Recurrent ventricular arrhythmia due to aconite intoxication successfully treated with landiolol:A case report

BACKGROUND Ventricular arrhythmias,such as ventricular tachycardia and fibrillation,are the main causes of death in patients with aconite poisoning.CASE SUMMARY A 51-year-old man presented to our emergency department because he was vomiting after ingesting aconite root to attempt suicide.On arrival,the patient was hemodynamically unstable,and his electrocardiogram revealed polymorphic ventricular extrasystoles and non-sustained ventricular tachycardia.Amiodarone was immediately administered for ventricular arrhythmia.However,the patient remained unresponsive.We administered continuous intravenous landiolol as the ventricular arrhythmia worsened,gradually suppressing it.The patient returned to sinus rhythm 16 h after arriving at the hospital.Some aconitum alkaloids act on voltage-gated Na+-channels and induce ventricular or supraventricular tachyarrhythmias.Landiolol suppresses sympathetic nerve activity through its blocking effect,preventing arrhythmia.CONCLUSION Landiolol can be a therapeutic option for amiodarone-refractory ventricular arrhythmias caused by aconite intoxication.

日本南海海槽东部首次海上天然气试采站位滞弹性应变恢复法（ASR）在原位应力分析中的应用

原位应力可通过钻井岩心的滞弹性应变恢复（ASR）法来计算。在日本南海海槽东部首次海上天然气试采站位选取一口钻井，从海底之下265～313m之间不同深度取得四块岩心，在钻探船上进行滞弹性应变测量。现场ASR测量结果表明，该研究区深度范围内处于重力作用下形成的正断层应力状态。在随后的实验室实验中，通过K0固结法，使所取岩心恢复到原位应力状态，然后在卸压过程中和卸压之后进行弹性和滞弹性应力测量，进而验证现场（船上）测量结果和量化原位应力值。这些实验室校准实验验证了伴随着应力释放ASR测量结果可为人工预加压力提供合理的估计。

越南Chicland酒店

岘港市是越南最著名的旅游城市之一,其主要的城市街道武元甲(Vo Nguyen Giap)公路沿着30公里的海岸线延伸,享有美丽的海景、灿烂的阳光、凉爽的气候和新鲜的空气。酒店就坐落在这条公路上,占地面积约699平方米,面对着My Khe海滩,距大海仅100米。Chicland酒店旨在满足业主的业务需求,但并未将建筑本身局限于普通的商业风格。