[Follow up analysis of 6 patients with severe trimethyltin chloride poisoning for 4 years].

Objective: Objective to investigate the health changes of patients with severe trimethyltin chloride (TMT) poisoning in four years. Methods: Six patients with severe TMT poisoning treated in the First Affiliated Hospital of Gannan Medical College in August 2016 were numbered 1, 2, 3, 4, 5 and 6 respectively. The patients were followed up 0.5, 2 and 4 years after poisoning and compared and analyzed. The follow-up contents include: symptom degree, score of simple mental intelligence examination scale (MMSE) and modified Rankin Scale (MRS) , cranial magnetic resonance imaging (MRI) , EEG, etc. Results: The symptoms of dizziness, headache, chest tightness, palpitation, nausea and vomiting decreased gradually in 6 patients. The symptoms of speech disorder and memory decline in No.1, 2 and 3 patients gradually increased, and the scores of MMSE and Mrs gradually decreased; Patients No.4, 5 and 6 had improved speech disorder, but their memory decreased, MMSE and Mrs scores were still flat, and mild cognitive impairment. The brain atrophy of No.1, 2 and 3 patients was aggravated, which showed obvious atrophy of hippocampus, temporal lobe, insular lobe and cerebellum and enlargement of ventricle; There was no significant change in brain atrophy in No.4, 5 and 6 patients. Conclusion: The neurotoxic symptoms in the later stage of severe TMT poisoning are still serious, and the neurotoxic time is long.目的： 了解重度三甲基氯化锡（TMT）中毒患者4年间健康变化。 方法： 于2016年8月，将赣南医学院第一附属医院收治的6例重度TMT中毒患者分别编序号为1、2、3、4、5、6号，对患者在中毒后0.5、2、4年进行随访及对比分析，随访内容包括：症状程度、《简易精神智能检查量表》（MMSE）评分及《改良Rankin量表》（mRS）评分、头颅磁共振成像（MRI）、脑电图等。 结果： 6例患者头晕、头痛、胸闷、心悸、恶心及呕吐等症状逐渐减轻。1、2、3号患者的言语障碍、记忆力下降症状逐渐加重，MMSE及mRS评分逐渐降低；4、5、6号患者言语障碍好转，但记忆力下降、MMSE及mRS评分仍平定位轻度认识功能障碍。1、2、3号患者脑萎缩加重，表现为海马、颞叶、岛叶、小脑萎缩明显及脑室扩大；4、5、6号患者脑萎缩变化不明显。 结论： 重度TMT中毒后期神经毒性症状仍然严重，且神经毒性时间长。.