Using noninvasive imaging to assess manual lymphatic drainage on lymphatic/venous responses in a spaceflight analog.

IF 4.4 1区 物理与天体物理 Q1 MULTIDISCIPLINARY SCIENCES npj Microgravity Pub Date : 2024-10-03 DOI:10.1038/s41526-024-00429-w
Heather Barnhart, Frank Aviles, Johanna Pannunzio, Nathan Sirkis, Chantel Hubbard, Patrick Hardigan, Sabrina Ginsburg, Harvey Mayrovitz, Kristen A Eckert, M Mark Melin
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Abstract

This retrospective case series (clinicaltrials.gov NCT06405282) used noninvasive imaging devices (NIID) to assess the effect of manual lymphatic drainage (MLD) on dermal/venous fluid distribution, perfusion, and temperature alterations of the head, neck, upper torso, and legs while in the 6-degree head-down tilt validated spaceflight analog. A lymphatic fluid scanner measured tissue dielectric constant levels. Near-infrared spectroscopy assessed perfusion, by measuring tissue oxygenation saturation. Long-wave infrared thermography measured tissue temperature gradients. Fifteen healthy, university students participated. NIID assessments were taken 1 minute after assuming the HDT position and then every 30 minutes, with MLD administered from 180 to 195 minutes. Subjects returned to the sitting position and were assessed at post-225 min NIID demonstrated significant changes from baseline (p < 0.01), although these changes at areas of interest varied. MLD had a reverse effect on all variables. NIID assessment supported the potential use of MLD to mitigate fluid shifts during a spaceflight analog.

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利用无创成像技术评估人工淋巴引流对太空飞行模拟人淋巴/静脉反应的影响。
这项回顾性病例系列研究(clinicaltrials.gov NCT06405282)使用无创成像设备(NIID)评估了手动淋巴引流术(MLD)对头颈部、躯干上部和腿部真皮/静脉液体分布、灌注和温度变化的影响。淋巴液扫描仪测量了组织介电常数水平。近红外光谱仪通过测量组织氧饱和度来评估灌注情况。长波红外热成像测量组织温度梯度。15 名健康的大学生参加了此次活动。在采取 HDT 体位后 1 分钟进行 NIID 评估,然后每隔 30 分钟进行一次,在 180 至 195 分钟期间进行 MLD 评估。受试者回到坐姿,在 225 分钟后进行 NIID 评估,结果显示与基线相比有显著变化(p
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来源期刊
npj Microgravity
npj Microgravity Physics and Astronomy-Physics and Astronomy (miscellaneous)
CiteScore
7.30
自引率
7.80%
发文量
50
审稿时长
9 weeks
期刊介绍: A new open access, online-only, multidisciplinary research journal, npj Microgravity is dedicated to publishing the most important scientific advances in the life sciences, physical sciences, and engineering fields that are facilitated by spaceflight and analogue platforms.
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