1.Investigations of two poisoning incidents caused by Omphalotus guepiniformis from Nanping, Fujian Province, China
Zhiping ZHANG ; Xinyou HUANG ; Chunlei WU ; Yongkai ZHANG ; Zhenjiang LIU ; Mingjian YANG ; Chengli HOU ; Yizhe ZHANG ; Junjia LU ; Kaiping ZHANG ; Haijiao LI
Chinese Journal of Emergency Medicine 2020;29(3):355-359
Objective:To describe a systematic approach on identification of poisonous mushroom by investigating two cases of Omphalotus guepiniformis poisoning in Jianyang district, Nanping, Fujian province. Methods:Two incidents of food poisoning on 10 migrant workers were investigated. The remaining suspected mushroom samples were collected and the same fresh mushroom specimens were also collected in the following field investigations from the same dead tree and fallen trunk. These mushroom specimens were identified based on morphological and phylogenetic analyses.Results:On November 24 and 26, 2018, 8 and 2 migrant workers from Jianyang District, Nanping ate wild mushrooms and developed acute nausea, vomiting, abdominal pain and other symptoms within 10 to 90 min after consumption. They were diagnosed as mushroom poisoning, with gastroenteritis as the main manifestation. Further analysis showed that the more poisonous mushroom were consumed, the shorter latency and longer duration of nausea and vomiting were resulted. After admission, gastric lavage, catharsis, acid preparation, gastric protection, fluid replenishment and other symptomatic support treatments were given in time, all patients were discharged in 1-3 d. Based on morphological and phylogenetic analyses, the samples were identified as O. guepiniformis. Conclusions:The two incidents were caused by accidental consumption of O. guepiniformis. Awareness education about poisonous mushroom should be provided to migrant workers to prevent more such poisoning incidents in the future.
2.The influence of Inc parameterin the Monaco planning system on left-breast cancer volumetric modulated arc therapy planning
Wei YUAN ; Ruixin HE ; Yuemei ZHANG ; Zhenghuan LI ; Yi LI ; Yongkai LU ; Xiaozhi ZHANG
Journal of Xi'an Jiaotong University(Medical Sciences) 2022;43(5):757-762
【Objective】 To analyze the influence of different Inc parameters in the Monaco planning system on the left breast cancer volumetric modulated arc therapy (VMAT) planning, in the hope of providing some reference for plan design. 【Methods】 Seventeen left-breast cancer patients who were receiving radical radiotherapy were selected. The plans were enrolled in the design of VMAT with the same optimization conditions but different Inc parameters in the Monaco planning system. All plans used different Inc parameters like 10°, 20°, 30°, and 40°. The results of the plan were compared. The dosimetric parameters of the PTV and the organs at risk inquired by the plan were analyzed. The SPSS software was used for calculating the differences between the VMAT plans and evaluating the quality of the plans. 【Results】 The different Inc parameters affected the dosimetric parameters D