Segmentation of Arm Ultrasound Images in Breast Cancer-Related Lymphedema: A Database and Deep Learning Algorithm

OBJECTIVE

Breast cancer treatment often causes the removal of or damage to lymph nodes of the patient's lymphatic drainage system. This side effect is the origin of Breast Cancer-Related Lymphedema (BCRL), referring to a noticeable increase in excess arm volume. Ultrasound imaging is a preferred modality for the diagnosis and progression monitoring of BCRL because of its low cost, safety, and portability. As the affected and unaffected arms look similar in B-mode ultrasound images, the thickness of the skin, subcutaneous fat, and muscle have been shown to be important biomarkers for this task. The segmentation masks are also helpful in monitoring the longitudinal changes in morphology and mechanical properties of tissue layers.

METHODS

For the first time, a publicly available ultrasound dataset containing the Radio-Frequency (RF) data of 39 subjects and manual segmentation masks by two experts, are provided. Inter- and intra-observer reproducibility studies performed on the segmentation maps show a high Dice Score Coefficient (DSC) of 0.94±0.08 and 0.92±0.06, respectively. Gated Shape Convolutional Neural Network (GSCNN) is modified for precise automatic segmentation of tissue layers, and its generalization performance is improved by the CutMix augmentation strategy.

RESULTS

We got an average DSC of 0.87±0.11 on the test set, which confirms the high performance of the method.

CONCLUSION

Automatic segmentation can pave the way for convenient and accessible staging of BCRL, and our dataset can facilitate development and validation of those methods.

SIGNIFICANCE

Timely diagnosis and treatment of BCRL have crucial importance in preventing irreversible damage.

Routine ultrasound for suspected appendicitis in children: a single-centre retrospective cohort study

INTRODUCTION

Appendicitis continues to be a common surgical emergency in children, but its diagnosis remains challenging. Use of diagnostic imaging to confirm appendicitis has gained popularity in some countries because it is associated with lower negative appendicectomy rates. This study reports our centre's experience of adopting routine ultrasound for the investigation of suspected appendicitis in children.

METHODS

A single-centre retrospective cohort study was performed investigating all children aged 5-16 years admitted under surgeons with suspected appendicitis, in January-December 2019. Primary outcomes were the rate of ultrasound use, its accuracy in diagnosing/excluding appendicitis and negative appendicectomy rate. Other outcomes were treatment received, length of stay and complications.

RESULTS

The majority of the 193 children with suspected appendicitis underwent a diagnostic ultrasound (87.5%). Ultrasound was highly sensitive (0.90, 95% confidence interval (CI) 0.81-0.96) and specific (1.0, 95% CI 0.96-1.0) for appendicitis in this study. Negative appendicectomy rate was extremely low (1.4%). Laparoscopic appendicectomy was the preferred management (75/86), with one case started open and no conversions to open. A minority of cases of simple appendicitis (10/86) were treated primarily with antibiotics. Rates of complex appendicitis and postoperative complications were similar to other studies.

CONCLUSION

Ultrasound can be highly sensitive and specific for appendicitis. Its routine use to confirm appendicitis prior to surgery is associated with a low negative appendicectomy rate. This is a major change in practice for a general surgical unit in the United Kingdom.

Update to the Canadian clinical practice guideline for best-practice management of breast cancer-related lymphedema: study protocol

BACKGROUND

One of the more frequent complications following treatment for breast cancer, lymphedema is a substantial swelling of the arm, breast and chest wall that occurs on the side where lymph nodes were removed. The aim of this work is to update recommendations on the prevention, diagnosis and management of lymphedema related to breast cancer.

METHODS

We present the protocol for an update of the 2001 clinical practice guideline on lymphedema from the Steering Committee for Clinical Practice Guidelines for the Care and Treatment of Breast Cancer. We will use a patient-oriented research approach with a focus on self-management and the positive health model to inform the updated guideline development. The methods proposed will be undertaken with consideration of the standards outlined in the Appraisal of Guidelines for Research and Evaluation II (AGREE II) instrument. The literature will be appraised by evaluating existing guidelines from other countries, the evidence from systematic reviews and meta-analyses and direct evidence from clinical studies. We will manage competing interests according to Guidelines International Network principles. Recommendations will be presented using an actionable statement format and will be linked to the level of evidence along with any relevant considerations used in formulation. A draft of the guideline will be produced by the steering committee then sent out to international experts and stakeholder groups for feedback.

INTERPRETATION

The primary benefit of this clinical guideline will be to improve the quality of care of women with breast cancer-related lymphedema. Findings will be disseminated at national and international conferences and through webinars and educational videos hosted on the websites of the supporting organizations.

889 Management of Paediatric Appendicitis During the First Wave of COVID-19: Comparison of Our Centre to National Practice

Aim

Our hospital took part in a multi-centre prospective cohort study “the CASCADE study” investigating the management and early outcomes of children with appendicitis in the UK and Ireland during the first wave of the COVID-19 pandemic (1). The aim of this study was to compare our local outcomes to those at a national level.

Method

This was a prospective cohort study with data collected from 01/04/2020 to 31/05/2020. Primary outcome was treatment strategy for appendicitis. Secondary outcomes were duration of symptoms, ultrasound findings, rate of simple vs perforated appendicitis and complications.

Results

Overall, only a minority (2/24 [8%]) were initially treated non-operatively, with both proceeding to appendicectomy due to pain. Remaining children (24/26 [92%]) were primarily treated with appendicectomy. All were performed laparoscopically with no conversions to open. Ultrasound was performed for most children (23/26 [88%]) which accurately identified appendicitis (22/23 [95%]) and negative appendicectomy rate of zero. Rates of complex appendicitis were not higher than expected (10/26 [38%]) but had a longer duration of symptoms (median 66.0h [IQR21.5] vs 30.0h [27.2], p = 0.008) and more complications (4 vs 1). Post-operative length of stay was significantly shorter for simple appendicitis than complicated (median 1.0d [IQR0.0] vs 4.0 [IQR2.8], p = 0.001).

Conclusions

Practice in our centre contrasts with the CASCADE study's National findings where 39% were treated non-operatively, only 48% of appendicectomies were performed laparoscopically, only 53% of children had diagnostic imaging and negative appendicectomy rate was 4.5%. Rates of complications for simple and complex appendicitis were similar, but post-operative length of stay shorter in our centre.

Feasibility of a Pilot Randomized Controlled Trial Examining a Multidimensional Intervention in Women with Gynecological Cancer at Risk of Lymphedema

There is limited knowledge on non-invasive lymphedema risk-reduction strategies for women with gynecological cancer. Understanding factors influencing the feasibility of randomized controlled trials (RCTs) can guide future research. Our objectives are to report on the design and feasibility of a pilot RCT examining a tailored multidimensional intervention in women treated for gynecological cancer at risk of lymphedema and to explore the preliminary effectiveness of the intervention on lymphedema incidence at 12 months. In this pilot single-blinded, parallel-group, multi-centre RCT, women with newly diagnosed gynecological cancer were randomized to receive post-operative compression stockings and individualized exercise education (intervention group: IG) or education on lymphedema risk-reduction alone (control group: CG). Rates of recruitment, retention and assessment completion were recorded. Intervention safety and feasibility were tracked by monitoring adverse events and adherence. Clinical outcomes were evaluated over 12 months: presence of lymphedema, circumferential and volume measures, body composition and quality of life. Fifty-one women were recruited and 36 received the assigned intervention. Rates of recruitment and 12-month retention were 47% and 78%, respectively. Two participants experienced post-operative cellulitis, prior to intervention delivery. At three and six months post-operatively, 67% and 63% of the IG used compression ≥42 h/week, while 56% engaged in ≥150 weekly minutes of moderate-vigorous exercise. The cumulative incidence of lymphedema at 12 months was 31% in the CG and 31.9% in the IG (p = 0.88). In affected participants, lymphedema developed after a median time of 3.2 months (range, 2.7-5.9) in the CG vs. 8.8 months (range, 2.9-11.8) in the IG. Conducting research trials exploring lymphedema risk-reduction strategies in gynecological cancer is feasible but challenging. A tailored intervention of compression and exercise is safe and feasible in this population and may delay the onset of lymphedema. Further research is warranted to establish the role of these strategies in reducing the risk of lymphedema for the gynecological cancer population.

Cancer-related lymphedema: clinical pearls for providers

Lymphedema is a chronic inflammatory condition that results from damage to the lymphatic system. Lymphedema is classified as either primary or secondary, the former being caused by a malformation of lymph vessels or nodes, and the latter resulting from trauma, chronic lymphatic system overload, or the sequelae of cancer treatments. In the present article, we focus on secondary cancer-related lymphedema (crl), a potential survivorship treatment-related effect. Treatments for breast, gynecologic, prostate, and head-and-neck cancers, and melanoma and other skin cancers are most frequently associated with crl. The incidence of crl varies widely based on cancer location and treatment modalities, with estimates ranging from 5% to 83% in various cancers. Given the lack of a universal definition and diagnostic criteria, the prevalence of crl is difficult to ascertain; current estimates suggest that more than 300,000 Canadians are affected by crl. Here, we present an overview of crl, divided into 5 subtopics: lymphedema risk factors; early identification and intervention; diagnosis and staging; management, with emphasis on the volume reduction and maintenance phases, plus patient support and education; and clinical pearls to help providers integrate knowledge about crl into their practice.

Examining Obesity in Lymphedema: A Retrospective Study of 178 New Patients with Suspected Lymphedema at a Canadian Hospital-Based Clinic

Purpose: Physiotherapists have an important role to play in the early detection and treatment of lymphedema, a chronic inflammatory condition characterized by excess interstitial protein-rich fluid, which is estimated to affect more than one million Canadians. Obesity has been identified both as an important cause of and as a risk factor for developing lymphedema of various aetiologies. Little is currently known about obesity in Canadians affected by lymphedema. The objective of this study was to report on the prevalence of overweight and obesity in a Canadian lymphedema clinic population and the relationships among BMI; demographic, medical, and lymphedema characteristics; and cellulitis history. Method: We conducted a retrospective electronic record review of the clinical data collected from new patients evaluated for suspected lymphedema at a specialized Canadian hospital-based clinic over a 2-year period. We used descriptive analyses to characterize the sample and one-way analysis of variance and χ2 tests for comparative analyses. Results: Of the 178 patients whose records were reviewed, 36.5% were classified as overweight and 39.3% as obese. Patients with non-cancer diagnoses had a higher mean BMI than those with cancer-related diagnoses (p < 0.001). A higher BMI was associated with a longer time since lymphedema onset (p < 0.001), bilateral lymphedema (p = 0.010), and history of cellulitis (p < 0.001). Conclusions: Obesity is prevalent in the Canadian population with lymphedema and is associated with delayed referral and increased cellulitis rates. Early detection and tailored management strategies are needed to address obesity in patients with lymphedema and the complexities associated with these two related conditions.

Embracing Vulnerability: Risk and Empathy in Palliative Care

This paper discusses a case example from a larger case narrative study conducted by the authors during 1995–1999. The case illustrates the premise that the dying experience is ultimately a complex experience and one that the caregiver may never truly understand. Both patient and caregivers remain learners. We propose that while the process of achieving empathic communication necessarily demands “good listening,” the palliative care provider may be invited to go beyond the domain of listening, to emotional realms that are neither easy nor comfortable. This paper examines two aspects of empathy: 1) the process of learning to empathize with persons who are dying; 2) empathy as a therapeutic act that requires vulnerability and personal risk within the patient-caregiver relationship.

The Psychosocial Effects of Cancer-Related Lymphedema

Life-long lymphedema is a common complication of cancer therapy. In this Canadian study, we adopted a phenomenological methodology to explore the experience of patients with cancer-related lymphedema, and their spouses. We conducted audio taped semistructured interviews with 11 patients and eight spouses, who were recruited through a university hospital-based lymphedema clinic and through local lymphedema therapists. We developed an analytical framework from the data themselves, and tentative hypotheses and thematic categories that represented shared case features. Participants expressed frustration because of lack of financial support from government and insurance companies, inadequate knowledge and perceived lack of interest on the part of physicians, and lack of awareness in society in general. This study suggests further investigation of the funding of lymphedema treatments, and of the effect of lymphedema on work, intimacy, and leisure activities. Our research findings will inform educational initiatives and cancer rehabilitation programs.

Assessment of Mechanical Properties of Tissue in Breast Cancer-Related Lymphedema Using Ultrasound Elastography

Breast cancer-related lymphedema is a consequence of a malfunctioning lymphatic drainage system resulting from surgery or some other form of treatment. In the initial stages, minor and reversible increases in the fluid volume of the arm are evident. As the stages progress over time, the underlying pathophysiology dramatically changes with an irreversible increase in arm volume most likely due to a chronic local inflammation leading to adipose tissue hypertrophy and fibrosis. Clinicians have subjective ways to stage the degree and severity such as the pitting test which entails manually comparing the elasticity of the affected and unaffected arms. Several imaging modalities can be used but ultrasound appears to be the most preferred because it is affordable, safe, and portable. Unfortunately, ultrasonography is not typically used for staging lymphedema, because the appearance of the affected and unaffected arms is similar in B-mode ultrasound images. However, novel ultrasound techniques have emerged, such as elastography, which may be able to identify changes in mechanical properties of the tissue related to detection and staging of lymphedema. This paper presents a novel technique to compare the mechanical properties of the affected and unaffected arms using quasi-static ultrasound elastography to provide an objective alternative to the current subjective assessment. Elastography is based on time delay estimation (TDE) from ultrasound images to infer displacement and mechanical properties of the tissue. We further introduce a novel method for TDE by incorporating higher order derivatives of the ultrasound data into a cost function and propose a novel optimization approach to efficiently minimize the cost function. This method works reliably with our challenging patient data. We collected radio frequency ultrasound data from both arms of seven patients with stage 2 lymphedema, at six different locations in each arm. The ratio of strain in skin, subcutaneous fat, and skeletal muscle divided by strain in the standoff gel pad was calculated in the unaffected and affected arms. The p -values using a Wilcoxon sign-rank test for the skin, subcutaneous fat, and skeletal muscle were 1.24×10^-5 , 1.77×10^-8 , and 8.11×10^-7 respectively, showing differences between the unaffected and affected arms with a very high level of significance.

Of dilemmas and tensions: a qualitative study of palliative care physicians' positions regarding voluntary active euthanasia in Quebec, Canada

OBJECTIVES

In 2015, the Province of Quebec, Canada passed a law that allowed voluntary active euthanasia (VAE). Palliative care stakeholders in Canada have been largely opposed to euthanasia, yet there is little research about their views. The research question guiding this study was the following: How do palliative care physicians in Quebec position themselves regarding the practice of VAE in the context of the new provincial legislation?

METHODS

We used interpretive description, an inductive methodology to answer research questions about clinical practice. A total of 18 palliative care physicians participated in semistructured interviews at two university-affiliated hospitals in Quebec.

RESULTS

Participants positioned themselves in opposition to euthanasia. Their justifications were framed within their professional commitment to not hasten death, which sat in tension with the value of patients' autonomy to choose how to die. Participants described VAE as unacceptable if it impeded opportunities to evaluate and alleviate suffering. Further, they contested government rhetoric that positioned VAE as a way to improve end-of-life care. Participants felt that VAE would diminish the potential of palliative care to relieve suffering. Dilemmas were apparent in their narratives, about reconciling respect for patient autonomy with broader palliative care values, and the value of accompanying and not abandoning patients who make requests for VAE while being committed to neither prolonging nor hastening death.

CONCLUSIONS

This study provides insight into nuanced positions of experienced palliative care physicians in Quebec and confirms expected tensions between an important stakeholder and the practice of VAE as guided by the new legislation.

Self-Management Strategies for Malignant Lymphedema: A Case Report with 1-Year and 4-Year Follow-Up Data

Purpose: Malignant lymphedema is an accumulation of interstitial fluid caused by tumour infiltration or compression of lymphatic vessels. Our objective is to describe self-management strategies for malignant lymphedema using a case report. Client Description: A 50-year-old woman with advanced breast cancer was referred to our centre with a 3-month history of unexplained left-arm edema, subsequently diagnosed as malignant lymphedema caused by tumour compression of the axillary lymph nodes. Intervention: She undertook a physiotherapist-guided, modified lymphedema treatment programme, with self-management interventions including self-bandaging and exercise. Limb volumes and leisure exercise levels were measured over a 1-year period. Data were collected from her follow-up visit 4 years post-diagnosis of lymphedema. Measures and Outcome: Within the first month, the patient's excess limb volume reduced from 26.8% to 5.9% and, 1 year later, remained stable at 3%. Over time, her exercise levels increased (1-year follow-up: 33.5 MET-hours per week). At 4 years, her excess limb volume was 9.7%, and exercise levels were at 36 MET-hours per week. Implications: A woman with moderate malignant arm lymphedema caused by advanced breast cancer successfully adhered to a guided self-management programme and benefited from reduced swelling and improved self-reported physical function in the long term. This case provides oncology health professionals with knowledge about self-management options for malignant lymphedema.

Comparisons Between Cancer-Related and Noncancer-Related Lymphedema: An Overview of New Patients Referred to a Specialized Hospital-Based Center in Canada

BACKGROUND

Lymphedema is an irreversible inflammatory condition caused by accumulated lymph fluid and is associated with chronic swelling and increased risk of cellulitis. Our objectives were to: (1) describe the patient population referred to a Canadian lymphedema center and (2) compare lymphedema characteristics between patients with cancer and patients with noncancer diagnoses.

METHODS AND RESULTS

A retrospective cohort study was conducted of new patients referred for suspected lymphedema to a hospital-based center over a 2-year period. The mean age of the patients (n = 429) was 61.4 years; 85% were female and 81% had a history of cancer. Lymphedema characteristics were primary (7%) versus secondary (92%); upper body (51%) versus lower body (45%); unilateral (74%) versus bilateral (25%); and history of cellulitis (22%). Patients with noncancer diagnoses (n = 82) were more likely than patients with cancer diagnoses (n = 347) to have a history of cellulitis (44% vs. 17%), to have bilateral (61% vs. 16%) and lower limb (89% vs. 37%) lymphedema, and to experience a long delay between symptom onset and referral (14.0 vs. 3.5 years) (p < 0.001).

CONCLUSION

Most patients referred to our lymphedema center were female with a history of cancer. However, patients with noncancer diagnoses were more likely to have bilateral lower body lymphedema with an important history of cellulitis; this subgroup is at great risk of missed and delayed diagnoses in the medical setting and of experiencing long-term issues with mobility, recurrent hospitalizations, and poor quality of life.

Loss, adaptation and new directions: The impact of arm morbidity on leisure activities following breast cancer

The impact of arm morbidity on leisure and quality of life is an understudied area in cancer survivorship. The purpose of this study was to qualitatively describe the impact of breast cancer-related arm morbidity on leisure participation in Canadian women. A grounded theory approach was used to generate thematic categories and a model. Drawing on participants from a larger cohort study (n = 740), 40 women with arm morbidity symptoms were purposively sampled and interviewed. Three themes emerged: a sense of loss, adapting participation, and new directions. Women with arm morbidity may experience an abrupt loss of previously enjoyed leisure activities and engage in a process of adapting to discover new meanings and directions. Comprehensive, person-centred cancer survivorship programs may assist with adaptation to arm morbidity.

A lymphedema self-management programme: report on 30 cases

PURPOSE

Compression therapy is the most important element in the treatment and long-term management of moderate and severe lymphedema, but it is not universally accessible in Canada. For those unable to access private lymphedema treatment, physiotherapists at the McGill University Health Centre (MUHC) Lymphedema Clinic began teaching patients and caregivers how to use compression bandages safely and effectively.

METHODS

A retrospective chart review was combined with structured telephone or in-person interviews with 30 people who had attended a self-bandaging clinic in the MUHC Lymphedema Clinic between 2011 and 2012. Patients were monitored weekly until limb volume plateaued, and a compression garment was then fitted for ongoing maintenance. Monthly or quarterly surveillance continued for 1 year. Follow-up interviews were conducted 3 to 18 months after patients had received their garments.

RESULTS

The majority of participants had moderate to severe lymphedema; all achieved reduction of edema in the range of 48% to 92%. More than three-quarters of participants reported a global rate of change (GRC) of ≥80%. Themes derived from the interviews included the importance of bandaging, the feeling of being in control, and difficulties with compression garments. Participants spontaneously expressed satisfaction about having tools to manage their condition themselves.

CONCLUSION

For selected patients with lymphedema, a self-bandaging programme can be a route to lymphedema reduction, independence, and self-efficacy.

Determining the precision of dual energy x-ray absorptiometry and bioelectric impedance spectroscopy in the assessment of breast cancer-related lymphedema

BACKGROUND

The composition of breast cancer-related lymphedema (BCRL) has been shown to evolve from the initial accumulation of fluid to the development of fibrotic lesions and abnormal fat deposition. Therefore, precise and reliable assessments of BCRL are required to develop accurate staging and management. Although dual energy x-ray absorptiometry (DXA) and bioelectric impedance spectroscopy (BIS) have been used to assess BCRL, no study has evaluated the precision of these two modalities in the same cohort.

METHODS AND RESULTS

We determined the precision of DXA and BIS in lymphedematous (LE) and nonaffected (NA) arms of 24 women with Stage II unilateral BCRL. Precision was calculated from the results of paired bilateral arm measurements obtained from DXA scans measuring fat, lean, and bone mineral masses, BIS measuring extracellular fluid (ECF) and total fluid volume, and circumferential tape measurements (CM) of the arms to calculate the anatomic volume. Precision error was expressed as the root mean square (RMS) of the coefficients of variation (%CV) and standard deviations (SD).

RESULTS

The precisions of DXA and BIS varied from 1.16% (DXA measurements of LE arm total volume) to 1.86% (BIS LE arm total fluid volume) and from 0.95% (DXA lean mass of NA arm) to 1.72% (DXA BMC of NA arm). Precision of CM measures of arm volume were 1.71% CV for LE arm and 2.51% CV for NA arm. The fat and lean masses of the LE arm exceeded the NA arm by about 15% (p<0.0001). ECF and total fluid volume of LE arm was 22.6% and 19% greater than the NA arm (p<0.0001), respectively.

CONCLUSION

For BCRL, these findings suggest that DXA and BIS are two measurement instruments that provide acceptable levels of precision for the measurement of arm lean mass, fat mass and ECF volume, respectively.

Lymphedema in Canada: a qualitative study to help develop a clinical, research, and education strategy

OBJECTIVE

The aim of this study was to gather data from Canadian stakeholders to help construct a national strategy and agenda for lymphedema management.

METHODS

The Canadian Lymphedema Framework, a collaboration of medical academics, lymphedema therapists, patient advocates, and others, used participatory action research and Open Space Technology to identify issues and build consensus at a national meeting of lymphedema stakeholders. Proceedings were videotaped and underwent content analysis. Existing Canadian documentation on lymphedema services was analyzed. Using those data sources, the Canadian Lymphedema Framework drafted a development strategy.

RESULTS

Of 320 invited stakeholders (patients, therapists, physicians, industry representatives, and health policymakers), 108 participated in a day-long videotaped meeting discussing strategies to improve the management of lymphedema and related disorders in Canada. Participants identified barriers, challenges, and issues related to the need to raise awareness about lymphedema with patients, physicians, and the public. Five priority areas for development were articulated: education, standards, research, reimbursement and access to treatment, and advocacy. The main barrier to development was identified as the lack of clear responsibility within the health care system for lymphedema care.

CONCLUSIONS

Data from stakeholders was obtained to solidly define priority areas for lymphedema development at a national level. The Canadian Lymphedema Framework has created a working plan, an advisory board, and working groups to implement the strategy.

Predictors of arm morbidity following breast cancer surgery

OBJECTIVE

Arm morbidity post-breast cancer surgery is increasingly being recognized as a chronic problem for some women following breast cancer surgery. The purpose of this study was to examine demographic, disease, and treatment-related predictors of a comprehensive array of chronic arm morbidity (pain, lymphedema, functional disability, and range of motion) post-breast cancer surgery.

METHODS

Women (n=316) with a non-metastatic primary diagnosis of breast cancer were accrued from cancer centers in four Canadian cities. Patients completed a clinical assessment and measures of arm morbidity at 6-12 months post-breast cancer surgery. The independent variables in the MANOVA to predict arm morbidity included: Lymph node management type, number of axillary nodes dissected, type of surgery, disease stage, presence of post-operative infection, radiation to the axilla, body mass index (BMI), assessment time post-surgery, education, and partner status.

RESULTS

Pain was significantly predicted by axillary lymph node management, lack of a partner, and post-operative infection; lymphedema by axillary lymph node management, number of axillary nodes dissected, radiation to the axilla, and having a modified radical mastectomy; functional disability by post-operative infection and high BMI; and restricted external rotation by axillary lymph node management, low educational attainment, and advanced disease.

CONCLUSION

Comprehensive behavioral management and rehabilitation programs are needed to treat arm morbidity following breast cancer surgery. These programs should address the full scope of symptoms and associated psychosocial and functional sequelae.

Breast Cancer Survivorship and Work Disability

Breast cancer survivors can anticipate a number of years of paid labor market participation. Therefore, the link between breast cancer survivorship and productivity deserves serious consideration. The hypothesis guiding this study is that arm disability, particularly pain and range of motion limitations, are important explanatory variables in survivors’ loss of productivity. The study investigates the association between productivity and arm disability over time. The longitudinal data are drawn from survivors in four geographical locations in Canada. Regression results indicate that survivors with arm pain, 2.5 to 3 years postsurgery, are almost 8 times more likely to experience a loss in productivity compared to those survivors without pain, and those with some range of motion limitations are 4 times more likely to experience productivity loss 2.5 to 3 years postsurgery compared to their counterparts without limitations. More than 40% of survivors begin to or continue to experience productivity loss as long as 30 to 36 months after surgery and that the loss in productivity is primarily due to two forms of arm disability: pain and range-of-motion limitations. These findings highlight the importance of rehabilitation programming for breast cancer survivors.

"This is a kind of betrayal": a qualitative study of disability after breast cancer

OBJECTIVE

We proposed to document the effect of arm morbidity and disability in 40 Canadian women who were 12-24 months post breast cancer surgery.

METHODS

We completed 40 qualitative interviews as one component of a multidisciplinary national longitudinal study of arm morbidity after breast cancer (n = 745) involving four research sites (Fredericton/Saint John, Montreal, Winnipeg, Surrey). During semi-structured interviews, participants who had reported arm morbidity and disability in earlier surveys were asked to discuss the effects of these conditions on everyday life.

RESULTS

The interviewees reported making major adjustments to paid and unpaid work, which often involved the assistance of family members, thus demonstrating the effect of disability. Interview data resulted in the creation of a model that addresses arm morbidity and disability, and that holds implications for health care professionals.

CONCLUSIONS

Based on the interview findings, we conclude that a robust measure of disability after breast cancer should be developed. In the absence of a validated measure of the effect of disability, evaluating qualitative responses to questions about everyday activities could provide the impetus for provision of physical therapy and emotional support.

The psychosocial effects of cancer-related lymphedema

Life-long lymphedema is a common complication of cancer therapy. In this Canadian study, we adopted a phenomenological methodology to explore the experience of patients with cancer-related lymphedema, and their spouses. We conducted audio taped semistructured interviews with 11 patients and eight spouses, who were recruited through a university hospital-based lymphedema clinic and through local lymphedema therapists. We developed an analytical framework from the data themselves, and tentative hypotheses and thematic categories that represented shared case features. Participants expressed frustration because of lack of financial support from government and insurance companies, inadequate knowledge and perceived lack of interest on the part of physicians, and lack of awareness in society in general. This study suggests further investigation of the funding of lymphedema treatments, and of the effect of lymphedema on work, intimacy, and leisure activities. Our research findings will inform educational initiatives and cancer rehabilitation programs.

Ethical issues in palliative care. Views of patients, families, and nonphysician staff

OBJECTIVE

Much of what we know about ethical issues in palliative care comes from the perceptions of physicians and ethicists. In this study our goal was to hear other voices and to gain first-hand knowledge of the possibly contrasting views of patients, their families, nurses, volunteers, and other team members on end-of-life issues.

DESIGN

Qualitative study using semistructured interviews.

SETTING

Inpatient and consultation palliative care service of the Royal Victoria Hospital in Montreal, Que.

PARTICIPANTS

Of 113 people interviewed, 13 were patients, 43 were family members, 32 were volunteers, 14 were nurses, and 11 were other staff.

METHOD

Interviewers elicited subjects' perspectives on ethical issues. Content analysis was used to identify, code, and categorize themes in the data.

MAIN FINDINGS

Communication difficulties and insufficient resources and staff were the most frequently mentioned problems in this palliative care setting.

CONCLUSION

The findings of this study will help guide policy decisions and setting of educational priorities in end-of-life care, particularly regarding the importance of adequate communication.

Embracing vulnerability: risk and empathy in palliative care

This paper discusses a case example from a larger case narrative study conducted by the authors during 1995-1999. The case illustrates the premise that the dying experience is ultimately a complex experience and one that the caregiver may never truly understand. Both patient and caregivers remain learners. We propose that while the process of achieving empathic communication necessarily demands "good listening," the palliative care provider may be invited to go beyond the domain of listening, to emotional realms that are neither easy nor comfortable. This paper examines two aspects of empathy: 1) the process of learning to empathize with persons who are dying; 2) empathy as a therapeutic act that requires vulnerability and personal risk within the patient-caregiver relationship.

Communication between family physicians and oncologists: qualitative results of an exploratory study

OBJECTIVE

To study communication between family physicians (FPs) and oncologists, and to look at the factors that may influence FP involvement in cancer care.

DESIGN

This survey design uses a qualitative methodology, where the data are analyzed using a modified grounded theory approach.

SETTING

This was a multisite study using 14 focus groups of FPs, followed by structured telephone interviews with 116 FPs in 6 different Canadian provinces.

MAIN OUTCOME MEASURE

Interview questions were used to explore the actual and desired roles of FPs in cancer care, and the quality of communication with oncologists with reference to a particular cancer patient in the FPs' practice.

RESULTS

Physicians providing cancer care must consider complex psychosocial and biomedical factors, more so than with other chronic diseases, and so written communication alone is inadequate. Family physicians require face-to-face and/or telephone communication with the oncologist to negotiate their respective roles, and to discuss the patient's prognosis and the effectiveness of proposed treatments. Family physicians expressed a desire to become more involved in all stages of cancer care in both the biomedical and psychosocial aspects, and to help better define their roles throughout the illness trajectory.

CONCLUSION

These results suggest opportunities to improve the communication, coordination and comprehensiveness of shared cancer care provided by family physicians and oncologists in different clinical settings.

Physiologic and psychologic characteristics of an elderly population with chronic constipation

OBJECTIVES

To characterize colorectal physiologic parameters and psychological profiles in subjects > or = 60 yr with chronic constipation who have not sought medical advice.

METHODS

Colorectal physiologic studies and psychologic profiles were obtained in 18 self-identified constipated subjects and 17 nonconstipated control subjects. Constipation was defined as two or fewer bowel movements/week and/or defecatory difficulty for at least 6 months. All subjects underwent colonic transit with radiopaque markers, anorectal manometry and completed a self rated inventory assessing psychological distress (SCL-90-R).

RESULTS

Slow colonic transit occurred in five constipated subjects. Pelvic floor dyssynergia and/or increased rectal compliance were found in nine subjects versus only two controls. One-third of constipated subjects scored in the top 10th percentile for global psychologic distress with higher scores for somatization, depression, and anxiety than control subjects. Neither physiologic nor psychologic abnormalities were predictable on the basis of patterns of bowel complaints.

CONCLUSIONS

Colorectal physiologic and psychologic dysfunctions are common in elderly constipated subjects who do not seek medical attention for bowel dysfunction.

Serum sex hormones and severity of osteoarthritis of the hand

OBJECTIVE

To examine the relationship of endogenous sex hormones to the severity of radiographic hand osteoarthritis (ROA) in 229 white women, mean age 74 years.

METHODS

Hand ROA was graded according to the Kellgren-Lawrence scale and according to individual features of OA: osteophytes, joint space narrowing, subchondral sclerosis, lateral deformity and joint collapse. Two measures of hand ROA were considered: the worst joint score assigned to any one of 10 hand joints and the sum of the scores for the 10 joints.

RESULTS

Comparison of the age and obesity adjusted sex hormone concentrations by the worst Kellgren-Lawrence score or the worst score of the individual features of OA revealed little difference. There were no trends in the sex hormone concentrations with increasing severity of hand ROA.

CONCLUSIONS

Our results do not support an association between endogenous hormone levels and severity of hand ROA.