Background: Lymphedema (LE) is a chronic condition of swelling due to lymphatic impairment and is characterized by edema and fibro-adipose tissue deposition. LE may be caused by an anomalous development of the lymphatic system, known as primary LE, or may develop secondary to traumatic, infectious, or other external events. Knowledge is increasing about the plural and bidirectional relationship between LE and obesity. The rate of obesity is increasing worldwide, and bariatric surgery offers the most effective and durable treatment, as this surgery exhibits positive effects on many obesity-related diseases. We explored whether bariatric surgery could improve leg volumes in morbidly obese LE patients. Methods and Results: Between 2013 and 2019, 829 patients were hospitalized in our Center of Expertise for Lymphovascular Medicine for intensive treatment of their LE. Nine patients with end-stage primary, secondary, or obesity-induced LE underwent a bariatric procedure related to their morbid obesity. Data concerning age, gender, medical diagnosis, LE stage, type of bariatric treatment, body weight, body mass index (BMI), and limb volumes were retrospectively collected from the patient files. At the individual patient level, body weight, BMI, leg volumes, and their percent reduction between presurgery and postsurgery were calculated. At the group level, paired sample t-tests were conducted to compare the mean body weight, BMI, and volumes of both legs between postsurgery and presurgery. The data demonstrate a significant decrease in body weight, BMI, and leg volumes in morbidly obese end-stage primary, secondary, and obesity-induced LE patients following bariatric surgery. Conclusions: Our multiple case study indicates that bariatric surgery provides a good indication for concomitant treatment of morbid obesity and LE.
Background Physical activity after bariatric surgery is associated with sustained weight loss and improved quality of life. Some bariatric patients engage insufficiently in physical activity. The aim of this study was to examine whether and to what extent both physical activity and exercise cognitions have changed at one and two years post-surgery, and whether exercise cognitions predict physical activity. Methods Forty-two bariatric patients (38 women, 4 men; mean age 38 ± 8 years, mean body mass index prior to surgery 47 ± 6 kg/m²), filled out self-report instruments to examine physical activity and exercise cognitions pre- and post surgery. Results Moderate to large healthy changes in physical activity and exercise cognitions were observed after surgery. Perceiving less exercise benefits and having less confidence in exercising before surgery predicted less physical activity two years after surgery. High fear of injury one year after surgery predicted less physical activity two years after surgery. Conclusion After bariatric surgery, favorable changes in physical activity and exercise cognitions are observed. Our results suggest that targeting exercise cognitions before and after surgery might be relevant to improve physical activity.
MULTIFILE
BACKGROUND: Visceral obesity is associated with the metabolic syndrome. The metabolic risk differs per ethnicity, but reference values for visceral obesity for body composition analyses using Computed Tomography (CT) scans in the Caucasian population are lacking. Therefore, the aim of this study was to define gender specific reference values for visceral obesity in a Caucasian cohort based upon the association between the amount of visceral adipose tissue (VAT) and markers of increased metabolic risk.METHODS: Visceral Adipose Tissue Area Index (VATI cm 2/m 2) at the level of vertebra L3 was analyzed using CT scans of 416 healthy living kidney donor candidates. The use of antihypertensive drugs and/or statins was used as an indicator for increased metabolic risk. Gender specific cut-off values for VATI with a sensitivity ≥80% were calculated using receiver operating characteristic (ROC) curves. RESULTS: In both men and women who used antihypertensive drugs, statins or both, VATI was higher than in those who did not use these drugs (p ≤ 0.013). In males and females respectively, a value of VATI of ≥38.7 cm 2/m 2 and ≥24.9 cm 2/m 2 was associated with increased metabolic risk with a sensitivity of 80%. ROC analysis showed that VATI was a better predictor of increased metabolic risk than BMI (area under ROC curve (AUC) = 0.702 vs AUC = 0.556 in males and AUC = 0.757 vs AUC = 0.630 in females). CONCLUSION: Gender and ethnicity specific cut-off values for visceral obesity are important in body composition research, although further validation is needed. This study also showed that quantification of VATI is a better predictor for metabolic risk than BMI.
