Rene Wijnen

Prof. Dr. Rene Wijnen


Research Focus & Metrics

Academic Career Length

35Years (1992-Present)

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

Representative Publications

View All Publications
11 September 2017 in JMIR Research Protocols
Verified
Journal Article
Open access
RERobin Eijlers
Robin Eijlers
JLJeroen S Legerstee
Jeroen S Legerstee
BDBram Dierckx
Bram Dierckx
LSLonneke M Staals
Lonneke M Staals
JBJohan Berghmans
Johan Berghmans
EUElisabeth M.W.J. Utens
Elisabeth M.W.J. Utens
Preoperative anxiety in children is highly prevalent and is associated with adverse outcomes. Existing psychosocial interventions to reduce preoperative anxiety are often aimed at distraction and are of limited efficacy. Gradual exposure is a far more effective way to reduce anxiety. Virtual reality (VR) provides a unique opportunity to gradually expose children to all aspects of the operating theater. The aims of our study are (1) to develop a virtual reality exposure (VRE) tool to prepare children psychologically for surgery; and (2) to examine the efficacy of the VRE tool in a randomized controlled trial (RCT), in which VRE will be compared to care as usual (CAU). The VRE tool is highly realistic and resembles the operating room environment accurately. With this tool, children will not only be able to explore the operating room environment, but also get accustomed to general anesthesia procedures. The PREoperative Virtual reality Intervention to Enhance Wellbeing (PREVIEW) study will be conducted. In this single-blinded RCT, 200 consecutive patients (aged 4 to 12 years) undergoing elective day care surgery for dental, oral, or ear-nose-throat problems, will be randomly allocated to the preoperative VRE intervention or CAU. The primary outcome is change in child state anxiety level between baseline and induction of anesthesia. Secondary outcome measures include child's postoperative anxiety, emergence delirium, postoperative pain, use of analgesics, health care use, and pre- and postoperative parental anxiety. The VRE tool has been developed. Participant recruitment began March 2017 and is expected to be completed by September 2018. To our knowledge, this is the first RCT evaluating the effect of a VRE tool to prepare children for surgery. The VRE intervention is expected to significantly diminish preoperative anxiety, postoperative pain, and the use of postoperative analgesics in pediatric patients. The tool could create a less stressful experience for both children and their parents, in line with the modern emphasis on patient- and family-centered care. Netherlands Trial Registry: NTR6116; http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=6116 (Archived by WebCite at http://www.webcitation.org/6ryke7aep).

1 April 2016 in Best Practice & Research Clinical Gastroenterology
Verified
Journal Article
Closed access
ENE.G. Neelis
E.G. Neelis
JOJoanne F Olieman
Joanne F Olieman
JHJ.M. Hulst
J.M. Hulst
BKB.A.E. de Koning
B.A.E. de Koning
RWRene Wijnen
Rene Wijnen
EREdmond Rings
Edmond Rings

7 November 2017 in Respiratory Research
Verified
Journal Article
Open access
PDF file
DMDaphne S. Mous
Daphne S. Mous
MBMarjon #3 Buscop
Marjon #3 Buscop
RWRene Wijnen
Rene Wijnen
Dick TibboelDick Tibboel
Dick Tibboel
RRRobbert Rottier
Robbert Rottier
Patients with congenital diaphragmatic hernia (CDH) have structural and functional different pulmonary vessels, leading to pulmonary hypertension. They often fail to respond to standard vasodilator therapy targeting the major vasoactive pathways, causing a high morbidity and mortality. We analyzed whether the expression of crucial members of these vasoactive pathways could explain the lack of responsiveness to therapy in CDH patients. The expression of direct targets of current vasodilator therapy in the endothelin and prostacyclin pathway was analyzed in human lung specimens of control and CDH patients. CDH lungs showed increased expression of both ETA and ETB endothelin receptors and the rate-limiting Endothelin Converting Enzyme (ECE-1), and a decreased expression of the prostaglandin-I2 receptor (PTGIR). These data were supported by increased expression of both endothelin receptors and ECE-1, endothelial nitric oxide synthase and PTGIR in the well-established nitrofen-CDH rodent model. Together, these data demonstrate aberrant expression of targeted receptors in the endothelin and prostacyclin pathway in CDH already early during development. The analysis of this unique patient material may explain why a significant number of patients do not respond to vasodilator therapy. This knowledge could have important implications for the choice of drugs and the design of future clinical trials internationally.

1 November 2019 in Journal of Pediatric Gastroenterology and Nutrition
Verified
Journal Article
Open access
FVFloor W.T. Vergouwe
Floor W.T. Vergouwe
MWMichiel P. van Wijk
Michiel P. van Wijk
MSManon C.W. Spaander
Manon C.W. Spaander
Marco BrunoMarco Bruno
Marco Bruno
RWRene Wijnen
Rene Wijnen
HIHanneke IJsselstijn
Hanneke IJsselstijn
Objectives: The aim of the study was to evaluate acid and nonacid gastroesophageal reflux in infants and school‐aged children with esophageal atresia (EA) using pH‐impedance (pH‐MII) monitoring.Methods: Between 2012 and 2017, all 24‐hour pH‐MII studies performed in infants (⩽18 months) and 8‐year olds with EA were included. Antiacid therapy was discontinued before study. Exclusion criteria were: isolated tracheoesophageal fistula; esophageal replacement therapy; tube feeding; and monitoring <18 hours. Automatically detected retrograde bolus movements (RBM) were manually reviewed and modified/deleted if necessary.Results: We included 57 children (51% boys; 2% isolated EA; 44% thoracoscopic EA repair): 24 infants (median age 0.6 years) and 33 school‐aged children (median age 8.2 years). Of the automatically detected 3313 RBM, 1292 were manually deleted from the tracings: 52% of nonacid RBM and 8% of acid RBM (mainly misinterpreted swallows or 1 event recognized as several events). In infants, median reflux index (RI; pH <4) was 2.6% (abnormal in n = 2), median RBM was 61 (62% nonacid, 58% mixed), and median of the mean BCT was 11 seconds. In older children, median RI was 0.3% (abnormal in n = 4), median RBM was 21 (64% nonacid; 75% mixed), and median of the mean BCT was 13 seconds.Conclusions: Most children with EA off medication have a normal RI, yet experience a significant number of nonacid RBM. After manual revision of the tracings, a high percentage of RBM was deleted. Our data show that automated impedance analysis software needs refinement for use in infants and children with EA and question the need for standard antiacid therapy in these patients.

9 September 2021 in Journal of Pediatric Gastroenterology and Nutrition
Verified
Journal Article
Open access
CKChantal A. ten Kate
Chantal A. ten Kate
ARAndré Bernard Rietman
André Bernard Rietman
YWYannick van de Wijngaert
Yannick van de Wijngaert
AGAnnabel van Gils‐Frijters
Annabel van Gils‐Frijters
SGSaskia J. Gischler
Saskia J. Gischler
HIHanneke IJsselstijn
Hanneke IJsselstijn
Objectives: To longitudinally evaluate self‐reported and proxy‐reported health status (HS) and quality of life (QoL) of school‐aged children born with esophageal atresia (EA).Methods: We obtained Pediatric Quality of Life Inventory (HS) and DUX‐25 (QoL) questionnaires from children born with EA between 1999 and 2011 at 8 and/or 12 years old. Children completed self‐reports during neuropsychological assessments in a prospective longitudinal follow‐up program. Parents filled out proxy‐reports at home. Total and subscale scores were evaluated longitudinally and compared with sex‐specific reference norms.Results: In total, 110 participants (62% boys) were included. Self‐reported HS improved significantly between 8 and 12 years for both boys (mean difference [md] 4.35, effect size [ES] 0.54, P = 0.009) and girls (md 3.26, ES 0.63, P = 0.004). Proxy‐reported HS tended to improve over time, while self‐reported and proxy‐reported QoL tended to decline. Self‐reported HS at 8 years was below normal for both boys (md −5.44, ES −0.35, P < 0.001) and girls (md −7.61, ES −0.32, P < 0.001). Girls’ self‐reported QoL was below normal at 8 (md −5.00, ES −0.18, P = 0.019) and 12 years (md −10.50, ES −0.26, P = 0.001). Parents reported normal HS at both ages, whereas they rated the QoL of their daughters below normal at 12 years (md −10.00, ES −0.16, P = 0.022). All above results are total scores.Conclusions: Self‐reported and proxy‐reported HS of children with EA improved between 8 and 12 years, while their QoL tended to decline. We recommend to consider HS and QoL as two separate concepts and to measure both simultaneously and longitudinally when evaluating the burden of disease.

19 July 2019 in European Journal of Pediatrics
Verified
Journal Article
Open access
PDF file
AHAnnelieke Hijkoop
Annelieke Hijkoop
ARAndré Bernard Rietman
André Bernard Rietman
RWRene Wijnen
Rene Wijnen
Dick TibboelDick Tibboel
Dick Tibboel
TCTitia E. Cohen-Overbeek
Titia E. Cohen-Overbeek
HIHanneke IJsselstijn
Hanneke IJsselstijn
Children with gastroschisis are at high risk of morbidity in early life, which could affect long-term outcomes. We determined parent-reported outcomes in school-aged children born in 2000–2012, using paper questionnaires. Parent-perceived child vulnerability and motor function were compared with the Dutch reference data; parent-rated data on cognition, health status, quality of life, and behavior were compared with those of controls matched for age, gender, and maternal education level. Of 77 eligible participants, 31 (40%) returned the questionnaires. Parent-reported motor function was normal in 23 (74%) children. Total scores on health status, quality of life, and behavior did not differ significantly from those of matched controls. Children with gastroschisis had lower scores on cognition (median (interquartile range); 109 (87–127)) than their matched controls (124 (113–140); p = 0.04). Neonatal intestinal failure and increased parent-perceived vulnerability were associated with lower scores on cognition (β − 25.66 (95% confidence interval − 49.41, − 1.91); − 2.76 (− 5.27, − 0.25), respectively). Conclusion: Parent-reported outcomes of school-aged children with gastroschisis were mainly reassuring. Clinicians and parents should be aware of the higher risk of cognitive problems, especially in those with neonatal intestinal failure or increased parent-perceived vulnerability. We recommend multidisciplinary follow-up at school age of children with gastroschisis and neonatal intestinal failure. What is Known: • Many infants with gastroschisis experience morbidity in early life. • Data on developmental outcomes and daily functioning in children with gastroschisis beyond the age of 5 years are scarce and conflicting. What is New: • Parents of school-aged children treated for gastroschisis report normal motor function, health status, quality of life, and behavior. • Children with gastroschisis, especially those with intestinal failure, may be at risk for cognitive problems at school age. Parents who reported their child as being more vulnerable also reported more cognitive problems at school age.