patients: diagnosis and risk factors.

K. de Boer; H. R. Büller; J. W. Ten Cate; M. Levi


Obstetric Anesthesia Digest | 2014

Cervical Pessaries for Prevention of Preterm Birth in Women With a Multiple Pregnancy (ProTWIN): A Multicentre, Open-Label Randomized Controlled Trial

Sophie Liem; Ewoud Schuit; Maud Hegeman; Joke Bais; K. de Boer; K.W. Bloemenkamp; Jozien T. J. Brons; Hans Duvekot; Bas Nij Bijvank; Maureen Franssen; Ingrid Gaugler; I. M. de Graaf; M.A. Oudijk; D.N. Papatsonis; Paula Pernet; Martina Porath; Liesbeth Scheepers; Marko Sikkema; Jan Sporken; H. Visser; W. van Wijngaarden; Mallory Woiski; M.G. van Pampus; B.W. Mol; Dick J. Bekedam

Collaboration


Dive into the K. de Boer's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar

B.W. Mol

University of Adelaide

View shared research outputs
Top Co-Authors

Avatar

H.C. Scheepers

Maastricht University Medical Centre

View shared research outputs
Top Co-Authors

Avatar

M.G. van Pampus

University Medical Center Groningen

View shared research outputs
Top Co-Authors

Avatar

Corine M. Koopmans

University Medical Center Groningen

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

C.J.M. de Groot

VU University Medical Center

View shared research outputs
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge