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Wearable wireless real-time cerebral oximeter for measuring regional cerebral oxygen saturation

Science China(Information Sciences) 2021年第1期64卷 123-132页

作者： Juanning SI Xin ZHANG Meng LI Jian YU Zhiyong ZHANG Qing HE Shaohua CHEN Lianqing ZHU Tianzi JIANG School of Instrumentation Science and Opto-electronics Engineering Beijing Information Science and Technology University Beijing Key Laboratory for Optoelectronic Measurement Technology Beijing Information Science and Technology University Brainnetome Center Institute of AutomationChinese Academy of Sciences National Laboratory of Pattern Recognition Institute of AutomationChinese Academy of Sciences Research and Development Department Casibrain Technology Limited Company Key Laboratory for NeuroInformation of the Ministry of Education School of Life Science and TechnologyUniversity of Electronic Science and Technology of China Chinese Academy of Sciences Center for Excellence in Brain Science Institute of AutomationChinese Academy of Sciences Queensland Brain Institute University of Queensland

Monitoring regional cerebral oxygen saturation throughout the perioperative clinical process is important for successful patient outcomes. Cerebral oximeters based on near-infrared spectroscopy(NIRS)have already been used for monitoring brain oxygenation and hemodynamics to avoid intraoperative ischemic stroke and reduce postoperative cognitive dysfunction. The current devices are all designed to be used as a bedside monitor, limiting their use to situations that center around a hospital bed. There is a current lack of wearable, miniaturized, wireless equipment that can extend brain oxygenation monitoring to motion tasks or tight spaces. We design a head-mounted wearable wireless oxygen saturation monitoring on head(WORTH)band based on NIRS for monitoring regional cerebral oxygen saturation. The band is embedded with a highly integrated central block, which comprises an optical module, a microprocessor unit, a wireless communication module, and a power management module. The performance of the WORTH band is evaluated by a controlled hypoxia experiment and a squat-to-stand experiment. The results confirm that the WORTH band can record cerebral oxygen saturation with an accuracy comparable to that of a clinical monitor and demonstrate that it is also effective during motion tasks.

关键词： near-infrared spectroscopy cerebral oxygen saturation oximeter rSO2 wearable

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Analysis of 24 patients with Achenbach’s syndrome

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World Journal of Clinical Cases 2019年第10期7卷 1103-1110页

作者： Fatih Ada Ferit Kasimzade Department of Cardiovascular Surgery Sivas Cumhuriyet University School of MedicineSivas 58140Turkey Department of Cardiovascular Surgery Turkiye Yuksek Ihtisas Training and Research HospitalAnkara 06100Turkey

BACKGROUND Achenbach’s syndrome is a rare condition,and the etiology is *** is most commonly seen in the volar plate of the hand distal interphalangeal *** diagnosed with Achenbach’s syndrome in cardiovascular surgery clinic were retrospectively compared with the *** To investigate the symptoms,findings,sociodemographic conditions,and laboratory data of patients diagnosed with Achenbach’s *** The study is a retrospective review of 24 patients diagnosed with Achenbach’s syndrome at Afyonkarahisar State Hospital between March 2015 and November 2016,at Sivas Numune Hospital between November 2016 and November 2017,and at Cumhuriyet University Cardiovascular Surgery Department between November 2017 and November *** the study,demographic characteristics of the patients,signs and symptoms of the disease,and laboratory data were analyzed *** The cohort consisted of 83.33%female patients and 16.67%male *** disease was most commonly located in the index finger of the right *** of the patients complained of bruising and *** pathologic findings were present in the laboratory *** to these results,it can be concluded that Achenbach syndrome is most commonly seen in the right index finger of middle-aged female *** Further research is needed to clarify Achenbach’s syndrome and to develop a diagnosis and treatment *** the awareness of this syndrome increases,large amounts of data will be *** to current knowledge,Achenbach’s syndrome is not among the known causes of mortality or ***,it is unknown whether it is seen in brain or other vital organs.

关键词： Achenbach’s syndrome Blue thumb Digital hematoma Digital hemorrhage Hand Pulse oximeter

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Patent hemostasis of radial artery:Comparison of two methods

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World Journal of Cardiology 2021年第10期13卷 574-584页

作者： Vassileios Kyriakopoulos Andrew Xanthopoulos Michail Papamichalis Spyridon Skoularigkis Chara Tzavara Emmanouil Papadakis Sotirios Patsilinakos Filippos Triposkiadis John Skoularigis Department of Cardiology Konstantopoulio General HospitalAthens 14233Greece Department of Cardiology University Hospital of LarissaLarissa 41110Greece Department of Health Medical SchoolUniversity of AthensAthens 11527Greece

BACKGROUND Radial artery obstruction is the most common complication of coronary angiography performed via transradial *** hemostasis can significantly reduce the risk of radial artery *** studies utilized sophisticated methods to evaluate radial artery *** and easily applicable methods for successful patent hemostasis are currently *** To determine which method(pulse oximeter vs the traditional radial artery palpation)is better to achieve patent *** This prospective,single center study included 299 consecutive patients who underwent coronary angiography or percutaneous coronary intervention between November 2017 and July *** less than 18 years old,with a history of radial artery disease,or no palpable artery pulse were excluded from the *** were randomly assigned to two *** the first group,radial artery flow was assessed by palpation of the artery during hemostasis(traditional method).In the second group,radial artery patency was estimated with the use of a pulse *** different compression devices were used for hemostasis(air chamber and pressure valve).The primary study endpoint was the achievement of successful patent *** The two groups(pulse oximeter vs artery palpation)had no significant differences in age,sex,body mass index,risk factors,or comorbidities except for supraventricular *** percentage of patients with successful patent hemostasis was significantly higher in the pulse oximeter group(82.2%vs 68.1%,P=0.005).A lower percentage of patients with spasm was recorded in the pulse oximeter group(9.9%vs 19.0%,P=0.024).The incidence of local complications,edema,bleeding,hematoma,vagotonia,or pain did not differ between the two *** the multivariate analysis,the use of a pulse oximeter(OR:2.35,95%CI:1.34-4.13,P=0.003)and advanced age(OR:1.04,95%CI:1.01-1.07,P=0.006),were independently associated with an increased probability of succe

关键词： Radial access Patent hemostasis Palpation oximeter Coronary angiography Radial artery occlusion

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