Åsa Åkesson

Risk factors for lymphedema and method of assessment in endometrial cancer: a prospective longitudinal multicenter study

The aim of the study was to determine risk factors for lymphedema of the lower limbs, assessed by four methods, 1 year after surgery for endometrial cancer. A prospective longitudinal multicenter study was conducted in 14 Swedish hospitals. 235 women with endometrial cancer were included; 116 underwent surgery including lymphadenectomy, and 119 had surgery without lymphadenectomy. Lymphedema was assessed preoperatively and 1 year postoperatively objectively by systematic circumferential measurements of the legs, enabling volume estimation addressed as (1) crude volume and (2) body mass index-standardized volume, or (3) clinical grading, and (4) subjectively by patient-reported perception of leg swelling. In volume estimation, lymphedema was defined as a volume increase ≥10%. Risk factors were analyzed using forward stepwise logistic regression models and presented as adjusted odds ratio (aOR) and 95% confidence interval (95% CI). Risk factors varied substantially, depending on the method of determining lymphedema. Lymphadenectomy was a risk factor for lymphedema when assessed by body mass index-standardized volume (aOR 14.42, 95% CI 3.49 to 59.62), clinical grading (aOR 2.11, 95% CI 1.04 to 4.29), and patient-perceived swelling (aOR 2.51, 95% CI 1.33 to 4.73), but not when evaluated by crude volume. Adjuvant radiotherapy was only a risk factor for lymphedema when assessed by body mass index-standardized volume (aOR 15.02, 95% CI 2.34 to 96.57). Aging was a risk factor for lymphedema when assessed by body mass index-standardized volume (aOR 1.07, 95% CI 1.00 to 1.15) and patient-perceived swelling (aOR 1.06, 95% CI 1.02 to 1.10), but not when assessed by crude volume or clinical grading. Increase in body mass index was a risk factor for lymphedema when estimated by crude volume (aOR 1.92, 95% CI 1.36 to 2.71) and patient-perceived swelling (aOR 1.36, 95% CI 1.11 to 1.66), but not by body mass index-standardized volume or clinical grading. The extent of lymphadenectomy was strongly predictive for the development of lymphedema when assessed by body mass index-standardized volume and patient-perceived swelling, but not by crude volume or clinical grading. Apparent risk factors for lymphedema differed considerably depending on the method used to determine lymphedema. This highlights the need for a 'gold standard' method when addressing lymphedema for determining risk factors.

Impact of lymphadenectomy and lymphoedema on health‐related quality of life 1 year after surgery for endometrial cancer. A prospective longitudinal multicentre study

ObjectiveTo assess the impact of lymphadenectomy and lymphoedema of the lower limbs (LLL) on health‐related quality of life (HRQoL) 1 year after surgery for endometrial cancer (EC).DesignProspective longitudinal cohort multicentre study.SettingDepartments of obstetrics and gynaecology at four university hospitals, six central hospitals and four county hospitals in Sweden.PopulationTwo‐hundred‐and‐thirty‐five women with early stage EC were included; 116 with high‐risk EC underwent surgery including lymphadenectomy (+LA), and 119 with low‐risk EC had surgery without lymphadenectomy (−LA).MethodsThe generic SF‐36 and EQ‐5D‐3L and the lymphoedema‐specific LYMQOL questionnaire were used to assess HRQoL. LLL was assessed by systematic circumferential measurements of the legs enabling volume estimation, clinical evaluation and patient‐reported perception of leg swelling. All assessments were carried out on four occasions; preoperatively, and 4–6 weeks, 6 months and 1 year postoperatively.Main outcome measureHRQoL scores.ResultsNo significant differences were seen in HRQoL between the +LA and –LA groups 1 year postoperatively. Irrespective of method of determining LLL, women with LLL were significantly more affected in the LYMQOL domains Function, Appearance/body image and Physical symptoms, but not in the domain Emotion/mood, than women without LLL. No such differences were seen in the generic HRQoL or in the LYMQOL global score between the groups with and without LLL.ConclusionsLymphadenectomy did not seem to affect generic HRQoL adversely. Irrespective of the method of measuring, LLL affected the lymphoedema‐specific HRQoL negatively, mainly in physical domains, but had no impact on the generic HRQoL.Tweetable abstractLymphoedema has impact on lymphoedema‐specific, but not on generic, HRQoL, 1 year after surgery for EC.

Risk factors for lymph ascites after surgery for endometrial cancer and impact on lymphedema of the legs. A prospective longitudinal Swedish multicenter study

AbstractIntroductionThe primary aim was to determine the occurrence of lymph ascites 4–6 weeks after surgery for endometrial cancer. Secondary aims were to assess risk factors for lymph ascites and the association with lymphedema of the legs.Material and MethodsThis was a post hoc analysis of an observational prospective multicenter study, performed in 14 Swedish hospitals that included 235 women undergoing surgery for early‐stage endometrial cancer between June 2014 and January 2018; 116 underwent surgery including pelvic and para‐aortic lymphadenectomy and 119 had surgery without lymphadenectomy. Lymph ascites (free intraabdominal fluid or encapsulated pelvic or para‐aortic fluid) was assessed by vaginal ultrasound 4–6 weeks postoperatively. Lymphedema was assessed using circumferential measurements of the legs preoperatively and 1 year postoperatively, enabling estimation of leg volume. A BMI‐standardized leg volume increase ≥10% was classified as lymphedema. Evaluation of risk factors was performed using multiple logistic regression.ResultsLymph ascites 4‐6‐weeks postoperatively occurred in 28.5% (67/235) of the women. The estimated volume of the lymph ascites in these women was mean 28 mL (standard deviation 48 mL) and median 14 mL (interquartile range 2–36 mL). Lymphadenectomy was a risk factor for lymph ascites (aOR 9.97; 95% CI 4.53–21.97) whereas the use of minimally invasive surgery (aOR 0.50; 95% CI 0.25–0.99) reduced the risk. Twenty‐two of 231 women (9.5%) developed lymphedema of the legs 1 year after surgery. The presence of lymph ascites was predictive of lymphedema (aOR 3.90; 95% CI 1.52–9.96).ConclusionsLymph ascites was common 4–6 weeks after surgery but in a low and clinically insignificant volume. Lymphadenectomy was a strong risk factor for lymph ascites and the use of minimally invasive surgery seemed to reduce the risk. Detection of lymph ascites at early postoperative follow‐up may be a means of selecting patients at high risk of developing lymphedema after treatment with endometrial cancer for preventive measures against lymphedema progression.