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Zwolle, Netherlands

Schutte J.M.,Isala Klinieken Zwolle | Steegers E.A.P.,Erasmus University Rotterdam | Schuitemaker N.W.E.,Diakonessenhuis Utrecht | Santema J.G.,Medical Center Leeuwarden | And 5 more authors.
BJOG: An International Journal of Obstetrics and Gynaecology | Year: 2010

Objective To assess causes, trends and substandard care factors in maternal mortality in the Netherlands. Design Confidential enquiry into the causes of maternal mortality. Setting Nationwide in the Netherlands. Population 2,557,208 live births. Methods Data analysis of all maternal deaths in the period 1993-2005. Main outcome measures Maternal mortality. Results The overall maternal mortality ratio was 12.1 per 100 000 live births, which was a statistically significant rise compared with the maternal mortality ratio of 9.7 in the period 1983-1992 (OR 1.2, 95% CI 1.0-1.5). The most frequent direct causes were (pre-)eclampsia, thromboembolism, sudden death in pregnancy, sepsis, obstetric haemorrhage and amniotic fluid embolism. The number of indirect deaths also increased, mainly caused by an increase in cardiovascular disorders (OR 2.5, 95% CI 1.4-4.6). Women younger than 20 years and older than 45 years, those with high parity or from nonwestern immigrant populations were at higher risk. Most substandard care was found in women with pre-eclampsia (91%) and in immigrant populations (62%). Conclusions Maternal mortality in the Netherlands has increased since 1983-1992. Pre-eclampsia remains the number one cause. Groups at higher risk for complications during pregnancy should be better identified early in pregnancy or before conception, in order to receive preconception advice and more frequent antenatal visits. There is an urgent need for the better education of women and professionals concerning the danger signs, and for the training of professionals in order to improve maternal health care. © RCOG 2010 BJOG An International Journal of Obstetrics and Gynaecology. Source


Gaarenstroom K.N.,Leiden University | Van Gorp T.,Maastricht University | Arts H.J.G.,University of Groningen | Ter Brugge H.G.,Isala Klinieken Zwolle | And 8 more authors.
BMC Cancer | Year: 2012

Background: Standard treatment of advanced ovarian cancer is surgery and chemotherapy. The goal of surgery is to remove all macroscopic tumour, as the amount of residual tumour is the most important prognostic factor for survival. When removal off all tumour is considered not feasible, neoadjuvant chemotherapy (NACT) in combination with interval debulking surgery (IDS) is performed. Current methods of staging are not always accurate in predicting surgical outcome, since approximately 40% of patients will have more than 1 cm residual tumour after primary debulking surgery (PDS). In this study we aim to assess whether adding laparoscopy to the diagnostic work-up of patients suspected of advanced ovarian carcinoma may prevent unsuccessful primary debulking surgery for ovarian cancer.Methods: Multicentre randomized controlled trial, including all gynaecologic oncologic centres in the Netherlands and their affiliated hospitals. Patients are eligible when they are planned for PDS after conventional staging. Participants are randomized between direct PDS or additional diagnostic laparoscopy. Depending on the result of laparoscopy patients are treated by PDS within three weeks, followed by six courses of platinum based chemotherapy or with NACT and IDS 3-4 weeks after three courses of chemotherapy, followed by another three courses of chemotherapy. Primary outcome measure is the proportion of PDS's leaving more than one centimetre tumour residual in each arm. In total 200 patients will be randomized. Data will be analysed according to intention to treat.Discussion: Patients who have disease considered to be resectable to less than one centimetre should undergo PDS to improve prognosis. However, there is a need for better diagnostic procedures because the current number of debulking surgeries leaving more than one centimetre residual tumour is still high. Laparoscopy before starting treatment for ovarian cancer can be an additional diagnostic tool to predict the outcome of PDS. Despite the absence of strong evidence and despite the possible complications, laparoscopy is already implemented in many countries. We propose a randomized multicentre trial to provide evidence on the effectiveness of laparoscopy before primary surgery for advanced stage ovarian cancer patients.Trial registration: Netherlands Trial Register number NTR2644. © 2012 Rutten et al; BioMed Central Ltd. Source


Dekker R.R.,Isala Klinieken Zwolle | Dekker R.R.,University of Groningen | Schutte J.M.,Isala Klinieken Zwolle | Stekelenburg J.,Medical Center Leeuwarden | And 3 more authors.
European Journal of Obstetrics Gynecology and Reproductive Biology | Year: 2011

Objective: To assess maternal death and severe maternal morbidity from acute fatty liver of pregnancy (AFLP) in the Netherlands. Study design: A retrospective study of all cases of maternal mortality in the Netherlands between 1983 and 2006 and all cases of severe maternal morbidity in the Netherlands between 2004 and 2006, in which all 98 maternity units in the Netherlands participated. Maternal mortality ratio (MMR) and incidence of severe maternal morbidity were the main outcome measures. Results: The MMR from direct maternal mortality from AFLP was 0.13 per 100,000 live births (95% CI 0.05-0.29). The incidence of severe maternal morbidity from AFLP was 3.2 per 100,000 deliveries (95% CI 1.8-5.7). Conclusions: AFLP is a rare condition which still causes severe maternal morbidity and in some cases mortality. Referral to a tertiary care hospital for treatment of this uncommon disease should be considered. © 2011 Elsevier Ireland Ltd. Source


Van Rooijen J.M.,Martini Hospital | De Munck L.,Comprehensive Cancer Center the Netherlands | De Graaf J.C.,Isala Klinieken Zwolle | Siesling S.,Comprehensive Cancer Center the Netherlands | And 3 more authors.
European Journal of Cancer | Year: 2014

Background Accurate assessment of the human epidermal growth factor receptor 2 (HER2) in breast cancer is essential for proper treatment decisions. HER2 positivity confirmation rates in breast cancer trials by central testing pathology laboratories were reported to be approximately 85%. The aim of our study was to assess in a population based sample concordance of HER2 status in metastatic breast cancer (MBC) patients locally tested HER2 positive and treated with trastuzumab. Moreover cost-effectiveness of in situ hybridisation (ISH) in patients with an immunohistochemical score 3+ (IHC3+) was explored. Methods MBC patients treated between 2005 and 2009 with trastuzumab-based therapy in North East Netherlands were identified by a survey of hospital pharmacies. Primary tumour samples were retested centrally for HER2 status using 1 immunohistochemical (IHC) method and two methods using ISH on tissue micro-arrays. Potential discordant patients were retested on whole tumour slides. HER2 positivity was defined as: (1) ISH amplification (according to American Society of Clinical Oncology/College of American Pathologists (ASCO/CAP) clinical practice Guideline Update) and (2) when ISH failed an IHC score of 3+. Cost-effectiveness was estimated using potential ISH and treatment costs. Results HER2 status could be retested in 174 of 194 (90%) patients. The HER2 concordance rate was 87%. The 21 discordant patients were in the 67% due to primary HER2 testing with only IHC. Overall survival of HER2 discordant and concordant patients was not significantly different (18 versus 25 months, p = 0.131). Structural ISH in the case of IHC3+ has an estimated potential saving of €87,710 per 100 patients. Conclusion HER2 concordance in a population based study is comparable to those described in selected populations. Discordance is mostly due to testing with only IHC. ISH in the case of IHC3+ is cost-effective. © 2014 Published by Elsevier Ltd. Source


Kraaij-Dirkzwager M.,National Institute for Public Health and the Environment RIVM | Timen A.,National Institute for Public Health and the Environment RIVM | Dirksen K.,Public Health Service The Hague | Gelinck L.,Medical Center Haaglanden | And 10 more authors.
Eurosurveillance | Year: 2014

Two patients, returning to the Netherlands from pilgrimage in Medina and Mecca, Kingdom of Saudi Arabia, were diagnosed with Middle East respiratory syndrome coronavirus (MERS-CoV) infection in May 2014. The source and mode of transmission have not yet been determined. Hospital-acquired infection and community-acquired infection are both possible. Source

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