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Background: Our aim is to propose a framework for the development of a research case definition of lipedema, based on current available literature and those observations that can be applied to future lipedema research with the intent to standardize and strengthen the scientific evidence base. Methods and Results: We conducted a narrative review of the literature, and identified consensus characteristics and disputed characteristics that could be included in a research case definition of lipedema. After considering the strength of the evidence and how each characteristic might be measured in a research study, we recommended an approach for the development of a research case definition of lipedema that would be based on consideration of five agreed-upon characteristics, and five disputed, or less substantiated, characteristics as additional evidence to enhance specificity. Conclusions: We present a case definition framework for lipedema drawn from the scientific literature that can be applied to future studies on lipedema. Utilizing this framework should help to increase the sensitivity and specificity of case definition and provide an opportunity for meta-analysis of clinical studies and facilitate future research intercomparisons.

Lipoedema is the disproportionate accumulation of adipose tissue in the lower body, often associated with hormonal changes in women. Lipoedema is commonly misdiagnosed as lymphoedema or obesity due to similarities in appearance. The aim of this study is to compare body composition and fluid measures of women with lipoedema, lymphoedema, and matched control participants, to determine differences that may help distinguish between each condition. One hundred and eleven participants aged over 18, who presented with the complaint of leg swelling and underwent indocyanine green lymphography were included in this study. Our analysis showed that the individuals with lymphoedema had a significantly higher overall total body water (lymphoedema: 9.6 ± 4.2 L, lipoedema: 7.4 ± 2.3 L, control: 7.5 ± 1.8 L; p < .001) and extracellular fluid (lymphoedema: 4.6 ± 1.6, lipoedema: 3.4 ± 1.0 L, control: 3.5 ± 0.7 L; p < .001) in the legs when compared to individuals with lipoedema and matched control participants. Individuals with lipoedema had a significantly higher overall fat mass as a percentage of body weight when compared to individuals with lymphoedema (lymphoedema: 33.1% ± 9.5%, lipoedema: 39.4% ± 6.5%; p = .003). We are unable to distinguish between individuals with lipoedema and control participants, therefore further research needs to be conducted to help reduce misdiagnosis.

Body mass index (BMI) is seen as a predictor of cardiovascular disease (CVD) in lipedema patients. A valid predictor of CVD is increased aortic stiffness (IAS), and previous research described IAS in lipedema. However, it is not known if this applies to all patients. In this cross-sectional single-center cohort study, peripheral pulse wave velocity (PWV) as a non-invasive indicator of aortic stiffness was measured in 41 patients with lipedema, irrespective of stage and without pre-existing cardiovascular conditions or a history of smoking and a maximum body mass index (BMI) of 35 kg/m2. Automatically electrocardiogram-triggered oscillometric sensor technology by the Gesenius-Keller method was used. Regardless of the stage of lipedema disease, there was no significant difference in PWV compared to published standard values adjusted to age and blood pressure. BMI alone is not a predictor of cardiovascular risk in lipedema patients. Measuring other anthropometric factors, such as the waist-hip ratio or waist-height ratio, should be included, and the existing cardiovascular risk factors, comorbidities, and adipose tissue distribution for accurate risk stratification should be taken into account. Automated sensor technology recording the PWV represents a valid and reliable method for health monitoring and early detection of cardiovascular risks.

Lipedema, a chronic and painful disorder primarily affecting women without a definitive cure, has traditionally been managed with conservative therapy, notably complete decongestive therapy, across many countries. Recently, liposuction has been explored as a potential surgical treatment, prompting this study to evaluate its effectiveness as possibly the first-line therapy for lipedema. Through extensive literature searches in databases such as CrossRef, Web of Science, PubMed, and Google Scholar up to December 2023, and using the Newcastle-Ottawa Scale for quality assessment, the study selected seven studies for inclusion. Results showed significant post-operative improvements in spontaneous pain, edema, bruising, mobility, and quality of life among lipedema patients undergoing liposuction. However, over half of the patients still required conservative therapy after surgery. Despite these promising results, the study suggests caution due to lipedema's complexity, significant reliance on self-reported data, and limitations of the studies reviewed. Thus, while liposuction may offer symptomatic relief, it should be considered an adjunct, experimental therapy rather than a definitive cure, emphasizing the need for a comprehensive approach to care.

Background: Lipedema is a progressive condition involving excessive deposition of subcutaneous adipose tissue, predominantly in the lower limbs, which severely compromises quality of life. Despite the impact of lipedema, its molecular and genetic bases are poorly understood, making diagnosis and treatment difficult. Historical evaluation of individuals with lipedema indicates a positive family history in 60%-80% of cases; however, genetic investigation of larger family cohorts is required. Here, we report the largest family-based sequencing study to date, aimed at identifying genetic changes that contribute to lipedema. Methods and Results: DNA samples from 31 individuals from 9 lipedema families were analyzed to reveal genetic variants predicted to alter protein function, yielding candidate variants in 469 genes. We did not identify any individual genes that contained likely disease-causing variants across all participating families. However, gene ontology analysis highlighted vasopressin receptor activity, microfibril binding, and patched binding as statistically significantly overrepresented categories for the set of candidate variants. Conclusions: Our study suggests that lipedema is not caused by a single exomic genetic factor, providing support for the hypothesis of genetic heterogeneity in the etiology of lipedema. As the largest study of its kind in the lipedema field, the results advance our understanding of the disease and provide a roadmap for future research aimed at improving the lives of those affected by lipedema.

Background: Lymphedema and lipedema are debilitating conditions with no proven drug or surgical therapy. Effective treatment requires self-management through movement and compression to reduce limb volume and the incidence of cellulitis. The addition of personalized everyday physical activity (PA) could be transformative, increasing the therapy window to include all waking hours per week and enabling an increased dose of PA. Aim: This service evaluation aimed to determine the feasibility of LymphActiv as a treatment option for lymphedema and lipedema patients. Methods: This service evaluation followed an open observational cohort design, including 55 patients who participated in LymphActiv over 24 weeks. Patients wore an objective PA monitor and interacted with their data in an online dashboard, alongside remote mentor support. Primary outcomes were changes to PA, body weight, limb volume and quality of life. Clinical assessments occurred at baseline and after the 24-week program. Noncompleters were used as a quasi-control group for comparison. Results: Thirty-seven patients completed, of which 81% improved PA. On average, completers reduced their right and left lower limb volumes by -1.8% and -2.1%, respectively. Completers also experienced small average weight losses of -1.2 kg. Noncompleters experienced small average increases in each of these outcome measures. Discussion: These results establish the value of LymphActiv, providing benefit to patients who might otherwise have deteriorated. For services, this could lead to substantial cost-savings through reduced admissions, greater patient independence, and less need for community health care input. The next step is to undertake a randomized, controlled trial comparing the intervention with standard care.

We conducted a comparative study involving 39 female patients with lipedema and group-matched controls at a ratio of 1:5. The primary survey tool was the German Health Update (GEDA 2019/2020-EHIS) questionnaire, which was developed by the Robert Koch Institute (RKI), Germany. The secondary survey tool was the German Pain Questionnaire. The prevalence of hypertension (p = 0.041) and high blood lipids (p = 0.024) was lower in the lipedema group compared to the control group. General health and well-being indicators demonstrated lower overall health ratings (p < 0.001) and higher physiotherapy use in patients with lipedema (p = 0.016). Mental health assessment revealed higher depression prevalence and severity (p = 0.001), together with a lower number of close contacts (p = 0.032). Furthermore, patients with lipedema experienced higher levels of pain (p < 0.001) and more significant pain-related disability in daily activities (p < 0.001) than controls. Correlation analysis among patients with lipedema showed a positive correlation between pain severity and depressive symptoms (ρ = 0.612, p < 0.001) and a moderate positive correlation with impaired health-related quality of life (ρ = 0.418, p = 0.010). In summary, our findings highlight significant differences in health and well-being between patients with lipedema and matched controls, especially in overall, metabolic, and mental health, as well as pain perception. The findings emphasize the need for a validated lipedema-specific questionnaire and a multidisciplinary treatment approach with a combination of physical therapies, lifestyle adjustments, and psychological strategies.

BACKGROUND: Lipedema is characterized by the painful abnormal deposition of adipose tissue in the lower limbs and is often misdiagnosed as obesity. Considering the numerous bothersome physical symptoms of lipedema, women with lipedema may have greater disability and emotional problems than women with lifestyle-induced obesity. OBJECTIVES: Our study aims to assess disability, anxiety and depression symptoms in women with lipedema compared to women with overweight/obesity. MATERIAL AND METHODS: Women with lipedema (n = 45, with a mean age of 41 years) and women who are overweight/obese (n = 43, with a mean age of 44.95 years) were asked to complete the following questionnaires: The World Health Organization Disability Assessment Schedule (WHO-DAS II), Beck's Depression Inventory - II (BDI-II), and The Hospital Anxiety and Depression Scale (HADS). RESULTS: Despite the higher BMI in the overweight/obesity group, the group with lipedema was more disabled in numerous domains of the WHO-DAS II questionnaire, including Life activities - domestic, work and school responsibilities and Participation in society When the influence of BMI was adjusted, a difference in the domain of Mobility was also present. The study groups did not differ in anxiety and depression symptoms. CONCLUSIONS: We showed that behavioral impairment was the main factor affecting functioning in women with lipedema. Emotional symptoms did not differentiate the study groups. Leg volumes and adipose tissue pain intensity were associated with greater disability in women with lipedema, and should be considered in managing women with this condition and in future research estimating the effectiveness of lipedema treatment.

BACKGROUND: The study examines, for the first time, the impact on quality of life after liposuction for lipoedema. The influence of aesthetic plastic interventions and their effects on treatment outcomes has been a major focus of our research group over the past 20 years. METHODS: A total of 35 patients were invited to participate in our prospective study, with 30 responding to both the pre- and postoperative questionnaires. The patients received the questionnaires pre-operatively, and 6 months after the liposuction. Our questionnaire set included a self-developed, indication-specific part, along with standardised and validated questionnaires such as the Questions on Life Satisfaction (FLZM), Patient Health Questionnaire (PHQ-4), Rosenberg Self-Esteem Scale (RSES) and the Freiburg personality inventory-revised (FPI-R). RESULTS: Our self-developed questionnaire showed that our patients feel more balanced, more attractive and more self-confident after the treatment. The FLZM showed significant improvements in all three modules: the general satisfaction with life, the state of health and the outer appearance (body image). Using the PHQ-4, a significant improvement in the two subscales of anxiety and depression could be determined, as well as a reduction in overall mental stress. In addition, the RSES showed a significant improvement in self-esteem post-operatively. Furthermore, the FPI-R indicated a significant improvement in emotional stability. CONCLUSIONS: Liposuction improves the quality of life in lipoedema patients. Post-operatively, our patients reported less pain and were more satisfied with their bodies and appearance. The hypothesis that liposuction in lipoedema improves the quality of life as a multidimensional construct could be confirmed.

As awareness increases about this condition of abnormal fat, so too does interest in how to treat it.

BACKGROUND: Patients with lymphedema and lipedema share physical exam findings that may lead to misdiagnosis. Poor mobility is common in patients with obesity and patients with lymphedema and lipedema. This may constitute a risk factor for venous thromboembolism (VTE). Our objective was to evaluate the association of VTE in obese patients with lymphedema and lipedema. METHODS: The National Inpatient Sample (NIS) was searched from 2016 to 2020 to identify hospital admissions of obese female patients with lymphedema and lipedema. Patients were analyzed in the context of presence or absence of VTE while adjusting for complex cluster sampling techniques. Predictors of VTE were accessed by multivariable regression. RESULTS: Lymphedema was identified in 189,985 patients and lipedema in 50,645 patients. VTE was observed in 3.12% (n = 374,210) of patients with obesity. In patients with obesity, VTE was more common in patients with lymphedema than without (2.6% vs 1.6%; p < 0.01). Similarly, VTE was more common in patients with lipedema than without (0.6% vs 0.4%; p < 0.01). After multivariable logistic regression, VTE events in obese patients with lymphedema were higher versus without (OR 1.6; CI 1.08-2.43; p = 0.02). Similarly, VTE events were more common in obese patients with lipedema versus obese patients without lipedema (OR 1.20; CI 1.03-1.41; p = 0.02). CONCLUSIONS: In this hypothesis-generating study, lymphedema and lipedema show a positive association with VTE after adjusting for baseline patient characteristics such as obesity, which is a known independent risk factor for VTE. Mechanisms whereby lymphedema and lipedema are associated with VTE should be investigated.

We analyzed the medical condition of 360 women affected by lipedema of the lower limbs in stages 1, 2, and 3. The data were assessed for the whole population and compared between different clinical stages, distinguishing between obese and non-obese patients. The most frequent clinical signs were pain when pinching the skin, subcutaneous nodules, and patellar fat pads. The most frequently painful site of the lower limbs was the medial lower third of the thigh. The pain score obtained on lower limb points increased progressively with the clinical stage. In all points evaluated, the thickness of the subcutaneous tissue increased with the clinical stage. Analyzing the data on the lower medial third of the leg and considering only patients with type 3 lipedema, the difference between stages was statistically significant after correction for age and BMI. We found higher levels of C-reactive protein at more severe clinical stages, and the difference was significant after correction for age and BMI between the stages. Overall, the prevalence of alterations of glucose metabolism was 34%, with a progressive increase in prevalence with the clinical stage. The most frequent comorbidities were vitamin D insufficiency, chronic venous disease, allergies, dyslipidemia, headache, and depression of mood. Interestingly, in comparison with the general population, we found higher prevalence of chronic autoimmune thyroiditis and polycystic ovary syndrome. Finally, the clinical stage and the involvement of the upper limbs or obesity suggest a worse clinical, anthropometric, and endocrine–metabolic profile.

Dr. Allen and Dr. Hines pioneered and first described lipedema in the 1940s, a common subcutaneous adipose tissue disorder characterized by enlargement of both lower extremities. Lipedema is not edema; it is a genetically determined disturbance in adipose tissue mass and adipose tissue distribution. In 1951 a second seminal paper provided more description of lipedema. Fat distribution involves the lower extremities, upper arms, hips, buttocks, thighs, sparing trunks, and feet. Lower extremities are characterized by pain, easy bruisability, firm subcutaneous nodules of adipose tissue, and resistance of fat to traditional diet and exercise.

Background/Aim: The aim of this study was to determine the frequency of fibromyalgia syndrome (FMS) in patients with lipedema and to evaluate the effects of FMS on anxiety, depression, and quality of life (QoL) in this patient group. Methods: Patients with lipedema were invited to participate in a Survey-Monkey questionnaire (according to inclusion and exclusion criteria) that was announced on the facebook page of the lipedema patient community. The demographic and clinical properties, including age, body mass index (BMI), education, marital status, and types and stage of lipedema, were collected. Presence of fibromyalgia was assessed by the questions based on American College of Rheumatology 2016 FMS diagnostic criteria. The Hospital Anxiety and Depression Scale and Short Form-12 (SF-12) were used to assess the anxiety and depression, and QoL respectively. The demographic and clinical characteristics, as well as anxiety/depression level and QoL of lipedema patients were evaluated in regard to the presence (Group 1) and absence (Group 2) of FMS. Results: A total of 354 participants with a mean age of 43.18 ± 9.53 years and BMI of 30.61 ± 6.86 were included. The majority of them were married and had university education. Most of the patients had types 1, 2 and commonly stages 1 and 2 lipedema. One hundred twenty-four patients (35%) satisfied FMS criteria. The demographic characteristics except pain intensity were similar between the groups. The mean anxiety and depression scores of Group 1 were significantly higher compared with Group 2 (13.11 ± 4.2 vs. 9.87 ± 4.65, 10.23 ± 3.79 vs. 8.26 ± 4.15, respectively, p < 0.001). The mental and physical subgroup scores of SF-12 (35.37 ± 8.59 vs. 42.55 ± 10.15, 35.27 ± 8.49 vs. 40.38 ± 11.36, respectively) were significantly lower in Group 1 than in Group 2 (p < 0.001). Conclusion: More than every 3 lipedema patient may have FMS. This comorbidity may increase depression and anxiety, and impair QoL. Therefore, FMS must be kept in mind especially in the assessment of painful lipedema patients to decrease anxiety/depression and enhance the QoL of them.