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

作者：Yamamoto Nana; Yamamoto Takumi^*; Hayashi Nobuko; Hayashi Akitatsu; Iida Takuya; Koshima Isao

来源：Annals of Plastic Surgery, 2016, 76(6): 697-699.

DOI：10.1097/SAP.0000000000000259

• arm
• lymphedema
• breast
• cancer
• circumference
• index
• volume
• upper
• extremity

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(2)), middle BMI (BMI, 20-25 kg/m(2)), and high BMI (BMI, >25 kg/m(2)). 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.

• 出版日期2016-6