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Clinical Trial
. 2016 Jun;76(6):697-9.
doi: 10.1097/SAP.0000000000000259.

Arm Volumetry Versus Upper Extremity Lymphedema Index: Validity of Upper Extremity Lymphedema Index for Body-Type Corrected Arm Volume Evaluation

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Clinical Trial

Arm Volumetry Versus Upper Extremity Lymphedema Index: Validity of Upper Extremity Lymphedema Index for Body-Type Corrected Arm Volume Evaluation

Nana Yamamoto et al. Ann Plast Surg. .

Abstract

Background: Volumetry, measurement of extremity volume, is a commonly used method for upper extremity lymphedema (UEL) evaluation. However, comparison between different patients with different physiques is difficult with volumetry, because body-type difference greatly affects arm volume.

Methods: Seventy arms of 35 participants who had no history of arm edema or breast cancer were evaluated. Arm volume was calculated using a summed truncated cone model, and UEL index was calculated using circumferences and body mass index (BMI). Examinees' BMI was classified into 3 groups, namely, low BMI (BMI, <20 kg/m), middle BMI (BMI, 20-25 kg/m), and high BMI (BMI, >25 kg/m). Arm volume and UEL index were compared with corresponding BMI groups.

Results: Mean (SD) arm volume was 1090.9 (205.5) mL, and UEL index 96.9 (5.6). There were significant differences in arm volume between BMI groups [low BMI vs middle BMI vs high BMI, 945.2 (107.4) vs 1045.2 (87.5) vs 1443.1 (244.4) mL, P < 0.001]. There was no significant difference in UEL index between BMI groups [low BMI vs middle BMI vs high BMI, 97.2 (4.2) vs 96.6 (4.6) vs 96.7 (9.9), P > 0.5].

Conclusions: Arm volume significantly increased with increase of BMI, whereas UEL index stayed constant regardless of BMI. Upper extremity lymphedema index would allow better body-type corrected arm volume evaluation compared with arm volumetry.

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