[An investigation of an accident of occupational acute hydrogen sulfide poisoning].

To investigate an accident of occupational acute hydrogen sulfide poisoning, and to analyze related clinical data. An investigation was performed for an accident of occupational acute hydrogen sulfide poisoning in a place in Shandong, China, in July 2016, and related clinical data were summarized. This was a typical accident of occupational acute hydrogen sulfide poisoning, and a lack of occupational protection and illegal operation were the major causes of this accident. Of all five patients, four experienced coma, toxic encephalopathy, and respiratory failure and were cured at last, and one had cortical syndrome after long-term treatment and died of pulmonary infection seven months later. In case of occupational acute hydrogen sulfide poisoning, rescuers should help the persons who are poisoned reasonably and meanwhile ensure their own safety.