To describe the dynamic contrast magnetic resonance lymphangiography (DCMRL) findings of three patients with complicated lymphatic anomaly (CLA) and protein losing enteropathy. We further discuss the importance of a mult...To describe the dynamic contrast magnetic resonance lymphangiography (DCMRL) findings of three patients with complicated lymphatic anomaly (CLA) and protein losing enteropathy. We further discuss the importance of a multicompartment (intrahepatic [IH], intramesenteric [IM], and intranodal [IN]) DCMRL in delineating central lymphatic flow pathologies. This is a retrospective study of three patients-one adult and two children who individually underwent the three-compartment DCMRL, namely IN-DCMRL, IH-DCMRL, and IM-DCMCRL. Findings from the results of the DCMRL for these three patients were obtained from the medical records and compared. Using the multicompartment imaging modalities, chylous fluid leakage into the peritoneum was observed using IM-DCMRL and IH-DCMRL but not IN-DCMRL for one of the patients in the case series. In contrast, leakage of chyle into the mediastinum was noted using IN-DCMRL but not IH-DCMRL and IM-DCMRL on another patient in this case series. Owing to the variability in outlining lymphatic flow pathologies, multicompartment imaging gives a more global picture of individual conduction disorders, has the potential to improve clinical assessment, and in some cases leads to a diagnosis of the abnormality and thus provides a better understanding of lymphatic flow anomalies in patients with CLAs.
To demonstrate the magnetic resonance lymphangiography (MRL) imaging findings of lymphatic diseases and the clinical outcomes of lymphatic embolization in pediatric patients. This retrospective study included 10 consecu...To demonstrate the magnetic resonance lymphangiography (MRL) imaging findings of lymphatic diseases and the clinical outcomes of lymphatic embolization in pediatric patients. This retrospective study included 10 consecutive pediatric patients who underwent MRL for lymphatic diseases between June 2017 and June 2021. Nine patients underwent dynamic contrast-enhanced MRL with bilateral inguinal lymph node injection of diluted gadolinium, and one patient underwent nonenhanced MRL with a heavily T2-weighted image. The etiology of lymphatic disease was classified into three categories based on the magnetic resonance findings. The resolution of chylous fluid and weight-adjusted amounts of chylous fluid collected from a drainage tube were evaluated as outcomes. Patients were classified as postoperative lymphatic leak ( = 3), pulmonary lymphatic perfusion syndrome ( = 3), central lymphatic flow disorder (CLFD; = 3), and primary lymphatic dysfunction (Gorham-Stout syndrome; = 1). Three patients underwent radiological lymphatic intervention, and one CLFD patient underwent surgical intervention. In patients with postoperative lymphatic leak, the median chest tube drainage decreased significantly after the intervention [from 87.9 to 12.4 mL/(kg·d); = 0.02]. However, in one CLFD patient, the amount of chylous fluid did not decrease until 7 days after intervention. The etiology of lymphatic disease in pediatrics can be recognized on MRL, and lymphatic intervention can be performed for cessation of lymphatic leak, even though the treatment outcomes may differ according to the underlying etiology. MRL can play an important role in classifying lymphatic disease, and in planning treatment on the basis of the lymphatic anatomy and underlying etiology.
surgery to treat breast cancer (BC) is associated with upper limb (UL) lymphedema, which in some cases may become permanent. It is uncertain whether lymphedema results from injury to either lymphatic or blood vessels, or...surgery to treat breast cancer (BC) is associated with upper limb (UL) lymphedema, which in some cases may become permanent. It is uncertain whether lymphedema results from injury to either lymphatic or blood vessels, or to both. a cohort of 200 BC patients was examined 1, 3, 6, 12, and 24 months after surgery. Axillary and brachial blood vessels were evaluated using Ultrasound, and patients had their UL examined for lymphedema at each visit. Patients who developed lymphedema 24 months after surgery presented with higher mean flow velocity (MFV) and end diastolic velocity (EDV) in both axillary (MFV = 13.57 vs. 10.7 cm/s, = 0.02; EDV = 5.62 vs. 3.47 cm/s; = 0.004) and brachial (MFV = 11.44 vs. 8.74 cm/s; = 0.03; EDV = 5.08 vs. 3.04; = 0.04) arteries as early as 1 month after surgery. Similar associations were found 3, 6, and 12 months after surgery. Early abnormalities of the resistive and pulsatility indexes were also significantly associated with persistent lymphedema. EDV measured 1 month after surgery had the best performance to detect patients who will later develop long-term lymphedema, (sensitivity = 73.7%; specificity = 71.2%; negative predictive value = 57.6%). vascular abnormalities precede and are possible causal factors for UL lymphedema in BC patients.
Kim G, Adondakis M, Smith MP
… +2 more, Singhal D, Tsai LL
Lymphat Res Biol
· 2023 Apr · PMID 35914097
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Secondary upper extremity lymphedema occurs after an insult such as surgery. One theory suggests underlying lymphatic dysfunction predisposing certain patients into developing secondary lymphedema. We aim to determine th...Secondary upper extremity lymphedema occurs after an insult such as surgery. One theory suggests underlying lymphatic dysfunction predisposing certain patients into developing secondary lymphedema. We aim to determine the rate of incidental edema in the contralateral upper extremity of patients with secondary unilateral lymphedema. MRI of the upper extremities were obtained in patients with lymphedema who were referred by a lymphedema clinic from 2017 to 2019. Axial short-tau inversion recovery MR images of the symptomatic and contralateral arms were retrospectively reviewed and edema severity was graded. Interobserver agreement was calculated. Indocyanine green (ICG) lymphography was compared against MRI stage in symptomatic and contralateral. Age, symptom duration, body mass index (BMI), and history of chemotherapy were compared between patients with and without contralateral limb lymphedema. ICG severity was compared against MRI stage. Seventy-eight patients were analyzed. The MRI stages of symptomatic versus contralateral arms were 1.7 ± 1.1 versus 0.1 ± 0.4 ( < 0.00001). Interobserver agreement was 0.86 (0.79-0.94). Of the patients with MRI Stage 1 or above in the symptomatic arm ( = 64), 55 (82.1%) patients demonstrated no abnormality in the contralateral arm. Nine patients (14.1%) demonstrated asymptomatic edema (MRI Stage 1). The mean ICG lymphography stage of symptomatic versus contralateral arms was 1.83 ± 0.96 versus 0.04 ± 0.25 ( < 0.00001). There was no difference in the age, symptom duration, BMI, or history of chemotherapy between patients with or without edema in the contralateral arm. Asymptomatic contralateral edema was detected in 14.1% of patients with unilateral secondary upper extremity lymphedema using MRI modality.
This study aimed to demonstrate the reliability and validity of the Korean version of the Lymphedema Quality of Life (LYMQOL) questionnaire. This study was a multicentered cross-sectional survey of patients with breast...This study aimed to demonstrate the reliability and validity of the Korean version of the Lymphedema Quality of Life (LYMQOL) questionnaire. This study was a multicentered cross-sectional survey of patients with breast cancer-related lymphedema. The LYMQOL-arm questionnaire was translated from English to Korean. This 28-item instrument contains the overall quality of life (QOL) and is categorized into four domains: function, appearance, symptoms, and mood. In addition, the demographics and characteristics of lymphedema were assessed by reviewing the medical records. The LYMQOL-arm, European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30), and Breast Cancer Module 23 (EORTC QLQ-BR23) were administered. The internal consistency of the LYMQOL-arm was analyzed using Cronbach's , and test-retest reliability was examined using the intraclass correlation coefficient (ICC). Concurrent validity was evaluated using Pearson's correlation test between the LYMQOL-arm and the EORTC QLQ instruments. A total of 62 participants were enrolled in the study. All domains of the LYMQOL-arm showed high internal consistency, and the ICC of each domain and overall QOL ranged from 0.836 to 0.956 ( < 0.001). All domains and overall QOL scores of the LYMQOL-arm significantly correlated with most of the EORTC QLQ-C30 and EORTC QLQ-BR23 scales. Furthermore, it revealed a significant association with the degree of perceived edema. The Korean version of the LYMQOL-arm questionnaire has proven its reliability and validity in assessing QOL in patients with breast cancer-related lymphedema.
To analyze the factors influencing lower limb lymphedema (LLL) after cervical cancer surgery and provide a scientific reference for its effective prevention and control. Patients at a tertiary tumor hospital between Jan...To analyze the factors influencing lower limb lymphedema (LLL) after cervical cancer surgery and provide a scientific reference for its effective prevention and control. Patients at a tertiary tumor hospital between January 2010 and January 2020 who received surgical treatment for cervical cancer were included in this study. Patients were divided into lymphedema case group ( = 253) and control group ( = 506) according to lymphedema occurrence, and univariate and multivariate analyses were used to analyze the factors influencing the occurrence of LLL after cervical cancer surgery. Multifactor conditional logistic regression analysis revealed that risk factors for lymphedema occurrence included body mass index, level of education, the presence of preoperative radiotherapy and chemotherapy, radiotherapy within 3 months after postoperative chemoradiotherapy, emergence of coronary heart disease within 3 months, vaginal disease, occurrence of postoperative complications, cervical cancer diagnosis before the manifestation of menstrual abnormalities, and a history of previous surgery. Postoperative LLL after cervical cancer surgery is a chronic progressive disease, and no cure for LLL has been identified. Thus, determining the risk factors associated with LLL occurrence after uterine and cervical cancer surgery and the development of targeted prevention and early intervention strategies is urgently needed.
The safety and feasibility of using kinesiotape as a short-term alternative treatment to compression garments or gloves for hand lymphedema have not been examined. The aim of this study was to examine if kinesiotape coul...The safety and feasibility of using kinesiotape as a short-term alternative treatment to compression garments or gloves for hand lymphedema have not been examined. The aim of this study was to examine if kinesiotape could maintain size and extracellular fluid (ECF) volume of the hand and forearm, as well as upper limb function and quality of life for women with secondary hand lymphedema. Six women with secondary hand lymphedema underwent pretreatment measurements, including hand and digit size using a tape measure; ECF volume using bioimpedance spectroscopy; and patient-reported outcome measurements of upper limb function and quality of life. Kinesiotape was then applied to the dorsum of the hand and left for 48 h, during which participants were asked not to wear compression garments. Posttreatment measurements were completed after kinesiotape removal. Changes in measurements were compared to the smallest detectable change (SDC). Hand size did not change more than the SDC; however, a single affected digit increased in circumference by more than the SDC. Changes of the whole arm ECF volume were less than the SDC. The ECF volume of the dorsum of the hand increased in one and decreased in another participant. The forearm ECF volume decreased in two participants. Upper limb function and quality of life did not change. No adverse event was reported. Short-term kinesiotape use appears to be safe in maintaining the physical presentation of hand lymphedema. However, these results should be examined in a larger sample. The feasibility of using kinesiotape as an alternative treatment to compression requires further investigation. ACTRN12618001232224p, July 23, 2018 retrospectively registered.
Genetic alterations in lymphatic development can lead to microcystic lymphatic malformations (micro LMs). LMs can have both microcystic and macrocytic components or be exclusively one or the other. LMs can result in seri...Genetic alterations in lymphatic development can lead to microcystic lymphatic malformations (micro LMs). LMs can have both microcystic and macrocytic components or be exclusively one or the other. LMs can result in serious, sometimes life-threatening, sequelae. Absent consensus guidelines, treatment has been largely empiric. Recent advances in our understanding of the pathogenesis of micro LMs have provided a foundation for novel therapeutic approaches. This review examines clinical data over the last 10 years on the role of sirolimus, an inhibitor of the PI3K/AKT/mTOR signaling pathway implicated in micro LM development, in the treatment of micro LM. Systematic review of published clinical studies from January 1, 2011, to July 15, 2021, using the PubMed, Google Scholar, and Cochrane Reviews databases, and utilizing delimiters to focus specifically on sirolimus in the treatment of micro LM. A total of 16 studies were identified (13 case studies or case reviews; 3 prospective) that included 52 subjects treated with topical ( = 15) or oral ( = 37) sirolimus for micro LM. Clinically meaningful, long-term improvement (up to 3 years) was noted in 92% (46/50), mostly previously treated subjects. Sirolimus yielded improvements in key manifestations such as lymphatic leakage, bleeding, vesicle bulk, pain, and skin discoloration. Some subjects experienced a rapid onset of effect (within 2 weeks). No unexpected adverse events were seen. Sirolimus appears to be an effective and safe option in the management of cutaneous and complex micro LM. However, prospective, controlled trials are clearly needed to accurately elucidate the benefits and risks of sirolimus in the management of micro LM. ClinicalTrials.gov Identifier: NCT05050149.
Lymphat Res Biol
· 2023 Feb · PMID 35833890
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This study aimed at presenting a prospective surveillance model of care delivered at home for women qualified for surgery due to breast cancer under the epidemic-related restrictions. Women (age ≥18 years, diagnosed wit...This study aimed at presenting a prospective surveillance model of care delivered at home for women qualified for surgery due to breast cancer under the epidemic-related restrictions. Women (age ≥18 years, diagnosed with breast cancer, no clinical features of upper limbs lymphedema, and a volume difference between the limbs <5%, not using any prophylactic compression products) will be provided with comprehensive education in the field of self-measurements and lymphedema prevention. The outcome measures include limb volume (circumferential measurements with a tape at 4 cm intervals), simplified protocol of three measurement points combined with the symptoms monitoring (according to the physical section of Lymphedema Quality of Life Inventory [LyQLI]). We propose a new calculation method as the RACI (relative arm circumference increase) in accordance with previous research-RAVI (relative arm volume increase) and the new proposal-the RACD (relative arm circumference difference). According to cylinder formula it can be calculated that 5% increase in limb volume results in ∼2% change in RACI. Regular appointments will be planned at 3, 6, 9, and 12 months after the enrollment. Additional urgent appointments will be arranged after the home or phone "red flags" (an increase circumference by ≥2%, positive pitting test, and any new symptoms) detection. We hypothesize that performing only three measurements combined with the typical symptoms monitoring would be accurate for lymphedema diagnosis based on the RAVI of ≥5%. Moreover, RACI/RACD increments combined with positive symptoms would correlate with RAVI. The new proposal of protocol can be the optimal solution in COVID-19 pandemic.
Lymphat Res Biol
· 2023 Feb · PMID 35763325
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A previous study reported a new ultrasonography (US) measurement technique to evaluate the cross-sectional area (ΔCSA) of lymphedema in the upper extremity. This ΔCSA correlated well with parameters, such as the circumfe...A previous study reported a new ultrasonography (US) measurement technique to evaluate the cross-sectional area (ΔCSA) of lymphedema in the upper extremity. This ΔCSA correlated well with parameters, such as the circumference, volumetry, and bioimpedance analysis (BIA) in healthy people and upper extremity lymphedema patients. This study examined whether a US measurement technique is clinically useful in patients with lymphedema in the lower extremity. Forty patients diagnosed with unilateral lower extremity lymphedema were enrolled in this study. The subjects' leg circumference, BIA, isokinetic strength, and ΔCSA were examined on the same day. The leg circumference was measured at 15 cm above the knee (AK) and below the knee (BK) crease using a tape measure. BIA was performed by a trained physical therapist, and the data of impedance () at 1 and 5 kHz of each side of the lower limbs and extracellular water (ECW) were used. A fully experienced physician measured soft tissue thickness, the distance between the skin and the fascia of the muscle, three times each at the anterior, medial, posterior, and lateral aspects of the bilateral legs by US at 15 cm AK and BK. The amount of soft tissue in the ΔCSA was calculated using the designed formula from the mean values of the thicknesses. Each parameter was calculated as the ratio of the sound side to the lesion side. The Pearson and Spearman correlation coefficients were used to assess the significance of these parameters. The ratio of ΔCSA measured at 15 cm AK and BK showed strong positive correlations with the circumference difference at the same level (rho = 0.790, = 0.000, and rho = 0.882, = 0.000, respectively). In addition, it showed moderate or strong correlations with the ratio of at 5 and 1 kHz in the BIA of the lower limbs (AK15, = -0.511, = 0.001 and = -0.497, = 0.001; BK15, = -0.780, = 0.000 and = -0.756, = 0.000, respectively). Although ECW and body mass index showed weak positive correlations with the ratio of ΔCSA measured at 15 cm BK, there was no significant correlation between the ratio of ΔCSA and the isokinetic muscle strength. The ΔCSA results showed moderate-to-strong correlations with other conveniently used methods except for the isokinetic muscle strength. As the US ΔCSA technique could measure lymphedema status with a structural consideration, it could also be recommended as a conventional measurement method in patients with upper and lower extremity lymphedema.
Ozdemir K, Citaker S, Diker S
… +4 more, Keser I, Kurukahvecioglu O, Uyar Gocun P, Gulbahar O
Lymphat Res Biol
· 2023 Feb · PMID 35687408
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Recent guidelines recommend avoiding venipuncture to prevent lymphedema for breast cancer patients. This study investigated whether single or multiple sterile venipuncture procedures develop a systemic inflammation or in...Recent guidelines recommend avoiding venipuncture to prevent lymphedema for breast cancer patients. This study investigated whether single or multiple sterile venipuncture procedures develop a systemic inflammation or infection and increase lymphedema in the rabbit ear lymphedema model. Eighteen New Zealand white female rabbits were included. The right ear lymphedema model was created by surgical procedure; then, rabbits were divided into three randomized groups. Single and multiple venipuncture procedures were applied at least the 60th day after surgery for Group I and II, respectively. Group III was a control group. C-reactive protein (CRP) and procalcitonin (PCT) levels were analyzed to determine inflammation and infection. Ear thickness measurements were applied using a vernier caliper to assess the differences in lymphedema between the ears. All rabbits were euthanized on the 90th day after surgery. Histopathological analysis was performed to evaluate lymphedema by measuring tissue thicknesses. Ear thickness measurements showed that ear lymphedema was developed and maintained with surgical operation in all groups ( < 0.05). There was no difference in the ear thickness measurements between and within-groups results ( > 0.05). CRP and PCT levels were below the lower detection levels in all groups. According to the differences of histopathological ear distances, there were significant differences within-groups for all groups ( < 0.05), and no differences were identified between groups ( > 0.05). This experimental study demonstrated that single or multiple sterile venipuncture procedures did not trigger infection or inflammation and did not exacerbate ear lymphedema in the rabbit ear lymphedema model.
Lymphat Res Biol
· 2023 Feb · PMID 35687388
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Breast cancer-related lymphedema (BCRL) is correlated with poor quality of life (QOL). The effects of the management of lymphedema on QOL remain controversial. We analyzed the changes in QOL and identified factors associ...Breast cancer-related lymphedema (BCRL) is correlated with poor quality of life (QOL). The effects of the management of lymphedema on QOL remain controversial. We analyzed the changes in QOL and identified factors associated with its improvement to improve the care of patients with BCRL. A total of 194 patients with BCRL were recruited, and their medical records were reviewed regarding type of surgery, chemotherapy, and radiation. Patients completed the European Organization for Research and Treatment of Cancer Quality of Life Questionnaires, and the volume and circumference of lymphedema were measured. Significant improvements in physical, emotional, cognitive, social, and role functioning, and future perspective were observed after BCRL management. However, the change in the size of lymphedema was not correlated with the change in QOL parameters. The management of BCRL has a beneficial effect on QOL. However, changes in the size of lymphedema did not reflect changes in QOL. Therefore, a comprehensive approach for the management of BCRL beyond reducing the size of lymphedema is recommended to improve QOL.
Lymphat Res Biol
· 2023 Feb · PMID 35687386
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Lymphatic endothelial cells production or modification were closely related to the extracellular matrix (ECM) molecules. The serum hyaluronic acid (HA), laminin (LN), procollagen type III N-peptide (PIIINP), and collagen...Lymphatic endothelial cells production or modification were closely related to the extracellular matrix (ECM) molecules. The serum hyaluronic acid (HA), laminin (LN), procollagen type III N-peptide (PIIINP), and collagen type IV (CGIV) levels were researched to explore the clinical significance of serum ECM proteins in the diagnosis and differentiation of lymphedema. Fifty-five patients were enrolled. They were divided into primary lymphedema (PLE), secondary lymphedema (SLE), and venous edema (VE) groups. Twenty-two healthy controls were also recruited as normal control (NC). Serum HA, LN, PIIINP, and CGIV levels of all subjects were assessed using chemiluminescence immunoassay. Statistical analysis and receiver operating characteristic (ROC) curves were used to data analysis. The serum levels of CGIV were significantly decreased in both PLE and SLE groups compared with those in the NC group. Reduced serum CGIV levels were associated with the severity of lymphedema. The serum levels of CGIV and PIIINP were identified decreased in both PLE and SLE groups compared with those in the VE group. However, the levels of serum HA and LN were not observed significantly changed in both PLE and SLE groups than those in NC or VE group. Furthermore, ROC curve indicated that serum CGIV and PIIINP were capable of providing good diagnostic and differential diagnostic efficacy at the most appropriate cutoff point value. The serum levels of CGIV may have clinical significance in the diagnosis of lymphedema. CGIV and PIIINP may play a role in the differentiation of lymphedema from VE.
Lymphat Res Biol
· 2023 Feb · PMID 35679595
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Head and neck lymphedema is a common condition following head and neck cancer (HNC) treatment, with substantial functional morbidity. This systematic review aimed to (1) identify tools used to assess head and neck lymphe...Head and neck lymphedema is a common condition following head and neck cancer (HNC) treatment, with substantial functional morbidity. This systematic review aimed to (1) identify tools used to assess head and neck lymphedema in HNC patients and (2) determine their validity and reliability. Electronic and hand searches of Prospero, MEDLINE, Cochrane Library, and Embase were searched from their inception until April 2021, and hand searches were independently screened by two reviewers. Studies were included if they were available in English and measured lymphedema in adult HNC patients (aged ≥18 years). Data including psychometric characteristics were extracted and synthesized narratively, with the Quality Assessment of Diagnostic Accuracy Studies-2 and the COnsensus-based Standards for the selection of health Measurement INstruments checklists used to assess risk of bias. Thirty-three studies, reporting 38 assessment tools, were included. Assessments included clinician rating scales, symptom inventories, size measures, measures of internal edema, radiographic and ultrasonographic measures, and quality-of-life measures. Of the 38 measures cited, only 11 had any degree of validation and reliability testing. Risk of bias varied among the different assessment tools. While many tools are used in the assessment of head and neck lymphedema, the majority of these tools lack validation and reliability data. Only one tool, the Head and Neck Lymphedema and Fibrosis Symptom Inventory, met criteria for strong quality assessment. Further efforts to establish a core set of metrics for this complex condition are warranted.
Dhar A, Srivastava A, Pandey RM
… +3 more, Shrestha P, Villet S, Gogia AR
Lymphat Res Biol
· 2023 Feb · PMID 35675677
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Breast cancer-related lymphedema (BCRL) after primary therapy is a common condition, causing physical and psychological distress. Decongestive lymphedema therapy (DLT) using multi-layered compression bandages is an effec...Breast cancer-related lymphedema (BCRL) after primary therapy is a common condition, causing physical and psychological distress. Decongestive lymphedema therapy (DLT) using multi-layered compression bandages is an effective treatment. We conducted a randomized controlled trial evaluating the use of a specific mobilizing bandage (Mobiderm) on lymphedema volume reduction during the intensive phase of DLT. Fifty female BCRL patients were randomized to receive either conventional multi-layered bandages or mobilizing bandaging by using Mobiderm. Affected limb volume and excess volume were evaluated at baseline (D0) and after 15 days. The primary outcome was change in affected limb volume after adjustment for baseline. Symptom scores were evaluated by visual analogue scale (VAS); safety and tolerability were also assessed. Baseline characteristics were comparable. Affected limb volume reduction was observed in both study groups after 15 days: by 19.0% in the Mobiderm arm and 8.6% in controls (adjusted values). The between-group mean difference in adjusted volume reduction at day 15 was 256 mL (95% confidence interval [CI], 92.5 to 421.3 mL; = 0.003) favoring Mobiderm. Reductions in excess volume of 57.3% (Mobiderm) and 25.1% (controls) were observed (adjusted values); with between-group mean difference in adjusted excess volume of 220.2 mL (95% CI, 69.3 to 371.3 mL; = 0.006) favoring Mobiderm. Pain/heaviness VAS scores fell significantly in both groups, with mean reductions of 1.84 (Mobiderm) versus 0.83 (control; = 0.001). Both regimens were well tolerated. The use of Mobiderm in multilayer compression bandaging shows benefit in lymphedema reduction and in alleviating functional symptoms/pain in patients with BRCL.
Lymphat Res Biol
· 2023 Feb · PMID 35675661
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Lipedema of lower limbs is characterized by bilateral accumulations of excess adipose tissue starting from the ankle to the hips and buttocks. The studies with lymphoscintigraphy (LSC) and magnetic resonance (MR) lymphog...Lipedema of lower limbs is characterized by bilateral accumulations of excess adipose tissue starting from the ankle to the hips and buttocks. The studies with lymphoscintigraphy (LSC) and magnetic resonance (MR) lymphography show altered transport index and enlarged lymphatic vessels (LVs). Our studies aimed to investigate the superficial lymph flow, water accumulation, skin and subcutaneous tissue elasticity, and the possibility of using this information to diagnose lipedema. Fifty patients with lipedema and 50 control subjects (women) were included. The Indocyanine Green (ICG) lymphography, LSC, skin water measurement, skin durometry, and deep tissue tonometry were done in all participants. ICG lymphography revealed: (1) Slower lymph flow in lipedema patients; after 3 minutes of feet movement in a horizontal position, the ICG-dyed lymph reached the upper calf level in 8% of lipedema patients compared with 56% in the control group ( ˂ 0.0001). (2) More than three LVs were noticed more often in lipedema patients. (3) The higher number of abnormal LV images at all limb levels and during each observation stage with a statistically significant number of foggy and dilated. (4) Statistically significant higher fluorescent intensity in all limb levels. Skin water concentration was higher in the feet in lipedema ( = 0.000189). Our studies have shown the differences in superficial lymph flow and water concentration between lipedema and normal limbs. Data proove the usefulness of ICG lymphography, skin water concentration and skin and subcutaneous tissue elasticity measurements in diagnosing lipedema.
Burton JS, Sletten AC, Marsh E
… +2 more, Wood MD, Sacks JM
Lymphat Res Biol
· 2023 Feb · PMID 35594294
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Lymphedema is a chronic condition of impaired lymphatic flow that results in limb swelling and debilitation. The pathophysiology of lymphedema is characterized by lymphatic stasis that triggers inflammation, fibrosis, an...Lymphedema is a chronic condition of impaired lymphatic flow that results in limb swelling and debilitation. The pathophysiology of lymphedema is characterized by lymphatic stasis that triggers inflammation, fibrosis, and adipose tissue deposition in the extremities. Most often, this condition occurs in cancer survivors in the years after treatment with combinations of surgery, radiation, or chemotherapy, with the major risk factor being lymph node dissection. Interestingly, obesity and body mass index are independent risk factors for development of lymphedema, suggesting interactions between adipose and lymphatic tissue biology. Currently, treatment of lymphedema involves palliative approaches, including compression garments and physical therapy, and surgical approaches, including liposuction, lymphovenous bypass, and vascularized lymph node transfer. Emerging lymphedema therapies that focus on weight loss or reducing inflammation have been tested in recent clinical trials, yielding mixed results with no effect on limb volumes or changes in bioimpedance measurements. These studies highlight the need for novel therapeutic strategies that target the driving forces of lymphedema. In this light, animal models of lymphedema demonstrate a role of adipose tissue in the progression of lymphedema and suggest these processes may be targeted in the treatment of lymphedema. Herein, we review both conventional and experimental therapies for lymphedema as well as the defining characteristics of its pathophysiology. We place emphasis on the aberrant fibroadipose tissue accumulation in lymphedema and propose a new approach to experimental treatment at the level of adipocyte metabolism.