Pain management index (PMI)-does it reflect cancer patients' wish for focus on pain?

Efficacy of Multidisciplinary Pain Management for Advanced Cancer Patients

OBJECTIVES

The objective of this study is to assess the efficacy and affecting factors of a multidisciplinary team (MDT) on cancer-related pain in patients with advanced cancer.

METHODS

A retrospective analysis was performed on patients receiving pain management from November 2018 to December 2023 by the MDT. Pain intensity, pain management index (PMI), pain response, and Barthel index of activities of daily living (BADL) were assessed at baseline and/or after 2 weeks of MDT interventions. Univariate and multiple logistic analyses were conducted to identify risk indicators for pain response.

RESULTS

After interventions, pain intensity, numerical rating scale (NRS) scores, and PMI significantly improved in all patients (p < .001). Subgroup analyses revealed that pain intensity and NRS scores were notably reduced, while PMI increased after the interventions in the responders (p < .001). Conversely, no significant changes were observed in pain intensity, NRS scores, or PMI for the nonresponders following MDT intervention. MDT interventions did not lead to improvements in BADL for either group. Patients who underwent radiotherapy exhibited a significantly higher overall response rate (ORR) compared to those without radiotherapy (100% vs 60.8%, p = .033). In univariate analysis, lower KPS scores and visceral pain showed negative associations with pain response. However, in multivariate analysis, neither maintained significance.

CONCLUSIONS

The pain MDT demonstrated remarkable improvements in clinical management and pain control. Further prospective studies are warranted to investigate predictive factors associated with pain treatment.

[Analgesic treatment and pain management in patients with advanced chronic disease. Opportunities for improvement]

OBJECTIVES

To describe the analgesic treatment of patients with advanced chronic disease (ACD), to determine pain management, and to detect opportunities for improvement.

DESIGN

Observational, descriptive, cross-sectional, multicentre study.

LOCATION

Three primary care teams, one intermediate care hospital and five nursing homes in Catalonia.

PARTICIPANTS

Patients with ACD and pain according to the Brief Pain Inventory (Short Form) scale (or Pain Assessment in Advanced Dementia scale, in case of advanced dementia).

MAIN MEASUREMENTS

Place of care (home, nursing home, hospital), end of life (EOL) trajectory (organ failure, cancer, dementia, multimorbidity), type of analgesic treatment and pain management according to the Pain Management Index scale.

RESULTS

The study included 183 patients. The most frequent EOL trajectory was dementia, followed by organ failure, multimorbidity and cancer. The most commonly used analgesic was paracetamol, while weak opioids were testimonial. Analgesic use differed according to EOL trajectory and place of care, with the use of strong opioids prevailing in cancer and hospital, respectively. Almost half of patients had negative PMI, and none non-pharmacological intervention for pain control was recorded.

CONCLUSIONS

In patients with ACD and palliative needs, the use of strong opioids continues to prevail in the hospital setting and oncological disease, although pain is highly prevalent in all EOL trajectories and places of care. The high percentage of negative PMI reveals the opportunity for an individualised analgesic ladder stepping for better pain control. Also, incorporating non-pharmacological approaches could help improve pain in these patients.

Pain Management Adequacy in Patients With Bone Metastases: A Secondary Analysis From the Palliative Radiotherapy and Inflammation Study Trial

Background

Bone metastases (BMs) are a common complication in patients with cancer, often leading to significant pain that adversely affects quality of life, necessitating effective pain management strategies. This study aims to evaluate the effectiveness of pain management in patients with BMs undergoing palliative radiotherapy and to identify determinants of pain management adequacy.

Methods

We conducted an observational analysis of 560 patients from the Palliative Radiotherapy and Inflammation Study (PRAIS) trial across several European centers, focusing on the Pain Management Index (PMI) for assessing pain management adequacy. Key predictors examined included Karnofsky Performance Status (KPS), treatment setting, primary tumor type, and site of BMs.

Results

Our findings indicate that 19.0% of patients experienced inadequate pain management (PMI < 0). Specifically, patients with KPS ⩾ 90 had a notably lower rate of adequate analgesic therapy (59.3%) compared with those with a KPS < 90 (85.0%). Among outpatients, 23.7% reported inadequate pain management, contrasted with a significantly lower inadequacy rate (3.8%) in palliative care or hospice settings. In addition, in outpatients, pain management adequacy varied with the primary tumor type, showing improved outcomes for patients with lung cancer (89.2%) versus other primary tumors (79.1%). Moreover, in non-outpatients, pain management was less effective for patients receiving radiotherapy on pelvic BMs (89.5%) compared with other sites (95.7%).

Conclusion

Although overall rates of inadequate pain management were lower than seen in previous studies, significant variability exists based on patient health status, care setting, primary tumor type, and site of BMs. These results underscore the need for personalized pain management approaches and highlight specific areas for improvement in outpatient settings and among patients with generally good health but significant pain from BMs.

Exploring pain management in breast cancer: key findings from the ARISE study

Aims

This ARISE study secondary analysis aims to delve into the complexities of pain management in breast cancer patients undergoing radiotherapy (RT) in Italy. It aims to identify and analyze predictive variables for pain management adequacy and establish the relationship between these variables and the effectiveness of pain control.

Materials and methods

This observational study engaged 2,104 participants from 13 Italian RT departments, focusing on 426 breast cancer patients reporting pain. Advanced statistical methods, were employed to identify significant predictive variables for pain management adequacy. Data collection involved a standardized form capturing personal, health-related information, specifics about cancer, pain intensity, and medication. The Pain Management Index (PMI) was used to evaluate pain management adequacy, where negative PMI values indicate inadequate or suboptimal pain management.

Results

The analysis showed that 61.7% of patients experienced inadequate pain management (PMI<0). Factors identified as influencing pain management adequacy included the type of pain, patient age, the objective of RT, and the geographical location of the RT center. Notably, patients undergoing curative RT exhibited a higher incidence of inadequate pain management (PMI<0) compared to those undergoing palliative RT (82.9% versus 31.4%). Geographical variations were evident, with patients treated in northern Italy showing better pain management compared to those in central-southern Italy (72.0% versus 85.6%).

Conclusion

The ARISE study underscores a significant inadequacy in pain management among breast cancer patients undergoing RT in Italy, influenced by a complex interplay of treatment-related, demographic, and regional factors. The study findings emphasize the need for enhanced, personalized pain management strategies and highlight the importance of considering a multifaceted approach.

Preoperative psychological distress and acute postoperative pain among abdominal surgery patients

OBJECTIVE

To analyze preoperative psychological distress symptoms and their association with acute postoperative pain in patients undergoing abdominal surgery.

METHOD

Prospective observational study conducted at a University Hospital in Minas Gerais, Brazil. The sample included 118 patients in the hospital's elective abdominal surgery program. Psychological distress symptoms were assessed using the Hospital Anxiety and Depression Scale (HADS). Pain levels were measured using the numeric verbal scale (NVS, 0-10 points) from admission to discharge from the post-anesthesia care unit. Descriptive statistics and an ordinal regression model were utilized to detect related factors, with a threshold for significance established at p < 0.05. Pain levels at discharge from the post-anesthesia care unit was considered the outcome variable.

FINDINGS

Preoperatively, 50.8 % exhibited symptoms of anxiety (HADS-A ≥ 8) and 16.1 % exhibited symptoms of depression (HADS-D ≥ 8), with 14.4 % presenting both symptoms. The prevalence of pain (NVS >0) in the post-anesthesia care unit was 40.3 %. At admission, 5.8 % of patients reported moderate to severe pain (NVS ≥ 4), increasing to 29.7 % at 60 min and 22.1 % at discharge. Regression analysis showed that anxiety or depression (OR = 4.49, p < 0.01) significantly increased the likelihood of experiencing higher pain levels, which was even greater when both symptoms coexisted (OR = 10.19, p < 0.01). Additionally, older age (OR = 0.94, p < 0.01) and inadequate pain management (OR = 7.67, p < 0.01) were significant predictors of pain levels at discharge.

CONCLUSION

Preoperative psychological distress, particularly the simultaneous presence of anxiety and depressive symptoms, significantly elevates the likelihood of heightened pain intensity in patients undergoing abdominal surgery.

Patients' satisfaction with cancer pain treatment at adult oncologic centers in Northern Ethiopia; a multi-center cross-sectional study

BACKGROUND

Patient satisfaction is an important indicator of the quality of healthcare. Pain is one of the most common symptoms among cancer patients that needs optimal treatment; rather, it compromises the quality of life of patients.

OBJECTIVE

To assess the levels and associated factors of satisfaction with cancer pain treatment among adult patients at cancer centers found in Northern Ethiopia in 2023.

METHODS

After obtaining ethical approval, a multi-center cross-sectional study was conducted at four cancer care centers in northern Ethiopia. The data were collected using an interviewer-administered structured questionnaire that included the Lubeck Medication Satisfaction Questionnaire (LMSQ). The severity of pain was assessed by a numerical rating scale from 0 to 10 with a pain score of 0 = no pain, 1-3 = mild pain, 4-6 = moderate pain, and 7-10 = severe pain Binary logistic regression analysis was employed, and the strength of association was described in an adjusted odds ratio with a 95% confidence interval.

RESULT

A total of 397 cancer patients participated in this study, with a response rate of 98.3%. We found that 70.3% of patients were satisfied with their cancer pain treatment. Being married (AOR = 5.6, CI = 2.6-12, P < 0.001) and being single (never married) (AOR = 3.5, CI = 1.3-9.7, P = 0.017) as compared to divorced, receiving adequate pain management (AOR = 2.4, CI = 1.1-5.3, P = 0.03) as compared to those who didn't receive it, and having lower pain severity (AOR = 2.6, CI = 1.5-4.8, P < 0.001) as compared to those who had higher level of pain severity were found to be associated with satisfaction with cancer pain treatment.

CONCLUSION

The majority of cancer patients were satisfied with cancer pain treatment. Being married, being single (never married), lower pain severity, and receiving adequate pain management were found to be associated with satisfaction with cancer pain treatment. It would be better to enhance the use of multimodal analgesia in combination with strong opioids to ensure adequate pain management and lower pain severity scores.

Further Clarification of Pain Management Complexity in Radiotherapy: Insights from Modern Statistical Approaches

BACKGROUND

The primary objective of this study was to assess the adequacy of analgesic care in radiotherapy (RT) patients, with a secondary objective to identify predictive variables associated with pain management adequacy using a modern statistical approach, integrating the Least Absolute Shrinkage and Selection Operator (LASSO) algorithm and the Classification and Regression Tree (CART) analysis.

METHODS

This observational, multicenter cohort study involved 1387 patients reporting pain or taking analgesic drugs from 13 RT departments in Italy. The Pain Management Index (PMI) served as the measure for pain control adequacy, with a PMI score < 0 indicating suboptimal management. Patient demographics, clinical status, and treatment-related factors were examined to discern the predictors of pain management adequacy.

RESULTS

Among the analyzed cohort, 46.1% reported inadequately managed pain. Non-cancer pain origin, breast cancer diagnosis, higher ECOG Performance Status scores, younger patient age, early assessment phase, and curative treatment intent emerged as significant determinants of negative PMI from the LASSO analysis. Notably, pain management was observed to improve as RT progressed, with a greater discrepancy between cancer (33.2% with PMI < 0) and non-cancer pain (73.1% with PMI < 0). Breast cancer patients under 70 years of age with non-cancer pain had the highest rate of negative PMI at 86.5%, highlighting a potential deficiency in managing benign pain in younger patients.

CONCLUSIONS

The study underscores the dynamic nature of pain management during RT, suggesting improvements over the treatment course yet revealing specific challenges in non-cancer pain management, particularly among younger breast cancer patients. The use of advanced statistical techniques for analysis stresses the importance of a multifaceted approach to pain management, one that incorporates both cancer and non-cancer pain considerations to ensure a holistic and improved quality of oncological care.

Adequacy of Pain Management in Patients Referred for Radiation Therapy: A Subanalysis of the Multicenter ARISE-1 Study

BACKGROUND

Pain is a prevalent symptom among cancer patients, and its management is crucial for improving their quality of life. However, pain management in cancer patients referred to radiotherapy (RT) departments is often inadequate, and limited research has been conducted on this specific population. This study aimed to assess the adequacy and effectiveness of pain management when patients are referred for RT. Moreover, we explored potential predictors of adequate pain management.

METHODS

This observational, prospective, multicenter cohort study included cancer patients aged 18 years or older who were referred to RT departments. A pain management assessment was conducted using the Pain Management Index (PMI), calculated by subtracting the pain score from the analgesic score (PMI < 0 indicated inadequate pain management). Univariate and multivariate analyses were performed to identify predictors of adequate pain management.

RESULTS

A total of 1042 cancer outpatients were included in the study. The analysis revealed that 42.9% of patients with pain did not receive adequate pain management based on PMI values. Among patients with pain or taking analgesics and referred to palliative or curative RT, 72% and 75% had inadequate or ineffective analgesic therapy, respectively. The odds of receiving adequate pain management (PMI ≥ 0) were higher in patients undergoing palliative RT (OR 2.52; p < 0.001), with worse ECOG-PS scores of 2, 3 and 4 (OR 1.63, 2.23, 5.31, respectively; p: 0.017, 0.002, 0.009, respectively) compared to a score of 1 for those with cancer-related pain (OR 0.38; p < 0.001), and treated in northern Italy compared to central and southern of Italy (OR 0.25, 0.42, respectively; p < 0.001).

CONCLUSIONS

In this study, a substantial proportion of cancer patients referred to RT departments did not receive adequate pain management. Educational and organizational strategies are necessary to address the inadequate pain management observed in this population. Moreover, increasing the attention paid to non-cancer pain and an earlier referral of patients for palliative RT in the course of the disease may improve pain response and treatment outcomes.

Cancer-related post-treatment pain and its impact on treatment satisfaction with medication in women with breast cancer: a cross-sectional study from Palestine

BACKGROUND

Pain after therapy is an important clinical problem in patients with breast cancer. Unfortunately, cancer patients have a lower quality of life due to inadequate treatment of posttreatment pain; therefore, improving medication management plans and palliative care has become one of the most important targets of cancer therapy. Therefore, the current study aimed to examine the impact of posttreatment pain on medication satisfaction in patients with various stages of breast cancer in Palestine.

METHODS

A cross-sectional analytical study was conducted et al.-Watani Hospital and An-Najah National University Hospital in the Nablus area. Using the Brief Pain Inventory (BPI), the intensity and interference of pain were evaluated. In addition, patients' satisfaction with cancer management medications was measured using the Treatment Satisfaction Questionnaire for Medication (TSQM).

RESULTS

Two hundred fifty-four patients were included in this study. All were women, with a mean ± SD age of 53.1 ± 10.7 years. The median score for pain severity was 7.0. Pain in the lower extremities was the most reported location. There was a negative association between the global satisfaction domain and the presence of posttreatment pain (p < 0.001). Furthermore, significant differences and negative correlations were found between global satisfaction and posttreatment pain on the day of the interview (p = 0.001), pain medication (p < 0.001), paracetamol use (p < 0.001), and the presence of side effects (p = 0.003). There were significant negative correlations (p < 0.05) between pain severity and interference with effectiveness (r = -0.258, -0.319, respectively), side effects (r = -0.414, -0.514, respectively), convenience (r = -0.274, -0.307, respectively), and global satisfaction domain scores (r = -0.293, -0.287, respectively). Exposure to chemotherapy was the only significant positive correlation with global satisfaction (p = 0.007). The regression analysis results indicated an independent association between chemotherapy use and a higher global satisfaction score (p = 0.011).

CONCLUSIONS

Patients with posttreatment pain, side effects, and greater interference of pain with their functioning had lower satisfaction scores. Therefore, better management of their treatment medications, side effects, and pain medications is recommended to enhance their satisfaction and quality of life. Several aspects of palliative care should be organized to improve the patient's satisfaction and quality of life in addition to conducting longitudinal studies to evaluate the pain and satisfaction of different types of cancers.

Adequacy of Pain Treatment in Radiotherapy Departments: Results of a Multicenter Study on 2104 Patients (Arise)

Aim: The frequent inadequacy of pain management in cancer patients is well known. Moreover, the quality of analgesic treatment in patients treated with radiotherapy (RT) has only been rarely assessed. In order to study the latter topic, we conducted a multicenter, observational and prospective study based on the Pain Management Index (PMI) in RT Italian departments. Methods: We collected data on age, gender, tumor site and stage, performance status, treatment aim, and pain (type: CP—cancer pain, NCP—non-cancer pain, MP—mixed pain; intensity: NRS: Numeric Rating Scale). Furthermore, we analyzed the impact on PMI on these parameters, and we defined a pain score with values from 0 (NRS: 0, no pain) to 3 (NRS: 7−10: intense pain) and an analgesic score from 0 (pain medication not taken) to 3 (strong opioids). By subtracting the pain score from the analgesic score, we obtained the PMI value, considering cases with values < 0 as inadequate analgesic prescriptions. The Ethics Committees of the participating centers approved the study (ARISE-1 study). Results: Two thousand one hundred four non-selected outpatients with cancer and aged 18 years or older were enrolled in 13 RT departments. RT had curative and palliative intent in 62.4% and 37.6% patients, respectively. Tumor stage was non-metastatic in 57.3% and metastatic in 42.7% of subjects, respectively. Pain affected 1417 patients (CP: 49.5%, NCP: 32.0%; MP: 18.5%). PMI was < 0 in 45.0% of patients with pain. At multivariable analysis, inadequate pain management was significantly correlated with curative RT aim, ECOG performance status = 1 (versus both ECOG-PS3 and ECOG- PS4), breast cancer, non-cancer pain, and Central and South Italy RT Departments (versus Northern Italy).Conclusions: Pain management was less adequate in patients with more favorable clinical condition and stage. Educational and organizational strategies are needed in RT departments to reduce the non-negligible percentage of patients with inadequate analgesic therapy.

Epidemiology of Pain Among Patients with Solid Metastatic Cancer During the Last Year of Life

Background

Despite medical advancements, pain is a major source of suffering at the end of life for patients with a solid metastatic cancer. We aimed to assess the trajectory of pain prevalence, severity, interference, and inadequacy of analgesia during the last year of life.

Methods

We analysed data from the last year of life of 345 decedents from a prospective cohort study of 600 patients with a solid metastatic cancer in Singapore. Patients were surveyed every 3 months and their pain outcomes (prevalence, severity, and interference) and inadequacy of analgesia were analysed. We used mixed-effects regressions to assess the association of pain outcomes with patients’ time from death, demographics, and planned or unplanned hospitalisations.

Results

Prevalence of pain was higher in the last 2 months (65%) compared to 11 to 12 months (41%) before death. Pain severity and interference scores (mean ± SD) were also higher in the last month (severity: 2.5±2.6; interference: 2.6±3.0) compared to 12 months before death (severity: 1.4±2.0; interference: 1.4±2.0). At any time during the last year of life, 38% of the patients were prescribed non-steroidal anti-inflammatory drugs, 11% were prescribed weak-opioids and 29% were prescribed strong opioids. These analgesics were prescribed through either oral, topical or injectable route. Pain outcomes were significantly worse (p-value<0.05) for younger patients, those with higher education, and more financial difficulties, while interference was higher after an unplanned hospitalisation in the last month. Females reported higher pain severity score during their last year of life compared to males. For patients reporting moderate to severe pain, inadequacy of analgesia was lower in the last 2 months (43%) compared to 11 to 12 months before death (83%).

Conclusion

Findings highlight the need for greater attention in monitoring and treatment of pain even earlier in the disease trajectory, and increased attention to patients discharged from an unplanned hospitalisation.

End-of-life cancer patients' total pain: the necessity to supplement pharmacology with psycho-socio-spiritual treatments

Aim: To analyze pain considering its different bio-psycho-social-spiritual manifestations and to assess the effectiveness of the analgesic treatments in end-of-life cancer patients. Materials & methods: The study was cross-sectional. A total of 376 end-of-life cancer inpatients participated in the research. Their socio-demographic and clinical data were collected and, during the first psychological consultancy, they filled in a set of validated rating scales assessing pain, anxiety, depression and quality of life. Results: The results show that physical pain was well managed for almost all patients. Nevertheless, the majority showed clinically significant levels of psychological distress. Conclusion: Treating pain means caring for all its possible manifestations including psychological symptoms and reduced wellbeing. Thus, integrating pharmacological treatment with psycho-socio-spiritual interventions, in other words, psychological, social and spiritual support, could be effective and desirable.

A living systematic review to assess the analgesic undertreatment in cancer patients

This living, systematic review aims to provide an updated summary of the available evidence on pain undertreatment prevalence in patients with cancer; correlations with some potential determinants and confounders were also carried out. We updated a systematic review published in 2014, including observational and experimental studies reporting the use of the pain management index (PMI) in adults with cancer and pain, from 2014 to 2020. We conducted searches in PubMed/MEDLINE, Embase, and Google Scholar. We performed univariate and multivariable regression analyses to describe the relationship between PMI and a list of potential explanatory variables. Twenty new papers were identified, yielding a total sample size of 66 studies. The proportion of patients classified as undertreated according to the year of study publication shows a higher decrease from 1994 to 2013 (-13% as relative change) than the most recent years 2014-2020 (-11%). The quality of the included studies has increased over the years (from 80% to 93%). At the multivariable analysis, a statistically significant relationship was confirmed between undertreatment and the year of the publication of the study and with a low-medium economic level of the countries where the studies were conducted. Despite the improvement when compared to the period 1994-2000,-still about 40% of the cases identified received an analgesic treatment inadequate to the intensity of pain, according to the PMI. Despite its intrinsic limitations, PMI continues to be widely used and it could allow a continuous monitoring of pain management across a different mix of studies and patients.