Publications by authors named "T Usa"
Radiation Emergency Medical Preparedness in Japan: A Survey of Nuclear Emergency Core Hospitals.
Disaster Med Public Health Prep
February 2022
Article Synopsis
- - The study examined the status of Nuclear Emergency Core Hospitals (NECHs) in Japan, which were established for radiation disaster management following the 2011 Great East Japan Earthquake and nuclear accident.
- - Conducted in October 2018, the research involved 36 hospitals and revealed that only 31% had plans for a radiation disaster, highlighting the need for improved business continuity and risk communication strategies.
- - Key areas for healthcare improvement were identified, including media responses, internal communications, regional planning, and addressing public rumors during radiation emergencies.
Hypothyroidism is not commonly considered a cause of hyperkalemia. We previously reported that hyperkalemia was observed mainly in elderly patients treated with renin-angiotensin-aldosterone system (RAS) inhibitors when levothyroxine treatment was withdrawn for the thyroidectomized patients with thyroid carcinoma to undergo radioactive iodine treatment. Here, we investigated whether acute hypothyroidism causes hyperkalemia in patients who were not treated with RAS inhibitors.
View Article and Find Full Text PDFContext: The risk of thyroid cancer increases and persists for decades among individuals exposed to ionizing radiation in childhood, although the long-term effects of childhood exposure to medium to low doses of radiation on thyroid dysfunction and autoimmune thyroid diseases have remained unclear.
Objective: To evaluate radiation dose responses for the prevalence of thyroid dysfunction and autoimmune thyroid disease among atomic bomb survivors exposed in childhood.
Design, Setting, And Participants: Hiroshima and Nagasaki atomic bomb survivors who were younger than 10 years old at exposure underwent thyroid examinations at the Radiation Effects Research Foundation between 2007 and 2011, which was 62 to 66 years after the bombing.
Central diabetes insipidus (CDI) is characterized by polyuria and polydipsia due to a deficiency of vasopressin. Currently, the treatment goal for CDI is improvement of quality of life (QOL) by desmopressin (DDAVP) without developing hyponatremia. However, there is no reliable measure for QOL in CDI patients.
View Article and Find Full Text PDFObjective: Hyponatremia is observed in hypothyroidism, but it is not known if hypo- or hyperkalemia is associated with hypothyroidism. To study these questions, we determined serum potassium (K(+)) levels in thyroidectomized patients undergoing levothyroxine withdrawal before radioactive iodine (RAI) therapy for thyroid carcinoma.
Methods: We retrospectively studied the records of 108 patients who had undergone total thyroidectomy for thyroid carcinoma followed by levothyroxine withdrawal and then ablation with RAI at Nagasaki University Hospital from 2009-2013.