Fluid Shifts in Space Flight Analogues and Terrestrial Wound Clinic Applications Editorial Summary In space, astronauts experience fluid shifts from their legs to their upper body, causing symptoms like head fullness and vision changes known as Spaceflight Associated Neuroocular Syndrome (SANS). NASA researchers are studying SANS using analog tests that simulate space conditions. They use noninvasive imaging techniques to monitor fluid shifts and develop countermeasures. These techniques could also be useful in improving wound care by diagnosing lymphatic dysfunction and edema. NASA's research in nutrition and other areas can benefit healthcare. By adopting advanced technologies, similar to the James Webb telescope, wound clinics can achieve better outcomes.
Introduction
S Dr M. Mark Melin
Dr Heather Barnhart
Medical Director of the M Health Wound Healing Institute
Professor, Dept of Physical Therapy, Nova Southeastern University
Adjunct Associate Professor, University of Minnesota Surgical Department Mineapolis MN, United States
Fort Lauderdale FL, United States
pace travel poses unique challenges for astronauts, including significant fluid shifts from the legs to the upper body, leading to symptoms such as head ‘fullness’ and altered vision. This condition, known as Spaceflight Associated Neuroocular Syndrome (SANS), is a priority area of research for NASA as they plan future missions to the moon and Mars. Earthbased studies use space flight analogue testing to simulate these fluid shifts, but real-time imaging of fluid shifts in a head-down position has been lacking. Recent advancements in noninvasive imaging techniques have shown promise in monitoring fluid shifts and understanding SANS. Additionally, these imaging technologies hold potential for improving diagnostics and treatments in wound care, particularly for conditions like venous leg ulcerations and lymphedema. By applying lessons learned from space research, we can explore innovative approaches and enhance patient outcomes in wound care.
Fluid Shifts in Low Earth Orbit (LEO) Entering Low Earth Orbit (LEO) induces a significant fluid shift in astronauts, where approximately 2 litres of fluid move from the legs to the upper torso, neck, and head. This fluid shift occurs within the first 24 hours in LEO and is followed by human physiology adaptation over the following 7 days. However, the resolution of fluid shifts varies, and complete improvement is not always achieved.
Mr Frank Aviles
Ms Sabrina Ginsburg
Wound Care Clinical Coordinator, Natchitoches Regional Medical Center
University of Miami Miller School of Medicine HPSP Student
Natchitoches LA, United States
Lake Worth, Florida, United States
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Wound Masterclass - Vol 2 - December 2023
Symptoms of Spaceflight Associated Neuroocular Syndrome (SANS) Astronauts in space experience various symptoms associated with Spaceflight Associated Neuroocular Syndrome (SANS). These symptoms include a sense of ‘fullness’ in the head, stuffy nose, and altered taste sensation. Furthermore, approximately 40 - 70% of the crew develops varying symptoms of SANS. The syndrome leads to ocular, retinal, and vision changes, retinal nerve thickening, and alterations in fluid distribution within the
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