Tissue Dielectric Constant and Water Displacement Method Can Detect Changes of Mild Breast Cancer-Related Arm Lymphedema

2021 ◽  
Author(s):  
Katarina Karlsson ◽  
Karin Johansson ◽  
Lena Nilsson-Wikmar ◽  
Christina Brogårdh
Keyword(s):  
Breast Cancer ◽  
Dielectric Constant ◽  
Displacement Method ◽  
Water Displacement ◽  
Arm Lymphedema

A Simple and Innovative Device to Measure Arm Volume at Home for Patients With Lymphedema After Breast Cancer

2006 ◽  
Vol 24 (34) ◽  
pp. 5434-5440 ◽  
Author(s):  
Jean Lette
Keyword(s):  
Breast Cancer ◽  
Standard Deviation ◽  
Standard Model ◽  
Strongly Correlated ◽  
Displacement Method ◽  
Water Displacement ◽  
Average Standard Deviation ◽  
Accuracy And Precision ◽  
At Home

PurposeWe designed an arm volumeter specifically for home use based on the water displacement method. The objective of this study was to determine its accuracy and precision, and compare it with a standard volumeter used in lymphedema clinics worldwide.Patients and MethodsUsing a standard model hospital volumeter and our own device, we took three consecutive measurements of 11 specially cast cylinders, which had known volumes ranging from 10mL to 4 L, and measurements of both arms of 15 volunteers.ResultsMeasurements with both volumeters were highly accurate (R2= 0.9999) when compared with the known volumes of the cast cylinders, and were strongly correlated (R2= 0.9974) when each arm volume was compared between volumeters. Measurements with our volumeter were more precise both with the cylinders (average standard deviation [SD], 3.2 v 8 mL; P = .0553) and with the arms (average SD, 11.1 v 19 mL; P = .0034). Whereas the standard volumeter is expensive, fragile (acrylic), and prone to leaks, our volumeter is inexpensive, virtually indestructible, leak proof, and suitable for home use.ConclusionArm volumes can be measured quickly and accurately at home using a simple, inexpensive, and robust device based on water displacement. Readily accessible arm volumetry at home may have widespread influence on the management of lymphedema after breast cancer.

scholarly journals Reliability and Validity of Arm Volume Measurements for Assessment of Lymphedema

2006 ◽  
Vol 86 (2) ◽  
pp. 205-214 ◽  
Author(s):  
Richard Taylor ◽  
Upali W Jayasinghe ◽  
Louise Koelmeyer ◽  
Owen Ung ◽  
John Boyages
Keyword(s):  
Breast Cancer ◽  
High Reliability ◽  
Reliability And Validity ◽  
Cancer Surgery ◽  
Breast Cancer Surgery ◽  
Water Displacement ◽  
Anatomic Landmarks ◽  
Single Measure ◽  
Arm Lymphedema ◽  
Volume Measurements

Background and Purpose. Arm lymphedema following breast cancer surgery is a continuing problem. In this study, we assessed the reliability and validity of circumferential measurements and water displacement for measuring upper-limb volume. Subjects. Participants included subjects who had had breast cancer surgery, including axillary dissection—19 with and 22 without a diagnosis of arm lymphedema—and 25 control subjects. Methods. Two raters measured each subject by using circumferential tape measurements at specified distances from the fingertips and in relation to anatomic landmarks and by using water displacement. Interrater reliability was calculated by analysis of variance and multilevel modeling. Volumes from circumferential measurements were compared with those from water displacement by use of means and correlation coefficients, respectively. The standard error of measurement, minimum detectable change (MDC), and limits of agreement (LOA) for volumes also were calculated. Results. Arm volumes obtained with these methods had high reliability. Compared with volumes from water displacement, volumes from circumferential measurements had high validity, although these volumes were slightly larger. Expected differences between subjects with and without clinical lymphedema following breast cancer were found. The MDC of volumes or the error associated with a single measure for data based on anatomic landmarks was lower than that based on distance from fingertips. The mean LOA with water displacement were lower for data based on anatomic landmarks than for data based on distance from fingertips. Discussion and Conclusion. Volumes calculated from anatomic landmarks are reliable, valid, and more accurate than those obtained from circumferential measurements based on distance from fingertips. [Taylor R, Jayasinghe UW, Koelmeyer L, et al. Reliability and validity of arm volume measurements for assessment of lymphedema. Phys Ther. 2006;86:205–214.]

scholarly journals Self-reported symptoms of arm lymphedema and health-related quality of life among female breast cancer survivors

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kayo Togawa ◽  
Huiyan Ma ◽  
Ashley Wilder Smith ◽  
Marian L. Neuhouser ◽  
Stephanie M. George ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Quality Of Life ◽  
Physical Health ◽  
Analysis Of Covariance ◽  
Health Related Quality ◽  
Burning Pain ◽  
Related Quality ◽  
Health Related ◽  
Arm Lymphedema

AbstractWe examined cross-sectional associations between arm lymphedema symptoms and health-related quality of life (HRQoL) in the Health, Eating, Activity and Lifestyle (HEAL) Study. 499 women diagnosed with localized or regional breast cancer at ages 35–64 years completed a survey, on average 40 months after diagnosis, querying presence of lymphedema, nine lymphedema-related symptoms, e.g., tension, burning pain, mobility loss, and warmth/redness, and HRQoL. Analysis of covariance models were used to assess HRQoL scores in relation to presence of lymphedema and lymphedema-related symptoms. Lymphedema was self-reported by 137 women, of whom 98 were experiencing lymphedema at the time of the assessment. The most common symptoms were heaviness (52%), numbness (47%), and tightness (45%). Perceived physical health was worse for women reporting past or current lymphedema than those reporting no lymphedema (P-value < 0.0001). No difference was observed for perceived mental health (P-value = 0.31). Perceived physical health, stress, and lymphedema-specific HRQoL scores worsened as number of symptoms increased (P-values ≤ 0.01). Women reporting tension in the arm had lower physical health (P-value = 0.01), and those experiencing burning pain, tension, heaviness, or warmth/redness in the arm had lower lymphedema-specific HRQoL (P-values < 0.05). Treatment targeting specific lymphedema-related symptoms in addition to size/volume reduction may improve some aspects of HRQoL among affected women.

Weight loss does not decrease risk of breast cancer–related arm lymphedema

Cancer ◽  
2021 ◽  
Author(s):  
Sacha A. Roberts ◽  
Tessa C. Gillespie ◽  
Amy M. Shui ◽  
Cheryl L. Brunelle ◽  
Kayla M. Daniell ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Weight Loss ◽  
Arm Lymphedema

scholarly journals Biogas Production from Poultry Wastewater using Anaerobic Digester

2019 ◽  
Vol 9 (2S2) ◽  
pp. 110-114
Keyword(s):  
Substrate Concentration ◽  
Biogas Production ◽  
Morphological Structure ◽  
Sem Analysis ◽  
Anaerobic Digester ◽  
Poultry Waste ◽  
Displacement Method ◽  
Water Displacement ◽  
Kinetics Studies ◽  
Poultry Wastewater

Experimental work was carried out for the production of Biogas from poultry waste water. The Poultry waste was collected from farm near Nagercoil at Kanyakumari District. Batch anaerobic digester was designed for 20L capacity. The experiment was carried out for 36 days to monitor the performance. Various parameters like pH, TS, COD have checked for every 24hours. The Production of biogas was measured by water displacement method. The methane content was analyzed by gas chromatography test. Based on the experimental data, kinetics studies have done for various models like Line Weaver-Burk method, Eadie-Hofstee method, Hanes-Woolf method. The Eadie-Hofstee Method has provided better prediction than other method. These results thus indicate that, Eadie-Hofstee Method is best to identify the growth rate, substrate concentration and Limiting Substrate Concentration of the system. The sludge of the poultry wastewater and digester were characterized by SEM analysis. The imaging was done to determine the morphological structure of the sludge and to view the bacterial growth on the surface of the sludge.

scholarly journals Liposuction of Breast Cancer-Related Arm Lymphedema Reduces Fat and Muscle Hypertrophy

2021 ◽  
Author(s):  
Tobias Karlsson ◽  
Magnus Karlsson ◽  
Karin Ohlin ◽  
Gaby Olsson ◽  
Håkan Brorson
Keyword(s):  
Breast Cancer ◽  
Muscle Hypertrophy ◽  
Arm Lymphedema
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