Bioelectrical Impedance Utilization and Dietary Intake Relation in the Breast Cancer Related Lymphedema

Study Overview
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Brief Summary
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The purpose of this study was to investigate the clinical role of bioelectrical impedance analysis (BIA) and the relationship between the occurrence of breast cancer related lymphedema (BCRL) and dietary factors in breast cancer survivors who underwent surgical treatments.

Detailed Description
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Breast cancer survivors are at risk of complications of breast cancer-related lymphedema (BCRL) after surgical treatments, which may negatively effect on the quality of life of breast cancer survivors. Lymphedema has been clinically diagnosed by determining that a limb is in fact swollen, and has arbitrarily been diagnosed in other etiologies. Limb circumference differences of 2 cm, a 200 mL or more in limb, or a 5% volume change are some of the objective ways that clinicians use to diagnose lymphedema. Although the arm circumference measurement method is a simple and frequently used clinical method, there is a disadvantage that the standardized reference point does not exist, the extracellular space can not be measured, and the sensitivity is also low. The lack of evidence-based diagnostic criteria to define lymphedema has presented tremendous difficulty in diagnosing lymphedema. It is important to define such criteria for early detection and treatment of lymphedema. Because of these limitations, many researchers are studying various methods for diagnosing lymphadenopathy and methods of bioelectrical impedance have been studied, recently. Bioelectrical Impedance predicts body composition using the difference of electric conductivity by flowing a minute current to human body.This principle is used to diagnose the occurrence of lymphatic edema. In several studies, the single-frequency bioimpedance analysis (SFBIA) of the two arms obtained from bioelectrical impedance measurements was expressed as the ratio of the values of the operated and non-operated arms. However, it has not yet been clarified as a diagnostic method. Therefore, more studies are needed to establish a diagnosis method and a prediction method of lymphatic edema. Various risk factors of lymphedema such as axillary lymph node dissection (ALND) and obesity have been studied for early prevention. However, there are no studies on the relationship between breast cancer related lymphedema, and dietary factors in breast cancer patients. The purpose of this study was to compare the diagnosis of lymphedema with the measurement of the arm circumference and the diagnosis of lymphedema through bioelectrical impedance values in order to clarify the clinical role of bioelectrical impedance method as a diagnostic method of lymphedema. To investigate the relationship between dietary factors, which are considered to be related to the occurrence of lymphedema, the investigators examined the frequency of dietary intake and analyzed the relationship between dietary factors and lymphatic edema.

Official Title
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Relationship Between Bioelectrical Impedance Utilization and Dietary Intake in the Analysis of Risk of Lymphedema in Breast Cancer Survivors: A Prospective Cross Sectional Study

Conditions
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Breast Cancer Lymphedemas

Intervention / Treatment
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* Diagnostic Test: Inbody 720


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Breast cancer patients 20 years of age or older who survive after surgery and follow-up Exclusion Criteria: Patients with bilateral breast cancer Male breast cancer patient Patients with a history of previous axillary surgery or radiation Recurrent breast cancer subjects Those who can not read or understand the written consent of an illiterate or foreigner Subjects who did not voluntarily decide to participate in this study or who did not sign a consent form The subjects who were judged inappropriate by the researcher to participate in this study

Ages Eligible for Study
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Minimum Age: 20 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| presence of BCRL<br>presence of breast cancer related lymphedema after surgical treatment using Inbody 720 and arm circumference measurement | Diagnostic Test: Inbody 720<br>* We investigated the diagnostic accuracy of breast cancer related lymphedema diagnosed by bioimpedance analysis (Inbody 720) and arm circumference measurement..<br>* Other names: bioelectrical impedance analysis;|
| absence of BCRL<br>absence of breast cancer related lymphedema after surgical treatment using Inbody 720 and arm circumference measurement | Diagnostic Test: Inbody 720<br>* We investigated the diagnostic accuracy of breast cancer related lymphedema diagnosed by bioimpedance analysis (Inbody 720) and arm circumference measurement..<br>* Other names: bioelectrical impedance analysis;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Brest cancer related lymphedema | Assessed by measuring the circumference at 15.0 centimeter below the acromion process in both arm and circumference difference of greater than or equal to 2.0 centimeter. | At least six months after the surgical treatment | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| BIA | bioelectrical impedance values | At least six months after the surgical treatment | 
| SFBIA ratio | single frequency bioelectrical impedance analysis | At least six months after the surgical treatment | 
| BMI | body mass index; weight in kilograms(kg) and height in meter(m) will be combined to report BMI in kg/m^2 | At least six months after the surgical treatment | 
| WHR | waist-hip ratio; waist circumference in centimeter(cm) and hip circumference in centimeter(cm) will be combined to report WHR in cm/cm | At least six months after the surgical treatment | 
| Percent body fat | body fat mass in kilograms(kg) and weight in kilograms(kg) will be combined to report Percent body fat in kg/kg*100 (%) | At least six months after the surgical treatment | 
| Nutrient intake analysis | nutrient intake was analyzed by a nutrition analysis program (Can-Pro 5.0) through food frequency questionnaire | At least six months after the surgical treatment | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Breast cancer related lymphedemas, Sentinel Lymph Node Biopsy, Axillary Lymph Node Dissection, Bioelectrical Impedance Analysis, Dietary Fat