Vital signs: Valid indicators to assess pain in intensive care unit patients? An observational, descriptive study

Assessing pain in persons with opioid use disorder: Approaches, techniques and special considerations

Pain and opioid use disorder (OUD) are inextricably linked, as the former can be a risk factor for the development of the latter, and over a third of persons with OUD suffer concomitant chronic pain. Assessing pain among people with OUD is challenging, because ongoing opioid use brings changes in pain responses and most pain assessment tools have not been validated for this population. In this narrative review, we discuss the fundamentals of pain assessment for populations with OUD. First, we describe the biological, psychological and social aspects of the pain experience among people with OUD, as well as how opioid-related phenomena may contribute to the pain experience in this population. We then review methods to assess pain, including (1) traditional self-reported methods, such visual analogue scales and structured questionnaires; (2) behavioural observations and physiological indicators; (3) and laboratory-based approaches, such as quantitative sensory testing. These methods are considered from a perspective that encompasses both pain and OUD. Finally, we discuss strategies for improving pain assessment in persons with OUD and implications for future research, including educational strategies for multidisciplinary teams. We highlight the substantial gaps that persist in this literature, particularly regarding the applicability of current pain assessment methods to persons with OUD, as well as the generalizability of the existing results from adjacent populations on chronic opioid therapy but without OUD. As research linking pain and OUD evolves, considering the needs of diverse populations with complex psychosocial backgrounds, clinicians will be better equipped to reduce these gaps.

Factors related to nurses' beliefs regarding pain assessment in people living with dementia

AIM

To evaluate registered nurses' beliefs and related factors regarding pain assessment in people living with dementia.

DESIGN

A descriptive cross-sectional survey was conducted between July 2022 and April 2023.

METHODS

An online survey comprised of demographics, knowledge scale, and beliefs scale relating to pain assessment in dementia was distributed to registered nurses (RNs) caring for people living with dementia in Australia.

RESULTS

RNs (N = 131) completed the survey. Most respondents were females (87.0%) and self-identified as Caucasian (60.3%). The mean beliefs score was 72.60 (±6.39) out of a maximum possible score of 95. RNs' beliefs about pain assessment varied based on their education, dementia pain assessment knowledge, nursing experience, and ethnicity. Hierarchical multiple regression analysis revealed factors significantly related to the beliefs score (i.e. education and dementia pain assessment knowledge).

CONCLUSION

The relationship between education and knowledge, and the beliefs score indicates the potential to improve RNs' knowledge and overcome their erroneous beliefs about pain assessment in dementia.

IMPLICATIONS FOR THE PROFESSION AND/OR PATIENT CARE

Education and training in assessing pain in people living with dementia should be tailored to overcome RNs' misconceived beliefs. These programmes should be integrated into continuous learning programmes.

IMPACT

Some RNs' beliefs about pain assessment in dementia were not evidence-based, and knowledge and educational status were the strongest factors related to RNs' beliefs. RNs' erroneous beliefs about pain assessment in dementia need to be addressed to improve pain assessment and management. Researchers should explore the potential of educational interventions to overcome RNs' misconceived beliefs about pain assessment in dementia.

REPORTING METHOD

This study was reported adhering to the Strengthening the Reporting of Observational Studies in Epidemiology checklist.

PATIENT OR PUBLIC CONTRIBUTION

RNs caring for people living with dementia participated as survey respondents. Additionally, RNs were involved in the pre-testing of the study's survey instrument.

Inpatient pain assessment and decision-making in internal medicine and general surgery residents: A qualitative analysis

Background

Understanding physician approaches to pain treatment is a critical component of opioid and analgesic stewardship. Practice patterns learned in residency often persist longitudinally into practice.

Objective

This study sought to identify salient factors and themes in how resident physicians assess and manage pain.

Methods

Video-recorded focus groups of internal medicine and general surgery residents were conducted via videoconferencing software. Data were analyzed using a ground theory approach and constant comparative method to identify themes and subthemes. Focus groups occurred in September and October 2020.

Results

10 focus groups including 35 subjects were conducted. Four general themes emerged: (1) Assessment considerations; (2) Education & Expectations; (3) Systems Factors; and (4) Management considerations. Participants indicated that while it is important to treat pain, its inherently subjective nature makes it difficult to objectively quantify it. The 0-10 numeric rating scale was problematic and infrequently utilized. Patient expectations of no pain following procedures was viewed as particularly challenging. The absence of formal best practices to guide pain assessment and management was noted in every group. Management approaches overall very highly variable, often relying on word-of-mouth relay of the preferences of specific attending physicians.

Conclusions

Pain is highly nuanced and resident physicians struggle to balance pain's subjectivity with a desire to quantify and appropriately treat it. The 0-10 numeric rating pain scale, though ubiquitous, is problematic. Priority areas of improvement identified include education for both patients and physicians, functional pain scales, and expansion of existing effective resources like the nursing pain team.

Development of an Acute Pain Assessment Tool for Patients in Post-anesthesia Care Units

BACKGROUND

Post-operative pain is a common form of acute pain. Objective pain assessment in post-anesthesia care units after surgery is useful regardless of the patient's condition.

AIMS

This study aimed to develop and evaluate an acute pain assessment tool for patients in post-anesthesia care units.

DESIGN

This was a cross-sectional observational study comprising two stages: scale development and psychometric evaluation.

SETTINGS

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PARTICIPANTS/SUBJECTS

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METHODS

Scale items were developed based on a literature review and content validity by experts. The validity and interrater reliability of the pain scale were evaluated using data from 218 patients admitted to the post-anesthesia care unit at a university hospital. A receiver operating characteristic curve was used to identify the sensitivity and specificity for determining the cutoff point for acute pain.

RESULTS

We developed an objective acute pain scale, called the APA5, which ranges from 0-10 and comprises behavioral (facial and verbal expressions and body movement) and physiological (changes in heart rate and blood pressure) responses. The APA5 is valid and reliable for assessing acute pain in the recovery room. Sensitivity and specificity were acceptable when the cutoff was 2 out of 10 points.

CONCLUSIONS

The APA5 is an easy and simple tool for measuring pain in patients in post-anesthesia care units who have difficulties with self-reporting.

Diurnal Pain Classification in Critically Ill Patients using Machine Learning on Accelerometry and Analgesic Data

Quantifying pain in patients admitted to intensive care units (ICUs) is challenging due to the increased prevalence of communication barriers in this patient population. Previous research has posited a positive correlation between pain and physical activity in critically ill patients. In this study, we advance this hypothesis by building machine learning classifiers to examine the ability of accelerometer data collected from daily wearables to predict self-reported pain levels experienced by patients in the ICU. We trained multiple Machine Learning (ML) models, including Logistic Regression, CatBoost, and XG-Boost, on statistical features extracted from the accelerometer data combined with previous pain measurements and patient demographics. Following previous studies that showed a change in pain sensitivity in ICU patients at night, we performed the task of pain classification separately for daytime and nighttime pain reports. In the pain versus no-pain classification setting, logistic regression gave the best classifier in daytime (AUC: 0.72, F1-score: 0.72), and CatBoost gave the best classifier at nighttime (AUC: 0.82, F1-score: 0.82). Performance of logistic regression dropped to 0.61 AUC, 0.62 F1-score (mild vs. moderate pain, nighttime), and CatBoost's performance was similarly affected with 0.61 AUC, 0.60 F1-score (moderate vs. severe pain, daytime). The inclusion of analgesic information benefited the classification between moderate and severe pain. SHAP analysis was conducted to find the most significant features in each setting. It assigned the highest importance to accelerometer-related features on all evaluated settings but also showed the contribution of the other features such as age and medications in specific contexts. In conclusion, accelerometer data combined with patient demographics and previous pain measurements can be used to screen painful from painless episodes in the ICU and can be combined with analgesic information to provide moderate classification between painful episodes of different severities.

Nurses' assessment and management practices of pain among intensive care patients in King Khalid Hospital, Kharj, Riyadh

Background

Pain is a disagreeable combination of sensory and emotional sensations. Employing behavioral pain assessment tools is strongly associated with improved identification of pain.

Purpose

The main purpose of the study is to investigate Nurses' Assessment and Management Practices of Pain among Intensive Care Patients in King Khalid Hospital, Kharj, Riyadh.

Materials and methods

A self-administered questionnaire was employed in a descriptive cross-sectional study. The study focused on nurses employed in the intensive care unit at King Khalid Hospital in Al-Kharj Province. The researchers utilized convenience sampling to recruit participants. Out of the total 48 nurses approached 45 of them provided responses, leading to a response rate of 94%. The Critically Ill questionnaire was utilized to gather information regarding the treatment and evaluation of pain in patients who were in critical condition. Descriptive statistics and inferential statistics were employed to analyze the collected data.

Principal results

it was found that 88% of them utilized instruments to evaluate pain in patients who could express themselves. Among these instruments, the numeric rating scale was the most commonly employed. Furthermore, 77% of the nurses (35 in total) used a pain assessment tool for patients who were unable to communicate, with the Adult Nonverbal Pain Scale being the most frequently used tool in this case. The nurses' perception of the significance of pain assessment was positively associated with the regular utilization of pain assessment tools. Additionally, the nurses considered the use of pain assessment tools with patients who could communicate as more important compared to using such tools with patients who could not communicate.

Conclusions

Most ICU nurses utilized nurses' pain assessment instruments to assess the discomfort levels of both patients who could communicate and those who couldn't express themselves effectively. By employing such tools, nurses can improve patient outcomes, ensure effective pain management, and demonstrate a high standard of professional care.

Non-Invasive Objective Markers to Measure Pain: A Direction to Develop a Pain Device - A Narrative Review

Objective

To review the literature regarding non-invasive objective measurements of pain. Measuring pain is of uttermost importance, but it can be an inconvenient task, especially in terms of the interpretation of patient's information. Reiterating, there is no "standard" that provides the physician with a method to objectively quantify this problem of patient's pain. For assessing the pain, physician relies solely on unidimensional assessment tools or questionnaire-based pain assessment. Although pain is a subjective experience of the patient, but there is a need to measure pain sometimes in the individuals who cannot communicate their quality and severity of pain.

Material and Methods

The articles from PubMed and Google Scholar without any year and age limit were searched in the current narrative review. A total of 16 markers were searched and their relation to pain was studied.

Results

Studies have shown that these markers change in relation to pain and it can be considered a valuable tool for pain measurement but there are multiple factors like psychological and emotional factors which affect these markers.

Conclusion

There is lack of evidence to show which marker can be used for measuring pain accurately. This narrative review is an attempt to look into the various pain-related markers that can be used and it calls for further studies including clinical trials with different diseases and taking into accounts different factors affecting pain to give an accurate measurement of pain.

Cultural Influence on Nurses' Pain Observations Related to Dementia: An Integrative Review

BACKGROUND

Nurses play a pivotal role in pain observation in people living with dementia. However, currently, there is little understanding of the influence culture may have on the way nurses observe pain experienced by people living with dementia.

AIM

This review explores the influence of culture on nurses... pain observations experienced by people living with dementia.

SETTINGS

Studies were included regardless of the setting (e.g., acute medical care, long-term care, community).

DESIGN

An integrative review.

PARTICIPANTS/SUBJECTS

PubMed, Medline, Psychological Information Database, Cochrane Library, Scopus, Web of Science, Cumulative Index of Nursing and Allied Health Literature, and ProQuest were included in the search.

METHODS

Electronic databases were searched using synonyms for "dementia," "nurse," "culture," and "pain observation." The review included ten primary research papers following the Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines.

RESULTS

Nurses reported that pain observation in people living with dementia is challenging. Four themes were identified by data synthesis: (1) using behaviors for pain observation; (2) information from carers for pain observation; (3) pain assessment tools for pain observation; and (4) role of knowledge, experience, and intuition in pain observation.

CONCLUSIONS

There is a limited understanding of the role of culture on nurses' pain observations. However, nurses take a multifaceted approach to observing pain using behaviors, information from carers, pain assessment tools, and their knowledge, experience, and intuition.

The Validity of Vital Signs for Pain Assessment in critically Ill Adults: A Narrative Review

OBJECTIVES

Pain assessment in the intensive care unit (ICU) is challenging because many patients are unable to self-report or exhibit pain-related behaviors. In such situations, vital signs (VS) through continuous monitoring are alternative cues for pain assessment. This review aimed to describe the reliability and validity of VS for ICU pain assessment.

DESIGN

Narrative review of the literature.

DATA SOURCES

Medline, Embase, CINAHL, Cochrane.

REVIEW/ANALYSIS METHODS

A narrative review was conducted with a comprehensive search in four databases. Search terms included VS, pain assessment, and ICU.

RESULTS

Out of 1,359 results, 30 studies from 17 countries were included. Heart rate, blood pressure, and respiratory rate were most used for ICU pain assessment. Assessments were performed at rest before procedures, during nociceptive and non-nociceptive procedures, and after procedures. Increases in respiratory rate were clinically significant by more than 25% during nociceptive procedures (e.g., endotracheal suctioning, turning) compared with rest/pre-procedures in five studies. Correlations of VS with self-reported pain (reference standard measure) and behavioral pain scores (alternative measure) were absent or weak.

CONCLUSIONS

VS are not valid indicators for ICU pain assessment. Increases of respiratory rate may be a cue for the detection of pain. However, fluctuations in respiratory rate can be influenced by opioids or controlled ventilation mode. Our results dissuade the use of VS for pain assessment because of the lack of association with ICU pain reference standards. Other physiologic measures of pain in critically ill adults should be explored.

Changes in Physiological Indices Before and After Nursing Care of Postoperative Patients With Esophageal Cancer in the ICU

Introduction

Various stressors have been identified in patients in the intensive care unit (ICU), including postoperative pain, ventilatory management, and nursing care. However, sedated patients are less responsive, and nurses have difficulty capturing their stressors.

Objective

To investigate patient stress caused by nursing care performed in the ICU on sedated patients based on changes in physiological indices.

Methods

We observed nursing care performed on patients with postoperative esophageal cancer under sedation in the ICU. This included endotracheal suctioning and turning, the time required for the care, and the patients' behavioral responses. Information on arousal levels, autonomic nervous system indices, and vital signs were also obtained. The changes in indicators before and after care were then compared and analyzed.

Results

There were 14 patients in the study. The mean age of the patients was 68 years. Ninety-nine scenes of nursing care were observed, and in six of these, additional bolus sedation was administered because of the patient's significant body movements. In endotracheal suctioning, no significant changes were observed in all indicators. In turning, vital signs changed significantly, and when both were continued, all indicators changed significantly.

Conclusion

Our study found that different types and combinations of nursing care may cause different stresses to the patients. Moreover, the autonomic nervous system indices may be more likely to react to stresses in a variety of nursing care, while arousal levels may be more likely to react to burdensome stresses. If the characteristics of these physiological indicators can be understood and effectively utilized during care, it may be possible to better identify and reduce patient stress during sedation management.

ASSESSMENT OF PROCEDURAL PAIN IN PATIENTS WITH COVID-19 IN THE INTENSIVE CARE UNIT

Aim

The purpose of the study was to assess the level of procedural pain in patients treated in the COVID-19 intensive care unit, in a tertiary university hospital.

Method

We performed the procedural pain assessment of COVID-19 patients in this study, and 162 (93.6 %) of 173 hospitalized patients assessed during this period. While pain was assessed before, during, and at the 20th minute after endotracheal aspiration, wound care, and position change, which are procedural patient practices, the pain was assessed before, during, and up to the fourth hour after prone positioning, high-flow oxygen therapy (HFOT), and the non-invasive mechanical ventilation (NIMV) procedure. The Numerical Pain Scale was used for conscious patients in pain assessment, while the Behavioral Pain Scale and the Richmond Agitation-Sedation Scale were used for unconscious patients.

Results

Patients who underwent endotracheal aspiration, wound care, and positioning had higher pain levels during procedure than other time points. Patients in the prone position with HFOT and NIMV applied had the highest pain scores at fourth hour after procedure; this increase was statistically significant (p = .000, p < .05).

Conclusions

The study found that COVID-19 patients in the ICU had pain due to procedural practices and that the level of pain during the procedures was higher because endotracheal aspiration, wound care, and positioning were all short-term procedures. Moreover, prone positioning was found to be associated with pressure-related tissue damage, and patients' pain levels increased with the increasing duration of HFOT and NIMV procedure.

Demographic and clinical factors associated with variations in opioid administration using conscious sedation during HDR brachytherapy for cervical cancer

PURPOSE/OBJECTIVES To examine patient characteristics that predispose to higher opioid administration during tandem and ovoid (T&O) high-dose rate (HDR) brachytherapy. METHODS A single-institution retrospective review was performed on patients who underwent brachytherapy for cervical cancer. Patients were included if they received at least one fraction of HDR T&O brachytherapy with analgesia administration recorded in the Medication Administration Record. Fentanyl dose was dichotomized as "low" (mean <125 μg per fraction), or "high" (mean ≥ 125 μg per fraction). Descriptive statistics and multiple logistic regression analysis were performed comparing mean opioid dose per fraction with demographic and clinical information. RESULTS From July 2014 through May 2020, 113 patients underwent 531 T&O HDR brachytherapy fractions with oral benzodiazepine and intravenous opioid fentanyl for conscious sedation. The median opioid dose per fraction was 100 μg fentanyl (range 0-250 μg). Using multiple logistic regression analysis, younger age (OR 1.071, p = 0.002) and higher BMI (OR 1.091, p = 0.019) were associated with increased opioid administration during brachytherapy. Black women received less opioid during brachytherapy when compared to White women (OR 0.296, p = 0.047). FIGO stage, ECOG score, smoking status, prior narcotic use, prior illicit drug use, parity, prior cervical procedure, Smit sleeve placement, and distance to treatment center were not associated with high opioid dose. CONCLUSION Cervical cancer patients who are younger or have higher BMI receive more narcotic analgesia during HDR brachytherapy whereas Black women received less narcotic analgesia, irrespective of age and BMI. This underscores the immediate need to address how pain is assessed and managed during brachytherapy.

Approaching acute pain in emergency settings: European Society for Emergency Medicine (EUSEM) guidelines-part 1: assessment

Pain management is a vital component of patient care, particularly in the emergency setting. Pain can hinder the opportunities to treat and manage pain-causing conditions and remains one of the primary reasons patients seek emergency medical care, yet despite this, pain often remains under-acknowledged, under-assessed and undertreated. Despite the importance of effective management of acute pain, there are currently no well-defined emergency medicine guidelines at a European level to support healthcare professionals in achieving this goal. The European Society for Emergency Medicine (EUSEM) identified this as a significant unmet requirement, for improving day-to-day patient management and for providing guidance to trainees and non-emergency medicine physicians. Under the auspices of EUSEM, a programme-the European Pain Initiative-was launched with the aim of providing information, advice and guidance on pain management in pre-hospital and emergency department settings. Search terms were developed to search MEDLINE, Cochrane database, Google Scholar and EMBASE online databases to return English language articles published in the last 10 years. A working package of reference materials was evaluated against inclusion and exclusion criteria and levels of evidence ascribed. A short survey was developed by the European Pain Initiative Steering Committee for completion by EUSEM members to evaluate actual clinical practice. A working document of > 800 publications was identified for further review and evaluation against agreed criteria. Some further publications were included by the Steering Committee to explore older literature for long-established analgesics, or newly emergent literature that was considered important for inclusion but was identified as the guideline development was underway. This article provides the methodology used to inform the guidelines, including survey results of EUSEM members on assessment and treatment of acute pain. A companion manuscript in this issue presents an evidence-based review and recommendations for individualised evaluation of acute pain in patients in emergency settings.