Right Hemiplegia Following Acute Carbon Monoxide Poisoning

Acute carbon monoxide (CO) poisoning remains a common cause of poison-related death and influences neurological function. An 83-year-old female was transferred to our emergency unit due to hypertension with dizziness, headache, and right hemiplegia. There was no radiographic evidence of ischemic stroke. The family members reported that the patient may have been exposed to CO by briquettes burned inside a closed room. High flow oxygen therapy was given for suspected CO intoxication and her symptoms quickly improved. Although we do not have clear evidence, we presume that hemiplegia in our patient was caused by CO intoxication, based on rapid recovery with oxygen therapy, carboxyhemoglobin (COHb) level elevation (3.0%), polycythemia, and neuroimaging. Despite the hematogenous effects of CO, paralysis appeared to be more severe on her right side than on her left side. MRI and blood tests helped to support CO as the suspected cause of her hemiplegia. This case reconfirms the importance of medical interviewing by medical practitioners, even in an emergency setting

Magneto-optical light modulation using the VCMA effect in MgO/Co–Fe/Gd/Gd–Fe layers

Voltage-controlled magnetic anisotropy (VCMA) effect of Co–Fe (0.4 nm)/Gd (0.2 nm)/GdxFe100−x multilayers with varying Gd–Fe thickness (5–10 nm) and composition (x = 20–24 at.%) was investigated. The magnetic anisotropy without voltage application drastically changed from in-plane to out of plane with an increase in Gd–Fe thickness or Gd concentration. The VCMA effect was observed in all samples, but the samples with small saturation field (or switching field) showed a clear VCMA effect. The magneto-optical light modulation of the Co–Fe (0.4 nm)/Gd (0.2 nm)/Gd24Fe76 (5 nm) was successfully manipulated via voltage application at ±1 V, in which the amplitude corresponds to 0.15 degrees of the Kerr rotation with a static magnetic field of 50 Oe

Transmural necrosis of the ascending colon secondary to traumatic hemorrhagic shock: A case report

Introduction: Acute mesenteric ischemia is caused by a severe reduction in blood flow to the intestine, eventually resulting in non-occlusive mesenteric ischemia, and less frequently, bowel necrosis, which is associated with high mortality. Case presentation: We report a 10-year-old boy with no past medical history with necrosis of the ascending colon after resuscitation from hemorrhagic shock due to femoral vein injury caused by a bicycle handlebar injury. Contrast-enhanced computed tomography demonstrated hypodense thickening of the ascending colon wall and intrahepatic portal gas. Exploratory laparoscopy demonstrated necrosis of the ascending colon and paralysis of the intestines. Conclusion: Colonic necrosis secondary to hemorrhagic shock in children without evidence of pre-existing cardiovascular disease is extremely uncommon. Lack of familiarity with this condition may cause serious complications. Clinicians must be aware of this disease to promptly diagnose and aggressively treat the condition early

PIV EXPERIMENT ON THE GAS-SOLID MULTIPHASE FLOW RELEVANT TO WIND- BLOWN SAND : COMPARISON OF VELOCITY FIELDS OF SAND PARTICLES AND AIR FLOW BY SIMULTANEOUS MEASUREMENT

ABSTRACT We measured simultaneously the air flow velocity and the suspended sand-particles velocity in the turbulent boundary layer, using particle image velocimetry (PIV), to study the wind-blown sand transport. It is important, in the context of the environmental issues, to elucidate the mechanism of the windblown sand, which gives rise to serious problems in arid/desert areas, such as the dust storm and the yellow sand. It is also necessary to understand quantitatively the interaction between the gas phase (air) and the solid phase (sand grains) in the multiphase flow. We found that the momentum exchange between the streamwise and the wall-normal velocities might be inhibited by sand grains and that the streamwise velocity of the gas phase in the multiphase flow was decreased by the momentum exchange between the air and the sand grains. It was observed that gas-phase flow was biased by a cluster of sand grains near a wall

Organ Donation after Extracorporeal Cardiopulmonary Resuscitation and Brain Death

A 38-year-old primipara Japanese woman suffered cardiac arrest due to a pulmonary thromboembolism 1 day after undergoing a cesarean section. Extracorporeal cardiopulmonary resuscitation was initiated and extracorporeal membrane oxygenation support was needed for 24 h. Despite intensive care, the patient was diagnosed with brain death on day 6. With the family’s consent, comprehensive end-of-life care including organ donation was discussed based on our hospital’s policy. The family decided to donate her organs. Specific training and education are required for emergency physicians to optimize the process of incorporating organ donation into end-of-life care while respecting the patient’s and family’s wishes