Patient-Reported Outcome Measures in Lymphedema: A Systematic Review and COSMIN Analysis

Current diagnostic and quantitative techniques in the field of lymphedema management: a critical review

Lymphedema evaluation entails multifaceted considerations for which options continue to evolve and emerge. This paper provides a critical review of the current status of diagnostic and quantitative measures for lymphedema, from traditional and novel bedside assessment tools for volumetric and fluid assessment, to advanced imaging modalities. Modalities are contrasted with regard to empirical support and feasibility of clinical implementation. The manuscript proposes a grid framework for comparing the ability of each modality to quantify specific lymphedema characteristics, including distribution, dysmorphism, tissue composition and fluid content, lymphatic anatomy and function, metaplasia, clinical symptoms, and quality of life and function. This review additionally applies a similar framework approach to consider how well assessment tools support important clinical needs, including: (1) screening, (2) diagnosis and differential diagnosis, (3) individualization of treatment, and (4) monitoring treatment response. The framework highlights which clinical needs are served by an abundance of assessment tools and identifies others that have problematically few. The framework clarifies which tools have greater or lesser empirical support. The framework is designed to assist stakeholders in selecting appropriate diagnostic and surveillance modalities, gauging levels of confidence when applying tools to specific clinical needs, elucidating overarching patterns of diagnostic and quantitative strengths and weaknesses, and informing future investigation.

Personal recovery self-report outcome measures in serious mental illness: A systematic review of measurement properties

BACKGROUND

Personal recovery represents a paradigm shift in mental healthcare. Validated self-report outcome measures (PROMs) are needed to facilitate the transformation towards recovery-oriented practices and services. Objectives were to identify published measures and analyze their measurement properties using a standardized methodology.

METHODS

Following the COSMIN guidelines, we conducted a systematic review of personal recovery PROMs in serious mental illness. The MEDLINE, PMC, PsycINFO, PsycARTICLES, PBSC and Scopus electronic databases were searched for articles published between May 2012 and February 2024. Full-text articles from a previous systematic review were also examined.

RESULTS

91 studies were included in the review, describing 25 PROMs. Ten of them had not been identified in previous reviews. Quality of evidence was globally poor for most PROM measurement properties. Very little evidence was found for cross-cultural validity, measurement invariance, measurement error and criterion validity. The Recovery Assessment Scale and Questionnaire about the Process of Recovery showed the strongest evidence for sufficient psychometric data on a wide range of measurement properties.

CONCLUSIONS

Several personal recovery measures are now available. While research is still needed to enhance their validity on some psychometric properties, the current tools appear sufficient to cover most research and clinical needs.

Iterative qualitative approach to establishing content validation of a patient-reported outcome measure for arm lymphedema: the LYMPH-Q Upper Extremity Module

BACKGROUND

Breast cancer-related lymphedema (BRCL) is one of the most common causes of upper extremity (UE) lymphedema in developed nations and substantially impacts health-related quality of life. To advance our understanding of the epidemiology and treatment of BRCL, rigorously developed and validated patient-reported outcome measures (PROMs) are needed. This study aimed to demonstrate the iterative content validity of a modular UE lymphedema-specific PROM called the LYMPH-Q UE module.

METHODS

A multi-step iterative qualitative approach was used. Semi-structured interview data from in-depth qualitative interviews with adult women (18 years and older) with BCRL were used to develop the first set of the LYMPH-Q UE scales. The content validity of these scales was demonstrated with patient and clinician feedback. Over the course of cognitive debriefing interviews, additional concepts of lymphedema worry and impact on work were identified as missing from the LYMPH-Q UE module. Subsequently, two new qualitative studies (a focus group and in-depth concept elicitation interviews with patients) were conducted, and two new scales were developed to measure lymphedema worry and impact on work life and their content validity was demonstrated.

RESULTS

Qualitative data from in-depth and cognitive interviews with 15 (age 40-74 years) and 16 (age 38-74 years) women with BRCL, respectively, and feedback from 12 clinical experts, were used to develop and demonstrate the content validity of six LYMPH-Q UE scales measuring symptoms, function, appearance, psychological, information, and arm sleeve. Additionally, data from in-depth interviews with 12 (age 35-72 years) women with UE lymphedema and four focus groups (n = 16 women; age 35-74 years) was used to develop and assess the content validity of two new LYMPH-Q UE scales measuring lymphedema worry and impact on work life. The content validity of the previously established six scales was also demonstrated in these subsequent qualitative studies.

CONCLUSION

The LYMPH-Q UE is a modular PROM developed using international guidelines for PROM development and can be used in clinical practice, research, and quality improvement to enhance patient-centered shared decision-making. This study's innovative and iterative approach to content validation demonstrates that the LYMPH-Q UE is a comprehensive measure that includes important concepts relevant to patients with UE lymphedema.

Development of a core set of outcome measures to be applied toward breast cancer-related lymphedema core outcome domains

PURPOSE

For breast cancer survivors (BCS) living with breast cancer-related lymphedema (BCRL), what outcome measures (OMs) are recommended to be used to measure standardized outcome domains to fully assess the burden of the disease and efficacy of interventions? An integral component of a standardized core outcome set (COS) are the OMs used to measure the COS.

METHODS

A supplemental online survey was linked to a Delphi study investigating a COS for BCRL. OMs were limited to a maximum of 10 options for each outcome domain (OD). There were 14 ODs corresponding to the International Classification of Functioning, Disability, and Health (ICF) framework and respondents rated the OMs with a Likert level of recommendation. The feasibility of the listed OMs was also investigated for most outpatient, inpatient, and research settings.

RESULTS

This study identified 27 standardized OMs with a few ODs having 2-3 highly recommended OMs for proper measurement. A few of the recommended OMs have limitations with reliability due to being semi-quantitative measures requiring the interpretation of the rater.

CONCLUSION

Narrowing the choices of OMs to 27 highly recommended by BCRL experts may reduce selective reporting, inconsistency in clinical use, and variability of reporting across interdisciplinary healthcare fields which manage or research BCRL. There is a need for valid, reliable, and feasible OMs that measure tissue consistency. Measures of upper extremity activity and motor control need further research in the BCS with BCRL population.

Lymphovenous Bypass for Immediate Lymphatic Reconstruction in Breast Cancer Patients Undergoing Axillary Lymph Node Dissection: Minimizing the Risk of Upper Extremity Lymphedema

BACKGROUND

 Studies have shown a significant reduction in breast cancer-related lymphedema (BCRL) rates in patients undergoing complete axillary lymph node dissection (cALND) combined with immediate lymphatic reconstruction (ILR) using lymphovenous bypass (LVB).The purpose of this study was to determine if ILR with LVB at the time of cALND results in a decreased incidence of BCRL and its impact on patient quality of life (QOL).

METHODS

 In this prospective cohort study, patients ≥ 18 years requiring cALND underwent ILR from 2019 to 2021. The primary outcome was bilateral upper limb volumes measured by Brørson's truncated cone formula and the Pero-System (3D Körper Scanner). The secondary outcome was QOL measured by the Lymphedema Quality of Life (LYMQOL) arm patient-reported outcome measurement.

RESULTS

 Forty-two patients consented to ILR using LVB. ILR was completed in 41 patients with a mean of 1.9 ± 0.9 lymphovenous anastomosis performed. Mean age of patients was 52.4 ± 10.5 years with a mean body mass index of 27.5 ± 4.9 kg/m2. All patients (n = 39, 100%) received adjuvant therapy after ILR. Mean follow-up was 15.2 ± 5.1 months. Five patients met criteria for lymphedema throughout the duration of the study (12.8%), with two patients having resolution, with an overall incidence of 7.7% by the end of the study period. Patients with lymphedema were found to have statistically significant lower total LYMQOL values at 18 months (8.44 ± 1.17 vs. 3.23 ± 0.56, p < 0.001). A mean increase of 0.73 ± 3.5 points was observed for overall QOL average for upper limb function at 18 months compared with 3 months (t = 0.823, p = 0.425).

CONCLUSION

 This study showed an incidence of 7.7% lymphedema development throughout the duration of study. We also showed that ILR has the potential to reduce the significant long-term adverse outcomes of lymphedema and improve QOL for patients undergoing cALND.

An innovative flat-knit compression garment for lymphoedema patients led to better outcomes: a multicentre study

OBJECTIVE

To evaluate the clinical performance, quality of life (QoL) and patient satisfaction with an innovative flat-knit compression garment for the daytime treatment of lymphoedema patients in daily routine.

METHOD

In a prospective multicentre observational study, patients with leg or arm lymphoedema (stage I-II, International Society of Lymphology (ISL) standards, 2016) received a made-to-measure flat-knit compression class 2 JOBST Confidence (BSN-JOBST GmbH, Germany) thigh-high stocking or arm sleeve. Primary endpoint was the oedema status as determined by the mean sum of the circumferences at the beginning and the end of the wearing period. Secondary endpoints included QoL-related parameters and patient satisfaction with product features assessed through questionnaires. The observation period lasted three weeks.

RESULTS

A total of 97 patients (87 females, 10 males), of which 65 had leg lymphoedema and 32 had arm lymphoedema, received the study device. The oedema status was effectively maintained (slight reduction in mean sum of circumferences by -3.1±7.3cm; p=0.0001). For QoL-related parameters, the patients reported fewer limitations in work, leisure and psychological wellbeing after wearing the stocking or arm sleeve (all p-values <0.0001). They also experienced less limitations in function and movement, feeling of tension and heaviness, and fewer difficulties wearing clothes, shoes, jewellery or watches at study end (all p-values <0.0001). In terms of pleasant feeling on the skin, moisture management, softness of material, range of motion, overall wearing comfort and heat build-up under the garment, patients were more satisfied with the tested compression garment than with previously worn compression garments (all p-values <0.001).

CONCLUSION

In this study, the tested innovative compression product increased patient satisfaction with the improved product features while the lymphoedema status was successfully maintained.

Effectiveness of lymphaticovenular anastomosis for adult-onset primary lower limb lymphedema: A retrospective study

BACKGROUND

Surgical treatments such as lymphaticovenular anastomosis (LVA) are widely used in addition to conservative treatment of secondary lymphedema. However, their indications and effectiveness for primary lymphedema are unclear. This study aims to objectively demonstrate the effectiveness of LVA for adult-onset primary lymphedema from various perspectives.

METHODS

We retrospectively examined patients with primary lower limb lymphedema who underwent LVA between January 2018 and December 2021 and were 21 or older. Treatment effects were evaluated using lymphoscintigraphy, questionnaires, body mass index, extracellular fluid ratio, and lymphedema index preoperatively and 6 months postoperatively. The LVA was performed under general anesthesia.

RESULTS

We evaluated 11 patients (11 lower limbs). Out of seven patients with complete obstruction preoperatively, all presented partial obstruction according to the Taiwan Lymphoscintigraphy Staging classification with a significant decrease in the score. Significant improvements were observed in clinical symptoms ("hardness") and in quality of life ("appearance" and "ease of wearing compression garments") assessments. A significant change was observed in the extracellular water ratio but not in lower extremity lymphedema index (LELindex).

CONCLUSION

LVA was suggested as one of the potential treatment options for patients with adult-onset primary lymphedema in whom lymphatic flow was confirmed by lymphoscintigraphy. In addition to clinical symptoms and physical examination, the evaluation of adult-onset primary lymphedema should include the patient's quality of life.

Development and validation of the patient-reported outcome scale for chronic kidney disease

PURPOSE

The patient-reported outcomes (PROs) measuring patient's experience and perception of disease are important components of approach to care. However, no tools are available to assess the PROs of chronic kidney disease (CKD). This study aims to develop and verify a PROs scale to evaluate clinical outcomes in CKD patients.

METHODS

The theoretical structure model and original item pool were formed through a literature review, patient interviews and references to relevant scales. The Delphi method, classical test theory methods and item response theory method were used to select items and adjust dimensions to form the final scale. Altogether 360 CKD patients were recruited through convenience sampling. CKD-PROs could be evaluated from four aspects, namely reliability, content validity, construct validity, responsibility, and feasibility.

RESULTS

The CKD-PROs scale covers 4 domains, including the physiological, psychological, social, and therapeutic domain, and 12 dimensions, 54 items. The Cronbach's α is 0.939, the split reliability coefficient is 0.945, and the correlation of the scores each item and domain's coefficients range from 0.413 to 0.669. The results of structure validity, content validity and reactivity showed that the multidimensional measurement of the scale met professional expectations. The recovery rate and effective rate of the scale were over 99%.

CONCLUSION

The CKD-PROs scale has great reliability, validity, reactivity, acceptability and is capable of being used as one of the evaluation tools for the clinical outcomes of CKD patients.

Culturally adapted translation of LYMPH-Q upper extremity module from English to Mandarin Chinese

BACKGROUND

Breast cancer-related lymphedema (BCRL) is one of the debilitating complications after breast cancer treatment. Several forms of patient-reported outcome measures (PROMs) were developed to evaluate the severity of BCRL based on the patients' perspective. LYMPH-Q Upper Extremity Module is a newly developed questionnaire for BCRL. This study aimed to demonstrate the process of translation and cultural adaption from English to Mandarin Chinese.

METHODS AND RESULTS

The translation process followed the International Society for Pharmacoeconomics and Outcomes Research (ISPOR) best-practice guidelines for the translation and cultural adaption of PROM. The process included four steps: forward translation, back translation, back translation review, and patient interviews. In total, five patients with BCRL were recruited for patient interviews. The forward translation step involved two professional translators whose native language was Mandarin Chinese. A reconciled translated version was produced. In the back translation step, the reconciled translated version in Mandarin Chinese was sent to another professional translator whose native language was English. The back-translated version in English was sent back to the developer of LYMPH-Q for review. In this step, 22 items were revised. In the final step of patient interviews, 15 items were revised based on the patients' feedback.

CONCLUSION

The development of Mandarin Chinese version of LYMPH-Q Upper Extremity Module and its utilization in conjunction with the existing objective measures could provide a more well-rounded picture of the status of patients with BCRL worldwide.

Hand therapist use of patient-reported outcomes

BACKGROUND

The use of standardized outcome measures is essential for best clinical practice by hand therapists to determine patient status, progress, and the outcome of interventions. A better understanding of current patient-reported outcome (PRO) use in hand and upper extremity practice is warranted.

PURPOSE

This study sought to understand what outcome measures are being used in clinical practice, how they are being used, and the perceived usefulness of PROs by active members of the American Society of Hand Therapists (ASHT).

STUDY DESIGN

This study employed a cross-sectional design.

METHODS

The web-based survey was distributed through Qualtrics (Qualtrics, Salt Lake City, Utah) to active members of ASHT with an email address on file. The survey consisted of multiple choice and open-ended questions.

RESULTS

A total of 348 members responded to the survey. Seven hundred thirty-two different outcome measures were reported to be used by the hand therapist respondents. The most used outcome measure was QuickDASH by 38% of the respondents. Two hundred seventy-five (88%) indicated that their workplace advocated the use of PROs. Most respondents indicated that there were not constraints preventing the use of a PRO. Few therapists respondents use a psychosocial PRO in clinical practice.

CONCLUSIONS

Most of the hand therapist respondents to our survey use a PRO and discuss the results with their clients. The QuickDASH was the PRO used most often by hand therapists. Only a few hand therapists use a psychosocial tool to measure patient status in clinical practice.

Evaluating the Minimum Clinically Important Difference and Patient Acceptable Symptom State for the Womac Osteoarthritis Index after Unicompartmental Knee Arthroplasty

Patient-Reported Outcome Measures (PROMs) are standardized questionnaires that gather information on health-related quality of life directly from patients. Since a significant statistical mean change may not correspond to a clinical improvement, there is a need to calculate a considerable change in scores. This is done by the Minimum Clinically Important Difference (MCID) and Patient Acceptable Symptom State (PASS). The objective of this article is to report the MCID and the PASS values of the WOMAC (Western Ontario and McMaster University) osteoarthritis index for patients undergoing Unicompartmental Knee Arthroplasty (UKA). A total of 37 patients (25 females and 12 males; mean age 68 ± 8.1 years and mean BMI 28.7 ± 4) who underwent UKA were enrolled. All patients were assessed using the WOMAC and the Oxford Knee Score (OKS) questionnaires before and six months following the procedure. To measure the cut-off values for MCID, distribution methods and anchor methods were applied, while the PASS was assessed only via anchor approaches. The MCID related to the WOMAC average global score was 90.7 ± 7.6, the average pain dimension score was 93.2 ± 6.6, the average stiffness dimension score was 92.6 ± 17, and the average physical function dimension score was 89.7 ± 7.6. In terms of PASS, the normalized WOMAC was 82.8, the pain dimension was 87.5, the stiffness dimension was 93.7, and the functional dimension was 83.1. A 34.5 amelioration in the WOMAC score, from initial evaluation to final follow-up, using change in OKS > 5 as anchor, indicates that the patients' health state improved to a clinically significant degree. A value at least of 82.8 in WOMAC score after treatment denotes that the symptom state is deemed acceptable by most of the patients.

Quantification of breast lymphoedema following conservative breast cancer treatment: a systematic review

PURPOSE

Breast lymphoedema is a possible side effect of breast conserving surgery, but it is poorly understood. This is due, in part, to difficulty assessing the breast. This systematic review described outcome measures that quantify breast lymphoedema signs and symptoms and evaluated the measurement properties for these outcome measures.

METHOD

Seven databases were searched using terms in four categories: breast cancer, lymphoedema and oedema, clinician reported (ClinROM) and patient reported outcome measures (PROM) and psychometric and measurement properties. Two reviewers independently reviewed studies and completed quality assessments. The Consensus-based Standards for the Selection of Health Measurement Instruments (COSMIN) methodology was used for studies including measurement property evidence.

RESULTS

Fifty-six papers were included with thirteen questionnaires, eight patient-reported rating scales, seven physical measures, seven clinician-rating scales and four imaging techniques used to quantify breast lymphoedema. Based on COSMIN methodology, one ClinROM had sufficient reliability, ultrasound measuring dermal thickness. Tissue dielectric constant (TDC) measuring local tissue water had promising reliability. Four questionnaires had sufficient content validity (BLYSS, BLSQ, BrEQ and LYMQOL-Breast).

CONCLUSIONS

Ultrasound is recommended to reliably assess breast lymphoedema signs. No PROM can be recommended with confidence, but BLYSS, BLSQ, BrEQ and LYMQOL-Breast are promising. Further research is recommended to improve evidence of measurement properties for outcome measures.

IMPLICATIONS FOR CANCER SURVIVORS

There are many approaches to assess breast lymphoedema, but currently, only ultrasound can be recommended for use, with others, such as TDC and questionnaires, showing promise. Further research is required for all approaches to improve evidence of measurement properties.

Rasch validation and refinement of the Lymphedema Life Impact Scale version 2 in an Italian cohort with secondary lymphedema

PURPOSE

To produce and validate an Italian version of the Lymphedema Life Impact Scale version 2 (LLISv2-It), a tool measuring the impact of lymphedema on health-related quality of life, and investigate its main psychometric characteristics.

METHODS

After translation and cross-cultural adaptation of the LLISv2, we administered it to 156 subjects with secondary lymphedema (upper or lower limb), together with (depending on the limb involved) either the Disabilities of the Arm, Shoulder and Hand questionnaire (DASH) or the Lower Extremity Functional Scale (LEFS). We analyzed the performance of LLISv2-It using Classical Test Theory and Rasch methods.

RESULTS

Cronbach alpha was 0.89. Item fit statistics indicated that item #12 was underfitting (Infit MnSQ = 1.56; Outfit MnSq = 1.75). Test-retest reliability of the 17-item version (without item #18, not scored, according to the original authors) and of a 16-item version (without #12 and #18-a unidimensional item set) were both excellent (ICC2.1 = 0.93; 95%). The minimum detectable change was 8.9 points. The correlation of LLISv2-It with DASH and LEFS was r = 0.81 and -0.57, respectively.

CONCLUSIONS

The Italian version of the LLISv2 is reliable and valid. To make the tool more psychometrically sound, we recommend to not calculate items #12 and #18 in the total score.

IMPLICATIONS FOR REHABILITATIONThe Lymphedema Life Impact Scale (LLISv2) is particularly useful as a validated condition-specific health-related quality of life measure for patients with chronic edema/lymphedema. We have validated its Italian version (LLISv2-It).We also examined the psychometric properties of the LLISv2 in individuals with secondary lymphedema of either upper or lower limb, using both classical test theory and Rasch techniques, to provide insights for further refinement of the questionnaire.Based on our results, we recommend not to count item #12 in the total score (besides #18, as already suggested by the original authors). Moreover, we determined that the minimum detectable change of the LLISv2 was 9 points. This information is helpful in clinical practice to understand if the change in score is not due to chance (measurement error).Although further research is warranted, the present validation study of the LLISv2 increases the confidence in the metric quality and clinical utility of the scale to assess lymphedema-specific health-related quality of life in individuals with secondary lymphedema of either upper or lower limb.

Patient-reported outcomes: A primer for plastic surgeons

Surgical care today is no longer evaluated only on clinical outcomes but also on holistic patient wellbeing. Patient-reported outcomes (PROs) are a representation of the patient's perspective on their results and wellbeing. The aim of this review is to establish PROs as the center of healthcare and plastic surgery, to delineate important PROs in plastic surgery practice and research, to discuss the future of PROs within our discipline, and to encourage surgeons to incorporate PROs into their practice. PROs are an important parallel of clinical outcomes in that they can use the patient's perspective to 1) support clinical findings, 2) detect differences in care when there are no clear clinical differences, 3) track progress longitudinally, and 4) support systemic improvements in healthcare. Plastic surgery as a field is naturally aligned with PROs because, as a discipline, we focus on patient form and function. The emerging forefronts of plastic surgery such as lymphedema care, gender-affirming care, peripheral nerve surgery, migraine surgery, and breast implant illness are critically dependent on PROs. In the next decade, we predict that there will be a continued proliferation of robust PRO measures and integration into healthcare delivery. Outcomes research in surgery should continue to evolve as surgeons provide increasingly more benefits to improve patient wellbeing. Plastic surgeons must continue to play a prominent role in the future of PROs.

Pre- and Post-Microsurgical Rehabilitation Interventions and Outcomes on Breast Cancer-Related Lymphedema: a Systematic Review

PURPOSE OF REVIEW

Breast cancer-related lymphedema (BCRL) is a debilitating progressive disease resulting in various impairments and dysfunctions. Complete decongestive therapy embodies conservative rehabilitation treatments for BCRL. Surgical procedures performed by plastic and reconstructive microsurgeons are available when conservative treatment fails. The purpose of this systematic review was to investigate which rehabilitation interventions contribute to the highest level of pre- and post-microsurgical outcomes.

RECENT FINDINGS

Studies published between 2002 and 2022 were grouped for analysis. This review was registered with PROSPERO (CRD42022341650) and followed the PRISMA guidelines. Levels of evidence were based upon study design and quality. The initial literature search yielded 296 results, of which, 13 studies met all inclusion criteria. Lymphovenous bypass anastomoses (LVB/A) and vascularized lymph node transplant (VLNT) emerged as dominant surgical procedures. Peri-operative outcome measures varied greatly and were used inconsistently. There is a dearth of high quality literature leading to a gap in knowledge as to how BCRL microsurgical and conservative interventions complement each other. Peri-operative guidelines are needed to bridge the knowledge and care gap between lymphedema surgeons and therapists. A core set of outcome measures for BCRL is vital to unify terminological differences in the multidisciplinary care of BCRL. Complete decongestive therapy embodies conservative rehabilitation treatments for breast cancer-related lymphedema (BCRL). Surgical procedures performed by microsurgeons are available when conservative treatment fails. This systematic review investigated which rehabilitation interventions contribute to the highest level of pre- and post-microsurgical outcomes. Thirteen studies met all inclusion criteria and revealed that there is a dearth of high quality literature leading to a gap in knowledge as to how BCRL microsurgical and conservative interventions complement each other. Furthermore, peri-operative outcome measures were inconsistent. Peri-operative guidelines are needed to bridge the knowledge and care gap between lymphedema surgeons and therapists.

Outcome Measures and Patient-Reported Metrics in Cancer Rehabilitation

PURPOSE OF REVIEW

The current panorama of measurement tools for use in cancer rehabilitation is reviewed. For rehabilitation purposes, evaluating function is of the highest priority.

RECENT FINDINGS

From a patient-reported outcome (PRO) standpoint, SF-36 and EORTC-QLQ-C30 are in most common use in cancer rehabilitation research; these are quality of life measures that contain functional subdomains. Newer tools which are based on item response theory and have options for both computer assisted or short form (SF) administration, including the Patient-Reported Outcomes Measurement Information System (PROMIS) and Activity Measure for Post-acute Care (AMPAC) instruments, show increasing use, especially PROMIS Physical Function SF, and, recently, PROMIS Cancer Function Brief 3D, which has been validated in the cancer population, with domains of physical function, fatigue, and social participation, to track clinical rehabilitation outcomes. Evaluating objective measures of function in cancer patients is also crucial. Utilization of clinically feasible tools for cancer rehabilitation, to employ for both screening purposes and for monitoring of rehabilitation treatment efficacy, is an evolving area, much needed to promote further research and improved, consistent clinical care for cancer patients and survivors.

Minimal Clinically Important Difference (MCID), Substantial Clinical Benefit (SCB), and Patient Acceptable Symptom State (PASS) of the Shoulder Disability Questionnaire (SDQ) in Patients Undergoing Rotator Cuff Repair

The Shoulder Disability Questionnaire (SDQ) is a Patient-Reported Outcome Measure (PROM) applied to evaluate shoulder surgery outcomes. The purpose of this study is to identify the accurate Minimal Clinically Important Difference (MCID), Substantial Clinical Benefit (SCB) and Patient Acceptable Symptom State (PASS) values for the SDQ score. A total of 35 patients (21 women and 16 men, mean age 76.6 ± 3.2 years) were followed up at 6 months postoperatively. To assess the patient's health satisfaction and symptoms, anchor questions were used. The MCID and SCB values of the SDQ score for patients who underwent arthroscopic rotator cuff repair from inception to final follow-up were 40.8 and 55.6, respectively. A change of 40.8 in the SDQ score at 6 months after surgery shows that patients achieved a minimum clinically important improvement in their state of health, and a 55.6 change in the SDQ score reflects a substantial clinically important improvement. The PASS cut-off of the SDQ score at 6 months postoperatively ranged from 22.5 to 25.8. If an SDQ score of 22.5 or more is attained after surgery, the health condition can be recognized as acceptable by the majority of patients. These cut-offs will help with understanding specific patient results and allow clinicians to personally assess patient improvement after rotator cuff repair.

PROMs after Lymphatic Reconstructive Surgery: Is There a Correlation between Volume Reduction and Quality of Life?

Patients with upper limb lymphedema and lower limb lymphedema experience a wide range of physical and psychological symptoms that affect quality of life. The benefits of lymphatic reconstructive surgery for patients with lymphedema are undisputed. However, recording volume reduction alone may be insufficient with regard to postoperative outcome because measurements are often inadequate, depend on many factors, and do not reflect improvement in quality of life.

Methods

We conducted a prospective single center study patients receiving lymphatic reconstructive surgery. Patients received volume measurements preoperatively and at standardized postoperative intervals. To evaluate patient-reported outcomes, patients completed the following questionnaires: LYMPH-Q Upper Extremity Module, quickDASH, SF 36, Lymphoedema Functioning, Disability and Health Questionnaire for Lower Limb Lymphoedema, and Lower Extremity Functional Scale at the aforementioned intervals.

Results

We included 55 patients with upper limb lymphedema (24%) and lower limb lymphedema (73%) of lymphedema grades I-III. Patients received lymphovenous anastomosis only (23%), free vascularized lymph node transfer (35%) or a combination of both (42%). Analysis of patient-reported outcome measurements revealed improvements with respect to a broad range of complaints, particularly physical function, symptoms, and psychological well-being. There was no correlation between the extent of volume reduction and improvement in quality of life (Pearson correlation coefficient below ±0.7; P > 0.05).

Conclusions

Based on a broad range of outcome measurements, we observed an improved quality of life in almost all patients, even in those without measurable volume loss of the extremity operated on, which emphasizes the need for a standardized use of patient-reported outcome measures to evaluate the benefits of lymphatic reconstructive surgery.

Ensuring patient centeredness in upper extremity lymphedema research: Identifying patient-prioritized agenda and preferences

PURPOSE

To elicit a patient-prioritized agenda and preferences for upper extremity lymphedema (LE) research.

METHODS

Focus group sessions (FGs) were conducted with English-speaking, adult women (18 years and older) with breast cancer-related LE (BCRL) seeking conservative or surgical care at two tertiary cancer centers in Ontario, Canada. An interview guide was used; women were asked to describe health-related quality of life (HRQL) outcomes that mattered the most to them, followed by their preferences for research study design and for providing patient-reported outcomes measure (PROM) data. Inductive content analysis was used to identify themes and subthemes.

RESULTS

A total of 16 women participated in 4 FG sessions (55 ± 9.5 years) and described the impact of LE on their appearance, physical, psychosocial, and sexual well-being. Women emphasized that psychosocial well-being was often not discussed in clinical care and that they were poorly informed of LE risk and care options. Most women said that they would not be willing to be randomized to surgical versus conservative management of LE. They also expressed a preference to complete PROM data electronically. All women emphasized the value of having an open text option alongside PROMs to expand on their concerns.

CONCLUSION

Patient centeredness is key to generating meaningful data and ensuring ongoing engagement in clinical research. In LE, comprehensive PROMs that measure a range of HRQL concerns, especially psychosocial well-being, should be considered. Women with BCRL are reluctant to be randomized to conservative care when a surgical option is available, resulting in implications for planning trial sample size and recruitment.

Assessment of Measures of Head and Neck Lymphedema Following Head and Neck Cancer Treatment: A Systematic Review

Purpose: Head and neck lymphedema is a common condition following head and neck cancer (HNC) treatment, with substantial functional morbidity. This systematic review aimed to (1) identify tools used to assess head and neck lymphedema in HNC patients and (2) determine their validity and reliability. Methods: Electronic and hand searches of Prospero, MEDLINE, Cochrane Library, and Embase were searched from their inception until April 2021, and hand searches were independently screened by two reviewers. Studies were included if they were available in English and measured lymphedema in adult HNC patients (aged ≥18 years). Data including psychometric characteristics were extracted and synthesized narratively, with the Quality Assessment of Diagnostic Accuracy Studies-2 and the COnsensus-based Standards for the selection of health Measurement INstruments checklists used to assess risk of bias. Results: Thirty-three studies, reporting 38 assessment tools, were included. Assessments included clinician rating scales, symptom inventories, size measures, measures of internal edema, radiographic and ultrasonographic measures, and quality-of-life measures. Of the 38 measures cited, only 11 had any degree of validation and reliability testing. Risk of bias varied among the different assessment tools. Conclusion: While many tools are used in the assessment of head and neck lymphedema, the majority of these tools lack validation and reliability data. Only one tool, the Head and Neck Lymphedema and Fibrosis Symptom Inventory, met criteria for strong quality assessment. Further efforts to establish a core set of metrics for this complex condition are warranted.

Patient Reported Outcome Measures for Salivary Function: A Systematic Review

OBJECTIVE

A number of patient-reported outcome measures (PROMs) assess quality of life and symptom severity in patients with salivary gland dysfunction, but many vary in the extent of validation and domain types addressed. We identified PROMs validated to measure salivary gland function and analyzed key properties.

DATA SOURCES

PubMed, Web of Science, Embase, PsycInfo, and CINAHL.

REVIEW METHODS

A systematic review was performed using Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. Validated instruments with >1 item to assess salivary gland-related symptoms were included. PROMs were evaluated for developmental methodology, structure, validity, and reliability using Consensus-based Standards for the Selection of Health Measurement Instruments (COSMIN) criteria.

RESULTS

A total of 2059 abstracts were retrieved, and 133 full-text articles were reviewed. Sixteen PROMs assessing xerostomia (n = 7), sialadenitis (n = 4), Sjogren's syndrome (n = 2), Parkinson's-associated sialorrhea (n = 2), and oral systemic sclerosis (n = 1) were identified. Most (n = 15) were developed de novo, one was adapted from a pre-existing questionnaire. Eleven PROMs demonstrated "very good" analysis of internal consistency per COSMIN criteria, and 10 included test-retest data. Regarding content validity, four PROMs were developed with both patient and physician input, but none were rated as "adequate." All included comparisons against other questionnaires (n = 7), salivary flow rate (n = 9), and/or healthy controls (n = 3). The most rigorously developed PROM, the Xerostomia Inventory, was rated adequate in 6 out of 7 domains.

CONCLUSIONS

Several PROMs evaluate salivary function. The abilties of these PROMs to meet design and validation standards were variable, with notable limitations in content validity for all tools. New and updated PROMs assessing obstructive and inflammatory salivary symptoms should  utilize patient and provider input.

LEVEL OF EVIDENCE

N/A Laryngoscope, 2023.

[Autologous Breast Reconstruction in Conjuction with Lymphatic Microsurgery in Breast Cancer-Related Lymphedema]

Breast cancer-related lymphedema of the upper extremity is the most significant non-oncological complication of tumour therapy, leading to functional impairment and impacting patients' quality of life. Autologous breast reconstruction per se effectively reduces incidence and stage of lymphedema after breast cancer treatment by surgical angiogenesis. In addition, modern surgical techniques for treating lymphedema are effective in reducing limb volume, circumference and functional impairment, and improving patients' quality of life, body image, integrity and local immunocompetence. Reconstructive surgery, including lymphovenous anastomoses (LVA) and vascularised lymph node transfer (VLNT), have been shown to rearrange or restore lymphatic flow and prevent stage progression. For patients with breast cancer-related lymphedema after mastectomy, autologous breast reconstruction in conjunction with lymphatic microsurgery using VLNT, LVA or a combination of these procedures offers the option of holistic and single-stage restoration in modern senology. Extensive scar release in the axilla is a crucial component of the surgical technique, aiming to prepare the recipient bed for the VLN transplant and to allow for the functional recruitment of remaining lymph vessels of the upper extremity. This article presents the indications, preoperative diagnostic evaluation, surgical techniques and precautions, complications and results of combined lymphatic and breast restoration.

Dutch translation and cultural adaptation of the LYMPH-Q, a new patient-reported outcome measure for breast cancer-related lymphedema

Background

The LYMPH-Q Upper Extremity module is a new patient-reported outcome measure (PROM) developed to assess patient outcomes of breast cancer-related arm lymphedema (BCRL). Content for the LYMPH-Q Upper Extremity Module was developed from the extensive input of patients and experts in the field of breast surgery and breast cancer-related lymphedema. Rasch Measurement Theory analysis was used to assess psychometric properties. The aim of this study was to perform a Dutch translation and cultural adaptation of the LYMPH-Q Upper Extremity Module.

Methods

The translation process was performed in accordance with the guidelines of the International Society for Pharmacoeconomics and Outcomes Research (ISPOR).The process included two forward translations, two back translations, and cognitive debriefing interviews with patients with BCRL.

Results

Comparison of the two forward translations showed that the translations for most items (n = 60; 88.2%) were conceptually consistent between the two translators. Translations of the remaining items were reviewed and discussed until consensus was reached. Three items in the back translation had a different meaning when compared to the original English version and required re-translation. The resultant Dutch version of the LYMPH-Q was tested in a series of cognitive debriefing interviews with seven patients and showed good content validity.

Conclusions

The translation and cultural adaptation process resulted in a conceptually equivalent Dutch version of the LYMPH-Q Upper Extremity Module. This new PROM can now be used in clinical practice and research settings to evaluate outcomes in patients with BCRL.

Level of evidence: Not gradable

Impact of Activity-Oriented Propioceptive Antiedema Therapy on the Health-Related Quality of Life of Women with Upper-Limb Lymphedema Secondary to Breast Cancer-A Randomized Clinical Trial

BACKGROUND

Alterations derived from lymphedema in the upper-limb secondary to breast cancer-related lymphedema (BCRL) decrease the health-related quality of life (HRQoL), but there is limited evidence of the impact of the different interventions on it. The aim of this research was to compare the effect of conventional treatment with another treatment based on Activity-Oriented Antiedema Proprioceptive Therapy (TAPA) on HRQoL in women diagnosed with BCRL.

METHODS

A prospective clinical study was designed with two parallel arms. The study population consisted of women diagnosed with BCRL in stage I and II, belonging to different institutions in Córdoba and Aragon, Spain. Sociodemographic and HRQoL-related variables, pain, tightness, heaviness and functionality were obtained before and after treatments.

RESULTS

51 women participated in the study, 25 received the conventional treatment and 26 the TAPA, with a mean age of 59.24 ± 9.55 years. HRQoL was significantly related to upper-limb function and pain on the participants' affected side. In addition, covariance analysis (ANCOVA) showed that the TAPA treatment interfered less in the performance of activities of daily life and produced significant improvements in the social dimension of HRQoL.

CONCLUSIONS

the non-use of compressive elements in the rehabilitative treatment of the BCRL that is proposed with TAPA improves aspects such as self-image and participation in social and recreational activities.

Psychometric Properties of Quality of Life Questionnaires for Patients with Breast Cancer-Related Lymphedema: A Systematic Review

Backgrounds: Assessing quality of life (QoL) using a well-developed and validated questionnaire is an essential part of a breast cancer-related lymphedema (BCRL) treatment. However, a QoL questionnaire with the best psychometric properties is so far unknown. The aim of this systematic review is to evaluate the psychometric properties of the questionnaires measuring the QoL of patients with BCRL. Methods: A thorough search was performed to identify published studies in electronic databases such as Medline (via Ovid), EBSCOhost, PubMed, Scopus, and Web of Science, on 8 February 2022, by using search terms as follows: ‘quality of life’; ‘breast cancer’; ‘upper limb’; ‘lymphedema’; ‘questionnaire’; and ‘measurement properties.’ Two reviewers conducted article selection, data extraction, and quality assessment independently. The third reviewer helped solve any possible disagreements between the two reviewers. The COSMIN checklist and manual were used to assess the quality of included studies. Results: A total of nineteen articles with nine questionnaires were included and assessed using the COSMIN Risk of Bias checklist. Most studies only assessed content validity, structural validity, internal consistency, reliability, and construct validity. Lymph-ICF-UL showed the most ‘sufficient’ and ‘high’ quality of evidence ratings for its measurement properties. Conclusion: The most appropriate questionnaire for use based on our assessment is Lymph-ICF-UL.

Accuracy, Sensitivity, and Specificity of the LLIS and ULL27 in Detecting Breast Cancer-Related Lymphedema

INTRODUCTION

Breast cancer-related lymphedema occurs in up to 30% of women following axillary lymph node dissection (ALND) and less commonly following sentinel lymph node biopsy. To quantify disability in these patients, patient-reported outcome measures (PROMs) have proven useful; however, given the overlap of symptoms between ALND and lymphedema, examination of their accuracy, sensitivity, and specificity in detecting lymphedema in breast cancer patients undergoing ALND is needed.

METHODS

The Lymphedema Life Impact Scale (LLIS) and the Upper Limb Lymphedema 27 scale (ULL27) were administered to patients who had undergone ALND at least 2 years prior and either did or did not develop lymphedema. Survey responses and the degree of disability were compared to generate receiver operator characteristic (ROC) curves, and the sensitivity and specificity of PROMs to diagnose lymphedema were analyzed.

RESULTS

Both PROMs were highly accurate, sensitive, and specific for detecting lymphedema. The LLIS had an accuracy of 97%, sensitivity of 100%, and specificity of 84.8% at a cutoff of ≥ 5.88 overall percent impairment score (higher scores indicate worse disability). The ULL27 had an accuracy of 93%, sensitivity of 88.6%, and specificity of 90.9% at a cutoff of ≤ 83.3 global score (lower scores indicate worse disability).

CONCLUSIONS

The LLIS and the ULL27 appear to be highly specific for lymphedema and capable of differentiating it from symptoms resulting from ALND alone. Our findings suggest that use of these questionnaires with a threshold may be effective for diagnosing lymphedema, potentially reducing the need for frequent clinic visits and time-consuming measurements.

A Review of PROM Implementation in Surgical Practice

OBJECTIVE

To synthesize the current state of PROM implementation and collection in routine surgical practice through a review of the literature.

SUMMARY OF BACKGROUND DATA

Patient-reported outcomes (PROs) are increasingly relevant in the delivery of high quality, individualized patient care. For surgeons, PROMs can provide valuable insight into changes in patient quality of life before and after surgical interventions. Despite consensus within the surgical community regarding the promise of PROMs, little is known about their real-world implementation.

METHODS

The literature search was conducted in MEDLINE and Embase for studies published after 2012. We conducted a scoping review to synthesize the current state of implementation of PROs across all sizes and types of surgical practices. Studies were included if they met the following inclusion criteria: (1) patients ≥18 years 2) routine surgical practice, (3) use of a validated PRO instrument in the peri-operative period to report on general or disease-specific health-related quality of life, (4) primary or secondary outcome was implementation. Two independent reviewers screened 1524 titles and abstracts.

FINDINGS

16 studies were identified that reported on the implementation of PROMs for surgical patients. Sample size ranged from 41 patients in a single-center pilot study to 1324 patients in a study across 17 institutions. PROs were collected pre-operatively in 3 studies, post-operatively in 10, and at unspecified times in 4. The most commonly reported implementation outcomes were fidelity (12) and feasibility (11). Less than half of studies analyzed nonrespondents. All studies concluded that collection of PROMs was successful based on outcomes measured.

CONCLUSIONS

The identified studies suggest that implementation metrics including minimum standards of collection pre- and postintervention, reporting for response rates in the context of patient eligibility and analysis of respondents and nonrespondents, in addition to transparency regarding the resources utilized and cost, can facilitate adoption of PROMs in clinical care and accountability for surgical outcomes.

Measurement Properties of the Lymphedema Life Impact Scale

Background: The updated Lymphedema Life Impact Scale (LLIS, version 2) has been widely used to evaluate the effect of lymphedema from the patient's perspective. We sought to assess its ability to accurately and efficiently measure lymphedema-related impact using modern psychometric techniques. Methods and Results: We collected a total of 1054 patient-reported outcome measure scores from 285 patients with upper extremity lymphedema and 65 patients with lower extremity lymphedema between 2016 and 2020. We first evaluated the relationship between the LLIS score, L-Dex score, and limb volume difference (LVD), and used classical test and item response theories to assess its psychometric performance. The LLIS score was only very weakly associated with LVD (r = 0.17, p < 0.001) and L-Dex score (r = 0.22, p < 0.001). The LLIS had acceptable dimensionality. Items 7 (affects body image) and 16 (affects proper fit of clothing/shoes) were locally dependent (Yen's Q3 = 0.45). Eight of the 17 items was interpreted differently between upper and lower limb lymphedema patients (pseudo R² ≥ 0.01). The scoring structure required correction for items 9 (affects intimate relations) and 12 (manages lymphedema). Removing items 18 (infection occurrence) and 7 resulted in substantially improved item response theory model fit (Tucker-Lewis index = 0.93, comparative fix index = 0.95, root mean square error of approximation = 0.07, and root means square of the residual = 0.06). The relationships between the LLIS and objective measures of lymphedema remained weak following modification (LVD; r = 0.13, p = 0.01, L-Dex; r = 0.26, p < 0.001). Conclusion: We were able to slightly improve the psychometric properties of the LLIS. However, these improvements did not rectify apparent issues with construct validity and both versions of the LLIS displayed a weak relationship with objective measures of lymphedema severity.

Advanced translation and cultural adaption of the LYMPH-Q Upper Extremity Module from English to Danish

Background

To better quantify the impact that breast cancer-related arm lymphedema (BCRL) has on health-related quality of life (HR-QOL), a disease-specific patient-reported outcome measure (PROM) is needed. The LYMPH-Q Upper Extremity Module was recently developed for patients with BCRL. The aim of this study was to perform an advanced translation and culturally adapt the LYMPH-Q Upper Extremity Module for use in Denmark.

Methods

The LYMPH-Q Upper Extremity Module was translated into Danish according to the guidelines of the International Society for Pharmacoeconomics and Outcomes Research (ISPOR) and the World Health Organization (WHO). The process included two forward and one back translation, an expert panel meeting, and cognitive debriefing interviews with patients. The focus of the translation was to develop a Danish version that used appropriate patient-friendly language while maintaining the meaning of the items, instructions and response options.

Results

The two forward translations resulted in minor differences in terminology. These discrepancies were discussed among the translators and a harmonized Danish version 1 was achieved. Comparison of the back translation to the original English version identified 14 items/instructions/response options that required re-translation. Subsequently, experts helped to identify and resolve the language for 10 items/instructions/response options that did not maintain the same meaning as the English version. Participants in the cognitive debriefing interviews did not report any difficulties with understanding the items/instructions/response options.

Conclusions

The translation and cultural adaption process led to the development of a conceptually equivalent Danish version of the LYMPH-Q Upper Extremity Module.

Level of Evidence: Not gradable

Development and Psychometric Validation of a Patient-Reported Outcome Measure for Arm Lymphedema: The LYMPH-Q Upper Extremity Module

Background

A multiphased mixed-methods study was performed to develop and validate a comprehensive patient-reported outcome measure (PROM) for arm lymphedema in women with breast cancer (i.e., the LYMPH-Q Upper Extremity Module).

Methods

Qualitative interviews (January 2017 and June 2018) were performed with 15 women to elicit concepts specific to arm lymphedema after breast cancer treatment. Data were audio-recorded, transcribed, and coded. Scales were refined through cognitive interviews (October and Decemeber 2018) with 16 patients and input from 12 clinical experts. The scales were field-tested (October 2019 and January 2020) with an international sample of 3222 women in the United States and Denmark. Rasch measurement theory (RMT) analysis was used to examine reliability and validity.

Results

The qualitative phase resulted in six independently functioning scales that measure arm symptoms, function, appearance, psychological function, and satisfaction with information and with arm sleeves. In the RMT analysis, all items in each scale had ordered thresholds and nonsignificant chi-square p values. For all the scales, the reliability statistics with and without extremes for the Person Separation Index were 0.80 or higher, Cronbach’s alpha was 0.89 or higher, and the Intraclass Correlation Coefficients were 0.92 or higher. Lower (worse) scores on the LYMPH-Q Upper Extremity scales were associated with reporting of more severe arm swelling, an arm problem caused by cancer and/or its treatment, and wearing of an arm sleeve in the past 12 months.

Conclusions

The LYMPH-Q Upper Extremity Module can be used to measure outcomes that matter to women with upper extremity lymphedema. This new PROM was designed using a modern psychometric approach and, as such, can be used in research and in clinical care.