Wim Henri Janssens

Dr. Wim Henri Janssens

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Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

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

Representative Publications

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20 April 2021 in European Geriatric Medicine
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WJWim Henri Janssens
Wim Henri Janssens
NNNele J. Van Den Noortgate
Nele J. Van Den Noortgate
RPRuth D. Piers
Ruth D. Piers

31 January 2024 in Annals of Medicine
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WJWim Henri Janssens
Wim Henri Janssens
NNNele J. Van Den Noortgate
Nele J. Van Den Noortgate
VMVeerle Mouton
Veerle Mouton
PDPeter Desmet
Peter Desmet
KPKatrien Van Puyvelde
Katrien Van Puyvelde
RPRuth D. Piers
Ruth D. Piers
Introduction: Adverse effects of opioids are common among older individuals, and undertreatment as well as overuse can be an issue. Epidemiological data on opioid use in older individuals are available, but scarce in hospitalized patients.Aims: The aim of this study is to examine the one-day prevalence of opioid use among older inpatients and identify the factors associated with both opioid use and dosage.Materials and methods: One-day cross-sectional study with data collected from geriatric units across 14 Belgian hospitals. The primary focus of the study is to assess the prevalence of opioid use and dosage, along with identifying associated factors. To achieve this, a multiple binary logistic regression model was fitted for opioid use, and a multiple linear regression model for opioid dose.Results: Opioids were used in 24.4% of 784 patients, of which 57.9% was treated with tramadol, 13.2% with oxycodone or morphine and 28.9% with transdermal buprenorphine or fentanyl. The odds for opioid use were 4.2 times higher in patients in orthogeriatric units compared to other patients (OR=4.2, 95% CI=2.50-7.05). The prevalence of opioid use was 34% higher in patients without dementia compared to patients with dementia (OR=0.66, 95% CI=0.46-0.95). The overall mean daily dosage was 14.07mg subcutaneous morphine equivalent. After adjustment for age, gender and dementia, dosage was only associated with type of opioid: the estimated mean opioid dose was 70% lower with tramadol (mean ratio=0,30,95% CI=0,23-0,39) and 67% lower with oxycodone and morphine (mean ratio=0,33, 95% CI=0,22-0,48) compared to transdermal buprenorphine and transdermal fentanyl.Conclusions: One in four patients received opioid treatment. It is not clear whether this reflects under- or overtreatment, but these results can serve as a benchmark for geriatric units to guide future pain management practices. The utilization of transdermal fentanyl and buprenorphine, resulting in higher doses of morphine equivalent, poses significant risks for side effects.

30 December 2015 in Journal of the Belgian Society of Radiology
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PVPhilip Vlummens
Philip Vlummens
BHBrecht Houthoofd
Brecht Houthoofd
WJWim Henri Janssens
Wim Henri Janssens
We report a case of an arteria lusoria causing swallowing difficulties known as dysphagia lusoria. Although the presence of an arteria lusoria is quite common, dysphagia lusoria is relatively rare. Interestingly, our patient also presented with a concurrent aneurysmal dilatation, known as a Kommerell's diverticulum, at the aortic origin. Complete thrombosis of the artery and flow reversal in the right cervical artery resulting in an asymptomatic subclavian steal syndrome was also seen. No underlying primary pro-thrombotic defects were identified but due to the presence of locally advanced prostate cancer, a paraneoplastic phenomenon was suspected.

5 April 2024 in Geriatrics
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WJWim Henri Janssens
Wim Henri Janssens
PVPauwelijn Verhoestraete
Pauwelijn Verhoestraete
RPRuth Piers
Ruth Piers
NNNele J. Van Den Noortgate
Nele J. Van Den Noortgate
Introduction: We conducted a head-to-head comparison of step 2 (tramadol) and step 3 (oxycodone) of the WHO pain ladder in older adults with moderate to severe acute locomotor pain. Materials and methods: Multi-center prospective randomized study. Patients were 70 years or older, admitted to the acute geriatric ward of three hospitals, suffering from acute moderate to severe locomotor pain, and opioid-naive. Patients were randomized into two treatment groups: tramadol versus oxycodone. The Consort reporting guidelines were used. Results: Forty-nine patients were included. Mean numeric rating scale (NRS) decreased significantly between day 0 and 2 of the inclusion in both groups. A sustained significant decrease in mean NRS was seen at day 7 in both groups. Nausea was significantly more prevalent in the tramadol group, with a trend towards a higher prevalence of delirium and falls and three serious adverse events in the same group. Conclusions: Opioid therapy may be considered as a short-term effective treatment for moderate to severe acute locomotor pain in older adults. Oxycodone may possibly be preferred for safety reasons. These results can have implications for geriatric practice, showing that opioids for treatment of acute moderate to severe locomotor pain in older patients are effective and safe if carefully monitored for side effects. Opioid therapy may be considered as a short-term treatment for moderate to severe acute locomotor pain in older adults, if carefully monitored for (side) effects, while oxycodone may possibly be preferred for safety reasons. These results can have implications for daily practice in geriatric, orthopedic, and orthogeriatric wards, as well as in terminal care, more precisely for the treatment of moderate to severe acute locomotor pain in older adults.

4 March 2022 in Zeitschrift für Gerontologie und Geriatrie
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WJWim Henri Janssens
Wim Henri Janssens
NNNele J. Van Den Noortgate
Nele J. Van Den Noortgate
RPRuth D. Piers
Ruth D. Piers

30 July 2026 in European Geriatric Medicine
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TBTim Biesbrouck
Tim Biesbrouck
MLMaïté Leleu
Maïté Leleu
MDMargaux Delporte
Margaux Delporte
WJWim Henri Janssens
Wim Henri Janssens
JFJohan Flamaing
Johan Flamaing
MRMaaike De Roo
Maaike De Roo