Publications by authors named "Petra Koopmans"

Background: Novel mRNA-based vaccines have been used to protect against SARS-CoV-2, especially in vulnerable populations who also receive an annual influenza vaccination. The TACTIC study investigated potential immune interference between the mRNA COVID-19 booster vaccine and the quadrivalent influenza vaccine, and determined if concurrent administration would have effects on safety or immunogenicity.

Methods: TACTIC was a single-blind, placebo-controlled randomized clinical trial conducted at the Radboud University Medical Centre, the Netherlands.

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Purpose: To investigate the safety and efficacy of nivolumab plus cabozantinib with or without ipilimumab in patients with advanced hepatocellular carcinoma.

Methods: In cohort 6 of the multicohort, open-label, phase I/II CheckMate 040 study, patients who were treatment-naive, sorafenib-intolerant, or had progressed on sorafenib were randomly assigned 1:1 to nivolumab 240 mg once every 2 weeks plus cabozantinib 40 mg once daily (doublet arm); or nivolumab 3 mg/kg every 2 weeks plus cabozantinib 40 mg once daily with ipilimumab 1 mg/kg once every 6 weeks (triplet arm). Primary objectives were safety and tolerability, objective response rate, and duration of response by investigator assessment per RECIST v1.

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Introduction: Skin revitalizers are used for skin quality improvement purposes. Hyaluronan hybrid cooperative complexes (HCC, Profhilo®, IBSA Pharmaceuticals) are an anti-aging treatment with a large amount of pure hyaluronic acid (HA) based on stable, cooperative, and hybrid complexes. Cohesive polydensified matrix Hyaluronic Acid (CPM-HA20, Belotero Revive®, Merz Pharmaceuticals GmbH) is a slightly cross-linked HA (20 mg/ml) with glycerol (17.

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Introduction: Alignment goals in total knee replacement (TKR) is a topical subject. This study compares the short-term functional outcomes and patient reported outcome measures (PROMs) of two philosophies for knee arthroplasty alignment: measured resection (MR) and an individualised alignment philosophy, with the tibia mechanically aligned and an instrumented gap balancer (GB) to align the femur in both flexion and extension.

Patients And Methods: 94 knees were enrolled in this randomised controlled trial.

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Background: patients with a subarachnoid hemorrhage (SAH) might need a flow diverter (FD) placement for complex acutely ruptured intracranial aneurysms (IAs). We conducted a meta-analysis and developed a prediction model to estimate the favorable clinical outcome after the FD treatment in acutely ruptured IAs.

Methods: a systematic literature search was performed from 2010 to January 2021 in PubMed and Embase databases.

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Background: N-terminal fragment of the brain natriuretic peptide prohormone (NT-proBNP), a marker for neurohumoral activation, has been associated with adverse outcome in patients with myocardial infarction. NT-proBNP levels may reflect extensive ischemia and microvascular damage, therefore we investigated the potential association between baseline NT-proBNP level and ST-resolution (STR), a marker of myocardial reperfusion, after primary percutaneous coronary intervention (pPCI).

Methods: we performed a post-hoc analysis of the On-TIME II trial (which randomized ST-elevation myocardial infarction (STEMI) patients to pre-hospital tirofiban administration vs placebo).

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Background: The diagnosis of prosthetic joint infection (PJI) is challenging because no single test has consistently demonstrated an adequate discriminative potential. The combination of erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) with adequate thresholds is well established. This study sought to investigate the role of plasma viscosity (PV) in the diagnosis of PJI following painful total knee arthroplasty.

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Background: Long-term clinical outcome is less well known in up to presentation persons unknown with diabetes mellitus who present with acute myocardial infarction and elevated glycosylated haemoglobin (HbA1c) levels on admission. We aimed to study the prognostic impact of deranged HbA1c at presentation on long-term mortality in patients not known with diabetes, presenting with acute myocardial infarction.

Methods: A single-centre, large, prospective observational study in patients with and without known diabetes admitted to our hospital for ST-segment elevation myocardial infarction (STEMI) and non-STEMI.

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Objectives: To investigate the potential association between early tirofiban treatment and N-terminal pro-B-type natriuretic peptide (NT-proBNP) level after primary percutaneous coronary intervention (PCI).

Background: Whether the use of adjunctive early glycoprotein IIb/IIIa inhibitors (GPIs) therapy, may affect the level of NT-proBNP after primary PCI is poorly studied.

Methods: Nine hundred and eighty four ST-elevation myocardial infarction (STEMI) patients undergoing primary PCI were randomized to either pre-hospital tirofiban administration or placebo.

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Statement Of Problem: Long-term assessments of implant survival and treatment outcome in patients with oligodontia are lacking.

Purpose: The purpose of this retrospective clinical study was to assess which factors determine a long-term implant survival and treatment outcome of up to 25 years in a cohort of patients with oligodontia.

Material And Methods: The medical records of all patients with oligodontia treated with fixed implant prosthodontics between January 1991 and December 2015 in the Department of Oral and Maxillofacial Surgery at the University Medical Center Groningen, the Netherlands, were assessed.

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Objective: To explore the predictors of deferred lesion failure (DLF) in patients with diabetes mellitus (DM) and lesions with a fractional flow reserve (FFR) >0.80 and to examine whether a predictive relationship between negative FFR values (>0.80-1.

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Objective: The superiority of drug-eluting stents (DES) over bare-metal stents (BMS) in patients with ST elevation myocardial infarction (STEMI) is well studied; however, randomised data in patients with non-ST elevation myocardial infarction (NSTEMI) are lacking. The objective of this study was to investigate whether stenting with everolimus-eluting stents (EES) safely reduces restenosis in patients with NSTEMI as compared to BMS.

Methods: ELISA-3 patients were asked to participate in the angiographic substudy and were randomised to DE (Xience V) or BM (Vision) stenting (ELISA-3 group).

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To assess the safety and efficacy of deferred versus complete revascularization using a fractional flow reserve (FFR)-guided strategy in patients with diabetes mellitus (DM), we analyzed all DM patients who underwent FFR-guided revascularization from January 1, 2010, to December 12, 2013. Patients were divided into 2 groups: those with ≥1 remaining FFR-negative (>0.80) medically treated lesions [FFR(-)MT] and those with only FFR-positive lesions (≤0.

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Objective: Deferred revascularisation based upon fractional flow reserve (FFR >0.80) is associated with a low incidence of target lesion failure (TLF). Whether deferred revascularisation is also as safe in diabetes mellitus (DM) patients is unknown.

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It was the purpose of this study to assess the effect of thrombus aspiration (TA) during primary percutaneous coronary intervention (PPCI) on reperfusion and clinical outcome in a real-world STEMI population. The decision to use TA (Export catheter, Medtronic) was at the discretion of the treating cardiologist. The primary endpoint was mortality at short (in-hospital) and long term (one year) follow-up.

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Background: The participation of neurologists and patients in studies on the effectiveness and safety of newly authorized drugs in multiple sclerosis (MS) is insufficient. Monthly online self-assessments using patient-reported outcomes may help in short-term monitoring of neurological changes and side effects.

Objective: Investigate in relapsing-remitting (RR) MS patients the adherence to monthly online self-assessments after the start of disease modifying treatment.

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Purpose: To investigate whether there is an association between use of antibiotics and breakthrough pregnancy.

Methods: The study was performed in a population-based prescription database (IADB.nl).

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Aims: To evaluate the impact of longer duration of pre-hospital initiated antiplatelet and antithrombotic therapy on outcome in patients with ST-segment elevation myocardial infarction (STEMI).

Methods And Results: In this sub-analysis of the Ongoing Tirofiban in Myocardial Evaluation (On-TIME) 2 trial, we studied, in 1,370 patients, the effect of pre-treatment time (time from administering study medication to time of angiography) on complete ST-segment resolution (STR), initial patency and 30-day mortality. Study medication consisted of high dose tirofiban (HDT) or control (placebo or no HDT) on top of high dose clopidogrel, aspirin and unfractionated heparin.

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Objective: This study investigated whether short episodes of sickness absence were associated with job satisfaction.

Participants: 199 wage earners who reported sick due to the common cold between January 2003 and April 2003.

Methods: Job satisfaction was assessed on the first day of sickness absence and associated with the duration of sickness absence using a multiple logistic regression model to which demographics, working conditions, and the week day on which sick-leave was taken were stepwise added as covariates.

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Background: It is known that the efficacy of thrombolytic therapy in ST-segment elevation myocardial infarction (STEMI) is highly time dependent with the best efficacy when given within the so-called golden hour. This analysis from the On-TIME 2 trial evaluated the efficacy of triple antiplatelet therapy on initial patency and ST-segment resolution (STR) in relation to time from symptom onset to first medical contact.

Methods: The On-TIME 2 trial included 1,398 consecutive STEMI patients referred for primary percutaneous coronary intervention (PCI).

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Background: The two primary objectives of this study were to the assess consultation load of occupational health physicians (OHPs), and their difficulties and needs with regard to their sickness certification tasks in sick-listed employees with severe medical unexplained physical symptoms (MUPS). Third objective was to determine which disease-, patient-, doctor- and practice-related factors are associated with the difficulties and needs of the OHPs.

Methods: In this cross-sectional study, 43 participating OHPs from 5 group practices assessed 489 sick-listed employees with and without severe MUPS.

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Objective: The Dutch population is healthy in terms of living and working conditions, but the levels of subjective health complaints (SHC) and sickness absence are high in the Dutch workforce. Are SHC related to sickness absence?

Participants: The study population included the personnel of four companies: a library (n= 185), an administrative office (n=114), a cheese factory (n=201) and a company producing metal constructions (n=65).

Methods: The employees received the Basic Occupational Health Questionnaire including 22 common SHC.

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Objective: Cancer survival has improved in recent years, but data on return to work (RTW) after cancer are sparsely published. Therefore, this study analysed RTW after cancer.

Methods: Employees diagnosed with breast cancer, genital cancer, gastro-intestinal cancer, lung cancer, skin cancer, or blood malignancies were selected from an occupational health register.

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Background: Common mental disorders (CMDs) are an important cause of sickness absence and long-term work disability. Although CMDs are known to have high recurrence rates, little is known about the recurrence of sickness absence due to CMDs. The aim of this study was to investigate the recurrence of sickness absence due to CMDs, including distress, adjustment disorders, depressive disorders and anxiety disorders, according to age, in male and female employees in the Netherlands.

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