Wearable, wireless, multi-sensor device for monitoring tissue circulation after free-tissue transplantation: a multicentre clinical trial

Author:

Tomioka Yoko,Sekino Masaki,Gu Jian,Kurita Masakazu,Yamashita Shuji,Miyamoto Shimpei,Iida Takuya,Kanayama Koji,Yoshimura Kotaro,Nakagawa Masahiro,Akazawa Satoshi,Kagaya Yu,Tanaka Kentaro,Sunaga Yuki,Ueda Keiko,Kawahara Takuya,Tahara Yukiko,Okazaki Mutsumi

Abstract

AbstractWearable sensors have seen remarkable recent technological developments, and their role in healthcare is expected to expand. Specifically, monitoring tissue circulation in patients who have undergone reconstructive surgery is critical because blood flow deficiencies must be rescued within hours or the transplant will fail due to thrombosis/haematoma within the artery or vein. We design a wearable, wireless, continuous, multipoint sensor to monitor tissue circulation. The system measures pulse waves, skin colour, and tissue temperature to reproduce physician assessment. Data are analysed in real time for patient risk using an algorithm. This multicentre clinical trial involved 73 patients who underwent transplant surgery and had their tissue circulation monitored until postoperative day 7. Herein, we show that the overall agreement rate between physician and sensor findings is 99.2%. In addition, the patient questionnaire results indicate that the device is easy to wear. The sensor demonstrates non-invasive, real-time, continuous, multi-point, wireless, and reliable monitoring for postoperative care. This wearable system can improve the success rate of reconstructive surgeries.

Funder

Japan Agency for Medical Research and Development, Japan

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

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