Rest/Stress Intradermal Lymphoscintigraphy for the Functional Imaging of the Lymphatic System.

PURPOSE: Lymphoscintigraphy is the criterion-standard method for diagnosing lymphedema, and there is no universally standardized imaging modality. In our center, we use a new approach: rest/stress intradermal lymphoscintigraphy. METHODS: We tested 231 consecutive patients with suspected lymphedema. All patients were studied after a complex physical therapy program to reduce edema. Two doses of 99m Tc-nanocolloid were injected intradermally. Two static planar scans were taken at rest following tracer injection. Next, patients performed an isotonic muscular exercise for 2 minutes followed by postexercise scans. Subsequently, a prolonged exercise was performed for 30 to 40 minutes, after which delayed scans were taken. Abnormal patterns were distinguished into minor or major findings, according to severity. RESULTS: We identified superficial lymphatic vessels and regional lymph nodes in approximately 80% of limbs. Deep vessels were visualized in 26% of limbs. Minor findings were reported in 22.7% of limbs examined, whereas major findings were reported in 53.2% of limbs. CONCLUSION: We observed major findings including lymph stagnation, extravasation, or dermal backflow in a significantly higher percentage of limbs with secondary lymphedema than in primary. We also observed the deep lymphatic pathways in a significantly higher percentage of limbs with primary lymphedema. Intradermal radiotracer injection, combined with isotonic muscular exercise, may offer a better and faster imaging of lymphatic pathways, evaluating the effects of muscular exercise on lymphatic drainage. Based on the in-depth information of the lymphatic pathways provided by rest/stress intradermal lymphoscintigraphy, microsurgeons can obtain important functional information to perform supermicrosurgical lymphatic-venous anastomosis or vascularized lymph node transfer.

Lymphaticovenular Anastomosis for Advanced-Stage Peripheral Lymphedema: Expanding Indication and Introducing the Hand/Foot Sign.

BACKGROUND: Effective lymphaticovenular anastomosis (LVA) requires identification of functioning lymphatics, which are not always visible with contrast-based imaging in advanced-stage lymphedema patients. Ultrasound (US) allows to identify preoperatively functioning lymphatic vessels even in limbs severely affected by lymphedema. Moreover, in our experience, we observed an interesting clinical sentry in advanced-stage lymphedema patients, the hand/foot sign that is analyzed in this paper. PATIENTS AND METHODS: From January 2016 to January 2019, 76 consecutive advanced-stage secondary lymphedema patients underwent LVA. Preoperative planning included lymphoscintigraphy, indocyanine-green lymphography (ICG-L) and US. Patients' features, the hand/foot sign (preservation of more normal skin on the dorsum of the hand or foot), lymphatic degeneration, quantitative, qualitative, and composite outcomes at 1-year follow-up were evaluated. RESULTS: An average number of 3±0.1 LVA was performed in upper limb lymphedema (ULL) (range 2-5, 47 patients) and of 4±1.08 LVAs in lower limb lymphedema (LLL) cases (range 4-7, 29 patients). The composite outcome was positive in 45 cases (59.7%). The "negative" hand /foot sign was significantly associated with presence of functioning lymphatic channels. The incidence of adverse outcomes was significantly higher in patients with positive hand/foot sign. CONCLUSION: Patients with no functioning lymphatic vessels detectable by lymphoscintigraphy and ICG-L may still have functioning lymphatic channels that can be identified preoperatively by ultra-high-frequency ultrasound and salvaged by LVA. The "hand/foot sign" is a simple clinical sentry that appears to be correlated with higher probability of being able to localize functional lymphatics for potential lymphovenous bypass surgery.

Cross-Cultural Adaptation and Preliminary Validation of Upper Limb Lymphedema Quality of Life Questionnaire (ULL-27) in Italian Female Patients with Breast Cancer-Related Lymphedema.

Purpose: Lymphedema is one of the most recurrent problems reported by breast cancer survivors, which negatively affects quality of life (QoL). The Upper Limb Lymphedema Quality of Life Questionnaire (ULL-27) is a tool that assesses the QoL in patients with breast cancer-related lymphedema. At present, an Italian adaptation does not exist. The aim of this study is to perform a preliminary cross-cultural validation of the Italian version of the ULL-27. Materials and Methods: A forward-backward translation and cross-cultural adaptation have been performed. One hundred twenty women with lymphedema were evaluated using the Italian version of the ULL-27. The mean age was 60.25 (±11.88) years, and mean body-mass index was 26.35 (5.13) kg/m2. The Functional Assessment of Cancer Therapy-Breast (FACT-B) was analyzed using Pearson's correlation analysis with the ULL-27 to indicate convergent and external construct validity. Cronbach's alpha and factor analysis were used to assess the questionnaire's structure. Results: The internal consistency for the total score of the Italian ULL-27 was high (0.90). Content validity was good because items were understandable for all participants. The alpha coefficients for subscale scores were high. External construct validity was confirmed by expected correlations with comparator scales. However, the factor structure of ULL-27 does not seem to completely reflect the original scale. Conclusions: The Italian version of ULL-27 has good internal consistency and validity. It is a reliable tool for evaluating the QoL of these patients, but additional data should be collected to clarify the factorial structure and test-retest reliability of the scale.

"I Cry. I Simply Cry." An Ethnography of a Lymphedema Summer Camp.

Background: The aim of this study was to explore how self-management is taught, learnt, and experienced during a 3-day educational Lymphedema Camp for parents of children with lymphedema. Methods: Participants (professionals, parents, and children) were observed during camp activities and interviewed informally and formally in focus groups. The embodied nature of the experience expressed by professionals, parents, and researchers became the analytical focus for understanding the felt tensions in the teaching and learning of self-management to families. Findings: The affective sensibilities associated with the uncertainties involved in teaching and learning self-management skills were palpable given that: young people are now expected to take up strict time-consuming self-management regimens (often via the support of a parent) where "evidence-based" outcomes are uncertain or may not match the outcomes wanted by a young person (varying in age and therefore ability or willingness to engage); or where there are tensions within the family; and the variety of different professionals involved means that techniques varied but where these professionals also lacked the necessary skills training to guide them in how to teach self-management. An analytical focus on the distress, doubt, fear, loneliness, guilt, and moralism felt by professionals, parents, and the researchers supports us to identify the character of the problems associated with performing best practice care guidance where there is a lack of practical support or resources for how self-management in this population should be achieved. Conclusion: To avoid these issues more training and research are needed on "how" to self-manage and stop victim-blaming that generates tensions and drives a wedge between the carer and the cared-for. When systemic problems get located with individuals (professionals, parents, or children), this directs our attention and understanding away from systems of care that lack coordination, may be under-resourced, and where effective training is absent.

Development of Self-Efficacy Tools for Parents and Professionals Caring for Children and Young People with Lymphedema (ILF Parent SE and ILF Professional SE).

Background: Self-management is a key aspect of lymphedema treatment and self-efficacy is a key factor linked to long-term adherence to treatment. The study aimed to generate self-efficacy scales to support the care of children and adolescents with lymphedema to support self-management. Methods and Results: Parents of children with lymphedema and the professionals caring for them were recruited during a lymphedema educational camp. Six individual semistructured focus groups were undertaken in Italian, French, and English (three for parents and three for professionals) with simultaneous translation. Scale item generation was developed using interpretative phenomenological analysis and adopted Bandura's self-efficacy concept. Two self-efficacy tools were developed from research with 26 parents and 14 professionals. The parental tool (ILF parent SE) has 6 domains and 44 items: school; home and leisure; understanding the condition and treatment, and managing child and parent emotions. The professional tool (ILF Professional SE) has 4 domains and 21 items. This scale has two parts; the first indicates the level of professional autonomy in decision making, and the second covers assessment and treatment, patient understanding, and managing emotional reactions. Both tools adopt a 0- to 100-point scale using a 10-unit interval with 0 (cannot do) through to 100 (high certainty of being able to do). Initial face validity has been undertaken. Conclusion: Self-efficacy has emerged as a complex issue faced by parents and professionals involved with children and young people with lymphedema. By being able to assess the challenges parents face in self-efficacy individualized programs can be developed that will assist families in managing this complex disease and lead to greater well-being. Increased professional self-awareness will help the development of mentorship programs to support professionals dealing daily with the stress of managing a rare disease in which the outcome may be uncertain.

Rest/stress intradermal lymphoscintigraphy in diagnosis of lipedema.

Lipedema is a chronic and progressive disease characterized by a symmetrical and bilateral swelling of the lower extremities. In general, the feet are not involved. Lipedema is believed to affect nearly 1 in 9 adult women worldwide. Despite this relatively common disease, lipedema is often confused with primary lymphedema or obesity. In clinically advanced lipedema stages, fat continues to build up and may block the lymphatic vessels causing a secondary lymphedema (Lipo-Lymphedema). We consecutively evaluated 54 women with a clinical diagnosis of lower limbs lipedema. Two doses of 99mTc-nanocolloid were injected intradermally at the first intermetatarsal space and in the lateral malleolar area. Two static planar scans were taken at rest immediately following the intradermal injection. Subsequently, all patients were asked to perform an isotonic muscular exercise (stepping) for 2 min. Then, post exercise scans were performed to monitor the tracer pathway. Subsequently, the patient was asked to take a 30-40 min walk (prolonged exercise) and delayed scans were acquired. In early clinical stages, the lymphatic flow is usually preserved and the rest/stress intradermal lymphoscintigraphy may visualize a normal lymphatic drainage with a frequent pattern (tortuous course) of the leg lymphatic pathway. In clinically advanced stages, lymph stagnation areas were observed. Unlike obesity, lipedema fat storage is resistant to dietary regimen, bariatric surgery, and physical activity. Surgical treatment (tumescent liposuction and reductive surgery) is the most effective treatment to remove adipose tissue. Complex decongestive therapies are helpful in reducing the lymph stagnation, especially in patients with advanced lipolymphedema.

Intradermal-Stress-Lymphoscintigraphy in Early Detection and Clinical Management of Secondary Lymphedema: A Pictorial Essay.

Stress-lymphoscintigraphy evaluates the effects of exercise on lymph drainage. Results may predict outcomes of complex physical therapy as a first-line lymphedema treatment. Microsurgical approaches are best in patients with lymphangectasia or dermal backflow. Lymphatic pathway mapping helps plan lympho-venous anastomoses. For improved lymphatic visualization, we suggest a scan at rest, after a quick exercise (stepping or weight lifting for 2 min) and delayed scanning after prolonged symptom limited exercise (walking or hand squeezing for 30-40 min). In advanced lymphedema, identification of lymph pathways and residual regional lymph nodes might be difficult. In these patients, lymph node transplant is suggested.

A Study to Explore the Parental Impact and Challenges of Self-Management in Children and Adolescents Suffering with Lymphedema.

Background: Limited research has shown the impact lymphedema has on children and families. The aim of this study was to explore the parental experience of caring for a child or adolescent with lymphedema and the daily challenges of self-management and self-efficacy. Methods and Results: Participants were recruited during an educational camp for children with lymphedema (N = 26). Three individual semistructured focus groups were undertaken in English, French, and Italian with simultaneous translation. Data were analyzed using interpretative phenomenological analysis. Analysis identified four superordinate themes; the journey, treatment management, independence, and psychosocial impact. Ten subthemes were identified: bandaging/compression, professional support, holistic care, fear, self-efficacy, acceptance, friendship, guilt, distress, and hope. Conclusions: Parental self-management of children with lymphedema is complex and invades many aspects of life. Lack of professional agreement over what constitutes self-management leads to parental confusion and anxiety. Self-management is demanding, and parents are ambivalent to its effectiveness, but choose to persevere through fear of their child's condition deteriorating. Self-efficacy is evident in complex problem solving, despite parents believing that they are not adequately prepared for this.

Compartimental harvesting of dual lymph node flap from the right supraclavicular area for the treatment of lower extremity lymphedema: A case series.

BACKGROUND: We report our clinical experience of a supraclavicular lymph node flap (LNF) using a novel method of harvesting based on the compartimental lymphatic and vascular anatomy of the right posterior neck triangle, which allows to harvest two independent LNFs from the same donor site. PATIENTS AND METHODS: We report a case series of 10 consecutive patients affected by cancer-related lower extremity lymphedema, who underwent compartimental dual LNF transfer from the right supraclavicular area to the affected lower limb, from August 2015 to March 2017. The superficial compartment flap (venous flap along the external jugular vein) was anastomosed in a flow-through fashion along the course of the great saphenous vein in the knee region, whereas the deep compartment flap (transverse cervical artery/vein flap) was anastomosed in an end-to-end fashion to the medial sural artery and comitantes vein. Flap viability was checked by color Doppler ultrasound postoperatively. Patients were assessed preoperatively and underwent follow-up at 6 and 12 months after surgery. Data were prospectively collected. RESULTS: All the flaps resulted to be viable. No major postoperative complications were observed neither at the donor nor at the recipient sites. Patients did not report dysesthesia of the homoteral chest. An overall reduction in the lower extremity lymphedema (LEL) index (mean ±â€¯SD: 33.7 ±â€¯22.5) and an improvement in the lymph flow and tracer appearance time at postoperative lymphoscintigraphy were observed. All the patients reported an improved quality of life after surgery. CONCLUSIONS: Compartimental supraclavicular dual LNF harvest seems promising in the treatment of peripheral lymphedema. Sparing of supraclavicular nerves might reduce the morbidity associated with the conventional surgical approach. Larger studies are needed to confirm our findings. LEVEL OF EVIDENCE: IV, therapeutic study.

Stress Lymphoscintigraphy for Early Detection and Management of Secondary Limb Lymphedema.

Cancer treatments with axillary or pelvic lymph nodes dissection and radiation place patients at lifelong risk for the development of secondary lymphedema. Our aim was to evaluate the role of stress lymphoscintigraphy for early detection and management of secondary lymphedema. METHODS: Stress lymphoscintigraphy was performed within 1 year after surgery and the completion of chemotherapy and radiation treatments. All patients were classified by the International Society of Lymphology clinical stages from 0 to 3. A dose of 50 MBq of 99mTc-HSA-nanocolloidal in 0.4mL was injected intradermally at the first and fourth intermetacarpal spaces on the hand, for the upper limb with edema, or at the first intermetatarsal space and at the lateral malleolus for lower extremities. Two planar static scans at rest were acquired immediately after tracer injection. Stress scans were acquired after weight lifting for upper extremity or stepping for 2 minutes for lower-extremity edema. After that, the patients underwent prolonged muscular exercise limited by symptoms, and later scans were acquired at 60 minutes to visualize regional lymph nodes and the effects of sustained muscular exercise. Transport Index was evaluated. RESULTS: Five patterns of lymphoscintigraphy were observed. In our experience, patients with types I to III pattern benefit from an exercise program as a first-line treatment. Patterns IVand V seem to be predictive of lymphedema. CONCLUSIONS: The abnormal patterns found may provide the basis for earlier complex physical therapy or microsurgical treatment of lymphatic disorders in patients resulting in improved outcomes.

Retrospective trial of complete decongestive physical therapy for lower extremity secondary lymphedema in melanoma patients.

BACKGROUND: Melanoma is a malignant tumour of melanocytes, which are found predominantly in skin, and at least 10-45% of patients develop secondary lymphedema (SL). PURPOSE: This study seeks to investigate if individual's lymphatic system can benefit from complete decongestive physical therapy (CDPT) 1 year after discharge from CDPT and consequently endorsing a better quality of life. METHODS: Male and female(n=12) melanoma survivors 1-4 years post diagnosis with unilateral SL. Questionnaire and limb measurements were used to asses retrospective outcomes. RESULTS: A significant improvements (p<0.05) has been in the categories of localisation, staging, disability and symptoms of SL. CONCLUSIONS: CDPT provides relief in signs and symptoms for patients with SL following groyne dissection.

Intradermal lymphoscintigraphy at rest and after exercise: a new technique for the functional assessment of the lymphatic system in patients with lymphoedema.

AIM: The aim of this study was to evaluate the effect of implementing a new technique, intradermal injection lymphoscintigraphy, at rest and after muscular exercise on the functional assessment of the lymphatic system in a group of patients with delayed or absent lymph drainage. METHODS: We selected 44 patients (32 women and 12 men; 15 of 44 with upper limb and 29 of 44 with lower limb lymphoedema). Thirty of 44 patients had bilateral limb lymphoedema and 14 of 44 had unilateral disease; 14 contralateral normal limbs were used as controls. Twenty-three patients had secondary lymphoedema after lymphadenectomy and the remaining 21 had idiopathic lymphoedema. Each of the 44 patients was injected with 50 MBq (0.3-0.4 ml) of (99m)Tc-albumin-nanocolloid, which was administered intradermally at the first interdigital space of the affected limb. Two planar static scans were performed using a low-energy general-purpose collimator (acquisition matrix 128 x 128, anterior and posterior views for 5 min), and in which drainage was slow or absent, patients were asked to walk or exercise for 2 min. A postexercise scan was then performed to monitor and record the tracer pathway and the tracer appearance time (TAT) in the inguinal or axillary lymph nodes. RESULTS: The postexercise scans showed that (i) 21 limbs (15 lower and six upper limbs) had accelerated tracer drainage and tracer uptake in the inguinal and/or axillary lymph nodes. Two-thirds of these showed lymph stagnation points; (ii) 27 limbs had collateral lymph drainage pathways; (iii) in 11 limbs, there was lymph drainage into the deeper lymphatic channels, with unusual uptake in the popliteal or antecubital lymph nodes; (iv) six limbs had dermal backflow; (v) three limbs did not show lymph drainage (TAT=not applicable). TAT=15 + or - 3 min, ranging from 12 to 32 min in limbs with lymphoedema versus 5 + or - 2 min, ranging from 1 to 12 min in the contralateral normal limbs (P<0.001). CONCLUSION: Intradermal injection lymphoscintigraphy gives a better imaging of the lymph drainage pathways in a shorter time, including cases with advanced lymphoedema. In some patients with lymphoedema, a 2-min exercise can accelerate tracer drainage, showing several compensatory mechanisms of lymph drainage. The effect of the exercise technique on TAT and lymphoscintigraphy findings could result in a more accurate functional assessment of lymphoedema patients.