Current views on diagnostic approach and treatment of lymphedema

Techniques and Outcomes in Microsurgical Treatment of Posttraumatic Lymphedema: A Systematic Review

BACKGROUND

 The microsurgical treatment of lymphedema has been well-studied and has been shown to be effective, especially in cancer-related lymphedema. Posttraumatic lymphedema (PTL) is a debilitating condition that remains understudied and underreported, and surgical techniques for PTL treatment are not well-represented in the literature. The purpose of this study was to systematically review all published reports of physiologic surgical interventions for PTL.

METHODS

 A search was conducted on PubMed, MEDLINE, Embase, and Web of Science, from January 1, 2000 to December 6, 2022, using keywords "PTL," "lymphedema," and "surgery" to identify reports of PTL treated with microsurgical lymphatic reconstruction techniques. PTL cases treated with ablation, debulking, or decongestive therapy were excluded.

RESULTS

 A total of 18 records that met the inclusion criteria were identified, representing 112 patients who underwent microsurgical operations for PTL. This included 60 cases of lymph flow restoration (LFR) via lymph axiality and interpositional flap transfer, 29 vascularized lymph node transfers, 11 lymphatic vessel free flaps, 10 lymphovenous anastomoses (LVAs), and 2 autologous lymphovenous transfers. Outcomes were primarily reported as clinical improvement or LFR by lymphatic imaging. All studies showed qualitative improvement of symptoms and reports with quantitative data showed statistically significant improvements.

CONCLUSION

 PTL is currently underrepresented in lymphedema treatment literature, however, our results show that microsurgical techniques are successful in treating lymphedema in PTL patients. Increasing awareness of PTL and establishing standardized diagnostic criteria and treatment options will help clinicians better understand how to diagnose and treat this condition. Prospective and comparative studies are needed to determine true prevalence of PTL and optimal treatment strategies.

Ultrasound in Microsurgery: Current Applications and New Frontiers

Ultrasound has revolutionized reconstructive microsurgery, offering real-time imaging and enhanced precision allowing for preoperative flap planning, recipient vessel identification and selection, postoperative flap monitoring, and lymphatic surgery. This narrative review of the literature provides an updated evidence-based overlook on the current applications and emerging frontiers of ultrasound in microsurgery, focusing on free tissue transfer and lymphatic surgery. Color duplex ultrasound (CDU) plays a pivotal role in preoperative flap planning and design, providing real-time imaging that enables detailed perforator mapping, perforator suitability assessment, blood flow velocity measurement, and, ultimately, flap design optimization. Ultrasound also aids in recipient vessel selection by providing assessment of caliber, patency, location, and flow velocity of recipient vessels. Postoperatively, ultrasound enables real-time monitoring of flap perfusion, providing early detection of potential flap compromise and improved flap survival rates. In lymphatic surgery, ultra-high frequency ultrasound (UHFUS) offers precise mapping and evaluation of lymphatic vessels, improving efficacy and efficiency by targeting larger dilated vessels. Integrating ultrasound into reconstructive microsurgery represents a significant advancement in the utilization of imaging in the field. With growing accessibility of devices, improved training, and technological advancements, using ultrasound as a key imaging tool offers substantial potential for the evolution of reconstructive microsurgery.

Surgical Treatment for Primary Lymphedema: A Systematic Review of the Literature

This is a retrospective review of surgical management for primary lymphedema. Data were extracted from 55 articles from PubMed MEDLINE, Web of Science, SCOPUS, and Cochrane Central Register of Controlled Trials between the database inception and December 2022 to evaluate the outcomes of lymphaticovenous anastomosis (LVA) and vascularized lymph node transfer (VLNT), and outcomes of soft tissue extirpative procedures such as suction-assisted lipectomy (SAL) and extensive soft tissue excision. Data from 485 patients were compiled; these were treated with LVA ( n  = 177), VLNT ( n  = 82), SAL ( n  = 102), and excisional procedures ( n  = 124). Improvement of the lower extremity lymphedema index, the quality of life (QoL), and lymphedema symptoms were reported in most studies. LVA and VLNT led to symptomatic relief and improved QoL, reaching up to 90 and 61% average circumference reduction, respectively. Cellulitis reduction was reported in 25 and 40% of LVA and VLNT papers, respectively. The extirpative procedures, used mainly in patients with advanced disease, also led to clinical improvement from the volume reduction, as well as reduced incidence of cellulitis, although with poor cosmetic results; 87.5% of these reports recommended postoperative compression garments. The overall complication rates were 1% for LVA, 13% for VLNT, 11% for SAL, and 46% for extirpative procedures. Altogether, only one paper lacked some kind of improvement. Primary lymphedema is amenable to surgical treatment; the currently performed procedures have effectively improved symptoms and QoL in this population. Complication rates are related to the invasiveness of the chosen procedure.

The role of key biomarkers in lymphatic malformation: An updated review

The lymphatic system, crucial for tissue fluid balance and immune surveillance, can be severely impacted by disorders that hinder its activities. Lymphatic malformations (LMs) are caused by fluid accumulation in tissues owing to defects in lymphatic channel formation, the obstruction of lymphatic vessels or injury to lymphatic tissues. Somatic mutations, varying in symptoms based on lesions' location and size, provide insights into their molecular pathogenesis by identifying LMs' genetic causes. In this review, we collected the most recent findings about the role of genetic and inflammatory biomarkers in LMs that control the formation of these malformations. A thorough evaluation of the literature from 2000 to the present was conducted using the PubMed and Google Scholar databases. Although it is obvious that the vascular endothelial growth factor receptor 3 mutation accounts for a significant proportion of LM patients, several mutations in other genes thought to be linked to LM have also been discovered. Also, inflammatory mediators like interleukin-6, interleukin-8, tumor necrosis factor-alpha and mammalian target of rapamycin are the most commonly associated biomarkers with LM. Understanding the mutations and genes expression responsible for the abnormalities in lymphatic endothelial cells could lead to novel therapeutic strategies based on molecular pathways.

Protein@Cyanine-Based NIR-II Lymphography Enables the Supersensitive Visualization of Lymphedema and Tumor Lymphatic Metastasis

Visualization of the lymphatic system is clinically indispensable for the diagnosis and/or treatment of lymphatic diseases. Although indocyanine green (ICG) lymphography becomes an alternate imaging modality compared to traditional lymphoscintigraphy, it is still far from ideal due to the insufficient detection depth and low spatiotemporal resolution. Herein, protein@cyanine probes are rationally developed to solve the limitations of the current near-infrared-I (NIR-I) lymphography. The protein@cyanine probes are synthesized following a chlorine-containing dye-labeling strategy based on structure-selectivity (facile covalent binding between the dye and protein with a 1:1 molar ratio). As expected, the probes display exceptional NIR-II imaging ability with much-improved imaging contrast/resolution and controllable pharmacokinetics, superior to the clinical ICG. The protein@cyanine probes locate lymph nodes and delineate lymphatic vessels with super-high sensitivity and signal-to-background ratio, enabling real-time diagnosing lymphatic diseases such as lymphedema and tumor lymphatic metastasis. In particular, the NIR-II lymphography provides an opportunity to discover the disparate morbidity rate of primary lymphedema in different types of mice. Given the fact of lacking clinically transferable NIR-II probes, this work not only provides a promising strategy for enriching of the current library of NIR-II probes, but also promotes the clinical translation of NIR-II lymphography technology.

Long-term patency of multiple lymphatic-venous anastomoses in cancer-related lymphedema: A single center observational study

OBJECTIVES

Lymphedema is always initially treated by combined decongestive physiotherapy (CDP). Those cases, refractory to CDP, may be managed by surgical therapy. One of the most used microsurgical procedures is represented by the technique of lymphatic-venous anastomosis (LVA). But very few papers report long term results of LVA. The aim of this study is to assess the long-term patency of multiple lymphatic-venous anastomosis (MLVA) for the treatment of secondary lymphedemas.

METHODS

From January 2014 to December 2014, 101 patients (mean age: 56.94 ± 8.98 years; female/male: 86/15) affected by secondary cancer-related lymphedema (38 lower and 63 upper limbs) were treated by MLVA. All lymphedemas had previously been treated by conservative therapy without sustained results. Many patients (78%) had 1-3 episodes of acute lymphangitis/year. Lymphoscintigraphy, venous duplex-ultrasonography, and abdominal or axillary ultrasound investigation were performed preoperatively. MLVA patency was assessed by the lymphatic transport index (LyTI) and lymphoscintigraphic pattern.

RESULTS

At 1 year after surgery, excess volume reduction was 75%-90% in the early stage II secondary lymphedemas, and 60%-75% in the late stage II. The decrease in volume maintained stability in the 5-years follow-up period. Two more advanced lower and one upper limb lymphedemas had 45%-60% reduction. LyTI showed a significant decrease between the preoperative mean value (31.7 ± 9.43) and after 18 months from surgery (11.2 ± 1.91) (p < .001). MLVA patency was shown in 98 (97%) patients. No patients had evidence of postoperative lymphangitis.

CONCLUSIONS

This study demonstrated the long-term patency of MLVA in the treatment of cancer-related lymphedemas.

"Double Barrel" Lymphaticovenous Anastomosis: A Useful Addition to a Supermicrosurgeon's Repertoire

Microsurgical amelioration of lymphedema has gained much traction in recent years and is now an established modality of treatment for this condition. Despite the development of many newer techniques, lymphaticovenous anastomosis still remains the most frequently carried out microsurgical procedure for lymphedema. One of the most common hurdles faced by lymphatic surgeons while carrying out a lymphaticovenous anastomosis is a mismatch in sizes of the vein and the lymphatic vessels.

METHOD

This article describes a novel but simple "double barrel" technique, developed by the authors for carrying out lymphaticovenous anastomosis in cases of such lymphaticovenous mismatch. Seventeen double barrel anastomoses were carried out in 12 lymphedema patients, over a 4-year period from 2017 to 2021.

RESULTS

The overall success rate was 100%, as measured by clinical observation (venous washout, lymphatic backflow), the Acland vessel strip test, and by means of intraoperative ICG lymphography. Mild leakage was observed in four cases after release of the venous clamp and was corrected by application of additional sutures.

CONCLUSIONS

The double barrel technique is a safe and effective tool that can be employed to deal with the bane of size mismatch, a persistent problem faced by lymphedema surgeons universally. Although we do not advocate it as a total replacement for other techniques, it can be a worthy addition to the present set of available options. In specific scenarios of mismatch with additional challenges, the double barrel technique has the potential to be considered as primus inter pares.

Lymphocintilographic evaluation of lymphatic circulation in victims of circuferential degloving injuries of the lower limbs

INTRODUCTION

secondary forms of lymphedema may occur as consequence of tumors, surgeries, radiotherapy, trauma and infections. Degloving injuries are severe and infrequent forms of trauma, with avulsion at the level of muscular fascia, and consequent injury of the lymphatic system.

OBJECTIVE

to evaluate the alterations in lymphatic circulation in patients being victims of circumferential degloving injuries in the lower limbs, using lymphoscintigraphic.

PATIENTS AND METHODS

retrospective analysis of the cases treated in the period from 2010 to 2016. Segmental, circumferential and unilateral injuries with involvement of the lower limbs were included. Lymphoscintigraphy was performed after a minimum interval of 12 months after the end of treatment. The non-injured lower limb was used as control. The Kleinhans Semiquantitative Index (KSI) was used for the semiquantitative evaluation of the lymphoscintigraphic findings.

RESULTS

eighteen patients were evaluated, six of whom were female and 12 were male. The mean age was 28.11 years. The average vertical extension of the circumferential traumatized segment was 29.33cm. The injured area presented variations of 5 to 15% of the body surface, with an average of 8.95%. Lymphoscintigraphy was performed after an average interval of 22.55 months. Alterations were observed on the traumatized limb (TL) in 13 patients. All control limbs (CL) were normal. The mean KSI observed in TL was 8.32, while in CL, the average value was 0.58 (p<0.001).

CONCLUSION

patients with circumferential degloving injuries in the lower limbs present compromised lymphatic circulation and high probability to develop lymphedema.

Supermicrosurgical treatment for lymphedema: a systematic review and network meta-analysis protocol

BACKGROUND

Lymphedema is a condition that affects up to 130 million subjects worldwide. Since it is related to several complications and a significant reduction in terms of quality of life, it is a heavy burden not only to the patients but also for the healthcare system worldwide. Despite the development of supermicrosurgery, such as vascularized lymph node transfer (VLNT) and lymphovenous anastomosis LVA, the indications and outcomes of these complex groups of interventions remain a controversial topic in the field of reconstructive plastic surgery.

METHODS

This systematic review and network meta-analysis aims to assess the evidence of outcomes of LVA and VLNT in patients with lymphedema. Secondary aims of the project are to determine if for any outcomes, LVA or VLNT is superior to conservative therapy alone, and whether the available evidence favors any kind of supermicrosurgical interventions for lymphedema patients. This study will include original studies of patients with lymphedema on the extremities indexed in PubMed, EMBASE, CENTRAL, PASCAL, FRANCIS, ISTEX, LILACS, CNKI, and IndMED that reported microsurgery (supermicrosurgery) of all techniques aiming the re-functionalization of the lymphatic system. As comparators, mere observation, conservative treatment of any kind, and the other subgroups of supermicrosurgery are planned. The primary outcome of this systematic review and network meta-analysis is the difference of the limb volume, while the secondary outcomes of interest will be erysipelas rates, major and minor complications, postoperative necessity of continuous compression garments, and patient satisfaction, measured by already published and validated scores for quality of life.

DISCUSSION

We will provide an overview and evidence grade analysis of the scientific literature available on the effectiveness of the subcategories of supermicrosurgical interventions for lymphedema.

Physiotherapy in the management of gynecological cancer patient: A systematic review

AIM

to evaluate the effectiveness of physiotherapy as an adjunct treatment in patients with gynecological cancer.

METHOD

systematic review carried out in the PubMed, MEDLINE, via VHL, Cochrane and SciELO, in the last ten years. A search strategy was based on the PICO method and the PRISMA flowchart using Boolean descriptors and operators: "gynecological cancer or neoplasms of female genital organs" and "physiotherapy or physiotherapy modalities" and "rehabilitation or quality of life" in languages Portuguese, English, and Spanish.

RESULTS

405 articles were found, and after eligibility criteria, only 5 studies were selected for review. Evidence of a monitored physical exercise, photobiomodulation and pelvic floor rehabilitation program as physiotherapeutic resources in the management of gynecological cancer.

CONCLUSION

Physiotherapy dominates techniques and appears to be beneficial for the main complications arising from the treatment or post-treatment of gynecological cancer and has sought to accompany the knowledge and care of the patient, through scientific research.

Outcomes of Lymphovenous Anastomosis for Upper Extremity Lymphedema: A Systematic Review

BACKGROUND

Lymphovenous anastomosis (LVA) is an accepted microsurgical treatment for lymphedema of the upper extremity (UE). This study summarizes and analyzes recent data on the outcomes associated with LVA for UE lymphedema at varying degrees of severity.

METHODS

A literature search was conducted in the PubMed database to extract articles published through June 19, 2020. Studies reporting data on postoperative improvement in limb circumference/volume or subjective improvement in quality of life for patients with primary or secondary lymphedema of the UE were included. Extracted data consisted of demographic data, number of patients and upper limbs, duration of symptoms before LVA, surgical technique, follow-up, and objective and subjective outcomes.

RESULTS

A total of 92 articles were identified, of which 16 studies were eligible for final inclusion comprising a total of 349 patients and 244 upper limbs. The average age of patients ranged from 38.4 to 64 years. The duration of lymphedema before LVA ranged from 9 months to 7 years. The mean length of follow-up ranged from 6 months to 8 years. Fourteen studies reported an objective improvement in limb circumference or volume measurements following LVA, ranging from 0% to 100%. Patients included had varying severity of lymphedema, ranging from Campisi stage I to IV. The maximal improvement in objective measurements was found in patients with lower stage lymphedema.

CONCLUSION

LVA is a safe, effective technique for the treatment of UE lymphedema refractory to decompressive treatment. Results of LVA indicate greater efficacy in earlier stages of lymphedema before advanced lymphatic sclerosis.

Changing the Paradigm: Lymphovenous Anastomosis in Advanced Stage Lower Extremity Lymphedema

BACKGROUND

Traditionally, lymphovenous anastomosis is not routinely performed in patients with advanced stage lymphedema because of difficulty with identifying functioning lymphatics. This study presents the use of duplex ultrasound and magnetic resonance lymphangiography to identify functional lymphatics and reports the clinical outcome of lymphovenous anastomosis in advanced stage lower extremity lymphedema patients.

METHODS

This was a retrospective study of 42 patients (50 lower limbs) with advanced lymphedema (late stage 2 or 3) that underwent functional lymphovenous anastomoses. Functional lymphatic vessels were identified preoperatively using magnetic resonance lymphangiography and duplex ultrasound.

RESULTS

An average of 4.64 lymphovenous anastomoses were performed per limb using the lymphatics located in the deep fat underneath the superficial fascia. The average diameter of lymphatic vessels was 0.61 mm (range, 0.35 to 1 mm). The average limb volume was reduced 14.0 percent postoperatively, followed by 15.2 percent after 3 months, and 15.5 percent after 6 months and 1 year (p < 0.001). For patients with unilateral lymphedema, 32.4 percent had less than 10 percent volume excess compared to the contralateral side postoperatively, whereas 20.5 percent had more than 20 percent volume excess. The incidence of cellulitis decreased from 0.84 per year to 0.07 per year after surgery (p < 0.001).

CONCLUSION

This study shows that functioning lymphatic vessels can be identified preoperatively using ultrasound and magnetic resonance lymphangiography; thus, lymphovenous anastomoses can effectively reduce the volume of the limb and improve subjective symptoms in patients with advanced stage lymphedema of the lower extremity.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, IV.

Lymph-interpositional-flap transfer (LIFT) based on lymph-axiality concept: Simultaneous soft tissue and lymphatic reconstruction without lymph node transfer or lymphatic anastomosis

BACKGROUND

Lymphatic system is important to maintain homeostasis. Lymph-axiality concept has been reported, which suggests possibility of lymphatic reconstruction using flap transfer without lymph node or supermicrosurgical lymphatic anastomosis.

METHODS

Medical charts of 122 free flap reconstruction cases, either with conventional flap transfer (control) or lymph-interpositional-flap transfer (LIFT), for extremity soft tissue defects including lymphatic pathways were reviewed. Lymph vessels' stumps in a flap were placed as close to those in a recipient site as possible under indocyanine green (ICG) lymphography navigation in LIFT group. LIFT group was subdivided into LIFT(+) and LIFT(-) groups; lymph vessels' stumps could be approximated within 2 cm in LIFT(+) group, whereas those could not be in LIFT(-) group. Lymph flow restoration (LFR) and lymphedema development (LED) rates were compared between the groups on postoperative 6 months.

RESULTS

No flap included lymph node. LFR was observed in 50 cases and LED in 72 cases. LFR rate in LIFT group (n = 75) was significantly higher than that in control group (n = 47) (57.3% vs. 14.9%; P < 0.001). LED rate in LIFT group was significantly lower than that in control group (20.0% vs. 48.9%; P < 0.001). Sub-group analysis showed significantly higher LFR and lower LED rates in LIFT(+) group (n = 44) than those in LIFT(-) group (n = 31; 88.6% vs. 12.9%; P < 0.001, 4.5% vs. 41.9%; P < 0.001).

CONCLUSIONS

LIFT allows simultaneous soft tissue and lymphatic reconstruction without lymph node transfer or lymphatic anastomosis, which prevents development of secondary lymphedema.

Lymphovenous Anastomosis for Treating Lymphedema in IgG4-Related Disease

Immunoglobin G4-related disease (IgG4RD) is a multi-organ immune-mediated condition, and lymphoplasmacytic infiltration is one of the main pathologic features.^1,2 Lower extremity lymphedema is likely to occur if the infiltration involves multiple inguinal lymph nodes and thus disrupting lymphatic transport. Lymphovenous anastomosis (LVA) is a surgical procedure used to treat obstructive lymphedema in extremities^3,4 or in the head and neck area.⁵ It basically reroutes the obstructed lymph flow into patent venous system by making microsurgical anastomosis between lymphatic duct and vein over the swollen area. Herein, we reported a patient with recalcitrant lower extremity lymphedema caused by IgG4RD, whose lymphedema subsided after being treated with LVA.

Treatment of toes as an integrated part of infection control for advanced lower limb lymphedema

The aim of this study was to compare the incidence of infection and verrucous hyperkeratosis in patients who underwent surgery for advanced lymphedema according to the algorithm designed by the senior author, and were treated concurrently with/without toe treatment. A case series (Between 2004-2015) of 46 patients with unilateral advanced lower limb lymphedema was reviewed. Lymphoscintigraphy was used for evaluation of lymphedema severity. The ICG lymphography was used for staging. Fibrosis and skin induration were reflected by the tonicity. They were divided into two groups: (1) patients who underwent further treatment of toes according to the algorithm, and (2) patients who did not have toe-related treatment. Infection episodes and verrucous hyperkeratosis were recorded. There were 21 and 25 patients in Groups 1 and 2, respectively. All lymphoscintigrams showed severe dermal backflow with severe stagnation by 2.5 h after injection of Tc-99 colloid. All patients were stage IV or V. Tonicity values of skin were <60. Group 1 was reduced to an average of 0.6 episodes per year in the past year of follow-up, and Group 2 was reduced to an average of 1.5 episodes per year in the past year of follow-up (p <0.001). The average frequency of preoperative cellulitis was 3.6 episodes per year. The occurrence of verrucous hyperkeratosis was observed in 14.3% and 32% of Groups 1 and 2, respectively. The incidences of cellulitis and verrucous hyperkeratosis were significantly lower in Group 1 than in Group 2 (p <0.001). To achieve successful control of infection, they should be treated carefully according to the strategy described above.

Evidence of stage progression in a novel, validated fluorescence-navigated and microsurgical-assisted secondary lymphedema rodent model

Secondary lymphedema (SL)is a frequent and devastating complication of modern oncological therapy and filarial infections. A lack of a reliable preclinical model to investigate the underlying mechanism of clinical stage progression has limited the development of new therapeutic strategies. Current first line treatment has shown to be merely symptomatic and relies on lifetime use of compression garments and decongestive physiotherapy. In this study, we present the development of a secondary lymphedema model in 35 rats using pre- and intraoperative fluorescence-guided mapping of the lymphatics and microsurgical induction. In contrast to the few models reported so far, we decided to avoid the use of radiation for lymphedema induction. It turned out, that the model is nearly free of complications and capable of generating a statistically significant limb volume increase by water displacement measurements, sustained for at least 48 days. A translational, accurate lymphatic dysfunction was visualized by a novel VIS-NIR X-ray ICG-Clearance-Capacity imaging technology. For the first-time SL stage progression was validated by characteristic histological alterations, such as subdermal mast cell infiltration, adipose tissue deposition, and fibrosis by increased skin collagen content. Immunofluorescence confocal microscopy analysis suggested that stage progression is related to the presence of a characteristic α SMA+/HSP-47+/vimentin+ fibroblast subpopulation phenotype. These findings demonstrate that the in-vivo model is a reliable and clinically relevant SL model for the development of further secondary lymphedema therapeutic strategies and the analysis of the veiled molecular mechanisms of lymphatic dysfunction.

Resource overutilization in the diagnosis of lymphedema praecox

PURPOSE

Primary lymphedema presenting in adolescence is known as lymphedema praecox. Older children presenting with leg swelling are often subjected to a myriad of diagnostic tests. The purpose of this study is to review a large-cohort of patients with lymphedema praecox to determine the fiscal impact of diagnostic testing on these patients.

METHODS

A 13-year review was performed of patients with lymphedema praecox. Information was obtained on demographic parameters, diagnostic studies performed, and clinical outcomes.

RESULTS

Forty-nine patients were identified. The median age was 14 (range: 7-21) years. Participants were predominantly female (n = 40, 81.6%). 19 patients had bilateral disease and 30 had unilateral disease. The diagnosis was made on clinical exam only in 14 patients. 35 patients had imaging which consisted of plain X rays, Doppler ultrasound (DUS), lymphoscintigraphy (LSG) or MRI as the sole imaging study (n = 28) or in combination with others (n = 7). The charges for plain X-rays, DUS, LSG, and MRI with contrast were $335, $1715, $1269, and $6006 respectively.

CONCLUSION

We believe that in the adolescent female with physical findings consistent with lymphedema praecox, diagnostic imaging should be limited to a Doppler ultrasound to rule out a secondary cause of the swelling.

LEVEL OF EVIDENCE

IV TYPE OF EVIDENCE: Case series with no comparison group.

Technical pearls in lymphatic supermicrosurgery

Lymphedema is becoming a major public issue with improvement of cancer survival rate, as the disease is incurable and progressive in nature, and the number of cancer survivor with lymphedema is increasing over time. Surgical treatment is recommended for progressive lymphedema, especially when conservative therapies are ineffective. Among various lymphedema surgeries, supermicrosurgical lymphaticovenular anastomosis (LVA) is becoming popular with its effectiveness and least invasiveness. There are many technical knacks and pitfalls in LVA surgery. In preoperative evaluation, indocyanine green lymphography is recommended for considering indication and incision sites. Intraoperatively, intravascular stenting method, temporary lymphatic expansion maneuver, field-rotating retraction, and several navigation methods are useful. The most important postoperative care is immediate compression after LVA surgery. Compression is critical to keep lymphatic pressure higher than venous pressure, allowing continuous lymph-to-venous bypass flow. These technical pearls should be shared with lymphedema surgeons for better lymphedema management.

A compression device versus compression stockings in long-term therapy of lower limb primary lymphoedema after liposuction

Objective:

Primary lymphoedema is rare and in most cases develops in the lower extremities. In some cases, conservative treatment is insufficient and can be supported by surgical procedure. The aim of this case study was to show the difference in the effectiveness of a compression wrap device and compression stockings in the treatment of primary lymphoedema.

Method:

Before and after liposuction the patient was treated on an outpatient basis every day for three weeks. This consisted of complex decongestive therapy (CDT) including manual lymph drainage, tailored exercises, skin and nail care, compression therapy and intermittent pneumatic compression. After CDT, the patient was provided with a flat-knit compression garment. Measurements were taken at one week and at three months of wearing the compression garment. The oedema severity was measured by summary calculation method. For both healthy and swollen limbs, the sum of circumferences taken at nine fixed measuring points was determined. The difference between these sums expressed in percents was presented as a relative metric coefficient of leg lymphoedema (RMCL).

Results:

At the start of therapy, the difference in circumference between the healthy and swollen limb was 21.85%. After CDT (RMCL: 13.46%), the patient was provided with a flat-knit compression stocking (class 3). After one week, the RMCL was 15.92%, while after three months RCML was 20.84%. Because fluid retention was observed the patient was again treated with CDT (RMCL: 13.89%). The patient was provided with compression stocking (class 4). After one week of wearing, the RMCL was 15.77%, while after three months RMCL was 20.26%. As the results proved unsatisfactory, the patient was treated with CDT (RMCL: 13.60%) and a combination of two class 4 compression stockings was used. After one week, RMCL was 14.91%, while after three months RMCL was 19.25%. As the effects of oedema reduction were insufficient, the patient was treated again with CDT (RMCL: 13.89%) and advised to replace one of the stockings with a CirAid device (adjustable compression wrap). After one week, RMCL was 14.18% and after three months RMCL was 14.76%. The patient then qualified for liposuction (RMCL: 7.81%). At three months after surgery, the compression stocking was replaced by an adjustable compression wrap, to reduce the difference in circumference between healthy and swollen limbs (from 21.85 % to 8.68%).

Conclusion:

This case study shows that in primary oedema one class of compression garment is not always sufficient, nor is the combination of two garments with varying degrees of compression. In some cases, the situation requires the use of non-elastic leg binders such as a CircAid device which, thanks to its greater stiffness, helps improve clinical outcomes.

Comparison of a novel algorithm quantitatively estimating epifascial fibrosis in three-dimensional computed tomography images to other clinical lymphedema grading methods

No method has yet been approved for detecting lymphedema fibrosis before its progression. This study assessed the feasibility of computed tomography-based estimation of fibrosis. This observational, cross-sectional study included patients with lymphedema affecting one limb. Three types (maximum, mean, minimum) of computed tomography reticulation indexes were digitally calculated from trans-axial images using absorptive values, and the computed tomography reticulation indexes compared with clinical scales and measurements. Of 326 patients evaluated by at least one of lymphoscintigraphy, bio-electrical impedance, and computed tomography, 24 were evaluated by all three. The mean number of computed tomography scans in these patients was 109. Sixteen patients had breast cancer, seven had gynecologic cancers, and one had primary lymphedema. Mean computed tomography reticulation index (r = 0.52, p < 0.01) and maximal computed tomography reticulation index (r = 0.45, p < 0.05) were significantly associated with time from initial limb swelling to computed tomography. Mean computed tomography reticulation index (r = 0.86, p < 0.01), minimal computed tomography reticulation index (r = 0.79, p < 0.01), and maximal computed tomography reticulation index (r = 0.68, p < 0.01) were significantly associated with International Society of Lymphedema substage. Minimal computed tomography reticulation index correlated with 1-kHz-based bio-electrical impedance ratio (r = -0.46, p < 0.05) and with standardized proximal limb circumference difference ratio (r = 0.45, p < 0.05) of both limbs. Maximal computed tomography reticulation index had a sensitivity of 0.78, specificity of 0.60, and areas under the curve of 0.66 in detecting lymphoscintigraphic stage IV. The algorithm utilizing three-dimensional computed tomography images of epifascial fibrosis may be used as a marker for lymphedema duration, limb swelling, International Society of Lymphedema substage, and interstitial lymphatic fluids of lymphedema. The current approach shows promise in providing an additional method to assist in characterizing and monitoring lymphedema patients.

Refractory Chylothorax and Lymphedema Caused by Advanced Gastric Cancer

Chylothorax is the accumulation of lipid pleural effusion. Few reports have described chylothorax caused by gastric cancer. A 45-year-old woman presented with progressive lymphedema and bilateral chylothorax. Although repetitive thoracentesis was performed to relieve her dyspnea, swelling of her axillary lymph nodes became significant. Positron emission tomography/computed tomography demonstrated the accumulation of ¹⁸F-fluorodeoxyglucose in these nodes, and a lymph node biopsy showed signet ring cell carcinoma. The primary site was a 0-IIc type lesion in the gastric body that was only detected by upper gastrointestinal endoscopy. The patient was diagnosed with advanced gastric cancer 3.5 months after presentation for chylothorax.

Magnetic Resonance Lymphography of Lymphatic Vessels in Upper Extremity With Breast Cancer-Related Lymphedema

BACKGROUND

Magnetic resonance lymphangiography (MRL) has been proven to be able to visualize pathological lymphatic networks and accompanying complications through subcutaneous injection of commonly used contrast agents. However, no comprehensive prior studies have previously been reported regarding MRL for the evaluation of upper extremity lymphedema in patients with breast cancer-related lymphedema (BCRL). In this study, we establish a novel MRL protocol to characterize the normal and abnormal characteristics of different clinical stages of BCRL in patients using high-spatial-resolution MRL.

METHODS

Fifty females with unilateral upper extremity BCRL underwent MRL. Lymphatic vessel morphology in normal and affected limbs was compared. The appearance, distribution pattern, morphologic characteristics, and maximum transversal diameter of the lymphatic vessels, dermal backflow, and regeneration of lymphatic vessels were analyzed.

RESULTS

Lymph fluid was retained in the subcutis of the affected limbs, and no edema was observed in the subfascial compartment. In stage 1, tortuous and dilated lymphatic vessels exhibited a beaded appearance, and their diameters were larger than those in the contralateral forearm (P < 0.05). In stage 2, the dilated lymphatic vessels exhibited larger diameters. "Dermal backflow" and tiny regenerated lymphatic vessels appeared. The thickened subcutaneous tissue showed a honeycomb pattern induced by soft tissue fibrosis and adipose hypertrophy. In stage 3, disordered and unrecognizable affected lymphatic vessels were observed with many small regenerated lymphatics and confluent dermal backflow; the tissue fibrosis was more serious.

CONCLUSIONS

Each stage presents different characteristics, and the deformity degree of the lymphatic network is consistent with the severity of the disease. Magnetic resonance lymphangiography could provide adequate information for clinical staging in patients with BCRL.

Reliability and validity of Turkish version of Lymphedema Life Impact Scale

Objectives

In this study, we aimed to investigate the validity and reliability of the Turkish adaptation of the Lymphedema Life Impact Scale (LLIS).

Patients and methods

A total of 106 patients (103 females, 3 males; mean age 53.6±11.8 years; range, 28 to 83 years) with lymphedema who were admitted to the lymphedema outpatient clinics of our hospital between May 2016 and November 2016 were included. Reliability of the scale was assessed by internal consistency (Cronbach's alpha coefficient) and test-retest method. Validity of the scale was examined using the factor analysis and correlating the 12-Item Short-Form Health Survey (SF-12), European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30), Disabilities of Arm Shoulder and Hand (DASH), and the Lower Extremity Functional Scale (LEFS).

Results

For internal consistency, Cronbach's alpha coefficients of all subscales ranged between 0.771 and 0.865 and calculated as 0.916 as the total score. In test-retest reliability, the correlation coefficient ranged between 0.963 and 0.985 for each subscale and calculated as 0.991 for the total score. In the validity analysis, factor analysis demonstrated a probable structure of three factors which together explained 58.9% of total variance and the Turkish adaptation of the LLIS correlated with other comparison measures used in this study.

Conclusion

This study shows that the Turkish version of the LLIS is a valid and reliable scale to evaluate the quality of life in the Turkish population with lymphedema.

Results of home-based modified combined decongestive therapy in patients with lower extremity lymphedema

Background/aim

The aim of this study is to present the results of modified combined decongestive therapy (CDT) in patients with lower extremity lymphedema (LEL).

Materials and methods

We retrospectively reviewed 95 patients aged 55.84 ± 15.70 years who had been diagnosed with LEL between May 2015 and May 2017. The patients were treated for 4 weeks with modified CDT, including self-manual lymphatic drainage, self-bandaging, decongestive exercises, and skin care.

Results

The mean reduction amounts of edema volume before and after treatment were 296.05, 784.92, and 1038.50 mL for stages 1, 2, and 3 respectively (P = 0.001). There were significant differences between the values before and after treatment in excess extremity volume (EEV) at all stages (P = 0.001). The EEV percentages of the secondary LEL patients were higher than those of the primary LEL patients (P = 0.04). There was no correlation between BMI and treatment response in terms of EEV percentages (r = –0.99; P = 0.36).

Conclusion

Our results revealed that home-based modified CDT is more effective in reducing extremity edema volume in secondary LEL than primary LEL. It should be an available method for self-management of LEL at all stages.

Modulation of Immunity by Lymphatic Dysfunction in Lymphedema

The debilitating condition known as secondary lymphedema frequently occurs after lymphadenectomy and/or radiotherapy for the treatment of cancer. These therapies can damage lymphatic vessels leading to edema, fibrosis, inflammation and dysregulated adipogenesis, which result in profound swelling of an affected limb. Importantly, lymphedema patients often exhibit impaired immune function which predisposes them to a variety of infections. It is known that lymphadenectomy can compromise the acquisition of adaptive immune responses and antibody production; however the cellular mechanisms involved are poorly understood. Here we discuss recent progress in revealing the cellular and molecular mechanisms underlying poor immune function in secondary lymphedema, which has indicated a key role for regulatory T cells in immunosuppression in this disease. Furthermore, the interaction of CD4⁺ T cells and macrophages has been shown to play a role in driving proliferation of lymphatic endothelial cells and aberrant lymphangiogenesis, which contribute to interstitial fluid accumulation in lymphedema. These new insights into the interplay between lymphatic vessels and the immune system in lymphedema will likely provide opportunities for novel therapeutic approaches designed to improve clinical outcomes in this problematic disease.

The Relationship Between Clinical and Indocyanine Green Staging in Lymphedema

Background: Multiple staging systems for classifying the severity of lymphedema exist. The International Society of Lymphology (ISL) stage is considered standard for clinical reporting, but the relationship between clinical and functional/imaging stage remains poorly defined. Materials and Methods: We reviewed the prospectively collected data of all patients who underwent physiologic lymphedema surgery for a 3-year period by the senior author. Patients who underwent preoperative clinical staging with limb volume calculations and intraoperative indocyanine green (ICG) staging were included. Correlations were examined between ISL stage, ICG stage, and preoperative volume difference. Results: A total of 212 patients met inclusion criteria. ISL stage and preoperative volume difference had a Pearson correlation coefficient of 0.579 [p < 0.001, 95% confidence intervals, CIs (0.479-0.664)]; ICG stage and preoperative volume difference had a Pearson correlation coefficient of 0.338 [p < 0.001, 95% CIs (0.204-0.460)]; and ISL stage and ICG stage had a Pearson correlation coefficient of 0.254 [p < 0.001, 95% CIs (0.114-0.383)]. Conclusion: Clinical ISL stage does not correlate well with ICG stage in patients undergoing physiologic lymphedema surgery.

Quality of life in adults with lymphedema cholestasis syndrome 1

BACKGROUND

LCS1 (Lymphedema Cholestasis Syndrome 1/Aagenaes syndrome) is a rare, hereditary disorder, where the highest known prevalence is in Norway. The disorder is characterized by lymphedema and periodic cholestasis from birth or the neonatal period. This study aimed to examine internal reliability of the SF-36, in addition to the group's overall- and health related quality of life (OQoL and HRQoL) and psychosocial well-being.

METHODS

Twenty adults (aged 18-65) in Norway have been diagnosed with LSC1. Eighteen of these patients were included in the study and completed four questionnaires on overall and health related quality of life and psychosocial well-being: Cantril's Ladder (CL), The Kaasa Test, the SF-36, and a lymphedema anamnesis questionnaire. Demographic data were registered, and 15 of the patients underwent a physical examination of the lymphedema. SF-36 scores were compared with those of 360 age and gender matched controls drawn from an earlier survey of the Norwegian general population. The Mann-Whitney U test and Chi-square (χ²) test were used to test internal differences in the patient group.

RESULTS

Health-related quality of life (HRQOL) was significantly reduced in patients with LSC1 compared to controls, in three out of eight areas, role physical, general health and mental health. Females scored significantly better than males in the patient group in two areas of SF-36, in CL, and in one of three scales of The Kaasa Test. Severe lymphedema was found to be significantly correlated to bodily pain and reduced mental health. The level of education was positively correlated to mental health.

CONCLUSION

Overall quality of life (OQoL), health related quality of life (HRQoL) and psycho-social well-being were good in the patient group, but some dimensions of HRQoL were reduced. More severe extent of lymphedema was associated with poorer HRQoL.

Children and adolescents' experiences of primary lymphoedema: semistructured interview study

BACKGROUND

Congenital lymphoedema is a lifelong condition that has detrimental physical and psychosocial outcomes for young patients and burdensome treatment responsibilities that may hamper patients' motivation for self-management. There is limited research from the perspective of young people with primary lymphoedema. We aimed to describe the experiences and views of children and adolescents with lymphoedema to inform patient-centred practice.

METHODS

Twenty patients (aged 8-21 years) with primary lymphoedema were purposively sampled from two paediatric clinics in Sydney, Australia, to participate in a semistructured interview. The transcripts were analysed thematically.

RESULTS

We identified six themes: reinforcing abnormality (damaging self-esteem, self-consciousness, frustrating restrictions and isolation); negotiating uncertainties (fearing condition worsening, deprioritised and sidelined, questioning cause and permanence, widespread unawareness); vulnerability and caution (avoiding pain and discomfort, preventing severe and permanent consequences, depending on permission, limiting goals and aspirations); disruptive transition (resisting change, losing progress and support, avoiding treatment costs); developing resilience (focusing on the positives, embracing individuality, recalibrating normality, prioritising coping) and taking responsibility (individualising treatment, needing support, external pressure and motivation, sticking to a routine, seeking independence).

CONCLUSION

Children and adolescents learn to adjust to the daily demands of lymphoedema management by individualising and accepting their treatment, but many continue to struggle with their self-esteem and lifestyle restrictions. Strategies are needed to empower young patients to advocate for themselves during their transition to adult care. Treatment plans that minimise social restrictions, address emotional consequences and incorporate patients' preferences could improve adherence, satisfaction and outcomes.

Lymphedema Associated With Primary Amyloidosis: A Case Study

We reported on a 60-year-old man presenting lymphedema of both lower extremities and scrotum for 3 years with unknown cause. We took a computed tomography scan of the lower extremities as a follow-up. There were diffuse subcutaneous edema in both lower extremities and multiple enlarged lymph nodes along the para-aortic and bilateral inguinal areas. For further evaluation, biopsy of an enlarged inguinal lymph node was taken, yielding a diagnosis of primary amyloidosis. A treatment of chemotherapy for amyloidosis was recommended for him. To our knowledge, this is the first report of lymphedema presenting with primary amyloidosis in Asia. This case suggests that primary amyloidosis could be one of the differential diagnoses in patients with lymphedema in the lower extremities.

Health-related quality of life in patients with lymphoedema - a cross-sectional study

INTRODUCTION

Lymphoedema may cause complex problems that can strongly influence patients' health-related quality of life (HRQoL). The main purpose of this study was to investigate the impact of lymphoedema on HRQoL in patients with varying forms of lymphoedema.

METHODS

The Lymphoedema Quality of Life Inventory (LyQLI), measuring three domains, physical, psychosocial and practical, and the Short Form 36 Health Survey Questionnaire (SF-36), measuring eight health domains, were sent to 200 lymphoedema patients. Out of those who answered both questionnaires, 88 patients had lymphoedema secondary to cancer treatment and they additionally received the Functional Assessment of Cancer Therapy Scale-General (FACT-G). The relation between continuous variables and the three domains were analysed by Spearman's correlation coefficients, and Kruskal-Wallis test was used to analyse categorical variables.

RESULTS

Altogether 129 patients completed the LyQLI and SF-36 and 79 of them also completed FACT-G. Twenty per cent had a high mean score (≥2.0) in at least one domain of the LyQLI, thus having a low HRQoL. Lower HRQoL was found in the practical domain of LyQLI in patients with lower limb lymphoedema compared to patient with lymphoedema in upper limb or head/neck (p = 0.002) and in patients working part-time compared to patients working full-time (p = 0.005). The impact on HRQoL tended to decrease with age, with a significant correlation in the psychosocial domain (r_s = 0.194, p = 0.028). Compared with the general Swedish population, patients with lymphoedema scored significantly lower in general health (p = 0.006), vitality (p = 0.002) and social functioning (p = 0.025) assessed by the SF-36. From a cancer-specific view, HRQoL was similar to other Swedish studies using the FACT-G.

CONCLUSIONS

This study indicates that about 20% of the patients with lymphoedema had major impact on their HRQoL. More effort and research is needed to identify, understand and support groups of patients with severe lymphoedema-related problems.

A comprehensive overview on the surgical management of secondary lymphedema of the upper and lower extremities related to prior oncologic therapies

Secondary lymphedema of the upper and lower extremities related to prior oncologic therapies, including cancer surgeries, radiation therapy, and chemotherapy, is a major cause of long-term morbidity in cancer patients. For the upper extremities, it is most commonly associated with prior oncologic therapies for breast cancer, while for the lower extremities, it is most commonly associated with oncologic therapies for gynecologic cancers, urologic cancers, melanoma, and lymphoma. Both non-surgical and surgical management strategies have been developed and utilized, with the primary goal of all management strategies being volume reduction of the affected extremity, improvement in patient symptomology, and the reduction/elimination of resultant extremity-related morbidities, including recurrent infections. Surgical management strategies include: (i) ablative surgical methods (i.e., Charles procedure, suction-assisted lipectomy/liposuction) and (ii) physiologic surgical methods (i.e., lymphaticolymphatic bypass, lymphaticovenular anastomosis, vascularized lymph node transfer, vascularized omental flap transfer). While these surgical management strategies can result in dramatic improvement in extremity-related symptomology and improve quality of life for these cancer patients, many formidable challenges remain for successful management of secondary lymphedema. It is hopeful that ongoing clinical research efforts will ultimately lead to more complete and sustainable treatment strategies and perhaps a cure for secondary lymphedema and its devastating resultant morbidities.

The efficacy of lymphaticovenular anastomosis in breast cancer-related lymphedema

Introduction

Lymphedema can be a debilitating condition, causing a great decrease in a person’s quality of life (QoL). Treatment with lymphaticovenular anastomosis (LVA), in which an anastomosis is created between the lymphatic and venous system, may attenuate lymphedema symptoms and reduce swelling. In this study, we share the results using LVA to treat breast cancer-related lymphedema (BCRL) at our institution.

Materials and methods

Patients were eligible for inclusion if they suffered from unilateral BCRL, if functional lymphatics were available, if compression therapy was used for at least 6 months, and if the follow-up was 12 months at minimum. Lymph vessel functionality was assessed preoperatively using indocyanine green (ICG). During surgery, 1–3 anastomoses were created and shunt patency was confirmed using ICG. Arm volumes were measured before surgery and at 6- and 12-month follow-up. QoL was measured before surgery and at 6-month follow-up. Arm volume differences between the healthy arm and affected arm were compared between the time points.

Results

Twenty-nine consecutive female patients with unilateral BCRL were included. The preoperative mean difference in arm volumes was 701 ± 435 ml (36.9%). This was reduced to 496 ± 302 ml (24.7%) at 6-month follow-up (p = 0.00). At 12-month follow-up, the mean difference in arm volume was 467 ± 303 ml (23.5%) (p = 0.02). The overall perceived QoL was increased from 5.8 ± 1.1 to 7.4 ± 0.7 (p = 0.00). The functionality score decreased from 2.2 to 1.8 (p = 0.00), the appearance score decreased from 2.6 to 1.9 (p = 0.00), the symptoms score decreased from 2.8 to 1.8 (p = 0.00), and the mood score decreased from 2.7 to 1.5 (p = 0.00). Fifteen patients (53.6%) were able to discontinue the use of compression garment.

Conclusion

Treatment with LVAs is effective in reducing arm volume difference in patients suffering from BCRL. Although no complete reduction of the edema was achieved at 12-month follow-up, the procedure significantly increased the patients’ QoL.

Paediatric lymphoedema: A retrospective chart review of 86 cases

AIM

To define the clinical characteristics, investigations, management and outcomes of lymphoedema in a paediatric cohort.

METHODS

A retrospective chart review of children with lymphoedema seen at two tertiary paediatric hospitals since 1998. Telephone interviews with parents were performed when information was missing. Information recorded included demographic data, features of diagnosis and clinical presentation, symptoms, complications and treatment.

RESULTS

A total of 86 patients with lymphoedema were identified. Eighty cases (93%) were primary and six cases (7%) were secondary. Most were female (60%). Location of swelling was most commonly the lower limbs (94%). There were 13 cases (15%) of genital involvement. Swelling presented in the first 12 months of life in 60% of primary lymphoedema patients. Complications of lymphoedema occurred in 73% of patients. Lymphoscintigraphy was the most common investigation used (65%), followed by ultrasound (57%) and magnetic resonance imaging (MRI) (35%). Eight of the 48 (17%) lymphoscintigraphs produced a false negative result or were inconclusive with a correct diagnosis subsequently made clinically and using MRI. Average time to diagnosis was 9 months. Lymphoedema was managed with compression garments (99%), manual lymph drainage (97%) and multilayered bandaging (68%). Eight patients had an operative procedure as a part of management.

CONCLUSIONS

Primary lymphoedema is more common than secondary lymphoedema in children. Onset tends to be during infancy for both males and females, and the lower limb is typically involved. Causes of secondary lymphoedema are diverse and rare. Diagnosis in children is often delayed but is possible based on history and physical examination alone and when further investigation is necessary MRI is effective.

Terapia complexa descongestiva no tratamento intensivo do linfedema: revisão sistemática

RESUMO O linfedema caracteriza-se por acúmulo de proteínas e fluídos no interstício, com alterações físicas e psicológicas. Entre as técnicas fisioterapêuticas utilizadas para redução do linfedema está a terapia complexa descongestiva. O objetivo desta revisão é identificar evidências para a prática da terapia complexa descongestiva no tratamento intensivo do linfedema. Realizou-se uma busca nas bases de dados PubMed, EMBASE e PEDro. Os artigos selecionados foram estudos randomizados e de coorte, os quais foram avaliados e selecionados de forma independente por dois revisores, que avaliaram a qualidade metodológica dos estudos com a escala PEDro. As buscas resultaram em 414 estudos, depois foram reduzidos a sete estudos elegíveis para análise de qualidade, classificados pela escala PEDro como qualidade alta e eficácia moderada. Os artigos analisados apresentaram boa qualidade metodológica, e seus resultados evidenciaram a efetividade da terapia complexa descongestiva na redução do volume do linfedema no tratamento intensivo.

A Review of Engineering Approaches for Lymphedema Detection

Edema is a condition characterized by excessive swelling of a tissue due to an abnormal accumulation of interstitial fluid in the subcutaneous tissue. More specifically, disruption of the lymphatic system causes what is known as lymphedema. This condition is commonly seen in breast cancer survivors postradiotherapy treatment, chemotherapy, and surgeries; this population has shown high risk of developing lymphedema in the limbs. Throughout the years, several techniques have been developed and implemented for the detection and measurement of lymphedema, including techniques to measure the diseased limb volume, electrical techniques to measure the water content in tissues, and optical techniques to measure either tissue absorbance or limb volume. However, there is still no method that allows for continuous monitoring of the disease and provides a better understanding of its progression. This study describes the different approaches that have been used and that could be used for lymphedema measurement.

Comprehensive review of vascularized lymph node transfers for lymphedema: Outcomes and complications

INTRODUCTION

Lymphedema remains a challenging clinical problem. A new field of lymphatic surgery using micro and super microsurgery techniques is a rapidly advancing field aimed to treat recalcitrant cases. The objective of this study was to evaluate outcomes and complications of vascularized lymph node transfer (VLNT). Several early preliminary studies have reported promising outcomes, but they are limited by small numbers, short follow-up, and are inconsistent in addressing the origin and recipient site of the transferred lymph nodes as well as the donor site morbidity.

METHODS

A review of literature was conducted using PubMed-MEDLINE, EMBASE for key words vascularized lymph node transfer (also autologous, lymph node transplant). Only human studies were included.

RESULTS

A total 24 studies encompassing 271 vascularized lymph node transfers were included. The inguinal nodes were the most commonly used donor site followed by the lateral thoracic lymph nodes. The lateral thoracic lymph nodes were the least effective and had the highest complication rates (27.5%) compared to other lymph node donor sites (inguinal: 10.3% and supraclavicular: 5.6%). Upper extremity lymphedema responded better compared to lower extremity (74.2 vs. 53.2%), but there was no difference in placing the lymph nodes more proximally versus distally on the extremity (proximal: 76.9% vs. distal: 80.4%).

CONCLUSION

Vascularized lymph node transfer for lymphedema treatment is a promising operative technique showing beneficial results in early but also in advanced stage lymphedema. This physiologic surgical procedure should be included in a modern reconstructive concept for lymphedema treatment. © 2016 Wiley Periodicals, Inc. Microsurgery 38:222-229, 2018.

A Comparison of the Quality of Life in Patients With Primary and Secondary Lower Limb Lymphedema: A Mixed-Methods Study

Patients with lower limb lymphedema experience symptoms that may differ in intensity and distress. This mixed-methods study compares symptom intensity and distress and the impact of lymphedema on patients' quality of life by primary and secondary (cancer and noncancer) lymphedema groups. Individuals completed an online questionnaire (i.e., demographic form, Lymphedema Symptom Intensity and Distress Survey-Leg, and an open-ended question). Analyses included descriptive and inferential statistics (quantitative data) and content analysis (qualitative data). Participants differed statistically significantly by gender, employment status, and lymphedema location. Groups differed significantly in lack of self-confidence, χ(2)(df = 2) = 9.19, p = .010. Cancer patients reported higher intensity and distress scores for some symptoms, but these differences were not statistically significant. Patients reported lacking psychosocial well-being and resources and experiencing physical and functional impairments and treatment and care challenges. Patients with lower limb lymphedema experience psychosocial impairments and problems with quality of and access to care.

Chylothorax and lymphedema as the initial manifestations of gastric carcinoma: A case report and review of the literature

Chylothorax is the accumulation of lymph fluid in the pleura. Gastric carcinoma with chylothorax and lymphedema as the initial manifestations has rarely been reported, with only 14 cases reported to date. The mechanisms of gastric carcinoma generating chylothorax have not yet been determined. The current study reports the case of a 63-year-old woman presenting with chylothorax and lower extremity lymphedema, and reviews the existing literature. A chest radiograph performed on the present patient revealed large pleural effusion and chylothorax was diagnosed. Upper gastrointestinal endoscopy identified an irregular apophysis lesion and a biopsy confirmed poorly differentiated gastric adenocarcinoma. The patient was discharged at her request, and subsequently succumbed to the disease 4.5 months later. Based on the findings of the present study, as well as those of the literature, we proposed a novel form of gastric carcinoma infiltrating the body. Chylothorax and lymphedema may be a consequence of gastric carcinoma cells infiltrating the lymphatic circulatory system; therefore, the differential diagnosis of chylothorax and lymphedema of unknown cause should consider gastric carcinoma, regardless of gastrointestinal symptoms.

Vascularized Free Lymph Node Flap Transfer in Advanced Lymphedema Patient after Axillary Lymph Node Dissection

Lymphedema is a condition characterized by tissue swelling caused by localized fluid retention. Advanced lymphedema is characterized by irreversible skin fibrosis (stage IIIb) and nonpitting edema, with leather-like skin, skin crypts, and ulcers with or without involvement of the toes (stage IVa and IVb, respectively). Recently, surgical treatment of advanced lymphedema has been a challenging reconstructive modality. Microvascular techniques such as lymphaticovenous anastomosis and vascularized lymph node flap transfer are effective for early stage lymphedema. In this study, we performed a two-stage operation in an advanced lymphedema patient. First, a debulking procedure was performed using liposuction. A vascularized free lymph node flap transfer was then conducted 10 weeks after the first operation. In this case, good results were obtained, with reduced circumferences in various parts of the upper extremity noted immediately postoperation.

Symptom Frequency, Intensity, and Distress in Patients with Lower Limb Lymphedema

BACKGROUND

Patients with lower limb lymphedema experience symptoms of pain, swelling, tightness, and heaviness in their legs. Less is known of the intensity and distress associated with these symptoms. This study sought to identify and compare the symptoms and the level of intensity and distress associated with symptoms by type of lymphatic disruption.

METHODS AND RESULTS

A cross-sectional design was used. Patients completed an online survey that included: a demographic form, the Lymphedema Symptom Intensity and Distress Survey-Leg, and an open-ended question. The most prevalent symptoms were swelling, concerns about looks, heaviness, tightness, fatigue, and reduced physical activity. Statistically significant differences were found among groups in coldness in legs (χ(2) (df=3) = 9.0, p = 0.03), lack of confidence in self (χ(2) (df=3) = 10.6, p = 0.014), and feeling less sexually attractive (χ(2) (df=6) = 12.6, p = 0.049). Group differences were also observed in the intensity of heaviness (χ(2) (df=3) = 9.11, p = 0.03), numbness, (χ(2) (df=3) = 10.66, p = 0.014), achiness (χ(2) (df=3) = 12.40, p = 0.006), skin flakiness (χ(2) (df=3) = 13.22, p = 0.004), and lack of interest in sex (χ(2) (df=3) = 8.95, p = 0.030). Statistically significant group differences were not found in distress related to symptoms.

CONCLUSIONS

Despite the number of symptoms reported by patients with lower-limb lymphedema, only a few statistically significant differences in symptoms and level of intensity were observed by type of lymphatic disruption. No statistically significant group differences were found in the distress level associated with any of the symptoms.

Indocyanine Green Lymphography Findings in Primary Leg Lymphedema

OBJECTIVES

Indocyanine green (ICG) lymphography has been reported to be useful for the evaluation of secondary lymphedema, but no study has reported characteristic findings of ICG lymphography in primary lymphedema. This study aimed to classify characteristic ICG lymphography patterns in primary lymphedema.

METHODS

The study was a retrospective observational study. Thirty one primary lower extremity lymphedema (LEL) patients with a total of 62 legs were studied. ICG lymphography patterns were categorized according to the visibility of lymphatics and dermal backflow (DB) extension. Clinical demographics were compared with categorized ICG lymphography patterns.

RESULTS

All symptomatic legs showed abnormal patterns, and all asymptomatic legs showed normal patterns on ICG lymphography. Abnormal lymphographic patterns could be classified into proximal DB (PDB), distal DB (DDB), less enhancement (LE), and no enhancement (NE) patterns. There were significant differences between PDB (16 patients), DDB (6 patients), LE (4 patients), and NE patterns (5 patients) in age (37.3 ± 18.3 vs. 61.8 ± 19.2 vs. 50.8 ± 27.7 vs. 29.2 ± 18.0 years, p = .035), onset of edema (23.9 ± 19.4 vs. 46.8 ± 27.0 vs. 43.0 ± 31.3 vs. 6.6 ± 14.2 years, p = .020), laterality (bilateral; 18.8% vs. 66.7% vs. 75.0% vs. 0%, p ¼ .016), cellulitis history(56.3% vs. 100% vs. 25.0% vs. 0%, p ¼ .007), and LEL index (292.2 ± 32.8 vs. 254.2 ± 28.6 vs. 243.3 ± 9.4 vs. 295.2 ± 44.8, p = .016).

CONCLUSIONS

ICG lymphography findings in primary lymphedema could be classified into four patterns withdifferent patient characteristics.

Lymphedema Quality of Life Inventory (LyQLI)-Development and investigation of validity and reliability

PURPOSE

The purpose of this study was to reduce the 188-item Swedish Lymphedema Quality of Life Inventory (SLQOLI) to an abbreviated, clinically useful version (phase 1) and to test it for reliability and validity (phase 2).

METHODS

In phase 1 correlation analysis, factor analysis, content validity assessment and expert panels were used to reduce the number of items in SLQOLI to 45 items, which was named, Lymphedema Quality of Life Inventory (LyQLI). In phase 2, LyQLI was sent to 200 patients with lymphedema. 126 patients completed the questionnaire twice to determine stability of the instrument over time. SF-36 was sent to the patients once, correlations between the three domains in LyQLI and the two sum scores Physical Health (PCS) and Mental Health (MCS) in SF-36 were used to assess concurrent validity.

RESULTS

The 188-item SLQOLI was reduced to 45-item LyQLI. Four domains were reduced to three: physical, psychosocial and practical. Reliability estimates using ICC for the physical and psychosocial domains were 0.88 (p < 0.01) and 0.87 (p < 0.01), for the practical domain 0.87 (p < 0.01). Cronbach's alpha coefficients for the three domains were 0.88, 0.92 and 0.88, respectively. The physical domain correlated highly significantly with PCS, psychosocial highly significantly with MCS and practical equally highly significantly to both PCS and MCS. Using skewness coefficients, small floor effects in the items were found.

CONCLUSION

The shorter LyQLI demonstrated good reliability and validity with potential use to assess quality of life in clinic settings and in further cross-sectional studies of patients with lymphedema.

Incidence and time path of lymphedema in sentinel node negative breast cancer patients: a systematic review

OBJECTIVE

To systematically assess the incidence/prevalence and time path of lymphedema in patients with sentinel node-negative breast cancer.

DATA SOURCES

A systematic literature search up to November 2013 was performed using 4 different electronic databases: PubMed, Embase, Cochrane Clinical Trials, and Web of Science.

STUDY SELECTION

Inclusion criteria were as follows: (1) research studies that included breast cancer patients who were surgically treated using the sentinel lymph node biopsy (SLNB) technique; (2) sentinel node-negative patients; (3) studies that investigated lymphedema as a primary or secondary outcome; (4) data extraction for the incidence or time path of lymphedema was possible; and (5) publication date starting from January 1, 2001. Exclusion criteria were as follows: (1) reviews or case studies; (2) patients who had an SLNB followed by an axillary lymph node dissection (ALND); (3) results of ALND patients and SLNB patients not described separately; and (4) studies not written in English.

DATA EXTRACTION

After scoring the methodological quality of the selected studies, the crude data concerning the incidence of lymphedema were extracted. Data concerning the time points and the incidence of lymphedema were also extracted.

DATA SYNTHESIS

Twenty-eight articles were included, representing 9588 SLNB-negative patients. The overall incidence of lymphedema in patients with sentinel node-negative breast cancer ranged from 0% to 63.4%. The studies that have assessed lymphedema at predefined time points, instead of a mean follow-up time, demonstrated an incidence range at ≤3, 6, 12, 18, or >18 months postsurgery of 3.2% to 5%, 2% to 10%, 3% to 63.4%, 6.6% to 7%, and 6.9% to 8.2%, respectively.

CONCLUSIONS

In SLNB patients, lymphedema is still a problem, mostly occurring 6 to 12 months after surgery. Because of different assessments and criteria, there is a wide range in incidence. Clear definitions of lymphedema are absolutely necessary to tailor therapy.