锂中毒导致心律失常、血流动力学障碍1例

Hemodynamics and arrhythmia disorder caused by lithium poisoning:A case report

双相情感障碍是指临床上既有躁狂或轻躁狂发作,又有抑郁发作的一类心境障碍。锂盐是治疗双相情感障碍的一线药物,但其治疗剂量与中毒剂量较接近,当血锂浓度超过1.4 mmol/L时即可产生中毒症状,通常包括胃肠道反应和中枢神经系统症状等。心脏毒性在锂中毒相关病例中较为少见,但后果极为严重。本研究报道1例双相情感障碍患者,在每日超医嘱剂量服用碳酸锂缓释片,同时联用其他心境稳定剂后,血锂浓度达到6.08 mmol/L,并出现心律失常、休克、意识障碍、粗大震颤等症状,在经过血液透析等对症支持治疗后,患者躯体症状逐渐缓解。临床医生有必要加强对锂中毒的预防和识别。

Bipolar affective disorder refers to a category of mood disorders characterized clinically by the presence of both manic or hypomanic episodes and depressive episodes.Lithium stands out as the primary pharmacological intervention for managing bipolar affective disorder.However,its therapeutic dosage closely approaches toxic levels.Toxic symptoms appear when the blood lithium concentration surpasses 1.4 mmol/L,typically giving rise to gastrointestinal and central nervous system reactions.Cardiac toxicity is rare but serious in cases of lithium poisoning.The study reports a case of a patient with bipolar affective disorder who reached a blood lithium concentration of 6.08 mmol/L after the patient took lithium carbonate sustained-release tablets beyond the prescribed dosage daily and concurrently using other mood stabilizers.This resulted in symptoms such as arrhythmia,shock,impaired consciousness,and coarse tremors.Following symptomatic supportive treatment,including blood dialysis,the patient’s physical symptoms gradually improved.It is necessary for clinicians to strengthen the prevention and recognition of lithium poisoning.