PT - JOURNAL ARTICLE AU - Jeongmi Moon AU - Byeongjo Chun TI - Spectrum of patients intentionally poisoned with an emulsified concentrate pendimethalin herbicide AID - 10.1136/emermed-2014-204184 DP - 2015 Aug 01 TA - Emergency Medicine Journal PG - 632--636 VI - 32 IP - 8 4099 - http://emj.bmj.com/content/32/8/632.short 4100 - http://emj.bmj.com/content/32/8/632.full SO - Emerg Med J2015 Aug 01; 32 AB - Objective Studies on the acute toxicity of pendimethalin herbicide in humans are limited. Therefore, this study investigated the clinical characteristics of acute intentional pendimethalin herbicide poisoning.Material and method A retrospective observational case series was conducted involving 17 patients with a history of intentional pendimethalin herbicide ingestion. Data were collected on clinical manifestations, management and final outcome.Result The mortality rate was 0%; however, four patients (23.5%) exhibited metabolic acidosis, hypotension or respiratory failure within the first 24 h after ingestion and required admission to the intensive care unit. The most common complication was respiratory failure, followed by hypotension. Complicated patients tended to show an altered mental state and X-ray abnormalities at presentation.Discussion and conclusions Physicians should be aware that patients who have been poisoned with pendimethalin herbicide, and particularly patients with a depressed mental state and X-ray abnormalities at presentation, may exhibit metabolic acidosis, hypotension, respiratory failure or pancreatitis.