Hot off the Press November 2023
We have collated some great articles and material published over the last month. Click on the links below to read the abstract or download the full paper.
Anatomy / Physiology /Pathophysiology
Etiology and treatment of cancer-related secondary lymphedema - click for abstract
Etiology and treatment of cancer-related secondary lymphedema
Lymphedema and specifically cancer-related lymphedema is not the main focus for both patients and physicians dealing with cancer. Its etiology is an unfortunate complication of cancer treatment. Although lymphedema treatments have gained an appreciable consensus, many practitioners have developed and prefer their own specific protocols and this is especially true for conventional (manual) versus surgical treatments. This collection of presentations explores the incidence and genetics of cancer-related lymphedema, early detection and monitoring techniques, both conventional and operative treatment options, and the importance and role of exercise for patients with cancer-related lymphedema. These assembled presentations provide valuable insights into the challenges and opportunities presented by cancer-related lymphedema including the latest research, treatments, and exercises available to improve patient outcomes and quality of life
A 3D biomimetic model of lymphatics reveals cell-cell junction tightening and lymphedema via a cytokine-induced ROCK2/JAM-A complex - click for abstract
A 3D biomimetic model of lymphatics reveals cell-cell junction tightening and lymphedema via a cytokine-induced ROCK2/JAM-A complex
Prevalence and Risk Factors
Is it the Type of Axillary Surgery or the Number of Removed Lymph Nodes That Increases the Risk of Breast Cancer Related Lymphedema (BCRL)? Results from a Prospective Screening Trial- click for abstract
Is it the Type of Axillary Surgery or the Number of Removed Lymph Nodes That Increases the Risk of Breast Cancer Related Lymphedema (BCRL)? Results from a Prospective Screening Trial
PURPOSE/ OBJECTIVE(S): Axillary surgery has been identified as the main risk factor for BCRL regardless the delivery of regional nodal radiation (RLNR). Yet it remains unknown if it is the type of axillary surgery or the number of removed lymph nodes (LN) that increases BCRL risks.
MATERIALS/ METHODS: Between 2008 and 20., 3,350 patients (pts) who received surgery for breast cancer were enrolled in a lymphedema screening trial. Patients with bilateral breast cancer or without axillary surgery were excluded. Perometry was used to assess limb volume preoperatively in all patients. BCRL was defined as a ≥10% relative arm-volume increase arising >3 months postoperatively. The cohort was divided by axillary surgery type: axillary lymph node dissection (ALND) and sentinel lymph node biopsy (SLNB). Radiation was delivered using 3D conformal technique and RLNR was defined as the usage of anterior supraclavicular field. No hypofractionation was used and doses ranged between 50 and 50.4 Gy in 25-28 fractions. Multivariable Cox proportional hazard models compared the cumulative incidence of BCRL and local failure between different patient groups.
RESULTS: After applying inclusion criteria, 2,623 pts were available with overall median follow-up s of 6.1 years. Of the entire cohort, 709 (27%) had ALND with a median of 16 LN removed, while 1,914 (73%) received SLNB only with a median of 2 LN removed. The median number of malignant LN and patients receiving RLNR was higher in ALND group compared to SLNB only group. Frequency distribution analysis showed that the main overlap between ALND and SLNB only groups happen in the range of 3-11 LN removed. Therefore, the primary analysis focused only on pts with 3-11 LN across both groups (n = 690: ALND n = 140, SLNB n = 550). The multivariable model adjusted for BMI, RLNR, age and breast surgery showed that in this group with 3-11 LN removed in both cohorts, ALND remained significantly associated with BCRL (HR: 4.2, p<0.0001). Separate analyses for the entire SLNB only group and ALND groups were conducted to evaluate if the BCRL risk increases per each removed LN within the same axillary surgery group. The multivariable analysis for SLNB only pts(N = 1,914) showed that for each LN removed the risk of BCRL did not increase significantly (HR:1.06, p = 0.3), similarly for ALND group (N = 709) for each LN removed (HR:1.02, p = 0.08). For pts with pathologic disease and clinical node negative without neoadjuvant chemotherapy receiving ALND, the number of LN removed did not significantly improve neither Local control (HR:1.02, p = 0.8) nor distant disease survival (HR:1.01, p = 0.6). CONCLUSION: ALND procedure per se is the main risk factor for BCRL not the number of LNs removed. For high-risk pts with >N2 disease, aggressive ALND did not improve tumor outcome. De-escalation with targeted axillary sampling followed by RLNR should be evaluated. Future lymphedema research should account for type of axillary surgery instead of number of LNs removed as a factor.
Identification and Dosimetric Analysis of Axillary Substructures Associated with Breast Cancer Related Lymphedema- click for abstract
Identification and Dosimetric Analysis of Axillary Substructures Associated with Breast Cancer Related Lymphedema
Incidence, Radiologic and Dosimetric Parameters Associated with Radiation Induced Breast Lymphedema - click for abstract
Incidence, Radiologic and Dosimetric Parameters Associated with Radiation Induced Breast Lymphedema
Analysis of the Risk Factors of Breast Cancer-Related Lymphedema and Construction and Evaluation of a Prediction Model - click for abstract
Analysis of the Risk Factors of Breast Cancer-Related Lymphedema and Construction and Evaluation of a Prediction Model
The role of aromatase inhibitors in slim women with breast cancer-related lymphoedema: a reflective case series - click for abstract
The role of aromatase inhibitors in slim women with breast cancer-related lymphoedema: a reflective case series
Axillary Treatment and Chronic Breast Cancer-Related Lymphedema: Implications for Prospective Surveillance and Intervention From a Randomized Controlled Trial - click for abstract
Axillary Treatment and Chronic Breast Cancer-Related Lymphedema: Implications for Prospective Surveillance and Intervention From a Randomized Controlled Trial
PURPOSE: The PREVENT randomized trial assessed progression to chronic breast cancer-related lymphedema (cBCRL) after intervention triggered by bioimpedance spectroscopy (BIS) or tape measurement (TM). This secondary analysis identifies cBCRL risk factors on the basis of axillary treatment.
METHODS: Between June 2014 and September 2018, 881 patients received sentinel node biopsy (SNB; n = 651), SNB + regional node irradiation (RNI; n = 58), axillary lymph node dissection (ALND; n = 85), or ALND + RNI (n = 87). The primary outcome was the 3-year cBCRL rate requiring complex decongestive physiotherapy (CDP).
RESULTS: After a median follow-up of 32.8 months (IQR, 21-34.3), 69 of 881 patients (7.8%) developed cBCRL. For TM, 43 of 438 (9.8%) developed cBCRL versus 26 of 443 (5.9%) for BIS (P = .028). The 3-year actuarial risk of cBCRL was 4.4% (95% CI, 2.7 to 6.1), 4.2% (95% CI, 0 to 9.8), 25.8% (95% CI, 15.8 to 35.8), and 26% (95% CI, 15.3 to 36.7). Rural residence increased the risk in all groups. For SNB, neither RNI (SNB, 4.1% v SNB + RNI, 3.4%) nor taxane (4.4%) increased cBCRL, but risk was higher for patients with a BMI of ≥30 (6.3%). For SNB + RNI, taxane use (5.7%) or supraclavicular fossa (SCF) radiation (5.0%) increased cBCRL. For ALND patients, BMI ≥25 or chemotherapy increased cBCRL. For ALND + RNI, most patients received SCF radiation and taxanes, so no additional risk factors emerged.
CONCLUSION: The extent of axillary treatment is a significant risk factor for cBCRL. Increasing BMI, rurality, SCF radiation, and taxane chemotherapy also increase risk. These results have implications for a proposed risk-based lymphedema screening, early intervention, and treatment program.:10.1200.00060
Obesity and Taxanes are Independent Risk Factors for Postmastectomy Lymphedema: A TriNetX Based Analysis
Assessment
Effects of Body Positioning When Assessing Lymphedema of the Lower Limb Using Bioimpedance Spectroscopy - click for abstract
Effects of Body Positioning When Assessing Lymphedema of the Lower Limb Using Bioimpedance Spectroscopy
Indocyanine Green Lymphography in Conservative Lymphedema Therapy: A Scoping Review - click for abstract
Indocyanine Green Lymphography in Conservative Lymphedema Therapy: A Scoping Review
Background:
There is great potential but seemingly limited use of indocyanine green (ICG) lymphography to influence conservative lymphedema therapy clinical practice. This scoping review aimed to map existing evidence for ICG lymphography relating to conservative lymphedema therapy.
Methods:
A 6-staged scoping review framework of Arksey and O’Malley was used to guide the study. Protocol development included key stakeholder consultation. Searches were conducted in 5 databases with specialist librarian support. A 2-phase selection process undertaken by 2 researchers identified studies for inclusion. Conflicts were resolved by consensus. A subsequent 3-phase data extraction and quality appraisal process occurred. Key findings were presented in a descriptive numerical summary.
Results:
A total of 6316 records were identified, yielding 162 articles for inclusion. Categorization was made according to article type and purpose of ICG lymphography including lymphedema assessment (diagnosis and staging) and/or conservative therapy. Seventy-six empirical research articles with detailed reference to ICG lymphography were explored further.
Conclusion:
Current published research about ICG lymphography in conservative lymphedema therapy describes support for its use in lymphedema diagnosis, and proposes staging systems for lymphedema severity. Despite existing work, further exploration of effect on conservative therapy planning, clinical, and patient outcomes is necessary to consider future translation to clinical practice.
Barriers and facilitators to implementation of APTA’s breast cancer-related lymphedema diagnosis and intervention clinical practice guidelines - click for abstract
Barriers and facilitators to implementation of APTA’s breast cancer-related lymphedema diagnosis and intervention clinical practice guidelines
Suffering of patients developing lymphedema following gynecological cancer surgery
Test-Retest Reliability of a Protocol for Assessment of Local Tissue Water in the Head and Neck Area
Management Strategies
Overcoming lymphorrhoea: a step to achieve a better life with lymphoedema - click for abstract
Overcoming lymphorrhoea: a step to achieve a better life with lymphoedema
Effectiveness of manual lymphatic drainage and intermittent pneumatic compression in lymphedema maintenance therapy - click for abstract
Effectiveness of manual lymphatic drainage and intermittent pneumatic compression in lymphedema maintenance therapy
Effect of Conservative Rehabilitation Interventions on Health-Related Quality of Life in Women with Upper Limb Lymphedema Secondary to Breast Cancer: A Systematic Review
Strategies in activating lymphatic system on symptom distress and health-related quality of life in patients with heart failure: secondary analysis of a pilot randomized controlled trial