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Late side effects of radiation treatment for head and neck cancer
Itzhak Brook 대한방사선종양학회 2020 Radiation Oncology Journal Vol.38 No.2
Patients undergoing radiation therapy for head and neck cancer (HNC) experience significant early and long-term side effects. The likelihood and severity of complications depends on a number of factors, including the total dose of radiation delivered, over what time it was delivered and what parts of the head and neck received radiation. Late side effects include: permanent loss of saliva; osteoradionecrosis; radiation recall myositis, pharyngoesophageal stenosis; dental caries; oral cavity necrosis; fibrosis; impaired wound healing; skin changes and skin cancer; lymphedema; hypothyroidism, hyperparathyroidism, lightheadedness, dizziness and headaches; secondary cancer; and eye, ear, neurological and neck structures damage. Patients who undergo radiotherapy for nasopharyngeal carcinoma tend to suffer from chronic sinusitis. These side effects present difficult challenges to the patients and their caregivers and require life-long strategies to alleviate their deleterious effect on basic life functions and on the quality of life. This review presents these side effects and their management.
Itzhak Brook 대한소아응급의학회 2021 대한소아응급의학회지 Vol.8 No.1
Neonatal tetanus, also known as tetanus neonatorum, occurs in young infants of inadequately immunized mothers. It is a kind of generalized tetanus that is exhibited mainly by prevention of the release of the inhibitory neurotransmitters (i.e., disinhibition) and is initiated by tetanospasmin, an exotoxin created by Clostridium tetani. Contamination of the umbilical cord stump is the main cause. The typical, early manifestations are weakness and lack of ability to suck, continuing within hours to trismus, risus sardonicus, and ultimately generalized tetanic spasm, rigidity, and opisthotonus. Without treatment, neonatal tetanus has a poor outcome with a mortality rate above 90%. Mortality can result from asphyxia due to the spasm and hypersympathetic state. The managing goals are to neutralize its toxin, eradicate C. tetani, care for wound, and offer supportive care, such as mechanical ventilation, parenteral nutrition, sedation, neuromuscular blockade, and management of autonomic dysfunction.