Use of primary health care services among older patients with and without diabetes

Background

The aim of this study was to compare the utilization of primary healthcare services by older patients with and without type 2 diabetes.

Methods

Electronic patient records were used to identify persons over 65 years of age with a diagnosis of diabetes. Two age- and sex-adjusted controls without diabetes were extracted for each person with diagnosis of diabetes. A health questionnaire was sent by mail to 527 people with diabetes and 890 controls. Of the persons who answered the questionnaire, 518 persons were randomly selected to participate in a health examination. The study group in this analysis consisted of 187 persons with diabetes and 176 persons without diabetes who attended the health examination. The data on primary health care utilization were extracted from electronic patient records one year before and one after the health examination.

Results

Before the onset of the study, the patients with diabetes had more doctor’s appointments (p < 0.001), nurse’s appointments (< 0.001) and laboratory tests taken (p < 0.001) than those without diabetes After 1-year follow-up period the patients with diabetes had more doctor’s appointments (p = 0.002), nurse’s appointments (p = 0.006), laboratory tests taken (p = 0.006) and inpatient care at the community hospital (p = 0.004) than patients without a diagnosis of type 2 diabetes. The use of the community hospital increased significantly among patients with diabetes (ratio 2.50; 95% Cl 1.16–5.36) but not by patients without diabetes (ratio 0.91; 95% Cl 0.40.2.06). The number of nurse’s appointments increased for patients without diabetes (ratio 1.31; 95% Cl 1.07–1.60) but not for those with diabetes (ratio 1.04; 95% Cl 0.88–1.24).

Conclusions

Patients with diabetes visit more often physicians and nurses compared with those without diabetes. During a 1-year follow-up, the use of community hospital care increased significantly among patients with diabetes. In addition to focusing on prevention and care of diabetes, these results suggest the importance of diabetes in planning community-based health care services.

Headache and quality of life in Finnish female municipal employees

OBJECTIVES

Migraine and other specific types of chronic headache impair health-related quality of life (HRQoL). However, undefined headache is common in general population and little is known about its impact on QoL. This study addresses the impact of undefined headache symptoms on quality of life in a population of working-age females.

METHODS

This cross-sectional study consisted of 633 female municipal employees. Self-reported headache recurrence was defined by asking whether headache was occasional or recurrent. We assessed quality of life with two different instruments, the generic EUROHIS-QOL 8-item index (EUROHIS-8) and the preference-based instrument EuroQoL (EQ-5D) representing health-related QoL. Anxiety, depressive symptoms and work stress were measured using validated questionnaires. Adjusted hypothesis of linearity was evaluated using bootstrap type analysis of covariance with age, education and number of comorbidities as covariates.

RESULTS

In the study population, 76% (n=481) had experienced headache during the past year, and of those 38% (n=184) had recurrent headache. The EQ-5D index decreased linearly with increasing headache symptoms and four out of five EQ-5D dimensions were lowest in recurrent headache group. Females with headache had lower QoL on every EUROHIS-8 item except for conditions of living place, compared to females without headache. These results remained statistically significant after adjustment with age, education and number of comorbidities. There were no differences in prevalence of musculoskeletal disorders between study groups.

CONCLUSIONS

This cross-sectional, observational study showed that self-reported recurrent headache is common among Finnish women belonging to active work force. Both health-related and general QoL is best in females without headache and lowest in the recurrent headache group. We conclude that recurrent headache, even when the subjects have low anxiety and depressive symptoms scores, is associated with low HRQoL in working-age females. These results underline the importance of headache, a common and neglected symptom deteriorating female employees' wellbeing.

Association of sensory phenotype with quality of life, functionality, and emotional well-being in patients suffering from neuropathic pain

ABSTRACT

Neuropathic pain highly affects quality of life, well-being, and function. It has recently been shown based on cluster analysis studies that most patients with neuropathic pain may be categorized into 1 of 3 sensory phenotypes: sensory loss, mechanical hyperalgesia, and thermal hyperalgesia. If these phenotypes reflect underlying pathophysiological mechanisms, they may be more relevant for patient management than underlying neurological diagnosis or pain intensity. The aim of this study was thus to examine the impact of these sensory phenotypes on mental health, functionality, and quality of life. Data of 433 patients from the IMI/EuroPain network database were analyzed, and results of HADS-D/A, Pain Catastrophizing Scale, Euro Quality of Life 5D/-VAS, Brief Pain Inventory, and Graded Chronic Pain Scale between the sensory phenotypes were compared using multiple regression analysis. There was no difference in chronic pain grade, pain intensity, depression, or anxiety scores between phenotypes. Pain interference (Brief Pain Inventory) was higher (P = 0.002); self-reported health state lower (Euro Quality of Life 5D VAS, P = 0.02); and problems regarding mobility (P = 0.008), usual activities (P = 0.004), and self-care (P = 0.039) more prominent (EQ5-D) in the sensory loss compared with the thermal hyperalgesia phenotype. Patients with sensory loss also showed higher pain catastrophizing scores (P = 0.006 and 0.022, respectively) compared with the 2 other groups. Sensory phenotype is associated with the impact of neuropathic pain conditions on well-being, daily functionality, and quality of life but is less associated with pain intensity. These results suggest that the somatosensory phenotype should be considered for personalized pain management.

Work incapacity among family caregivers: a record linkage study

Background

Family caregiving-related physical and mental health problems may lead to work incapacity in employed caregivers. The aim of this study was to quantify sickness absences and disability pensions (SADP) among high-intensity family caregivers available to the labour market compared with a control population.

Methods

The study sample included all individuals in Finland, who had received caregiver’s allowance and were available to the labour market in 2012 (n=16 982) and their controls (n=35 371). Information on the number of sickness absence (spells >10 days) and disability pension (SADP) days and related diagnoses according to ICD-10 were obtained from national registers for the years 2012–2017. The analyses were adjusted for age, sex, occupational status, education, income and degree of urbanisation.

Results

During the follow-up, 40.9% of caregivers and 39.5% of controls had at least one sickness absence spell and 6.1% and 4.7%, respectively, received disability pension. The mean annual number of SADP days was 23.2 (95% CI 22.3 to 24.1) for caregivers and 18.5 (95% CI 18.0 to 19.0) for controls (adjusted incidence rate ratio (IRR)=1.16, 95% CI 1.10 to 1.22). The number of annual SADP days due to mental disorders was higher in caregivers (7.2, 95% CI 6.7 to 7.8) than controls (4.0, 95% CI 3.8 to 4.3; adjusted IRR 1.58, 95% CI 1.42 to 1.75). There were no differences in SADP days due to cancer, neurological, cardiovascular, respiratory, or musculoskeletal diseases, or external causes.

Discussion

Higher number of SADP days due to mental disorders in caregivers suggests that family caregiving has an adverse effect on work capacity and that caregivers are at increased risk for mental disorders.

Glucose regulation and pain in older people-The Helsinki Birth Cohort Study

AIMS

To assess if individuals with diabetes or prediabetes report more pain or have increased use of pain medication compared to normoglycaemic individuals.

METHODS

Using cross-sectional data, we studied 928 men and 1075 women from the Helsinki Birth Cohort Study in 2001-2004 at a mean age of 61.5 years. Glucose regulation was assessed with a 2-h 75 g oral glucose tolerance test, and applying World Health Organization criteria, participants were defined as having normoglycaemia, prediabetes (impaired fasting glucose or impaired glucose tolerance), newly diagnosed diabetes or previously diagnosed diabetes. Self-reported pain intensity and interference during the previous 4 weeks was estimated using the RAND 36-Item Health Survey 1.0. Information on use of pain medication during the past 12 months was obtained from the Social Insurance Institution of Finland.

RESULTS

There was no difference in pain intensity or interference between glucose regulation groups for neither men nor women after adjusting for covariates (age, body mass index, education years, Beck Depression Inventory and physical activity). In addition, use of pain medication was similar between glucose regulation groups.

CONCLUSIONS

Although pain is a common symptom in the general population, impairments in glucose regulation alone does not seem to increase pain among older individuals.

Analgesic purchases among older adults - a population-based study

Background

Pain is a frequent and inevitable factor affecting the quality of life among older people. Several studies have highlighted the ineffectiveness of treating chronic pain among the aged population, and little is known about the prevalence of analgesics administration among community-dwelling older adults. The objective was to examine older adults’ prescription analgesic purchases in relation to SF-36 pain in a population-based setting.

Methods

One thousand four hundred twenty community-dwelling citizens aged 62–86 years self-reported SF-36 bodily pain (pain intensity and pain-related interference) scores for the previous 4 weeks. The Social Insurance Institution of Finland register data on analgesic purchases for 6 months prior to and 6 months after the questionnaire data collection were considered. Special interest was focused on factors related to opioid purchases.

Results

Of all participants, 84% had purchased prescription analgesics during 1 year. NSAIDs were most frequently purchased (77%), while 41% had purchased paracetamol, 32% opioids, 17% gabapentinoids, and 7% tricyclic antidepressants. Age made no marked difference in purchasing prevalence. The number of morbidities was independently associated with analgesic purchases in all subjects and metabolic syndrome also with opioid purchases in subjects who had not reported any pain.

Discussion

Substantial NSAID and opioid purchases emerged. The importance of proper pain assessment and individual deliberation in terms of analgesic contraindications and pain quality, as well as non-pharmacological pain management, need to be highlighted in order to optimize older adults’ pain management.

Use of pain relieving drugs in community-dwelling older people with and without type 2 diabetes

AIMS

To analyze the use of pain medication among community-dwelling people aged 65 years or older with and without type 2 diabetes in primary care.

METHODS

A total of 187 patients with and 176 patients without diabetes were randomly selected from a primary care sample of 389 patients with diabetes and 604 age- and gender-matched controls. Pain status was defined as no pain, nociceptive pain or neuropathic pain. Pain medication (paracetamol, NSAID, opioids, neuropathic pain medication) use was based on electronic patient records and checked by a physician during a health examination.

RESULTS

Some pain was present in 90 (51%) patients without and in 106 (57%) patients with diabetes (p = 0.55). Of the patients without diabetes, 109 (62%) and with diabetes 123 (66%) used some pain medication (p = 0.45). The respective proportions for the regular use were 13% and 11% and for the as needed use 56% and 61%. Diabetes was not associated with any of the pain medications used. The use of pain-relieving drugs was most common for neuropathic pain.

CONCLUSIONS

The present study indicated that community-dwelling people with and without diabetes used pain medication similarly. Pain medication was used mostly as needed instead of being regular.

The Impact of Self-Reported Recurrent Headache on Absenteeism and Presenteeism at Work Among Finnish Municipal Female Employees

Purpose

The aim of this cross-sectional, observational study was to determine the impact of self-reported headache on absenteeism and presenteeism in a female working-age population.

Subjects and Methods

The study population consisted of 594 Finnish female municipal employees, who answered self-administered questionnaires including sociodemographic, lifestyle, health, and work-related data. Sickness absence days were obtained from the official records of the employer. Headache recurrence was defined by asking whether headache was occasional or recurrent. Headache impact was measured by the HIT-6.

Results

In our study, 456 (77%) females had headache, and headache was recurrent in 178 (39%). The self-reported recurrence of headache was related to age, AUDIT-C, health-rated quality-of-life, self-rated work ability, depressive symptoms, and work stress (P for linearity <0.001). They also had more depressive symptoms and work stress (P for linearity <0.001). Mental work load was highest in those with recurrent headache (P=0.042), and work engagement was highest in those without headache (P=0.038). There was no statistically significant difference in absenteeism days between the headache groups when adjusted with confounding variables. Presenteeism was associated with the recurrence of headache (P for linearity <0.001). Presenteeism and the HIT-6 score were significantly associated in the recurrent headache group (P=0.009).

Conclusion

Headache was not related to absenteeism, but the self-reported recurrence of headache was clearly associated with presenteeism in this female working-age population.

Initiating disease-modifying anti-rheumatic drugs rapidly reduces purchases of analgesic drugs in juvenile idiopathic arthritis

Objective: To describe the use of analgesics 12 months before and after initiation of the first disease-modifying anti-rheumatic drug (DMARD) in children with juvenile idiopathic arthritis (JIA). Method: A register-based study linked three nationwide registers in Finland: the Register on Reimbursement for Prescription Medicines, the Drug Purchase Register (both maintained by the Finnish Social Insurance Institution), and the Finnish Population Register. The study ran from 1 January 2010 to 31 December 2014. It included 1481 patients aged < 16 years with diagnosed JIA and 4511 matched controls. Index day was the date when reimbursement for JIA medication was approved and treatment was initiated. The study period included 12 months pre- and post-index date, and purchases of prescription drugs were assessed for 3 month periods. Results: Non-steroidal anti-inflammatory drugs (NSAIDs) were purchased for 60% of the patients. Compared to controls, NSAID purchases for JIA patients were at their highest during the last 3 months before the index day [relative rate (RR) 21.2, 95% confidence interval (CI) 17.1-26.2], and they decreased steeply over the 10-12 months post-index (RR 4.0, 95% CI 3.1-5.0). Similar trends were seen with paracetamol and opioid purchases, but only 2% of patients purchased opioids during the 12 months pre-index and 1% during the 12 months post-index. Methotrexate was the most commonly used DMARD (91.9%), biologic DMARDs were used by 2.8% and glucocorticoids by 24.8% in the 3 months after the index day. Conclusion: Initiation of DMARDs rapidly reduces the need for analgesics in patients with JIA.

Pain thresholds and intensities of CRPS type I and neuropathic pain in respect to sex

BACKGROUND AND AIMS

Healthy women have generally been found to have increased experimental pain perception and chronic pain has a higher prevalence in female as compared to male patients. However, no study has investigated whether pain intensity and pain perception thresholds are distinct or similar between sexes within various chronic pain entities. We investigated whether average pain intensities and pain thresholds assessed using quantitative sensory testing (QST) differed between women and men suffering from three distinct chronic pain conditions: Complex Regional Pain Syndrome (CRPS type I), peripheral nerve injury (PNI) or polyneuropathy (PNP), as compared to paired healthy volunteers.

METHODS

QST data of 1,252 patients (669 female, 583 male) with PNI (n = 342), PNP (n = 571) or CRPS (n = 339), and average pain intensity reports from previously published studies were included. Absolute and z-values (adjusted for age and body region) of cold, heat, pressure (PPT) and pinprick pain thresholds were compared in generalized linear models with aetiology, duration of underlying pain disease and average pain intensity as fixed effects.

RESULTS

Average pain intensity during the past four weeks did not differ between women and men, in both mean and range. In women absolute pain thresholds for cold, heat and pinprick were lower than in males across all diagnoses (p < .05). However, after z-transformation these differences disappeared except for PPT in CRPS (p = .001).

DISCUSSION

Pain thresholds in patients show only minor sex differences. However, these differences mimic those observed in healthy subjects and do not seem to be linked to specific pathophysiological processes.

SIGNIFICANCE

Female healthy participants and female patients with neuropathic pain conditions or CRPS I report lower pain thresholds compared to males, but pain intensity is similar and there is no sex difference in the extent to which the thresholds are altered in neuropathic pain or CRPS. Thus, the sex differences observed in various chronic pain conditions mimic those obtained in healthy participants, indicating that these differences are not linked to specific pathophysiological processes and are of minor clinical relevance.

Kidney function and nephrotoxic drug use among older home-dwelling persons with or without diabetes in Finland

Background

Due to these changes in kidney function, aging kidneys are more prone to drug-induced impairments in renal properties. Diabetes has been associated with the declined kidney function and an elevated risk of renal failure. The aim of this study is to compare kidney function and potentially nephrotoxic drug use among home-dwelling older persons with or without diabetes.

Methods

A total of 259 persons with and 259 persons without diabetes and aged ≥65 years were randomly selected to participate in a health examination with complete data gathered from 363 individuals (187 with diabetes and 176 without diabetes). The estimated glomerular filtration rate (eGFR) was calculated using CKD-EPI equation. Each participant was categorized based on the nephrotoxic profile of their medications.

Results

There were no differences in mean eGFR values (77.5 ± 18.8 vs. 80.5 ± 14.8 ml/min/1.73m², p = 0.089) or in the proportion of participants with eGFR < 60 ml/min/1.73m² among persons with diabetes (16% vs. 10%, p = 0.070), compared to persons without diabetes. Potentially nephrotoxic drug use was similar between the groups. The mean number of potentially nephrotoxic drugs was 1.06 ± 0.88 in those with and 0.97 ± 1.05 in those without diabetes (p = 0.39).

Conclusions

The kidney function of older persons with diabetes does not differ from that of older persons without diabetes and furthermore potentially nephrotoxic drug use seem to play only a minor role in the decline in kidney function among home-dwelling persons in the Inner-Savo district.

The role of psychosocial risk factors in the burden of headache

Purpose: Psychosocial risk factors are common in headache patients and affect the impact of headache in multiple ways. The aim of our study was to assess how psychosocial risk factors correlate with the headache impact test-6 (HIT-6). To our knowledge this is the first study to evaluate the impact of several psychosocial factors on the HIT-6 score.

Patients and methods: Our study population consisted of 469 Finnish female employees reporting headache during the past year. Psychosocial risk factors were assessed using validated, self-administered questionnaires: the generalized anxiety disorder 7-item scale (GAD-7) for anxiety, the major depression inventory (MDI) for depressive symptoms, the ENRICHD short social support instrument (ESSI) for social isolation, the cynical distrust scale for hostility and the Bergen burnout indicator (BBI-15) for work stress.

Results: Exploratory factor analysis of the HIT-6 scores revealed two factors, one describing psychological and quality of life aspects affected by headache and the other describing severity of pain and functional decline. Internal consistency of the HIT-6 was 0.87 (95%CI: 0.85–0.89). Correlations between the total HIT-6 score and all measured psychosocial risk factors except for hostility were weak, but statistically significant.

Conclusion: The HIT-6 questionnaire has good construct validity and it describes reliably and independently the impact of headache without interference of psychosocial factors in general working-aged female population.

Pain-related factors in older adults

BACKGROUND AND AIMS

Pain is an evident factor affecting the quality of life in all age groups. The objective was to examine the prevalence of self-reported SF-36 bodily pain and pain-related factors in community-dwelling older adults.

METHODS

One thousand four hundred and twenty adults aged 62-86 years self-reported SF-36 bodily pain during the previous month. For the analysis, four pain groups were formed (group I [0-45, moderate to very severe pain intensity and interference], group II [47.5-70], group III [77.5-90], and group IV [100, no pain at all]). Additional questionnaire-provided data regarding education, wealth, life habits, and morbidity, as well as clinical data were considered.

RESULTS

The overall pain prevalence was 78% (SF-36 bodily pain score <100). The prevalence of cohabiting, as well as the years of education and household income were found to decrease with an increasing SF-36 bodily pain score. The prevalence of a BMI of over 30 and of central obesity emerged as the highest in group I. Morbidities were found to be most prevalent in group I.

CONCLUSIONS

A high prevalence of intense and interfering pain was reported. Multiple factors that were found to relate to pain have previously been demonstrated to associate with social exclusion. Increasing attention should be paid to distinguishing these factors in patients with pain, as well as targeted pain assessment and measures to improve the sense of community among older adults.

IMPLICATIONS

There is a lack of large studies that examine a wide scale of pain-related factors in the older adult population. To distinguish subjects with multiple such factors would help medical professionals to target their attention to patients at a high risk of chronic pain.

Work-loss years among people diagnosed with diabetes: a reappraisal from a life course perspective

AIMS

Early exit from the workforce has been proposed to be one of the unfavorable consequences of diabetes. We examined whether early exit from the workforce differed between persons who were and were not diagnosed with diabetes during their work career.

METHODS

The cohort included 12,726 individuals of the Helsinki Birth Cohort Study, born between 1934 and 1944. Using data from nationwide registers, the cohort was followed up from early adulthood until they transitioned into retirement or died. Work-loss years were estimated using the restricted mean work years method.

RESULTS

During a follow-up of 382,328 person-years for men and 349 894 for women, 36.8% transitioned into old age pension and 63.2% exited workforce early. Among men, 40.5% of those with and 32.8% of those without diabetes transitioned into old age pension (p=0.003). The corresponding numbers for women were 48.6% and 40.4% (p = 0.013), respectively. Mean age at exit from the workforce was 60.1 (95% confidence interval [CI], 59.6 to 60.7) years among men with diabetes and 57.6 (95% CI, 57.2 to 58.0) years among men without diabetes (p = 0.016). Among women, corresponding ages were 61.4 (95% CI, 60.8 to 61.9) years for those with diabetes and 59.5 (95% CI, 59.3 to 59.7) years for those without diabetes (p < 0.001). The difference in mean restricted work-loss years according to diabetes was 2.5 (95% CI 0.5 to 4.6) for men and 1.9 (95% CI 1.0 to 2.8) for women.

CONCLUSION

Among individuals followed up throughout their work career, those with a diabetes diagnosis exited the workforce approximately two years later compared to those without diabetes.

Frequent pain in older people with and without diabetes - Finnish community based study

Background

The association between pain and diabetes in older people has been largely unexplored. The aim of this survey was to analyze the prevalence and characteristics of pain among Finnish men and women 65 or older with and without diabetes in primary care.

Methods

All home-dwelling persons 65 years or older with diabetes (N = 527) and age and gender matched controls (N = 890) were identified from electronic patient records. Frequent pain was regarded as any pain experienced more often than once a week, and it was divided into pain experienced several times a week but not daily and pain experienced daily or continuously. The Numeric Rating Scale (0–10) (NRS) was used to assess the intensity and interference of the pain.

Results

The number of subjects who returned the questionnaire was 1084 (76.5%). The prevalence of frequent pain in the preceding week was 50% among women without diabetes and 63% among women with diabetes (adjusted, p = 0.22). In men, the corresponding proportions were 42% without diabetes and 47% with diabetes (adjusted, p = 0.58). In both genders, depressive symptoms and the number of comorbidities were associated with pain experienced more often than once a week and with daily pain. Diabetes was not associated with pain intensity or pain interference in either women or men.

Conclusions

Pain in older adults is associated with depressive symptoms and the number of comorbidities more than with diabetes itself.

Superiority of capsaicin 8% patch versus oral pregabalin on dynamic mechanical allodynia in patients with peripheral neuropathic pain

Background

Dynamic Mechanical Allodynia (DMA) is a typical symptom of neuropathic pain (NP). In a recent study, the capsaicin 8% patch was noninferior to pregabalin in overall peripheral NP relief. In this study, we report the comparison of the two treatments in relieving DMA.

Methods

In a randomized, open‐label, head‐to‐head, 8‐week study, 488 patients with peripheral NP were treated with the capsaicin 8% patch (one application) or an optimized dose of pregabalin. Assessments included the area and intensity of DMA, and the number of patients achieving complete resolution of DMA.

Results

At baseline, 253 patients in the capsaicin 8% patch group and 235 patients in the pregabalin group had DMA. From baseline to end of study, the change in DMA intensity was significantly in favour of the capsaicin 8% patch versus pregabalin [−0.63 (95% CI: −1.04, −0.23; p = 0.002)]. Similarly, the capsaicin 8% patch was superior to pregabalin in reducing the area of DMA [−39.5 cm² (95% CI: −69.1, −10.0; p = 0.009)] from baseline to end of study. Overall, a greater proportion of patients had a complete resolution of allodynia with capsaicin 8% patch treatment compared with pregabalin treatment (24.1% vs. 12.3%; p = 0.001) at end of study.

Conclusion

Capsaicin 8% treatment was superior to pregabalin in reducing the intensity and area of DMA, and in the number of patients with complete resolution of DMA.

Significance

The superiority of a topical treatment over pregabalin in relieving DMA supports the view that both peripheral and central sensitization can mediate allodynia.

Glycemic control and health-related quality of life among older home-dwelling primary care patients with diabetes

AIMS

To evaluate the health-related quality of life (HRQoL) and functional capacity in relation to glycemic control among older home-dwelling primary care patients.

METHODS

Electronic patient records were used to identify 527 people over 65 years with diabetes. Of these, 259 randomly selected subjects were invited to a health examination and 172 of them attended and provided complete data. The participants were divided into three groups based on the HbA1c: good (HbA1c<48mmol/mol (N=95)), intermediate (HbA1c 48-57mmol/mol (N=48)) and poor (HbA1c>57mmol/mol (N=29)) glycemic control. HRQoL was measured with the EuroQol EQ-5D questionnaire. Functional and cognitive capacity and mental well-being were assessed with the Lawton Instrumental Activities of Daily Living (IADL) scale, Mini-Mental State Examination (MMSE) and Geriatric Depression Scale (GDS-15).

RESULTS

EQ-5D scores for good, intermediate and poor glycemic control were 0.78; 0.74 and 0.70, p=0.037. Sub-items of mobility (p=0.002) and self-care were the most affected (p=0.031). Corresponding trend was found for IADL, p=0.008. A significant correlation was found between MMSE scores and HbA1c.

CONCLUSION

Older primary care home-dwelling patients with diabetes and poorer glycemic control have lower functional capacity and HRQoL, especially in regard to mobility and self-care.

Incidence and predictive factors of spinal cord stimulation treatment after lumbar spine surgery

Introduction

Spinal cord stimulation (SCS) is recommended for the treatment of postsurgical chronic back and leg pain refractory to other treatments. We wanted to estimate the incidence and predictive factors of SCS treatment in our lumbar surgery cohort.

Patients and methods

Three questionnaires (a self-made questionnaire, the Oswestry Low Back Pain Disability Questionnaire, and the Beck Depression Inventory) were sent to patients aged 18–65 years with no contraindications for the use of SCS, and who had undergone non-traumatic lumbar spine surgery in the Oulu University Hospital between June 2005 and May 2008. Patients who had a daily pain intensity of ≥5/10 with predominant radicular component were interviewed by telephone.

Results

After exclusions, 814 patients remained in this cohort. Of those, 21 patients had received SCS by the end of June 2015. Fifteen (71%) of these received benefit and continued with the treatment. Complications were rare. The number of patients who replied to the postal survey were 537 (66%). Eleven of them had undergone SCS treatment after their reply. Features predicting SCS implantation were daily or continuous pain, higher intensities of pain with predominant radicular pain, more severe pain-related functional disability, a higher prevalence of depressive symptoms, and reduced benefit from pain medication. The mean waiting time was 65 months (26–93 months). One hundred patients were interviewed by telephone. Fourteen seemed to be potential SCS candidates. From the eleven patients who underwent SCS after responding to the survey, two were classified as potential candidates in the phone interview, while nine were other patients. Twelve patients are still waiting for treatment to commence.

Conclusion

In our region, the SCS treatment is used only for very serious pain conditions. Waiting time is too long and it may be the reason why this treatment option is not offered to all candidates.

A one-year follow-up study of chronic pain in community-dwelling older adults with and without neuropathic pain

Background

Chronic, mostly musculoskeletal pain is common among older adults. Little is known about the prognosis of chronic pain and the neuropathic pain qualities in older adults. We studied a cohort of community-dwelling older adults, clinically assessed their pain states, classified their type of pain (nociceptive, neuropathic or combined) and followed them up for a year.

Methods

At baseline, a geriatrician clinically examined all study patients and classified their type of pain in collaboration with a pain specialist. Pain, quality of life and mental health were measured by questionnaires (BPI, GDS-15, BAI and SF-36) and reassessed after 1 year.

Results

Despite chronic pain, all patients from the baseline cohort continued to live independently at 1 year. A total of 92 of 106 (87%) patients returned the follow-up questionnaire. Nociceptive pain on its own was present in 48 patients, whereas 44 patients also had neuropathic pain. Most patients (96%) had several pain states at baseline, and 13 patients reported a new pain state at follow-up. On average, there were no significant changes in the pain intensity, pain interference, mood or quality of life in either group between baseline and follow-up. Changes in pain were observed at the individual level, and both intensity and interference of pain at the follow-up had a negative correlation with the baseline value.

Conclusions

On average, chronic pain was persistent in our patients, but they were able to live independently despite their pain. At the individual level, both relief and exacerbation of pain were observed, supporting the notion that pain is not inevitable and unremitting among older adults.

Relationship of musculoskeletal pain and well-being at work - Does pain matter?

BACKGROUND AND AIMS

Musculoskeletal pain is a common symptom and many people even with chronic pain continue to work. The aim of our study is to analyze how musculoskeletal pain affects work well-being by comparing work engagement in employees with or without pain, and how pain-related risk of disability is associated with work engagement. In a separate analysis, we also studied, how psychosocial factors are related to work engagement.

METHODS

This is a cross-sectional study of Finnish female employees of the city of Pori, Finland (PORi To Aid Against Threats (PORTAAT) study). Data was collected by trained study nurses and self-administrated questionnaires. Work well-being was measured by work engagement using Utrecht Work Engagement Scale (UWES-9) questionnaire and the burden of pain was measured by using the short version of Örebro Musculoskeletal Pain Screening Questionnaire (ÖMPSQ). Study population was divided into four groups: those without pain and the groups with low (I), medium (II) or high (III) ÖMPSQ score, reflecting increasing risk of long term disability due to musculoskeletal pain. The study nurse assessed psychosocial risk factors using defined core questions.

RESULTS

We evaluated 702 female employees, 601 (86%) had suffered from musculoskeletal pain over the past 12 months, whereas 101 (14%) reported no pain at all. Pain was chronic (duration at least 3 months) in 465/601 (77%) subjects. Subjects with musculoskeletal pain were older, had higher BMI and were on sick leave more often than subjects without pain. Of the psychosocial risk factors, depression, type D personality, anxiety and hostility were significantly more common among subjects with musculoskeletal pain. Hypertension and the use of non-steroidal anti-inflammatory drugs were significantly more frequent in the musculoskeletal pain group. Quality of sleep and working capability were significantly better among persons without pain. Average weekly working hours were slightly higher among those with musculoskeletal pain. In crude analysis, work engagement (UWES-9) was similar in women without pain and those with musculoskeletal pain (4.96 vs. 4.79; p=0.091). After adjustment for age, education years, BMI, working hours and financial satisfaction, the difference between the groups became statistically significant (p=0.036). Still, there was no difference between the groups of no-pain and low burden of pain (p=0.21, after adjustment). Work engagement was significantly lower in the groups of medium (p=0.024, after adjusted) and high (p<0.001, after adjustment) burden of pain. Linearity across the Linton tertiles was significant (p<0.001). In univariate and multivariate ordered logistic regression analyses relating study variables to the work engagement musculoskeletal pain per se did not enter in the model to explain work engagement. Work and family stress, type D personality and duration of sick leave due to pain reduced work engagement, whereas financial satisfaction, moderate and high leisure time physical activity and higher BMI improved it.

CONCLUSIONS

Among women with musculoskeletal pain psychosocial and lifestyle factors significantly correlate with work engagement, while the pain itself does not.

IMPLICATIONS

Special attention should be paid to the psychosocial aspects in female employees with musculoskeletal pain to improve work well-being and maintain work ability.

Headaches After Acoustic Neuroma Surgery

Headache and depression were studied in patients who had undergone operation for acoustic neuroma. A questionnaire with headache and Beck Depression Inventory scale were sent to 228 patients, of whom 192 (84%) responded. Preoperative headache was reported by 61 (32%) of the respondents (47 migraine and nine tension-type headache) and 122 (64%) respondents had postoperative headache (15 new migraine and four new tension-type headache). The new postoperative headache was chronic (≥3 months) in 86% and continued at the time of the survey in 55% and presented typically as severe short-lasting attacks provoked by physical stress, bending or coughing. Non-steroidal anti-inflammatory drugs were effective in most cases. Depression (usually mild) occurred in 24% of the respondents, being significantly more common in prolonged postoperative headache patients. The operation doubled the prevalence of headache (from 32% to 64%). Headache after acoustic neuroma operation appears to be a specific subgroup of postcraniotomy headache.

Chronic pain among community-dwelling elderly: a population-based clinical study

OBJECTIVE

To present the occurrence, characteristics, etiology, interference, and medication of chronic pain among the elderly living independently at home.

DESIGN/SETTING

A total of 460 subjects in three cohorts aged 75, 80 and 85 years respectively received visits by communal home-care department nurses for a cross-sectional survey. Of them, 175 had chronic (duration ≥ 3 months) pain with an average intensity of ≥ 4/10 and/or ≥ moderate interference in daily life.

MAIN OUTCOME MEASURES

Clinical assessment was performed for consenting subjects to define the location, intensity, etiology, type, interference and medications of chronic pain.

RESULTS

According to home visits, elderly people with chronic pain rated their health and mobility worse and felt sadder, lonelier and more tired than those without chronic pain. A geriatrician made clinical assessments for 106 patients with chronic pain in 2009-2013. Of them, 66 had three, 35 had two and 5 had one pain condition. The worst pain was musculoskeletal in 88 (83%) of patients. Pain was pure nociceptive in 61 (58%), pure neuropathic in 9 (8%), combined nociceptive and neuropathic pain in 34 (32%), and idiopathic in 2 (2%) patients. On a numerical rating scale from 0 to 10, the mean and maximal intensity of the worst pain was 5.7 and 7.7, respectively, while the mean pain interference was 5.9. Mean pain intensity and maximal pain intensity decreased by age. Duration of pain was longer than 5 years in 51 (48%) patients. Regular pain medication was used by 82 (77%) patients, most commonly paracetamol or NSAIDs. Although pain limited the lives of the elderly with chronic pain, they were as satisfied with their lives as those without chronic pain.

CONCLUSIONS

Elderly people in our study often suffered from chronic pain, mostly musculoskeletal pain, and the origin of pain was neuropathic in up to 40% of these cases. However, elderly people with chronic pain rarely used the medications specifically for neuropathic pain. Based on increased loneliness, sadness and tiredness, as well as decreased subjective health and mobility, the quality of life was decreased among those with chronic pain compared with those without pain. KEY POINTS It is known that chronic pain is one of the most common reasons for general practice consultations and is more common in women than men. In our study using detailed clinical examinations, up to 40% of patients with chronic pain in cohorts aged 75, 80 and 85 years suffered from neuropathic pain. However, only a few elderly people with chronic pain used medications specifically for chronic pain, which may be due to side effects or non-willingness to experiment with these drugs. Elderly people with chronic pain rated their health and mobility to be worse and felt sadder, lonelier and more tired but were not less satisfied with their lives than those without chronic pain.

Neuropathic Pain Among Community-Dwelling Older People: A Clinical Study in Finland

BACKGROUND

Neuropathic pain is more common among older people than in the general population, and the efficacy of medical treatment often remains unsatisfactory.

OBJECTIVE

The aim of this study was to assess the presence, diagnostic certainty, etiology and treatment of neuropathic pain in community-dwelling older people with chronic pain.

METHODS

Independently living older people aged 75, 80 and 85 years subject to communal preventive home visits with chronic pain were invited to a clinical pain examination by a geriatrician.

RESULTS

Overall, 106 patients consented to participate in the clinical study. Neuropathic pain was diagnosed in 51 (48%) patients, with 75% of pain states definite and 25% probable neuropathic pain. The most common etiology was degenerative disease of the spinal column causing radiculopathy. At the study visit, 11 patients (22% of neuropathic pain patients) were receiving medication that was demonstrated to be effective against neuropathic pain. The geriatrician recommended a trial of a new medicine for 17 patients, but only six continued the medication going forward.

CONCLUSIONS

Neuropathic pain was surprisingly common in our cohort. Finding effective pain medication is challenging due to comorbidities, possible side effects, and vulnerability in older age. Other pain management methods should be considered.

Depressive symptoms are associated with poor outcome for lumbar spine surgery

BACKGROUND AND AIMS

The symptoms of pain and depression often present concomitantly, but little is known as to how the different subtypes of depression affect surgical outcome. The aim of this study was to determine whether there is a difference in outcome after lumbar spine surgery between non-depressed patients and patients with different subtypes of depressive symptoms: non-melancholic (NmDS) and melancholic depression (MDS).

METHODS

This was a cross-sectional postal survey. A self-made questionnaire, the Beck Depression Inventory (BDI) and the Oswestery Low Back Disability Questionnaire (ODI) were sent to patients who had undergone lumbar spine surgery in the Oulu University Hospital between June, 2005 and May, 2008. BDI≥10 were further classified into NmDS or MDS.

RESULTS

A total of 537 patients (66%) completed the survey. Of these, 361 (67%) underwent disc surgery, 85 (16%) stabilizing surgery and 91 (17%) decompression. Participants were divided into three groups: BDI<10 N=324 (60%), NmDS N=153 (29%) and MDS N=60 (11%). The mean ODI (SD) in the BDI<10 group was 16 (15), in the NmDS group 36 (15), and in the MDS group 41 (18) (p<0.001). The ODI profiles were different between the groups (p<0.001). Pain was more frequent in depressive patients (88% of MDS, 81% in NmDS and 40% in BDI<10 patients experienced pain, p<0.001). The intensity of pain and pain-related disability was lowest among the patients in the BDI<10 group and highest among the MDS patients. Regular pain medication was used by 87% of patients in the MDS group, 93% of patients in the NmDS group, and 71% of patients in the BDI<10 group (p<0.001). Response to pain medication with NRS (0-10) was 5.6 among MDS, 5.8 among NmDS and 6.5 among BDI<10 patients (p<0.001).

CONCLUSION

Different types of depressive symptoms are associated with poor outcome after lumbar spine surgery. The outcome was worst in patients suffering from the MDS subtype. This was observed in pain intensity, functional disability and response to pain medication.

IMPLICATION

It would be important to evaluate depression pre- and postoperatively. Offering a tailored rehabilitation programme to MDS patients should be considered.

Obesity has an impact on outcome in lumbar disc surgery

PURPOSE

To investigate the effect of obesity on outcome in lumbar discectomy.

METHODS

A cross-sectional postal survey; a self-made questionnaire, Beck depression inventory IA (BDI IA) and the Oswestry low back disability questionnaire (ODI) were sent to the patients, who had undergone lumbar disc surgery in the Oulu University Hospital between June 2005 and May 2008. Patients were divided into three groups according to BMI: normal, pre-obese and obese. The ODI was also examined in the framework of the international classification of functioning, disability and health (ICF) to investigate its ability to describe various dimensions of functioning (body structure and functions, activities and participation).

RESULTS

The postal survey was sent to 642 patients, of whom 355 (55%) replied. Males dominated in the pre-obese (66%) and obese (62%) groups (p=0.01). Normal-weighted and pre-obese patients had lower BDI scores compared to obese patients (mean BDI: 8.0, 7.6, 11.2, respectively, p=0.035). Total ODI score was highest in the obese group compared to normal-weighted or pre-obese (20.3, 18.6, 26.4, respectively, p=0.011). When ODI was linked to the ICF there were significant differences in all activity domains (mobility, self-care and interpersonal interactions and relationships) and the mobility component of the participation domain between the weight groups.

CONCLUSIONS AND IMPLICATIONS

Obesity has an impact on outcome in lumbar discectomy. Obese patients had higher scores in BDI and ODI indicating mild mood disturbances and moderate functional disability. According to ICF, functional disability of obese patients was observed to some extent in all activity domains. Obese patients will be more frequently present for disc surgery and increased morbidity risk must be recognized. We need a strategy to rehabilitate and activate obese patients pre- and postoperatively.

[Update on current care guidelines. Pain]

Management of patients suffering from chronic pain is based on long-term therapeutic relationship. The main objectives of the treatment are pain relief, restoration of function and improvement of quality of life. Interventions for treatment and rehabilitation need to be planned in agreement with the patient. Non-pharmaceutical interventions form the basics of the treatment. If medication is needed, it should be tailored to meet the individual needs of the patient according to the etiology and intensity of pain, comorbidities and psychosocial situation.

Capsaicin 8% patch versus oral pregabalin in patients with peripheral neuropathic pain

BACKGROUND

Clinical trials have not yet compared the efficacy of capsaicin 8% patch with current standard therapy in peripheral neuropathic pain (PNP).

OBJECTIVES

Head-to-head efficacy and safety trial comparing the capsaicin patch with pregabalin in PNP.

METHODS

Open-label, randomized, multicentre, non-inferiority trial. Patients with PNP, aged 18-80 years, were randomly assigned to either the capsaicin 8% patch (n = 282) or an optimised dose of oral pregabalin (n = 277), and assessed for a ≥30% mean decrease in Numeric Pain Rating Scale (NPRS) score from baseline to Week 8. Secondary endpoints included optimal therapeutic effect (OTE), time-to-onset of pain relief and treatment satisfaction.

RESULTS

The capsaicin 8% patch was non-inferior to pregabalin in achievement of a ≥30% mean decrease in NPRS score from baseline to Week 8 (55.7% vs. 54.5%, respectively; Odds ratio: 1.03 [95% CI: 0.72, 1.50]). The proportion of patients achieving OTE at Week 8 was 52.1% for the capsaicin 8% patch versus 44.8% for pregabalin (difference: 7.3%; 95% CI: -0.9%, 15.6%). The median time-to-onset of pain relief was significantly shorter for capsaicin 8% patch versus pregabalin (7.5 vs. 36.0 days; Hazard ratio: 1.68 [95% CI: 1.35, 2.08]; p < 0.0001). Treatment satisfaction was also significantly greater with the capsaicin 8% patch versus pregabalin. TEAEs were mild-to-moderate in severity, and resulted in treatment discontinuation only with pregabalin (n = 24). Systemic adverse drug reactions ranged from 0 to 1.1% with capsaicin 8% patch and 2.5 to 18.4% with pregabalin.

CONCLUSIONS

The capsaicin 8% patch provided non-inferior pain relief to an optimized dose of pregabalin in PNP, with a faster onset of action, fewer systemic side effects and greater treatment satisfaction.

Neuropathic pain phenotyping by international consensus (NeuroPPIC) for genetic studies: a NeuPSIG systematic review, Delphi survey, and expert panel recommendations

For genetic research to contribute more fully to furthering our knowledge of neuropathic pain, we require an agreed, valid, and feasible approach to phenotyping, to allow collaboration and replication in samples of sufficient size. Results from genetic studies on neuropathic pain have been inconsistent and have met with replication difficulties, in part because of differences in phenotypes used for case ascertainment. Because there is no consensus on the nature of these phenotypes, nor on the methods of collecting them, this study aimed to provide guidelines on collecting and reporting phenotypes in cases and controls for genetic studies. Consensus was achieved through a staged approach: (1) systematic literature review to identify all neuropathic pain phenotypes used in previous genetic studies; (2) Delphi survey to identify the most useful neuropathic pain phenotypes and their validity and feasibility; and (3) meeting of experts to reach consensus on the optimal phenotype(s) to be collected from patients with neuropathic pain for genetic studies. A basic "entry level" set of phenotypes was identified for any genetic study of neuropathic pain. This set identifies cases of "possible" neuropathic pain, and controls, and includes: (1) a validated symptom-based questionnaire to determine whether any pain is likely to be neuropathic; (2) body chart or checklist to identify whether the area of pain distribution is neuroanatomically logical; and (3) details of pain history (intensity, duration, any formal diagnosis). This NeuroPPIC "entry level" set of phenotypes can be expanded by more extensive and specific measures, as determined by scientific requirements and resource availability.

Pharmacotherapy for neuropathic pain in adults: a systematic review and meta-analysis

BACKGROUND

New drug treatments, clinical trials, and standards of quality for assessment of evidence justify an update of evidence-based recommendations for the pharmacological treatment of neuropathic pain. Using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE), we revised the Special Interest Group on Neuropathic Pain (NeuPSIG) recommendations for the pharmacotherapy of neuropathic pain based on the results of a systematic review and meta-analysis.

METHODS

Between April, 2013, and January, 2014, NeuPSIG of the International Association for the Study of Pain did a systematic review and meta-analysis of randomised, double-blind studies of oral and topical pharmacotherapy for neuropathic pain, including studies published in peer-reviewed journals since January, 1966, and unpublished trials retrieved from ClinicalTrials.gov and websites of pharmaceutical companies. We used number needed to treat (NNT) for 50% pain relief as a primary measure and assessed publication bias; NNT was calculated with the fixed-effects Mantel-Haenszel method.

FINDINGS

229 studies were included in the meta-analysis. Analysis of publication bias suggested a 10% overstatement of treatment effects. Studies published in peer-reviewed journals reported greater effects than did unpublished studies (r(2) 9·3%, p=0·009). Trial outcomes were generally modest: in particular, combined NNTs were 6·4 (95% CI 5·2-8·4) for serotonin-noradrenaline reuptake inhibitors, mainly including duloxetine (nine of 14 studies); 7·7 (6·5-9·4) for pregabalin; 7·2 (5·9-9·21) for gabapentin, including gabapentin extended release and enacarbil; and 10·6 (7·4-19·0) for capsaicin high-concentration patches. NNTs were lower for tricyclic antidepressants, strong opioids, tramadol, and botulinum toxin A, and undetermined for lidocaine patches. Based on GRADE, final quality of evidence was moderate or high for all treatments apart from lidocaine patches; tolerability and safety, and values and preferences were higher for topical drugs; and cost was lower for tricyclic antidepressants and tramadol. These findings permitted a strong recommendation for use and proposal as first-line treatment in neuropathic pain for tricyclic antidepressants, serotonin-noradrenaline reuptake inhibitors, pregabalin, and gabapentin; a weak recommendation for use and proposal as second line for lidocaine patches, capsaicin high-concentration patches, and tramadol; and a weak recommendation for use and proposal as third line for strong opioids and botulinum toxin A. Topical agents and botulinum toxin A are recommended for peripheral neuropathic pain only.

INTERPRETATION

Our results support a revision of the NeuPSIG recommendations for the pharmacotherapy of neuropathic pain. Inadequate response to drug treatments constitutes a substantial unmet need in patients with neuropathic pain. Modest efficacy, large placebo responses, heterogeneous diagnostic criteria, and poor phenotypic profiling probably account for moderate trial outcomes and should be taken into account in future studies.

FUNDING

NeuPSIG of the International Association for the Study of Pain.

[Update on Current Care Guideline: Low back pain]

Classification to severe diseases, sciatic symptoms or non-specific back pain is recommended. Radiography in acute or subacute non-specific back pain is not recommended in the primary health care. In specialized care magnetic resonance imaging is the main imaging modality. Importance of patient information is emphasized. In acute non-specific pain avoidance of bed rest, advice and paracetamol are recommended. Indications for an emergency referral should be considered. In disabling pain for 6 weeks, multidisciplinary measures are needed. Pain over 3 months indicates intensive multidisciplinary rehabilitation, and also surgery may be considered.

[Can we prevent pain becoming chronic?]

Central aspects in the prevention of pain from becoming chronic are good management of acute pain, early recognition of risk factors and a multidisciplinary working approach. Postherpetic neuralgia can probably be prevented with a vaccine and medication. In the prevention of prolonged postoperative pains there is some evidence of the effect of local anesthetics and ketamine, but their clinical significance is unclear. Multidisciplinary therapeutic and rehabilitative actions can be taken to prevent prolongation and recurrence of lower back pain especially in patients having an increased risk of chronic pain.

Results of lumbar spine surgery: A postal survey

Background and aim No studies have been published regarding the results of lumbar spine surgery a in population-based setting in Finland. Our objective was to investigate functional capacity and quality of life after lumbar spine surgery in a population-based cohort in Northern Finland, focusing on working-age patients. Methods This was a cross-sectional postal survey. Three questionnaires (a self-made questionnaire, the Oswestry Low Back Disability Questionnaire and the SF-36) were sent the patients aged 18-65 years who had undergone lumbar spine surgery due to disc herniation, instability or spinal stenosis in the Oulu University Hospital between June 2005 and May 2008. Results The postal survey was sent to 814 patients, of whom 537 patients (66%) replied. Of these, 361 (67%) underwent disc surgery, 85 (16%) stabilizing surgery and 91 (17%) decompression. Pain was absent or present only occasional in 51% in the disc surgery group, whereas it was present daily in 59% in the stabilizing surgery group and in 58% in the decompression group (P < 0.001). Axial pain was slightly more intense than radicular pain. Pain was milder in the disc surgery group compared with the stabilizing surgery and decompression groups: mean (SD) axial pain with 0-10 NRS was 4.0 (2.3), 4.7 (2.4) and 4 (2.3) respectively (P = 0.002) and radicular pain 3.5 (2.6), 4.2 (2.8), 4.5 (2.6) respectively (P < 0.001). The total ODI score (mean, SD) was 20 (17) in the disc surgery group, 35 (17) in the stabilizing surgery group and 32 (17) in the decompression group (P < 0.001). The physical dimension sum score from the SF-was 42 (11) in the disc surgery group and 34 (10) in the stabilizing surgery and decompression grou (P < 0.001). Mental sum scores did not vary significantly between the groups. Conclusions and Implications Outcome was good after lumbar disc operations but less favourable after stabilizing surgery and decompression regarding pain, functional capacity and quality of life.

IMPLICATIONS

This study offers important information about outcome after lumbar spine surgery in Oulu University Hospital. It also brings out that in Finland we need systematic national spine register, with accurate pre-and postoperative data.

Central poststroke pain in young ischemic stroke survivors in the Helsinki Young Stroke Registry

OBJECTIVE

We describe the frequency, duration, clinical characteristics, and radiologic correlates of central poststroke pain (CPSP) in young ischemic stroke survivors in a prospective study setting.

METHODS

A questionnaire of pain and sensory abnormalities and EQ-5D quality-of-life questionnaire were sent to all 824 surviving and eligible patients of the Helsinki Young Stroke Registry. Patients (n = 58) with suspected CPSP were invited to a clinical visit and filled in the PainDETECT, Brief Pain Inventory, and Beck Depression Inventory questionnaires.

RESULTS

Of the included 824 patients, 49 had CPSP (5.9%), 246 patients (29.9%) had sensory abnormality without CPSP, and 529 patients (64.2%) had neither sensory abnormality nor CPSP. The median follow-up time from stroke was 8.5 years (interquartile range 5.0-12.1). Patients with CPSP had low quality of life compared to those with sensory abnormality without CPSP (p = 0.007) as well as to those with no sensory abnormality and no CPSP (p < 0.001). Forty (82%) of the patients with CPSP had concomitant other pain. CPSP was associated with moderate (p < 0.001) and severe (p < 0.001) stroke symptoms, but there was no difference in age at stroke onset or subtype of stroke according to the TOAST classification between the groups. Stroke localization was not correlated with CPSP.

CONCLUSIONS

Late persistent CPSP was found in 5.9% of young stroke survivors and was associated with concomitant other pain, impaired quality of life, and moderate or severe stroke symptoms.

Finnish Fanconi anemia mutations and hereditary predisposition to breast and prostate cancer

Mutations in downstream Fanconi anemia (FA) pathway genes, BRCA2, PALB2, BRIP1 and RAD51C, explain part of the hereditary breast cancer susceptibility, but the contribution of other FA genes has remained questionable. Due to FA's rarity, the finding of recurrent deleterious FA mutations among breast cancer families is challenging. The use of founder populations, such as the Finns, could provide some advantage in this. Here, we have resolved complementation groups and causative mutations of five FA patients, representing the first mutation confirmed FA cases in Finland. These patients belonged to complementation groups FA-A (n = 3), FA-G (n = 1) and FA-I (n = 1). The prevalence of the six FA causing mutations was then studied in breast (n = 1840) and prostate (n = 565) cancer cohorts, and in matched controls (n = 1176 females, n = 469 males). All mutations were recurrent, but no significant association with cancer susceptibility was observed for any: the prevalence of FANCI c.2957_2969del and c.3041G>A mutations was even highest in healthy males (1.7%). This strengthens the exclusive role of downstream genes in cancer predisposition. From a clinical point of view, current results provide fundamental information of the mutations to be tested first in all suspected FA cases in Finland.

[Treatment of painful diabetic polyneuropathy]

Painful neuropathy is a common complication of diabetes and causes disability and impaired quality of life. Treatment of neuropathy aims at pain relief, improved function and quality of life and avoidance of foot ulcers. Progression of neuropathy is prevented with good glycemic control and treatment of the risk factors of atherosclerosis. In pain relief the first-line drugs are tricyclic antidepressants, SNRIs and gabapentinoids. Comorbidities, concomitant medications and possible contraindications are taken into account in drug selection. Since treatment with a single agent does not provide sufficient pain relief, combination of two drugs with different mechanism of action is recommended. Most patients need long-term treatment.

Do fibromyalgia patients use active pain management strategies? A cohort study

OBJECTIVE

The aim of this study was to examine the types of pain management strategies used by patients with fibromyalgia.

METHODS

A total of 158 patients with primary fibromyalgia attended a clinical visit to confirm the diagnosis. They completed 3 questionnaires: (i) a self-made questionnaire, (ii) Beck Depression Inventory IA (BDI IA), and (iii) Finnish version of Fibromyalgia Impact Questionnaire. The self-made questionnaire included questions about: intensity of current pain; general well-being; pain management strategies, including pain medications; efficacy of the pain management methods; current health problems other than fibromyalgia. The pain management strategies were subcategorized (e.g., physical exercise, massage and heat treatment). The strategies were also divided into active and passive types.

RESULTS

The most frequently reported pain management strategies were physical exercise (54%), physical therapy (32%) and cold treatment (27%). The use of active pain management strategies, BDI IA < 10 points and age were independent predictors of the reported pain management efficacy. Patients who used active pain management strategies reported better efficacy with the BDI IA score ≥ 10 points.

CONCLUSION

Active pain management strategies are most efficacious for fibromyalgia patients, regardless of the severity of fibromyalgia or optional comorbid depression.

Neuropathic pain and use of PainDETECT in patients with fibromyalgia: a cohort study

Backround

Fibromyalgia has a plethorae of symptoms, which can be confusing and even misleading. Accurate evaluation is necessary when patients with fibromyalgia are treated. Different types of instruments are available for the clinicians to supplement evaluation. Our objective was to study the applicability of the PainDETECT instrument to screen neuropathic pain in patients with fibromyalgia.

Methods

158 patients with primary fibromyalgia underwent a neurological examination including bedside sensory testing. They also fulfilled four questionnaires: PainDETECT, Beck depression inventory IA (BDI IA), Fibromyalgia Impact Questionnaire (FIQ) and a self-made questionnaire regarding present pain and pain relieving methods of the patients. The results of the clinical evaluation and questionnaires were then compared.

Results

Clinically verified neuropathic pain was diagnosed in 53/158 [34% (95% Cl: 26 to 41)] patients. The ROC curve achieved a maximum Youden´s index at score of 17 when sensitivity was 0.79 (95% Cl: 0.66 to 0.89) and specificity 0.53 (95% Cl: 0.43 to 0.63). The PainDETECT total score (OR: 1.14 95% Cl: 1.06 to 1.22), FM as the worst current pain (OR: 0.31; 95% 0.16 to 0.62), body mass index (BMI) (OR: 1.05; 95% Cl: 1.00 to 1.11) and the intensity of current pain (OR: 1.20; 95% Cl: 1.01 to 1.41) were significantly associated with the presence of neuropathic pain in univariate analyses.

Conclusion

This study highlights the importance of thorough clinical examination. The Neuropathic pain screening tool PainDETECT is not as useful in patients with fibromyalgia as in patients with uncompromised central pain control.

The assessment of neuropathic pain patients

SUMMARY Neuropathic pain arises as a direct consequence of a lesion or a disease affecting the somatosensory system. It is prevalent, under-diagnosed and under-treated. A key challenge to a clinician is to identify neuropathic pain and evaluate whether referral to a specialist is needed to clarify the causative disease. Location of neuropathic pain is neuroanatomically plausible, and clinical examination reveals abnormal sensory function in the area of pain. Sensory testing with simple tools is the most important part of the clinical examination. Other neurological findings are searched to conclude the location of the lesion in the neuraxis. Pain intensity and possible comorbidities such as impaired sleep, anxiety, depression and disability should be assessed at baseline and during management to evaluate the treatment effect.

Capsaicin for neuropathic pain: linking traditional medicine and molecular biology

Capsaicin has long been used as a traditional medicine to treat pain and, recently, its mechanism of analgesic action has been discovered. This review article documents the clinical development of capsaicin to demonstrate that pharmacognosy still has a profound influence on modern-day drug development programs. Capsaicin is a highly selective agonist for the transient receptor potential channel vanilloid-receptor type 1 (TRPV1), which is expressed on central and peripheral terminals of nociceptive primary sensory neurons. Knockout studies have revealed the importance of TRPV1 as a molecular pain integrator and target for novel analgesic agents. Topical application of capsaicin at the peripheral terminal of TRPV1-expressing neurons superficially denervates the epidermis in humans in a highly selective manner and results in hypoalgesia. In three recent randomized controlled trials, a patch containing high-concentration capsaicin demonstrated meaningful efficacy and tolerability relative to a low-concentration capsaicin control patch in patients with peripheral neuropathic pain. Data from clinical practice will determine if the high-concentration capsaicin patch is effective in real-world settings.

Pulsed radiofrequency in peripheral posttraumatic neuropathic pain: A double blind sham controlled randomized clinical trial

Background and purpose Pulsed radiofrequency (PRF) is widely used for the treatment of chronic pain, although its mechanism of action is not known. The evidence of efficacy of PRF for neuropathic pain (NP) conditions is limited. A double-blind, randomized, sham-controlled parallel study was conducted to evaluate the efficacy and safety of PRF in the treatment of peripheral posttraumatic NP. Methods Forty-five patients with peripheral posttraumatic NP in their upper or lower limb were randomly assigned to receive PRF or sham treatment to the injured peripheral nerve (s) causing peripheral posttraumatic NP. Only patients whose pain intensity was at least 5 on numerical rating scale (NRS) 0-10 and who had suffered from their NP for at least 6 months were included. All patients had dynamic mechanical allodynia or pinprick hyperalgesia in their painful area. They had achieved temporary pain relief of at least 50% with a local nerve block performed at a previous visit. The primary efficacy variable was the difference in 3-day mean pain intensity score from the baseline to 3 months. Other variables included response defined as ≥30% reduction in mean pain intensity at 3 months compared to baseline, Neuropathic Pain Scale (NPS) results, health related quality of life (SF-36) and adverse effects. The skin was anesthetized with 1% lidocaine. A radiofrequency needle was introduced through the skin, and then guided to a SMK cannula (52, 100 or 144mm depending on the target nerve) with 4 or 5mm active tip (SMK-C5-4, SMK-C10-5, SMK-C15-5, Radionics®, Burlington, MA, USA). The nerve was located accurately by stimulating at 50 Hz (threshold <0.5 V). Sham treatment or PRF was applied for 120s 1-4 times at each treatment point (Radionics®, Burlington, MA, USA). The total treatment time was up to 8 min. Both patients and clinicians were blinded during the whole treatment and follow-up period. Results Forty-three patients were included in the analyses. There was no statistically significant difference between PRF and sham treatment for the primary outcome efficacy variable. Seven patients (3 in PRF group and 4 in sham treatment group) achieved ≥30% pain relief (difference between groups was not significant). There was no statistically significant difference in the NPS or any dimension of SF-36 between the treatments. Eighteen patients reported adverse effects. They were mild and did not necessitate any treatment. Transient pain was reported by 17 patients, local irritation by 5 patients and local inflammation by 1 patient. There was no significant difference between the groups in the presence of adverse effects. Conclusions PRF was well tolerated, but this study failed to show efficacy of PRF over sham treatment for peripheral posttraumatic NP. Implications Based on our results, we do not recommend PRF for peripheral posttraumatic NP. More research of the possible use of PRF for various pain conditions is needed to determine its role in the management of prolonged pains.

Anxiety and depression are independent predictors of quality of life of patients with chronic musculoskeletal pain

We examined the relative impact of baseline anxiety, depression and fear of movement on health related quality of life at 12-month follow-up after a multidisciplinary pain management programme. One hundred and eleven patients who had chronic musculoskeletal pain (mean age 45 years, 65% women) attended during 2003–2005 a multidisciplinary three-phase pain management programme with a total time frame of six to seven months, totalling 19 days. The Beck Anxiety Inventory was used to rate anxiety, the Beck Depression Inventory depression, the Tampa Scale of Kinesiophobia fear of movement. The generic 15D questionnaire was used to assess health related quality of life. Baseline data were collected at admission, follow-up data at 12 months. Mean health related quality of life increased significantly from baseline to 12-month follow-up. Anxiety at baseline predicted significant negative change in the health related quality of life, depression predicted significant positive change in the health related quality of life. Fear of movement did not predict any significant change in the health related quality of life. We concluded that patients with chronic musculoskeletal pain and mild to moderate depression benefit from a multidisciplinary pain management programme in contrast to anxious patients. The findings imply further research with bigger sample sizes, other than HRQoL outcome measures as well as with other groups of patients.

Validation of a Finnish version of the Fibromyalgia Impact Questionnaire (Finn-FIQ)

Background and purpose Fibromyalgia (FM) is a chronic pain syndrome, which affects up to 5% of the general population. The aetiology of FM is unclear. The lack of specific diagnostic laboratory tests or imaging options combined with the severe burden on both patients and society caused by the FM syndrome demands the development of valid instruments able to measure the current health status of the FM patients. The Fibromyalgia Impact Questionnaire (FIQ) is the most widely used of these instruments. Our objective was to translate the Fibromyalgia Impact Questionnaire (FIQ) into Finnish and evaluate its validity in Finnish speaking FM patients. Methods FIQ was translated by two bilingual researchers into the Finnish version (Finn-FIQ) and linked to the categories of International Classification of Functioning, Disability and Health (ICF). Finn-FIQ was administered to 162 patients who had prior fibromyalgia diagnoses M79.0 according to ICD-10 year 2006 version. They also filled in the Health Assessment Questionnaire (HAQ), the Rand 36-item Health Survey (RAND-36), the Beck Depression Inventory IA (BDIIA), the Chronic Pain Acceptance Questionnaire (CPAQ), the International Physical Activity Questionnaire Short Form (IPAQ), and they assessed their general well-being on a 0-100 mm visual analogue scale while attending a clinical check-up visit. Internal consistency was estimated according to Cronbach's alpha internal consistency. An exploratory factor analysis was performed to identify related items and to show construct validity. Correlation coefficients were calculated by the Spearman method. Results From the 162 participants 153 were female and 9 male, 119 (73%) had an active job or were students, 21 (13%) were unemployed, 16 (10%) were retired and 6 (4%) were on sick leave. The mean age was 47 years. The internal consistency value (95% CI) was 0.90 for the overall Finn-FIQ. The factor analysis performed for construct analysis showed that Finn-FIQ was loaded on 4 factors. These factors were loaded on components of ICF and explained 69% of total variance. Significant correlations were obtained between patients own assessments of general well-being and Finn-FIQ total score (r = 0.64 [95% CI 0.53-0.73]) and also between Finn-FIQ total score and HAQ total score (r = 0.56 [95% CI 0.44-0.66]). Finn-FIQ questions had significant correlations with RAND-36 domains. Conclusion Finn-FIQ is a valid and feasible instrument to mirror the functioning of FM patients according to its internal consistency, correlation to general well-being, convergent validity and response rate. It covers the main components of the ICF framework hence reflecting the whole spectrum of functioning. Implications In our study Finn-FIQ was proven as a valid instrument with Finnish speaking FM patients. Original FIQ and other validated translations have already confirmed their place in fibromyalgia research. After this study Finnish fibromyalgia research can be included in those using the best-known instrument in validated form and native language. Current study showed also Finn-FIQ's ability to measure functioning of the FM patients, and it had good applicability among Finnish speaking patients. Therefore it can be recommended also for monitoring individual FM patients and their functioning for example during different treatment trials.

Association of fear of movement and leisure-time physical activity among patients with chronic pain

OBJECTIVE

The aim of this study was to clarify the association of fear of movement and physical activity among patients with chronic musculoskeletal pain.

METHODS

The sample comprised 93 patients participating in a multidisciplinary pain management programme. The purpose of the programme was to regain overall functioning by means of physical and functional exercises, education and personal pain management training. Tampa Scale of Kinesio-phobia and Leisure Time Physical Activity questionnaires were completed at baseline, and at 6-month and 12-month follow-ups.

RESULTS

At baseline, low and medium kinesiophobia groups showed more leisure-time physical activity than did the high kinesiophobia group (p = 0.024). At a 6-month follow-up the high kinesiophobia group had increased their physical activity index to the level of the low and medium kinesiophobia groups and maintained that change to 12-month follow-up. The effect sizes of the change in the physical activity index and pain intensity at the 12-month follow-up were both moderate (0.56) in the high kinesiophobia group.

CONCLUSION

The change in physical activity and kinesiophobia was associated with the level of baseline kinesiophobia. Multidisciplinary rehabilitation seems to produce favourable effects in terms of physical activity and pain among the high kinesiophobia patients.