Regina Van Boekel - Academia.edu (original) (raw)

Papers by Regina Van Boekel

European Journal of Anaesthesiology

There is general agreement that acute pain management is an important component of perioperative ... more There is general agreement that acute pain management is an important component of perioperative medicine. However, there is no consensus on the best model of care for perioperative pain management, mainly because evidence is missing in many aspects. Comparing the similarities and differences between countries might reveal some insights into different organisational models and how they work. Here, we performed a narrative review to describe and compare the structures, processes and outcomes of perioperative pain management in the healthcare systems of four European countries using Donabedian's framework as a guide. Our comparison revealed many similarities, differences and gaps. Different structures of acute pain services in the four countries with no common definition and standards of care were found. Protocols have been implemented in all countries and guidelines in some. If outcome is assessed, it is mainly pain intensity, and many patients experiencing more intense pain than...

BACKGROUND Sex is an important factor in the development and treatment in chronic pain, but to wh... more BACKGROUND Sex is an important factor in the development and treatment in chronic pain, but to what extend is still unclear. Other demographic factors might influence pain sensitivity differently in men and women , as well as non-pharmacological interventions. OBJECTIVE In this study we aimed to investigate the influence of sex and other demographic, lifestyle, behavioral, clinical and environmental factors on pain sensitivity in the Dutch population. Different audiovisual stimuli were used to investigate how this would impact pain sensitivity, and what influence sex and these other variables have on the effect of this simple intervention. METHODS We performed a study consisting of two parts: a cross sectional research, to investigate pain sensitivity (PS) differences between men and women and the influence of demographic variables, in the Dutch population and an internet intervention study to determine whether an audiovisual intervention could skew pain sensitivity. RESULTS All res...

PLOS ONE, Feb 24, 2023

Background Prescription opioid use has increased steadily in many Western countries over the past... more Background Prescription opioid use has increased steadily in many Western countries over the past two decades, most notably in the US, Canada, and most European countries, including the Netherlands. Especially the increasing use of prescription opioids for chronic non-cancer pain has raised concerns. Most opioids in the Netherlands are prescribed in general practices. However, little is known about variation in opioid prescribing between general practices. To better understand this, we investigated practice variation in opioid prescribing for non-cancer pain between Dutch general practices. Methods Data from 2017-2019 of approximately 10% of all Dutch general practices was used. Each year included approximately 1000000 patients distributed over approximately 380 practices. The primary outcome was the proportion of patients with chronic (>90 days) high-dose (�90 oral morphine equivalents) opioid prescriptions. The secondary outcome was the proportion of patients with chronic (<90 oral morphine equivalents) opioid prescriptions. Practice variation was expressed as the ratio of the 95th/5th percentiles and the ratio of mean top 10/bottom 10. Funnel plots were used to identify outliers. Potential factors associated with unwarranted variation were investigated by comparing outliers on practice size, patient neighbourhood socioeconomic status, and urbanicity.

PLOS ONE, Jan 17, 2023

Pain is a prevalent and debilitating healthcare problem. Since pharmacological treatments have nu... more Pain is a prevalent and debilitating healthcare problem. Since pharmacological treatments have numerous side-effects, additional treatment could be beneficial. Music has been shown to affect the pain perception and the pain threshold. The objective of this observational study was to evaluate the effect of preferred music as opposed to disliked music on pain (tolerance) thresholds and perceived pain intensity in healthy volunteers. Pain thresholds were measured via quantitative sensory testing. The volunteers were randomly assigned to either handheld pressure algometry to assess the pressure pain threshold to or electrical measurements to assess the electrical pain tolerance threshold while listening to preferred and disliked music. The pain thresholds were administered on the dorsal side of the forearm. The perceived pain intensity was assessed via a numerical rating scale, ranging from 0 (no pain) to 10 (worst pain imaginable). In total 415 volunteers were included in this study. The pressure pain threshold was assessed in 277 volunteers and in the electrical pain tolerance threshold test 138 volunteers were entered. In both groups, preferred music yielded higher pain thresholds than disliked music (P<0.001) and lower perceived pain intensity during the stimulus (P = 0.003). Moreover, the highest pain thresholds of both pressure pain and electrical pain tolerance thresholds were obtained when the preferred music was preceded by disliked music. Listening to preferred music when receiving noxious stimuli leads to higher pain thresholds and lower perceived pain scores in comparison with disliked music. Preferred music could be beneficial for patients with pain or undergoing painful procedures.

BMJ Open

IntroductionPostoperative pain remains a challenging medical condition impacting the quality of l... more IntroductionPostoperative pain remains a challenging medical condition impacting the quality of life of every patient. Although several predictive factors for postoperative pain have been identified, an adequate prediction of postoperative pain in patients at risk has not been achieved yet.The primary objective of this study is to identify specific genetic risk factors for the development of acute and chronic postoperative pain to construct a prediction model facilitating a more personalised postoperative pain management for each individual. The secondary objectives are to build a databank enabling researchers to identify other risk factors for postoperative pain, for instance, demographic and clinical outcome indicators; provide insight into (genetic) factors that predict pharmacological pain relief; investigate the relationship between acute and chronic postoperative pain.Methods and analysisIn this prospective, observational study, patients who undergo elective surgery will be re...

Numbers and characteristics of patients.</p

PLOS ONE

Introduction Different multimodal pain management strategies following total hip arthroplasty(THA... more Introduction Different multimodal pain management strategies following total hip arthroplasty(THA) and total knee arthroplasty (TKA) surgery are used in clinical practice. The optimal pain management strategy, however, remains unclear. This study aims to evaluate the differences in perioperative multimodal pain management strategies for THA and TKA in the Netherlands, and studies the associations between patient- and therapy related factors and pain outcomes. Methods Data from the Dutch hospitals in the PAIN OUT network were used in this study. Demographic data, pain management strategy including perioperative medication use and anesthetic techniques were recorded and used in a multivariable regression analysis to study the association with maximum pain intensity, the duration of severe pain, pain interference in bed and postoperative nausea. Results In 343 hip arthroplasty patients and 301 knee arthroplasty patients in seven hospitals, respectively 28 and 35 different combinations ...

The pharmacological management of musculoskeletal pain starts with NSAIDs, followed by weak or st... more The pharmacological management of musculoskeletal pain starts with NSAIDs, followed by weak or strong opioids until the pain is under control. However, the treatment outcome is usually unsatisfying due to inter-individual differences. To investigate the genetic component of treatment outcome differences, we performed a genome-wide association study (GWAS) in ~ 23 000 participants with musculoskeletal pain from the UK Biobank. NSAID vs. opioid users was compared as a reflection of the treatment outcome of NSAIDs. We identified one genome-wide significant hit in chromosome 4 (rs549224715, P = 3.88×10− 8). Suggestive significant (P < 1×10 − 6) loci were mapped to 28 target genes, including eight genes linked to neuropathic pain processes or musculoskeletal development. Pathway and network analyses identified immunity-related processes and a (putative) central role of EGFR. However, this study lacked power and should be viewed as a first step to elucidate the genetic background of mu...

Name, abbreviation, values and coding of variables used in the logistic regression model... more Name, abbreviation, values and coding of variables used in the logistic regression models to estimate the relationships between four explanatory variables and each of three response variables.</p

Shown are the optimal cut-off points with their associated sensitivities and specificiti... more Shown are the optimal cut-off points with their associated sensitivities and specificities, as well as the areas under the ROC curves (AUC).</p

The dashed line is the line of identity where the AUC = 0.5. Open circles are the points... more The dashed line is the line of identity where the AUC = 0.5. Open circles are the points where Youden’s J-statistic is maximal for PONO. These points are, by definition, the ‘optimal’ cut-off points.</p

Pain Practice, 2014

Acute postoperative pain is still inadequately managed, despite the presence of acute pain servic... more Acute postoperative pain is still inadequately managed, despite the presence of acute pain services (APSs). This study aimed to investigate the existence, structure, and responsibilities of Dutch APSs and to review the implementation of the Dutch Hospital Patient Safety Program (DHPSP). Information was gathered by a digital questionnaire, sent to all 96 Dutch hospitals performing surgical procedures. Completed questionnaires were received from 80 hospitals (83%), of which 90% have an APS. Important duties of the APS are regular patient rounds, checking complex pain techniques (100%), supporting quality improvement of pain management (87%), pain education (100%), and pain research (21%). Regular in-hospital pain training is not provided in 46% of the hospitals. Thirteen percent of the hospitals offer no patient information about pain management. Almost all hospitals have an APS. They differ in both the way they are locally organized, along with the activities they employ. Future research needs to compare the effect of patient and nonpatient-related activities of APSs on outcomes related to pain management.

Drug treatment for nociceptive musculoskeletal pain (NMP) follows a three-step analgesic ladder p... more Drug treatment for nociceptive musculoskeletal pain (NMP) follows a three-step analgesic ladder proposed by the World Health Organization (WHO), starting from non-steroidal anti-inflammatory drugs (NSAIDs), followed by weak or strong opioids until the pain is under control. However, effective pain treatment is challenged by inter-individual differences, and unsatisfied pain treatment response (PTR) rates ranging from 34 to 79% in those suffering from NMP. To investigate the underlying genetic component of PTR, we performed a genome-wide association study (GWAS) in ∼ 23,000 participants with NMP from the UK Biobank. In our primary analysis, we compared NSAID vs. opioid users as a reflection of (non)response to NSAIDs, adjusting for age, sex, BMI, population substructure, and study-specific covariates. One genome-wide significant hit was identified in an intergenic region on chromosome 4, rs549224715 (P = 3.88×10−8), and seven signals pass the suggestively significant threshold (P &lt...

Pain Research and Management

An increased sensitivity to painful stimuli has been proposed to be related to the development of... more An increased sensitivity to painful stimuli has been proposed to be related to the development of chronic pain. Therefore, assessment of individual pain sensitivity is useful in clinical practice. However, experimental pain testing may be uncomfortable for patients and requires specific equipment. The Pain Sensitivity Questionnaire (PSQ) has been developed to facilitate assessment of pain sensitivity. In this study, we aimed to translate and cross-culturally adapt the PSQ from its published German and English versions into the Dutch language and to assess validity of the PSQ in healthy volunteers. After translation and cross-cultural adaptation of the PSQ following international guidelines, we validated the PSQ in 394 healthy volunteers by comparing the PSQ-values with two different experimental pain tests: electrical pain tolerance (EPT) and pressure pain threshold (PPT). In addition, ratings of pain intensity during these tests were obtained on the numerical rating scale (NRS, 0–1...

Scientific Reports

Identifying patients at risk is the start of adequate perioperative pain management. We aimed to ... more Identifying patients at risk is the start of adequate perioperative pain management. We aimed to identify preoperative predictors for acute postsurgical pain (APSP) and for pain at 3 months after surgery to develop prediction models. In a prospective observational study, we collected preoperative predictors and the movement-evoked numerical rating scale (NRS-MEP) of postoperative pain at day 1, 2, 3, 7, week 1, 6 and 3 months after surgery from patients with a range of surgical procedures. Regression analyses of data of 2258 surgical in- and outpatients showed that independent predictors for APSP using the mean NRS-MEP over the first three days after surgery were hospital admittance, female sex, higher preoperative pain, younger age, pain catastrophizing, anxiety, higher score on functional disability, highest categories of expected pain, medical specialty, unknown wound size, and wound size > 10 cm compared to wound size ≤ 10 cm (RMSE = 2.11). For pain at three months, the only ...

Anesthesiology

Background As the population ages, the number of elderly people undergoing surgery increases. Lit... more Background As the population ages, the number of elderly people undergoing surgery increases. Literature on the incidence and intensity of postoperative pain in the elderly is conflicting. This study examines associations between age and pain-related patient reported outcomes and perioperative pain management in a dataset of surgical patients undergoing four common surgeries: spinal surgery, hip or knee replacement, or laparoscopic cholecystectomy. Based on the authors’ clinical experience, they hypothesize that pain scores are lower in older patients. Methods In this retrospective cohort, study data were collected between 2010 and 2018 as part of the international PAIN OUT program. Patients filled out the International Pain Outcomes Questionnaire on postoperative day 1. Results A total of 11,510 patients from 26 countries, 59% female, with a mean age of 62 yr, underwent one of the aforementioned types of surgery. Large variation was detected within each age group for worst pain, ye...

Journal of Pain Research

Background: In Africa, postoperative pain management is still a major problem with a prevalence o... more Background: In Africa, postoperative pain management is still a major problem with a prevalence of postoperative pain in up to 95.2% of the patients. There are little data on the prevalence and potential risk factors for postoperative pain in Tanzania. Therefore, we aimed to investigate these at Kilimanjaro Christian Medical Centre in Northern Tanzania. Our goal is to optimize pain management. Methods: A prospective cohort study was carried out from December 2016 to April 2017. Patients ≥18 years admitted for elective general or orthopedic surgery were included in the study. Demographic data were collected during a pre-operative visit, and pain was assessed with a numerical rating scale (NRS 0-10) at 4, 24, 36 and 48 hours postoperatively. A NRS >3 was considered as moderate to severe postoperative pain. Potential risk factors for postoperative pain were identified using univariate and multivariable binary logistic regression analyses. Results: A total of 281 patients were included in the study. The prevalence of postoperative pain was 61%, 73%, 67% and 58% at 4, 24, 36 and 48 hours after surgery, respectively. Pethidine was the most frequently prescribed analgesic for postoperative pain management (85.1%) in the first 24 hours postoperatively; only 1% received paracetamol or diclofenac, and 13% received tramadol. In the multivariable model, general anesthesia and intra-operative analgesia (OR = 3.70, 95% CI 1.70-8.04) were significant risk factors for postoperative pain. Conclusion: Pain is still inadequately managed at Kilimanjaro Christian Medical Centre leading to a high prevalence (73% on the first day after surgery) of reported postoperative pain in this study. It reflects the need for adequate postoperative analgesia, especially in lowand middle-income countries. Further research identifying risk factors in larger cohorts can be performed if adequate analgesia is given.

Annals of surgery, Jan 13, 2017

The aim of this study was to establish the relationship between postoperative pain and 30-day pos... more The aim of this study was to establish the relationship between postoperative pain and 30-day postoperative complications. Only scarce data are available on the association between postoperative pain and a broad range of postoperative complications in a large heterogeneous surgical population. Having postoperative pain was assessed in 2 ways: the movement-evoked pain score on the Numerical Rating Scale (NRS-MEP) and the patients' opinion whether the pain was acceptable or not. Outcome was the presence of a complication within 30 days after surgery. We used binary logistic regression for the total population and homogeneous subgroups to control for case complexity. Results for homogeneous subgroups were summarized in a meta-analysis using inverse variance weighting. In 1014 patients, 55% experienced moderate-to-severe pain on the first postoperative day. The overall complication rate was 34%. The proportion of patients experiencing postoperative complications increased from 0.25 ...

PloS one, 2017

Clinical experience teaches us that patients are willing to accept postoperative pain, despite hi... more Clinical experience teaches us that patients are willing to accept postoperative pain, despite high pain intensity scores. Nevertheless, relationships between pain scores and other methods of pain assessment, e.g. acceptability of pain or its interference with physical functioning, are not fully established. Our aims were to examine these relationships. A cross-sectional study was conducted on patients who underwent major surgery between January 2008 and August 2013. Using logistic regression, we quantified the relationships between movement-evoked pain scores on the numerical rating scale (NRS-MEP) and three dichotomous dependent variables: patient's opinion on acceptability of pain (PO: acceptable or unacceptable pain); nurses' observation of patient's performance of necessary activities to expedite recovery (NO: good or bad performance); a compound measure judging the presence of the clinically desirable situation of acceptable pain associated with good patients' ...